腹膜線維症存在下でのカンジダ腹膜炎マウスモデルを用いた、腹膜線維症がカンジダ腹膜炎に及ぼす影響とミカファンギンによる治療効果の評価

Nagasaki University (長崎大学) 博士(医学) Candida peritonitis is a crucial disease, however the optimal antifungal therapy regimen has not been clearly defined. Peritoneal fibrosis (PF) can be caused by abdominal surgery, intra-abdominal infection, and malignant diseases, and is also widely recognized as a...

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Bibliographic Details
Main Author: 芦澤, 信之
Format: Other/Unknown Material
Language:English
Published: Springer Nature 2019
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Online Access:https://nagasaki-u.repo.nii.ac.jp/record/277/files/ISYK1180_Ashizawa.pdf
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Summary:Nagasaki University (長崎大学) 博士(医学) Candida peritonitis is a crucial disease, however the optimal antifungal therapy regimen has not been clearly defined. Peritoneal fibrosis (PF) can be caused by abdominal surgery, intra-abdominal infection, and malignant diseases, and is also widely recognized as a crucial complication of long-term peritoneal dialysis. However, the influence of PF on Candida peritonitis prognosis remains unknown. Here, we evaluated the severity of Candida peritonitis within the context of PF and the efficacy of micafungin using mice. A PF mouse model was generated by intraperitoneally administering chlorhexidine gluconate. Candida peritonitis, induced by intraperitoneal inoculation of Candida albicans, was treated with a 7-day consecutive subcutaneous administration of micafungin. Candida infection caused a higher mortality rate in the PF mice compared with the control mice on day 7. Proliferative Candida invasion into the peritoneum and intra-abdominal organs was confirmed pathologically only in the PF mice. However, all mice in both groups treated with micafungin survived until day 20. Micafungin treatment tends to suppress inflammatory cytokines in the plasma 12?h after infection in both groups. Our results suggest that PF enhances early mortality in Candida peritonitis. Prompt initiation and sufficient doses of micafungin had good efficacy for Candida peritonitis, irrespective of the underlying PF. 長崎大学学位論文 学位記番号:博(医歯薬)甲第1180号 学位授与年月日:令和元年9月4日 Author: Nobuyuki Ashizawa, Taiga Miyazaki, Shinichi Abe, Takahiro Takazono, Tomomi Saijo, Yoko Obata, Shintaro Shimamura, Kazuko Yamamoto, Yoshifumi Imamura, Takehiko Koji, Tomoya Nishino, Koichi Izumikawa, Katsunori Yanagihara, Shigeru Kohno & Hiroshi Mukae Citation: Scientific Reports, 9, 9331; 2019 Nagasaki University (長崎大学), 博士(医学) (2019-09-04) doctoral thesis