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Hoshikuma Y, Shimizu T, Toyota S, Murakami T, Achiha T, Takahara M, Touhara K, Hagioka T, Kobayashi M, Kishima H. Statistical Analysis of the Factors that Affect Postoperative Length of Hospital Stay after Unruptured Intracranial Aneurysm Treatment in Japan: A 20-year Nationwide Multicenter Study. Neurol Med Chir (Tokyo) 2024; 64:154-159. [PMID: 38355130 DOI: 10.2176/jns-nmc.2023-0142] [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] [Indexed: 02/16/2024] Open
Abstract
Treatment strategies for unruptured intracranial aneurysms (UIAs) should be carefully considered with reference to rupture and complication rates. It is also important to minimize the length of hospital stay (LOS) and to ensure a high quality of medical care. In this study, we aim to clarify the factors that affect the LOS of patients treated for UIAs using the Inpatient Clinico-Occupational Database of the Rosai Hospital Group (ICOD-R). This was a nationwide-multicenter study based on ICOD-R data from 2000 to 2019. Patients diagnosed with UIAs who were treated with clipping or coiling were included in the study. Multivariate analysis was performed to identify the factors affecting LOS. LOS was also compared between groups classified by surgical procedure or treatment period. We identified 3294 patients on the database who underwent clipping or coiling of UIAs during the study period. Multivariate analysis revealed hospital admission during the early 2000s and the late 2010s, age, and treating institution to be significantly correlated with LOS (p < 0.05). There was a significant difference between the mean LOS of the clipping group (20.3 days) and the coiling group (9.65 days) (p < 0.001). Compared by treatment period, LOS significantly shortened over time. Our results suggest that the type of treatment, time of treatment, patient age, and the treating institution affect postoperative LOS for UIAs. Although coiling was found to lead to a lower average LOS than clipping, treatment selection should take the characteristics of each patient's aneurysm into consideration.
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Michitsuji T, Fukui S, Morimoto S, Endo Y, Nishino A, Nishihata S, Tsuji Y, Shimizu T, Umeda M, Sumiyoshi R, Koga T, Iwamoto N, Origuchi T, Ueki Y, Yoshitama T, Eiraku N, Matsuoka N, Okada A, Fujikawa K, Ohtsubo H, Takaoka H, Hamada H, Tsuru T, Nawata M, Arinobu Y, Hidaka T, Tada Y, Kawakami A, Kawashiri SY. Clinical and ultrasound features of difficult-to-treat rheumatoid arthritis: A multicenter RA ultrasound cohort study. Scand J Rheumatol 2024; 53:123-129. [PMID: 38085537 DOI: 10.1080/03009742.2023.2277542] [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] [Received: 06/16/2023] [Accepted: 10/27/2023] [Indexed: 02/27/2024]
Abstract
OBJECTIVE The optimal strategy for difficult-to-treat (D2T) rheumatoid arthritis (RA) has not been identified, and the ultrasound characteristics of D2T RA have not been reported. We investigated the clinical characteristics and factors contributing to the outcome in D2T RA in a multicentre RA ultrasound observational cohort. METHOD We reviewed 307 Japanese patients diagnosed with RA who underwent treatment with biological and targeted synthetic disease-modifying anti-rheumatic drugs (b/tsDMARDs). We compared the differences in patient characteristics between the D2T RA and non-D2T RA groups. We examined the factors contributing to a good response [defined as b/tsDMARD continuation and Clinical Disease Activity Index (CDAI) ≤ 10 at 12 months] in the D2T RA patient group. RESULTS Forty-three patients (14%) were categorized as D2T RA and the remaining 264 (86%) as non-D2T RA at baseline. The grey-scale (GS) score, disease duration, and CDAI at the initiation of treatment were significantly higher in the D2T RA group than in the non-D2T RA group. In contrast, the power Doppler (PD) score was not significantly different between the two groups. Of the 43 D2T RA patients, 20 achieved a good response. The introduction of CTLA4-Ig (n = 5) was significantly associated with a good response in analysis based on inverse probability weighting with propensity score. GS and PD scores at baseline were not significantly associated with therapeutic response at 12 months in D2T RA patients. CONCLUSIONS Patients with D2T RA had high clinical and ultrasound activity and poor responses to treatment with b/tsDMARDs. CTLA4-Ig was associated with a good response at 12 months in D2T RA patients.
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Affiliation(s)
- T Michitsuji
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - S Fukui
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - S Morimoto
- Innovation Platform & Office for Precision Medicine, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan
| | - Y Endo
- Kyushu Multicenter Rheumatoid Arthritis Ultrasound Prospective Observational Cohort Study Group, Kyushu, Japan
| | - A Nishino
- Kyushu Multicenter Rheumatoid Arthritis Ultrasound Prospective Observational Cohort Study Group, Kyushu, Japan
| | - S Nishihata
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Y Tsuji
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - T Shimizu
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - M Umeda
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - R Sumiyoshi
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - T Koga
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - N Iwamoto
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - T Origuchi
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Y Ueki
- Kyushu Multicenter Rheumatoid Arthritis Ultrasound Prospective Observational Cohort Study Group, Kyushu, Japan
| | - T Yoshitama
- Kyushu Multicenter Rheumatoid Arthritis Ultrasound Prospective Observational Cohort Study Group, Kyushu, Japan
| | - N Eiraku
- Kyushu Multicenter Rheumatoid Arthritis Ultrasound Prospective Observational Cohort Study Group, Kyushu, Japan
| | - N Matsuoka
- Kyushu Multicenter Rheumatoid Arthritis Ultrasound Prospective Observational Cohort Study Group, Kyushu, Japan
| | - A Okada
- Kyushu Multicenter Rheumatoid Arthritis Ultrasound Prospective Observational Cohort Study Group, Kyushu, Japan
| | - K Fujikawa
- Kyushu Multicenter Rheumatoid Arthritis Ultrasound Prospective Observational Cohort Study Group, Kyushu, Japan
| | - H Ohtsubo
- Kyushu Multicenter Rheumatoid Arthritis Ultrasound Prospective Observational Cohort Study Group, Kyushu, Japan
| | - H Takaoka
- Kyushu Multicenter Rheumatoid Arthritis Ultrasound Prospective Observational Cohort Study Group, Kyushu, Japan
| | - H Hamada
- Kyushu Multicenter Rheumatoid Arthritis Ultrasound Prospective Observational Cohort Study Group, Kyushu, Japan
| | - T Tsuru
- Kyushu Multicenter Rheumatoid Arthritis Ultrasound Prospective Observational Cohort Study Group, Kyushu, Japan
| | - M Nawata
- Kyushu Multicenter Rheumatoid Arthritis Ultrasound Prospective Observational Cohort Study Group, Kyushu, Japan
| | - Y Arinobu
- Kyushu Multicenter Rheumatoid Arthritis Ultrasound Prospective Observational Cohort Study Group, Kyushu, Japan
| | - T Hidaka
- Kyushu Multicenter Rheumatoid Arthritis Ultrasound Prospective Observational Cohort Study Group, Kyushu, Japan
| | - Y Tada
- Kyushu Multicenter Rheumatoid Arthritis Ultrasound Prospective Observational Cohort Study Group, Kyushu, Japan
| | - A Kawakami
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - S-Y Kawashiri
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
- Center for Collaborative Medical Education and Development, Nagasaki University Institute of Biomedical Sciences, Nagasaki, Japan
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Shimizu S, Nakayama M, Nguyen CT, Ishigaki H, Kitagawa Y, Yasui F, Yagi Y, Kusayanagi T, Kohara M, Itoh Y, Tojima I, Kouzaki H, Shimizu T. SARS-CoV-2 induces inflammation and intracranial infection through the olfactory epithelium-olfactory bulb pathway in non-human primates. J Neuroimmunol 2024; 387:578288. [PMID: 38237527 DOI: 10.1016/j.jneuroim.2024.578288] [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: 10/15/2023] [Revised: 12/17/2023] [Accepted: 01/06/2024] [Indexed: 02/12/2024]
Abstract
We examined the histopathological changes in the olfactory mucosa of cynomolgus and rhesus macaque models of SARS-CoV-2 infection. SARS-CoV-2 infection induced severe inflammatory changes in the olfactory mucosa. A major histocompatibility complex (MHC) class II molecule, HLA-DR was expressed in macrophage and supporting cells, and melanocytes were increased in olfactory mucosa. Supporting cells and olfactory neurons were infected, and SARS-CoV-2 N protein was detected in the axons of olfactory neurons and in olfactory bulbs. Viral RNA was detected in olfactory bulbs and brain tissues. The olfactory epithelium-olfactory bulb pathway may be important as a route for intracranial infection by SARS-CoV-2.
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Affiliation(s)
- Shino Shimizu
- Department of Otorhinolaryngology-Head and Neck Surgery, Shiga University of Medical Science, Otsu, Shiga, Japan.
| | - Misako Nakayama
- Division of Pathogenesis and Disease Regulation, Department of Pathology, Shiga University of Medical Science, Otsu, Japan
| | - Cong Thanh Nguyen
- Division of Pathogenesis and Disease Regulation, Department of Pathology, Shiga University of Medical Science, Otsu, Japan
| | - Hirohito Ishigaki
- Division of Pathogenesis and Disease Regulation, Department of Pathology, Shiga University of Medical Science, Otsu, Japan
| | - Yoshinori Kitagawa
- Division of Microbiology and Infectious Disease, Department of Pathology, Shiga University of Medical Science, Otsu, Japan
| | - Fumihiko Yasui
- Department of Microbiology and Cell Biology, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | | | | | - Michinori Kohara
- Department of Microbiology and Cell Biology, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Yasushi Itoh
- Division of Pathogenesis and Disease Regulation, Department of Pathology, Shiga University of Medical Science, Otsu, Japan
| | - Ichiro Tojima
- Department of Otorhinolaryngology-Head and Neck Surgery, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Hideaki Kouzaki
- Department of Otorhinolaryngology-Head and Neck Surgery, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Takeshi Shimizu
- Department of Otorhinolaryngology-Head and Neck Surgery, Shiga University of Medical Science, Otsu, Shiga, Japan
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Tsukaguchi Y, Shinoda K, Noda Y, Hatta Y, Tsubouchi K, Shokura N, Nakamura F, Kimura-Suda H, Yoshikawa H, Shimizu T, Tanifuji N. Solvent-Free Reaction for Unsymmetrical Organodisulfides with High Purity and Application as Cathode-Active Materials. Materials (Basel) 2024; 17:699. [PMID: 38591987 PMCID: PMC10856588 DOI: 10.3390/ma17030699] [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] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 01/13/2024] [Accepted: 01/19/2024] [Indexed: 04/10/2024]
Abstract
Unsymmetrical disulfides, in which different organic groups are bonded to disulfide bonds, have been synthesized by cross-coupling reactions using thiols as substrates. However, due to the low-binding energy of unsymmetrical disulfides, its disproportionation occurs based on the side reactions with nucleophilic thiols, resulting in the impurity of symmetric disulfides. In this study, we developed a solvent-free synthesis method for unsymmetrical disulfides using thiosulfonates, thiols, and a base. This synthetic method enabled us to obtain highly pure diaryl-substituted unsymmetrical disulfides with particularly low-binding energy without control over the nucleophilicity and elimination properties of the substrate. Furthermore, it was observed that the disproportionation of unsymmetrical disulfides occurred in the solvent. This means that solvent-free condition is one of the factors to obtain unsymmetrical disulfides. As a new application of unsymmetrical disulfides, we applied unsymmetrical disulfides to cathode active materials of lithium batteries based on the reversible multi-electron redox activity of S-S bonds. The batteries using unsymmetrical disulfide cathode-active materials with a carbon nanotube exhibited initial capacities of 127 and 158 Ah/kg, equal to 42 and 53% of their theoretical ones. We demonstrated that unsymmetrical disulfides could be used as cathode-active materials for rechargeable batteries.
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Affiliation(s)
- Yuta Tsukaguchi
- Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College, 4448 Hikona-cho, Yonago 683-8502, Japan (Y.N.)
| | - Kazuki Shinoda
- Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College, 4448 Hikona-cho, Yonago 683-8502, Japan (Y.N.)
| | - Yusei Noda
- Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College, 4448 Hikona-cho, Yonago 683-8502, Japan (Y.N.)
| | - Yui Hatta
- Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College, 4448 Hikona-cho, Yonago 683-8502, Japan (Y.N.)
| | - Kentaro Tsubouchi
- Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College, 4448 Hikona-cho, Yonago 683-8502, Japan (Y.N.)
| | - Naoko Shokura
- Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College, 4448 Hikona-cho, Yonago 683-8502, Japan (Y.N.)
| | - Fumiya Nakamura
- Chitose Institute of Science and Technology, 758-65 Bibi, Chitose 066-8655, Japan
| | - Hiromi Kimura-Suda
- Chitose Institute of Science and Technology, 758-65 Bibi, Chitose 066-8655, Japan
| | - Hirofumi Yoshikawa
- Department of Material Science, School of Engineering, Kwansei Gakuin University, Gakuen 2-1, Sanda 669-1337, Japan
| | - Takeshi Shimizu
- Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College, 4448 Hikona-cho, Yonago 683-8502, Japan (Y.N.)
| | - Naoki Tanifuji
- Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College, 4448 Hikona-cho, Yonago 683-8502, Japan (Y.N.)
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Tawara S, Miyazaki T, Kiyota R, Maegawa Y, Shimizu T, Yamai T, Kawai S, Inoue T, Komatsu H, Tomokuni A, Motoori M, Yakushijin T. Comparison of percutaneous ablation and hepatectomy for liver metastasis: A single center retrospective study. Cancer Med 2024; 13:e6957. [PMID: 38379325 PMCID: PMC10831916 DOI: 10.1002/cam4.6957] [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: 10/11/2023] [Revised: 12/18/2023] [Accepted: 01/12/2024] [Indexed: 02/22/2024] Open
Abstract
AIM To investigate the current treatment for liver metastasis and clarify the indications for percutaneous thermal ablation for liver metastasis. METHODS Ninety-two patients were enrolled and retrospectively analyzed. The patients underwent hepatectomy and/or percutaneous thermal ablation for liver metastases between January 2012 and December 2018. Twenty-six patients who underwent ablation treatment and seven patients who underwent both ablation and hepatectomy were included in the ablation treatment group (group A). We compared these patients with 59 patients who underwent hepatectomy only (group H). Subgroup analyses were performed between ablation (group AC) for colorectal liver metastasis and hepatectomy (group HC) for colorectal liver metastasis in 17 and 53 patients, respectively. RESULTS The percentage of liver metastases other than colorectal cancer in group A was higher than that in the group H. Maximum tumor size in group A was significantly smaller than that in group H. Similarly, the patients in group AC were significantly older and demonstrated higher total bilirubin, lower serum albumin, and lower platelet counts than those in group HC. Overall survival was poorer in the AC group than that in the HC group. However, no differences were observed at metastasis ≤2 cm in size. CONCLUSIONS Percutaneous thermal ablation was performed for many cancer types than hepatectomy. It is performed in elderly patients. We suggested that ablation for colorectal liver metastasis sized ≤2 cm is a suitable indication.
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Affiliation(s)
- Seiichi Tawara
- Department of Gastroenterology and HepatologyOsaka General Medical CenterOsakaJapan
| | - Tetsuro Miyazaki
- Department of Gastroenterology and HepatologyOsaka General Medical CenterOsakaJapan
| | - Ryosuke Kiyota
- Department of Gastroenterology and HepatologyOsaka General Medical CenterOsakaJapan
| | - Yuki Maegawa
- Department of Gastroenterology and HepatologyOsaka General Medical CenterOsakaJapan
| | - Takeshi Shimizu
- Department of Gastroenterology and HepatologyOsaka General Medical CenterOsakaJapan
| | - Takuo Yamai
- Department of Gastroenterology and HepatologyOsaka General Medical CenterOsakaJapan
| | - Shoichiro Kawai
- Department of Gastroenterology and HepatologyOsaka General Medical CenterOsakaJapan
| | - Takuya Inoue
- Department of Gastroenterology and HepatologyOsaka General Medical CenterOsakaJapan
| | - Hisateru Komatsu
- Department of Gastrointestinal SurgeryOsaka General Medical CenterOsakaJapan
| | - Akira Tomokuni
- Department of Gastrointestinal SurgeryOsaka General Medical CenterOsakaJapan
| | - Masaaki Motoori
- Department of Gastrointestinal SurgeryOsaka General Medical CenterOsakaJapan
| | - Takayuki Yakushijin
- Department of Gastroenterology and HepatologyOsaka General Medical CenterOsakaJapan
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Murao T, Kouzaki H, Arai H, Matsumoto K, Nakamura K, Kawakita K, Tojima I, Shimizu S, Yuta A, Shimizu T. Increase in the prevalence of follicular regulatory T cells correlates with clinical efficacy of sublingual immunotherapy with house dust mites. Int Forum Allergy Rhinol 2024; 14:57-67. [PMID: 37345377 DOI: 10.1002/alr.23221] [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: 01/21/2023] [Revised: 06/02/2023] [Accepted: 06/17/2023] [Indexed: 06/23/2023]
Abstract
BACKGROUND Allergic rhinitis (AR) impairs quality of life and affects nearly 40% of the Japanese population. Sublingual immunotherapy (SLIT) is the disease-modifying treatment for AR, but requires the selection of a biomarker associate with clinical efficacy in patients with AR who are treated with SLIT. The present study sought to examine objective biomarkers used for assessing the clinical efficacy of SLIT. METHODS The authors examined the effects of 1 year of SLIT treatment with house dust mites (HDMs) using peripheral blood mononuclear cells (PBMCs) and serum from patients with AR. The prevalences of follicular regulatory T (Tfr), type 2 follicular helper T (Tfh2), type 2 helper T (Th2), conventional regulatory T (Treg), and type 1 regulatory T (Tr1) cells were examined by flow cytometry. Serum concentrations of HDM-specific IgA, IgE, and IgG4 antibodies, and HDM-induced production of interleukin (IL) 5 and IL-10 from cultured PBMCs were evaluated by enzyme-linked immunosorbent assay. RESULTS Following 1 year of SLIT, the prevalences of Tfr, conventional Treg, and Tr1 cells were significantly increased, whereas that of Th2 cells and Tfh2 cells were significantly decreased; the serum concentration of HDM-specific IgG4 was significantly increased; and HDM-induced production of IL-5 from PBMCs was significantly decreased, while that of IL-10 was significantly increased. The increase in the prevalence of Tfr cells after SLIT correlated positively with the improvement of clinical symptom scores. CONCLUSION An increase in Tfr cells may play an important role in SLIT, and may be a useful indicator for the clinical efficacy of SLIT.
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Affiliation(s)
- Takuya Murao
- Department of Otorhinolaryngology-Head and Neck Surgery, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Hideaki Kouzaki
- Department of Otorhinolaryngology-Head and Neck Surgery, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Hiroyuki Arai
- Department of Otorhinolaryngology-Head and Neck Surgery, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Koji Matsumoto
- Department of Otorhinolaryngology-Head and Neck Surgery, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Keigo Nakamura
- Department of Otorhinolaryngology-Head and Neck Surgery, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Kento Kawakita
- Department of Otorhinolaryngology-Head and Neck Surgery, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Ichiro Tojima
- Department of Otorhinolaryngology-Head and Neck Surgery, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Shino Shimizu
- Department of Otorhinolaryngology-Head and Neck Surgery, Shiga University of Medical Science, Otsu, Shiga, Japan
| | | | - Takeshi Shimizu
- Department of Otorhinolaryngology-Head and Neck Surgery, Shiga University of Medical Science, Otsu, Shiga, Japan
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Isomatsu D, Sato A, Muto Y, Sato Y, Shimizu T, Misaka T, Kaneshiro T, Oikawa M, Kobayashi A, Yoshihisa A, Yamaki T, Kunii H, Nakazato K, Ishida T, Sekino H, Fukushima K, Ito H, Takeishi Y. Predictive Value of Aortic Valve Calcium Volume Measured by Computed Tomography for Paravalvular Leakage After Transcatheter Aortic Valve Implantation. Int Heart J 2024; 65:63-70. [PMID: 38296581 DOI: 10.1536/ihj.23-298] [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] [Indexed: 02/07/2024]
Abstract
Paravalvular leakage (PVL) is a complication of transcatheter aortic valve implantation (TAVI) for aortic stenosis, leading to an adverse prognosis. We investigated whether aortic valve calcium volume (Ca-Vol) measured by preoperative cardiac computed tomography had a predictive value for PVL after TAVI using a third-generation self-expandable valve.We retrospectively analyzed 59 consecutive patients who underwent TAVI using a third-generation self-expandable valve. We measured Ca-Vol in the aortic valve and each cusp (non-coronary cusp [NCC], right-coronary cusp [RCC], and left-coronary cusp [LCC]). We divided the patients into 2 groups: a PVL group (32.2%) and a non-PVL group (67.8%). Total Ca-Vol was significantly higher in the PVL group than in the non-PVL group (P < 0.001). Ca-Vol in each cusp was also significantly higher in the PVL group ([NCC] P < 0.001, [RCC] P = 0.001, [LCC] P < 0.001). Univariate logistic regression analysis for PVL indicated that the total and per-cusp Ca-Vols were predictors for PVL (total, odds ratio [OR] 4.0, P < 0.001; NCC, OR 12.5, P = 0.002; RCC, OR 16.0, P = 0.008; LCC, OR 44.5, P < 0.001).Receiver operating characteristic curve analysis of Ca-Vol for predicting PVL revealed the optimal cut-off values of Ca-Vol were 2.4 cm3 for the total, 0.74 cm3 for NCC, 0.73 cm3 for RCC, and 0.56 cm3 for LCC (area under the curve, 0.85, 0.79, 0.76, and 0.83, respectively).Preoperative total, NCC, RCC, and LCC calcium volumes were significant predictors for PVL after TAVI using third-generation self-expandable valves.
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Affiliation(s)
- Daisuke Isomatsu
- Department of Cardiovascular Medicine, Fukushima Medical University
| | - Akihiko Sato
- Department of Cardiovascular Medicine, Fukushima Medical University
| | - Yuuki Muto
- Department of Cardiovascular Medicine, Fukushima Medical University
| | - Yu Sato
- Department of Cardiovascular Medicine, Fukushima Medical University
| | - Takeshi Shimizu
- Department of Cardiovascular Medicine, Fukushima Medical University
| | - Tomofumi Misaka
- Department of Cardiovascular Medicine, Fukushima Medical University
| | | | - Masayoshi Oikawa
- Department of Cardiovascular Medicine, Fukushima Medical University
| | | | - Akiomi Yoshihisa
- Department of Cardiovascular Medicine, Fukushima Medical University
- Department of Clinical Laboratory Sciences, Fukushima Medical University School of Health Sciences
| | - Takayoshi Yamaki
- Department of Cardiovascular Medicine, Fukushima Medical University
| | - Hiroyuki Kunii
- Department of Cardiovascular Medicine, Ohara General Hospital
| | | | - Takafumi Ishida
- Department of Cardiovascular Medicine, Fukushima Medical University
| | - Hirofumi Sekino
- Department of Radiology and Nuclear Medicine, Fukushima Medical University
| | - Kenji Fukushima
- Department of Radiology and Nuclear Medicine, Fukushima Medical University
| | - Hiroshi Ito
- Department of Radiology and Nuclear Medicine, Fukushima Medical University
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Shimizu T, Toyota S, Takahara M, Touhara K, Hagioka T, Hoshikuma Y, Achiha T, Murakami T, Kobayashi M, Kishima H. Long-term Patency of Retrograde Bypass Using a Distal Stump of the Parietal Superficial Temporal Artery for Moyamoya Disease. Neurol Med Chir (Tokyo) 2023; 63:542-547. [PMID: 37743507 PMCID: PMC10788485 DOI: 10.2176/jns-nmc.2023-0070] [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: 03/31/2023] [Accepted: 07/21/2023] [Indexed: 09/26/2023] Open
Abstract
There have been a number of anastomosis methods of bypass techniques reported for moyamoya disease. However, there are yet no randomized controlled trials conducted on the anastomosis method. Retrograde blood flow of the superficial temporal artery (STA) may be used as one of the donor options. Here, we examined the tolerability of retrograde bypass using a distal stump of the parietal STA (dsPSTA). Anastomosis between the dsPSTA and middle cerebral artery (MCA) was performed for consecutive patients with moyamoya disease whose parietal STA was visualized to be longer than 10 cm using contrast-enhanced computed tomography preoperatively. Retrospectively, we have examined its patency and clinical outcome. Retrograde dsPSTA-MCA bypass was performed in 22 hemispheres of 17 patients. The patency of retrograde dsPSTA-MCA bypass in all 22 anastomoses could be confirmed during follow-up periods (mean: 5.5, range: 2-15 years). No recurrence of ischemic events was observed. The dsPSTA-MCA bypass using retrograde blood flow has been determined as one of the many promising anastomosis methods, and long-term patency was achieved in moyamoya disease.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Haruhiko Kishima
- Department of Neurosurgery, Osaka University Graduate School of Medicine
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Nakamura K, Kouzaki H, Murao T, Kawakita K, Arai H, Matsumoto K, Kubo Y, Tojima I, Shimizu S, Ogawa Y, Yuta A, Sakai R, Ohno H, Kido H, Shimizu T. Sublingual immunotherapy decreases the avidity of antigen-specific IgE in patients with Japanese cedar pollinosis. Allergy 2023; 78:3268-3271. [PMID: 37807665 DOI: 10.1111/all.15900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 09/06/2023] [Accepted: 09/13/2023] [Indexed: 10/10/2023]
Affiliation(s)
- Keigo Nakamura
- Department of Otorhinolaryngology-Head and Neck Surgery, Shiga University of Medical Science, Otsu, Japan
| | - Hideaki Kouzaki
- Department of Otorhinolaryngology-Head and Neck Surgery, Shiga University of Medical Science, Otsu, Japan
| | - Takuya Murao
- Department of Otorhinolaryngology-Head and Neck Surgery, Shiga University of Medical Science, Otsu, Japan
| | - Kento Kawakita
- Department of Otorhinolaryngology-Head and Neck Surgery, Shiga University of Medical Science, Otsu, Japan
| | - Hiroyuki Arai
- Department of Otorhinolaryngology-Head and Neck Surgery, Shiga University of Medical Science, Otsu, Japan
| | - Koji Matsumoto
- Department of Otorhinolaryngology-Head and Neck Surgery, Shiga University of Medical Science, Otsu, Japan
| | - Yoshihito Kubo
- Department of Otorhinolaryngology-Head and Neck Surgery, Shiga University of Medical Science, Otsu, Japan
| | - Ichiro Tojima
- Department of Otorhinolaryngology-Head and Neck Surgery, Shiga University of Medical Science, Otsu, Japan
| | - Shino Shimizu
- Department of Otorhinolaryngology-Head and Neck Surgery, Shiga University of Medical Science, Otsu, Japan
| | | | - Atsushi Yuta
- Department of Otorhinolaryngology-Head and Neck Surgery, Shiga University of Medical Science, Otsu, Japan
- Yuta Clinic, Tsu, Japan
| | - Rika Sakai
- Division of Enzyme Chemistry, Institute for Enzyme Research, Tokushima University, Tokushima, Japan
| | - Hitoshi Ohno
- Division of Enzyme Chemistry, Institute for Enzyme Research, Tokushima University, Tokushima, Japan
| | - Hiroshi Kido
- Division of Enzyme Chemistry, Institute for Enzyme Research, Tokushima University, Tokushima, Japan
| | - Takeshi Shimizu
- Department of Otorhinolaryngology-Head and Neck Surgery, Shiga University of Medical Science, Otsu, Japan
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10
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Sakuma Y, Shimizu T, Kurosawa Y, Ohara H, Muto Y, Sato Y, Kiko T, Sato A, Misaka T, Yoshihisa A, Yamaki T, Nakazato K, Ishida T, Takeishi Y. Impact of bleeding event for new cancer diagnosis in patients with antiplatelet therapy after percutaneous coronary intervention. J Cardiol 2023; 82:460-466. [PMID: 37086970 DOI: 10.1016/j.jjcc.2023.04.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 02/06/2023] [Accepted: 04/05/2023] [Indexed: 04/24/2023]
Abstract
BACKGROUND Bleeding is a frequent event in coronary artery disease (CAD) patients treated with antiplatelet therapy after percutaneous coronary intervention (PCI). The impact of bleeding in CAD patients with antiplatelet therapy for cancer diagnosis remains unclear. METHODS AND RESULTS Consecutive 1565 CAD patients treated with antiplatelet therapy after PCI, without anticoagulation therapy, were enrolled. We aimed to investigate the relationships between bleeding events and the incidence of new cancer diagnosis. Among 1565 patients, 178 (11.3 %) experienced any bleeding events defined as Bleeding Academic Research Consortium (BARC) type 1, 2, 3, or 5 bleeding and 75 (4.7 %) experienced minor bleeding events defined as BARC 1 or 2 bleeding, and 116 (7.4 %) were diagnosed with new cancer during a mean follow-up period of 1528 days. Among 178 patients with any bleeding and 75 patients with minor bleeding events, 20 (11.2 %) and 13 (17.3 %) were subsequently diagnosed with new cancer, respectively. The proportion of new cancer diagnosis was higher in patients with any bleeding and minor bleeding events than in those without bleeding events (3.3 versus 1.6 per 100 person-years, p < 0.001 and 6.2 versus 1.6 per 100 person-years, p < 0.001, respectively). Multivariate Cox proportional hazard analysis revealed that any bleeding and minor bleeding events were associated with higher rate of new cancer diagnosis [hazard ratio (HR) 2.27, p = 0.003 and HR 3.93, p < 0.001, respectively]. Additionally, any gastrointestinal bleeding and minor gastrointestinal bleeding events were associated with higher rate of new gastrointestinal cancer diagnosis (HR 8.67, p < 0.001 and HR 12.74, p < 0.001, respectively). CONCLUSIONS In CAD patients with antiplatelet therapy after PCI, any bleeding and minor bleeding events were associated with subsequent new cancer diagnosis. Even minor bleeding events may be the first manifestation of underlying cancer during antiplatelet therapy after PCI.
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Affiliation(s)
- Yuya Sakuma
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Takeshi Shimizu
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan.
| | - Yuta Kurosawa
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Himika Ohara
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Yuki Muto
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Yu Sato
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Takatoyo Kiko
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Akihiko Sato
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Tomofumi Misaka
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Akiomi Yoshihisa
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Takayoshi Yamaki
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Kazuhiko Nakazato
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Takafumi Ishida
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Yasuchika Takeishi
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
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11
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Shimizu T, Abe S, Asano T, Kaneshiro T, Kobayashi A, Yamaki T, Nakazato K, Takanashi S, Isobe M, Takeishi Y. Perioperative immunosuppressive therapy and coronary ostial angioplasty for unstable angina with Takayasu arteritis. J Cardiol Cases 2023; 28:257-260. [PMID: 38126047 PMCID: PMC10730271 DOI: 10.1016/j.jccase.2023.08.013] [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: 06/19/2023] [Revised: 07/30/2023] [Accepted: 08/10/2023] [Indexed: 12/23/2023] Open
Abstract
A young female patient with Takayasu arteritis presented with unstable angina due to bilateral coronary artery involvement. Steroid pulse therapy and subsequent prednisolone administration were started, but early coronary artery bypass grafting was required because of the multiple angina attacks at rest, with a prednisolone dose of 22.5 mg (0.45 mg/kg/day). Since the left internal thoracic artery which was grafted to the left anterior descending artery resulted in graft failure a few days after the surgery, the immunosuppressive therapy was intensified with the addition of tocilizumab and methotrexate. After controlling the disease activity, coronary ostial angioplasty using external iliac artery grafts was successfully performed, with a prednisolone dose of 15 mg (0.3 mg/kg/day). Ten months after the operation, the patient has been free from chest pain. The present case demonstrated the importance of adequate preoperative immunosuppressive therapy, even when early surgical intervention is required. Learning objective There are no established treatment regimens for immunosuppressive management in cases of Takayasu arteritis (TAK) requiring immediate surgical intervention. Even when early surgery is required, it is important to reduce disease activity with appropriate preoperative immunosuppressive therapy using steroids in addition to biological agents, such as tocilizumab. Coronary ostial angioplasty is the effective surgical revascularization technique for TAK with coronary artery involvement.
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Affiliation(s)
- Takeshi Shimizu
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Satoshi Abe
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Tomoyuki Asano
- Department of Rheumatology, Fukushima Medical University, Fukushima, Japan
| | - Takashi Kaneshiro
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Atsushi Kobayashi
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Takayoshi Yamaki
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Kazuhiko Nakazato
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Shuichiro Takanashi
- Department of Cardiovascular Surgery, Sakakibara Heart Institute, Tokyo, Japan
| | - Mitsuaki Isobe
- Department of Cardiology, Sakakibara Heart Institute, Tokyo, Japan
| | - Yasuchika Takeishi
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
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12
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Nakajima K, Shibutani T, Massanes F, Shimizu T, Yoshida S, Onoguchi M, Kinuya S, Vija AH. Myocardial perfusion imaging with retrospective gating and integrated correction of attenuation, scatter, respiration, motion, and arrhythmia. J Nucl Cardiol 2023; 30:2773-2789. [PMID: 37758961 PMCID: PMC10682219 DOI: 10.1007/s12350-023-03374-5] [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] [Accepted: 07/31/2023] [Indexed: 09/29/2023]
Abstract
BACKGROUND Absolute quantitative myocardial perfusion SPECT requires addressing of aleatory and epistemic uncertainties in conjunction with providing image quality sufficient for lesion detection and characterization. Iterative reconstruction methods enable the mitigation of the root causes of image degradation. This study aimed to determine the feasibility of a new SPECT/CT method with integrated corrections attempting to enable absolute quantitative cardiac imaging (xSPECT Cardiac; xSC). METHODS We compared images of prototype xSC and conventional SPECT (Flash3DTM) acquired at rest from 56 patients aged 71 ± 12 y with suspected coronary heart disease. The xSC prototype comprised list-mode acquisitions with continuous rotation and subsequent iterative reconstructions with retrospective electrocardiography (ECG) gating. Besides accurate image formation modeling, patient-specific CT-based attenuation and energy window-based scatter correction, additionally we applied mitigation for patient and organ motion between views (inter-view), and within views (intra-view) for both the gated and ungated reconstruction. We then assessed image quality, semiquantitative regional values, and left ventricular function in the images. RESULTS The quality of all xSC images was acceptable for clinical purposes. A polar map showed more uniform distribution for xSC compared with Flash3D, while lower apical count and higher defect contrast of myocardial infarction (p = 0.0004) were observed on xSC images. Wall motion, 16-gate volume curve, and ejection fraction were at least acceptable, with indication of improvements. The clinical prospectively gated method rejected beats ≥20% in 6 patients, whereas retrospective gating used an average of 98% beats, excluding 2% of beats. We used the list-mode data to create a product equivalent prospectively gated dataset. The dataset showed that the xSC method generated 18% higher count data and images with less noise, with comparable functional variables of volume and LVEF (p = ns). CONCLUSIONS Quantitative myocardial perfusion imaging with the list-mode-based prototype xSPECT Cardiac is feasible, resulting in images of at least acceptable image quality.
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Affiliation(s)
- Kenichi Nakajima
- Functional Imaging and Artificial Intelligence, Kanazawa University, Kanazawa, 920-8640, Japan.
| | - Takayuki Shibutani
- Quantum Medical Technology, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Francesc Massanes
- Siemens Medical Solutions USA, Inc. Molecular Imaging, Hoffman Estates, IL, USA
| | - Takeshi Shimizu
- Siemens Medical Solutions USA, Inc. Molecular Imaging, Hoffman Estates, IL, USA
| | - Shohei Yoshida
- Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - Masahisa Onoguchi
- Quantum Medical Technology, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Seigo Kinuya
- Department of Nuclear Medicine, Kanazawa University, Kanazawa, Japan
| | - A Hans Vija
- Siemens Medical Solutions USA, Inc. Molecular Imaging, Hoffman Estates, IL, USA
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13
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Fukuie T, Suwabe K, Kawase S, Shimizu T, Ochi G, Kuwamizu R, Sakairi Y, Soya H. Groove Rhythm Enhances Exercise Impact on Prefrontal Cortex Function in Groove Enjoyers. Neuroscience 2023; 531:117-129. [PMID: 37678588 DOI: 10.1016/j.neuroscience.2023.08.039] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 04/12/2023] [Revised: 08/20/2023] [Accepted: 08/31/2023] [Indexed: 09/09/2023]
Abstract
A positive affective response modulates the effects of aerobic exercise on prefrontal executive function (EF). Groove rhythm (GR), eliciting the feeling of wanting to move to music, is useful for inducing positive affective response during exercise. Three minutes of listening to GR activated the left dorsolateral prefrontal cortex (l-DLPFC) and enhanced EF in participants who had higher psychological responses to GR. This finding prompted us to test the hypothesis that the combination of GR and exercise (GREX) induces positive psychological responses that enhance PFC function through entrainment of body movements and musical beats. 41 participants were administered two experimental conditions: three min of very light-intensity (30% V̇ O2peak) exercise combined with GR and combined with a white-noise metronome (WMEX). Before and after exercise, participants performed a Stroop task and were monitored for l-DLPFC activity with functional near-infrared spectroscopy. GREX enhanced EF and l-DLPFC activity in participants who experienced greater subjective feelings of audiomotor entrainment and increased excitement with GREX. These psychological responses were predictive of the impact of GREX on l-DLPFC activity and EF. These findings, together with previous results, support the hypothesis that GR allows us to boost the cognitive benefits of exercise via l-DLPFC activity only in those who enjoy groove, and suggest that subjective audiomotor entrainment is a key mechanism of this boosting effect.
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Affiliation(s)
- Takemune Fukuie
- Laboratory of Exercise Biochemistry and Neuroendocrinology, Faculty of Health and Sport Sciences, University of Tsukuba, Ibaraki 305-8574, Japan; School of Nursing and Social Services, Health Sciences University of Hokkaido, Hokkaido 061-0293, Japan
| | - Kazuya Suwabe
- Laboratory of Exercise Biochemistry and Neuroendocrinology, Faculty of Health and Sport Sciences, University of Tsukuba, Ibaraki 305-8574, Japan; Sport Neuroscience Division, Advanced Research Initiative for Human High Performance (ARIHHP), Faculty of Health and Sport Sciences, University of Tsukuba, Ibaraki 305-8574, Japan; Faculty of Health and Sport Sciences, Ryutsu Keizai University, Ibaraki 301-8555, Japan
| | - Satoshi Kawase
- Faculty of Psychology, Kobe Gakuin University, Hyogo 651-2180, Japan
| | - Takeshi Shimizu
- School of Information and Communication, Meiji University, Tokyo 101-8301, Japan
| | - Genta Ochi
- Laboratory of Exercise Biochemistry and Neuroendocrinology, Faculty of Health and Sport Sciences, University of Tsukuba, Ibaraki 305-8574, Japan; Sport Neuroscience Division, Advanced Research Initiative for Human High Performance (ARIHHP), Faculty of Health and Sport Sciences, University of Tsukuba, Ibaraki 305-8574, Japan; Department of Health and Sports, Niigata University of Health and Welfare, Niigata 950-3198, Japan
| | - Ryuta Kuwamizu
- Laboratory of Exercise Biochemistry and Neuroendocrinology, Faculty of Health and Sport Sciences, University of Tsukuba, Ibaraki 305-8574, Japan; Graduate School of Letters, Kyoto University, Kyoto 606-8501, Japan
| | - Yosuke Sakairi
- Sport Neuroscience Division, Advanced Research Initiative for Human High Performance (ARIHHP), Faculty of Health and Sport Sciences, University of Tsukuba, Ibaraki 305-8574, Japan
| | - Hideaki Soya
- Laboratory of Exercise Biochemistry and Neuroendocrinology, Faculty of Health and Sport Sciences, University of Tsukuba, Ibaraki 305-8574, Japan; Sport Neuroscience Division, Advanced Research Initiative for Human High Performance (ARIHHP), Faculty of Health and Sport Sciences, University of Tsukuba, Ibaraki 305-8574, Japan.
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14
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Tanifuji N, Shimizu T, Shimizu A, Shimizu K, Abe K, Tanaka M, Wang H, Yoshikawa H. Stability Modification of Dye-sensitized Solar Cells by Ruthenium Dyes Embedded on Eggshell Membranes. Materials (Basel) 2023; 16:6654. [PMID: 37895636 PMCID: PMC10607939 DOI: 10.3390/ma16206654] [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] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 09/22/2023] [Accepted: 09/25/2023] [Indexed: 10/29/2023]
Abstract
Dye-sensitized solar cells (DSSCs) have been one of the most promising technologies to convert sunlight into electricity repeatedly based on the mechanism that dyes inject/accept electron into the metal oxides/from redox mediator. Specifically, N719 ([RuL2(NCS)2], L: 4,4'-dicarboxy-2,2'-bipyridine), immobilized on TiO2 through the interaction between its ligands (-COO- and -NCS) and the oxygen on the TiO2 surface, has been used as a conventional DSSC dye with high voltage. Nevertheless, -NCS ligands have been removed from Ru2+ in N719 due to UV irradiation and exchanged with H2O or OH- in electrolyte, resulting in voltage drop. In this work, we developed the first DSSC using the N719-adsorbed Eggshell (ESM)-TiO2 composite to maintain the immobilization of N719 on TiO2 through electrostatic interaction between the protein of ESM and N719. The DSSC using the composite maintained the voltage even after 12 h light irradiation, although the voltage of DSSC without ESM dropped drastically. It means that the ESM contributed to stable photovoltaic performances of DSSCs through the protection of NCS ligands of N719.
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Affiliation(s)
- Naoki Tanifuji
- Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College, 4448 Hikona-cho, Yonago 683-8502, Tottori, Japan
| | - Takeshi Shimizu
- Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College, 4448 Hikona-cho, Yonago 683-8502, Tottori, Japan
| | - Akihiro Shimizu
- Department of Materials Science, National Institute of Technology, Yonago College, Yonago 683-8502, Tottori, Japan (K.S.); (K.A.)
| | - Kaho Shimizu
- Department of Materials Science, National Institute of Technology, Yonago College, Yonago 683-8502, Tottori, Japan (K.S.); (K.A.)
| | - Kizuna Abe
- Department of Materials Science, National Institute of Technology, Yonago College, Yonago 683-8502, Tottori, Japan (K.S.); (K.A.)
| | - Miki Tanaka
- Department of Materials Science, National Institute of Technology, Yonago College, Yonago 683-8502, Tottori, Japan (K.S.); (K.A.)
| | - Heng Wang
- School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China
| | - Hirofumi Yoshikawa
- School of Engineering, Kwansei Gakuin University, 2-1 Gakuen, Sanda 669-1337, Hyogo, Japan
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15
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Kakimoto S, Harada Y, Shimizu T. Gastric syphilis. QJM 2023; 116:800-801. [PMID: 37202361 DOI: 10.1093/qjmed/hcad096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Indexed: 05/20/2023] Open
Affiliation(s)
- S Kakimoto
- Department of Diagnostic and Generalist Medicine, Dokkyo Medical University Hospital, Kitakobayashi 880, Mibu, Tochigi 321-0293, Japan
| | - Y Harada
- Department of Diagnostic and Generalist Medicine, Dokkyo Medical University Hospital, Kitakobayashi 880, Mibu, Tochigi 321-0293, Japan
| | - T Shimizu
- Department of Diagnostic and Generalist Medicine, Dokkyo Medical University Hospital, Kitakobayashi 880, Mibu, Tochigi 321-0293, Japan
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16
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Nishiura K, Nakazato K, Yokokawa T, Suzuki Y, Kurosawa Y, Wada K, Shimizu T, Oikawa M, Kobayashi A, Sugimoto K, Shakespear N, Hashimoto Y, Takeishi Y. A Case of Giant Goiter Associated with Airway Stenosis Caused by Long-Term Intravenous Epoprostenol Therapy for Idiopathic Pulmonary Arterial Hypertension. J Clin Med 2023; 12:6359. [PMID: 37835003 PMCID: PMC10573889 DOI: 10.3390/jcm12196359] [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: 09/01/2023] [Revised: 09/25/2023] [Accepted: 10/02/2023] [Indexed: 10/15/2023] Open
Abstract
Idiopathic pulmonary arterial hypertension is a progressive and life-threatening disease with pulmonary vasculature remodeling, leading to right-sided heart failure. Epoprostenol (prostaglandin I2) is highly recommended for patients with severe pulmonary arterial hypertension (PAH) categorized by the World Health Organization as functional class III or IV. It has been reported that prostaglandin I2 analogs can cause thyroid gland swelling and abnormal thyroid function. A 34-year-old woman was diagnosed with idiopathic pulmonary arterial hypertension and started receiving continuous intravenous epoprostenol. Three years after starting epoprostenol, she began complaining of neck swelling and was diagnosed with Graves' disease. The patient's thyroid function was controlled by thiamazole and levothyroxine; nevertheless, her thyroid gland enlargement worsened as the epoprostenol dose was titrated. After 20 years, she developed respiratory failure with a giant goiter leading to airway stenosis, and she passed away. The pathological autopsy confirmed a massive goiter associated with hyperthyroidism and airway stenosis. We experienced a case of idiopathic pulmonary hypertension with a giant goiter and airway stenosis after long-term intravenous epoprostenol therapy.
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Affiliation(s)
- Kazuto Nishiura
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima 960-1295, Japan; (K.N.)
| | - Kazuhiko Nakazato
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima 960-1295, Japan; (K.N.)
| | - Tetsuro Yokokawa
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima 960-1295, Japan; (K.N.)
| | - Yoshinori Suzuki
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima 960-1295, Japan; (K.N.)
| | - Yuta Kurosawa
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima 960-1295, Japan; (K.N.)
| | - Kento Wada
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima 960-1295, Japan; (K.N.)
| | - Takeshi Shimizu
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima 960-1295, Japan; (K.N.)
| | - Masayoshi Oikawa
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima 960-1295, Japan; (K.N.)
| | - Atsushi Kobayashi
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima 960-1295, Japan; (K.N.)
| | - Koichi Sugimoto
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima 960-1295, Japan; (K.N.)
| | - Norshalena Shakespear
- Department of Diagnostic Pathology, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Yuko Hashimoto
- Department of Diagnostic Pathology, Fukushima Medical University, Fukushima 960-1295, Japan
| | - Yasuchika Takeishi
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima 960-1295, Japan; (K.N.)
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17
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Endo K, Shimizu T, Muto Y, Kimishima Y, Abe S, Oikawa M, Kobayashi A, Yamaki T, Nakazato K, Ishida T, Takeishi Y. Acute coronary syndrome with severe coronary calcification in a patient with pseudo-pseudohypoparathyroidism. J Cardiol Cases 2023; 28:172-175. [PMID: 37818432 PMCID: PMC10562121 DOI: 10.1016/j.jccase.2023.06.004] [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: 02/06/2023] [Revised: 05/16/2023] [Accepted: 05/23/2023] [Indexed: 10/12/2023] Open
Abstract
A 40-year-old female with a history of steroid therapy for juvenile rheumatoid arthritis was brought to our hospital because of chest pain. A diagnosis of non-ST elevation myocardial infarction was made, and emergency coronary angiography revealed stenotic lesions with severe calcification in the left anterior descending artery and the right coronary artery. Percutaneous coronary intervention with rotational atherectomy followed by a drug-coated balloon was performed to the lesion in the left anterior descending artery. The patient had characteristic physical findings including short stature, a round face, and 'knuckle-dimple sign'. Whole-body computed tomography showed many ectopic calcifications, indicating Albright's hereditary osteodystrophy. Ellsworth-Howard test revealed that urinary cyclic adenosine monophosphate response was positive, thus a diagnosis of pseudo-pseudohypoparathyroidism (PPHP) was made. Here, we describe a rare case of PPHP complicated by acute coronary syndrome with severely calcified coronary arteries. Learning objective Pseudo-pseudohypoparathyroidism (PPHP) presents with several characteristic physical findings and ectopic calcifications. Since PPHP involves coronary artery calcification as in the present case, it may be considered as a cause of coronary artery disease.
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Affiliation(s)
- Keiichiro Endo
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Takeshi Shimizu
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Yuki Muto
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Yusuke Kimishima
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Satoshi Abe
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Masayoshi Oikawa
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Atsushi Kobayashi
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Takayoshi Yamaki
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Kazuhiko Nakazato
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Takafumi Ishida
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Yasuchika Takeishi
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
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18
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Nishiura K, Yokokawa T, Misaka T, Ichimura S, Tomita Y, Miura S, Shimizu T, Sato T, Kaneshiro T, Oikawa M, Kobayashi A, Yoshihisa A, Takeishi Y. Prognostic Role of Circulating LTBP-2 in Patients With Dilated Cardiomyopathy: A Novel Biomarker Reflecting Extracellular Matrix LTBP-2 Accumulation. Can J Cardiol 2023; 39:1436-1445. [PMID: 37270166 DOI: 10.1016/j.cjca.2023.05.015] [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] [Received: 02/05/2023] [Revised: 05/19/2023] [Accepted: 05/26/2023] [Indexed: 06/05/2023] Open
Abstract
BACKGROUND Dilated cardiomyopathy (DCM) is a life-threatening disease related to heart failure. Extracellular matrix proteins have an important role in the pathogenesis of DCM. Latent transforming growth factor beta-binding protein 2 (LTBP-2), a type of extracellular matrix protein, has not been investigated in DCM. METHODS First, we compared plasma LTBP-2 levels in 131 patients with DCM who underwent endomyocardial biopsy and 44 controls who were matched for age and sex and had no cardiac abnormalities. Next, we performed immunohistochemistry for LTBP-2 on endomyocardial biopsy specimens and followed the DCM patients for ventricular assist device (VAD) implantation, cardiac death, and all-cause death. RESULTS Patients with DCM had elevated plasma LTBP-2 levels compared with controls (P < 0.001). Plasma LTBP-2 levels were positively correlated with LTBP-2-positive fraction in the myocardium from the biopsy specimen. When patients with DCM were divided into 2 groups according to LTBP-2 levels, Kaplan-Meier analysis demonstrated that patients with high plasma LTBP-2 were associated with increased incidences of cardiac death/VAD and all-cause death/VAD. In addition, patients with high myocardial LTBP-2-positive fractions were associated with increased incidences of these adverse outcomes. Multivariable Cox proportional hazard analysis showed that plasma LTBP-2 and myocardial LTBP-2-positive fraction were independently associated with adverse outcomes. CONCLUSIONS Circulating LTBP-2 can serve as a biomarker to predict adverse outcomes, reflecting extracellular matrix LTBP-2 accumulation in the myocardium in DCM.
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Affiliation(s)
- Kazuto Nishiura
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Tetsuro Yokokawa
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan.
| | - Tomofumi Misaka
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Shohei Ichimura
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Yusuke Tomita
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Shunsuke Miura
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Takeshi Shimizu
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Takamasa Sato
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Takashi Kaneshiro
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Masayoshi Oikawa
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Atsushi Kobayashi
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
| | - Akiomi Yoshihisa
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan; Department of Clinical Laboratory Sciences, Fukushima Medical University School of Health Science, Fukushima, Japan
| | - Yasuchika Takeishi
- Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan
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Hagioka T, Shimizu T, Toyota S, Murakami T, Achiha T, Takahara M, Touhara K, Hoshikuma Y, Kobayashi M, Kishima H. Cerebral Venous Sinus Thrombosis Successfully Treated with Mechanical Thrombectomy under Intracranial Pressure Monitoring: A Case Report. NMC Case Rep J 2023; 10:241-245. [PMID: 37869376 PMCID: PMC10584664 DOI: 10.2176/jns-nmc.2023-0076] [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: 04/10/2023] [Accepted: 07/21/2023] [Indexed: 10/24/2023] Open
Abstract
A 54-year-old man with no medical history presented to our hospital with vomiting, left hemiplegia, and seizures. On arrival, he was experiencing generalized tonic-clonic seizures, which required him to be intubated and deeply sedated. Contrast-enhanced computed tomography revealed extensive venous sinus obstruction from the superior sagittal sinus to the bilateral sigmoid sinus and cerebral edema with intracranial hemorrhage. An intracranial pressure (ICP) monitor was immediately placed intracranially, and mechanical thrombectomy (MT) was performed under ICP monitoring. MT was immediately terminated when the venous sinus was partially recanalized enough to decrease the ICP; then, anticoagulation therapy was initiated. Postoperative follow-up angiography revealed that venous sinus obstruction and intracranial venous perfusion improved over time. Although he had intracranial hemorrhage-induced left hemiplegia and sensory deficits, his condition improved with rehabilitation, and the patient was eventually discharged home. The indication criteria and techniques for MT for cerebral venous sinus thrombosis are yet to be established. As in this case, in patients with impaired consciousness due to intracranial hemorrhage or epilepsy, preoperative ICP monitor placement is deemed useful to evaluate venous perfusion during MT and decide the treatment goal.
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Affiliation(s)
- Tatsuya Hagioka
- Department of Neurosurgery, Kansai Rosai Hospital, Amagasaki, Hyogo, Japan
| | - Takeshi Shimizu
- Department of Neurosurgery, Kansai Rosai Hospital, Amagasaki, Hyogo, Japan
| | - Shingo Toyota
- Department of Neurosurgery, Kansai Rosai Hospital, Amagasaki, Hyogo, Japan
| | - Tomoaki Murakami
- Department of Neurosurgery, Kansai Rosai Hospital, Amagasaki, Hyogo, Japan
| | - Takamune Achiha
- Department of Neurosurgery, Kansai Rosai Hospital, Amagasaki, Hyogo, Japan
| | - Motohide Takahara
- Department of Neurosurgery, Kansai Rosai Hospital, Amagasaki, Hyogo, Japan
| | - Kazuhiro Touhara
- Department of Neurosurgery, Kansai Rosai Hospital, Amagasaki, Hyogo, Japan
| | - Yuhei Hoshikuma
- Department of Neurosurgery, Kansai Rosai Hospital, Amagasaki, Hyogo, Japan
| | - Maki Kobayashi
- Department of Neurosurgery, Kansai Rosai Hospital, Amagasaki, Hyogo, Japan
| | - Haruhiko Kishima
- Department of Neurosurgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
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20
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Loong HH, Shimizu T, Prawira A, Tan AC, Tran B, Day D, Tan DSP, Ting FIL, Chiu JW, Hui M, Wilson MK, Prasongsook N, Koyama T, Reungwetwattana T, Tan TJ, Heong V, Voon PJ, Park S, Tan IB, Chan SL, Tan DSW. Recommendations for the use of next-generation sequencing in patients with metastatic cancer in the Asia-Pacific region: a report from the APODDC working group. ESMO Open 2023; 8:101586. [PMID: 37356359 PMCID: PMC10319859 DOI: 10.1016/j.esmoop.2023.101586] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [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: 12/10/2022] [Revised: 03/27/2023] [Accepted: 05/18/2023] [Indexed: 06/27/2023] Open
Abstract
INTRODUCTION Next-generation sequencing (NGS) diagnostics have shown clinical utility in predicting survival benefits in patients with certain cancer types who are undergoing targeted drug therapies. Currently, there are no guidelines or recommendations for the use of NGS in patients with metastatic cancer from an Asian perspective. In this article, we present the Asia-Pacific Oncology Drug Development Consortium (APODDC) recommendations for the clinical use of NGS in metastatic cancers. METHODS The APODDC set up a group of experts in the field of clinical cancer genomics to (i) understand the current NGS landscape for metastatic cancers in the Asia-Pacific (APAC) region; (ii) discuss key challenges in the adoption of NGS testing in clinical practice; and (iii) adapt/modify the European Society for Medical Oncology guidelines for local use. Nine cancer types [breast cancer (BC), gastric cancer (GC), nasopharyngeal cancer (NPC), ovarian cancer (OC), prostate cancer, lung cancer, and colorectal cancer (CRC) as well as cholangiocarcinoma and hepatocellular carcinoma (HCC)] were identified, and the applicability of NGS was evaluated in daily practice and/or clinical research. Asian ethnicity, accessibility of NGS testing, reimbursement, and socioeconomic and local practice characteristics were taken into consideration. RESULTS The APODDC recommends NGS testing in metastatic non-small-cell lung cancer (NSCLC). Routine NGS testing is not recommended in metastatic BC, GC, and NPC as well as cholangiocarcinoma and HCC. The group suggested that patients with epithelial OC may be offered germline and/or somatic genetic testing for BReast CAncer gene 1 (BRCA1), BRCA2, and other OC susceptibility genes. Access to poly (ADP-ribose) polymerase inhibitors is required for NGS to be of clinical utility in prostate cancer. Allele-specific PCR or a small-panel multiplex-gene NGS was suggested to identify key alterations in CRC. CONCLUSION This document offers practical guidance on the clinical utility of NGS in specific cancer indications from an Asian perspective.
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Affiliation(s)
- H H Loong
- Department of Clinical Oncology, The Chinese University of Hong Kong, Hong Kong, China
| | - T Shimizu
- Department of Pulmonary Medicine and Medical Oncology, Wakayama Medical University Graduate School of Medicine, Wakayama, Japan
| | - A Prawira
- Cancer Trials and Research Unit, Prince of Wales Hospital, Sydney, Australia
| | - A C Tan
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore
| | - B Tran
- Department of Oncology, Peter MacCallum Cancer Centre, Melbourne
| | - D Day
- Department of Oncology, Monash Health and Monash University, Australia
| | - D S P Tan
- Department of Haematology-Oncology, National University Cancer Institute, Singapore
| | - F I L Ting
- Department of Medicine, Dr. Pablo O. Torre Memorial Hospital, Bacolod, Philippines
| | - J W Chiu
- Department of Medicine, The University of Hong Kong, HKSAR, Pok Fu Lam, Hong Kong, China
| | - M Hui
- Department of Medical Oncology, Chris O'Brien Lifehouse, Camperdown, Australia
| | - M K Wilson
- Department of Medical Oncology, Auckland City Hospital, Auckland, New Zealand
| | - N Prasongsook
- Division of Medical Oncology, Phramongkutklao Hospital, Bangkok, Thailand
| | - T Koyama
- Department of Experimental Therapeutics, National Cancer Center Hospital, Tokyo, Japan
| | - T Reungwetwattana
- Division of Medical Oncology, Department of Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - T J Tan
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore
| | - V Heong
- Department Medical Oncology, Tan Tock Seng Hospital, Singapore
| | - P J Voon
- Radiotherapy and Oncology Department, Hospital Umum Sarawak, Kuching, Malaysia
| | - S Park
- Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - I B Tan
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore
| | - S L Chan
- Department of Clinical Oncology, The Chinese University of Hong Kong, Hong Kong, China
| | - D S W Tan
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore.
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Kakimoto S, Harada Y, Shimizu T. A thermal imaging camera at the work office trigged the diagnosis of Takayasu arteritis. QJM 2023; 116:542-543. [PMID: 36975608 DOI: 10.1093/qjmed/hcad049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 03/27/2023] [Indexed: 03/29/2023] Open
Affiliation(s)
- S Kakimoto
- Department of Diagnostic and Generalist Medicine, Dokkyo Medical University Hospital, Kitakobayashi 880, Mibu, Tochigi 321-0293, Japan
| | - Y Harada
- Department of Diagnostic and Generalist Medicine, Dokkyo Medical University Hospital, Kitakobayashi 880, Mibu, Tochigi 321-0293, Japan
| | - T Shimizu
- Department of Diagnostic and Generalist Medicine, Dokkyo Medical University Hospital, Kitakobayashi 880, Mibu, Tochigi 321-0293, Japan
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22
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Murakami T, Toyota S, Takahara M, Touhara K, Hagioka T, Hoshikuma Y, Achiha T, Shimizu T, Kobayashi M, Kishima H. Overlapped Double-Layer Micromesh Stents for Giant Extracranial Internal Carotid Artery Aneurysm. J Neuroendovasc Ther 2023; 17:167-172. [PMID: 37609576 PMCID: PMC10442174 DOI: 10.5797/jnet.cr.2023-0020] [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: 04/04/2023] [Accepted: 05/25/2023] [Indexed: 08/24/2023]
Abstract
Objective Extracranial internal carotid artery aneurysms (ECAAs) are rare. We herein describe a case of overlapped stenting with two double-layer micromesh stents for a giant ECAA. Case Presentation A 73-year-old man presented to our hospital with an enlarged right posterior cervical mass. A right internal carotid artery (ICA) angiogram revealed a giant aneurysm of 50 × 60 mm. We chose a carotid double-layer micromesh stent for stenting. With the patient under general anesthesia, the first double-layer micromesh stent (CASPER Rx, 10 × 30 mm; Terumo, Tokyo, Japan) was deployed between the ICA distal to the aneurysm and the common carotid artery (CCA). The second stent was also deployed from a site more proximal than the first one. Ten coils were then placed from a microcatheter that had been placed in the aneurysm. A right CCA angiogram after the procedure revealed a flow-diversion effect for the aneurysm. The patient was discharged with no complications. At the 6-month follow-up angiogram, blood flow into the aneurysm had completely disappeared. Conclusion A flow-diversion effect using overlapped double-layer micromesh stents can result in thrombosis and healing of giant ECAAs.
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Affiliation(s)
- Tomoaki Murakami
- Department of Neurosurgery, Kansai Rosai Hospital, Amagasaki, Hyogo, Japan
| | - Shingo Toyota
- Department of Neurosurgery, Kansai Rosai Hospital, Amagasaki, Hyogo, Japan
| | - Motohide Takahara
- Department of Neurosurgery, Kansai Rosai Hospital, Amagasaki, Hyogo, Japan
| | - Kazuhiro Touhara
- Department of Neurosurgery, Kansai Rosai Hospital, Amagasaki, Hyogo, Japan
| | - Tatsuya Hagioka
- Department of Neurosurgery, Kansai Rosai Hospital, Amagasaki, Hyogo, Japan
| | - Yuhei Hoshikuma
- Department of Neurosurgery, Kansai Rosai Hospital, Amagasaki, Hyogo, Japan
| | - Takamune Achiha
- Department of Neurosurgery, Kansai Rosai Hospital, Amagasaki, Hyogo, Japan
| | - Takeshi Shimizu
- Department of Neurosurgery, Kansai Rosai Hospital, Amagasaki, Hyogo, Japan
| | - Maki Kobayashi
- Department of Neurosurgery, Kansai Rosai Hospital, Amagasaki, Hyogo, Japan
| | - Haruhiko Kishima
- Department of Neurosurgery, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
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23
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Chamidah N, Suzuki A, Shimizu T, Zhong C, Shimoda K, Okazaki KI, Yaji T, Nakanishi K, Nishijima M, Kinoshita H, Orikasa Y. Kinetic analysis of silicon-lithium alloying reaction in silicon single crystal using soft X-ray absorption spectroscopy. RSC Adv 2023; 13:17114-17120. [PMID: 37293473 PMCID: PMC10245090 DOI: 10.1039/d3ra02554c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 04/17/2023] [Accepted: 05/30/2023] [Indexed: 06/10/2023] Open
Abstract
Silicon has been considered to be one of the most promising anode active materials for next-generation lithium-ion batteries due to its large theoretical capacity (4200 mA h g-1, Li22Si5). However, silicon anodes suffer from degradation due to large volume expansion and contraction. To control the ideal particle morphology, an experimental method is required to analyze anisotropic diffusion and surface reaction phenomena. This study investigates the anisotropy of the silicon-lithium alloying reaction using electrochemical measurements and Si K-edge X-ray absorption spectroscopy on silicon single crystals. During the electrochemical reduction process in lithium-ion battery systems, the continuous formation of solid electrolyte interphase (SEI) films prevents the achievement of steady-state conditions. Instead, the physical contact between silicon single crystals and lithium metals can prevent the effect of SEI formation. The apparent diffusion coefficient and the surface reaction coefficient are determined from the progress of the alloying reaction analyzed by X-ray absorption spectroscopy. While the apparent diffusion coefficients show no clear anisotropy, the apparent surface reaction coefficient of Si (100) is more significant than that of Si (111). This finding indicates that the surface reaction of silicon governs the anisotropy of practical lithium alloying reaction for silicon anodes.
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Affiliation(s)
- Nur Chamidah
- Department of Applied Chemistry, Graduate School of Life Sciences, Ritsumeikan University 1-1-1 Nojihigashi Kusatsu Shiga 525-8577 Japan
| | - Akito Suzuki
- Department of Applied Chemistry, Graduate School of Life Sciences, Ritsumeikan University 1-1-1 Nojihigashi Kusatsu Shiga 525-8577 Japan
| | - Takeshi Shimizu
- Department of Applied Chemistry, Graduate School of Life Sciences, Ritsumeikan University 1-1-1 Nojihigashi Kusatsu Shiga 525-8577 Japan
| | - Chengchao Zhong
- Department of Applied Chemistry, Graduate School of Life Sciences, Ritsumeikan University 1-1-1 Nojihigashi Kusatsu Shiga 525-8577 Japan
| | - Keiji Shimoda
- Department of Applied Chemistry, Graduate School of Life Sciences, Ritsumeikan University 1-1-1 Nojihigashi Kusatsu Shiga 525-8577 Japan
| | - Ken-Ichi Okazaki
- Department of Applied Chemistry, Graduate School of Life Sciences, Ritsumeikan University 1-1-1 Nojihigashi Kusatsu Shiga 525-8577 Japan
| | - Toyonari Yaji
- Research Organization of Science and Engineering, Ritsumeikan University 1-1-1 Nojihigashi Kusatsu Shiga 525-8577 Japan
| | - Koji Nakanishi
- Laboratory of Advanced Science and Technology for Industry, University of Hyogo 3-1-2 Koto, Ako-gun Kamigori-cho Hyogo 678-1205 Japan
| | | | - Hajime Kinoshita
- KRI Inc 134 Chudojiminami-machi, Shimogyo-ku Kyoto 600-8813 Japan
| | - Yuki Orikasa
- Department of Applied Chemistry, Graduate School of Life Sciences, Ritsumeikan University 1-1-1 Nojihigashi Kusatsu Shiga 525-8577 Japan
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Ikezawa K, Hayashi S, Takenaka M, Yakushijin T, Nagaike K, Takada R, Yamai T, Matsumoto K, Yamamoto M, Omoto S, Minaga K, Ishii S, Shimizu T, Nagai K, Hosono M, Nishida T. Occupational radiation exposure to the lens of the eyes and its protection during endoscopic retrograde cholangiopancreatography. Sci Rep 2023; 13:7824. [PMID: 37188704 DOI: 10.1038/s41598-023-34740-5] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Accepted: 05/06/2023] [Indexed: 05/17/2023] Open
Abstract
This study aimed to examine occupational radiation exposure to the lens of the eyes during endoscopic retrograde cholangiopancreatography (ERCP). In this multicenter, prospective, observational cohort study, we collected data regarding occupational radiation exposure to the lens of the eyes during ERCP. We measured radiation exposure of patients and examined its correlation with occupational exposure. In dosimetrically-measured ERCPs (n = 631), the median air kerma at the patient entrance reference point, air kerma-area product, and fluoroscopy time were 49.6 mGy, 13.5 Gycm2, and 10.9 min, respectively. The median estimated annual radiation dose to the lens of the eyes was 3.7, 2.2, and 2.4 mSv for operators, assistants, and nurses, respectively. Glass badge over lead aprons and eye dosimeter results were similar in operators but differed in assistants and nurses. A strong correlation was shown between eye dosimeter measurements and patients' radiation exposure. The shielding rates of the lead glasses were 44.6%, 66.3%, and 51.7% for operators, assistants, and nurses, respectively. This study revealed the actual occupational exposure dose for the lens of the eyes during ERCP and the efficacy of lead glass. Values of radiation exposure to patients can help estimate exposure to the lens of the eyes of medical staff.
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Affiliation(s)
- Kenji Ikezawa
- Department of Hepatobiliary and Pancreatic Oncology, Osaka International Cancer Institute, Osaka, Osaka, Japan.
| | - Shiro Hayashi
- Department of Gastroenterology, Toyonaka Municipal Hospital, Toyonaka, Osaka, Japan
- Department of Gastroenterology and Internal Medicine, Hayashi Clinic, Suita, Osaka, Japan
| | - Mamoru Takenaka
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, Osaka-Sayama, Osaka, Japan
| | - Takayuki Yakushijin
- Department of Gastroenterology and Hepatology, Osaka General Medical Center, Osaka, Osaka, Japan
| | - Koji Nagaike
- Department of Gastroenterology and Hepatology, Suita Municipal Hospital, Suita, Osaka, Japan
| | - Ryoji Takada
- Department of Hepatobiliary and Pancreatic Oncology, Osaka International Cancer Institute, Osaka, Osaka, Japan
| | - Takuo Yamai
- Department of Hepatobiliary and Pancreatic Oncology, Osaka International Cancer Institute, Osaka, Osaka, Japan
| | - Kengo Matsumoto
- Department of Gastroenterology, Toyonaka Municipal Hospital, Toyonaka, Osaka, Japan
| | - Masashi Yamamoto
- Department of Gastroenterology, Toyonaka Municipal Hospital, Toyonaka, Osaka, Japan
| | - Shunsuke Omoto
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, Osaka-Sayama, Osaka, Japan
| | - Kosuke Minaga
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, Osaka-Sayama, Osaka, Japan
| | - Shuji Ishii
- Department of Gastroenterology and Hepatology, Osaka General Medical Center, Osaka, Osaka, Japan
| | - Takeshi Shimizu
- Department of Gastroenterology and Hepatology, Osaka General Medical Center, Osaka, Osaka, Japan
| | - Kengo Nagai
- Department of Gastroenterology and Hepatology, Suita Municipal Hospital, Suita, Osaka, Japan
| | - Makoto Hosono
- Department of Radiology, Kindai University Faculty of Medicine, Osaka-Sayama, Osaka, Japan
| | - Tsutomu Nishida
- Department of Gastroenterology, Toyonaka Municipal Hospital, Toyonaka, Osaka, Japan
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25
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Shimizu T, Sasaki Y, Ito K, Matsuzaka M, Sakuraba H, Fukuda S. A trial deep learning-based model for four-class histologic classification of colonic tumor from narrow band imaging. Sci Rep 2023; 13:7510. [PMID: 37161081 PMCID: PMC10169849 DOI: 10.1038/s41598-023-34750-3] [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] [Received: 01/20/2023] [Accepted: 05/06/2023] [Indexed: 05/11/2023] Open
Abstract
Narrow band imaging (NBI) has been extensively utilized as a diagnostic tool for colorectal neoplastic lesions. This study aimed to develop a trial deep learning (DL) based four-class classification model for low-grade dysplasia (LGD); high-grade dysplasia or mucosal carcinoma (HGD); superficially invasive submucosal carcinoma (SMs) and deeply invasive submucosal carcinomas (SMd) and evaluate its potential as a diagnostic tool. We collected a total of 1,390 NBI images as the dataset, including 53 LGD, 120 HGD, 20 SMs and 17 SMd. A total of 598,801 patches were trimmed from the lesion and background. A patch-based classification model was built by employing a residual convolutional neural network (CNN) and validated by three-fold cross-validation. The patch-based validation accuracy was 0.876, 0.957, 0.907 and 0.929 in LGD, HGD, SMs and SMd, respectively. The image-level classification algorithm was derived from the patch-based mapping across the entire image domain, attaining accuracies of 0.983, 0.990, 0.964, and 0.992 in LGD, HGD, SMs, and SMd, respectively. Our CNN-based model demonstrated high performance for categorizing the histological grade of dysplasia as well as the depth of invasion in routine colonoscopy, suggesting a potential diagnostic tool with minimal human inputs.
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Affiliation(s)
- Takeshi Shimizu
- Department of Gastroenterology, Sendai City Medical Center Sendai Open Hospital, 5-22-1 Tsurugaya, Miyagino-ku, Sendai, 983-0824, Japan
| | - Yoshihiro Sasaki
- Department of Medical Informatics, Hirosaki University Hospital, 53 Hon-cho, Hirosaki, 036-8563, Japan.
| | - Kei Ito
- Department of Gastroenterology, Sendai City Medical Center Sendai Open Hospital, 5-22-1 Tsurugaya, Miyagino-ku, Sendai, 983-0824, Japan
| | - Masashi Matsuzaka
- Department of Medical Informatics, Hirosaki University Hospital, 53 Hon-cho, Hirosaki, 036-8563, Japan
| | - Hirotake Sakuraba
- Department of Gastroenterology and Hematology, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, 036-8562, Japan
| | - Shinsaku Fukuda
- Department of Community Medical Support, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, 036-8562, Japan
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Tsuchiya N, Okamoto K, Nakao S, Ohmori S, Shimizu T. Effect of Blonanserin on the Proliferation and Migration of Glioblastoma Cells. Pharmazie 2023; 78:37-41. [PMID: 37189270 DOI: 10.1691/ph.2023.1821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Glioblastoma is a highly malignant and invasive brain tumor, and there is an urgent need to establish a treatment option that prevents its growth and metastasis. Blonanserin is an antipsychotic drug widely used in the treatment of schizophrenia. It has recently been reported to inhibit the growth of breast cancer cells. In this study, we investigated the effect of blonanserin on the proliferation and migration of glioblastoma cells. The anti-proliferative activity of blonanserin was evaluated in terms of cell viability, competition, and cell death pathways in glioblastoma. Cell viability studies showed that blonanserin had growth inhibitory ability regardless of the malignancy of glioblastoma cells, but at concentrations close to its IC50, it only had a slight cell death-inducing effect. Blonanserin showed growth inhibitory activity without D₂ antagonism following an independent competition analysis using blonanserin and D₂ antagonists. When the anti-migration activity of U251 cells was measured, blonanserin was found to attenuate cell migration. Furthermore, treatment with blonanserin at concentrations close to its IC50 value inhibited extensive filament actin formation. In conclusion, blonanserin inhibited the proliferation and migration of glioblastoma cells independent of D₂ antagonism. The present study shows that blonanserin may serve as a seed compound for the discovery of new glioblastoma therapeutics to prevent the growth and metastasis of glioblastoma.
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Affiliation(s)
- N Tsuchiya
- School of Pharmacy, Hyogo Medical University, Kobe, Japan
| | - K Okamoto
- School of Pharmacy, Hyogo Medical University, Kobe, Japan
| | - S Nakao
- School of Pharmacy, Hyogo Medical University, Kobe, Japan
| | - S Ohmori
- School of Pharmacy, Hyogo Medical University, Kobe, Japan
| | - T Shimizu
- School of Pharmacy, Hyogo Medical University, Kobe, Japan;,
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Nogawa T, Kato N, Shimizu T, Okano A, Futamura Y, Takahashi S, Koshino H, Osada H. Wakodecaline C, new tetrahydrofuran-fused decalin metabolite isolated from fungus Pyrenochaetopsis sp. RK10-F058. J Antibiot (Tokyo) 2023; 76:346-350. [PMID: 37020042 DOI: 10.1038/s41429-023-00613-2] [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] [Received: 01/25/2023] [Revised: 02/22/2023] [Accepted: 03/08/2023] [Indexed: 04/07/2023]
Abstract
A new decalin-containing secondary metabolite, wakodecaline C, was isolated from a fungus Pyrenochaetopsis sp. RK10-F058 by screening structurally interesting metabolites based on LC/MS profiling. The structure including the absolute configuration was determined by a combination of spectroscopic methods including NMR and mass spectrometry, chemical reaction, and calculation of ECD spectra. Wakodecaline C has unique structural features containing a tetrahydrofuran-fused decalin skeleton and tetramic acid moiety, which are connected through a double bond. The compound showed moderate cytotoxicity against HL-60 cells and antimalarial activity against the Plasmodium falciparum 3D7 strain.
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Affiliation(s)
- Toshihiko Nogawa
- Molecular Structure Characterization Unit, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
- Chemica Biology Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Naoki Kato
- Faculty of Agriculture, Setsunan University, 45-1 Nagaotoge-cho, Hirakata, Osaka, 573-0101, Japan.
- Natural Product Biosynthesis Research Unit, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan.
| | - Takeshi Shimizu
- Chemica Biology Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Akiko Okano
- Chemica Biology Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Yushi Futamura
- Chemica Biology Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
- Waseda Research Institute for Science and Engineering, Waseda University, Tokyo, 169-8555, Japan
| | - Shunji Takahashi
- Natural Product Biosynthesis Research Unit, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Hiroyuki Koshino
- Molecular Structure Characterization Unit, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Hiroyuki Osada
- Chemica Biology Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
- Department of Pharmaceutical Sciences, University of Shizuoka, 52-1, Yada, Suruga-ku, Shizuoka, 422-8526, Japan
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Motoyama T, Nogawa T, Shimizu T, Kawatani M, Kashiwa T, Yun CS, Hashizume D, Osada H. Fungal NRPS-PKS Hybrid Enzymes Biosynthesize New γ-Lactam Compounds, Taslactams A-D, Analogous to Actinomycete Proteasome Inhibitors. ACS Chem Biol 2023; 18:396-403. [PMID: 36692171 DOI: 10.1021/acschembio.2c00830] [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: 01/25/2023]
Abstract
Proteasome inhibitors with γ-lactam structure, such as lactacystin and salinosporamide A, have been isolated from actinomycetes and have attracted attention as lead compounds for anticancer drugs. Previously, we identified a unique enzyme TAS1, which is the first reported fungal NRPS-PKS hybrid enzyme, from the filamentous fungus Pyricularia oryzae for the biosynthesis of a mycotoxin tenuazonic acid, a tetramic acid compound without γ-lactam structure. Homologues of TAS1 have been identified in several fungal genomes and classified into four groups (A-D). Here, we show that the group D TAS1 homologues from two filamentous fungi can biosynthesize γ-lactam compounds, taslactams A-D, with high similarity to actinomycete proteasome inhibitors. One of the γ-lactam compounds, taslactam C, showed potent proteasome inhibitory activity. In contrast to actinomycete γ-lactam compounds which require multiple enzymes for biosynthesis, the TAS1 homologue alone was sufficient for the biosynthesis of the fungal γ-lactam compounds.
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Affiliation(s)
- Takayuki Motoyama
- Chemical Biology Research Group, RIKEN Center for Sustainable Resource Science (CSRS), 2-1 Hirosawa, Saitama 351-0198, Japan
| | - Toshihiko Nogawa
- Molecular Structure Characterization Unit, RIKEN Center for Sustainable Resource Science (CSRS), 2-1 Hirosawa, Saitama 351-0198, Japan
| | - Takeshi Shimizu
- Chemical Biology Research Group, RIKEN Center for Sustainable Resource Science (CSRS), 2-1 Hirosawa, Saitama 351-0198, Japan
| | - Makoto Kawatani
- Chemical Biology Research Group, RIKEN Center for Sustainable Resource Science (CSRS), 2-1 Hirosawa, Saitama 351-0198, Japan.,Biomolecular Characterization Unit, RIKEN Center for Sustainable Resource Science (CSRS), 2-1 Hirosawa, Saitama 351-0198, Japan.,Chemical Resource Development Research Unit, RIKEN Center for Sustainable Resource Science (CSRS), 2-1 Hirosawa, Saitama 351-0198, Japan
| | - Takeshi Kashiwa
- Chemical Biology Research Group, RIKEN Center for Sustainable Resource Science (CSRS), 2-1 Hirosawa, Saitama 351-0198, Japan
| | - Choong-Soo Yun
- Chemical Biology Research Group, RIKEN Center for Sustainable Resource Science (CSRS), 2-1 Hirosawa, Saitama 351-0198, Japan
| | - Daisuke Hashizume
- Materials Characterization Support Team, RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Saitama 351-0198, Japan
| | - Hiroyuki Osada
- Chemical Biology Research Group, RIKEN Center for Sustainable Resource Science (CSRS), 2-1 Hirosawa, Saitama 351-0198, Japan.,Chemical Resource Development Research Unit, RIKEN Center for Sustainable Resource Science (CSRS), 2-1 Hirosawa, Saitama 351-0198, Japan.,Department of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yata, Suruga-ku, Shizuoka 422-8526, Japan
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29
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Tanifuji N, Shimizu T, Ida K, Nishio K, Tanaka M, Tsukaguchi Y, Tsubouchi K, Shimizu A, Hino EI, Date Y, Aoki K, Yoshikawa H. Assessment of Dye-Absorbed Eggshell Membrane Composites as Solid Polymer Electrolyte of Fuel Cells. Membranes (Basel) 2023; 13:115. [PMID: 36676922 PMCID: PMC9866477 DOI: 10.3390/membranes13010115] [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] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 01/08/2023] [Accepted: 01/13/2023] [Indexed: 06/17/2023]
Abstract
Recently, polymer electrolytes have been developed for high-performance and eco-friendly fuel cells. Among the candidates, eggshell membrane (ESM) has been promising because of its abundance to assemble various energy devices with low cost and its absorption ability of organic materials. In this work, we investigated fuel cells that included ESM-absorbing xanthene-, triphenylmethane-, and azo-type tar dye, which contained abundant hydrophilic groups, as polymer electrolytes. We found out two points: (1) that the fuel cells that included ESM-absorbing xanthene-type dye generated the highest I-V performance, and (2) the basic molecular structures of the tar dyes determined the correlation of the maximum power and proton conductivities.
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Affiliation(s)
- Naoki Tanifuji
- Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College, 4448 Hikona-cho, Yonago, Tottori 683-8502, Japan
| | - Takeshi Shimizu
- Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College, 4448 Hikona-cho, Yonago, Tottori 683-8502, Japan
| | - Kentaro Ida
- Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College, 4448 Hikona-cho, Yonago, Tottori 683-8502, Japan
| | - Kosuke Nishio
- Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College, 4448 Hikona-cho, Yonago, Tottori 683-8502, Japan
| | - Miki Tanaka
- Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College, 4448 Hikona-cho, Yonago, Tottori 683-8502, Japan
| | - Yuta Tsukaguchi
- Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College, 4448 Hikona-cho, Yonago, Tottori 683-8502, Japan
| | - Kentaro Tsubouchi
- Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College, 4448 Hikona-cho, Yonago, Tottori 683-8502, Japan
| | - Akihiro Shimizu
- Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College, 4448 Hikona-cho, Yonago, Tottori 683-8502, Japan
| | - Ei-ichi Hino
- Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College, 4448 Hikona-cho, Yonago, Tottori 683-8502, Japan
| | - Yusuke Date
- Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College, 4448 Hikona-cho, Yonago, Tottori 683-8502, Japan
| | - Kaoru Aoki
- Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College, 4448 Hikona-cho, Yonago, Tottori 683-8502, Japan
| | - Hirofumi Yoshikawa
- Department of Material Science, School of Engineering Kwansei Gakuin University, Gakuen 2-1, Sanda 669-1337, Japan
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Shimizu T, Tanifuji N, Nishio K, Tanaka Y, Tsukaguchi Y, Tsubouchi K, Nakamura F, Shokura N, Noguchi M, Fujimori H, Kimura-Suda H, Date Y, Aoki K, Yoshikawa H. Ultra-High-Capacity Lithium Metal Batteries Based on Multi-Electron Redox Reaction of Organopolysulfides including Conductive Organic Moieties. Polymers (Basel) 2023; 15:polym15020335. [PMID: 36679217 PMCID: PMC9866748 DOI: 10.3390/polym15020335] [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: 11/03/2022] [Revised: 12/15/2022] [Accepted: 12/22/2022] [Indexed: 01/11/2023] Open
Abstract
Recently, organic polysulfides have been synthesized as cathode active materials exceeding the battery performance of sulfur. However, the conventional organic polysulfides have exhibited capacities lower than the theoretical capacity of sulfur because the π-organic moieties do not conjugate with the sulfur chains. In this work, the organopolysulfides, synthesized via inverse vulcanization using disulfide compounds, exhibited higher capacities equal to the theoretical capacity of sulfur because of enhanced electronic conductivity based on the conjugation between organic moieties and sulfur chains. Furthermore, the organopolysulfide including 1,3-dhitiol-2-thione moiety exhibited the highest capacity because of the enhanced electronic conductivity. This finding will pave the way to develop next-generation rechargeable batteries.
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Affiliation(s)
- Takeshi Shimizu
- Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College, 4448 Hikona-cho, Yonago, Tottori 683-8502, Japan
- Correspondence: (T.S.); (N.T.)
| | - Naoki Tanifuji
- Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College, 4448 Hikona-cho, Yonago, Tottori 683-8502, Japan
- Correspondence: (T.S.); (N.T.)
| | - Kosuke Nishio
- Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College, 4448 Hikona-cho, Yonago, Tottori 683-8502, Japan
| | - Yuma Tanaka
- Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College, 4448 Hikona-cho, Yonago, Tottori 683-8502, Japan
| | - Yuta Tsukaguchi
- Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College, 4448 Hikona-cho, Yonago, Tottori 683-8502, Japan
| | - Kentaro Tsubouchi
- Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College, 4448 Hikona-cho, Yonago, Tottori 683-8502, Japan
| | - Fumiya Nakamura
- Graduate School of Science and Engineering, Chitose Institute of Science and Technology, 758-65 Bibi, Chitose 066-8655, Hokkaido, Japan
| | - Naoko Shokura
- Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College, 4448 Hikona-cho, Yonago, Tottori 683-8502, Japan
| | - Mariko Noguchi
- Department of Chemistry, College of Humanities and Sciences, Nihon University, 3-25-40 Sakurajosui, Setagaya-ku, Tokyo 156-8550, Japan
| | - Hiroki Fujimori
- Department of Chemistry, College of Humanities and Sciences, Nihon University, 3-25-40 Sakurajosui, Setagaya-ku, Tokyo 156-8550, Japan
| | - Hiromi Kimura-Suda
- Graduate School of Science and Engineering, Chitose Institute of Science and Technology, 758-65 Bibi, Chitose 066-8655, Hokkaido, Japan
| | - Yusuke Date
- Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College, 4448 Hikona-cho, Yonago, Tottori 683-8502, Japan
| | - Kaoru Aoki
- Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College, 4448 Hikona-cho, Yonago, Tottori 683-8502, Japan
| | - Hirofumi Yoshikawa
- Department of Material Science, School of Engineering Kwansei Gakuin University, Gakuen 2-1, Sanda 669-1337, Japan
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Isomatsu D, Sato A, Sakuma Y, Kurosawa Y, Muto Y, Sato Y, Kiko T, Shimizu T, Misaka T, Yoshihisa A, Yamaki T, Nakazato K, Ishida T, Takeishi Y. The Prognostic Implications of Living Alone on Long-Term Mortality in Patients with Chronic Coronary Syndrome after Percutaneous Coronary Intervention. Int Heart J 2023; 64:584-589. [PMID: 37518338 DOI: 10.1536/ihj.23-063] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/01/2023]
Abstract
Living alone is associated with increased cardiac events and mortality in patients with acute myocardial infarction. However, the prognostic impact of living alone with chronic coronary syndrome (CCS) still remains unclear. In the present study, we examined the relationship between living alone and long-term mortality in patients with CCS who underwent percutaneous coronary intervention (PCI).Consecutive 830 patients with CCS who underwent PCI were enrolled and divided into 2 groups according to whether or not they were living alone at the time of admission (living alone group and non-living alone group). We compared the clinical characteristics between the 2 groups and followed up cardiac mortality. The living alone group was younger compared with the non-living alone group (67.5 versus 70.7 years old, P = 0.017). The prevalence of comorbidities, including coronary risk factors, atrial fibrillation, heart failure, stroke, peripheral artery disease, coronary lesion characteristics, laboratory data, and left ventricular ejection fraction, were comparable between the 2 groups. During the follow-up period (median 1,622 days), 52 cardiac deaths occurred. In the Kaplan-Meier analysis, cardiac mortality was significantly higher in the living alone group than in the non-living alone group (24% versus 11%, P = 0.008). In the multivariable Cox proportional hazard analyses after adjusting for possible confounding factors, living alone was an independent predictor of cardiac mortality (hazard ratio, 2.426, 95% confidence interval 1.225-4.804, P = 0.011).Among CCS patients who underwent PCI, living alone was associated with high long-term cardiac mortality.
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Affiliation(s)
- Daisuke Isomatsu
- Department of Cardiovascular Medicine, Fukushima Medical University
| | - Akihiko Sato
- Department of Cardiovascular Medicine, Fukushima Medical University
| | - Yuya Sakuma
- Department of Cardiovascular Medicine, Fukushima Medical University
| | - Yuta Kurosawa
- Department of Cardiovascular Medicine, Fukushima Medical University
| | - Yuki Muto
- Department of Cardiovascular Medicine, Fukushima Medical University
| | - Yu Sato
- Department of Cardiovascular Medicine, Fukushima Medical University
| | - Takatoyo Kiko
- Department of Cardiovascular Medicine, Fukushima Medical University
| | - Takeshi Shimizu
- Department of Cardiovascular Medicine, Fukushima Medical University
| | - Tomofumi Misaka
- Department of Cardiovascular Medicine, Fukushima Medical University
| | - Akiomi Yoshihisa
- Department of Cardiovascular Medicine, Fukushima Medical University
- Department of Clinical Laboratory Sciences, Fukushima Medical University School of Health Science
| | - Takayoshi Yamaki
- Department of Cardiovascular Medicine, Fukushima Medical University
| | | | - Takafumi Ishida
- Department of Cardiovascular Medicine, Fukushima Medical University
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Yuta A, Ogawa Y, Kozaki H, Shimizu T. [CLINICAL EFFICACY OF SUBLINGUAL IMMUNOTHERAPY WITH CEDAR POLLEN IN A YEAR OF MASSIVE CEDAR POLLEN DISPERSAL AND ITS EFFECT ON JAPANESE CYPRESS POLLINOSIS]. Arerugi 2023; 72:1230-1239. [PMID: 38092399 DOI: 10.15036/arerugi.72.1230] [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] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
BACKGROUND We investigated the effect of sublingual immunotherapy (SLIT) on Japanese cedar and cypress pollinosis in a mass scattering year of cedar pollen (total counts: 12353 grains/cm2, approximately four times the average). METHODS SLIT patients of 84 in the first year, 107 in the second year and 67 in the third year treated with Cedarcure® were included. During the 2023 cedar and cypress pollen dispersal season, nasal and eye symptoms and general symptoms were examined using a visual analog scale (VAS). RESULTS The VAS during the cedar season significantly decreased to improve with the number of years of SLIT, but the VAS during the cypress period slightly increased. A questionnaire survey before SLIT revealed that only 0.9% to 3.6% of patients had strong cypress symptoms. However, sneezing (p<0.01), rhinorrhea, itchy eyes and total symptoms (p<0.05) in the third year of SLIT were significantly stronger during the cypress period than during the cedar period. The VAS of total symptoms during the Japanese cedar pollen season were not affected by the pollen count, and the cure rate was affected by SLIT in the third year. CONCLUSION The clinical efficacy of cedar SLIT on cedar pollinosis was high even in a mass scattering year, and the effect increased with the number of years of treatment. On the other hand, it was shown that the clinical efficacy on cypress pollinosis was insufficient.
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Affiliation(s)
- Atsushi Yuta
- Yuta Clinic
- Department of Otorhinolaryngology, Shiga University of Medical Science
| | | | - Hideaki Kozaki
- Department of Otorhinolaryngology, Shiga University of Medical Science
| | - Takeshi Shimizu
- Department of Otorhinolaryngology, Shiga University of Medical Science
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Yuta A, Ogawa Y, Kozaki H, Shimizu T. [CLINICAL EFFICASY OF HOUSE DUST MITE SUBLINGUAL IMMUNOTHERAPY WITH MITICURE ® TABLETS IN 115 PAITENTS FOR 3 YEARS]. Arerugi 2023; 72:273-280. [PMID: 37225468 DOI: 10.15036/arerugi.72.273] [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] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
We reported the results of three years of house dust mite sublingual immunotherapy with Miticure® tablets. METHODS Subjects of 115 cases (63 males, median 12.9 years old, 74 children under 15 years old) were evaluated with Japanese Rhino-conjunctivitis Quality of Life Questionnaire No1 (JRQLQ No1) and visual analog scale (VAS) of 100mm length for rhino-ocular and general symptoms. Annual survey was conducted for three years. RESULTS Symptoms in all items of 1 to 3 years later by JRQLQ No1 and VAS were significantly improved (p<0.01). There was no difference from 1 year to 3 years later. The VAS value for total symptoms decreased from 41 (18-70) mm before treatment to 10 (4-40) mm after 1 year and 10 (3-30) mm after 3 years (median (IQR)). Concomitant medications used in all patients at the start of treatment were not needed in 60.8% after 1 year and 65.2% after 3 years. After 3 years, 16.5% of the patients were completely cured with no concomitant medication and had a symptom score of 0, and 53.0% were in remission with a score of 1 or less. There was no difference in all items between children and adults, and symptoms improved equally. CONCLUSION The efficacy of house dust mite sublingual immunotherapy from 1 to 3 years was demonstrated.
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Affiliation(s)
- Atsushi Yuta
- Yuta Clinic
- Department Otorhinolaryngology, Shiga University of Medical Science
| | | | - Hideaki Kozaki
- Department Otorhinolaryngology, Shiga University of Medical Science
| | - Takeshi Shimizu
- Department Otorhinolaryngology, Shiga University of Medical Science
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Ito M, Kamata M, Shimizu T, Uchida H, Egawa S, Takeshima R, Mizukawa I, Watanabe A, Tada Y. 400 308-nm excimer lamp ameliorates MC-903 induced atopic dermatitis with a reduction of thymic stromal lymphopoietin mRNA levels. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.09.413] [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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Kurosawa Y, Shimizu T, Ando T, Akama J, Muto Y, Kimishima Y, Kiko T, Sato A, Misaka T, Yoshihisa A, Yamaki T, Nakazato K, Ishida T, Takeishi Y. The Prognostic Impact of D-Dimer on Long-Term Mortality in Patients with Coronary Artery Disease after Percutaneous Coronary Intervention. Int Heart J 2022; 63:1070-1077. [DOI: 10.1536/ihj.22-377] [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: 12/02/2022]
Affiliation(s)
- Yuta Kurosawa
- Department of Cardiovascular Medicine, Fukushima Medical University
| | - Takeshi Shimizu
- Department of Cardiovascular Medicine, Fukushima Medical University
| | - Takuya Ando
- Department of Cardiovascular Medicine, Fukushima Medical University
| | - Joh Akama
- Department of Cardiovascular Medicine, Fukushima Medical University
| | - Yuki Muto
- Department of Cardiovascular Medicine, Fukushima Medical University
| | - Yusuke Kimishima
- Department of Cardiovascular Medicine, Fukushima Medical University
| | - Takatoyo Kiko
- Department of Cardiovascular Medicine, Fukushima Medical University
| | - Akihiko Sato
- Department of Cardiovascular Medicine, Fukushima Medical University
| | - Tomofumi Misaka
- Department of Cardiovascular Medicine, Fukushima Medical University
| | - Akiomi Yoshihisa
- Department of Cardiovascular Medicine, Fukushima Medical University
| | - Takayoshi Yamaki
- Department of Cardiovascular Medicine, Fukushima Medical University
| | | | - Takafumi Ishida
- Department of Cardiovascular Medicine, Fukushima Medical University
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Zheng M, Wang X, Latiff AHA, Shah A, Pham DL, Kim DY, Oh JW, Wang JY, Ruxrungtham K, Recto M, Poerbonegoro NL, Logi N, Munkhbayarlakh S, Leung TF, Shimizu T, Chiang WC, Kamchaisatian W, Pawankar R, Zhang L. An online survey of clinical practice for allergic rhinitis among the Asia-Pacific representatives. Asian Pac J Allergy Immunol 2022. [PMID: 36278781 DOI: 10.12932/ap-310322-1361] [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: 11/15/2022]
Abstract
BACKGROUND Physicians' knowledge and practice which are consistent with evidence-based guidelines can improve allergic rhinitis (AR) patients' care. Compared with western countries, the available literature about Asian doctors' perceptions and clinical practices regarding Allergic Rhinitis and its Impacts on Asthma (ARIA) guidelines is limited. OBJECTIVE To collect detailed information about the practical management patterns specific for AR patients and investigate compliance with ARIA in the clinical practice of Asian physicians and elucidate the possible inadequacy in the existing ARIA guidelines. METHODS An e-mail with a structured questionnaire was sent to members of the Asia-Pacific Association of Allergy, Asthma and Clinical Immunology. The questionnaire consisted of doctors' characteristics, environment of medical practice, routine clinical practice following ARIA guidelines and patients' adherence to the prescription. RESULTS Physicians from 14 countries and regions sent valid questionnaires back, 94.12% of whom were senior doctors with more than 10 years of experience. 88.24% of doctors diagnosed AR depending on the history combined with allergy tests. 82.35% of participants employed the classification criteria by ARIA. 94.12%, 88.24% and 41.8% of respondents recommended intranasal corticosteroids, oral antihistamines and leukotriene receptor antagonists as first-line medications. 5.88% treated perennial AR by intranasal corticosteroids alone. 11.76% of clinicians recommended no allergen immunotherapy (AIT) or biologics and 58.82% of interviewees reported AR patients occasionally or sometimes agreed with the recommendation of AIT. CONCLUSIONS There was high compliance with ARIA guidelines in Asian senior physicians' actual notion and practice in the management of AR. New-generation ARIA guidelines are imperative for unmet needs.
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Affiliation(s)
- Ming Zheng
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Xiangdong Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Department of Allergy, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Beijing Laboratory of Allergic Diseases and Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otorhinolaryngology, Beijing, China
- Research Unit of Diagnosis and Treatment of Chronic Nasal Diseases, Chinese Academy of Medical Sciences, Beijing, China
| | | | - Ashok Shah
- Department of Pulmonary Medicine, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi, India
| | - Duy Le Pham
- Faculty of Medicine, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Viet Nam
| | - Dong Young Kim
- Division of Infectious Diseases, Department of Inernal Medicine, Kyung Hee University Hospital, Kyung Hee University School of Medicine, Seoul, Republic of Korea
| | - Jae Won Oh
- Department of Pediatrics, Hanyang University Guri Hospital, Gyunggi-Do, Korea
| | - Jiu Yao Wang
- Research Center for Allergy, Immunology, and Microbiome (A.I.M.), China Medical University Children's Hospital, Taichung, Taiwan
| | - Kiat Ruxrungtham
- Chula Vaccine Research Center, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand and Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Marysia Recto
- Adult and Pediatric Division of Allergy and Immunology, University of the Philippines - Philippine General Hospital, Manila, Philippenes
| | - Niken Lestari Poerbonegoro
- Department of Otorhinolaryngology-Head and Neck Surgery, Faculty of Medicine Universitas Indonesia / Dr. Cipto Mangunkusumo Hospital, Jakarta, Indonesia
| | - Narantsetseg Logi
- Department of Pulmonology and Allergology, School of Medicine, Mongolian National University of Medical Sciences, Ulaanbaatar, Mongolia
| | - Sonomjamts Munkhbayarlakh
- Department of Pulmonology and Allergology, School of Medicine, Mongolian National University of Medical Sciences, Ulaanbaatar, Mongolia
| | - Ting Fan Leung
- Department of Pediatrics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong China
| | - Takeshi Shimizu
- Department of Otorhinolaryngology, Shiga University of Medical Science, Otsu, Japan
| | - Wen Chin Chiang
- Allergy Service, Department of Paediatric Medicine, KK Women's and Children's Hospital, Singapore
| | - Wasu Kamchaisatian
- Division of Allergy and Immunology, Department of Pediatrics, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Ruby Pawankar
- Department of Pediatrics, Nippon Medical School, Tokyo, Japan
| | - Luo Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Department of Allergy, Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Beijing Laboratory of Allergic Diseases and Beijing Key Laboratory of Nasal Diseases, Beijing Institute of Otorhinolaryngology, Beijing, China
- Research Unit of Diagnosis and Treatment of Chronic Nasal Diseases, Chinese Academy of Medical Sciences, Beijing, China
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Sakuma Y, Nakazato K, Shimizu T, Ikeda A, Ohara H, Kobayashi A, Yamaki T, Ishida T, Takeishi Y. A rare case of fibromuscular dysplasia with multifocal coronary artery involvement evaluated by intravascular ultrasound. J Cardiol Cases 2022; 27:12-15. [PMID: 36618844 PMCID: PMC9808457 DOI: 10.1016/j.jccase.2022.09.011] [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: 05/06/2022] [Revised: 08/25/2022] [Accepted: 09/11/2022] [Indexed: 11/07/2022] Open
Abstract
Fibromuscular dysplasia (FMD) is non-atherosclerotic, non-inflammatory vascular disease that results in arterial stenosis. The lesions in FMD are commonly found in the renal and extracranial carotid and vertebral arteries, but the prevalence of FMD with lesions in the coronary artery is unclear. Although the vascular morphology of coronary artery lesion in FMD is mostly dissection, the following case of FMD showed the stenotic and aneurysmal lesions in coronary arteries, which was treated by percutaneous coronary angioplasty. Several vascular imaging modalities including computed tomographic angiography and catheter angiography are used for diagnosing FMD, however, the intravascular ultrasound (IVUS) imaging of the coronary artery in FMD has not been well studied. Here we describe a rare case of FMD involving multifocal coronary artery lesions with coronary aneurysm which was evaluated by IVUS imaging. Learning objective The vascular morphologies of coronary artery lesion in fibromuscular dysplasia (FMD) mostly appear as coronary dissection, however, multifocal stenotic and aneurysmal lesions can occur in coronary arteries in FMD as the following case shows. The intravascular ultrasound findings of the stenotic coronary lesions in FMD, that were circumferential thickening of intima with various echo patterns and echolucent circumferential thickened media, may help in the diagnosis of FMD involving coronary arteries.
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Affiliation(s)
| | | | - Takeshi Shimizu
- Corresponding author at: Department of Cardiovascular Medicine, Fukushima Medical University, 1 Hikarigaoka, Fukushima 960-1295, Japan.
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Shiraki A, Oyama J, Shimizu T, Node N. The DPP4 inhibitor linagliptin exacerbated heart failure due to energy deficiency via downregulation of glucose absorption and utilization in mice. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2682] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
It was reported that glucagon-like peptide-1 has cardio-protective effects, however, the occurrence of heart failure was increased with DPP4 inhibitor in some large clinical trials.
Purpose
The purpose of the present work was to clarify whether DPP4 inhibitor had any effects on chronic, dilated heart failure and to identify the mechanisms.
Methods
Heart / Muscle-specific Manganese superoxide dismutase (Mn-SOD)-deficient mice, (H/M-Sod−/−) which exert dilated cardiomyopathy were randomized to receive low dose (1 mg/kg) linagliptin, HF-L group; high dose (10 mg/kg) linagliptin, HF-H group; mixed with food, or normal food, HF group; for eight weeks. Then, evaluation was performed in cardiac function and pathophysiological changes.
Result
Interestingly, the mice treated with linagliptin treatment exhibited shorter life span and greater heart/body weight ratio. Echocardiographic studies showed decreased contractility in the HF-H group with compared to the HF control group. In Sirius Red staining, severer fibrosis was also observed in the linagliptin groups. HbA1c levels did not change among three groups, however, glycogen content in the liver was significantly decreased in the linagliptin groups. Similarly, indirect calorimetry showed decreased carbohydrate consumption in the HF-H group compared to the HF control group, suggesting worsening of heart failure was due to unavailability of carbohydrates as an energy source. Therefore, we fed a diet containing 33 wt% glucose to the HF-H group as complementary experiments. As a result, adequate glucose supplementation reduced cardiac fibrosis and cardiac function, while worsened life span, HbA1c levels and CHO consumption were not changed. Therefore, we hypothesized that there might be a change in the absorption of glucose in intestine or utilization ability of glucose in body another experiments were performed. 13C, which was released from mice after the oral administration of 13C glucose and measured by respiratory gas analysis, was significantly reduced in HF-H mice. The measurements the amount of 13C in feces revealed increased levels of unabsorbed glucose by linagliptin treatment in HF. In addition, GLUT2, a glucose transporter, in small intestine, was downregulated in the HF-H and the HF-HG groups. On the other hand, the cardiac uptake of Deoxy-D-glucose, 2-[1,2-3H(N)] (3H-2DG), which was injected from mice tail vein, was not different between in the HF-H group and in the HF control group. Taken together, linagliptin treatment may inhibit glucose transport in intestine in HF.
Conclusions
Linagliptin treatment exacerbated heart failure, resulting in shortened life span, worsened cardiac function, and fibrosis of the myocardium. DPP4 inhibitor may promote the cardiac cachexia and exacerbate heart failure at least, in part, through modification of glucose absorption and utilization.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
| | - J Oyama
- Saga University , Saga , Japan
| | - T Shimizu
- National Center for Geriatrics and Gerontology , Obu , Japan
| | - N Node
- Saga University , Saga , Japan
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Nemoto N, Samejima Y, Takenaka H, Yaguchi T, Kameda Y, Shimizu T, Sahara N, Takenaka H, Nagashima Y, Anzai H. The impact of right atrium and left atrium reverse remodeling for functional regurgitation of atrioventricular valve among patients who were underwent ablation for atrial fibrillation. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1653] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Atrial fibrillation (AF) is a risk factor of Regurgitation of Atrioventricular Valve and Regurgitation of Atrioventricular Valve is improved after ablation for AF. However, Mechanism of improvement of Tricuspid regurgitation (TR) and Mitral regurgitation (MR) after ablation for AF were unclear.
Methods
The one hundred fifty-seven cases consecutive patients who were underwent ablation for persistent AF were examined in this study. These patients were performed Holter ECG and Echocardiography 6 months after ablation for persistent AF. The area of the Right Atrium (RA), Left Atrium (LA), diameter of the tricuspid valve anulus and Mitral valve annulus, were measured by echocardiography at before and 6 months after ablation for AF. The reverse remodeling index (RRI) was defined as divided post area of RA and LA by pre area of RA and LA. The Improved group was defined as one or more than regurgitation grade improvements.
Results
TR improved in 56 cases (35.7%) of 157 cases and MR improved in 25 (16.6%) cases of 157 cases. The ratio of improved TR was significantly higher than ratio of improved MR (p<0.01). The difference in tricuspid annulus diameter before and after ablation for AF was significantly longer in TR improved group than in TR non-improved group. (4.9±5.3 mm vs 1.6±5.4 mm, p<0.01). The RRI of RA in TR improved group was significantly smaller than in TR non-improved group (0.73±0.19 vs 0.89±0.26 p<0.01). The difference in mitral annulus diameter before and after ablation for AF was not significant differences between MR improved group and MR non-improved group. The RRI of LA in MR improved group was significantly smaller than in MR non-improved group (0.79±0.22 vs 0.90±0.25 p<0.01). The RRI of RA was significantly smaller than RRI of LA among patients who were able to maintain sinus rhythm after ablation for persistent AF (0.79±0.23 vs 0.85±0.24 p=0.04).
Conclusion
Reverse remodeling of RA was higher than Reverse remodeling of LA among patients who were able to maintain sinus rhythm after ablation for persistent AF and Reverse remodeling of RA and LA were important factors of improvement of TR and MR after ablation for persistent AF. These results considered to be the cause why the improvement rate of TR was higher than the Improvement rate of MR after persistent AF.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- N Nemoto
- Ota Memorial Hospital , Ota-Shi , Japan
| | | | | | - T Yaguchi
- Ota Memorial Hospital , Ota-Shi , Japan
| | - Y Kameda
- Ota Memorial Hospital , Ota-Shi , Japan
| | - T Shimizu
- Ota Memorial Hospital , Ota-Shi , Japan
| | - N Sahara
- Ota Memorial Hospital , Ota-Shi , Japan
| | | | | | - H Anzai
- Ota Memorial Hospital , Ota-Shi , Japan
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Tojima I, Murao T, Nakamura K, Arai H, Matsumoto K, Shimizu S, Kouzaki H, Shimizu T. Increased blood group 2 innate lymphoid cells are associated with the clinical severity of Kimura disease. Allergol Int 2022; 72:339-342. [PMID: 36283928 DOI: 10.1016/j.alit.2022.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 09/14/2022] [Accepted: 09/22/2022] [Indexed: 11/17/2022] Open
Affiliation(s)
- Ichiro Tojima
- Department of Otorhinolaryngology-Head and Neck Surgery, Shiga University of Medical Science, Otsu, Japan.
| | - Takuya Murao
- Department of Otorhinolaryngology-Head and Neck Surgery, Shiga University of Medical Science, Otsu, Japan
| | - Keigo Nakamura
- Department of Otorhinolaryngology-Head and Neck Surgery, Shiga University of Medical Science, Otsu, Japan
| | - Hiroyuki Arai
- Department of Otorhinolaryngology-Head and Neck Surgery, Shiga University of Medical Science, Otsu, Japan
| | - Koji Matsumoto
- Department of Otorhinolaryngology-Head and Neck Surgery, Shiga University of Medical Science, Otsu, Japan
| | - Shino Shimizu
- Department of Otorhinolaryngology-Head and Neck Surgery, Shiga University of Medical Science, Otsu, Japan
| | - Hideaki Kouzaki
- Department of Otorhinolaryngology-Head and Neck Surgery, Shiga University of Medical Science, Otsu, Japan
| | - Takeshi Shimizu
- Department of Otorhinolaryngology-Head and Neck Surgery, Shiga University of Medical Science, Otsu, Japan
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Zhang Y, Li S, Uenaka T, Furuuchi K, Yonemori K, Shimizu T, Nishio S, Yunokawa M, Matsumoto K, Takehara K, Hasegawa K, Hirashima Y, Kato H, Otake Y, Miura T, Matsui J. Phase I Biomarker Analysis Results of MORAb-202 (Farletuzumab Ecteribulin) Effects on Vascular Remodeling and Immune Modulation in Patients With Ovarian Cancer. Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)01032-2] [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: 11/03/2022]
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Shimizu T, Kanno Y, Yamagata T, Ohira T, Harada Y, Ito K. Supplementary uses for a novel injecting needle-knife that facilitate esophagogastric endoscopic submucosal dissection. Endoscopy 2022; 55:E29-E30. [PMID: 36138530 PMCID: PMC9812667 DOI: 10.1055/a-1931-4214] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Takeshi Shimizu
- Department of Gastroenterology, Sendai City Medical Center, Sendai, Japan
| | - Yoshihide Kanno
- Department of Gastroenterology, Sendai City Medical Center, Sendai, Japan
| | - Taku Yamagata
- Department of Gastroenterology, Sendai City Medical Center, Sendai, Japan
| | - Tetsuya Ohira
- Department of Gastroenterology, Sendai City Medical Center, Sendai, Japan
| | - Yoshihiro Harada
- Department of Gastroenterology, Sendai City Medical Center, Sendai, Japan
| | - Kei Ito
- Department of Gastroenterology, Sendai City Medical Center, Sendai, Japan
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Shimizu T, Tanifuji N, Yoshikawa H. Azo Compounds as Active Materials of Energy Storage Systems. Angew Chem Int Ed Engl 2022; 61:e202206093. [DOI: 10.1002/anie.202206093] [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] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Takeshi Shimizu
- National Institute of Technology Yonago College 4448 Hikona-cho Yonago Tottori 683-8502 Japan
| | - Naoki Tanifuji
- National Institute of Technology Yonago College 4448 Hikona-cho Yonago Tottori 683-8502 Japan
| | - Hirofumi Yoshikawa
- School of Engineering Kwansei Gakuin University Gakuen 2-1 Sanda 669-1337 Japan
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Rotow J, Yoh K, Powderly J, Shimizu T, Perets R, Paz-Ares L, Phillips A, Souers A, Ansell P, Jin J, Badawi M, Saab R, Morrison-Thiele G, Jeffries S, Neagu Aristide M, Carneiro B, Papadopoulos K. 1185TiP First-in-human phase I study of ABBV-637 as monotherapy and in combination in patients with relapsed and refractory solid tumors. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1308] [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: 11/01/2022] Open
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Hirai S, Yokoyama E, Shiwa Y, Ishige T, Ando N, Shimizu T, Murakami S. Clarification of relationship between single-nucleotide polymorphism panels of Shiga toxin-producing Escherichia coli O157:H7/H- strains. J Vet Med Sci 2022; 84:1399-1405. [PMID: 35989264 PMCID: PMC9586023 DOI: 10.1292/jvms.22-0242] [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] [Indexed: 11/22/2022] Open
Abstract
Eighty strains of enterohemorrhagic Escherichia coli O157:H7/H- were
analyzed by three single-nucleotide polymorphism (SNP) panels using whole-genome
sequencing data. The partial concordance of SNP types among the different SNP panels was
observed on minimum spanning trees reconstructed with SNP data. As for lineage I/II
strains, some of the clade 7 strains belonged to one unique SNP type as determined by
three panels, suggesting that clade 7 should be divided into at least two genotypes,
namely, the unique type and the rest. In addition, clade 8 contained two unique genotypes,
which was consistent with the previous prediction. Similarly, for lineage II, clade 12
should be divided into three genotype strains. In contrast, many strains of several clades
belonging to lineage I were clustered into the same node on each minimum spanning tree
upon testing with the three SNP panels. Previous studies reported that lineage I diverged
more recently than lineages I/II and II. Such low diversity in lineage I in this study may
have arisen because this lineage has not accumulated SNPs because of its relatively recent
divergence. Based on the concordance observed in this study, some of the previously
published O157 genotype distribution data were successfully interpreted to clarify the
clade distribution, which was well supported by previous literature.
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Affiliation(s)
- Shinichiro Hirai
- Center for Emergency Preparedness and Response, National Institute of Infectious Diseases
| | - Eiji Yokoyama
- Center for Emergency Preparedness and Response, National Institute of Infectious Diseases.,Division of Bacteriology, Chiba Prefectural Institute of Public Health
| | - Yuh Shiwa
- NODAI Genome Research Center, Tokyo University of Agriculture.,Department of Molecular Microbiology, Faculty of Life Sciences, Tokyo University of Agriculture
| | - Taichiro Ishige
- NODAI Genome Research Center, Tokyo University of Agriculture
| | - Naoshi Ando
- Division of Bacteriology, Chiba Prefectural Institute of Public Health
| | - Takeshi Shimizu
- Department of Molecular Infectiology, Graduate School of Medicine, Chiba University
| | - Satoshi Murakami
- Laboratory of Animal Health, Department of Animal Science, Tokyo University of Agriculture
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Maeno H, Suzuki-Horiuchi Y, Funakoshi A, Shimizu T, Satou Y, Ishii T, Seykora J. LB1004 miR-4521 is over-expressed in human lentigos and downregulates components of the autophagic pathway in keratinocytes. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.1030] [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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Cho N, Kikuzato K, Futamura Y, Shimizu T, Hayase H, Kamisaka K, Takaya D, Yuki H, Honma T, Niikura M, Kobayashi F, Watanabe N, Osada H, Koyama H. New antimalarials identified by a cell-based phenotypic approach: Structure-activity relationships of 2,3,4,9-tetrahydro-1H-β-carboline derivatives possessing a 2-((coumarin-5-yl)oxy)alkanoyl moiety. Bioorg Med Chem 2022; 66:116830. [PMID: 35594648 DOI: 10.1016/j.bmc.2022.116830] [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: 03/28/2022] [Revised: 05/10/2022] [Accepted: 05/10/2022] [Indexed: 11/24/2022]
Abstract
The identification, structure-activity relationships (SARs), and biological effects of new antimalarials consisting of a 2,3,4,9-tetrahydro-1H-β-carboline core, a coumarin ring, and an oxyalkanoyl linker are described. A cell-based phenotypic approach was employed in this search for novel antimalarial drugs with unique modes of action. Our screening campaign of the RIKEN compound library succeeded in the identification of the known tetrahydro-β-carboline derivative (4e) as a hit compound showing significant in vitro activity. SAR studies on this chemical series led to the discovery of compound 4h having a (R)-methyl group on the oxyacetyl linker with potent inhibition of parasite growth (IC50 = 2.0 nM). Compound 4h was also found to exhibit significant in vivo antimalarial effects in mouse models. Furthermore, molecular modeling studies on 4e, 4h, and its diastereomer (4j) suggested that the (R)-methyl group of 4h forces the preferential adoption of a specific conformer which is considered to be an active conformer.
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Affiliation(s)
- Nobuo Cho
- RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Ko Kikuzato
- RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Yushi Futamura
- RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Takeshi Shimizu
- RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Hiroki Hayase
- RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Kikuko Kamisaka
- RIKEN Center for Biosystems Dynamic Research, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Daisuke Takaya
- RIKEN Center for Biosystems Dynamic Research, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Hitomi Yuki
- RIKEN Center for Biosystems Dynamic Research, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Teruki Honma
- RIKEN Center for Biosystems Dynamic Research, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Mamoru Niikura
- Department of Infectious Diseases, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka, Tokyo 181-8611, Japan
| | - Fumie Kobayashi
- Department of Environmental Science, School of Life and Environmental Science, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan
| | - Nobumoto Watanabe
- RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
| | - Hiroyuki Osada
- RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Hiroo Koyama
- RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
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Ogawa T, Matsumoto K, Tojima I, Kikuoka H, Hira D, Shimizu T. Therapeutic Potential of Valproic Acid for Postviral Olfactory Dysfunction: A Single-Arm Pilot Study. Ann Otol Rhinol Laryngol 2022; 132:709-714. [PMID: 35833237 DOI: 10.1177/00034894221111245] [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: 11/17/2022]
Abstract
OBJECTIVES Although some patients with postviral olfactory dysfunction (PVOD) recover spontaneously, many others are left with the degree of smell loss and there are no established drugs for the treatment of patients with PVOD. Valproic acid (VPA) has been widely used for the treatment of epilepsy. Its potential neuroregenerative effects have been shown via animal studies. This is the first study to treat PVOD patients with VPA. This open-label, single-arm, phase II study was conducted to investigate the effects of VPA in patients with PVOD. METHODS The patients received oral tablets of VPA 200 mg twice a day for 24 weeks. In total, 11 patients with PVOD were recruited. Oder scores of recognition and detection threshold (measured with a T&T olfactometer), and visual analog scale were examined during the treatment. RESULTS All odor scores significantly improved over time. Although the mean duration of olfactory dysfunction in this study was 11.5 months, both odor recognition threshold and odor detection threshold scores significantly improved 4 weeks after treatment initiation compared to the pre-treatment threshold scores. The olfactory recovery rates in patients treated with VPA were clearly better than those we previously reported in PVOD patients who received Toki-shakuyaku-san, the traditional treatment in Japan. The olfactory recovery rates of patients with PVOD at 12 weeks and 24 weeks of VPA treatment were both 77.8%, and the olfactory cure rates at 12 weeks and 24 weeks of VPA treatment were 33.3% and 44.4%, respectively. No serious adverse events were observed. CONCLUSIONS VPA seems to be a safe treatment option in patients with PVOD. The effects of VPA treatment for PVOD patients should be studied with a controlled study design in the future.
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Affiliation(s)
- Takao Ogawa
- Department of Otorhinolaryngology, Shiga University of Medical Science, Shiga, Japan
| | - Koji Matsumoto
- Department of Otorhinolaryngology, Shiga University of Medical Science, Shiga, Japan
| | - Ichiro Tojima
- Department of Otorhinolaryngology, Shiga University of Medical Science, Shiga, Japan
| | - Hirotaka Kikuoka
- Department of Otorhinolaryngology, Shiga University of Medical Science, Shiga, Japan
| | - Daiki Hira
- Department of Pharmacy, Kyoto University Hospital, Kyoto, Japan
| | - Takeshi Shimizu
- Department of Otorhinolaryngology, Shiga University of Medical Science, Shiga, Japan
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Ebata A, Nakano Y, Ujiie G, Ishii Y, Shimizu T, Fujii T, Mizuno K. Birth Weight Standard Deviation Score is a Significant Determinant of Serum Urotensin-II Levels at Term-Equivalent Age in Preterm Infants. Am J Perinatol 2022; 39:959-964. [PMID: 33242908 DOI: 10.1055/s-0040-1721132] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVE Urotensin II (U-II) is a potent vasoconstrictor peptide, and increased U-II levels are associated with atherosclerosis and hypertension in adults. Low birth weight (LBW) infants have higher risks of such diseases in the future. A small number of nephrons is one of possible mechanism underlying these risks in LBW infants, while vascular elasticity and cardiac function might be another important factor. The objective of this study is to evaluate U-II levels in preterm LBW infants at an early stage of life and determine perinatal factors associated with U-II levels. STUDY DESIGN The study population consisted of 57 preterm LBW infants (26 males and 31 females), including 49 appropriate for gestational age (AGA) and 8 small for gestational age (SGA) infants, born at a gestational age of ≤34 weeks with a mean birth weight of 1,589 g. Serum U-II levels were measured at term-equivalent age to evaluate perinatal factors related to serum U-II levels. RESULTS Preterm SGA infants had significantly higher serum U-II levels than preterm AGA infants at term-equivalent age (p = 0.019). Serum U-II levels in preterm LBW infants at term-equivalent age were inversely correlated with birth weight standard deviation (SD) score in a simple regression analysis (r = - 0.395, p = 0,002) and the correlation was maintained in the multiple regression analysis. CONCLUSION Our results indicate that birth weight SD score might be associated with serum U-II levels in preterm LBW infants at term-equivalent age. Further studies are required to determine whether U-II levels at an early stage of life might influence the risk of atherosclerosis and hypertension. KEY POINTS · U-II is a potent vasoconstrictor.. · We evaluated serum U-II levels in preterm infants.. · Fetal growth is negatively related to serum U-II levels..
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Affiliation(s)
- Akio Ebata
- Department of Pediatrics, Showa University School of Medicine, Tokyo, Japan
| | - Yuya Nakano
- Department of Pediatrics, Showa University School of Medicine, Tokyo, Japan
| | - Gakuto Ujiie
- Department of Pediatrics, Showa University School of Medicine, Tokyo, Japan
| | - Yoko Ishii
- Department of Pediatrics, Showa University School of Medicine, Tokyo, Japan
| | - Takeshi Shimizu
- Pediatric Heart Disease and Adult Congenital Heart Disease Center, Showa University Hospital, Tokyo, Japan
| | - Takanari Fujii
- Pediatric Heart Disease and Adult Congenital Heart Disease Center, Showa University Hospital, Tokyo, Japan
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Shimizu T, Tanifuji N, Yoshikawa H. Azo Compounds as Active Materials of Energy Storage Systems. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202206093] [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] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Takeshi Shimizu
- National Institute of Technology Yonago College Depat. of Materials Science JAPAN
| | - Naoki Tanifuji
- National Institute of Technology Yonago College Dept. of Chemistry JAPAN
| | - Hirofumi Yoshikawa
- Kansei Gakuin Daigaku - Kobe Sanda Campus Department of Science and Technology 2-1 Gakuen 669-1337 Sanda JAPAN
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