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Kuwabara S, Takeuchi Y, Sato O, Mizota T, Ichinokawa M, Murakawa K, Aoki Y, Ishido K, Ono K, Hirano S. Prognostic value of combined psoas muscle mass and controlling nutritional status in patients with pancreatic ductal adenocarcinoma: a retrospective cohort study. BMC Surg 2024; 24:116. [PMID: 38643112 PMCID: PMC11031959 DOI: 10.1186/s12893-024-02395-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 03/22/2024] [Indexed: 04/22/2024] Open
Abstract
BACKGROUND Pancreatic ductal carcinoma (PDAC) is an extremely poor prognostic disease. Even though multidisciplinary treatment for PDAC has developed, supportive therapies, such as nutritional therapy or perioperative rehabilitation to sustain and complete aggressive treatment, have not yet been well-established in PDAC. The aim of this study was to elucidate the relationship between the combined index using psoas muscle mass index (PMI) values and controlling nutritional status (CONUT) score and prognosis. METHODS We included 101 patients diagnosed with PDAC who underwent radical pancreatectomy with regional lymphadenectomy. The cut-off value was set at the first quartile (male, 6.3 cm2/m2; female 4.4 cm2/m2), and patients were classified into high PMI and low PMI groups. A CONUT score of 0 to 1 was classified as the normal nutritional status group, and 2 or more points as the malnutritional status group. Patients were further divided into three groups: high PMI and normal nutrition (good general condition group), low PMI and low nutrition (poor general condition group), and none of the above (moderate general condition group). We performed a prognostic analysis of overall survival (OS), stratified according to PMI values and CONUT scores. RESULTS In the poor general condition group, the proportion of elderly people over 70 years of age was significantly higher than that in the other groups (p < 0.001). The poor general condition group had a significantly worse prognosis than the good and moderate general condition groups (p = 0.012 and p = 0.037). The 5-year survival rates were 10.9%, 22.3%, and 36.1% in the poor, moderate, and good general condition groups, respectively. In multivariate analysis, poor general condition, with both low PMI and malnutrition status, was an independent poor prognostic factor for postoperative OS (hazard ratio 2.161, p = 0.031). CONCLUSIONS The combination of PMI and CONUT scores may be useful for predicting the prognosis of patients with PDAC after radical surgery.
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Affiliation(s)
- Shota Kuwabara
- Department of Surgery, Obihiro Kosei General Hospital, 1 West 14 South 10, Obihiro, 080-0024, Hokkaido, Japan.
- Department of Surgery, Asahikawa Red Cross Hospital, 1-1 Akebono 1-jo 1-chome, Asahikawa, 070-8530, Hokkaido, Japan.
- Department of Gastrointestinal Surgery II, Hokkaido University Faculty of Medicine, Kita 15-jo Nishi 7-chome, Kita-ku, Asahikawa, 070-8530, Hokkaido, Japan.
| | - Yuta Takeuchi
- Department of Surgery, Obihiro Kosei General Hospital, 1 West 14 South 10, Obihiro, 080-0024, Hokkaido, Japan
| | - Osamu Sato
- Department of Surgery, Obihiro Kosei General Hospital, 1 West 14 South 10, Obihiro, 080-0024, Hokkaido, Japan
| | - Tomoko Mizota
- Department of Surgery, Obihiro Kosei General Hospital, 1 West 14 South 10, Obihiro, 080-0024, Hokkaido, Japan
| | - Masaomi Ichinokawa
- Department of Surgery, Obihiro Kosei General Hospital, 1 West 14 South 10, Obihiro, 080-0024, Hokkaido, Japan
| | - Katsuhiko Murakawa
- Department of Surgery, Obihiro Kosei General Hospital, 1 West 14 South 10, Obihiro, 080-0024, Hokkaido, Japan
| | - Yuma Aoki
- Department of Surgery, Asahikawa Red Cross Hospital, 1-1 Akebono 1-jo 1-chome, Asahikawa, 070-8530, Hokkaido, Japan
| | - Keita Ishido
- Department of Surgery, Asahikawa Red Cross Hospital, 1-1 Akebono 1-jo 1-chome, Asahikawa, 070-8530, Hokkaido, Japan
| | - Koichi Ono
- Department of Surgery, Obihiro Kosei General Hospital, 1 West 14 South 10, Obihiro, 080-0024, Hokkaido, Japan
| | - Satoshi Hirano
- Department of Gastrointestinal Surgery II, Hokkaido University Faculty of Medicine, Kita 15-jo Nishi 7-chome, Kita-ku, Asahikawa, 070-8530, Hokkaido, Japan
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Fukunaga A, Ikushima T, Aoki Y, Kuwabara S, Kato T, Hirano S. Esophageal perforation due to soft coagulation heat injury after right lower lobectomy: A case report. Int J Surg Case Rep 2024; 115:109247. [PMID: 38219514 PMCID: PMC10826808 DOI: 10.1016/j.ijscr.2024.109247] [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: 12/03/2023] [Revised: 01/05/2024] [Accepted: 01/06/2024] [Indexed: 01/16/2024] Open
Abstract
INTRODUCTION Soft coagulation is a hemostatic system of electrosurgical units that automatically regulates its output to avoid carbonization or incision. This system is widely used in invasive procedures, including thoracic surgery. Few reports exist on the harmful effects of these devices. Herein, we encountered a case of an esophagopleural fistula caused by soft coagulation. PRESENTATION OF CASE A 74-year-old man with a history of bladder cancer was diagnosed with a tumor in the right lower lung lobe 2.5 cm in diameter. A thoracoscopic right lower lobectomy with lymph node dissection was performed. During surgery, hemostasis using soft coagulation was performed on the right wall of the lower esophagus. Eight days after surgery, thoracoscopic empyema curettage and drainage were performed. Three days after the second surgery, an esophageal fistula was identified. Suturing for the esophageal fistula and omentoplasty were performed. Suture failure occurred and an esophagobronchial fistula developed after the third surgery, which was reduced by drainage, antibiotics, and enteral nutrition. The fistula was finally addressed by fibrin glue filling in its cavity. DISCUSSION Soft coagulation helps manage hemostasis and contributes to safe surgery. However, it may cause severe complications owing to the unpredictable spread of heat denaturation. It is suspected that delayed esophageal perforation was caused by an unnoticed heat injury to the deeper layer of the esophageal wall. CONCLUSION There have been no reports of esophagus injury caused by soft coagulation exept for our experience. Although soft coagulation is a useful device owing to its excellent hemostatic capacity, the spread of heat denaturation may cause unpredictable tissue damage. Extra caution should be observed when using this device for hemostasis.
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Affiliation(s)
- Akira Fukunaga
- Department of Thoracic Surgery, Japanese Red Cross Asahikawa Hospital, Japan.
| | - Takuya Ikushima
- Department of Thoracic Surgery, Japanese Red Cross Asahikawa Hospital, Japan
| | - Yuma Aoki
- Department of Surgery, Japanese Red Cross Asahikawa Hospital 1-1, Akebono1-1, Asahikawa, Hokkaido 070-8530, Japan
| | - Shota Kuwabara
- Department of Surgery, Japanese Red Cross Asahikawa Hospital 1-1, Akebono1-1, Asahikawa, Hokkaido 070-8530, Japan
| | - Tatsuya Kato
- Department of Thoracic Surgery, Hokkaido University Hospital, 5-14 Kita-ku, Sapporo, Hokkaido 060-8648, Japan
| | - Satoshi Hirano
- Department of Gastroenterological Surgery II, Hokkaido University Faculty of Medicine, 7-15 Kita-ku, Sapporo, Hokkaido 060-8638, Japan.
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Aoki Y, Noji T, Tanaka K, Matsui A, Nakanishi Y, Asano T, Nakamura T, Tsuchikawa T, Hirano S. Validation study for prognostic scoring system for perihilar cholangiocarcinoma surgery using preoperative factors. Langenbecks Arch Surg 2023; 408:430. [PMID: 37938415 DOI: 10.1007/s00423-023-03145-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 10/06/2023] [Indexed: 11/09/2023]
Abstract
PURPOSE Recently, systemic inflammatory responses (SIR) have been shown to play a pivotal role in the development and progression of cancer. We previously reported that four factors, serum carcinoembryonic antigen (> 7 ng/dL), serum albumin (< 3.5 g/dL), C-reactive protein (> 0.5 mg/dL), and platelet-lymphocyte ratio (PLR; > 150), were independent prognostic factors after perihilar cholangiocarcinoma (PHCC) surgery. We also advocated a prognosis predictive preoperative prognostic score (PPS) using these four factors and showed that PPS could predict patients' prognosis on survival. This retrospective study sought to validate preoperatively available prognostic factors for survival after major hepatectomy as reported previously, including PPS for PHCC. METHODS We retrospectively validated our PPS score and reported SIR scoring systems using the data of 125 consecutive patients who underwent PHCC surgery from January 2010 to November 2020. RESULTS PPS was an independent preoperative prognostic factors for survival. The T and N categories were independent prognostic factors. Other SIR scores were not independent preoperative factors in the univariate analysis. Among SIR scores, only the PPS was found to be associated with OS and disease-free survival. The PPS was also associated with histopathological factors (T and N categories). CONCLUSION PPS could be useful in predicting long-term survival after PHCC and may be a more useful scoring system than other SIR systems.
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Affiliation(s)
- Yuma Aoki
- Department of Gastroenterological Surgery II, Faculty of Medicine, Hokkaido University, Kita-15, Nishi 7, Kita-Ku, Sapporo, 060-8638, Japan
| | - Takehiro Noji
- Department of Gastroenterological Surgery II, Faculty of Medicine, Hokkaido University, Kita-15, Nishi 7, Kita-Ku, Sapporo, 060-8638, Japan.
| | - Kimitaka Tanaka
- Department of Gastroenterological Surgery II, Faculty of Medicine, Hokkaido University, Kita-15, Nishi 7, Kita-Ku, Sapporo, 060-8638, Japan
| | - Aya Matsui
- Department of Gastroenterological Surgery II, Faculty of Medicine, Hokkaido University, Kita-15, Nishi 7, Kita-Ku, Sapporo, 060-8638, Japan
| | - Yoshitsugu Nakanishi
- Department of Gastroenterological Surgery II, Faculty of Medicine, Hokkaido University, Kita-15, Nishi 7, Kita-Ku, Sapporo, 060-8638, Japan
| | - Toshimichi Asano
- Department of Gastroenterological Surgery II, Faculty of Medicine, Hokkaido University, Kita-15, Nishi 7, Kita-Ku, Sapporo, 060-8638, Japan
| | - Toru Nakamura
- Department of Gastroenterological Surgery II, Faculty of Medicine, Hokkaido University, Kita-15, Nishi 7, Kita-Ku, Sapporo, 060-8638, Japan
| | - Takahiro Tsuchikawa
- Department of Gastroenterological Surgery II, Faculty of Medicine, Hokkaido University, Kita-15, Nishi 7, Kita-Ku, Sapporo, 060-8638, Japan
| | - Satoshi Hirano
- Department of Gastroenterological Surgery II, Faculty of Medicine, Hokkaido University, Kita-15, Nishi 7, Kita-Ku, Sapporo, 060-8638, Japan
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Aoki Y, Tome Y, Oshiro H, Mizuta K, Katsuki R, Nishida K, Hoffman R. 93P Reduced malignancy of super methotrexate-resistant osteosarcoma cells is linked to elevated expression of PI3K/AKT/mTOR and c-MYC. ESMO Open 2023. [DOI: 10.1016/j.esmoop.2023.101130] [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: 04/05/2023] Open
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Ohtaki Y, Uchiyama K, Kamiya H, Moriizumi E, Yamada M, Aoki Y, Watanabe T, Kiryu S, Suzuki S, Matsumoto Y, Ito Z, Ohkusa T, Koido S, Saruta M. Correction: The insoluble excretion of multi-matrix system mesalazine preparations in patients with ulcerative colitis. BMC Gastroenterol 2023; 23:30. [PMID: 36732723 PMCID: PMC9896661 DOI: 10.1186/s12876-022-02608-z] [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: 02/04/2023] Open
Affiliation(s)
- Yuichiro Ohtaki
- grid.470101.3Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University Kashiwa Hospital, 163-1 Kashiwa, Kashiwa-shi, Chiba 277-8567 Japan
| | - Kan Uchiyama
- grid.470101.3Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University Kashiwa Hospital, 163-1 Kashiwa, Kashiwa-shi, Chiba 277-8567 Japan
| | - Hirotaka Kamiya
- grid.470101.3Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University Kashiwa Hospital, 163-1 Kashiwa, Kashiwa-shi, Chiba 277-8567 Japan
| | - Eri Moriizumi
- grid.470101.3Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University Kashiwa Hospital, 163-1 Kashiwa, Kashiwa-shi, Chiba 277-8567 Japan
| | - Moe Yamada
- grid.470101.3Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University Kashiwa Hospital, 163-1 Kashiwa, Kashiwa-shi, Chiba 277-8567 Japan
| | - Yuma Aoki
- grid.470101.3Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University Kashiwa Hospital, 163-1 Kashiwa, Kashiwa-shi, Chiba 277-8567 Japan
| | - Toshimune Watanabe
- grid.470101.3Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University Kashiwa Hospital, 163-1 Kashiwa, Kashiwa-shi, Chiba 277-8567 Japan
| | - Sachie Kiryu
- grid.470101.3Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University Kashiwa Hospital, 163-1 Kashiwa, Kashiwa-shi, Chiba 277-8567 Japan
| | - Shizuka Suzuki
- grid.470101.3Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University Kashiwa Hospital, 163-1 Kashiwa, Kashiwa-shi, Chiba 277-8567 Japan
| | - Yoshihiro Matsumoto
- grid.470101.3Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University Kashiwa Hospital, 163-1 Kashiwa, Kashiwa-shi, Chiba 277-8567 Japan
| | - Zensho Ito
- grid.470101.3Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University Kashiwa Hospital, 163-1 Kashiwa, Kashiwa-shi, Chiba 277-8567 Japan
| | - Toshifumi Ohkusa
- grid.258269.20000 0004 1762 2738Department of Microbiota Research, Juntendo University Graduate School of Medicine, 2-1-1 Hongou, Bunkyo-ku, Tokyo 113-8421 Japan
| | - Shigeo Koido
- grid.470101.3Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University Kashiwa Hospital, 163-1 Kashiwa, Kashiwa-shi, Chiba 277-8567 Japan
| | - Masayuki Saruta
- grid.411898.d0000 0001 0661 2073Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, 3-19-18 Nishishinbashi, Minato-ku, Tokyo 105-0003 Japan
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Sheng Y, Mordret A, Brenguier F, Boué P, Vernon F, Takeda T, Aoki Y, Taira T, Ben‐Zion Y. Seeking Repeating Anthropogenic Seismic Sources: Implications for Seismic Velocity Monitoring at Fault Zones. J Geophys Res Solid Earth 2023; 128:e2022JB024725. [PMID: 37035576 PMCID: PMC10078280 DOI: 10.1029/2022jb024725] [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] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 12/02/2022] [Accepted: 12/19/2022] [Indexed: 06/19/2023]
Abstract
Seismic velocities in rocks are highly sensitive to changes in permanent deformation and fluid content. The temporal variation of seismic velocity during the preparation phase of earthquakes has been well documented in laboratories but rarely observed in nature. It has been recently found that some anthropogenic, high-frequency (>1 Hz) seismic sources are powerful enough to generate body waves that travel down to a few kilometers and can be used to monitor fault zones at seismogenic depth. Anthropogenic seismic sources typically have fixed spatial distribution and provide new perspectives for velocity monitoring. In this work, we propose a systematic workflow to seek such powerful seismic sources in a rapid and straightforward manner. We tackle the problem from a statistical point of view, considering that persistent, powerful seismic sources yield highly coherent correlation functions (CFs) between pairs of seismic sensors. The algorithm is tested in California and Japan. Multiple sites close to fault zones show high-frequency CFs stable for an extended period of time. These findings have great potential for monitoring fault zones, including the San Jacinto Fault and the Ridgecrest area in Southern California, Napa in Northern California, and faults in central Japan. However, extra steps, such as beamforming or polarization analysis, are required to determine the dominant seismic sources and study the source characteristics, which are crucial to interpreting the velocity monitoring results. Train tremors identified by the present approach have been successfully used for seismic velocity monitoring of the San Jacinto Fault in previous studies.
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Affiliation(s)
- Y. Sheng
- University Grenoble AlpesUniversity Savoie Mont BlancCNRSIRDUniversity Gustave EiffelGrenobleFrance
| | - A. Mordret
- University Grenoble AlpesUniversity Savoie Mont BlancCNRSIRDUniversity Gustave EiffelGrenobleFrance
| | - F. Brenguier
- University Grenoble AlpesUniversity Savoie Mont BlancCNRSIRDUniversity Gustave EiffelGrenobleFrance
| | - P. Boué
- University Grenoble AlpesUniversity Savoie Mont BlancCNRSIRDUniversity Gustave EiffelGrenobleFrance
| | - F. Vernon
- Institute of Geophysics and Planetary PhysicsUniversity of California San DiegoSan DiegoCAUSA
| | - T. Takeda
- National Research Institute for Earth Science and Disaster ResilienceTsukubaJapan
| | - Y. Aoki
- Earthquake Research InstituteUniversity of TokyoTokyoJapan
| | - T. Taira
- Berkeley Seismological LaboratoryUniversity of California BerkeleyBerkeleyCAUSA
| | - Y. Ben‐Zion
- Department of Earth Sciences and Southern California Earthquake CenterUniversity of Southern CaliforniaLos AngelesCAUSA
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Kitazono J, Aoki Y, Oizumi M. Bidirectionally connected cores in a mouse connectome: towards extracting the brain subnetworks essential for consciousness. Cereb Cortex 2022; 33:1383-1402. [PMID: 35860874 PMCID: PMC9930638 DOI: 10.1093/cercor/bhac143] [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: 10/06/2021] [Revised: 02/28/2022] [Accepted: 03/02/2022] [Indexed: 11/15/2022] Open
Abstract
Where in the brain consciousness resides remains unclear. It has been suggested that the subnetworks supporting consciousness should be bidirectionally (recurrently) connected because both feed-forward and feedback processing are necessary for conscious experience. Accordingly, evaluating which subnetworks are bidirectionally connected and the strength of these connections would likely aid the identification of regions essential to consciousness. Here, we propose a method for hierarchically decomposing a network into cores with different strengths of bidirectional connection, as a means of revealing the structure of the complex brain network. We applied the method to a whole-brain mouse connectome. We found that cores with strong bidirectional connections consisted of regions presumably essential to consciousness (e.g. the isocortical and thalamic regions, and claustrum) and did not include regions presumably irrelevant to consciousness (e.g. cerebellum). Contrarily, we could not find such correspondence between cores and consciousness when we applied other simple methods that ignored bidirectionality. These findings suggest that our method provides a novel insight into the relation between bidirectional brain network structures and consciousness.
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Affiliation(s)
- Jun Kitazono
- Corresponding authors: Graduate School of Arts and Sciences, The University of Tokyo, Meguro-ku, Tokyo, Japan. ,
| | - Yuma Aoki
- Graduate School of Information Science and Technology, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Masafumi Oizumi
- Corresponding authors: Graduate School of Arts and Sciences, The University of Tokyo, Meguro-ku, Tokyo, Japan. ,
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Aoki Y, Yokohama O. Straining to void is associated with dyspareunia in Japanese women. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.03.453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Kitagawa T, Ozaki N, Aoki Y. Effect of physical therapy on the flexibility of the infrapatellar fat pad: A single-blind randomised controlled trial. PLoS One 2022; 17:e0265333. [PMID: 35298522 PMCID: PMC8929552 DOI: 10.1371/journal.pone.0265333] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 02/11/2022] [Indexed: 11/19/2022] Open
Abstract
The infrapatellar fat pad plays a biomechanical role in the knee joint. After knee injury or surgery, its dynamics decrease because of an inflammatory response. Physical therapy might be one of the valuable treatments for the recovery of knee joint mobility. This study aimed to evaluate the immediate effect of physical therapy on the dynamics of the infrapatellar fat pad in healthy participants using ultrasonography. In this prospective, single-blind, randomised controlled trial, 64 healthy young participants were enrolled and randomly assigned to one of the following three interventions: manual therapy, hot pack treatment, and control. Ultrasound images of the infrapatellar fat pad were obtained before and after the intervention. The thickness change ratio of the infrapatellar fat pad was calculated to compare the changes between and within groups before and after the intervention. No significant inter-group differences were observed. The effect sizes were relatively small. Manual therapy or hot pack intervention might not have an immediate effect on infrapatellar fat pad flexibility in healthy participants. Thus, it is necessary to consider more intensive treatments to change the dynamics of the infrapatellar fat pad.
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Affiliation(s)
- Takashi Kitagawa
- Department of Physical Therapy, School of Health Sciences, Shinshu University, Matsumoto, Japan
- * E-mail:
| | - Natsumi Ozaki
- Department of Physical Therapy, School of Health Sciences, Shinshu University, Matsumoto, Japan
| | - Yuma Aoki
- Department of Physical Therapy, School of Health Sciences, Shinshu University, Matsumoto, Japan
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Okumura Y, Fukushima M, Aoki Y, Ito H, Yokoyama O. Which affects nocturnal frequency most: Urgency or sleep disorders? Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00917-4] [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: 11/04/2022]
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Kitagawa T, Aoki Y, Sugimoto H, Ozaki N. Randomised controlled trial for evaluation of an ultrasound-guided palpation intervention for palpation skill training. Sci Rep 2022; 12:1189. [PMID: 35075225 PMCID: PMC8786950 DOI: 10.1038/s41598-022-05290-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Accepted: 01/07/2022] [Indexed: 11/23/2022] Open
Abstract
Although there are increasing reports on the usefulness of sonopalpation with ultrasound imaging, many previous studies have reported interventions without a control group. This single-blind, parallel-group randomised controlled trial aimed to determine whether educational instruction with sonopalpation for physical therapy students has a more superior effect on skill improvement than traditional instruction without ultrasonography. Twenty-nine physical therapy students participated in the study and were randomised using block randomisation into an ultrasound imaging group (n = 15) and a control group (n = 14). Subsequently, they underwent three training sessions focusing on the shoulder joint. Participants underwent a scoring assessment of their palpation skills at pre-intervention, post-intervention, and follow-up 3 months after training. The raters were blinded to the subjects’ group. The Friedman and Mann–Whitney U tests were used for data analysis. The intervention group showed a significant increase in scores at post-intervention and the 3-month follow-up; the effect sizes were large (0.849 and 0.849, respectively). A comparison of the scores at different time points after the intervention at the 3-month follow-up revealed no significant difference between the groups. Education using ultrasound imaging may be non-inferior to education without it; nevertheless, further studies are needed to demonstrate superiority.
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Affiliation(s)
- Takashi Kitagawa
- Department of Physical Therapy, School of Health Sciences, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano, 390-8621, Japan.
| | - Yuma Aoki
- Department of Physical Therapy, School of Health Sciences, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano, 390-8621, Japan
| | - Hotaka Sugimoto
- Department of Physical Therapy, School of Health Sciences, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano, 390-8621, Japan
| | - Natsumi Ozaki
- Department of Physical Therapy, School of Health Sciences, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano, 390-8621, Japan
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Takeno H, Aoki Y, Kimura K. Effects of silica and clay nanoparticles on the mechanical properties of poly(vinyl alcohol) nanocomposite hydrogels. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127592] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Tagami T, Aoki Y, Kawamura S, Sodeoka M. 1,2-Bis-perfluoroalkylations of alkenes and alkynes with perfluorocarboxylic anhydrides via the formation of perfluoroalkylcopper intermediates. Org Biomol Chem 2021; 19:9148-9153. [PMID: 34523640 DOI: 10.1039/d1ob01529j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel, Cu-mediated protocol toward the 1,2-bis-perfluoroalkyaltion of alkenes/alkynes was developed. The method proceeded with perfluorocarboxylic anhydrides as inexpensive and readily available perfluoroalkyl sources. Diacyl peroxide was generated in situ from the perfluorocarboxylic anhydrides and H2O2. The key step in this reaction is the formation of a stable perfluoroalkylcopper intermediate that is achieved with the aid of a bipyridyl ligand. Subsequent reaction of the intermediate with perfluoroalkyl-containing alkyl or vinyl radicals affords the desired products.
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Affiliation(s)
- Takuma Tagami
- Catalysis and Integrated Research Group, RIKEN Center for Sustainable Resource Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
| | - Yuma Aoki
- Catalysis and Integrated Research Group, RIKEN Center for Sustainable Resource Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
| | - Shintaro Kawamura
- Catalysis and Integrated Research Group, RIKEN Center for Sustainable Resource Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan. .,Synthetic Organic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Mikiko Sodeoka
- Catalysis and Integrated Research Group, RIKEN Center for Sustainable Resource Science, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan. .,Synthetic Organic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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14
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Aoki Y, Hasegawa S, Miyabe S, Nagao T. Spontaneous regression of malignant lymphoma of the maxillary gingiva following biopsy. Int J Oral Maxillofac Surg 2021; 51:1145-1148. [PMID: 34561111 DOI: 10.1016/j.ijom.2021.09.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 04/16/2021] [Revised: 07/07/2021] [Accepted: 09/07/2021] [Indexed: 11/26/2022]
Abstract
A case of spontaneous regression of malignant lymphoma of the maxillary gingiva following a biopsy is reported. An 84-year-old man was referred to the hospital with chief complaints of swelling of the anterior maxillary gingiva. A non-tender swelling with an ulcer was observed. There was no abnormal bone resorption in the anterior maxillary region and no swelling of the cervical lymph nodes. A biopsy was performed, and the patient was diagnosed with diffuse large B-cell lymphoma. The lesion regressed spontaneously 3 weeks after the initial biopsy. Two years have passed since the spontaneous regression and no recurrence has been observed. If malignant lymphoma regresses on biopsy, observation is considered to be sufficient.
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Affiliation(s)
- Y Aoki
- Department of Maxillofacial Surgery, School of Dentistry, Aichi-Gakuin University, Aichi, Japan
| | - S Hasegawa
- Department of Maxillofacial Surgery, School of Dentistry, Aichi-Gakuin University, Aichi, Japan; Department of Oral and Maxillofacial Surgery, Toyota Wakatake Hospital, Aichi, Japan.
| | - S Miyabe
- Department of Maxillofacial Surgery, School of Dentistry, Aichi-Gakuin University, Aichi, Japan
| | - T Nagao
- Department of Maxillofacial Surgery, School of Dentistry, Aichi-Gakuin University, Aichi, Japan
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15
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Suzuki K, Futamura K, Hasegawa E, Aoki Y, Nakamura M, Matsunaga K, Yagami A. Adult-Onset Sheep's Milk Allergy in a Patient Without Cow's Milk Allergy. J Investig Allergol Clin Immunol 2021; 31:273-274. [PMID: 32856594 DOI: 10.18176/jiaci.0578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- K Suzuki
- Department of Allergology, Fujita Health University School of Medicine, Aichi, Japan
| | - K Futamura
- Department of Allergology, Fujita Health University School of Medicine, Aichi, Japan
| | - E Hasegawa
- Department of Integrative Medical Science for Allergic Disease, Fujita Health University School of Medicine, Aichi, Japan.,General Research and Development Institute, Hoyu Co., Ltd., Aichi, Japan
| | - Y Aoki
- Department of Integrative Medical Science for Allergic Disease, Fujita Health University School of Medicine, Aichi, Japan.,General Research and Development Institute, Hoyu Co., Ltd., Aichi, Japan
| | - M Nakamura
- Department of Integrative Medical Science for Allergic Disease, Fujita Health University School of Medicine, Aichi, Japan.,General Research and Development Institute, Hoyu Co., Ltd., Aichi, Japan
| | - K Matsunaga
- Department of Allergology, Fujita Health University School of Medicine, Aichi, Japan.,Department of Integrative Medical Science for Allergic Disease, Fujita Health University School of Medicine, Aichi, Japan
| | - A Yagami
- Department of Allergology, Fujita Health University School of Medicine, Aichi, Japan
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16
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Bolsunovskyi K, Forss M, Kilpeläinen T, Lee Y, Aoki Y, Gudjonsson S, Hervé F, Järvinen P, Malde S, Miyazawa K, Sairanen J, Sander L, Witte L, Guyatt G, Tikkinen K. Practice variation in the management of adult hydroceles: A multinational survey. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)01512-8] [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: 11/16/2022]
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17
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Isagawa S, Shiohira H, Hokama N, Nitta H, Yoshida T, Masamoto H, Aoki Y, Nakamura K. Measurement of zinc concentration in blood and breast milk of a Wilson's disease patient taking zinc acetate. Pharmazie 2021; 75:177-178. [PMID: 32393423 DOI: 10.1691/ph.2020.9765] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 09/29/2022]
Abstract
Case: A 27-year-old, gravida 2, para 0, Japanese female who was maintained on zinc acetate (75 mg/day) during pregnancy expressed her desire to breastfeed after birth. We investigated the possibility of breastfeeding while on treatment. Breast milk zinc concentrations were determined using an atomic absorption photometer. Breast milk zinc concentrations on the 4th (colostrum) and 32nd (post-colostrum) days post partum were 10.80 μg/mL and 3.28 μg/mL, respectively. These values are less than the reported range of breast milk zinc concentrations in Japanese women who are not under any medication. Conclusion: We measured blood and breast milk zinc concentrations of a patient with Wilson's disease who was taking zinc acetate (75 mg/day). Zinc values were within the range of breast milk concentrations of mothers who are not on zinc acetate.
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Affiliation(s)
- S Isagawa
- Department of Pharmacy, University of the Ryukyus Hospital, Okinawa, Japan
| | - H Shiohira
- Department of Pharmacy, University of the Ryukyus Hospital, Okinawa, Japan
| | - N Hokama
- Department of Pharmacy, University of the Ryukyus Hospital, Okinawa, Japan
| | - H Nitta
- Department of Obstetrics and Gynecology, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - T Yoshida
- Department of Pediatrics, Faculty of Medicine, University of the Ryukyus, Okinawa, Japan
| | - H Masamoto
- Department of Obstetrics and Gynecology, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - Y Aoki
- Department of Obstetrics and Gynecology, Graduate School of Medicine, University of the Ryukyus, Okinawa, Japan
| | - K Nakamura
- Department of Pharmacy, University of the Ryukyus Hospital, Okinawa, Japan;,
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18
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Imanishi A, Aoki Y, Kakehi M, Mori S, Takano T, Kubota Y, Kim HS, Shibata Y, Nishiwaki K. Genetic interactions among ADAMTS metalloproteases and basement membrane molecules in cell migration in Caenorhabditis elegans. PLoS One 2020; 15:e0240571. [PMID: 33264296 PMCID: PMC7710118 DOI: 10.1371/journal.pone.0240571] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 11/10/2020] [Indexed: 11/18/2022] Open
Abstract
During development of the Caenorhabditis elegans gonad, the gonadal leader cells, called distal tip cells (DTCs), migrate in a U-shaped pattern to form the U-shaped gonad arms. The ADAMTS (adisintegrin and metalloprotease with thrombospondin motifs) family metalloproteases MIG-17 and GON-1 are required for correct DTC migration. Mutations in mig-17 result in misshapen gonads due to the misdirected DTC migration, and mutations in gon-1 result in shortened and swollen gonads due to the premature termination of DTC migration. Although the phenotypes shown by mig-17 and gon-1 mutants are very different from one another, mutations that result in amino acid substitutions in the same basement membrane protein genes, emb-9/collagen IV α1, let-2/collagen IV α2 and fbl-1/fibulin-1, were identified as genetic suppressors of mig-17 and gon-1 mutants. To understand the roles shared by these two proteases, we examined the effects of the mig-17 suppressors on gon-1 and the effects of the gon-1 suppressors and enhancers on mig-17 gonadal defects. Some of the emb-9, let-2 and fbl-1 mutations suppressed both mig-17 and gon-1, whereas others acted only on mig-17 or gon-1. These results suggest that mig-17 and gon-1 have their specific functions as well as functions commonly shared between them for gonad formation. The levels of collagen IV accumulation in the DTC basement membrane were significantly higher in the gon-1 mutants as compared with wild type and were reduced to the wild-type levels when combined with suppressor mutations, but not with enhancer mutations, suggesting that the ability to reduce collagen IV levels is important for gon-1 suppression.
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Affiliation(s)
- Ayaka Imanishi
- Department of Bioscience, Kwansei Gakuin University, Sanda, Japan
| | - Yuma Aoki
- Department of Bioscience, Kwansei Gakuin University, Sanda, Japan
| | - Masaki Kakehi
- Department of Bioscience, Kwansei Gakuin University, Sanda, Japan
| | - Shunsuke Mori
- Department of Bioscience, Kwansei Gakuin University, Sanda, Japan
| | - Tomomi Takano
- Department of Bioscience, Kwansei Gakuin University, Sanda, Japan
| | - Yukihiko Kubota
- Department of Bioscience, Kwansei Gakuin University, Sanda, Japan
| | - Hon-Song Kim
- Department of Bioscience, Kwansei Gakuin University, Sanda, Japan
| | - Yukimasa Shibata
- Department of Bioscience, Kwansei Gakuin University, Sanda, Japan
| | - Kiyoji Nishiwaki
- Department of Bioscience, Kwansei Gakuin University, Sanda, Japan
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19
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Sepúlveda M, Castaño J, Echeverría F, Aoki Y, Kowalski D, Habazaki H. Formation of quasi-spherical Au48-198 clusters in anodic titania nanotubes grown on Ti-Au alloys. Electrochem commun 2020. [DOI: 10.1016/j.elecom.2020.106847] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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20
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Maruyama R, Lim K, Nguyen Q, Tsoumpra M, Takeda S, Aoki Y, Yokota T. DMD – ANIMAL MODELS & PRECLINICAL TREATMENT. Neuromuscul Disord 2020. [DOI: 10.1016/j.nmd.2020.08.215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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21
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Hayamizu K, Aoki Y, Izumo N, Nakano M. Estimation of inter-individual variability of protein requirement by indicator amino acid oxidation method. J Clin Biochem Nutr 2020; 68:32-36. [PMID: 33536710 PMCID: PMC7844655 DOI: 10.3164/jcbn.20-79] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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: 05/15/2020] [Accepted: 05/29/2020] [Indexed: 11/22/2022] Open
Abstract
The indicator amino acid oxidation (IAAO) method is a recently developed method to determine the protein requirement and is particularly useful for analyzing human subjects because of its minimal invasiveness. IAAO study is performed using two-phase regression analysis, with the break-point between these phases being the estimated average requirement. However, this method requires that the break-point lie within a certain range in advance, which is in practice difficult. Recently, the change-point regression model (CPRM) has been proposed to be more effective for two-phase regression analysis. There is also a need to re-evaluate the value corresponding to the recommended dietary allowance. Calculation of the recommended dietary allowance requires data on the average requirement and the inter-individual variability of this requirement. However, no inter-individual variability values have been reported in the IAAO method. The aim of this study was thus to estimate the inter-individual variation in protein requirement using CPRM. From seven IAAO studies, the inter-individual variability was estimated as a coefficient of variation of about 20%. The coefficient of variation of the protein requirement determined by IAAO study was wider than the ordinary coefficient of variation obtained from the nitrogen balance test.
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Affiliation(s)
- Kohsuke Hayamizu
- Department of Pharmacy, Yokohama University of Pharmacy, Matano-cho 601, Totsuka-ku, Yokohama, Kanagawa 245-0066, Japan
| | - Yuma Aoki
- Department of Pharmacy, Yokohama University of Pharmacy, Matano-cho 601, Totsuka-ku, Yokohama, Kanagawa 245-0066, Japan
| | - Nobuo Izumo
- Department of Pharmacy, Yokohama University of Pharmacy, Matano-cho 601, Totsuka-ku, Yokohama, Kanagawa 245-0066, Japan
| | - Makoto Nakano
- Department of Pharmacy, Yokohama University of Pharmacy, Matano-cho 601, Totsuka-ku, Yokohama, Kanagawa 245-0066, Japan
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22
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Seki M, Zha X, Inamura S, Aoki Y, Ito H, Yokoyama O. Whether psychological stress acts on promoting or suppressing bladder function is related to the rat’s comorbidity; WKR vs SHR. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33033-0] [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: 11/30/2022] Open
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23
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Aoki Y, Matsumoto C, Fukushima M, Ito H, Yokoyama O. Nocturia with or without urgency: Which is more associated with metabolic syndrome? EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)32742-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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24
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Saeki C, Takano K, Oikawa T, Aoki Y, Kanai T, Takakura K, Nakano M, Torisu Y, Sasaki N, Abo M, Matsuura T, Tsubota A, Saruta M. Comparative assessment of sarcopenia using the JSH, AWGS, and EWGSOP2 criteria and the relationship between sarcopenia, osteoporosis, and osteosarcopenia in patients with liver cirrhosis. BMC Musculoskelet Disord 2019; 20:615. [PMID: 31878909 PMCID: PMC6933666 DOI: 10.1186/s12891-019-2983-4] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 12/02/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Sarcopenia and osteoporosis reduce life quality and worsen prognosis in patients with liver cirrhosis (LC). When these two complications coexist, a diagnosis of osteosarcopenia is made. We aimed to investigate the actual situations of sarcopenia, osteoporosis, osteosarcopenia, and vertebral fracture, and to clarify the relationship among these events in patients with LC. METHODS We describe a cross-sectional study of 142 patients with LC. Sarcopenia was defined according to the Japan Society of Hepatology (JSH) criteria, Asian Working Group for Sarcopenia (AWGS) criteria, and European Working Group on Sarcopenia in Older People (EWGSOP2) criteria. The skeletal muscle mass index (SMI) and handgrip strength were assessed using bioelectrical impedance analysis and a digital grip strength dynamometer, respectively. Bone mineral density (BMD) was measured using dual energy X-ray absorptiometry, and vertebral fracture was evaluated using spinal lateral X-rays. The severity of LC was assessed using the Child-Pugh classification. RESULTS Among the 142 patients, the prevalence of sarcopenia was 33.8% (48/142) according to the JSH and AWGS criteria and 28.2% (40/142) according to the EWGSOP2 criteria. The number of patients with osteoporosis, osteosarcopenia, and vertebral fracture was 49 (34.5%), 31 (21.8%), and 41 (28.9%), respectively. Multivariate analysis revealed a close association between sarcopenia and osteoporosis. Osteoporosis was independently associated with sarcopenia [odds ratio (OR) = 3.923, P = 0.010]. Conversely, sarcopenia was independently associated with osteoporosis (OR = 5.722, P < 0.001). Vertebral fracture occurred most frequently in patients with osteosarcopenia (19/31; 61.3%) and least frequently in those without both sarcopenia and osteoporosis (12/76; 15.8%). The SMI and handgrip strength values were significantly correlated with the BMD of the lumbar spine (r = 0.55 and 0.51, respectively; P < 0.001 for both), femoral neck, (r = 0.67 and 0.62, respectively; P < 0.001 for both), and total hip (r = 0.67 and 0.61, respectively; P < 0.001 for both). CONCLUSIONS Sarcopenia, osteoporosis, osteosarcopenia, and vertebral fracture were highly prevalent and closely associated with one another in patients with LC. Specifically, patients with osteosarcopenia had the highest risk of vertebral fractures. Early diagnosis of these complications is essential for treatment intervention.
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Affiliation(s)
- Chisato Saeki
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8, Nishi-shinbashi, Minato-ku, Tokyo, 105-8461, Japan. .,Division of Gastroenterology, Department of Internal Medicine, Fuji City General Hospital, Shizuoka, Japan.
| | - Keiko Takano
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8, Nishi-shinbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Tsunekazu Oikawa
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8, Nishi-shinbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Yuma Aoki
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8, Nishi-shinbashi, Minato-ku, Tokyo, 105-8461, Japan.,Division of Gastroenterology, Department of Internal Medicine, Fuji City General Hospital, Shizuoka, Japan
| | - Tomoya Kanai
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8, Nishi-shinbashi, Minato-ku, Tokyo, 105-8461, Japan.,Division of Gastroenterology, Department of Internal Medicine, Fuji City General Hospital, Shizuoka, Japan
| | - Kazuki Takakura
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8, Nishi-shinbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Masanori Nakano
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8, Nishi-shinbashi, Minato-ku, Tokyo, 105-8461, Japan.,Division of Gastroenterology, Department of Internal Medicine, Fuji City General Hospital, Shizuoka, Japan
| | - Yuichi Torisu
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8, Nishi-shinbashi, Minato-ku, Tokyo, 105-8461, Japan.,Division of Gastroenterology, Department of Internal Medicine, Fuji City General Hospital, Shizuoka, Japan
| | - Nobuyuki Sasaki
- Department of Rehabilitation Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Masahiro Abo
- Department of Rehabilitation Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Tomokazu Matsuura
- Department of Laboratory Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Akihito Tsubota
- Core Research Facilities, Research Center for Medical Science, The Jikei University School of Medicine, Tokyo, Japan.
| | - Masayuki Saruta
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, 3-25-8, Nishi-shinbashi, Minato-ku, Tokyo, 105-8461, Japan
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25
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Aoki Y, Toyoda T, Kawasaki H, Takaya H, Sharma AK, Morokuma K, Nakamura M. Iron‐Catalyzed Chemoselective C−N Coupling Reaction: A Protecting‐Group‐Free Amination of Aryl Halides Bearing Amino or Hydroxy Groups. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900641] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Yuma Aoki
- International Research Center for Elements Science Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
- Department of Energy and Hydrocarbon Chemistry Graduate School of Engineering Kyoto University Kyoto 615-8510 Japan
- Riken Center for Sustainable Resource Science 2-1 Hirosawa, Wako Saitama 351-0198 Japan
| | - Takahiro Toyoda
- International Research Center for Elements Science Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
- Department of Energy and Hydrocarbon Chemistry Graduate School of Engineering Kyoto University Kyoto 615-8510 Japan
| | - Hiroto Kawasaki
- International Research Center for Elements Science Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
- Department of Energy and Hydrocarbon Chemistry Graduate School of Engineering Kyoto University Kyoto 615-8510 Japan
| | - Hikaru Takaya
- International Research Center for Elements Science Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
- Department of Energy and Hydrocarbon Chemistry Graduate School of Engineering Kyoto University Kyoto 615-8510 Japan
| | - Akhilesh K. Sharma
- International Research Center for Elements Science Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
| | - Keiji Morokuma
- Fukui Institute for Fundamental Chemistry Kyoto University Kyoto 606-8103 Japan
| | - Masaharu Nakamura
- International Research Center for Elements Science Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
- Department of Energy and Hydrocarbon Chemistry Graduate School of Engineering Kyoto University Kyoto 615-8510 Japan
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26
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Aoki Y. Comparison of the Technical Feasibility and Safety of Three Contained Morcellation Techniques: A Pilot Study in an Animal Model. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.556] [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: 11/28/2022]
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27
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Takaoka Y, Kondo Y, Matsunaga K, Aoki Y, Hasegawa E, Tokuda R, Fujisawa T, Morikawa A, Doi S. Allergy and Anaphylactic Reaction to Loquat (Eriobotrya japonica) Are Induced by a Bet v 1 Homolog. J Investig Allergol Clin Immunol 2019; 29:382-383. [DOI: 10.18176/jiaci.0406] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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28
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Fujita S, Kusano S, Sugiura Y, Sakuraba K, Kubota A, Sakuma K, Suzuki Y, Hayamizu K, Aoki Y, Sugita M. A 100-m Sprint Time Is Associated With Deep Trunk Muscle Thickness in Collegiate Male Sprinters. Front Sports Act Living 2019; 1:32. [PMID: 33344956 PMCID: PMC7739772 DOI: 10.3389/fspor.2019.00032] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 07/15/2019] [Accepted: 09/09/2019] [Indexed: 11/13/2022] Open
Abstract
Introduction: One reason athletes train their trunk muscles is that the body's trunk stability has been shown to prevent injury. However, the relationship between body trunk muscle thickness, particularly that of deep muscles, and athletic performance remains to be clarified. Purpose: We aimed to explore the relationship between 100-m sprint performance and the sizes of the trunk stabilizing muscles, the psoas major muscle (PM), transversus abdominis (TA), and multifidus muscle (MM), in collegiate sprinters. Methods: Fourteen male sprinters belonging to a university athletics club participated in this study. The thicknesses of the TA and MM were measured using an ultrasonic diagnostic apparatus (ProSound C3; Aloka, Tokyo, Japan). The cross-sectional area of the PM was assessed by a magnetic resonance imaging apparatus (Vantage Elan; Toshiba Medical Systems, Tokyo, Japan). The relationship between these anthropometric parameters and the 100-m sprint time was analyzed by Spearman's correlation coefficient, multi- regression analysis, and the change-point regression model. Results: The sizes (mean ± SD) of the muscles were: PM, 43.074 ± 7.35 cm2; TA, 4.36 ± 0.72 mm; and MM, 3.99 ± 0.48 cm. The mean 100-m sprint time was 11.00 ± 0.48 s. Spearman's correlation analysis revealed that the 100-m sprint time had a significant moderate negative correlation with TA (ρ = −0.691, p < 0.01) and a low negative but not significant correlation with MM (ρ = −0.327, p = 0.28), whereas PM did not show a significant or in-negligible correlation. The change-point regression model found the change-points in the 100-m sprint time and the thickness of the TA and MM at 4.70 mm (95% CI: 4.00–5.43 mm) and 3.84 cm (95% CI: 3.28–4.31 cm), respectively. The sprint time decreased with an increase in the thickness of the muscles up to the change-points, whereas it did not change even if the muscles became thicker than the change-points. The change-points were consistently observed when the thickness of the muscles was normalized by body mass. Conclusion: Sprint performance for 100-m was found to be associated with TA and MM thickness in a biphasic manner. As muscle thickness increased, the sprint time decreased, followed by a plateau phase.
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Affiliation(s)
- Shimpei Fujita
- College of Health and Welfare, J. F. Oberlin University, Tokyo, Japan
| | | | - Yusaku Sugiura
- Laboratory of Sports Science, Meikai University, Chiba, Japan
| | - Keishoku Sakuraba
- Graduate School of Health and Sports Science, Juntendo University, Chiba, Japan
| | - Atsushi Kubota
- Graduate School of Health and Sports Science, Juntendo University, Chiba, Japan
| | - Kazuhiko Sakuma
- Korea National Track and Field Federation, Chungcheongbuk-do, South Korea
| | - Yoshio Suzuki
- Graduate School of Health and Sports Science, Juntendo University, Chiba, Japan
| | - Kohsuke Hayamizu
- Laboratory of Food Chemistry, Yokohama University of Pharmacy, Kanagawa, Japan
| | - Yuma Aoki
- Laboratory of Food Chemistry, Yokohama University of Pharmacy, Kanagawa, Japan
| | - Masaaki Sugita
- Department of Physical Education, Faculty of Sport Science, Nippon Sport Science University, Tokyo, Japan
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29
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Tani N, Ikeda T, Aoki Y, Shida A, Oritani S, Ishikawa T. Evaluation of screening for drug use using postmortem prolactin levels in serum and cerebrospinal fluid. Hum Exp Toxicol 2019; 38:1244-1253. [PMID: 31319705 DOI: 10.1177/0960327119864139] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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
Prolactin (PRL) levels can usually be controlled by PRL-inhibiting psychiatric drugs that include anti-dopamine agents. However, the use of dopamine (DA) antagonists may lead to hyperprolactinemia under certain clinical conditions. The aim of this study was to investigate postmortem PRL levels as potential markers of drug abuse, especially that of DA antagonists, in autopsy cases. We examined 121 autopsy cases, excluding cases involving acute hypoxia/ischemia, such as asphyxia, because PRL concentrations are reportedly increased under acute hypoxic conditions. Detected drugs were classified as either DA antagonists, stimulants, psychotropic drugs other than DA antagonists, or other non-psychotropic drugs, and many cases had no detected drugs. Samples comprised blood collected from the right heart chamber and cerebrospinal fluid (CSF). PRL protein level was measured by chemiluminescent immunoassay, and PRL gene expression in the anterior pituitary of autopsy cases was analyzed by reverse transcription-polymerase chain reaction. The PRL-positive cell ratio in the anterior pituitary gland was also measured by immunohistochemical analysis. The results indicated that PRL levels in the serum and CSF were higher in DA antagonist cases than in other cases. PRL levels in the serum and CSF also correlated with the PRL gene expression in cases with abuse of DA antagonists. However, no significant difference in the PRL-positive cell ratio in the anterior pituitary gland was evident between any of the classes of drug-detected and drug-undetected cases. These results suggest that postmortem measurements of PRL transcription levels may be useful for diagnosing cases of DA antagonist use.
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Affiliation(s)
- N Tani
- Department of Legal Medicine, Osaka City University Medical School, Osaka, Japan.,Forensic Autopsy Section, Medico-legal Consultation and Postmortem Investigation Support Center, c/o Department of Legal Medicine, Osaka City University Medical School, Osaka, Japan
| | - T Ikeda
- Department of Legal Medicine, Osaka City University Medical School, Osaka, Japan.,Forensic Autopsy Section, Medico-legal Consultation and Postmortem Investigation Support Center, c/o Department of Legal Medicine, Osaka City University Medical School, Osaka, Japan
| | - Y Aoki
- Department of Legal Medicine, Osaka City University Medical School, Osaka, Japan
| | - A Shida
- Department of Legal Medicine, Osaka City University Medical School, Osaka, Japan
| | - S Oritani
- Department of Legal Medicine, Osaka City University Medical School, Osaka, Japan
| | - T Ishikawa
- Department of Legal Medicine, Osaka City University Medical School, Osaka, Japan.,Forensic Autopsy Section, Medico-legal Consultation and Postmortem Investigation Support Center, c/o Department of Legal Medicine, Osaka City University Medical School, Osaka, Japan
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Murakami R, Sekine D, Aoki Y, Kawamura S, Sodeoka M. Control of site selectivity in trifluoromethylation of alkenes bearing a pendant indolyl group: Synthesis of CF3-containing tetrahydrocarbazoles. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.01.048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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31
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Aoki Y, O'Brien HM, Kawasaki H, Takaya H, Nakamura M. Ligand-Free Iron-Catalyzed C-F Amination of Diarylamines: A One-Pot Regioselective Synthesis of Diaryl Dihydrophenazines. Org Lett 2019; 21:461-464. [PMID: 30628796 DOI: 10.1021/acs.orglett.8b03702] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A one-pot synthesis of various 5,10-diaryl-5,10-dihydrophenazines (DADHPs) from diarylamines has been achieved by using an iron-catalyzed C-F amination. Homodimerization of magnesium diarylamides, followed by defluorinative intramolecular cyclization (double ortho C-F amination) in the presence of catalytic FeCl2 and stoichiometric 1,2-dibromoethane, affords the corresponding DADHPs with complete regiocontrol. The unique high reactivity of fluorine over other halogens indicates that amination proceeds via an SNAr mechanism facilitated by iron.
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Affiliation(s)
- Yuma Aoki
- International Research Center for Elements Science, Institute for Chemical Research , Kyoto University , Uji, Kyoto 611-0011 , Japan.,Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering , Kyoto University , Nishikyo-ku, Kyoto 615-8510 , Japan
| | - Harry M O'Brien
- School of Chemistry , University of Bristol , Cantock's Close , Bristol BS8 1TS , U.K
| | - Hiroto Kawasaki
- International Research Center for Elements Science, Institute for Chemical Research , Kyoto University , Uji, Kyoto 611-0011 , Japan.,Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering , Kyoto University , Nishikyo-ku, Kyoto 615-8510 , Japan
| | - Hikaru Takaya
- International Research Center for Elements Science, Institute for Chemical Research , Kyoto University , Uji, Kyoto 611-0011 , Japan.,Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering , Kyoto University , Nishikyo-ku, Kyoto 615-8510 , Japan
| | - Masaharu Nakamura
- International Research Center for Elements Science, Institute for Chemical Research , Kyoto University , Uji, Kyoto 611-0011 , Japan.,Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering , Kyoto University , Nishikyo-ku, Kyoto 615-8510 , Japan
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32
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Domen H, Hida Y, Sato M, Takahashi H, Ishikawa T, Shionoya Y, Hashimoto M, Nishiyama K, Aoki Y, Inoko K, Furukawa S, Ichinokawa K, Yamada H. Resected thymic large cell neuroendocrine carcinoma: report of a case. Surg Case Rep 2018; 4:133. [PMID: 30446840 PMCID: PMC6240022 DOI: 10.1186/s40792-018-0540-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 07/18/2018] [Accepted: 11/06/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Thymic large cell neuroendocrine carcinoma (LCNEC) is extremely rare. The detailed clinical features of thymic LNCECs remain unknown. CASE PRESENTATION A 90-year-old man with a history of diabetes mellitus, chronic renal failure, and an abdominal aortic aneurysm underwent computed tomography for follow-up, which showed an anterior mediastinal tumor, measuring 31 mm × 28 mm in diameter. Magnetic resonance imaging showed an iso-intensity mass on T1-weighted images and high intensity on T2-weighted images. 18F-Fluorodeoxyglucose-positron emission tomography showed marked uptake in the mass, which was diagnosed as invasive thymoma or thymic carcinoma. Video-assisted thoracic surgery through the left thoracic cavity was converted to median sternotomy due to severe adhesions between the left lung and the chest wall. Partial thymectomy and combined partial resection of left upper lobectomy and the first and the second costal cartilages were performed. The pathologic diagnosis was thymic LCNEC, Masaoka stage III. The patient developed pleural dissemination and left lung metastases in 5 months and died 12 months after surgery. CONCLUSIONS Thymic LCNEC has high malignant potential. More cases need to be studied.
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Affiliation(s)
- Hiromitsu Domen
- Department of Surgery, Nippon Telegraph and Telephone East Corporation Sapporo Medical Center, South 1, West 15, Chuo-ku, Sapporo, Hokkaido, 060-0061, Japan.
| | - Yasuhiro Hida
- Department of Cardiovascular and Thoracic Surgery, Faculty of Medicine, Hokkaido University, North 14, West 5, Kita-ku, Sapporo, Hokkaido, 060-8648, Japan
| | - Masaaki Sato
- Department of Pathology, Nippon Telegraph and Telephone East Corporation Sapporo Medical Center, South 1, West 15, Chuo-ku, Sapporo, Hokkaido, 060-0061, Japan
| | - Haruka Takahashi
- Department of Respiratory Medicine, Nippon Telegraph and Telephone East Corporation Sapporo Medical Center, South 1, West 15, Chuo-ku, Sapporo, Hokkaido, 060-0061, Japan
| | - Tatsuru Ishikawa
- Department of Respiratory Medicine, Nippon Telegraph and Telephone East Corporation Sapporo Medical Center, South 1, West 15, Chuo-ku, Sapporo, Hokkaido, 060-0061, Japan
| | - Yosuke Shionoya
- Department of Respiratory Medicine, Nippon Telegraph and Telephone East Corporation Sapporo Medical Center, South 1, West 15, Chuo-ku, Sapporo, Hokkaido, 060-0061, Japan
| | - Midori Hashimoto
- Department of Respiratory Medicine, Nippon Telegraph and Telephone East Corporation Sapporo Medical Center, South 1, West 15, Chuo-ku, Sapporo, Hokkaido, 060-0061, Japan
| | - Kaoru Nishiyama
- Department of Respiratory Medicine, Nippon Telegraph and Telephone East Corporation Sapporo Medical Center, South 1, West 15, Chuo-ku, Sapporo, Hokkaido, 060-0061, Japan
| | - Yuma Aoki
- Department of Surgery, Nippon Telegraph and Telephone East Corporation Sapporo Medical Center, South 1, West 15, Chuo-ku, Sapporo, Hokkaido, 060-0061, Japan
| | - Kazuho Inoko
- Department of Surgery, Nippon Telegraph and Telephone East Corporation Sapporo Medical Center, South 1, West 15, Chuo-ku, Sapporo, Hokkaido, 060-0061, Japan
| | - Syotaro Furukawa
- Department of Surgery, Nippon Telegraph and Telephone East Corporation Sapporo Medical Center, South 1, West 15, Chuo-ku, Sapporo, Hokkaido, 060-0061, Japan
| | - Kazuomi Ichinokawa
- Department of Surgery, Nippon Telegraph and Telephone East Corporation Sapporo Medical Center, South 1, West 15, Chuo-ku, Sapporo, Hokkaido, 060-0061, Japan
| | - Hidehisa Yamada
- Department of Surgery, Nippon Telegraph and Telephone East Corporation Sapporo Medical Center, South 1, West 15, Chuo-ku, Sapporo, Hokkaido, 060-0061, Japan
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33
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Shimoyama Y, Wada T, Aoki Y. Physiological responses to high-intensity exercises using tethered swimming and Wingate cycling in competitive swimmers. J Sci Med Sport 2018. [DOI: 10.1016/j.jsams.2018.09.193] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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34
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Kawamura S, Henderson CJ, Aoki Y, Sekine D, Kobayashi S, Sodeoka M. Reactivity and properties of bis(chlorodifluoroacetyl) peroxide generated in situ from chlorodifluoroacetic anhydride for chlorodifluoromethylation reactions. Chem Commun (Camb) 2018; 54:11276-11279. [PMID: 30238112 DOI: 10.1039/c8cc05905e] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
We developed a practical chlorodifluoromethylation reaction mediated by diacyl peroxide generated in situ from chlorodifluoroacetic anhydride. Allylic and amino-chlorodifluoromethylations of alkenes proceeded well with the combination of this reagent, Cu(ii) catalyst and a pyridine additive. Carbo- and aromatic chlorodifluoromethylations proceeded under metal-free conditions.
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Affiliation(s)
- Shintaro Kawamura
- RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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35
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Levenson-Falk EM, Schemm ER, Aoki Y, Maple MB, Kapitulnik A. Polar Kerr Effect from Time-Reversal Symmetry Breaking in the Heavy-Fermion Superconductor PrOs_{4}Sb_{12}. Phys Rev Lett 2018; 120:187004. [PMID: 29775372 DOI: 10.1103/physrevlett.120.187004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Indexed: 06/08/2023]
Abstract
We present polar Kerr effect measurements of the filled skutterudite superconductor PrOs_{4}Sb_{12}. Simultaneous ac susceptibility measurements allow us to observe the superconducting transition under the influence of heating from the optical beam. A nonzero Kerr angle θ_{K} develops below the superconducting transition, saturating at ∼300 nrad at low temperatures. This result is repeated across several measurements of multiple samples. By extrapolating the measured θ_{K}(T) to zero optical power, we are able to show that the Kerr angle onset temperature in one set of measurements is consistent with the transition to the B phase at T_{C2}. We discuss the possible explanations for this result and its impact on the understanding of multiphase and inhomogeneous superconductivity in PrOs_{4}Sb_{12}.
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Affiliation(s)
- E M Levenson-Falk
- Department of Applied Physics, Stanford University, Stanford, California 94305, USA
- Geballe Laboratory for Advanced Materials, Stanford University, Stanford, California 94305, USA
- Department of Physics and Astronomy, University of Southern California, Los Angeles, California 90089, USA
| | - E R Schemm
- Geballe Laboratory for Advanced Materials, Stanford University, Stanford, California 94305, USA
| | - Y Aoki
- Department of Physics, Tokyo Metropolitan University, Tokyo 192-0397, Japan
| | - M B Maple
- Department of Physics and Center for Advanced Nanoscience, University of California San Diego, La Jolla, California 92093, USA
| | - A Kapitulnik
- Department of Applied Physics, Stanford University, Stanford, California 94305, USA
- Department of Physics, Stanford University, Stanford, California 94305, USA
- Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
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36
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Sugimoto T, Paris E, Wakita T, Terashima K, Yokoya T, Barinov A, Kajitani J, Higashinaka R, Matsuda TD, Aoki Y, Mizokawa T, Saini NL. Metallic phase in stoichiometric CeOBiS 2 revealed by space-resolved ARPES. Sci Rep 2018; 8:2011. [PMID: 29386537 PMCID: PMC5792495 DOI: 10.1038/s41598-018-20351-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Accepted: 01/16/2018] [Indexed: 11/29/2022] Open
Abstract
Recently CeOBiS2 system without any fluorine doping is found to show superconductivity posing question on its origin. Using space resolved ARPES we have found a metallic phase embedded in the morphological defects and at the sample edges of stoichiometric CeOBiS2. While bulk of the sample is semiconducting, the embedded metallic phase is characterized by the usual electron pocket at X point, similar to the Fermi surface of doped BiS2-based superconductors. Typical size of the observed metallic domain is larger than the superconducting correlation length of the system suggesting that the observed superconductivity in undoped CeOBiS2 might be due to this embedded metallic phase at the defects. The results also suggest a possible way to develop new systems by manipulation of the defects in these chalcogenides with structural instability.
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Affiliation(s)
- T Sugimoto
- Dipartimento di Fisica, Universitá di Roma "La Sapienza" - Piazzale Aldo Moro 2, 00185, Roma, Italy.,Department of Complexity Science and Engineering, University of Tokyo, 5-1-5 Kashiwanoha, Chiba, 277-8561, Japan.,Institute for Solid State Physics, University of Tokyo, 5-1-5 Kashiwanoha, Chiba, 277-8561, Japan
| | - E Paris
- Dipartimento di Fisica, Universitá di Roma "La Sapienza" - Piazzale Aldo Moro 2, 00185, Roma, Italy
| | - T Wakita
- Research Institute for Interdisciplinary Science (RIIS), Okayama University, Okayama, 700-8530, Japan
| | - K Terashima
- Research Institute for Interdisciplinary Science (RIIS), Okayama University, Okayama, 700-8530, Japan
| | - T Yokoya
- Research Institute for Interdisciplinary Science (RIIS), Okayama University, Okayama, 700-8530, Japan
| | - A Barinov
- Elettra, Sincrotrone Trieste, Strada Statale 14, Km 163.5, Basovizza, 34149, Trieste, Italy
| | - J Kajitani
- Department of Physics, Tokyo Metropolitan University, Hachioji, 192-0397, Japan
| | - R Higashinaka
- Department of Physics, Tokyo Metropolitan University, Hachioji, 192-0397, Japan
| | - T D Matsuda
- Department of Physics, Tokyo Metropolitan University, Hachioji, 192-0397, Japan
| | - Y Aoki
- Department of Physics, Tokyo Metropolitan University, Hachioji, 192-0397, Japan
| | - T Mizokawa
- Department of Applied Physics, Waseda University, Tokyo, 169-8555, Japan
| | - N L Saini
- Dipartimento di Fisica, Universitá di Roma "La Sapienza" - Piazzale Aldo Moro 2, 00185, Roma, Italy.
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37
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Ieda R, Hosoya S, Tajima S, Atsumi K, Kamiya T, Nozawa A, Aoki Y, Tasumi S, Koyama T, Nakamura O, Suzuki Y, Kikuchi K. Identification of the sex-determining locus in grass puffer (Takifugu niphobles) provides evidence for sex-chromosome turnover in a subset of Takifugu species. PLoS One 2018; 13:e0190635. [PMID: 29293639 PMCID: PMC5749833 DOI: 10.1371/journal.pone.0190635] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Accepted: 12/18/2017] [Indexed: 12/23/2022] Open
Abstract
There is increasing evidence for frequent turnover in sex chromosomes in vertebrates. Yet experimental systems suitable for tracing the detailed process of turnover are rare. In theory, homologous turnover is possible if the new sex-determining locus is established on the existing sex-chromosome. However, there is no empirical evidence for such an event. The genus Takifugu includes fugu (Takifugu rubripes) and its two closely-related species whose sex is most likely determined by a SNP at the Amhr2 locus. In these species, males are heterozygous, with G and C alleles at the SNP site, while females are homozygous for the C allele. To determine if a shift in the sex-determining locus occurred in another member of this genus, we used genetic mapping to characterize the sex-chromosome systems of Takifugu niphobles. We found that the G allele of Amhr2 is absent in T. niphobles. Nevertheless, our initial mapping suggests a linkage between the phenotypic sex and the chromosome 19, which harbors the Amhr2 locus. Subsequent high-resolution analysis using a sex-reversed fish demonstrated that the sex-determining locus maps to the proximal end of chromosome 19, far from the Amhr2 locus. Thus, it is likely that homologous turnover involving these species has occurred. The data also showed that there is a male-specific reduction of recombination around the sex-determining locus. Nevertheless, no evidence for sex-chromosome differentiation was detected: the reduced recombination depended on phenotypic sex rather than genotypic sex; no X- or Y-specific maker was obtained; the YY individual was viable. Furthermore, fine-scale mapping narrowed down the new sex-determining locus to the interval corresponding to approximately 300-kb of sequence in the fugu genome. Thus, T. niphobles is determined to have a young and small sex-determining region that is suitable for studying an early phase of sex-chromosome evolution and the mechanisms underlying turnover of sex chromosome.
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Affiliation(s)
- Risa Ieda
- Fisheries Laboratory, University of Tokyo, Hamamatsu, Shizuoka, Japan
| | - Sho Hosoya
- Fisheries Laboratory, University of Tokyo, Hamamatsu, Shizuoka, Japan
| | - Shota Tajima
- Fisheries Laboratory, University of Tokyo, Hamamatsu, Shizuoka, Japan
| | - Kazufumi Atsumi
- Fisheries Laboratory, University of Tokyo, Hamamatsu, Shizuoka, Japan
| | - Takashi Kamiya
- Fisheries Laboratory, University of Tokyo, Hamamatsu, Shizuoka, Japan
| | - Aoi Nozawa
- Fisheries Laboratory, University of Tokyo, Hamamatsu, Shizuoka, Japan
| | - Yuma Aoki
- Fisheries Laboratory, University of Tokyo, Hamamatsu, Shizuoka, Japan
- School of Marine Biosciences, Kitasato University, Sagamihara, Kanagawa, Japan
| | - Satoshi Tasumi
- Fisheries Laboratory, University of Tokyo, Hamamatsu, Shizuoka, Japan
| | - Takashi Koyama
- Fisheries Laboratory, University of Tokyo, Hamamatsu, Shizuoka, Japan
| | - Osamu Nakamura
- School of Marine Biosciences, Kitasato University, Sagamihara, Kanagawa, Japan
| | - Yuzuru Suzuki
- Fisheries Laboratory, University of Tokyo, Hamamatsu, Shizuoka, Japan
| | - Kiyoshi Kikuchi
- Fisheries Laboratory, University of Tokyo, Hamamatsu, Shizuoka, Japan
- * E-mail:
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38
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Kameda M, Ichihara M, Maruyama S, Kurokawa N, Aoki Y, Okumura S, Uesugi K. Advancement of magma fragmentation by inhomogeneous bubble distribution. Sci Rep 2017; 7:16755. [PMID: 29196692 PMCID: PMC5711883 DOI: 10.1038/s41598-017-16941-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Accepted: 11/17/2017] [Indexed: 11/09/2022] Open
Abstract
Decompression times reported in previous studies suggest that thoroughly brittle fragmentation is unlikely in actual explosive volcanic eruptions. What occurs in practice is brittle-like fragmentation, which is defined as the solid-like fracture of a material whose bulk rheological properties are close to those of a fluid. Through laboratory experiments and numerical simulation, the link between the inhomogeneous structure of bubbles and the development of cracks that may lead to brittle-like fragmentation was clearly demonstrated here. A rapid decompression test was conducted to simulate the fragmentation of a specimen whose pore morphology was revealed by X-ray microtomography. The dynamic response during decompression was observed by high-speed photography. Large variation was observed in the responses of the specimens even among specimens with equal bulk rheological properties. The stress fields of the specimens under decompression computed by finite element analysis shows that the presence of satellite bubbles beneath a large bubble induced the stress concentration. On the basis of the obtained results, a new mechanism for brittle-like fragmentation is proposed. In the proposed scenario, the second nucleation of bubbles near the fragmentation surface is an essential process for the advancement of fragmentation in an upward magma flow in a volcanic conduit.
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Affiliation(s)
- M Kameda
- Department of Mechanical Systems Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo, 184-8588, Japan.
| | - M Ichihara
- Earthquake Research Institute, University of Tokyo, Bunkyo-ku, Tokyo, 113-0032, Japan
| | - S Maruyama
- Department of Mechanical Systems Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo, 184-8588, Japan
| | - N Kurokawa
- Department of Mechanical Systems Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo, 184-8588, Japan
| | - Y Aoki
- Department of Mechanical Systems Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo, 184-8588, Japan
| | - S Okumura
- Department of Earth Science, Tohoku University, Sendai, Miyagi, 980-8578, Japan
| | - K Uesugi
- Japan Synchrotron Radiation Research Institute, Sayo-cho, Hyogo, 679-5198, Japan
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van Westering T, Johansson H, Coenen-Stass A, Miyatake S, Tanihata J, Takeda S, Yokota T, Lehtiö J, Wood M, El Andaloussi S, Roberts T, Aoki Y. Comparative high resolution proteomic analysis of dystrophic mouse models reveals a core dystrophic proteome and the impact of aging. Neuromuscul Disord 2017. [DOI: 10.1016/j.nmd.2017.06.271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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40
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Nishiyama A, Niihori T, Warita H, Izumi R, Akiyama T, Kato M, Suzuki N, Aoki Y, Aoki M. Targeted next-generation sequencing in japanese familial amyotrophic lateral sclerosis reveals diffrences in the genetic variations across populations. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.470] [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: 11/15/2022]
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41
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Sato M, Miyazaki D, Shiba Y, Echigoya Y, Yokota T, Aoki Y, Takeda S, Nakamura A. The exon 45 skipping therapy of induced pluripotent stem cells derived cardiomyocyte from the DMD patient with exon 46-55 deletion. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.420] [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: 11/26/2022]
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42
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Miyazaki D, Sato M, Shiba Y, Echigoya Y, Yokota T, Aoki Y, Takeda S, Nakamura A. Dystrophin-deficient cardiomyocyte derived from Duchenne Muscular Dystrophy specific induced pluripotent stem cells carrying the deletion of exon 46-55 in DMD gene. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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43
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Aoki Y, Kumakiri J, Itakura A, Kikuchi I, Takahashi N, Satoru T. Should sexual intercourse be avoided during the embryo transfer cycle? Life-threatening ruptured heterotopic pregnancy after single thawed embryo transfer: case report and review of the literature. CLIN EXP OBSTET GYN 2017. [DOI: 10.12891/ceog3647.2017] [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]
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44
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Matsuo K, Shimada M, Aoki Y, Sakamoto M, Fujiwara H, Takeshima N, Matsumoto T, Mikami M, Sugiyama T. Comparison of adjuvant therapy for node-positive, high-risk, early-stage cervical cancer: Systemic chemotherapy vs pelvic irradiation. Gynecol Oncol 2017. [DOI: 10.1016/j.ygyno.2017.03.165] [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: 11/26/2022]
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45
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Aoki Y, Wehage SL, Talalay P. Quantification of skin erythema response to topical alcohol in alcohol-intolerant East Asians. Skin Res Technol 2017; 23:593-596. [PMID: 28513003 DOI: 10.1111/srt.12376] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/18/2017] [Indexed: 12/20/2022]
Abstract
BACKGROUND/PURPOSE Severe alcohol intolerance characterized by flushing, headache, nausea, and tachycardia even after very modest oral alcohol consumption, is common among East Asians (Chinese, Japanese, Koreans) and has been associated with the accumulation of acetaldehyde resulting from genetic polymorphism of aldehyde dehydrogenase (ALDH). These individuals also display erythema of the skin in response to exposure to topical alcohol. We have recently observed that dietary phytochemicals such as sulforaphane can accelerate the disposal of acetaldehyde from cells and animals by inducing ALDH. The goal of this study was to quantify the erythema response of skin to topical alcohol exposure. METHODS The erythema response of the forearm skin of healthy Japanese with unusual alcohol sensitivity evoked by a range of very low doses of alcohol (2, 4, 8, and 16 μmol/cm2 ) was determined by means of a chromometer, which measures a* values (red-green scale). RESULTS The magnitude of the a* response (∆a*) to alcohol was time- and dose-dependent, but differed considerably among individuals. It was much higher in those individuals who claimed to be alcohol intolerant, and ∆a* was unrelated to the initial a* values of the skin prior to alcohol challenge. CONCLUSION The ∆a* index is suitable for the quantitative determination of topical alcohol-induced erythema response, and the evaluation of effectiveness of protective strategies against erythema response.
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Affiliation(s)
- Y Aoki
- Lewis B. and Dorothy Cullman Chemoprotection Center, Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - S L Wehage
- Lewis B. and Dorothy Cullman Chemoprotection Center, Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - P Talalay
- Lewis B. and Dorothy Cullman Chemoprotection Center, Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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van Westering T, Johansson H, Coenen-Stass A, Tanihata J, Takeda S, Yokota T, Lehtiö J, Wood M, El Andaloussi S, Roberts T, Aoki Y. Age-related and mutation-independent proteomic changes in dystrophic mouse muscle. Neuromuscul Disord 2017. [DOI: 10.1016/s0960-8966(17)30231-6] [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: 11/15/2022]
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47
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Manzano R, Aoki Y, Lee Y, Dafinca R, Aoki M, Douglas A, Varela M, Sathyaprakash C, Scaber J, Barbagallo P, Vader P, Mäger I, Ezzat K, Turner M, Ito N, Gasco S, Ohbayashi N, El Andaloussi S, Taked S, Fukuda M, Talbot K, Wood M. C9ORF72 and RAB7L1 regulate vesicle traffi cking in Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Neuromuscul Disord 2017. [DOI: 10.1016/s0960-8966(17)30312-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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48
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Aoki S, Aoki Y, Bečirević D, Bernard C, Blum T, Colangelo G, Della Morte M, Dimopoulos P, Dürr S, Fukaya H, Golterman M, Gottlieb S, Hashimoto S, Heller UM, Horsley R, Jüttner A, Kaneko T, Lellouch L, Leutwyler H, Lin CJD, Lubicz V, Lunghi E, Mawhinney R, Onogi T, Pena C, Sachrajda CT, Sharpe SR, Simula S, Sommer R, Vladikas A, Wenger U, Wittig H. Review of lattice results concerning low-energy particle physics: Flavour Lattice Averaging Group (FLAG). Eur Phys J C Part Fields 2017; 77:112. [PMID: 29033670 PMCID: PMC5588406 DOI: 10.1140/epjc/s10052-016-4509-7] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 11/11/2016] [Indexed: 06/07/2023]
Abstract
We review lattice results related to pion, kaon, D- and B-meson physics with the aim of making them easily accessible to the particle-physics community. More specifically, we report on the determination of the light-quark masses, the form factor [Formula: see text], arising in the semileptonic [Formula: see text] transition at zero momentum transfer, as well as the decay constant ratio [Formula: see text] and its consequences for the CKM matrix elements [Formula: see text] and [Formula: see text]. Furthermore, we describe the results obtained on the lattice for some of the low-energy constants of [Formula: see text] and [Formula: see text] Chiral Perturbation Theory. We review the determination of the [Formula: see text] parameter of neutral kaon mixing as well as the additional four B parameters that arise in theories of physics beyond the Standard Model. The latter quantities are an addition compared to the previous review. For the heavy-quark sector, we provide results for [Formula: see text] and [Formula: see text] (also new compared to the previous review), as well as those for D- and B-meson-decay constants, form factors, and mixing parameters. These are the heavy-quark quantities most relevant for the determination of CKM matrix elements and the global CKM unitarity-triangle fit. Finally, we review the status of lattice determinations of the strong coupling constant [Formula: see text].
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Affiliation(s)
- S. Aoki
- Center for Gravitational Physics, Yukawa Institute for Theoretical Physics, Kyoto University, Kitashirakawa Oiwakecho, Sakyo-ku, Kyoto, 606-8502 Japan
| | - Y. Aoki
- Kobayashi-Maskawa Institute for the Origin of Particles and the Universe (KMI), Nagoya University, Nagoya, 464-8602 Japan
- Brookhaven National Laboratory, RIKEN BNL Research Center, Upton, NY 11973 USA
- High Energy Accelerator Research Organization (KEK), Tsukuba, 305-0801 Japan
| | - D. Bečirević
- Laboratoire de Physique Théorique (UMR8627), CNRS, Université Paris-Sud, Université Paris-Saclay, 91405 Orsay, France
| | - C. Bernard
- Department of Physics, Washington University, Saint Louis, MO 63130 USA
| | - T. Blum
- Brookhaven National Laboratory, RIKEN BNL Research Center, Upton, NY 11973 USA
- Physics Department, University of Connecticut, Storrs, CT 06269-3046 USA
| | - G. Colangelo
- Albert Einstein Center for Fundamental Physics, Institut für Theoretische Physik, Universität Bern, Sidlerstr. 5, 3012 Bern, Switzerland
| | - M. Della Morte
- CP3-Origins and Danish IAS, University of Southern Denmark, Campusvej 55, 5230 Odense M, Denmark
- IFIC (CSIC), c/ Catedrático José Beltrán, 2, 46980 Paterna, Spain
| | - P. Dimopoulos
- Centro Fermi-Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi Compendio del Viminale, Piazza del Viminiale 1, 00184 Rome, Italy
- c/o Dipartimento di Fisica, Università di Roma Tor Vergata, Via della Ricerca Scientifica 1, 00133 Rome, Italy
| | - S. Dürr
- University of Wuppertal, Gaußstraße 20, 42119 Wuppertal, Germany
- Jülich Supercomputing Center, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - H. Fukaya
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043 Japan
| | - M. Golterman
- Department of Physics and Astronomy, San Francisco State University, San Francisco, CA 94132 USA
| | - Steven Gottlieb
- Department of Physics, Indiana University, Bloomington, IN 47405 USA
| | - S. Hashimoto
- High Energy Accelerator Research Organization (KEK), Tsukuba, 305-0801 Japan
- School of High Energy Accelerator Science, The Graduate University for Advanced Studies (Sokendai), Tsukuba, 305-0801 Japan
| | - U. M. Heller
- American Physical Society (APS), One Research Road, Ridge, NY 11961 USA
| | - R. Horsley
- Higgs Centre for Theoretical Physics, School of Physics and Astronomy, University of Edinburgh, Edinburgh, EH9 3FD UK
| | - A. Jüttner
- School of Physics and Astronomy, University of Southampton, Southampton, SO17 1BJ UK
| | - T. Kaneko
- High Energy Accelerator Research Organization (KEK), Tsukuba, 305-0801 Japan
- School of High Energy Accelerator Science, The Graduate University for Advanced Studies (Sokendai), Tsukuba, 305-0801 Japan
| | - L. Lellouch
- Centre de Physique Théorique, UMR 7332, CNRS, Aix-Marseille Université, Université de Toulon, 13288 Marseille, France
| | - H. Leutwyler
- Albert Einstein Center for Fundamental Physics, Institut für Theoretische Physik, Universität Bern, Sidlerstr. 5, 3012 Bern, Switzerland
| | - C.-J. D. Lin
- Centre de Physique Théorique, UMR 7332, CNRS, Aix-Marseille Université, Université de Toulon, 13288 Marseille, France
- Institute of Physics, National Chiao-Tung University, Hsinchu, 30010 Taiwan
| | - V. Lubicz
- Dipartimento di Matematica e Fisica, Università Roma Tre, Via della Vasca Navale 84, 00146 Rome, Italy
- Sezione di Roma Tre, INFN, Via della Vasca Navale 84, 00146 Rome, Italy
| | - E. Lunghi
- Department of Physics, Indiana University, Bloomington, IN 47405 USA
| | - R. Mawhinney
- Physics Department, Columbia University, New York, NY 10027 USA
| | - T. Onogi
- Department of Physics, Osaka University, Toyonaka, Osaka 560-0043 Japan
| | - C. Pena
- Departamento de Física Teórica, Instituto de Física Teórica UAM/CSIC, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
| | - C. T. Sachrajda
- School of Physics and Astronomy, University of Southampton, Southampton, SO17 1BJ UK
| | - S. R. Sharpe
- Physics Department, University of Washington, Seattle, WA 98195-1560 USA
| | - S. Simula
- Sezione di Roma Tre, INFN, Via della Vasca Navale 84, 00146 Rome, Italy
| | - R. Sommer
- John von Neumann Institute for Computing (NIC), DESY, Platanenallee 6, 15738 Zeuthen, Germany
| | - A. Vladikas
- Sezione di Tor Vergata, INFN, c/o Dipartimento di Fisica, Università di Roma Tor Vergata, Via della Ricerca Scientifica 1, 00133 Rome, Italy
| | - U. Wenger
- Albert Einstein Center for Fundamental Physics, Institut für Theoretische Physik, Universität Bern, Sidlerstr. 5, 3012 Bern, Switzerland
| | - H. Wittig
- PRISMA Cluster of Excellence, Institut für Kernphysik and Helmholtz Institute Mainz, University of Mainz, 55099 Mainz, Germany
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Aoki Y, Kumakiri J, Itakura A, Kikuchi I, Takahashi N, Satoru T. Should sexual intercourse be avoided during the embryo transfer cycle? Life-threatening ruptured heterotopic pregnancy after single thawed embryo transfer: case report and review of the literature. CLIN EXP OBSTET GYN 2017; 44:489-491. [PMID: 29949304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
BACKGROUND To report the life-threatening complication of a raptured heterotopic pregnancy occurring from thawed single embryo transfer. CASE REPORT A 33-year-old woman underwent in vitro fertilization (IVF) under a step-up regimen. After oocyte collection, blastocysts were frozen, and a single frozen-thawed blastocyst was then transferred according to the natural cycle. On day 17 after embryo transfer, an intrauterine pregnancy was confirmed. On day 28, she complained of sudden abdominal pain and ultrasonography revealed marked fluid retention in the peritoneal cavity. Emergency laparoscopy was performed, revealing hemoperitoneum and a ruptured interstitial heterotopic pregnancy (HP), which was then resected laparoscopically. Because sexual intercourse had occurred shortly before the transfer, a HP comprising a spontaneous pregnancy and a pregnancy achieved by assisted reproductive technology was assumed. The fetus in the uterus survived and was delivered. CONCLUSION In this case, however, despite the single embryo transfer during the natural-cycle frozen-thawed embryo transfer process, the risk of life-threatening complication as a HP as a consequence of spontaneous pregnancy after sexual intercourse remained.
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Uemura R, Tachibana D, Kurihara Y, Pooh RK, Aoki Y, Koyama M. Prenatal findings of hypertrophic cardiomyopathy in a severe case of Costello syndrome. Ultrasound Obstet Gynecol 2016; 48:799-800. [PMID: 26916728 DOI: 10.1002/uog.15888] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 02/12/2016] [Accepted: 02/18/2016] [Indexed: 06/05/2023]
Affiliation(s)
- R Uemura
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - D Tachibana
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Y Kurihara
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - R K Pooh
- CRIFM Clinical Research Institute of Fetal Medicine PMC, Osaka, Japan
| | - Y Aoki
- Department of Medical Genetics, Tohoku University School of Medicine, Sendai, Japan
| | - M Koyama
- Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka, Japan
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