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Misumi Y, Kawamura M, Yoshioka D, Kawamura T, Kawamura A, Ito Y, Mikami T, Taira M, Shimamura K, Miyagawa S. Restrictive annuloplasty or replacement on reverse remodeling for nonischemic dilated cardiomyopathy. J Cardiothorac Surg 2024; 19:201. [PMID: 38609986 PMCID: PMC11010381 DOI: 10.1186/s13019-024-02719-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Accepted: 03/29/2024] [Indexed: 04/14/2024] Open
Abstract
BACKGROUND For patients with nonischemic dilated cardiomyopathy (NIDCM), the indications for and results of mitral surgery remain controversial. We reviewed a strategy of mitral repair and replacement for clinically relevant secondary mitral regurgitation (MR) in patients with NIDCM. METHODS We retrospectively reviewed 65 patients with advanced NIDCM (LVEF < 40%) who underwent mitral surgery. Of them, 47 (72%) underwent mitral annuloplasty and 18 (28%) replacement for secondary MR. The primary endpoint was postoperative reduction in indexed LV end-systolic volume (LVESVI). RESULTS At baseline, there was no intergroup difference in LVESVI (123 ± 47 vs. 147 ± 37 ml/m2, P = 0.055), LVEF (27 ± 8% vs. 25 ± 6%, P = 0.41), incidence of severe MR (57% (27/47) vs. 72% (13/18), P = 0.40), or EuroSCORE II score (6.2% vs. 7.6%, P = 0.90). At 6 months, the annuloplasty group reduced LVESVI to a greater degree than the replacement group (P < 0.001), yielding significantly smaller postoperative LVESVI (96 ± 59 vs. 154 ± 61 ml/m2, P < 0.001) and better LVEF (P < 0.001). The rates of moderate/severe recurrent MR were 17% (8/47) and 0%, respectively. Multivariable analysis demonstrated that mitral annuloplasty (OR 6.10, 95% CI 1.14-32.8, P = 0.035) was significantly associated with postoperative LV reverse remodeling. Cumulative survival was not different between the groups (P = 0.26). CONCLUSIONS In patients with NIDCM, mitral annuloplasty reduced LV volume to a greater degree than did mitral replacement. These findings may assist with surgical options for secondary MR associated with NIDCM.
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Affiliation(s)
- Yusuke Misumi
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2-E1, Yamadaoka, Suita City, Osaka, 565-0871, Japan.
| | - Masashi Kawamura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2-E1, Yamadaoka, Suita City, Osaka, 565-0871, Japan
| | - Daisuke Yoshioka
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2-E1, Yamadaoka, Suita City, Osaka, 565-0871, Japan
| | - Takuji Kawamura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2-E1, Yamadaoka, Suita City, Osaka, 565-0871, Japan
| | - Ai Kawamura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2-E1, Yamadaoka, Suita City, Osaka, 565-0871, Japan
| | - Yoshito Ito
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2-E1, Yamadaoka, Suita City, Osaka, 565-0871, Japan
| | - Tsubasa Mikami
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2-E1, Yamadaoka, Suita City, Osaka, 565-0871, Japan
| | - Masaki Taira
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2-E1, Yamadaoka, Suita City, Osaka, 565-0871, Japan
| | - Kazuo Shimamura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2-E1, Yamadaoka, Suita City, Osaka, 565-0871, Japan
| | - Shigeru Miyagawa
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2-E1, Yamadaoka, Suita City, Osaka, 565-0871, Japan
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Wang R, Hasegawa M, Suginobe H, Yoshihara C, Ishii Y, Ueyama A, Ueda K, Hashimoto K, Hirose M, Ishii R, Narita J, Watanabe T, Kawamura T, Taira M, Ueno T, Miyagawa S, Ishida H. Impaired Relaxation in Induced Pluripotent Stem Cell-Derived Cardiomyocytes with Pathogenic TNNI3 Mutation of Pediatric Restrictive Cardiomyopathy. J Am Heart Assoc 2024; 13:e032375. [PMID: 38497452 PMCID: PMC11010001 DOI: 10.1161/jaha.123.032375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Accepted: 02/16/2024] [Indexed: 03/19/2024]
Abstract
BACKGROUND Restrictive cardiomyopathy (RCM) is characterized by impaired diastolic function with preserved ventricular contraction. Several pathogenic variants in sarcomere genes, including TNNI3, are reported to cause Ca2+ hypersensitivity in cardiomyocytes in overexpression models; however, the pathophysiology of induced pluripotent stem cell (iPSC)-derived cardiomyocytes specific to a patient with RCM remains unknown. METHODS AND RESULTS We established an iPSC line from a pediatric patient with RCM and a heterozygous TNNI3 missense variant, c.508C>T (p.Arg170Trp; R170W). We conducted genome editing via CRISPR/Cas9 technology to establish an isogenic correction line harboring wild type TNNI3 as well as a homozygous TNNI3-R170W. iPSCs were then differentiated to cardiomyocytes to compare their cellular physiological, structural, and transcriptomic features. Cardiomyocytes differentiated from heterozygous and homozygous TNNI3-R170W iPSC lines demonstrated impaired diastolic function in cell motion analyses as compared with that in cardiomyocytes derived from isogenic-corrected iPSCs and 3 independent healthy iPSC lines. The intracellular Ca2+ oscillation and immunocytochemistry of troponin I were not significantly affected in RCM-cardiomyocytes with either heterozygous or homozygous TNNI3-R170W. Electron microscopy showed that the myofibril and mitochondrial structures appeared to be unaffected. RNA sequencing revealed that pathways associated with cardiac muscle development and contraction, extracellular matrix-receptor interaction, and transforming growth factor-β were altered in RCM-iPSC-derived cardiomyocytes. CONCLUSIONS Patient-specific iPSC-derived cardiomyocytes could effectively represent the diastolic dysfunction of RCM. Myofibril structures including troponin I remained unaffected in the monolayer culture system, although gene expression profiles associated with cardiac muscle functions were altered.
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Affiliation(s)
- Renjie Wang
- Department of Pediatrics Osaka University Graduate School of Medicine Osaka Japan
| | - Moyu Hasegawa
- Department of Cardiovascular Surgery Osaka University Graduate School of Medicine Osaka Japan
| | - Hidehiro Suginobe
- Department of Pediatrics Osaka University Graduate School of Medicine Osaka Japan
| | - Chika Yoshihara
- Department of Pediatrics Osaka University Graduate School of Medicine Osaka Japan
| | - Yoichiro Ishii
- Department of Pediatric Cardiology Osaka Children's and Women's Hospital Osaka Japan
| | - Atsuko Ueyama
- Department of Pediatrics Osaka University Graduate School of Medicine Osaka Japan
| | - Kazutoshi Ueda
- Department of Pediatrics Osaka University Graduate School of Medicine Osaka Japan
| | - Kazuhisa Hashimoto
- Department of Pediatrics Osaka University Graduate School of Medicine Osaka Japan
| | - Masaki Hirose
- Department of Pediatrics Osaka University Graduate School of Medicine Osaka Japan
| | - Ryo Ishii
- Department of Pediatrics Osaka University Graduate School of Medicine Osaka Japan
| | - Jun Narita
- Department of Pediatrics Osaka University Graduate School of Medicine Osaka Japan
| | - Takuji Watanabe
- Department of Cardiovascular Surgery Osaka University Graduate School of Medicine Osaka Japan
| | - Takuji Kawamura
- Department of Cardiovascular Surgery Osaka University Graduate School of Medicine Osaka Japan
| | - Masaki Taira
- Department of Cardiovascular Surgery Osaka University Graduate School of Medicine Osaka Japan
| | - Takayoshi Ueno
- Department of Cardiovascular Surgery Osaka University Graduate School of Medicine Osaka Japan
| | - Shigeru Miyagawa
- Department of Cardiovascular Surgery Osaka University Graduate School of Medicine Osaka Japan
| | - Hidekazu Ishida
- Department of Pediatrics Osaka University Graduate School of Medicine Osaka Japan
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Miyagawa S, Kawamura T, Ito E, Takeda M, Iseoka H, Yokoyama J, Harada A, Mochizuki-Oda N, Imanishi-Ochi Y, Li J, Sasai M, Kitaoka F, Nomura M, Amano N, Takahashi T, Dohi H, Morii E, Sawa Y. Pre-clinical evaluation of the efficacy and safety of human induced pluripotent stem cell-derived cardiomyocyte patch. Stem Cell Res Ther 2024; 15:73. [PMID: 38475911 DOI: 10.1186/s13287-024-03690-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 02/28/2024] [Indexed: 03/14/2024] Open
Abstract
BACKGROUND Cell- or tissue-based regenerative therapy is an attractive approach to treat heart failure. A tissue patch that can safely and effectively repair damaged heart muscle would greatly improve outcomes for patients with heart failure. In this study, we conducted a preclinical proof-of-concept analysis of the efficacy and safety of clinical-grade human induced pluripotent stem cell-derived cardiomyocyte (hiPSC-CM) patches. METHODS A clinical-grade hiPSC line was established using peripheral blood mononuclear cells from a healthy volunteer that was homozygous for human leukocyte antigens. The hiPSCs were differentiated into cardiomyocytes. The obtained hiPSC-CMs were cultured on temperature-responsive culture dishes for patch fabrication. The cellular characteristics, safety, and efficacy of hiPSCs, hiPSC-CMs, and hiPSC-CM patches were analyzed. RESULTS The hiPSC-CMs expressed cardiomyocyte-specific genes and proteins, and electrophysiological analyses revealed that hiPSC-CMs exhibit similar properties to human primary myocardial cells. In vitro and in vivo safety studies indicated that tumorigenic cells were absent. Moreover, whole-genome and exome sequencing revealed no genomic mutations. General toxicity tests also showed no adverse events posttransplantation. A porcine model of myocardial infarction demonstrated significantly improved cardiac function and angiogenesis in response to cytokine secretion from hiPSC-CM patches. No lethal arrhythmias were observed. CONCLUSIONS hiPSC-CM patches are promising for future translational research and may have clinical application potential for the treatment of heart failure.
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Affiliation(s)
- Shigeru Miyagawa
- Department of Cardiovascular Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan.
| | - Takuji Kawamura
- Department of Cardiovascular Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Emiko Ito
- Department of Cardiovascular Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Maki Takeda
- Department of Cardiovascular Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Hiroko Iseoka
- Department of Cardiovascular Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Junya Yokoyama
- Department of Cardiovascular Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Akima Harada
- Department of Cardiovascular Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Noriko Mochizuki-Oda
- Department of Cardiovascular Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Yukiko Imanishi-Ochi
- Department of Cardiovascular Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Junjun Li
- Department of Cardiovascular Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Masao Sasai
- Department of Cardiovascular Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Fumiyo Kitaoka
- Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, 606-8507, Japan
| | - Masaki Nomura
- Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, 606-8507, Japan
| | - Naoki Amano
- Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, 606-8507, Japan
| | - Tomoko Takahashi
- Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, 606-8507, Japan
- Department of Environmental Preventive Medicine (Yamada Bee Company, Inc.), Center for Preventive Medical Sciences, Chiba University, Chiba, 263-8522, Japan
| | - Hiromi Dohi
- Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, 606-8507, Japan
| | - Eiichi Morii
- Department of Histopathology, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Yoshiki Sawa
- Department of Cardiovascular Surgery, Graduate School of Medicine, Osaka University, Suita, Osaka, 565-0871, Japan
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Yakhshimurodov U, Yamashita K, Kawamura T, Kawamura M, Miyagawa S. Paradigm shift in myocarditis treatment. J Cardiol 2024; 83:201-210. [PMID: 37597837 DOI: 10.1016/j.jjcc.2023.08.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 08/13/2023] [Accepted: 08/14/2023] [Indexed: 08/21/2023]
Abstract
Although most cases of myocarditis are self-limiting with a gradual improvement in cardiac function, the involvement of myocarditis in sudden cardiac death among children and young adults remains substantial, with rates of 3-17 % and 8.6-12 %, respectively. Moreover, the risk of developing chronic dilated cardiomyopathy ranges from 21 % to 30 % in all cases confirmed by biopsy. Current therapeutic strategies for myocarditis and its complications range from standard supportive care for heart failure and arrhythmias to etiologically oriented, case-based therapeutic options. For example, immunosuppression is indicated only in certain forms of acute myocarditis with clinical or endomyocardial biopsy evidence of immune checkpoint inhibitor-induced myocarditis and autoimmune diseases, including giant cell myocarditis, eosinophilic myocarditis, vasculitis, or cardiac sarcoidosis. However, our views on myocarditis treatment have changed considerably over the past two decades, thanks to the emergence of regenerative cells/tissues as well as drug and gene delivery systems. Cell-based therapies are now growing in popularity in any field of medicine. Studies evaluating the therapeutic efficacy of different stem cells in the treatment of acute myocarditis and its chronic complications have shown that although the experimental characteristics varied from study to study, in general, these strategies reduced inflammation and myocardial fibrosis while preventing myocarditis-induced systolic dysfunction and adverse remodeling in animal models.
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Affiliation(s)
- Ulugbek Yakhshimurodov
- Department of Cardiovascular Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Kizuku Yamashita
- Department of Cardiovascular Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan.
| | - Takuji Kawamura
- Department of Cardiovascular Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Masashi Kawamura
- Department of Cardiovascular Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Shigeru Miyagawa
- Department of Cardiovascular Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan
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Hamada Y, Shimamura K, Kin K, Kawamura T, Kashiyama N, Toda K, Sawa Y, Miyagawa S. Successful trans-femoral retrieval of a stuck axillary Impella 5.0 device. J Artif Organs 2024; 27:65-68. [PMID: 36436162 DOI: 10.1007/s10047-022-01373-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Accepted: 11/02/2022] [Indexed: 11/28/2022]
Abstract
We describe a case in which an axillary Impella 5.0, stuck in an area of calcification in the right subclavian artery, could not be retrieved in the usual manner. However, it was successfully removed using a long 22-Fr sheath and snaring catheter by means of the trans-femoral artery. Device retrieval using the trans-femoral artery snare technique is considered a valid option for removing the Impella device in patients who exhibit this complication.
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Affiliation(s)
- Yusuke Hamada
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Yamadaoka, 2-2, Suita-City, Osaka, 565-0087, Japan
| | - Kazuo Shimamura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Yamadaoka, 2-2, Suita-City, Osaka, 565-0087, Japan.
| | - Keiwa Kin
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Yamadaoka, 2-2, Suita-City, Osaka, 565-0087, Japan
| | - Takuji Kawamura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Yamadaoka, 2-2, Suita-City, Osaka, 565-0087, Japan
| | - Noriyuki Kashiyama
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Yamadaoka, 2-2, Suita-City, Osaka, 565-0087, Japan
| | - Koichi Toda
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Yamadaoka, 2-2, Suita-City, Osaka, 565-0087, Japan
| | - Yoshiki Sawa
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Yamadaoka, 2-2, Suita-City, Osaka, 565-0087, Japan
| | - Shigeru Miyagawa
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Yamadaoka, 2-2, Suita-City, Osaka, 565-0087, Japan
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Li J, Hua Y, Liu Y, Qu X, Zhang J, Ishida M, Yoshida N, Tabata A, Miyoshi H, Shiba M, Higo S, Sougawa N, Takeda M, Kawamura T, Matsuura R, Okuzaki D, Toyofuku T, Sawa Y, Liu L, Miyagawa S. Human induced pluripotent stem cell-derived closed-loop cardiac tissue for drug assessment. iScience 2024; 27:108992. [PMID: 38333703 PMCID: PMC10850789 DOI: 10.1016/j.isci.2024.108992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 11/16/2023] [Accepted: 01/18/2024] [Indexed: 02/10/2024] Open
Abstract
Human iPSC-derived cardiomyocytes (hiPSC-CMs) exhibit functional immaturity, potentially impacting their suitability for assessing drug proarrhythmic potential. We previously devised a traveling wave (TW) system to promote maturation in 3D cardiac tissue. To align with current drug assessment paradigms (CiPA and JiCSA), necessitating a 2D monolayer cardiac tissue, we integrated the TW system with a multi-electrode array. This gave rise to a hiPSC-derived closed-loop cardiac tissue (iCT), enabling spontaneous TW initiation and swift pacing of cardiomyocytes from various cell lines. The TW-paced cardiomyocytes demonstrated heightened sarcomeric and functional maturation, exhibiting enhanced response to isoproterenol. Moreover, these cells showcased diminished sensitivity to verapamil and maintained low arrhythmia rates with ranolazine-two drugs associated with a low risk of torsades de pointes (TdP). Notably, the TW group displayed increased arrhythmia rates with high and intermediate risk TdP drugs (quinidine and pimozide), underscoring the potential utility of this system in drug assessment applications.
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Affiliation(s)
- Junjun Li
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Ying Hua
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Yuting Liu
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Xiang Qu
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Jingbo Zhang
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Masako Ishida
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Noriko Yoshida
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Akiko Tabata
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Hayato Miyoshi
- Fujifilm Corporation, Ashigarakami 258-8577, Kanagawa, Japan
| | - Mikio Shiba
- Cardiovascular Division, Osaka Police Hospital, Tennoji 543-0035, Osaka, Japan
| | - Shuichiro Higo
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita 565-0871, Osaka, Japan
- Department of Medical Therapeutics for Heart Failure, Osaka University Graduate School of Medicine, Suita 565-0871, Osaka, Japan
| | - Nagako Sougawa
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
- Department of Physiology, Osaka Dental University, 8-1 Kuzuha Hanazono-cho, Hirakata 573-1121, Osaka, Japan
| | - Maki Takeda
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Takuji Kawamura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Ryohei Matsuura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Daisuke Okuzaki
- Laboratory of Human Immunology (Single Cell Genomics), WPI Immunology Research Center, Osaka University, Osaka, Japan
- Genome Information Research Center, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Toshihiko Toyofuku
- Department of Immunology and Molecular Medicine, Graduate School of Medicine, Osaka University, Suita 565-0871, Osaka, Japan
| | - Yoshiki Sawa
- Department of Future Medicine, Division of Health Science, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Li Liu
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Shigeru Miyagawa
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
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7
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Takada K, Imai K, Yamada T, Ohata K, Kanesaka T, Nagami Y, Yamasaki Y, Kobara H, Inokuchi Y, Chino A, Yamaguchi S, Ikehara H, Kawamura T, Yabuuchi Y, Mizuguchi Y, Ikematsu H, Yokoi C, Hattori S, Ohno K, Yoshizawa Y, Fukuzawa M, Tsuji Y, Konishi J, Yamamura T, Osawa S, Oka S, Hikichi T, Togashi K, Hirasawa K, Uraoka T, Takeuchi Y, Chiba H, Komeda Y, Doyama H, Oba MS, Saito Y. Efficacy of endoscopic submucosal resection with a ligation device for small rectal neuroendocrine tumor: study protocol of a multicenter open-label randomized control trial (BANDIT trial). BMC Gastroenterol 2024; 24:69. [PMID: 38331727 PMCID: PMC10854141 DOI: 10.1186/s12876-024-03130-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 01/09/2024] [Indexed: 02/10/2024] Open
Abstract
BACKGROUND Endoscopic resection is widely accepted as a local treatment for rectal neuroendocrine tumors sized ≤ 10 mm. However, there is no consensus on the best method for the endoscopic resection of rectal neuroendocrine tumors. As a simplified endoscopic procedure, endoscopic submucosal resection with a ligation device (ESMR-L) indicates a histologically complete resection rate comparable to that of endoscopic submucosal dissection (ESD). We hypothesized that ESMR-L than ESD would be preferred for rectal neuroendocrine tumors. Hence, this trial aimed to verify whether ESMR-L is non-inferior to ESD in terms of histologically complete resection rate. METHODS This is a prospective, open-label, multicenter, non-inferiority, randomized controlled trial of two parallel groups, conducted at the Shizuoka Cancer Center and 31 other institutions in Japan. Patients with a lesion endoscopically diagnosed as a rectal neuroendocrine tumor ≤ 10 mm are eligible for inclusion. A total of 266 patients will be recruited and randomized to undergo either ESD or ESMR-L. The primary endpoint is the rate of en bloc resection with histologically tumor-free margins (R0 resection). Secondary endpoints include en bloc resection rate, procedure time, adverse events, hospitalization days, total devices and agents cost, adverse event rate between groups with and without resection site closure, outcomes between expert and non-expert endoscopists, and factors associated with R0 resection failure. The sample size is determined based on the assumption that the R0 resection rate will be 95.2% in the ESD group and 95.3% in the ESMR-L group, with a non-inferiority margin of 8%. With a one-sided significance level of 0.05 and a power of 80%, 226 participants are required. Assuming a dropout rate of 15%, 266 patients will be included in this study. DISCUSSION This is the first multicenter randomized controlled trial comparing ESD and ESMR-L for the R0 resection of rectal neuroendocrine tumors ≤ 10 mm. This will provide valuable information for standardizing endoscopic resection methods for rectal neuroendocrine tumors. TRIAL REGISTRATION Japan Registry of Clinical Trials, jRCTs042210124. Registered on Jan 6, 2022.
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Affiliation(s)
- Kazunori Takada
- Division of Endoscopy, Shizuoka Cancer Center, 1007 Shimonagakubo, NagaizumiShizuoka, 411-8777, Japan
| | - Kenichiro Imai
- Division of Endoscopy, Shizuoka Cancer Center, 1007 Shimonagakubo, NagaizumiShizuoka, 411-8777, Japan.
| | - Takanori Yamada
- Department of Gastroenterology, Iwata City Hospital, Shizuoka, Japan
| | - Ken Ohata
- Department of Gastroenterology, NTT Medical Center Tokyo, Tokyo, Japan
| | - Takashi Kanesaka
- Department of Gastrointestinal Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - Yasuaki Nagami
- Department of Gastroenterology, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Yasushi Yamasaki
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Hideki Kobara
- Department of Gastroenterology and Neurology, Faculty of Medicine, Kagawa University, Takamatsu, Japan
| | - Yasuhiro Inokuchi
- Department of Gastroenterology, Kanagawa Cancer Center, Kanagawa, Japan
| | - Akiko Chino
- Department of Gastroenterology, Cancer Institute Hospital of the Japanese Foundation for Cancer Research, Tokyo, Japan
| | | | - Hisatomo Ikehara
- Department of Gastroenterology, Kitasato University School of Medicine, Kanagawa, Japan
| | - Takuji Kawamura
- Department of Gastroenterology, Kyoto Second Red Cross Hospital, Kyoto, Japan
| | - Yohei Yabuuchi
- Department of Gastroenterology, Kobe City Medical Center General Hospital, Hyogo, Japan
| | | | - Hiroaki Ikematsu
- Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Chiba, Japan
| | - Chizu Yokoi
- Endoscopy Division, National Center for Global Health and Medicine, Tokyo, Japan
| | - Santa Hattori
- Gastrointestinal Center, Sano Hospital, Hyogo, Japan
| | - Kazuya Ohno
- Department of Gastroenterology, Shizuoka General Hospital, Shizuoka, Japan
| | - Yashiro Yoshizawa
- Department of Gastroenterology, Seirei Hamamatsu General Hospital, Shizuoka, Japan
| | - Masakatsu Fukuzawa
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yosuke Tsuji
- Next-Generation Endoscopic Computer Vision, Graduate School of Medicine, the University of Tokyo, Tokyo, Japan
| | - Jun Konishi
- Department of Gastroenterology, Tochigi Cancer Center, Tochigi, Japan
| | - Takeshi Yamamura
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Satoshi Osawa
- Department of Endoscopic and Photodynamic Medicine, Hamamatsu University School of Medicine, Shizuoka, Japan
| | - Shiro Oka
- Department of Endoscopy, Hiroshima University Hospital, Hiroshima, Japan
| | - Takuto Hikichi
- Department of Endoscopy, Fukushima Medical University Hospital, Fukushima, Japan
| | - Kazutomo Togashi
- Department of Coloproctology, Aizu Medical Center, Fukushima Medical University, Fukushima, Japan
| | - Kingo Hirasawa
- Division of Endoscopy, Yokohama City University Medical Center, Yokohama, Japan
| | - Toshio Uraoka
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Yoji Takeuchi
- Department of Gastrointestinal Oncology, Osaka International Cancer Institute, Osaka, Japan
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Hideyuki Chiba
- Department of Gastroenterology, Omori Red Cross Hospital, Tokyo, Japan
| | - Yoriaki Komeda
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Hisashi Doyama
- Department of Gastroenterology, Ishikawa Prefectural Central Hospital, Ishikawa, Japan
| | - Mari S Oba
- Department of Clinical Data Science, Clinical Research and Education Promotion Division, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Yutaka Saito
- Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan
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Hasegawa M, Miki K, Kawamura T, Takei Sasozaki I, Higashiyama Y, Tsuchida M, Kashino K, Taira M, Ito E, Takeda M, Ishida H, Higo S, Sakata Y, Miyagawa S. Gene correction and overexpression of TNNI3 improve impaired relaxation in engineered heart tissue model of pediatric restrictive cardiomyopathy. Dev Growth Differ 2024; 66:119-132. [PMID: 38193576 DOI: 10.1111/dgd.12909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 12/20/2023] [Accepted: 12/24/2023] [Indexed: 01/10/2024]
Abstract
Research on cardiomyopathy models using engineered heart tissue (EHT) created from disease-specific induced pluripotent stem cells (iPSCs) is advancing rapidly. However, the study of restrictive cardiomyopathy (RCM), a rare and intractable cardiomyopathy, remains at the experimental stage because there is currently no established method to replicate the hallmark phenotype of RCM, particularly diastolic dysfunction, in vitro. In this study, we generated iPSCs from a patient with early childhood-onset RCM harboring the TNNI3 R170W mutation (R170W-iPSCs). The properties of R170W-iPSC-derived cardiomyocytes (CMs) and EHTs were evaluated and compared with an isogenic iPSC line in which the mutation was corrected. Our results indicated altered calcium kinetics in R170W-iPSC-CMs, including prolonged tau, and an increased ratio of relaxation force to contractile force in R170W-EHTs. These properties were reversed in the isogenic line, suggesting that our model recapitulates impaired relaxation of RCM, i.e., diastolic dysfunction in clinical practice. Furthermore, overexpression of wild-type TNNI3 in R170W-iPSC-CMs and -EHTs effectively rescued impaired relaxation. These results highlight the potential efficacy of EHT, a modality that can accurately recapitulate diastolic dysfunction in vitro, to elucidate the pathophysiology of RCM, as well as the possible benefits of gene therapies for patients with RCM.
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Affiliation(s)
- Moyu Hasegawa
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Kenji Miki
- Premium Research Institute for Human Metaverse Medicine, Osaka University, Osaka, Japan
| | - Takuji Kawamura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Ikue Takei Sasozaki
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yuki Higashiyama
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Masaru Tsuchida
- NTT Communication Science Laboratories, Media Information Research Department, Kanagawa, Japan
| | - Kunio Kashino
- Premium Research Institute for Human Metaverse Medicine, Osaka University, Osaka, Japan
- NTT Communication Science Laboratories, Media Information Research Department, Kanagawa, Japan
| | - Masaki Taira
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Emiko Ito
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Maki Takeda
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Hidekazu Ishida
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Shuichiro Higo
- Department of Medical Therapeutics for Heart Failure, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yasushi Sakata
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Shigeru Miyagawa
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
- Premium Research Institute for Human Metaverse Medicine, Osaka University, Osaka, Japan
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9
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Iwata R, Kawamura T, Okabe F, Fujita Z. Effects of palm cooling on thermoregulatory-related and subjective indicators during exercise in a hot environment. J Therm Biol 2024; 120:103803. [PMID: 38382413 DOI: 10.1016/j.jtherbio.2024.103803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 12/03/2023] [Accepted: 01/19/2024] [Indexed: 02/23/2024]
Abstract
Palm cooling is a simple and easily implemented intervention strategy during exercise. We aimed to examine the effects of bilateral palm cooling before and during exercise on thermoregulatory-related and subjective indicators in a hot environment. Ten active men (age: 21 ± 1 years; height 172.2 ± 5.7 cm; weight 67.4 ± 7.2 kg) underwent three experimental trials at the same time of the day, consisting of palm cooling with 12°C (ICE12°C), palm cooling with 0°C (ICE0°C) where vasoconstriction is supposed to occur, and control (CON) trials. After 30 min rest at ambient temperature, participants performed 20 min exercise at 33°C, 60% relative humidity. Rectal temperature, skin temperature, rate of perceived exertion, heart rate, local sweat rate, oxygen uptake, carbon dioxide production, and respiratory exchange ratio did not differ between the trials. Thermal sensation and comfort were lower in the ICE12°C and ICE0°C trials than in the CON trial, but the ICE0°C trial showed a longer duration of cold sensation than the ICE12°C trial. Palm cooling at 12°C and 0°C improved thermal sensation and thermal comfort during exercise in a hot environment, although there was no effect on core body temperature, sweating, and cardiorespiratory function. Bilateral palm cooling at 12°C and 0°C improve subjective indicators during exercise in a hot environment and these effects are slightly greater at 0°C than at 12°C cooling, while having no effect on thermoregulatory-related indicators. These results suggest that bilateral palm cooling at lower temperatures may safely reduce the perception of warmth during exercise in a hot environment.
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Affiliation(s)
- Risa Iwata
- Japan Institute of Sport Sciences, 3-15-1 Nishigaoka, Kita-ku, Tokyo, 115-0056, Japan; Waseda Institute for Sport Sciences, 2-579-15 Mikajima, Tokorozawa City, Saitama, 359-1192, Japan.
| | - Takuji Kawamura
- Waseda Institute for Sport Sciences, 2-579-15 Mikajima, Tokorozawa City, Saitama, 359-1192, Japan
| | - Fumitake Okabe
- Faculty of Sport Sciences, Waseda University, 2-579-15 Mikajima, Tokorozawa, Saitama, 359-1192, Japan
| | - Zenya Fujita
- Faculty of Sport Sciences, Waseda University, 2-579-15 Mikajima, Tokorozawa, Saitama, 359-1192, Japan
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10
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Lei Z, Mozaffaritabar S, Kawamura T, Koike A, Kolonics A, Kéringer J, Pinho RA, Sun J, Shangguan R, Radák Z. The effects of long-term lactate and high-intensity interval training (HIIT) on brain neuroplasticity of aged mice. Heliyon 2024; 10:e24421. [PMID: 38293399 PMCID: PMC10826720 DOI: 10.1016/j.heliyon.2024.e24421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 12/02/2023] [Accepted: 01/09/2024] [Indexed: 02/01/2024] Open
Abstract
Extensive research has confirmed numerous advantages of exercise for promoting brain health. More recent studies have proposed the potential benefits of lactate, the by-product of exercise, in various aspects of brain function and disorders. However, there remains a gap in understanding the effects of lactate dosage and its impact on aged rodents. The present study first examined the long-term effects of three different doses of lactate intervention (2000 mg/kg, 1000 mg/kg, and 500 mg/kg) and high-intensity interval training (HIIT) on aging mice (20-22 months) as the 1st experiment. Subsequently, in the 2nd experiment, we investigated the long-term effects of 500 mg/kg lactate intervention and HIIT on brain neuroplasticity in aged mice (25-27 months). The results of the 1st experiment demonstrated that both HIIT and different doses of lactate intervention (500 mg/kg and 2000 mg/kg) positively impacted the neuroplasticity biomarker VEGF in the hippocampus of aging mice. Subsequently, the 2nd experiment revealed that long-term HIIT significantly improved the performance of mice in open-field, novel object recognition, and passive avoidance tests. However, lactate intervention did not significantly affect these behavioral tests. Moreover, compared to the control group, both HIIT and lactate intervention positively influenced the angiogenesis signaling pathway (p/t-AKT/ENOS/VEGF), mitochondrial biomarker (SDHA), and metabolic protein (p/t-CREB, p/t-HSL, and LDH) in the hippocampus of aged mice. Notably, only lactate intervention significantly elevated the BDNF (PGC-1α, SIRT1, and BDNF) signaling pathway and metabolic content (lactate and pyruvate). In the end, long-term HIIT and lactate intervention failed to change the protein expression of p/t-MTOR, iNOS, nNOS, HIF-1α, SYNAPSIN, SIRT3, NAMPT, CS, FNDC5 and Pan Lactic aid-Lysine in the hippocampus of aged mice. In summary, the present study proved that long-term HIIT and lactate treatment have positive effects on the brain functions of aged mice, suggesting the potential usage of lactate as a therapeutic strategy in neurodegenerative diseases in the elderly population.
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Affiliation(s)
- Zhou Lei
- Research Institute of Molecular Exercise Science, Hungarian University of Sports Science, H-1123, Budapest, Hungary
| | - Soroosh Mozaffaritabar
- Research Institute of Molecular Exercise Science, Hungarian University of Sports Science, H-1123, Budapest, Hungary
| | - Takuji Kawamura
- Research Institute of Molecular Exercise Science, Hungarian University of Sports Science, H-1123, Budapest, Hungary
- Waseda Institute for Sport Sciences, Waseda University, Saitama, 359-1192, Japan
| | - Atsuko Koike
- Department of Life Sciences, Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, 153–8902, Japan
| | - Attila Kolonics
- Research Institute of Molecular Exercise Science, Hungarian University of Sports Science, H-1123, Budapest, Hungary
| | - Johanna Kéringer
- Research Institute of Molecular Exercise Science, Hungarian University of Sports Science, H-1123, Budapest, Hungary
| | - Ricardo A. Pinho
- Laboratory of Exercise Biochemistry in Health, Graduate Program in Health Sciences, School of Medicine, Pontifícia Universidade Católica do Paraná, Curitiba, 80215-901, Brazil
| | - Jingquan Sun
- Institute of Sports Science, Sichuan University, No. 17, Section 3, Renmin South Road, Chengdu, China
| | - Ruonan Shangguan
- Department of Physical Education, Chengdu University, 610106, Chengdu, China
| | - Zsolt Radák
- Research Institute of Molecular Exercise Science, Hungarian University of Sports Science, H-1123, Budapest, Hungary
- Waseda Institute for Sport Sciences, Waseda University, Saitama, 359-1192, Japan
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11
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Zhou L, Mozaffaritabar S, Kolonics A, Kawamura T, Koike A, Kéringer J, Gu Y, Karabanov R, Radák Z. Long-term iron supplementation combined with vitamin B6 enhances maximal oxygen uptake and promotes skeletal muscle-specific mitochondrial biogenesis in rats. Front Nutr 2024; 10:1335187. [PMID: 38288063 PMCID: PMC10823527 DOI: 10.3389/fnut.2023.1335187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 12/30/2023] [Indexed: 01/31/2024] Open
Abstract
Introduction Iron is an essential micronutrient that plays a crucial role in various biological processes. Previous studies have shown that iron supplementation is related to exercise performance and endurance capacity improvements. However, the underlying mechanisms responsible for these effects are not well understood. Recent studies have suggested the beneficial impact of iron supplementation on mitochondrial function and its ability to rescue mitochondrial function under adverse stress in vitro and rodents. Based on current knowledge, our study aimed to investigate whether the changes in exercise performance resulting from iron supplementation are associated with its effect on mitochondrial function. Methods In this study, we orally administered an iron-based supplement to rats for 30 consecutive days at a dosage of 0.66 mg iron/kg body weight and vitamin B6 at a dosage of 0.46 mg/kg. Results Our findings reveal that long-term iron supplementation, in combination with vitamin B6, led to less body weight gained and increased VO2 max in rats. Besides, the treatment substantially increased Complex I- and Complex II-driven ATP production in intact mitochondria isolated from gastrocnemius and cerebellum. However, the treatment did not change basal and succinate-induced ROS production in mitochondria from the cerebellum and skeletal muscle. Furthermore, the iron intervention significantly upregulated several skeletal muscle mitochondrial biogenesis and metabolism-related biomarkers, including PGC-1α, SIRT1, NRF-2, SDHA, HSL, MTOR, and LON-P. However, it did not affect the muscular protein expression of SIRT3, FNDC5, LDH, FIS1, MFN1, eNOS, and nNOS. Interestingly, the iron intervention did not exert similar effects on the hippocampus of rats. Discussion In conclusion, our study demonstrates that long-term iron supplementation, in combination with vitamin B6, increases VO2 max, possibly through its positive role in regulating skeletal muscle-specific mitochondrial biogenesis and energy production in rats.
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Affiliation(s)
- Lei Zhou
- Research Institute of Molecular Exercise Science, Hungarian University of Sport Science, Budapest, Hungary
| | - Soroosh Mozaffaritabar
- Research Institute of Molecular Exercise Science, Hungarian University of Sport Science, Budapest, Hungary
| | - Attila Kolonics
- Research Institute of Molecular Exercise Science, Hungarian University of Sport Science, Budapest, Hungary
| | - Takuji Kawamura
- Research Institute of Molecular Exercise Science, Hungarian University of Sport Science, Budapest, Hungary
- Waseda Institute for Sport Sciences, Waseda University, Saitama, Japan
| | - Atsuko Koike
- Department of Life Sciences, Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, Japan
| | - Johanna Kéringer
- Research Institute of Molecular Exercise Science, Hungarian University of Sport Science, Budapest, Hungary
| | - Yaodong Gu
- Faculty of Sports Science, Ningbo University, Ningbo, China
| | | | - Zsolt Radák
- Research Institute of Molecular Exercise Science, Hungarian University of Sport Science, Budapest, Hungary
- Waseda Institute for Sport Sciences, Waseda University, Saitama, Japan
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12
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Kawamura T, Radak Z, Tabata H, Akiyama H, Nakamura N, Kawakami R, Ito T, Usui C, Jokai M, Torma F, Kim H, Miyachi M, Torii S, Suzuki K, Ishii K, Sakamoto S, Oka K, Higuchi M, Muraoka I, McGreevy KM, Horvath S, Tanisawa K. Associations between cardiorespiratory fitness and lifestyle-related factors with DNA methylation-based ageing clocks in older men: WASEDA'S Health Study. Aging Cell 2024; 23:e13960. [PMID: 37584423 PMCID: PMC10776125 DOI: 10.1111/acel.13960] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 07/31/2023] [Accepted: 08/02/2023] [Indexed: 08/17/2023] Open
Abstract
DNA methylation-based age estimators (DNAm ageing clocks) are currently one of the most promising biomarkers for predicting biological age. However, the relationships between cardiorespiratory fitness (CRF), measured directly by expiratory gas analysis, and DNAm ageing clocks are largely unknown. We investigated the relationships between CRF and the age-adjusted value from the residuals of the regression of DNAm ageing clock to chronological age (DNAmAgeAcceleration: DNAmAgeAccel) and attempted to determine the relative contribution of CRF to DNAmAgeAccel in the presence of other lifestyle factors. DNA samples from 144 Japanese men aged 65-72 years were used to appraise first- (i.e., DNAmHorvath and DNAmHannum) and second- (i.e., DNAmPhenoAge, DNAmGrimAge, and DNAmFitAge) generation DNAm ageing clocks. Various surveys and measurements were conducted, including physical fitness, body composition, blood biochemical parameters, nutrient intake, smoking, alcohol consumption, disease status, sleep status, and chronotype. Both oxygen uptake at ventilatory threshold (VO2 /kg at VT) and peak oxygen uptake (VO2 /kg at Peak) showed a significant negative correlation with GrimAgeAccel, even after adjustments for chronological age and smoking and drinking status. Notably, VO2 /kg at VT and VO2 /kg at Peak above the reference value were also associated with delayed GrimAgeAccel. Multiple regression analysis showed that calf circumference, serum triglyceride, carbohydrate intake, and smoking status, rather than CRF, contributed more to GrimAgeAccel and FitAgeAccel. In conclusion, although the contribution of CRF to GrimAgeAccel and FitAgeAccel is relatively low compared to lifestyle-related factors such as smoking, the results suggest that the maintenance of CRF is associated with delayed biological ageing in older men.
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Affiliation(s)
- Takuji Kawamura
- Waseda Institute for Sport Sciences, Waseda UniversitySaitamaJapan
- Research Centre for Molecular Exercise ScienceHungarian University of Sports ScienceBudapestHungary
| | - Zsolt Radak
- Research Centre for Molecular Exercise ScienceHungarian University of Sports ScienceBudapestHungary
- Faculty of Sport SciencesWaseda UniversitySaitamaJapan
| | - Hiroki Tabata
- Waseda Institute for Sport Sciences, Waseda UniversitySaitamaJapan
- Sportology CentreJuntendo University Graduate School of MedicineTokyoJapan
| | - Hiroshi Akiyama
- Graduate School of Sport SciencesWaseda UniversitySaitamaJapan
| | | | - Ryoko Kawakami
- Waseda Institute for Sport Sciences, Waseda UniversitySaitamaJapan
- Physical Fitness Research Institute, Meiji Yasuda Life Foundation of Health and WelfareTokyoJapan
| | - Tomoko Ito
- Waseda Institute for Sport Sciences, Waseda UniversitySaitamaJapan
- Department of Food and NutritionTokyo Kasei UniversityTokyoJapan
| | - Chiyoko Usui
- Faculty of Sport SciencesWaseda UniversitySaitamaJapan
| | - Matyas Jokai
- Research Centre for Molecular Exercise ScienceHungarian University of Sports ScienceBudapestHungary
| | - Ferenc Torma
- Faculty of Health and Sport SciencesUniversity of TsukubaIbarakiJapan
| | - Hyeon‐Ki Kim
- Research Centre for Molecular Exercise ScienceHungarian University of Sports ScienceBudapestHungary
| | | | - Suguru Torii
- Faculty of Sport SciencesWaseda UniversitySaitamaJapan
| | | | - Kaori Ishii
- Faculty of Sport SciencesWaseda UniversitySaitamaJapan
| | - Shizuo Sakamoto
- Faculty of Sport SciencesWaseda UniversitySaitamaJapan
- Faculty of Sport ScienceSurugadai UniversitySaitamaJapan
| | - Koichiro Oka
- Faculty of Sport SciencesWaseda UniversitySaitamaJapan
| | | | - Isao Muraoka
- Faculty of Sport SciencesWaseda UniversitySaitamaJapan
| | - Kristen M. McGreevy
- Department of Biostatistics, Fielding School of Public HealthUniversity of California Los AngelesLos AngelesCaliforniaUSA
| | - Steve Horvath
- Department of Biostatistics, Fielding School of Public HealthUniversity of California Los AngelesLos AngelesCaliforniaUSA
- Department of Human Genetics, David Geffen School of MedicineUniversity of California Los AngelesLos AngelesCaliforniaUSA
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13
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Tominaga Y, Kawamura T, Ito E, Takeda M, Harada A, Torigata K, Sakaniwa R, Sawa Y, Miyagawa S. Pleiotropic effects of extracellular vesicles from induced pluripotent stem cell-derived cardiomyocytes on ischemic cardiomyopathy: A preclinical study. J Heart Lung Transplant 2024; 43:85-99. [PMID: 37611882 DOI: 10.1016/j.healun.2023.08.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 07/29/2023] [Accepted: 08/16/2023] [Indexed: 08/25/2023] Open
Abstract
BACKGROUND Stem cell-secreted extracellular vesicles (EVs) play essential roles in intercellular communication and restore cardiac function in animal models of ischemic heart disease. However, few studies have used EVs derived from clinical-grade stem cells and their derivatives with stable quality. Moreover, there is little information on the mechanism and time course of the multifactorial effect of EV therapy from the acute to the chronic phase, the affected cells, and whether the effects are direct or indirect. METHODS Induced pluripotent stem cell-derived cardiomyocytes (iPSCM) were produced using a clinical-grade differentiation induction system. EVs were isolated from the conditioned medium by ultracentrifugation and characterized in silico, in vitro, and in vivo. A rat model of myocardial infarction was established by left anterior descending artery ligation and treated with iPSCM-derived EVs. RESULTS iPSCM-derived EVs contained microRNAs and proteins associated with angiogenesis, antifibrosis, promotion of M2 macrophage polarization, cell proliferation, and antiapoptosis. iPSCM-derived EV treatment improved left ventricular function and reduced mortality in the rat model by improving vascularization and suppressing fibrosis and chronic inflammation in the heart. EVs were uptaken by cardiomyocytes, endothelial cells, fibroblasts, and macrophages in the cardiac tissues. The pleiotropic effects occurred due to the direct effects of microRNAs and proteins encapsulated in EVs and indirect paracrine effects on M2 macrophages. CONCLUSIONS Clinical-grade iPSCM-derived EVs improve cardiac function by regulating various genes and pathways in various cell types and may have clinical potential for treating ischemic heart disease.
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Affiliation(s)
- Yuji Tominaga
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Takuji Kawamura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Emiko Ito
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Maki Takeda
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Akima Harada
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Kosuke Torigata
- Department of Frontier Regenerative Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Ryoto Sakaniwa
- Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yoshiki Sawa
- Department of Future Medicine, Division of Health Science, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Shigeru Miyagawa
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, Japan.
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14
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Kawamura A, Yoshioka D, Kawamura M, Kawamura T, Shijo T, Maeda K, Matsuura R, Yamashita K, Misumi Y, Matsumoto R, Shimamura K, Miyagawa S. The usefulness of chest drain and epicardial pacing wire culture for diagnosing mediastinitis after open-heart surgery. Surg Today 2024; 54:73-79. [PMID: 37490071 DOI: 10.1007/s00595-023-02720-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 04/18/2023] [Indexed: 07/26/2023]
Abstract
PURPOSE Culture of extracted drains or epicardial pacing wires is an easy and noninvasive method for detecting mediastinitis after open-heart surgery, although studies on its sensitivity and specificity are limited. We, therefore, investigated the usefulness of this approach for diagnosing mediastinitis. METHODS We retrospectively studied the culture results of drains and epicardial pacing wires extracted from 3308 patients. Prediction models of mediastinitis with and without culture results added to clinical risk factors identified by a logistic regression analysis were compared. RESULTS The incidence of mediastinitis requiring surgery was 1.89% (n = 64). Staphylococcus was the causative bacterium in 64.0% of cases. The sensitivity, specificity, and positive and negative predictive values of positive culture results were 50.8%, 91.8%, 10.7%, and 99.0%, respectively. Methicillin-resistant Staphylococcus aureus had the highest positive predictive value (61.5%). A multivariate analysis identified preoperative hemodialysis (OR 5.40 [2.54-11.5], p < 0.01), long operative duration (p < 0.01), postoperative hemodialysis (OR 2.25 [1.01-4.98], p < 0.05), and positive culture result (OR 10.2 [5.88-17.7], p < 0.01) as independent risk factors. The addition of culture results to pre- and postoperative hemodialysis and a lengthy operative time improved the prediction of mediastinitis. CONCLUSIONS A culture survey using extracted drains and epicardial pacing wires may provide useful information for diagnosing mediastinitis.
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Affiliation(s)
- Ai Kawamura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-15 Yamadaoka, Suita-City, Osaka, 565-0871, Japan
| | - Daisuke Yoshioka
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-15 Yamadaoka, Suita-City, Osaka, 565-0871, Japan.
| | - Masashi Kawamura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-15 Yamadaoka, Suita-City, Osaka, 565-0871, Japan
| | - Takuji Kawamura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-15 Yamadaoka, Suita-City, Osaka, 565-0871, Japan
| | - Takayuki Shijo
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-15 Yamadaoka, Suita-City, Osaka, 565-0871, Japan
| | - Koichi Maeda
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-15 Yamadaoka, Suita-City, Osaka, 565-0871, Japan
| | - Ryohei Matsuura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-15 Yamadaoka, Suita-City, Osaka, 565-0871, Japan
| | - Kizuku Yamashita
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-15 Yamadaoka, Suita-City, Osaka, 565-0871, Japan
| | - Yuske Misumi
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-15 Yamadaoka, Suita-City, Osaka, 565-0871, Japan
| | - Ryota Matsumoto
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-15 Yamadaoka, Suita-City, Osaka, 565-0871, Japan
| | - Kazuo Shimamura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-15 Yamadaoka, Suita-City, Osaka, 565-0871, Japan
| | - Shigeru Miyagawa
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-15 Yamadaoka, Suita-City, Osaka, 565-0871, Japan
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15
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Kawamura T, Sekiguchi M, Takamaru H, Mizuguchi Y, Horiguchi G, Toyoizumi H, Kato M, Kobayashi K, Sada M, Oda Y, Yokoyama A, Utsumi T, Tsuji Y, Ohki D, Takeuchi Y, Shichijo S, Ikematsu H, Matsuda K, Teramukai S, Kobayashi N, Matsuda T, Saito Y, Tanaka K. Endoscopist-related factors affecting adenoma detection during colonoscopy: Data from the J-SCOUT study. Dig Endosc 2024; 36:51-58. [PMID: 37953649 DOI: 10.1111/den.14721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 11/07/2023] [Indexed: 11/14/2023]
Abstract
OBJECTIVES Colonoscopy withdrawal times are associated with the adenoma detection rate (ADR). However, the relationship between ADR and cecal insertion time has been inadequately characterized. We aimed to evaluate endoscopist-related factors involved in the ADR, including the average individual colonoscopy insertion and withdrawal times. METHODS This observational study used a colonoscopy database with pathology data from routine clinical practice in Japanese institutions. The odds ratios (OR) of endoscopist-related factors related to ADRs were examined using a generalized linear mixed model. RESULTS Of the 186,293 colonoscopies performed during the study period, 47,705 colonoscopies by 189 endoscopists in four hospitals were analyzed for ADR. The overall ADR was 38.3% (95% confidence interval [CI] 37.8, 38.7). Compared to endoscopists with mean cecal insertion times of <5 min, the OR of ADR for those with mean cecal insertion times of 5-9, 10-14, and ≥15 min were 0.84 (95% CI 0.71, 0.99), 0.68 (95% CI 0.52, 0.90), and 0.45 (95% CI 0.25, 0.78), respectively. Compared to endoscopists with mean withdrawal times of <6 min, the OR of ADR for those with mean withdrawal times of 6-9, 10-14, and ≥15 min were 1.38 (95% CI 1.03, 1.85), 1.48 (95% CI 1.09, 2.02), and 1.68 (95% CI 1.04, 2.61), respectively. There were no significant differences in ADRs by endoscopist specialty, gender, or the total number of examinations performed. CONCLUSION Individual mean colonoscopy insertion time was associated with ADR and might be considered as a colonoscopy quality indicator as well as withdrawal time.
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Affiliation(s)
- Takuji Kawamura
- Department of Gastroenterology, Kyoto Second Red Cross Hospital, Kyoto, Japan
| | - Masau Sekiguchi
- Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan
- Cancer Screening Center, National Cancer Center Hospital, Tokyo, Japan
| | | | | | - Go Horiguchi
- Department of Biostatistics, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hirobumi Toyoizumi
- Department of Endoscopy, The Jikei University Katsushika Medical Center, Tokyo, Japan
| | - Masayuki Kato
- Department of Endoscopy, The Jikei University Katsushika Medical Center, Tokyo, Japan
| | | | - Miwa Sada
- Department of Gastroenterology, Kitasato University, Kanagawa, Japan
| | - Yasushi Oda
- Oda GI Endoscopy and Gastroenterology Clinic, Kumamoto, Japan
| | - Akira Yokoyama
- Department of Therapeutic Oncology, Kyoto University, Kyoto, Japan
| | - Takahiro Utsumi
- Department of Gastroenterology and Hepatology, Kyoto University, Kyoto, Japan
| | - Yosuke Tsuji
- Department of Next-Generation Endoscopic Computer Vision, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Daisuke Ohki
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yoji Takeuchi
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, Gunma, Japan
- Department of Gastrointestinal Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - Satoki Shichijo
- Department of Gastrointestinal Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - Hiroaki Ikematsu
- Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Chiba, Japan
| | - Koji Matsuda
- Department of Gastroenterology, Shizuoka Medical Center, Shizuoka, Japan
| | - Satoshi Teramukai
- Department of Biostatistics, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Nozomu Kobayashi
- Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan
- Cancer Screening Center, National Cancer Center Hospital, Tokyo, Japan
| | - Takahisa Matsuda
- Division of Gastroenterology and Hepatology, Toho University Omori Medical Center, Tokyo, Japan
| | - Yutaka Saito
- Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan
| | - Kiyohito Tanaka
- Department of Gastroenterology, Kyoto Second Red Cross Hospital, Kyoto, Japan
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Imaoka S, Samura T, Yoshioka D, Kawamura M, Kawamura T, Toda K, Miyagawa S. Clinical Outcomes of Left Ventricular Assist Device Pump Infection. ASAIO J 2023; 69:1056-1064. [PMID: 37549664 DOI: 10.1097/mat.0000000000002031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/09/2023] Open
Abstract
Few studies have focused on the clinical outcomes and risk factors of left ventricular assist device (LVAD) pump infection, and no standard treatment for LVAD pump infection has been established. Therefore, we used a therapeutic flowchart to manage LVAD pump infections. We retrospectively evaluated 220 patients who underwent continuous-flow LVAD implantation between January 2005 and March 2021 at Osaka University, Japan. First, we performed wound debridement, negative-pressure wound therapy, antibiotic treatment, and omental flap transposition. Subsequently, we administered conservative treatment, scheduled implantable LVAD exchange, or emergent removal of the implantable LVAD and exchange for extracorporeal LVAD or percutaneous LVAD (IMPELLA). Pump infections occurred in 32 patients. The survival rates of patients with pump infections during LVAD support were 93%, 74%, and 61% at 180 days, 1 year, and 2 years after LVAD pump infection, respectively. Fifteen patients underwent successful heart transplantation. Bridge-to-bridge surgery, preoperative use of venoarterial extracorporeal membrane oxygenation or percutaneous LVAD, high lactate dehydrogenase levels, and driveline infection were significantly associated with pump infection. Our study reveals that poor preoperative condition and driveline infection were significant risk factors for LVAD pump infection.
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Affiliation(s)
- Shusuke Imaoka
- From the Departments of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka Fu, Japan
| | - Takaaki Samura
- From the Departments of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka Fu, Japan
| | - Daisuke Yoshioka
- From the Departments of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka Fu, Japan
| | - Masashi Kawamura
- From the Departments of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka Fu, Japan
| | - Takuji Kawamura
- From the Departments of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka Fu, Japan
| | - Koichi Toda
- Department of thoracic and cardiovascular surgery, Dokkyo Medical University Saitama Medical center, Saitama Ken, Japan
| | - Shigeru Miyagawa
- From the Departments of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka Fu, Japan
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17
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Ito S, Hotta K, Sekiguchi M, Takeuchi Y, Oka S, Yamamoto H, Shinmura K, Harada K, Uraoka T, Hisabe T, Sano Y, Kondo H, Horimatsu T, Kikuchi H, Kawamura T, Nagata S, Yamamoto K, Tajika M, Tsuji S, Kusaka T, Okuyama Y, Yoshida N, Moriyama T, Hasebe A, So S, Saito Y, Nakahira H, Ishikawa H, Matsuda T. Short-term outcomes of endoscopic resection for colorectal neuroendocrine tumors: Japanese multicenter prospective C-NET STUDY. Dig Endosc 2023. [PMID: 37986226 DOI: 10.1111/den.14728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Accepted: 11/19/2023] [Indexed: 11/22/2023]
Abstract
OBJECTIVES The incidence of colorectal neuroendocrine tumors (NETs) has increased with colorectal cancer screening programs and increased colonoscopies. The management of colorectal NETs has recently shifted from radical surgery to endoscopic resection. We aimed to evaluate the short-term outcomes of various methods of endoscopic resection for colorectal NETs. METHODS Among those registered in the C-NET STUDY, patients with colorectal NETs who underwent endoscopic treatment as the initial therapy were included. Short-term outcomes, such as the en bloc resection rate and R0 resection (en bloc resection with tumor-free margin) rate, were analyzed based on treatment modalities. RESULTS A total of 472 patients with 477 colorectal NETs received endoscopic treatment. Of these, 418 patients with 421 lesions who met the eligibility criteria were included in the analysis. The median age of the patients was 55 years, and 56.9% of them were men. The lower rectum was the most commonly affected site (88.6%), and lesions <10 mm accounted for 87% of the cases. Endoscopic submucosal resection with a ligation device (ESMR-L, 56.5%) was the most common method, followed by endoscopic submucosal dissection (ESD, 31.4%) and endoscopic mucosal resection using a cap (EMR-C, 8.5%). R0 resection rates <10 mm were 95.5%, 94.8%, and 94.3% for ESMR-L, ESD, and EMR-C, respectively. All 16 (3.8%) patients who developed treatment-related complications could be treated conservatively. Overall, 23 (5.5%) patients had incomplete resection without independent clinicopathological risk factors. CONCLUSION ESMR-L, ESD, and EMR-C were equally effective and safe for colorectal NETs with a diameter <10 mm.
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Affiliation(s)
- Sayo Ito
- Division of Endoscopy, Shizuoka Cancer Center, Shizuoka, Japan
| | - Kinichi Hotta
- Division of Endoscopy, Shizuoka Cancer Center, Shizuoka, Japan
| | - Masau Sekiguchi
- Endoscopy Division, Cancer Screening Center, National Cancer Center Hospital, Tokyo, Japan
| | - Yoji Takeuchi
- Department of Gastrointestinal Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - Shiro Oka
- Department of Gastroenterology, Hiroshima University Hospital, Hiroshima, Japan
| | - Hironori Yamamoto
- Division of Gastroenterology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Kensuke Shinmura
- Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Chiba, Japan
| | - Keita Harada
- Department of Gastroenterology and Hepatology, Okayama University Hospital, Okayama, Japan
| | - Toshio Uraoka
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Takashi Hisabe
- Department of Gastroenterology, Fukuoka University Chikushi Hospital, Fukuoka, Japan
| | - Yasushi Sano
- Gastrointestinal Center, Sano Hospital, Hyogo, Japan
| | - Hitoshi Kondo
- Department of Gastroenterology, Tonan Hospital, Hokkaido, Japan
| | - Takahiro Horimatsu
- Institute for Advancement of Clinical and Translational Science, Kyoto University Hospital, Kyoto, Japan
| | - Hidezumi Kikuchi
- Department of Gastroenterology and Hepatology, Hirosaki University Graduate School of Medicine, Aomori, Japan
| | - Takuji Kawamura
- Department of Gastroenterology, Kyoto Second Red Cross Hospital, Kyoto, Japan
| | - Shinji Nagata
- Department of Gastroenterology, Hiroshima City North Medical Center Asa Citizens Hospital, Hiroshima, Japan
| | - Katsumi Yamamoto
- Department of Gastroenterology, JCHO Osaka Hospital, Osaka, Japan
| | - Masahiro Tajika
- Department of Endoscopy, Aichi Cancer Center Hospital, Aichi, Japan
| | - Shigetsugu Tsuji
- Department of Gastroenterology, Ishikawa Prefectural Central Hospital, Ishikawa, Japan
| | - Toshihiro Kusaka
- Department of Gastroenterology and Hepatology, Kyoto Katsura Hospital, Kyoto, Japan
| | - Yusuke Okuyama
- Department of Gastroenterology, Kyoto First Red Cross Hospital, Kyoto, Japan
| | - Naohisa Yoshida
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tomohiko Moriyama
- International Medical Department, Kyushu University Hospital, Fukuoka, Japan
| | - Aki Hasebe
- Department of Gastroenterology, Shikoku Cancer Center, Ehime, Japan
| | - Suketo So
- Department of Gastroenterology, Tobata Kyoritsu Hospital, Fukuoka, Japan
| | - Yutaka Saito
- Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan
| | - Hiroko Nakahira
- Department of Gastrointestinal Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - Hideki Ishikawa
- Department of Molecular-Targeting Prevention, Graduate School of Medicine Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Takahisa Matsuda
- Division of Gastroenterology and Hepatology, Toho University Omori Medical Center, Tokyo, Japan
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18
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Shinomiya R, Inoue N, Kawamura T, Uno K. Acute pancreatitis with colon cutoff sign. Clin Case Rep 2023; 11:e8086. [PMID: 37867544 PMCID: PMC10587651 DOI: 10.1002/ccr3.8086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 08/14/2023] [Accepted: 10/09/2023] [Indexed: 10/24/2023] Open
Abstract
Key Clinical Message Acute pancreatitis can present with a colon cutoff sign. The colon cutoff sign can also occur in gastric cancer, splenic artery bleeding, and ruptured abdominal aortic aneurysm. A CT scout image can also be an important laboratory finding for diagnosing a disease. Abstract A 22-year-old woman visited our hospital with a complaint of epigastric pain. An abdominal contrast-enhanced computed tomography (CT) scan revealed that intestinal gas was interrupted at the splenic flexure on the CT scout image (colon cutoff sign). Scan images showed a poorly contrasted area in the pancreatic tail. Based on these results, the patient was diagnosed with acute pancreatitis. The colon cutoff sign is an image showing the spread of inflammation to the colon. A CT scout image can also be an important laboratory finding for diagnosing a disease.
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Affiliation(s)
- Ryo Shinomiya
- Department of GastroenterologyKyoto Second Red Cross HospitalKyotoJapan
| | - Naonori Inoue
- Department of GastroenterologyKyoto Second Red Cross HospitalKyotoJapan
| | - Takuji Kawamura
- Department of GastroenterologyKyoto Second Red Cross HospitalKyotoJapan
| | - Koji Uno
- Department of GastroenterologyKyoto Second Red Cross HospitalKyotoJapan
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19
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Jokai M, Torma F, McGreevy KM, Koltai E, Bori Z, Babszki G, Bakonyi P, Gombos Z, Gyorgy B, Aczel D, Toth L, Osvath P, Fridvalszky M, Teglas T, Posa A, Kujach S, Olek R, Kawamura T, Seki Y, Suzuki K, Tanisawa K, Goto S, Kerepesi C, Boldogh I, Ba X, Davies KJA, Horvath S, Radak Z. DNA methylation clock DNAmFitAge shows regular exercise is associated with slower aging and systemic adaptation. GeroScience 2023; 45:2805-2817. [PMID: 37209203 PMCID: PMC10643800 DOI: 10.1007/s11357-023-00826-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 05/10/2023] [Indexed: 05/22/2023] Open
Abstract
DNAmPhenoAge, DNAmGrimAge, and the newly developed DNAmFitAge are DNA methylation (DNAm)-based biomarkers that reflect the individual aging process. Here, we examine the relationship between physical fitness and DNAm-based biomarkers in adults aged 33-88 with a wide range of physical fitness (including athletes with long-term training history). Higher levels of VO2max (ρ = 0.2, p = 6.4E - 4, r = 0.19, p = 1.2E - 3), Jumpmax (p = 0.11, p = 5.5E - 2, r = 0.13, p = 2.8E - 2), Gripmax (ρ = 0.17, p = 3.5E - 3, r = 0.16, p = 5.6E - 3), and HDL levels (ρ = 0.18, p = 1.95E - 3, r = 0.19, p = 1.1E - 3) are associated with better verbal short-term memory. In addition, verbal short-term memory is associated with decelerated aging assessed with the new DNAm biomarker FitAgeAcceleration (ρ: - 0.18, p = 0.0017). DNAmFitAge can distinguish high-fitness individuals from low/medium-fitness individuals better than existing DNAm biomarkers and estimates a younger biological age in the high-fit males and females (1.5 and 2.0 years younger, respectively). Our research shows that regular physical exercise contributes to observable physiological and methylation differences which are beneficial to the aging process. DNAmFitAge has now emerged as a new biological marker of quality of life.
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Affiliation(s)
- Matyas Jokai
- Research Institute of Sport Science, Hungarian University of Sport Science, Budapest, Hungary
| | - Ferenc Torma
- Research Institute of Sport Science, Hungarian University of Sport Science, Budapest, Hungary
- Sports Neuroscience Division, Advanced Research Initiative for Human High Performance (ARIHHP), Faculty of Health and Sport Sciences, University of Tsukuba, Ibaraki, Tsukuba, 305-8574, Japan
- Laboratory of Exercise Biochemistry and Neuroendocrinology, Faculty of Health and Sport Sciences, University of Tsukuba, Ibaraki, Tsukuba, 305-8574, Japan
| | - Kristen M McGreevy
- Department of Biostatistics, Fielding School of Public Health, University of California Los Angeles, Los Angeles, CA, 90095, USA
| | - Erika Koltai
- Research Institute of Sport Science, Hungarian University of Sport Science, Budapest, Hungary
| | - Zoltan Bori
- Research Institute of Sport Science, Hungarian University of Sport Science, Budapest, Hungary
| | - Gergely Babszki
- Research Institute of Sport Science, Hungarian University of Sport Science, Budapest, Hungary
| | - Peter Bakonyi
- Research Institute of Sport Science, Hungarian University of Sport Science, Budapest, Hungary
| | - Zoltan Gombos
- Research Institute of Sport Science, Hungarian University of Sport Science, Budapest, Hungary
| | - Bernadett Gyorgy
- Research Institute of Sport Science, Hungarian University of Sport Science, Budapest, Hungary
| | - Dora Aczel
- Research Institute of Sport Science, Hungarian University of Sport Science, Budapest, Hungary
| | - Laszlo Toth
- Research Institute of Sport Science, Hungarian University of Sport Science, Budapest, Hungary
| | - Peter Osvath
- Research Institute of Sport Science, Hungarian University of Sport Science, Budapest, Hungary
| | - Marcell Fridvalszky
- Research Institute of Sport Science, Hungarian University of Sport Science, Budapest, Hungary
| | - Timea Teglas
- Research Institute of Sport Science, Hungarian University of Sport Science, Budapest, Hungary
| | - Aniko Posa
- Interdisciplinary Excellence Center, Department of Physiology, Anatomy and Neuroscience, Faculty of Science and Informatics, University of Szeged, 6700, Szeged, Hungary
| | - Sylwester Kujach
- Department of Physiology, Faculty of Physical Education, Gdansk University of Physical Education and Sport, Gdańsk, Poland
| | - Robert Olek
- Department of Athletics, Strength and Conditioning, Poznań University of Physical Education, Poznań, Poland
| | - Takuji Kawamura
- Faculty of Sport Sciences, Waseda University, Tokorozawa, 2-579-15, Japan
| | - Yasuhiro Seki
- Faculty of Sport Sciences, Waseda University, Tokorozawa, 2-579-15, Japan
| | - Katsuhiko Suzuki
- Faculty of Sport Sciences, Waseda University, Tokorozawa, 2-579-15, Japan
| | - Kumpei Tanisawa
- Faculty of Sport Sciences, Waseda University, Tokorozawa, 2-579-15, Japan
| | - Sataro Goto
- Research Institute of Sport Science, Hungarian University of Sport Science, Budapest, Hungary
| | - Csaba Kerepesi
- Institute for Computer Science and Control (SZTAKI), Eötvös Loránd Research Network, Budapest, Hungary
| | - Istvan Boldogh
- Department of Microbiology and Immunology, University of Texas Medical Branch at Galveston, Galveston, TX, 77555, USA
| | - Xueqing Ba
- Key Laboratory of Molecular Epigenetics of Ministry of Education, Northeast Normal University, Changchun, Jilin, China
| | - Kelvin J A Davies
- Ethel Percy Andrus Gerontology Centre of the Leonard Davis School of Gerontology; Division of Molecular & Computational Biology, Department of Biological Sciences, of the Dornsife College of Letters, Arts, and Sciences; and Department of Biochemistry & Molecular Medicine of the USC Keck School of Medicine, University of Southern California, Los Angeles, CA, 90089-0191, USA
| | - Steve Horvath
- Department of Human Genetics, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, 90095, USA
- Altos Labs, Cambridge Institute of Science, Cambridge, UK
| | - Zsolt Radak
- Research Institute of Sport Science, Hungarian University of Sport Science, Budapest, Hungary.
- Faculty of Sport Sciences, Waseda University, Tokorozawa, 2-579-15, Japan.
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20
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Ito Y, Kawamura T, Chimura M, Miyagawa S. Mitochondrial function and coronary flow reserve improvement after autologous myoblast patch transplantation for ischaemic cardiomyopathy: a case report. Eur Heart J Case Rep 2023; 7:ytad470. [PMID: 37841044 PMCID: PMC10572091 DOI: 10.1093/ehjcr/ytad470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 08/30/2023] [Accepted: 09/19/2023] [Indexed: 10/17/2023]
Abstract
Background Autologous myoblast patch (AMP) transplantation has resulted in good clinical outcomes for end-stage ischaemic cardiomyopathy, but the mechanisms behind them are unclear. Herein, we report the relationship between mitochondrial function and coronary flow reserve (CFR) before and after AMP transplantation. Case summary The patient was a 73-year-old man who underwent coronary artery bypass grafting (CABG). At that time, the left ventricular ejection fraction (LVEF) was 53%, but it declined to 25% after 6 years. He was diagnosed with ischaemic cardiomyopathy (ICM). Coronary flow reserve in NH3-positron emission tomography (NH3-PET) was impaired to 1.69. In Tc-99m MIBI scintigraphy, the washout rate (WR) was 17%, suggestive of impaired mitochondrial function. He was not a candidate for heart transplantation, and we performed AMP transplantation 6 years after CABG. One year after AMP transplantation, LVEF, CFR, and Tc-99m MIBI WR improved to 36%, 2.07, and 7%, respectively. The Tc-99m MIBI WR improved especially in the anterolateral region, and the CFR increased in almost all segments. Discussion In this case, AMP transplantation for ICM improved cardiac function, CFR, and mitochondrial function. The mitochondrial transfer from the transplanted myoblasts to the damaged myocardium may have contributed to the mitochondrial function improvement. This probably induced myocardial energy metabolism recovery and decreased oxygen demand. AMP transplantation also has the potential to improve microvascular dysfunction, due to angiogenesis induction. These effects can lead to improved prognoses of ICM after AMP transplantation, highlighting its potential to cure refractory heart failure.
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Affiliation(s)
- Yoshito Ito
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2-E1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Takuji Kawamura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2-E1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Misato Chimura
- Department of Cardiology, Osaka University Graduate School of Medicine, 2-2-E1, Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Shigeru Miyagawa
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2-E1, Yamadaoka, Suita, Osaka 565-0871, Japan
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21
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Kawamura T, Ito Y, Ito E, Takeda M, Mikami T, Taguchi T, Mochizuki-Oda N, Sasai M, Shimamoto T, Nitta Y, Yoshioka D, Kawamura M, Kawamura A, Misumi Y, Sakata Y, Sawa Y, Miyagawa S. Safety confirmation of induced pluripotent stem cell-derived cardiomyocyte patch transplantation for ischemic cardiomyopathy: first three case reports. Front Cardiovasc Med 2023; 10:1182209. [PMID: 37781295 PMCID: PMC10540447 DOI: 10.3389/fcvm.2023.1182209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 08/29/2023] [Indexed: 10/03/2023] Open
Abstract
Introduction With the expected increase in patients with heart failure and ischemic 15 cardiomyopathy, the development of myocardial regenerative medicine using cell transplantation as a novel treatment method is progressing. This first-in-human clinical trial aimed to confirm the safety of cardiomyocyte patch transplantation derived from allogeneic induced pluripotent stem (iPS) cells based on the results of several preclinical studies. Study design The inclusion criteria were left ventricular ejection fraction of 35% or less; heart failure symptoms of New York Heart Association class III or higher despite existing therapies such as revascularization; and a 1-year observation period that included a 3-month immunosuppressive drug administration period after transplantation of iPS cell-derived cardiomyocyte patches to evaluate adverse events, cardiac function, myocardial blood flow, heart failure symptoms, and immune response. Results In the first three cases of this trial, no transplanted cell-related adverse events were observed during the 1-year observation period, and improvement in heart failure symptoms was observed. In addition, improvements in left ventricular contractility and myocardial blood flow were observed in two of the three patients. Regarding immune response, an increase in transplant cell-specific antibody titer was observed in all three patients after immunosuppressive drug administration. In one patient with poor improvement in cardiac function and myocardial blood flow, an increase in antibody titer against HLA-DQ was observed even before cell transplantation. Conclusions Our case findings demonstrate that the transplantation of iPS cell-derived cardiomyocyte patches for ischemic cardiomyopathy can be safely performed; however, further investigation of the therapeutic effect and its relationship with an immune response is needed by accumulating the number of patients through continued clinical trials.
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Affiliation(s)
- Takuji Kawamura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Yoshito Ito
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Emiko Ito
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Maki Takeda
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Tsubasa Mikami
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Takura Taguchi
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Noriko Mochizuki-Oda
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Masao Sasai
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Tomomi Shimamoto
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Yukako Nitta
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Daisuke Yoshioka
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Masashi Kawamura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Ai Kawamura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Yusuke Misumi
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Yasushi Sakata
- Department of Cardiology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Yoshiki Sawa
- Devision of Health Sciences, Osaka University Graduate School of Medicine, Suita, Japan
| | - Shigeru Miyagawa
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
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22
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Takabayashi K, Kobayashi T, Matsuoka K, Levesque BG, Kawamura T, Tanaka K, Kadota T, Bise R, Uchida S, Kanai T, Ogata H. Artificial intelligence quantifying endoscopic severity of ulcerative colitis in gradation scale. Dig Endosc 2023. [PMID: 37690125 DOI: 10.1111/den.14677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 09/05/2023] [Indexed: 09/12/2023]
Abstract
OBJECTIVES Existing endoscopic scores for ulcerative colitis (UC) objectively categorize disease severity based on the presence or absence of endoscopic findings; therefore, it may not reflect the range of clinical severity within each category. However, inflammatory bowel disease (IBD) expert endoscopists categorize the severity and diagnose the overall impression of the degree of inflammation. This study aimed to develop an artificial intelligence (AI) system that can accurately represent the assessment of the endoscopic severity of UC by IBD expert endoscopists. METHODS A ranking-convolutional neural network (ranking-CNN) was trained using comparative information on the UC severity of 13,826 pairs of endoscopic images created by IBD expert endoscopists. Using the trained ranking-CNN, the UC Endoscopic Gradation Scale (UCEGS) was used to express severity. Correlation coefficients were calculated to ensure that there were no inconsistencies in assessments of severity made using UCEGS diagnosed by the AI and the Mayo Endoscopic Subscore, and the correlation coefficients of the mean for test images assessed using UCEGS by four IBD expert endoscopists and the AI. RESULTS Spearman's correlation coefficient between the UCEGS diagnosed by AI and Mayo Endoscopic Subscore was approximately 0.89. The correlation coefficients between IBD expert endoscopists and the AI of the evaluation results were all higher than 0.95 (P < 0.01). CONCLUSIONS The AI developed here can diagnose UC severity endoscopically similar to IBD expert endoscopists.
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Affiliation(s)
- Kaoru Takabayashi
- Center for Diagnostic and Therapeutic Endoscopy, Keio University School of Medicine, Tokyo, Japan
| | - Taku Kobayashi
- Center for Advanced IBD Research and Treatment, Kitasato University Kitasato Institute Hospital, Tokyo, Japan
| | - Katsuyoshi Matsuoka
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Toho University Sakura Medical Center, Chiba, Japan
| | - Barrett G Levesque
- Division of Gastroenterology, Los Angeles County/University of Southern California Medical Center, Los Angeles, USA
| | - Takuji Kawamura
- Department of Gastroenterology, Kyoto Second Red Cross Hospital, Kyoto, Japan
| | - Kiyohito Tanaka
- Department of Gastroenterology, Kyoto Second Red Cross Hospital, Kyoto, Japan
| | - Takeaki Kadota
- Department of Advanced Information Technology, Kyushu University, Fukuoka, Japan
| | - Ryoma Bise
- Research Center for Medical Bigdata, National Institute of Informatics, Tokyo, Japan
- Department of Advanced Information Technology, Kyushu University, Fukuoka, Japan
| | - Seiichi Uchida
- Research Center for Medical Bigdata, National Institute of Informatics, Tokyo, Japan
- Department of Advanced Information Technology, Kyushu University, Fukuoka, Japan
| | - Takanori Kanai
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Haruhiko Ogata
- Center for Diagnostic and Therapeutic Endoscopy, Keio University School of Medicine, Tokyo, Japan
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23
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Nakae M, Kainuma S, Toda K, Yoshikawa Y, Hata H, Yoshioka D, Kawamura T, Kawamura A, Kashiyama N, Ueno T, Kuratani T, Kondoh H, Hiraoka A, Sakaguchi T, Yoshitaka H, Shirakawa Y, Takahashi T, Sakaki M, Masai T, Komukai S, Kitamura T, Hirayama A, Shimomura Y, Miyagawa S. Impact of complete revascularization in coronary artery bypass grafting for ischemic cardiomyopathy. JTCVS Open 2023; 15:211-219. [PMID: 37808015 PMCID: PMC10556818 DOI: 10.1016/j.xjon.2023.04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 03/24/2023] [Accepted: 04/06/2023] [Indexed: 10/10/2023]
Abstract
Objective In patients with ischemic cardiomyopathy, coronary artery bypass grafting ensures better survival than medical therapy. However, the long-term clinical impact of complete revascularization remains unclear. This observational study aimed to evaluate the effects of complete revascularization on long-term survival and left ventricular functional recovery in patients with ischemic cardiomyopathy undergoing coronary artery bypass grafting. Methods We retrospectively reviewed outcomes of 498 patients with ischemic cardiomyopathy who underwent complete (n = 386) or incomplete (n = 112) myocardial revascularization between 1993 and 2015. The baseline characteristics were adjusted using inverse probability of treatment weighting to reduce the impact of treatment bias and potential confounding. The mean follow-up duration was 77.2 ± 42.8 months in survivors. Results The overall 5-year survival rate (complete revascularization, 72.5% vs incomplete revascularization, 57.9%, P = .03) and freedom from all-cause death and/or readmission due to heart failure (54.5% vs 40.1%, P = .007) were significantly greater in patients with complete revascularization than those with incomplete revascularization. After adjustments using inverse probability of treatment weighting, the complete revascularization group demonstrated a lower risk of all-cause death (hazard ratio, 0.61; 95% confidence interval, 0.43-0.86; P = .005) and composite adverse events (hazard ratio, 0.59; 95% confidence interval, 0.44-0.79; P < .001) and a greater improvement in the left ventricular ejection fraction 1-year postoperatively (absolute change: 11.0 ± 11.9% vs 8.3 ± 11.4%, interaction effect P = .05) than the incomplete revascularization group. Conclusions In patients with ischemic cardiomyopathy undergoing coronary artery bypass grafting, complete revascularization was associated with better long-term outcomes and greater left ventricular functional recovery and should be encouraged whenever possible.
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Affiliation(s)
- Masaro Nakae
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Satoshi Kainuma
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Koichi Toda
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Yasushi Yoshikawa
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Hiroki Hata
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Daisuke Yoshioka
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Takuji Kawamura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Ai Kawamura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Noriyuki Kashiyama
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Takayoshi Ueno
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Toru Kuratani
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Haruhiko Kondoh
- Japan Organization of Occupational Health and Safety Osaka Rosai Hospital, Sakai, Osaka, Japan
| | - Arudo Hiraoka
- Sakakibara Heart Institute of Okayama, Okayama, Japan
| | | | | | | | | | - Masayuki Sakaki
- National Hospital Organization Osaka National Hospital, Osaka, Osaka, Japan
| | | | - Sho Komukai
- Division of Biomedical Statistics, Department of Integrated Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Tetsuhisa Kitamura
- Division of Environmental Medicine and Population Sciences, Department of Social and Environmental Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Atsushi Hirayama
- Public Health, Department of Social and Environmental Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Yoshimitsu Shimomura
- Division of Environmental Medicine and Population Sciences, Department of Social and Environmental Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Shigeru Miyagawa
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Osaka Cardiovascular Surgery Research (OSCAR) Group
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
- Japan Organization of Occupational Health and Safety Osaka Rosai Hospital, Sakai, Osaka, Japan
- Sakakibara Heart Institute of Okayama, Okayama, Japan
- Osaka Police Hospital, Osaka, Osaka, Japan
- National Hospital Organization Osaka National Hospital, Osaka, Osaka, Japan
- Sakurabashi Watanabe Hospital, Osaka, Osaka, Japan
- Division of Biomedical Statistics, Department of Integrated Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
- Division of Environmental Medicine and Population Sciences, Department of Social and Environmental Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
- Public Health, Department of Social and Environmental Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
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24
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Hirose M, Ishida H, Kawamura T, Narita J, Ishii R, Watanabe T, Taira M, Ueno T, Ozono K, Miyagawa S. Trans-subclavian approach for Impella CP implantation using the chimney graft in a pediatric patient with fulminant myocarditis during extracorporeal support. J Artif Organs 2023; 26:242-245. [PMID: 36224293 DOI: 10.1007/s10047-022-01369-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Accepted: 09/28/2022] [Indexed: 10/17/2022]
Abstract
Impella is a device effective for the treatment of cardiogenic shock. However, among small children, its application has limitations due to left ventricle size and vasculature and the turning diameter of the aortic arch. Herein, we report an 11-year-old girl with fulminant myocarditis who was successfully managed with Impella CP implantation via the right subclavian artery using a polyethylene terephthalate chimney graft. Compared with insertion via the femoral artery, this method has several advantages. That is, it can address limitations in aortic arch diameter and facilitate equable fixation of the Impella device in small pediatric patients.
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Affiliation(s)
- Masaki Hirose
- Department of Pediatrics, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan.
| | - Hidekazu Ishida
- Department of Pediatrics, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan.
| | - Takuji Kawamura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Jun Narita
- Department of Pediatrics, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Ryo Ishii
- Department of Pediatrics, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Takuji Watanabe
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Masaki Taira
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Takayoshi Ueno
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Keiichi Ozono
- Department of Pediatrics, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Shigeru Miyagawa
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
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25
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Ito E, Kawamura A, Kawamura T, Takeda M, Harada A, Mochizuki-Oda N, Sawa Y, Miyagawa S. Establishment of a protocol to administer immunosuppressive drugs for iPS cell-derived cardiomyocyte patch transplantation in a rat myocardial infarction model. Sci Rep 2023; 13:10530. [PMID: 37385993 PMCID: PMC10310705 DOI: 10.1038/s41598-023-37235-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 06/18/2023] [Indexed: 07/01/2023] Open
Abstract
Transplantation of human allogeneic induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) is a new, promising treatment for severe heart failure. However, immunorejection is a significant concern in allogeneic hiPSC-CM transplantation, requiring the administration of several immunosuppressive agents. An appropriate protocol for the administration of immunosuppressants may substantially affect the efficacy of hiPSC-CM transplantation in case of heart failure owing to allogeneic transplantation. In this study, we investigated the effect of immunosuppressant administration duration on the efficacy and safety of allogenic hiPSC-CM patch transplantation. We used a rat model of myocardial infarction to evaluate cardiac function using echocardiography six months after the transplantation of hiPSC-CM patches with immunosuppressant administration for either two or four months and compared them to control rats (sham operation, no immunosuppressant administration). Histological analysis performed at 6 months after hiPSC-CM patch transplantation revealed significant improvement in cardiac function in immunosuppressant-treated rats compared with those in the control group. Moreover, fibrosis and cardiomyocyte size was significantly reduced and the number of structurally mature blood vessels was significantly increased in the immunosuppressant-treated rats compared to control rats. However, there were no significant differences between the two immunosuppressant-treated groups. Our results show that prolonged administration of immunosuppressive agents did not enhance the effectiveness of hiPSC-CM patch transplantation, and therefore, highlight the importance of an appropriate immunological regimen for the clinical application of such transplantation.
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Affiliation(s)
- Emiko Ito
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Ai Kawamura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Takuji Kawamura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Maki Takeda
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Akima Harada
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Noriko Mochizuki-Oda
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Yoshiki Sawa
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Shigeru Miyagawa
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan.
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26
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Kawamura T, Toda K, Yoshioka D, Kawamura M, Saito T, Kawamura A, Nakamoto K, Sakata Y, Miyagawa S. Less Invasive Left Ventricular Unloading With Impella May Improve the Clinical Outcomes of Fulminant Myocarditis. ASAIO J 2023; 69:561-568. [PMID: 36848874 DOI: 10.1097/mat.0000000000001907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023] Open
Abstract
Fulminant myocarditis (FM) requiring temporary mechanical circulatory support (t-MCS) has a high mortality rate. Peripheral veno-arterial extracorporeal membrane oxygenation (VA-ECMO) and intra-aortic balloon pump (IABP) are sometimes insufficient to induce cardiac recovery. For patients with FM refractory to VA-ECMO with IABP, we have applied a biventricular assist device (BIVAD) or Impella to unload the left ventricle and to fully support the systemic circulation. In the last 10 years, 37 refractory FM patients histologically diagnosed with myocarditis and who did not recover with VA-ECMO were treated with BIVAD (n = 19) or Impella (n = 18). No significant difference was found between the Impella and BIVAD groups in preoperative findings other than serum creatinine level. Seventeen of 18 patients in the Impella group were successfully weaned from t-MCS in 9 (6-12) days. Conversely, the temporary BIVAD was removed in 21 (11-38) days in 10 of 19 patients. Six patients died while on temporary BIVAD because of multiple organ failure and cerebral bleeding, and three patients required conversion to implantable VAD. Compared with BIVAD, left ventricular unloading with Impella could be less invasive and could promote cardiac recovery in refractory FM patients. The Impella has the potential to provide effective temporary MCS for FM patients.
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Affiliation(s)
- Takuji Kawamura
- From the Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Koichi Toda
- From the Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Daisuke Yoshioka
- From the Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Masashi Kawamura
- From the Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Tetsuya Saito
- From the Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Ai Kawamura
- From the Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Kei Nakamoto
- Department of Cardiology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yasushi Sakata
- Department of Cardiology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Shigeru Miyagawa
- From the Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
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27
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Kawasumi R, Kawamura T, Yoshioka D, Kawamura M, Matsuura R, Toda K, Miyagawa S. Staged left ventricular assist device reimplantation via the left anterior wall approach for a patient with severe pump pocket infection. Artif Organs 2023. [PMID: 37114775 DOI: 10.1111/aor.14545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 04/07/2023] [Accepted: 04/07/2023] [Indexed: 04/29/2023]
Abstract
Pump pocket infection (PPI) is a refractory condition that can cause lethal complications in patients with a left ventricular assist device (LVAD). We report a case of PPI after LVAD implantation for ischemic cardiomyopathy that was successfully treated with staged pump reimplantation into the left ventricular anterior wall with the pedicled omental transfer. Major modification of the pump implantation site might be a useful strategy for local infection control of severe PPI.
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Affiliation(s)
- Ryo Kawasumi
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Takuji Kawamura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Daisuke Yoshioka
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Masashi Kawamura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Ryohei Matsuura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Koichi Toda
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Shigeru Miyagawa
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
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28
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Nakamura T, Matsumoto M, Amano K, Enokido Y, Zolensky ME, Mikouchi T, Genda H, Tanaka S, Zolotov MY, Kurosawa K, Wakita S, Hyodo R, Nagano H, Nakashima D, Takahashi Y, Fujioka Y, Kikuiri M, Kagawa E, Matsuoka M, Brearley AJ, Tsuchiyama A, Uesugi M, Matsuno J, Kimura Y, Sato M, Milliken RE, Tatsumi E, Sugita S, Hiroi T, Kitazato K, Brownlee D, Joswiak DJ, Takahashi M, Ninomiya K, Takahashi T, Osawa T, Terada K, Brenker FE, Tkalcec BJ, Vincze L, Brunetto R, Aléon-Toppani A, Chan QHS, Roskosz M, Viennet JC, Beck P, Alp EE, Michikami T, Nagaashi Y, Tsuji T, Ino Y, Martinez J, Han J, Dolocan A, Bodnar RJ, Tanaka M, Yoshida H, Sugiyama K, King AJ, Fukushi K, Suga H, Yamashita S, Kawai T, Inoue K, Nakato A, Noguchi T, Vilas F, Hendrix AR, Jaramillo-Correa C, Domingue DL, Dominguez G, Gainsforth Z, Engrand C, Duprat J, Russell SS, Bonato E, Ma C, Kawamoto T, Wada T, Watanabe S, Endo R, Enju S, Riu L, Rubino S, Tack P, Takeshita S, Takeichi Y, Takeuchi A, Takigawa A, Takir D, Tanigaki T, Taniguchi A, Tsukamoto K, Yagi T, Yamada S, Yamamoto K, Yamashita Y, Yasutake M, Uesugi K, Umegaki I, Chiu I, Ishizaki T, Okumura S, Palomba E, Pilorget C, Potin SM, Alasli A, Anada S, Araki Y, Sakatani N, Schultz C, Sekizawa O, Sitzman SD, Sugiura K, Sun M, Dartois E, De Pauw E, Dionnet Z, Djouadi Z, Falkenberg G, Fujita R, Fukuma T, Gearba IR, Hagiya K, Hu MY, Kato T, Kawamura T, Kimura M, Kubo MK, Langenhorst F, Lantz C, Lavina B, Lindner M, Zhao J, Vekemans B, Baklouti D, Bazi B, Borondics F, Nagasawa S, Nishiyama G, Nitta K, Mathurin J, Matsumoto T, Mitsukawa I, Miura H, Miyake A, Miyake Y, Yurimoto H, Okazaki R, Yabuta H, Naraoka H, Sakamoto K, Tachibana S, Connolly HC, Lauretta DS, Yoshitake M, Yoshikawa M, Yoshikawa K, Yoshihara K, Yokota Y, Yogata K, Yano H, Yamamoto Y, Yamamoto D, Yamada M, Yamada T, Yada T, Wada K, Usui T, Tsukizaki R, Terui F, Takeuchi H, Takei Y, Iwamae A, Soejima H, Shirai K, Shimaki Y, Senshu H, Sawada H, Saiki T, Ozaki M, Ono G, Okada T, Ogawa N, Ogawa K, Noguchi R, Noda H, Nishimura M, Namiki N, Nakazawa S, Morota T, Miyazaki A, Miura A, Mimasu Y, Matsumoto K, Kumagai K, Kouyama T, Kikuchi S, Kawahara K, Kameda S, Iwata T, Ishihara Y, Ishiguro M, Ikeda H, Hosoda S, Honda R, Honda C, Hitomi Y, Hirata N, Hirata N, Hayashi T, Hayakawa M, Hatakeda K, Furuya S, Fukai R, Fujii A, Cho Y, Arakawa M, Abe M, Watanabe S, Tsuda Y. Formation and evolution of carbonaceous asteroid Ryugu: Direct evidence from returned samples. Science 2023; 379:eabn8671. [PMID: 36137011 DOI: 10.1126/science.abn8671] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Samples of the carbonaceous asteroid Ryugu were brought to Earth by the Hayabusa2 spacecraft. We analyzed 17 Ryugu samples measuring 1 to 8 millimeters. Carbon dioxide-bearing water inclusions are present within a pyrrhotite crystal, indicating that Ryugu's parent asteroid formed in the outer Solar System. The samples contain low abundances of materials that formed at high temperatures, such as chondrules and calcium- and aluminum-rich inclusions. The samples are rich in phyllosilicates and carbonates, which formed through aqueous alteration reactions at low temperature, high pH, and water/rock ratios of <1 (by mass). Less altered fragments contain olivine, pyroxene, amorphous silicates, calcite, and phosphide. Numerical simulations, based on the mineralogical and physical properties of the samples, indicate that Ryugu's parent body formed ~2 million years after the beginning of Solar System formation.
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Affiliation(s)
- T Nakamura
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - M Matsumoto
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - K Amano
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - Y Enokido
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - M E Zolensky
- NASA Johnson Space Center; Houston, TX 77058, USA
| | - T Mikouchi
- The University Museum, The University of Tokyo, Tokyo 113-0033, Japan
| | - H Genda
- Earth-Life Science Institute, Tokyo Institute of Technology, Tokyo 152-8550, Japan
| | - S Tanaka
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - M Y Zolotov
- School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287, USA
| | - K Kurosawa
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - S Wakita
- Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - R Hyodo
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H Nagano
- Department of Mechanical Systems Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - D Nakashima
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - Y Takahashi
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.,Isotope Science Center, The University of Tokyo, Tokyo 113-0032, Japan
| | - Y Fujioka
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - M Kikuiri
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - E Kagawa
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - M Matsuoka
- Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique (LESIA), Observatoire de Paris, Meudon 92195 France.,Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, 305-8567, Japan
| | - A J Brearley
- Department of Earth and Planetary Sciences, University of New Mexico, Albuquerque, NM 87131, USA
| | - A Tsuchiyama
- Research Organization of Science and Technology, Ritsumeikan University, Kusatsu 525-8577, Japan.,Key Laboratory of Mineralogy and Metallogeny, Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences (CAS), Guangzhou 510640, China.,Center for Excellence in Deep Earth Science, CAS, Guangzhou 510640, China
| | - M Uesugi
- Scattering and Imaging Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - J Matsuno
- Research Organization of Science and Technology, Ritsumeikan University, Kusatsu 525-8577, Japan
| | - Y Kimura
- Institute of Low Temperature Science, Hokkaido University, Sapporo 060-0819, Japan
| | - M Sato
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - R E Milliken
- Department of Earth, Environmental, and Planetary Sciences, Brown University, Providence, RI 02912, USA
| | - E Tatsumi
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan.,Instituto de Astrofísica de Canarias, University of La Laguna, Tenerife 38205, Spain
| | - S Sugita
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan.,Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - T Hiroi
- Department of Earth, Environmental, and Planetary Sciences, Brown University, Providence, RI 02912, USA
| | - K Kitazato
- Aizu Research Center for Space Informatics, The University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - D Brownlee
- Department of Astronomy, University of Washington, Seattle, WA 98195 USA
| | - D J Joswiak
- Department of Astronomy, University of Washington, Seattle, WA 98195 USA
| | - M Takahashi
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - K Ninomiya
- Institute for Radiation Sciences, Osaka University, Toyonaka 560-0043, Japan
| | - T Takahashi
- Kavli Institute for the Physics and Mathematics of the Universe, The University of Tokyo, Kashiwa 277-8583, Japan.,Department of Physics, The University of Tokyo, Tokyo 113-0033, Japan
| | - T Osawa
- Materials Sciences Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - K Terada
- Department of Earth and Space Science, Osaka University, Toyonaka 560-0043, Japan
| | - F E Brenker
- Institute of Geoscience, Goethe University, Frankfurt, 60438 Frankfurt am Main, Germany
| | - B J Tkalcec
- Institute of Geoscience, Goethe University, Frankfurt, 60438 Frankfurt am Main, Germany
| | - L Vincze
- Department of Chemistry, Ghent University, Krijgslaan 281 S12, Ghent, Belgium
| | - R Brunetto
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - A Aléon-Toppani
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - Q H S Chan
- Department of Earth Sciences, Royal Holloway, University of London, Egham TW20 0EX, UK
| | - M Roskosz
- Institut de Minéralogie, Physique des Matériaux et Cosmochimie, Muséum National d'Histoire Naturelle, Centre national de la recherche scientifique (CNRS), Sorbonne Université, Paris, France
| | - J-C Viennet
- Institut de Minéralogie, Physique des Matériaux et Cosmochimie, Muséum National d'Histoire Naturelle, Centre national de la recherche scientifique (CNRS), Sorbonne Université, Paris, France
| | - P Beck
- Institut de Planétologie et d'Astrophysique de Grenoble, CNRS, Université Grenoble Alpes, 38000 Grenoble, France
| | - E E Alp
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - T Michikami
- Faculty of Engineering, Kindai University, Higashi-Hiroshima 739-2116, Japan
| | - Y Nagaashi
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan.,Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - T Tsuji
- Department of Earth Resources Engineering, Kyushu University, Fukuoka 819-0395, Japan.,School of Engineering, The University of Tokyo, Tokyo 113-0033, Japan
| | - Y Ino
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Physics, Kwansei Gakuin University, Sanda 669-1330, Japan
| | - J Martinez
- NASA Johnson Space Center; Houston, TX 77058, USA
| | - J Han
- Department of Earth and Atmospheric Sciences, University of Houston, Houston, TX 77204, USA
| | - A Dolocan
- Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712, USA
| | - R J Bodnar
- Department of Geoscience, Virginia Tech, Blacksburg, VA 24061, USA
| | - M Tanaka
- Materials Analysis Station, National Institute for Materials Science, Tsukuba 305-0047, Japan
| | - H Yoshida
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - K Sugiyama
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - A J King
- Department of Earth Science, Natural History Museum, London SW7 5BD, UK
| | - K Fukushi
- Institute of Nature and Environmental Technology, Kanazawa University, Kanazawa 920-1192, Japan
| | - H Suga
- Spectroscopy Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - S Yamashita
- Department of Materials Structure Science, The Graduate University for Advanced Studies (SOKENDAI), Tsukuba, Ibaraki 305-0801, Japan.,Institute of Materials Structure Science, High-Energy Accelerator Research Organization, Tsukuba 305-0801, Japan
| | - T Kawai
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - K Inoue
- Institute of Nature and Environmental Technology, Kanazawa University, Kanazawa 920-1192, Japan
| | - A Nakato
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Noguchi
- Division of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan.,Faculty of Arts and Science, Kyushu University, Fukuoka 819-0395, Japan
| | - F Vilas
- Planetary Science Institute, Tucson, AZ 85719, USA
| | - A R Hendrix
- Planetary Science Institute, Tucson, AZ 85719, USA
| | | | - D L Domingue
- Planetary Science Institute, Tucson, AZ 85719, USA
| | - G Dominguez
- Department of Physics, California State University, San Marcos, CA 92096, USA
| | - Z Gainsforth
- Space Sciences Laboratory, University of California, Berkeley, CA 94720, USA
| | - C Engrand
- Laboratoire de Physique des 2 Infinis Irène Joliot-Curie, Université Paris-Saclay, CNRS, 91405 Orsay, France
| | - J Duprat
- Institut de Minéralogie, Physique des Matériaux et Cosmochimie, Muséum National d'Histoire Naturelle, Centre national de la recherche scientifique (CNRS), Sorbonne Université, Paris, France
| | - S S Russell
- Department of Earth Science, Natural History Museum, London SW7 5BD, UK
| | - E Bonato
- Institute for Planetary Research, Deutsches Zentrum für Luftund Raumfahrt, Rutherfordstraße 2 12489 Berlin, Germany
| | - C Ma
- Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena CA 91125, USA
| | - T Kawamoto
- Department of Geosciences, Shizuoka University, Shizuoka 422-8529, Japan
| | - T Wada
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - S Watanabe
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Kavli Institute for the Physics and Mathematics of the Universe, The University of Tokyo, Kashiwa 277-8583, Japan
| | - R Endo
- Department of Materials Science and Engineering, Tokyo Institute of Technology, Tokyo 152-8550, Japan
| | - S Enju
- Graduate School of Science and Engineering, Ehime University, Matsuyama 790-8577, Japan
| | - L Riu
- European Space Astronomy Centre, 28692 Villanueva de la Cañada, Spain
| | - S Rubino
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - P Tack
- Department of Chemistry, Ghent University, Krijgslaan 281 S12, Ghent, Belgium
| | - S Takeshita
- High Energy Accelerator Research Organization, Tokai 319-1106, Japan
| | - Y Takeichi
- Department of Materials Structure Science, The Graduate University for Advanced Studies (SOKENDAI), Tsukuba, Ibaraki 305-0801, Japan.,Institute of Materials Structure Science, High-Energy Accelerator Research Organization, Tsukuba 305-0801, Japan.,Department of Applied Physics, Osaka University, Suita 565-0871, Japan
| | - A Takeuchi
- Scattering and Imaging Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - A Takigawa
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - D Takir
- NASA Johnson Space Center; Houston, TX 77058, USA
| | | | - A Taniguchi
- Institute for Integrated Radiation and Nuclear Science, Kyoto University, Kumatori 590-0494, Japan
| | - K Tsukamoto
- Department of Earth Sciences, Tohoku University, Sendai 980-8578, Japan
| | - T Yagi
- National Metrology Institute of Japan, AIST, Tsukuba 305-8565, Japan
| | - S Yamada
- Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - K Yamamoto
- Japan Fine Ceramics Center, Nagoya 456-8587, Japan
| | - Y Yamashita
- National Metrology Institute of Japan, AIST, Tsukuba 305-8565, Japan
| | - M Yasutake
- Scattering and Imaging Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - K Uesugi
- Scattering and Imaging Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - I Umegaki
- High Energy Accelerator Research Organization, Tokai 319-1106, Japan.,Toyota Central Research and Development Laboratories, Nagakute 480-1192, Japan
| | - I Chiu
- Institute for Radiation Sciences, Osaka University, Toyonaka 560-0043, Japan
| | - T Ishizaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Okumura
- Division of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan
| | - E Palomba
- Istituto di Astrofisica e Planetologia Spaziali, Istituto Nazionale di Astrofisica, Rome 00133, Italy
| | - C Pilorget
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France.,Institut Universitaire de France, Paris, France
| | - S M Potin
- Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique (LESIA), Observatoire de Paris, Meudon 92195 France.,Faculty of Aerospace Engineering, Delft University of Technology, Delft, Netherlands
| | - A Alasli
- Department of Mechanical Systems Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - S Anada
- Japan Fine Ceramics Center, Nagoya 456-8587, Japan
| | - Y Araki
- Department of Physical Sciences, Ritsumeikan University, Shiga 525-0058, Japan
| | - N Sakatani
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - C Schultz
- Department of Earth, Environmental, and Planetary Sciences, Brown University, Providence, RI 02912, USA
| | - O Sekizawa
- Spectroscopy Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - S D Sitzman
- Physical Sciences Laboratory, The Aerospace Corporation, CA 90245, USA
| | - K Sugiura
- Earth-Life Science Institute, Tokyo Institute of Technology, Tokyo 152-8550, Japan
| | - M Sun
- Key Laboratory of Mineralogy and Metallogeny, Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences (CAS), Guangzhou 510640, China.,Center for Excellence in Deep Earth Science, CAS, Guangzhou 510640, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - E Dartois
- Institut des Sciences Moléculaires d'Orsay, Université Paris-Saclay, CNRS, 91405 Orsay, France
| | - E De Pauw
- Department of Chemistry, Ghent University, Krijgslaan 281 S12, Ghent, Belgium
| | - Z Dionnet
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - Z Djouadi
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - G Falkenberg
- Deutsches Elektronen-Synchrotron Photon Science, 22603 Hamburg, Germany
| | - R Fujita
- Department of Mechanical Systems Engineering, Nagoya University, Nagoya 464-8603, Japan
| | - T Fukuma
- Nano Life Science Institute, Kanazawa University, Kanazawa 920-1192, Japan
| | - I R Gearba
- Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712, USA
| | - K Hagiya
- Graduate School of Life Science, University of Hyogo, Hyogo 678-1297, Japan
| | - M Y Hu
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - T Kato
- Japan Fine Ceramics Center, Nagoya 456-8587, Japan
| | - T Kawamura
- Institut de Physique du Globe de Paris, Université de Paris, Paris 75205, France
| | - M Kimura
- Department of Materials Structure Science, The Graduate University for Advanced Studies (SOKENDAI), Tsukuba, Ibaraki 305-0801, Japan.,Institute of Materials Structure Science, High-Energy Accelerator Research Organization, Tsukuba 305-0801, Japan
| | - M K Kubo
- Division of Natural Sciences, International Christian University, Mitaka 181-8585, Japan
| | - F Langenhorst
- Institute of Geosciences, Friedrich-Schiller-Universität Jena, 07745 Jena, Germany
| | - C Lantz
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - B Lavina
- Center for Advanced Radiation Sources, University of Chicago, Chicago, IL 60637, USA
| | - M Lindner
- Institute of Geoscience, Goethe University, Frankfurt, 60438 Frankfurt am Main, Germany
| | - J Zhao
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA
| | - B Vekemans
- Department of Chemistry, Ghent University, Krijgslaan 281 S12, Ghent, Belgium
| | - D Baklouti
- Institut d'Astrophysique Spatiale, Université Paris-Saclay, Orsay 91405, France
| | - B Bazi
- Department of Chemistry, Ghent University, Krijgslaan 281 S12, Ghent, Belgium
| | - F Borondics
- Optimized Light Source of Intermediate Energy to LURE (SOLEIL) L'Orme des Merisiers, Gif sur Yvette F-91192, France
| | - S Nagasawa
- Kavli Institute for the Physics and Mathematics of the Universe, The University of Tokyo, Kashiwa 277-8583, Japan.,Department of Physics, The University of Tokyo, Tokyo 113-0033, Japan
| | - G Nishiyama
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - K Nitta
- Spectroscopy Division, Japan Synchrotron Radiation Research Institute, Sayo 679-5198, Japan
| | - J Mathurin
- Institut Chimie Physique, Université Paris-Saclay, CNRS, 91405 Orsay, France
| | - T Matsumoto
- Division of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan
| | - I Mitsukawa
- Division of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan
| | - H Miura
- Graduate School of Science, Nagoya City University, Nagoya 467-8501, Japan
| | - A Miyake
- Division of Earth and Planetary Sciences, Kyoto University, Kyoto 606-8502, Japan
| | - Y Miyake
- High Energy Accelerator Research Organization, Tokai 319-1106, Japan
| | - H Yurimoto
- Department of Natural History Sciences, Hokkaido University, Sapporo 060-0810, Japan
| | - R Okazaki
- Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 819-0395, Japan
| | - H Yabuta
- Graduate School of Advanced Science and Engineering, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
| | - H Naraoka
- Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 819-0395, Japan
| | - K Sakamoto
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Tachibana
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - H C Connolly
- Department of Geology, Rowan University, Glassboro, NJ 08028, USA
| | - D S Lauretta
- Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ 85721, USA
| | - M Yoshitake
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Yoshikawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - K Yoshikawa
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - K Yoshihara
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y Yokota
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Yogata
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H Yano
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - Y Yamamoto
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - D Yamamoto
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Yamada
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - T Yamada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Yada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Wada
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - T Usui
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - R Tsukizaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - F Terui
- Department of Mechanical Engineering, Kanagawa Institute of Technology, Atsugi 243-0292, Japan
| | - H Takeuchi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - Y Takei
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - A Iwamae
- Marine Works Japan, Yokosuka 237-0063, Japan
| | - H Soejima
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Marine Works Japan, Yokosuka 237-0063, Japan
| | - K Shirai
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y Shimaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - H Senshu
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan
| | - H Sawada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Saiki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Ozaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - G Ono
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - T Okada
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Chemistry, The University of Tokyo, Tokyo 113-0033, Japan
| | - N Ogawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Ogawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - R Noguchi
- Faculty of Science, Niigata University, Niigata 950-2181, Japan
| | - H Noda
- National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - M Nishimura
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - N Namiki
- Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan.,National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - S Nakazawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - T Morota
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - A Miyazaki
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - A Miura
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y Mimasu
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Matsumoto
- Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan.,National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - K Kumagai
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Marine Works Japan, Yokosuka 237-0063, Japan
| | - T Kouyama
- Digital Architecture Research Center, National Institute of Advanced Industrial Science and Technology, Tokyo 135-0064, Japan
| | - S Kikuchi
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino 275-0016, Japan.,National Astronomical Observatory of Japan, Mitaka 181-8588, Japan
| | - K Kawahara
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - S Kameda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Physics, Rikkyo University, Tokyo 171-8501, Japan
| | - T Iwata
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - Y Ishihara
- JAXA Space Exploration Center, JAXA, Sagamihara 252-5210, Japan
| | - M Ishiguro
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - H Ikeda
- Research and Development Directorate, JAXA, Sagamihara 252-5210, Japan
| | - S Hosoda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - R Honda
- Department of Information Science, Kochi University, Kochi 780-8520, Japan.,Center for Data Science, Ehime University, Matsuyama 790-8577, Japan
| | - C Honda
- Aizu Research Center for Space Informatics, The University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - Y Hitomi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Marine Works Japan, Yokosuka 237-0063, Japan
| | - N Hirata
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - N Hirata
- Aizu Research Center for Space Informatics, The University of Aizu, Aizu-Wakamatsu 965-8580, Japan
| | - T Hayashi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - M Hayakawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - K Hatakeda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Marine Works Japan, Yokosuka 237-0063, Japan
| | - S Furuya
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - R Fukai
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - A Fujii
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
| | - Y Cho
- Department of Earth and Planetary Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - M Arakawa
- Department of Planetology, Kobe University, Kobe 657-8501, Japan
| | - M Abe
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan.,Department of Space and Astronautical Science, The Graduate University for Advanced Studies (SOKENDAI), Hayama 240-0193, Japan
| | - S Watanabe
- Department of Earth and Environmental Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - Y Tsuda
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA), Sagamihara 252-5210, Japan
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Kawamura T, Yoshioka D, Kawamura M, Matsuura R, Kawamura A, Misumi Y, Mikami T, Sawa Y, Miyagawa S. Enhanced myocardial blood flow in ischemic cardiomyopathy by a slow-release synthetic prostacyclin agonist combined with coronary artery bypass grafting: The first human study in a Phase I/IIa clinical trial. Front Cardiovasc Med 2023; 10:1047666. [PMID: 36760570 PMCID: PMC9905424 DOI: 10.3389/fcvm.2023.1047666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Accepted: 01/04/2023] [Indexed: 01/26/2023] Open
Abstract
Background YS-1402, which is a polymerized form of the synthetic prostacyclin agonist ONO-1301, has been proven in several preclinical studies to induce therapeutic effects for patients with ischemic cardiomyopathy (ICM). In this human study, we assessed the safety, tolerability, and efficacy of YS-1402, combined with coronary artery bypass grafting (CABG), for ICM. Methods Twenty-four patients with ICM whose left ventricular ejection fraction was <40% with an indication for CABG were double-blindly assigned to four groups: placebo, 10-mg YS-1402, 30-mg YS-1402, and 100-mg YS-1402. YS-1402 or placebo medications were administered on the surface of the left ventricle at the time of the CABG. Pre- and postoperative cardiac function and myocardial blood flow were assessed for 6 months postoperatively, along with a safety assessment. Results No severe adverse events were related to YS-1402. The maximum blood concentration of ONO-1301 was less than that of the no observable adverse effect level. Significantly increased myocardial blood flow (MBF) and cardiac function were observed in the YS-1402 group 26 weeks postoperatively, although no improvement in MBF occurred in the placebo group. Conclusion This Phase I/IIa parallel group-controlled, dose-escalation study of YS-1402 combined with CABG for ICM demonstrated the safety, tolerability, and potential efficacy of YS-1402.
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Mori D, Miyagawa S, Kawamura T, Yoshioka D, Hata H, Ueno T, Toda K, Kuratani T, Oota M, Kawai K, Kurata H, Nishida H, Harada A, Toyofuku T, Sawa Y. Mitochondrial Transfer Induced by Adipose-Derived Mesenchymal Stem Cell Transplantation Improves Cardiac Function in Rat Models of Ischemic Cardiomyopathy. Cell Transplant 2023; 32:9636897221148457. [PMID: 36624995 PMCID: PMC9834779 DOI: 10.1177/09636897221148457] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Although mesenchymal stem cell transplantation has been successful in the treatment of ischemic cardiomyopathy, the underlying mechanisms remain unclear. Herein, we investigated whether mitochondrial transfer could explain the success of cell therapy in ischemic cardiomyopathy. Mitochondrial transfer in co-cultures of human adipose-derived mesenchymal stem cells and rat cardiomyocytes maintained under hypoxic conditions was examined. Functional recovery was monitored in a rat model of myocardial infarction following human adipose-derived mesenchymal stem cell transplantation. We observed mitochondrial transfer in vitro, which required the formation of cell-to-cell contacts and synergistically enhanced energy metabolism. Rat cardiomyocytes exhibited mitochondrial transfer 3 days following human adipose-derived mesenchymal stem cell transplantation to the ischemic heart surface post-myocardial infarction. We detected donor mitochondrial DNA in the recipient myocardium concomitant with a significant improvement in cardiac function. Mitochondrial transfer is vital for successful cell transplantation therapies and improves treatment outcomes in ischemic cardiomyopathy.
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Affiliation(s)
- Daisuke Mori
- Department of Cardiovascular Surgery,
Osaka University Graduate School of Medicine, Suita, Japan
| | - Shigeru Miyagawa
- Department of Cardiovascular Surgery,
Osaka University Graduate School of Medicine, Suita, Japan
| | - Takuji Kawamura
- Department of Cardiovascular Surgery,
Osaka University Graduate School of Medicine, Suita, Japan
| | - Daisuke Yoshioka
- Department of Cardiovascular Surgery,
Osaka University Graduate School of Medicine, Suita, Japan
| | - Hiroki Hata
- Department of Cardiovascular Surgery,
Osaka University Graduate School of Medicine, Suita, Japan
| | - Takayoshi Ueno
- Department of Cardiovascular Surgery,
Osaka University Graduate School of Medicine, Suita, Japan
| | - Koichi Toda
- Department of Cardiovascular Surgery,
Osaka University Graduate School of Medicine, Suita, Japan
| | - Toru Kuratani
- Department of Cardiovascular Surgery,
Osaka University Graduate School of Medicine, Suita, Japan
| | - Miwa Oota
- Institute of Advanced Stem Cell
Therapy, Osaka University, Osaka, Japan,ROHTO Pharmaceutical Co., Ltd., Osaka,
Japan
| | - Kotoe Kawai
- Institute of Advanced Stem Cell
Therapy, Osaka University, Osaka, Japan,ROHTO Pharmaceutical Co., Ltd., Osaka,
Japan
| | - Hayato Kurata
- Institute of Advanced Stem Cell
Therapy, Osaka University, Osaka, Japan,ROHTO Pharmaceutical Co., Ltd., Osaka,
Japan
| | - Hiroyuki Nishida
- Institute of Advanced Stem Cell
Therapy, Osaka University, Osaka, Japan,ROHTO Pharmaceutical Co., Ltd., Osaka,
Japan
| | - Akima Harada
- Department of Cardiovascular Surgery,
Osaka University Graduate School of Medicine, Suita, Japan
| | - Toshihiko Toyofuku
- Institute of Immunology and
Regenerative Medicine, Osaka University, Osaka, Japan
| | - Yoshiki Sawa
- Department of Cardiovascular Surgery,
Osaka University Graduate School of Medicine, Suita, Japan,Medical Centre for Translational and
Clinical Research, Osaka University Hospital, Osaka, Japan,Yoshiki Sawa, Department of Cardiovascular
Surgery, Osaka University Graduate School of Medicine, Suita 565-0871, Japan.
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31
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Maeda S, Kawamura T, Chida D, Shimamura K, Toda K, Harada A, Sawa Y, Miyagawa S. Notch Signaling-Modified Mesenchymal Stem Cell Patch Improves Left Ventricular Function via Arteriogenesis Induction in a Rat Myocardial Infarction Model. Cell Transplant 2023; 32:9636897231154580. [PMID: 36946544 PMCID: PMC10037722 DOI: 10.1177/09636897231154580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023] Open
Abstract
For ischemic cardiomyopathy (ICM) with limited therapeutic options, the induction of arteriogenesis has the potential to improve cardiac function through major restoration of blood flow. We hypothesized that transplantation of a Notch signaling-modified mesenchymal stem cell (SB623 cell) patch would induce angiogenesis and arteriogenesis in ischemic lesions, leading to improvement of left ventricular (LV) function in a rat ICM model. Two weeks after the induction of ischemia, SB623 cell patch transplantation into ICM rats (SB group, n = 10) or a sham operation (no-treatment group, n = 10) was performed. The LV ejection fraction was significantly improved at 6 weeks after SB623 cell patch transplantation (P < 0.001). Histological findings revealed that the number of von Willebrand factor (vWF)-positive capillary vessels (P < 0.01) and alpha smooth muscle actin (αSMA)- and vWF-positive arterioles with a diameter greater than 20 µm (P = 0.002) was significantly increased in the SB group, suggesting the induction of angiogenesis and arteriogenesis. Moreover, rat cardiomyocytes treated with SB623 cell patch transplantation showed upregulation of ephrin-B2 (P = 0.03) and EphB4 (P = 0.01) gene expression, indicating arteriogenesis induction. In conclusion, SB623 cell patch transplantation improved LV function by inducing angiogenesis and arteriogenesis in a rat ICM model.
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Affiliation(s)
- Shusaku Maeda
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Takuji Kawamura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | | | - Kazuo Shimamura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Koichi Toda
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Akima Harada
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Yoshiki Sawa
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Shigeru Miyagawa
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
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32
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Ogawa Y, Asakawa R, Shimada S, Kawamura T. 385 Purinergic molecules in murine mast cells. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.09.398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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33
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Kawamura T, Sekiguchi M, Takamaru H, Mizuguchi Y, Horiguchi G, Kato M, Kobayashi K, Sada M, Oda Y, Yokoyama A, Utsumi T, Tsuji Y, Ohki D, Takeuchi Y, Shichijo S, Ikematsu H, Matsuda K, Teramukai S, Kobayashi N, Matsuda T, Saito Y, Tanaka K. "Endoscopic" adenoma detection rate as a quality indicator of colonoscopy: First report from the J-SCOUT study. Dig Endosc 2022. [PMID: 36434769 DOI: 10.1111/den.14483] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Accepted: 11/23/2022] [Indexed: 11/27/2022]
Abstract
OBJECTIVES To examine whether reasonable detection rate of endoscopically diagnosed lesions as adenoma ("endoscopic" adenoma detection rate [ADR]) could be calculated with a database generated from colonoscopy reports and whether it could be used as a surrogate colonoscopy quality indicator of "pathological" ADR. METHODS A lesion-by-lesion database of colonoscopies performed between 2010 and 2020 at eight Japanese endoscopy centers and corresponding pathology database were integrated. Differences in numbers of detected polyps, "endoscopic" and "pathological" adenomas, and what these differences could be attributed to were examined. Polyp detection rate (PDR), "endoscopic" and "pathological" ADRs, and correlation coefficients between "pathological" ADR and PDR or "endoscopic" ADR by each endoscopist were calculated. RESULTS Overall, 129,065 colonoscopy reports were analyzed. Among a total of 146,854 polyps, more "endoscopic" adenomas (n = 117,359) were observed than "pathological" adenomas (n = 70,076), primarily because adenomas were not resected on site, rather than because of a misdiagnosis. In all patients analyzed, PDR, "endoscopic" and "pathological" ADRs were 56.4% (95% confidence interval [CI] 56.2-56.7), 48.0% (95% CI 47.7-48.3), and 32.7% (95% CI 32.5-33.0), respectively. "Endoscopic" and "pathological" ADRs from each endoscopist showed a high correlation in hospitals where adenomas were usually resected at the time of examination. CONCLUSIONS By appropriately describing endoscopically diagnosed lesions as "adenomas" in endoscopy reports, "endoscopic" ADR might be used as a surrogate colonoscopy quality indicator of "pathological" ADR (UMIN000040690).
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Affiliation(s)
- Takuji Kawamura
- Department of Gastroenterology, Kyoto Second Red Cross Hospital, Kyoto, Japan
| | - Masau Sekiguchi
- Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan.,Cancer Screening Center, National Cancer Center Hospital, Tokyo, Japan
| | | | | | - Go Horiguchi
- Department of Biostatistics, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Masayuki Kato
- Department of Endoscopy, The Jikei University Katsushika Medical Center, Tokyo, Japan
| | | | - Miwa Sada
- Department of Gastroenterology, Kitasato University, Kanagawa, Japan
| | - Yasushi Oda
- Oda GI Endoscopy and Gastroenterology Clinic, Kumamoto, Japan
| | - Akira Yokoyama
- Department of Therapeutic Oncology, Kyoto University, Kyoto, Japan
| | - Takahiro Utsumi
- Department of Gastroenterology and Hepatology, Kyoto University, Kyoto, Japan
| | - Yosuke Tsuji
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Daisuke Ohki
- Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yoji Takeuchi
- Department of Gastrointestinal Oncology, Osaka International Cancer Institute, Osaka, Japan.,Department of Genetic Oncology, Division of Hereditary Tumors, Osaka International Cancer Institute, Osaka, Japan
| | - Satoki Shichijo
- Department of Gastrointestinal Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - Hiroaki Ikematsu
- Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Chiba, Japan
| | - Koji Matsuda
- Department of Gastroenterology, Shizuoka Medical Center, Shizuoka, Japan
| | - Satoshi Teramukai
- Department of Biostatistics, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Nozomu Kobayashi
- Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan.,Cancer Screening Center, National Cancer Center Hospital, Tokyo, Japan
| | - Takahisa Matsuda
- Division of Gastroenterology and Hepatology, Toho University Omori Medical Center, Tokyo, Japan
| | - Yutaka Saito
- Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan
| | - Kiyohito Tanaka
- Department of Gastroenterology, Kyoto Second Red Cross Hospital, Kyoto, Japan
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34
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Nakae M, Kainuma S, Toda K, Yoshioka D, Kawamura T, Kawamura A, Kashiyama N, Komukai S, Kitamura T, Hirayama A, Shimomura Y, Taniguchi K, Miyagawa S. Ventricular Arrhythmias Following Coronary Artery Bypass Grafting for Ischemic Cardiomyopathy: When to insert an implanted cardiac defibrillator? JTCVS Open 2022; 13:163-175. [PMID: 37063141 PMCID: PMC10091212 DOI: 10.1016/j.xjon.2022.10.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 09/12/2022] [Accepted: 10/06/2022] [Indexed: 11/17/2022]
Abstract
Objectives The study objectives were to determine the incidence, predictors, and clinical impact of ventricular arrhythmias after coronary artery bypass grafting and to evaluate the impact of implantable cardioverter defibrillators on the survival of patients with ventricular arrhythmias. Methods We enrolled 498 patients with a left ventricular ejection fraction of 40% or less who underwent coronary artery bypass grafting between 1993 and 2015. Clinical follow-up was completed in 94.0% of patients, with a median follow-up of 58.4 months. Results Overall, 212 patients (43%) died, mainly of heart failure (n = 54, 10.8%) or sudden cardiac death (n = 40, 8.0%). The sudden cardiac death rate was highest during the first 6 months, with a monthly rate of 0.37%. Overall, 99 patients (20%) developed postoperative ventricular arrhythmias, and implantable cardioverter defibrillator was implanted in 55 patients. Previous ventricular arrhythmias (hazard ratio, 3.22; 95% confidence interval, 1.98-5.24; P < .001), left ventricular end-systolic dimension (hazard ratio, 1.07; 95% confidence interval, 1.04-1.10; P < .001), and myocardial infarction in the left anterior descending artery territory (hazard ratio, 1.73; 95% confidence interval, 1.10-2.73; P = .02) were independent predictors of postoperative ventricular arrhythmias. Notably, the 5-year survival of patients with ventricular arrhythmias who received an implantable cardioverter defibrillator was significantly higher than that of patients with ventricular arrhythmias who did not receive it (76.1% vs 22.7%, P < .001) and was comparable to that of patients without ventricular arrhythmias (76.1% vs 73.6%, P = .98). Conclusions Sudden cardiac death affects a significant proportion of patients with ischemic cardiomyopathy undergoing coronary artery bypass grafting, most frequently within 6 months postoperatively. To prevent sudden cardiac death, earlier implantable cardioverter defibrillator implantation should be indicated for high-risk patients with scars in the left anterior descending artery territory and excessive left ventricular remodeling.
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Affiliation(s)
- Masaro Nakae
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
- Address for reprints: Masaro Nakae, MD,
| | - Satoshi Kainuma
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Koichi Toda
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Daisuke Yoshioka
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Takuji Kawamura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Ai Kawamura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Noriyuki Kashiyama
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Sho Komukai
- Division of Biomedical Statistics, Department of Integrated Medicine, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Tetsuhisa Kitamura
- Division of Environmental Medicine and Population Sciences, Department of Social and Environmental Medicine, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Atsushi Hirayama
- Public Health, Department of Social and Environmental Medicine, Osaka University Graduate School of Medicine, Suita, Japan
| | - Yoshimitsu Shimomura
- Division of Environmental Medicine and Population Sciences, Department of Social and Environmental Medicine, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Kazuhiro Taniguchi
- Department of Cardiovascular Surgery, Higashiosaka City Medical Center, Higashiosaka, Osaka, Japan
| | - Shigeru Miyagawa
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
- Shigeru Miyagawa, MD, PhD, Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2-E1, Yamadaoka, Suita, Osaka 565-0871, Japan.
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35
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Kim D, Banerdt WB, Ceylan S, Giardini D, Lekić V, Lognonné P, Beghein C, Beucler É, Carrasco S, Charalambous C, Clinton J, Drilleau M, Durán C, Golombek M, Joshi R, Khan A, Knapmeyer-Endrun B, Li J, Maguire R, Pike WT, Samuel H, Schimmel M, Schmerr NC, Stähler SC, Stutzmann E, Wieczorek M, Xu Z, Batov A, Bozdag E, Dahmen N, Davis P, Gudkova T, Horleston A, Huang Q, Kawamura T, King SD, McLennan SM, Nimmo F, Plasman M, Plesa AC, Stepanova IE, Weidner E, Zenhäusern G, Daubar IJ, Fernando B, Garcia RF, Posiolova LV, Panning MP. Surface waves and crustal structure on Mars. Science 2022; 378:417-421. [DOI: 10.1126/science.abq7157] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
We detected surface waves from two meteorite impacts on Mars. By measuring group velocity dispersion along the impact-lander path, we obtained a direct constraint on crustal structure away from the InSight lander. The crust north of the equatorial dichotomy had a shear wave velocity of approximately 3.2 kilometers per second in the 5- to 30-kilometer depth range, with little depth variation. This implies a higher crustal density than inferred beneath the lander, suggesting either compositional differences or reduced porosity in the volcanic areas traversed by the surface waves. The lower velocities and the crustal layering observed beneath the landing site down to a 10-kilometer depth are not a global feature. Structural variations revealed by surface waves hold implications for models of the formation and thickness of the martian crust.
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Affiliation(s)
- D. Kim
- Institute of Geophysics, ETH Zürich, Zürich, Switzerland
- Department of Geology, University of Maryland, College Park, MD, USA
| | - W. B. Banerdt
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA
| | - S. Ceylan
- Institute of Geophysics, ETH Zürich, Zürich, Switzerland
| | - D. Giardini
- Institute of Geophysics, ETH Zürich, Zürich, Switzerland
| | - V. Lekić
- Department of Geology, University of Maryland, College Park, MD, USA
| | - P. Lognonné
- Université Paris Cité, Institut de physique du globe de Paris, CNRS, Paris, France
| | - C. Beghein
- Department of Earth, Planetary and Space Sciences, University of California, Los Angeles, CA, USA
| | - É. Beucler
- Nantes Université, Université Angers, Le Mans Université, CNRS, UMR 6112, Laboratoire de Planétologie et Géosciences, Nantes, France
| | - S. Carrasco
- Bensberg Observatory, University of Cologne, Bergisch Gladbach, Germany
| | - C. Charalambous
- Department of Electrical and Electronic Engineering, Imperial College London, London, UK
| | - J. Clinton
- Swiss Seismological Service, ETH Zürich, Zürich, Switzerland
| | - M. Drilleau
- Institut Supérieur de l’Aéronautique et de l’Espace ISAE-SUPAERO, Toulouse, France
| | - C. Durán
- Institute of Geophysics, ETH Zürich, Zürich, Switzerland
| | - M. Golombek
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA
| | - R. Joshi
- Max Planck Institute for Solar System Research, Göttingen, Germany
| | - A. Khan
- Institute of Geophysics, ETH Zürich, Zürich, Switzerland
- Physik-Institut, University of Zürich, Zürich, Switzerland
| | | | - J. Li
- Department of Earth, Planetary and Space Sciences, University of California, Los Angeles, CA, USA
| | - R. Maguire
- Department of Geology, University of Illinois Urbana-Champaign, Champaign, IL, USA
| | - W. T. Pike
- Bensberg Observatory, University of Cologne, Bergisch Gladbach, Germany
| | - H. Samuel
- Université Paris Cité, Institut de physique du globe de Paris, CNRS, Paris, France
| | - M. Schimmel
- Geosciences Barcelona, CSIC, Barcelona, Spain
| | - N. C. Schmerr
- Department of Geology, University of Maryland, College Park, MD, USA
| | - S. C. Stähler
- Institute of Geophysics, ETH Zürich, Zürich, Switzerland
| | - E. Stutzmann
- Université Paris Cité, Institut de physique du globe de Paris, CNRS, Paris, France
| | - M. Wieczorek
- Université Côte d’Azur, Observatoire de la Côte d’Azur, CNRS, Laboratoire Lagrange, Nice, France
| | - Z. Xu
- Université Paris Cité, Institut de physique du globe de Paris, CNRS, Paris, France
| | - A. Batov
- Schmidt Institute of Physics of the Earth, Russian Academy of Sciences, Moscow, Russia
| | - E. Bozdag
- Department of Geophysics, Colorado School of Mines, Golden, CO, USA
| | - N. Dahmen
- Institute of Geophysics, ETH Zürich, Zürich, Switzerland
| | - P. Davis
- Department of Earth, Planetary and Space Sciences, University of California, Los Angeles, CA, USA
| | - T. Gudkova
- Schmidt Institute of Physics of the Earth, Russian Academy of Sciences, Moscow, Russia
| | - A. Horleston
- School of Earth Sciences, University of Bristol, Bristol, UK
| | - Q. Huang
- Department of Geophysics, Colorado School of Mines, Golden, CO, USA
| | - T. Kawamura
- Université Paris Cité, Institut de physique du globe de Paris, CNRS, Paris, France
| | - S. D. King
- Department of Geosciences, Virginia Tech, Blacksburg, VA, USA
| | - S. M. McLennan
- Department of Geosciences, Stony Brook University, Stony Brook, NY, USA
| | - F. Nimmo
- Department of Earth and Planetary Sciences, University of California Santa Cruz, Santa Cruz, CA, USA
| | - M. Plasman
- Université Paris Cité, Institut de physique du globe de Paris, CNRS, Paris, France
| | - A. C. Plesa
- Institute of Planetary Research, German Aerospace Center (DLR), Berlin, Germany
| | - I. E. Stepanova
- Schmidt Institute of Physics of the Earth, Russian Academy of Sciences, Moscow, Russia
| | - E. Weidner
- Department of Earth, Planetary and Space Sciences, University of California, Los Angeles, CA, USA
| | - G. Zenhäusern
- Institute of Geophysics, ETH Zürich, Zürich, Switzerland
| | - I. J. Daubar
- Department of Earth, Environmental, and Planetary Sciences, Brown University, Providence, RI, USA
| | - B. Fernando
- Department of Earth Sciences, University of Oxford, Oxford, UK
| | - R. F. Garcia
- Institut Supérieur de l’Aéronautique et de l’Espace ISAE-SUPAERO, Toulouse, France
| | | | - M. P. Panning
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA
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36
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Posiolova LV, Lognonné P, Banerdt WB, Clinton J, Collins GS, Kawamura T, Ceylan S, Daubar IJ, Fernando B, Froment M, Giardini D, Malin MC, Miljković K, Stähler SC, Xu Z, Banks ME, Beucler É, Cantor BA, Charalambous C, Dahmen N, Davis P, Drilleau M, Dundas CM, Durán C, Euchner F, Garcia RF, Golombek M, Horleston A, Keegan C, Khan A, Kim D, Larmat C, Lorenz R, Margerin L, Menina S, Panning M, Pardo C, Perrin C, Pike WT, Plasman M, Rajšić A, Rolland L, Rougier E, Speth G, Spiga A, Stott A, Susko D, Teanby NA, Valeh A, Werynski A, Wójcicka N, Zenhäusern G. Largest recent impact craters on Mars: Orbital imaging and surface seismic co-investigation. Science 2022; 378:412-417. [DOI: 10.1126/science.abq7704] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Two >130-meter-diameter impact craters formed on Mars during the later half of 2021. These are the two largest fresh impact craters discovered by the Mars Reconnaissance Orbiter since operations started 16 years ago. The impacts created two of the largest seismic events (magnitudes greater than 4) recorded by InSight during its 3-year mission. The combination of orbital imagery and seismic ground motion enables the investigation of subsurface and atmospheric energy partitioning of the impact process on a planet with a thin atmosphere and the first direct test of martian deep-interior seismic models with known event distances. The impact at 35°N excavated blocks of water ice, which is the lowest latitude at which ice has been directly observed on Mars.
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Affiliation(s)
| | - P. Lognonné
- Université Paris Cité, Institut de Physique du Globe de Paris, CNRS, Paris, France
| | - W. B. Banerdt
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA
| | - J. Clinton
- Swiss Seismological Service, ETH Zurich, Zurich, Switzerland
| | - G. S. Collins
- Department of Earth Science and Engineering, Imperial College London, London, UK
| | - T. Kawamura
- Université Paris Cité, Institut de Physique du Globe de Paris, CNRS, Paris, France
| | - S. Ceylan
- Institute of Geophysics, ETH Zurich, Zurich, Switzerland
| | - I. J. Daubar
- Department of Earth, Environmental, and Planetary Sciences, Brown University, Providence, RI, USA
| | - B. Fernando
- Department of Earth Sciences, University of Oxford, Oxford, UK
| | - M. Froment
- Université Paris Cité, Institut de Physique du Globe de Paris, CNRS, Paris, France
- Earth and Environmental Sciences Division, Los Alamos National Laboratory, Los Alamos, NM, USA
| | - D. Giardini
- Institute of Geophysics, ETH Zurich, Zurich, Switzerland
| | - M. C. Malin
- Malin Space Science Systems, San Diego, CA, USA
| | - K. Miljković
- Space Science and Technology Centre, School of Earth and Planetary Sciences, Curtin University, Perth, WA, Australia
| | - S. C. Stähler
- Institute of Geophysics, ETH Zurich, Zurich, Switzerland
| | - Z. Xu
- Université Paris Cité, Institut de Physique du Globe de Paris, CNRS, Paris, France
| | - M. E. Banks
- NASA Goddard Space Flight Center, Greenbelt, MD, USA
| | - É. Beucler
- Nantes Université, Université Angers, Le Mans Université, CNRS, UMR 6112, Laboratoire de Planétologie et Géosciences, Nantes, France
| | | | - C. Charalambous
- Department of Electrical and Electronic Engineering, Imperial College London, London, UK
| | - N. Dahmen
- Institute of Geophysics, ETH Zurich, Zurich, Switzerland
| | - P. Davis
- Department of Earth, Planetary, and Space Sciences, University of California, Los Angeles, CA, USA
| | - M. Drilleau
- Institut Supérieur de l’Aéronautique et de l’Espace ISAE-SUPAERO, Toulouse, France
| | - C. M. Dundas
- U.S. Geological Survey, Astrogeology Science Center, Flagstaff, AZ, USA
| | - C. Durán
- Institute of Geophysics, ETH Zurich, Zurich, Switzerland
| | - F. Euchner
- Institute of Geophysics, ETH Zurich, Zurich, Switzerland
| | - R. F. Garcia
- Institut Supérieur de l’Aéronautique et de l’Espace ISAE-SUPAERO, Toulouse, France
| | - M. Golombek
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA
| | - A. Horleston
- School of Earth Sciences, University of Bristol, Bristol, UK
| | - C. Keegan
- Malin Space Science Systems, San Diego, CA, USA
| | - A. Khan
- Institute of Geophysics, ETH Zurich, Zurich, Switzerland
- Physik-Institut, University of Zurich, Zurich, Switzerland
| | - D. Kim
- Institute of Geophysics, ETH Zurich, Zurich, Switzerland
- Department of Geology, University of Maryland, College Park, MD, USA
| | - C. Larmat
- Earth and Environmental Sciences Division, Los Alamos National Laboratory, Los Alamos, NM, USA
| | - R. Lorenz
- Johns Hopkins Applied Physics Laboratory, Laurel, MD, USA
| | - L. Margerin
- Institut de Recherche en Astrophysique et Planétologie, Université Toulouse III Paul Sabatier, CNRS, CNES, Toulouse, France
| | - S. Menina
- Université Paris Cité, Institut de Physique du Globe de Paris, CNRS, Paris, France
| | - M. Panning
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA
| | - C. Pardo
- Université Paris Cité, Institut de Physique du Globe de Paris, CNRS, Paris, France
| | - C. Perrin
- Nantes Université, Université Angers, Le Mans Université, CNRS, UMR 6112, Laboratoire de Planétologie et Géosciences, Nantes, France
| | - W. T. Pike
- Department of Electrical and Electronic Engineering, Imperial College London, London, UK
| | - M. Plasman
- Université Paris Cité, Institut de Physique du Globe de Paris, CNRS, Paris, France
| | - A. Rajšić
- Space Science and Technology Centre, School of Earth and Planetary Sciences, Curtin University, Perth, WA, Australia
| | - L. Rolland
- Université Côte d’Azur, Observatoire de la Côte d’Azur, CNRS, IRD, Géoazur, Valbonne, France
| | - E. Rougier
- Earth and Environmental Sciences Division, Los Alamos National Laboratory, Los Alamos, NM, USA
| | - G. Speth
- Malin Space Science Systems, San Diego, CA, USA
| | - A. Spiga
- Laboratoire de Météorologie Dynamique/IPSL, Sorbonne Université, CNRS, Ecole Normale Supérieure, PSL Research University, Ecole Polytechnique, Paris, France
| | - A. Stott
- Institut Supérieur de l’Aéronautique et de l’Espace ISAE-SUPAERO, Toulouse, France
| | - D. Susko
- Malin Space Science Systems, San Diego, CA, USA
| | - N. A. Teanby
- School of Earth Sciences, University of Bristol, Bristol, UK
| | - A. Valeh
- Malin Space Science Systems, San Diego, CA, USA
| | - A. Werynski
- Malin Space Science Systems, San Diego, CA, USA
| | - N. Wójcicka
- Department of Earth Science and Engineering, Imperial College London, London, UK
| | - G. Zenhäusern
- Institute of Geophysics, ETH Zurich, Zurich, Switzerland
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37
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Inoue K, Fujita T, Yoshioka D, Tonai K, Yanagino Y, Kakuta T, Tadokoro N, Kawamoto N, Yamashita K, Kawamura A, Matsuura R, Kawamura T, Saito T, Kawamura M, Kainuma S, Fukushima S, Toda K, Miyagawa S. Short-Term Outcomes of Magnetically Levitated Left Ventricular Assist Device in Advanced Heart Failure ― The Japanese Cohort ―. Circ J 2022; 86:1961-1967. [DOI: 10.1253/circj.cj-22-0332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Koichi Inoue
- Department of Cardiovascular Surgery, Osaka University Hospital
| | - Tomoyuki Fujita
- Department of Cardiovascular Surgery, National Cerebral and Cardiovascular Center
| | | | - Kohei Tonai
- Department of Cardiovascular Surgery, National Cerebral and Cardiovascular Center
| | - Yusuke Yanagino
- Department of Cardiovascular Surgery, National Cerebral and Cardiovascular Center
| | - Takashi Kakuta
- Department of Cardiovascular Surgery, National Cerebral and Cardiovascular Center
| | - Naoki Tadokoro
- Department of Cardiovascular Surgery, National Cerebral and Cardiovascular Center
| | - Naonori Kawamoto
- Department of Cardiovascular Surgery, National Cerebral and Cardiovascular Center
| | | | - Ai Kawamura
- Department of Cardiovascular Surgery, Osaka University Hospital
| | - Ryohei Matsuura
- Department of Cardiovascular Surgery, Osaka University Hospital
| | - Takuji Kawamura
- Department of Cardiovascular Surgery, Osaka University Hospital
| | - Tetsuya Saito
- Department of Cardiovascular Surgery, Osaka University Hospital
| | | | - Satoshi Kainuma
- Department of Cardiovascular Surgery, National Cerebral and Cardiovascular Center
| | - Satsuki Fukushima
- Department of Cardiovascular Surgery, National Cerebral and Cardiovascular Center
| | - Koichi Toda
- Department of Cardiovascular Surgery, Osaka University Hospital
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38
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Li J, Liu L, Zhang J, Qu X, Kawamura T, Miyagawa S, Sawa Y. Engineered Tissue for Cardiac Regeneration: Current Status and Future Perspectives. Bioengineering (Basel) 2022; 9:605. [PMID: 36354516 PMCID: PMC9688015 DOI: 10.3390/bioengineering9110605] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/12/2022] [Accepted: 10/20/2022] [Indexed: 11/12/2023] Open
Abstract
Heart failure (HF) is the leading cause of death worldwide. The most effective HF treatment is heart transplantation, the use of which is restricted by the limited supply of donor hearts. The human pluripotent stem cell (hPSC), including human embryonic stem cell (hESC) and the induced pluripotent stem cells (hiPSC), could be produced in an infinite manner and differentiated into cardiomyocytes (CMs) with high efficiency. The hPSC-CMs have, thus, offered a promising alternative for heart transplant. In this review, we introduce the tissue-engineering technologies for hPSC-CM, including the materials for cell culture and tissue formation, and the delivery means into the heart. The most recent progress in clinical application of hPSC-CMs is also introduced. In addition, the bottleneck limitations and future perspectives for clinical translation are further discussed.
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Affiliation(s)
- Junjun Li
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Li Liu
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Jingbo Zhang
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Xiang Qu
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Takuji Kawamura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Shigeru Miyagawa
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Yoshiki Sawa
- Cardiovascular Division, Osaka Police Hospital, Tennoji, Osaka 543-0035, Japan
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Maeda S, Kawamura T, Sasaki M, Shimamura K, Shibuya T, Harada A, Honmou O, Sawa Y, Miyagawa S. Intravenous infusion of bone marrow-derived mesenchymal stem cells improves tissue perfusion in a rat hindlimb ischemia model. Sci Rep 2022; 12:16986. [PMID: 36216855 PMCID: PMC9551049 DOI: 10.1038/s41598-022-18485-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 08/12/2022] [Indexed: 12/29/2022] Open
Abstract
Intravenous infusion of stem cells is a minimally invasive cellular delivery method, though a few have been reported in a critical limb-threatening ischemia (CLTI) animal model or patients. In the present study, we hypothesized that intravenous infusion of bone-marrow derived mesenchymal stem cells (MSCs) improves tissue perfusion in a rat hindlimb ischemia model. Hindlimb ischemia was generated in Sprague-Dawley rats by femoral artery removal, then seven days after ischemic induction intravenous infusion of 1 × 106 MSCs (cell group) or vehicle (control group) was performed. As compared with the control, tissue perfusion was significantly increased in the cell group. Histological findings showed that capillary density was significantly increased in the cell group, with infused green fluorescent protein (GFP)-MSCs distributed in the ischemic limb. Furthermore, gene expression of vascular endothelial growth factor (VEGF) was significantly increased in ischemic hindlimb muscle tissues of rats treated with MSC infusion. In conclusion, intravenous infusion of bone-marrow derived MSCs improved tissue perfusion in ischemic hindlimbs through angiogenesis, suggesting that intravenous infusion of MSCs was a promising cell delivery method for treatment of CLTI.
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Affiliation(s)
- Shusaku Maeda
- grid.136593.b0000 0004 0373 3971Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-15 Yamadaoka, Suita, Osaka 565-0871 Japan
| | - Takuji Kawamura
- grid.136593.b0000 0004 0373 3971Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-15 Yamadaoka, Suita, Osaka 565-0871 Japan
| | - Masanori Sasaki
- grid.263171.00000 0001 0691 0855Department of Neural Regenerative Medicine, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo, Hokkaido Japan
| | - Kazuo Shimamura
- grid.136593.b0000 0004 0373 3971Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-15 Yamadaoka, Suita, Osaka 565-0871 Japan
| | - Takashi Shibuya
- grid.136593.b0000 0004 0373 3971Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-15 Yamadaoka, Suita, Osaka 565-0871 Japan
| | - Akima Harada
- grid.136593.b0000 0004 0373 3971Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-15 Yamadaoka, Suita, Osaka 565-0871 Japan
| | - Osamu Honmou
- grid.263171.00000 0001 0691 0855Department of Neural Regenerative Medicine, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo, Hokkaido Japan
| | - Yoshiki Sawa
- grid.136593.b0000 0004 0373 3971Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-15 Yamadaoka, Suita, Osaka 565-0871 Japan
| | - Shigeru Miyagawa
- grid.136593.b0000 0004 0373 3971Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-15 Yamadaoka, Suita, Osaka 565-0871 Japan
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Kawamura T, Saito Y, Tanaka K. Structuring pathologic reports containing Japanese language for integration into an endoscopy database. Dig Endosc 2022; 34:1259. [PMID: 35765764 DOI: 10.1111/den.14392] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 06/26/2022] [Indexed: 01/18/2023]
Affiliation(s)
- Takuji Kawamura
- Department of Gastroenterology, Kyoto Second Red Cross Hospital, Kyoto, Japan
| | - Yutaka Saito
- Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan.,Japan Gastroenterological Endoscopy Society, Tokyo, Japan
| | - Kiyohito Tanaka
- Department of Gastroenterology, Kyoto Second Red Cross Hospital, Kyoto, Japan.,Japan Gastroenterological Endoscopy Society, Tokyo, Japan
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41
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Inoue T, Inoue N, Kawamura T, Uno K. An unusual ileocecal tumor. Oxf Med Case Reports 2022; 2022:omac096. [PMID: 36176948 PMCID: PMC9514109 DOI: 10.1093/omcr/omac096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 03/07/2022] [Accepted: 07/14/2022] [Indexed: 11/14/2022] Open
Abstract
We report the case of diffuse large B-cell lymphoma (DLBCL) with a fistula from the ileum to the cecum. A 57-year-old male came to the hospital complaining of abdominal pain. He underwent an abdominal computed tomography with contrast, which showed full-thickness wall thickening at the ileocecal region. He underwent a lower gastrointestinal endoscopy. No tumor was found at the ileocecal valve, and macroscopic findings were normal. The scope was advanced to the cecum, an additional outpouching was found. The outpouching appeared to be an ileocecal fistula. The diagnosis was DLBCL.
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Affiliation(s)
- Takato Inoue
- Kyoto Second Red Cross Hospital Department of Gastroenterology, , Kyoto, Japan
| | - Naonori Inoue
- Kyoto Second Red Cross Hospital Department of Gastroenterology, , Kyoto, Japan
| | - Takuji Kawamura
- Kyoto Second Red Cross Hospital Department of Gastroenterology, , Kyoto, Japan
| | - Koji Uno
- Kyoto Second Red Cross Hospital Department of Gastroenterology, , Kyoto, Japan
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Miyagawa S, Kainuma S, Kawamura T, Suzuki K, Ito Y, Iseoka H, Ito E, Takeda M, Sasai M, Mochizuki-Oda N, Shimamoto T, Nitta Y, Dohi H, Watabe T, Sakata Y, Toda K, Sawa Y. Case report: Transplantation of human induced pluripotent stem cell-derived cardiomyocyte patches for ischemic cardiomyopathy. Front Cardiovasc Med 2022; 9:950829. [PMID: 36051285 PMCID: PMC9426776 DOI: 10.3389/fcvm.2022.950829] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 08/02/2022] [Indexed: 01/14/2023] Open
Abstract
Despite major therapeutic advances, heart failure, as a non-communicable disease, remains a life-threatening disorder, with 26 million patients worldwide, causing more deaths than cancer. Therefore, novel strategies for the treatment of heart failure continue to be an important clinical need. Based on preclinical studies, allogenic human induced pluripotent stem cell-derived cardiomyocyte (hiPSC-CM) patches have been proposed as a potential therapeutic candidate for heart failure. We report the implantation of allogeneic hiPSC-CM patches in a patient with ischemic cardiomyopathy (ClinicalTrials.gov, #jRCT2053190081). The patches were produced under clinical-grade conditions and displayed cardiogenic phenotypes and safety in vivo (severe immunodeficient mice) without any genetic mutations in cancer-related genes. The patches were then implanted via thoracotomy into the left ventricle epicardium of the patient under immunosuppressive agents. Positron emission tomography and computed tomography confirmed the potential efficacy and did not detect tumorigenesis in either the heart or other organs. The clinical symptoms improved 6 months after surgery, without any major adverse events, suggesting that the patches were well-tolerated. Furthermore, changes in the wall motion in the transplanted site were recovered, suggesting a favorable prognosis and the potential tolerance to exercise. This study is the first report of a successful transplant of hiPSC-CMs for severe ischemic cardiomyopathy.
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Affiliation(s)
- Shigeru Miyagawa
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
- *Correspondence: Shigeru Miyagawa
| | - Satoshi Kainuma
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Takuji Kawamura
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Kota Suzuki
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Yoshito Ito
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Hiroko Iseoka
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Emiko Ito
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Maki Takeda
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Masao Sasai
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Noriko Mochizuki-Oda
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Tomomi Shimamoto
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Yukako Nitta
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Hiromi Dohi
- Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Tadashi Watabe
- Department of Nuclear Medicine and Tracer Kinetics, Osaka University Graduate School of Medicine, Suita, Japan
| | - Yasushi Sakata
- Department of Cardiology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Koichi Toda
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Yoshiki Sawa
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Suita, Japan
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Asakawa R, Ogawa Y, Shimada S, Kawamura T. 548 Purinergic molecules in murine bone marrow-derived mast cells. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Mitsui H, Sunaga T, Kawamura T. LB887 Direct effects of zinc in proliferation and migration of human squamous cell carcinoma cell lines in vitro. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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45
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Sato T, Ogawa Y, Shimada S, Kawamura T. 015 Optimal methods for human skin T-cell analysis. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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46
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Ogawa Y, Muto Y, Shimada S, Kawamura T. 585 The effect of topical 5-azacytidine in irritant and allergic contact dermatitis. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Sekiguchi M, Hotta K, Takeuchi Y, Tanaka S, Yamamoto H, Shinmura K, Harada K, Uraoka T, Hisabe T, Sano Y, Kondo H, Horimatsu T, Kikuchi H, Kawamura T, Nagata S, Yamamoto K, Tajika M, Tsuji S, Kusaka T, Okuyama Y, Yoshida N, Moriyama T, Hasebe A, So S, Kobara H, Kashida H, Miyanaga R, Kato S, Hayashi Y, Sada M, Fukuzawa M, Kato H, Takayama T, Konishi J, Matsushita HO, Narasaka T, Ohata K, Togashi K, Nakamura H, Moriichi K, Oda Y, Kanda N, Kuwai T, Terai S, Sanomura M, Kitamura S, Miyamoto H, Kiriyama S, Mizuno C, Saito Y, Sekine S, Ito S, Nakahira H, Oka S, Hayashi Y, Yoshimura K, Ishikawa H, Matsuda T. Characteristics of colorectal neuroendocrine tumors in patients prospectively enrolled in a Japanese multicenter study: a first report from the C-NET STUDY. J Gastroenterol 2022; 57:547-558. [PMID: 35554678 DOI: 10.1007/s00535-022-01877-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 04/23/2022] [Indexed: 02/04/2023]
Abstract
BACKGROUND This is the first report from a multicenter prospective cohort study of colorectal neuroendocrine tumor (NET), the C-NET STUDY, conducted to assess the long-term outcomes of the enrolled patients. This report aimed to elucidate the clinicopathological features of the enrolled patients and lesions. METHODS Colorectal NET patients aged 20-74 years were consecutively enrolled and followed up at 50 institutions. The baseline characteristics and clinicopathological findings at enrollment and treatment were assessed. RESULTS A total of 495 patients with 500 colorectal NETs were included. The median patient age was 54 years, and 85.3% were asymptomatic. The most frequent lesion location was the lower rectum (88.0%); 99.4% of the lesions were clinically diagnosed to be devoid of metastatic findings, and 95.4% were treated with endoscopic resection. Lesions < 10 mm comprised 87.0% of the total, 96.6% had not invaded the muscularis propria, and 92.6% were classified as WHO NET grade 1. Positive lymphovascular involvement was found in 29.2% of the lesions. Its prevalence was high even in small NETs with immunohistochemical/special staining for pathological assessment (26.4% and 40.9% in lesions sized < 5 mm and 5-9 mm, respectively). Among 70 patients who underwent radical surgery primarily or secondarily, 18 showed positive lymph node metastasis. CONCLUSIONS The characteristics of real-world colorectal NET patients and lesions are elucidated. The high positivity of lymphovascular involvement in small NETs highlights the necessity of assessing the clinical significance of positive lymphovascular involvement based on long-term outcomes, which will be examined in later stages of the C-NET STUDY. TRIAL REGISTRATION NUMBER UMIN000025215.
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Affiliation(s)
- Masau Sekiguchi
- Endoscopy Division, Cancer Screening Center, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan.
| | - Kinichi Hotta
- Division of Endoscopy, Shizuoka Cancer Center, Shizuoka, Japan
| | - Yoji Takeuchi
- Department of Gastrointestinal Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - Shinji Tanaka
- Department of Endoscopy, Hiroshima University Hospital, Hiroshima, Japan
| | - Hironori Yamamoto
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Tochigi, Japan
| | - Kensuke Shinmura
- Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Chiba, Japan
| | - Keita Harada
- Department of Gastroenterology and Hepatology, Okayama University Hospital, Okayama, Japan
| | - Toshio Uraoka
- Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Takashi Hisabe
- Department of Gastroenterology, Fukuoka University Chikushi Hospital, Fukuoka, Japan
| | - Yasushi Sano
- Gastrointestinal Center, Sano Hospital, Hyogo, Japan
| | - Hitoshi Kondo
- Department of Gastroenterology, Tonan Hospital, Hokkaido, Japan
| | - Takahiro Horimatsu
- Institute for Advancement of Clinical and Translational Science, Kyoto University Hospital, Kyoto, Japan
| | - Hidezumi Kikuchi
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, Aomori, Japan
| | - Takuji Kawamura
- Department of Gastroenterology, Kyoto Second Red Cross Hospital, Kyoto, Japan
| | - Shinji Nagata
- Department of Gastroenterology, Hiroshima City Asa Citizens Hospital, Hiroshima, Japan
| | - Katsumi Yamamoto
- Department of Gastroenterology, JCHO Osaka Hospital, Osaka, Japan
| | - Masahiro Tajika
- Department of Endoscopy, Aichi Cancer Center Hospital, Aichi, Japan
| | - Shigetsugu Tsuji
- Department of Gastroenterology, Ishikawa Prefectural Central Hospital, Ishikawa, Japan
| | - Toshihiro Kusaka
- Department of Gastroenterology and Hepatology, Kyoto Katsura Hospital, Kyoto, Japan
| | - Yusuke Okuyama
- Department of Gastroenterology, Kyoto First Red Cross Hospital, Kyoto, Japan
| | - Naohisa Yoshida
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tomohiko Moriyama
- International Medical Department, Kyushu University Hospital, Fukuoka, Japan
| | - Aki Hasebe
- Department of Gastroenterology, Shikoku Cancer Center, Ehime, Japan
| | - Suketo So
- Department of Gastroenterology, Tobata Kyoritsu Hospital, Fukuoka, Japan
| | - Hideki Kobara
- Department of Gastroenterology and Neurology, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - Hiroshi Kashida
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, Osaka, Japan
| | - Ryoichi Miyanaga
- Department of Gastroenterology, National Hospital Organization Tokyo Medical Center, Tokyo, Japan
| | - Sosuke Kato
- Department of Gastroenterology, NTT Medical Center, Sapporo, Hokkaido, Japan
| | - Yoshito Hayashi
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Miwa Sada
- Department of Gastroenterology, Kitasato University Hospital, Kanagawa, Japan
| | - Masakatsu Fukuzawa
- Department of Gastroenterology and Hepatology, Tokyo Medical University Hospital, Tokyo, Japan
| | - Hiroyuki Kato
- Department of Clinical Laboratory and Endoscopy, Tokyo Women's Medical University Adachi Medical Center, Tokyo, Japan
| | - Tetsuji Takayama
- Department of Gastroenterology and Oncology, Graduate School of Biomedical Sciences, Tokushima University, Tokushima, Japan
| | - Jun Konishi
- Department of Gastroenterology, Tochigi Cancer Center, Tochigi, Japan
| | | | - Toshiaki Narasaka
- Division of Endoscopic Center, University of Tsukuba Hospital, Ibaraki, Japan
| | - Ken Ohata
- Department of Gastrointestinal Endoscopy, NTT Medical Center Tokyo, Tokyo, Japan
| | - Kazutomo Togashi
- Department of Coloproctology, Aizu Medical Center, Fukushima Medical University, Fukushima, Japan
| | | | - Kentaro Moriichi
- Gastroenterology and Endoscopy, Division of Metabolism and Biosystemic Science, Gastroenterology, and Hematology/Oncology, Department of Medicine, Asahikawa Medical University, Hokkaido, Japan
| | - Yasushi Oda
- Oda GI Endoscopy and Gastroenterology Clinic, Kumamoto, Japan
| | - Naoki Kanda
- Department of Gastroenterology and Hepatology, Takatsuki Red Cross Hospital, Osaka, Japan
| | - Toshio Kuwai
- Department of Gastroenterology, National Hospital Organization Kure Medical Center and Chugoku Cancer Center, Hiroshima, Japan
| | - Shuji Terai
- Division of Gastroenterology and Hepatology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Makoto Sanomura
- Department of Gastroenterology, Hokusetsu General Hospital, Osaka, Japan
| | - Shinji Kitamura
- Department of Gastroenterology, Sakai City Medical Center, Osaka, Japan
| | - Hayato Miyamoto
- Department of Gastroenterology, Hanwasumiyoshi General Hospital, Osaka, Japan
| | | | - Chiemi Mizuno
- Department of Gastroenterology and Hepatology, Saiseikai Suita Hospital, Osaka, Japan
| | - Yutaka Saito
- Endoscopy Division, National Cancer Center Hospital, Tokyo, Japan
| | - Shigeki Sekine
- Division of Diagnostic Pathology, National Cancer Center Hospital, Tokyo, Japan
| | - Sayo Ito
- Division of Endoscopy, Shizuoka Cancer Center, Shizuoka, Japan
| | - Hiroko Nakahira
- Department of Gastrointestinal Oncology, Osaka International Cancer Institute, Osaka, Japan
| | - Shiro Oka
- Department of Endoscopy, Hiroshima University Hospital, Hiroshima, Japan
| | - Yoshikazu Hayashi
- Department of Medicine, Division of Gastroenterology, Jichi Medical University, Tochigi, Japan
| | - Kenichi Yoshimura
- Department of Biostatistics, Medical Center for Translational and Clinical Research, Hiroshima University Hospital, Hiroshima, Japan
| | - Hideki Ishikawa
- Department of Molecular-Targeting Prevention, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Takahisa Matsuda
- Endoscopy Division, Cancer Screening Center, National Cancer Center Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo, 104-0045, Japan.,Division of Gastroenterology and Hepatology, Toho University Omori Medical Center, Tokyo, Japan
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Arichi A, Yorimitu T, Omura N, Ito K, Komine H, Kudo Y, Shimizu Y, Kawamura T, Ohara M, Sasaki H, Honma S, Hasui M, Takemura Y, Teraoka K, Ishikawa T. P-205 Blastocyst derived from oocytes with smooth endoplasmic reticulum aggregates (SERa) has similar clinical and perinatal outcomes with those of oocytes without SER. Hum Reprod 2022. [DOI: 10.1093/humrep/deac107.198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Study question
This study was to investigate effect of SERa on the fertilization rate, embryonic development after ICSI, and clinical and perinatal outcomes after single blastocyst transfer.
Summary answer
SERa (+) derived embryo can be selected as embryos for transfer when no available SERa (-) derived embryos.
What is known already
Based on findings that the risk of congenital abnormalities in the newborn is higher in ovum with SERa in the cytoplasm, the Istanbul consensus workshop at the 2011 meeting of the ESHRE recommended against fertilizing ovum with SERa due to these risks. However, there have been several reports of healthy infants born from embryos derived from SERa, suggesting that, while more long-term follow-up is necessary, healthy births are possible from such embryos. In 2017, the 2011 recommendations were reviewed in the Alpha/ESHRE consensus (Vienna), which said the approach should be determined on a case-by-case basis.
Study design, size, duration
We retrospectively investigated 23,007 oocytes which was retrieved between January 2016 and March 2020. Of these, 1,038 oocytes (4.5%) with visible SERa comprised SERa (+), while 21,969 oocytes (95.5%) without SERa comprised SERa (-).
Participants/materials, setting, methods
SERa were observed under the microscopy after denudation. The rate of fertilization, good-quality day-3 embryos, good-quality day-5 blastocysts, and day-5, 6 or 7 blastocysts were evaluated for both groups. We also compared the rate of clinical pregnancy, live birth, miscarriage, and birth defects in single blastocyst transfer between SERa (+) derived 114 blastocysts and SERa (-) derived 6,290 blastocysts from January 2016 and December 2018.
Main results and the role of chance
The results are shown. 2PN fertilization rate outcomes after ICSI (SERa(-) eggs vs. SERa(+)eggs),81.4%(17,873/21,969) vs.79.4% (823/1,038),and good-quality day3 rate was 61.1%(10,927/17,873)vs.60.9% (501/823) which was not significantly different. Good-quality day5 blastocyst rate was 46.5% (7,876/16,955) vs. 39.8%(304/763), and day 5 blastocyst success rate was 60.8% (10,317/16,955) vs.54.3% (414/763), which were both significantly lower with SERa(+). (P < 0.001) The day 6 blastocyst success rate was 69.9% (11,849/16,955) vs. 65.5% (500/763) (P = 0.01), and the day 7 blastocyst success rate was 70.9% (12,024/16,955) vs. 67.5% (515/763) (P = 0.04), which were all significantly lower with SERa(+).The clinical pregnancy rate was 39.4% (2,481/6,290) vs. 35.1% (40/114), the live birth rate was 27.7% (1,745/6,290) vs. 26.3% (30/114), and the miscarriage rate was 27.5% (683/2,481) vs. 20.0% (8/40) and the congenital abnormality rate was 1.6% (29/1,757) vs. 0% (0/30) for SERa(-) embryos and SERa(+) embryos, respectively, which were not significantly different. Blastocyst derived from oocytes with SERa has similar clinical and perinatal outcomes with those of oocytes without SERa. Significant differences were examined using the chi-squared test, with p < 0.05, indicating a significant difference.
Limitations, reasons for caution
Embryos derived SERa (+) were transferred when the patient did not want any more oocytes retrievals, no embryos derived SERa (-) were available, and only if the couple desired embryo transfer after the problems associated with SERa (+) embryos were fully explained.
Wider implications of the findings
To the best of our knowledge, this study is the largest number of live births investigating the outcome of SERa (+) derived embryos. SERa (+) derived embryo can be selected as embryos for transfer when no available SERa (-) derived embryos.
Trial registration number
Not Applicable
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Affiliation(s)
- A Arichi
- Denentoshi Ladies Clinic, ART labo , yokohama, Japan
| | - T Yorimitu
- Denentoshi Ladies Clinic, reproductive medicine , yokohama, Japan
| | - N Omura
- Denentoshi Ladies Clinic, ART labo , yokohama, Japan
| | - K Ito
- Denentoshi Ladies Clinic, ART labo , yokohama, Japan
| | - H Komine
- Denentoshi Ladies Clinic, ART labo , yokohama, Japan
| | - Y Kudo
- Denentoshi Ladies Clinic, ART labo , yokohama, Japan
| | - Y Shimizu
- Denentoshi Ladies Clinic, reproductive medicine , yokohama, Japan
| | - T Kawamura
- Denentoshi Ladies Clinic, reproductive medicine , yokohama, Japan
| | - M Ohara
- Denentoshi Ladies Clinic, reproductive medicine , yokohama, Japan
| | - H Sasaki
- Denentoshi Ladies Clinic, reproductive medicine , yokohama, Japan
| | - S Honma
- Denentoshi Ladies Clinic, reproductive medicine , yokohama, Japan
| | - M Hasui
- Denentoshi Ladies Clinic, reproductive medicine , yokohama, Japan
| | - Y Takemura
- Denentoshi Ladies Clinic, reproductive medicine , yokohama, Japan
| | - K Teraoka
- Denentoshi Ladies Clinic, reproductive medicine , yokohama, Japan
| | - T Ishikawa
- tokyo medical and dental univ, Perinatal and maternal medicine , tokyo, Japan
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Mandai K, Kawamura T, Uno K, Yasuda K. Endoscopic transpapillary gallbladder stenting for acute cholecystitis using a novel integrated inside biliary stent and nasobiliary drainage catheter system. Endoscopy 2022; 54:E266-E267. [PMID: 34144617 DOI: 10.1055/a-1512-8024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Koichiro Mandai
- Department of Gastroenterology, Kyoto Second Red Cross Hospital, Kyoto, Japan
| | - Takuji Kawamura
- Department of Gastroenterology, Kyoto Second Red Cross Hospital, Kyoto, Japan
| | - Koji Uno
- Department of Gastroenterology, Kyoto Second Red Cross Hospital, Kyoto, Japan
| | - Kenjiro Yasuda
- Department of Gastroenterology, Kyoto Second Red Cross Hospital, Kyoto, Japan
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Yamasaki Y, Uedo N, Akamatsu T, Kagawa T, Higashi R, Dohi O, Furukawa M, Takahashi Y, Inoue T, Tanaka S, Takenaka R, Iguchi M, Kawamura T, Tsuzuki T, Yamasaki T, Yamashina T, Nasu J, Mannami T, Yamauchi A, Matsueda K, Aizawa S, Mitsuhashi T, Okada H. Nonrecurrence Rate of Underwater EMR for ≤20-mm Nonampullary Duodenal Adenomas: A Multicenter Prospective Study (D-UEMR Study). Clin Gastroenterol Hepatol 2022; 20:1010-1018.e3. [PMID: 34217879 DOI: 10.1016/j.cgh.2021.06.043] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 06/25/2021] [Indexed: 12/24/2022]
Abstract
BACKGROUND AND AIMS Endoscopic resection of nonampullary duodenal adenoma is often challenging, and its technique has not yet been standardized. To overcome the practical difficulty of conventional endoscopic mucosal resection, underwater endoscopic mucosal resection (UEMR) was recently developed; therefore, we investigated the effectiveness and safety of UEMR for nonampullary duodenal adenoma. METHODS A multicenter, prospective cohort study was conducted at 21 institutions in Japan. We enrolled patients with no more than 2 nonampullary duodenal adenomas ≤20 mm in size, who were planned to undergo UEMR. After UEMR, follow-up endoscopies were scheduled at 2 and 12 months after the procedure, and biopsy specimens were taken from the post-UEMR scars. The primary endpoint was the proportion of patients with histologically proven nonrecurrence at follow-up endoscopy and biopsy. RESULTS A total of 155 patients with 166 lesions underwent UEMR. One patient with a non-neoplastic lesion in the resected specimen and 10 patients with 10 lesions who were lost to follow-up were excluded. Finally, 144 patients with 155 lesions who received all follow-up endoscopies were analyzed for the primary endpoint. The proportion of patients with proven nonrecurrence was 97.2% (n = 140 of 144; 95% confidence interval, 92.8%-99.1%) which exceeded the predefined threshold value (92%). Two cases of delayed bleeding (1.2%) occurred and they were successfully managed by clips. All recurrences were successfully treated by additional endoscopic treatment. CONCLUSIONS This multicenter, prospective cohort study demonstrated effectiveness and safety of UEMR for nonampullary duodenal adenomas ≤20 mm in size. (University Hospital Medical Network Clinical Trials Registry, Number: UMIN000030414).
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Affiliation(s)
- Yasushi Yamasaki
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
| | - Noriya Uedo
- Department of Gastrointestinal Oncology, Osaka International Cancer Institute, Osaka, Japan.
| | - Takuji Akamatsu
- Department of Gastroenterology and Hepatology, Japanese Red Cross Society Wakayama Medical Center, Wakayama, Japan
| | - Tomo Kagawa
- Department of Gastroenterology, Kagawa Prefectural Central Hospital, Takamatsu, Japan
| | - Reiji Higashi
- Department of Internal Medicine, Hiroshima City Hiroshima Citizens Hospital, Hiroshima, Japan
| | - Osamu Dohi
- Department of Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Masanori Furukawa
- Division of Endoscopy, Nara Medical University Hospital, Nara, Japan
| | - Yu Takahashi
- Third Department of Internal Medicine, Kansai Medical University, Osaka, Japan
| | - Takuya Inoue
- Department of Gastroenterology and Hepatology, Osaka General Medical Center, Osaka, Japan
| | - Shouichi Tanaka
- Department of Gastroenterology, National Hospital Organization Iwakuni Clinical Center, Iwakuni, Japan
| | - Ryuta Takenaka
- Department of Internal Medicine, Tsuyama Chuo Hospital, Tsuyama, Japan
| | - Mikitaka Iguchi
- Second Department of Internal Medicine, Wakayama Medical University, Wakayama, Japan
| | - Takuji Kawamura
- Department of Gastroenterology, Kyoto Second Red Cross Hospital, Kyoto, Japan
| | - Takao Tsuzuki
- Department of Internal Medicine, Japanese Red Cross Society Himeji Hospital, Himeji, Japan
| | - Tomoaki Yamasaki
- Department of Gastroenterology, Osaka City General Hospital, Osaka, Japan
| | - Takeshi Yamashina
- Department of Gastroenterology and Hepatology, Osaka Red Cross Hospital, Osaka, Japan
| | - Junichiro Nasu
- Department of Internal Medicine, Okayama Saiseikai General Hospital, Okayama, Japan
| | - Tomohiko Mannami
- Department of Gastroenterology, National Hospital Organization Okayama Medical Center, Okayama, Japan
| | - Atsushi Yamauchi
- Department of Gastroenterology and Hepatology, Tazuke Kofukai Medical Research Institute, Kitano Hospital, Osaka, Japan
| | - Kazuhiro Matsueda
- Department of Gastroenterology and Hepatology, Kurashiki Central Hospital, Kurashiki, Japan
| | - Shigeyuki Aizawa
- Department of Gastroenterology, Nara Prefecture Seiwa Medical Center, Nara, Japan
| | - Toshiharu Mitsuhashi
- Center for Innovative Clinical Medicine, Okayama University Hospital, Okayama, Japan
| | - Hiroyuki Okada
- Department of Gastroenterology, Okayama University Hospital, Okayama, Japan
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