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フルテキストURL fulltext.pdf
著者 Chen, Mengxi| Tanaka, Takehiro| Igawa, Takuro| Han, Yanyan| Peng, Fangli| Jin, Zaishun| Yoshino, Tadashi|
キーワード PDX1 PTF1A SALL4 Ectopic pancreas Gastro-duodenum Jejunum
発行日 2023-07
出版物タイトル Heliyon
9巻
7号
出版者 Cell Press
開始ページ e18241
ISSN 2405-8440
資料タイプ 学術雑誌論文
言語 英語
OAI-PMH Set 岡山大学
著作権者 © 2023 The Authors.
論文のバージョン publisher
PubMed ID 37519669
DOI 10.1016/j.heliyon.2023.e18241
Web of Science KeyUT 001043928200001
関連URL isVersionOf https://doi.org/10.1016/j.heliyon.2023.e18241
JaLCDOI 10.18926/AMO/65740
フルテキストURL 77_4_347.pdf
著者 Iwamuro, Masaya| Kondo, Takumi| Ennishi, Daisuke| Fujii, Nobuharu| Matsuoka, Ken-ichi| Takahashi, Takahide| Hirabata, Araki| Tanaka, Takehiro| Otsuka, Fumio| Maeda, Yoshinobu| Okada, Hiroyuki|
抄録 The feasibility of lymphocyte isolation and flow cytometry using a single endoscopic biopsy specimen from the gastrointestinal tract of patients who have undergone hematopoietic stem cell transplantation has not been investigated. We acquired 51 endoscopic biopsy specimens from the gastrointestinal tract of 35 patients. We divided the flow cytometry samples into two groups: group A, successful lymphocyte isolation (n=24), and group B, incomplete isolation (n=27). We compared the backgrounds of the samples between the groups to reveal crucial elements in the successful isolation of lymphocytes residing in the gastrointestinal tract. Comparison between the groups revealed lymphocyte isolation success rates differed between biopsy sites. Isolation was most successful in samples from the duodenum (8/9, 88.9%), followed by the ileum (4/8, 50.0%), large intestine (4/11, 36.4%), and stomach (8/23, 34.8%). Tacrolimus was used more frequently in group B (92.6%) than in group A (62.5%) (p=0.015). Logistic regression analysis revealed that isolation from the duodenum or ileum was a significant factor for successful isolation, while tacrolimus use was not statistically significant. In conclusion, the duodenum and ileum are more suitable sites than the stomach and colorectum for acquiring samples for flow cytometry.
キーワード flow cytometry stem cell transplantation transplantation-associated microangiopathy
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2023-08
77巻
4号
出版者 Okayama University Medical School
開始ページ 347
終了ページ 357
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 英語
著作権者 Copyright Ⓒ 2023 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 37635134
Web of Science KeyUT 001163659800002
フルテキストURL fulltext.pdf
著者 Okuda, Kosaku| Nakahara, Kengo| Ito, Akihiro| Iijima, Yuta| Nomura, Ryosuke| Kumar, Ashutosh| Fujikawa, Kana| Adachi, Kazuya| Shimada, Yuki| Fujio, Satoshi| Yamamoto, Reina| Takasugi, Nobumasa| Onuma, Kunishige| Osaki, Mitsuhiko| Okada, Futoshi| Ukegawa, Taichi| Takeuchi, Yasuo| Yasui, Norihisa| Yamashita, Atsuko| Marusawa, Hiroyuki| Matsushita, Yosuke| Katagiri, Toyomasa| Shibata, Takahiro| Uchida, Koji| Niu, Sheng-Yong| Lang, Nhi B.| Nakamura, Tomohiro| Zhang, Kam Y. J.| Lipton, Stuart A.| Uehara, Takashi|
備考 The version of record of this article, first published in Nature Communications, is available online at Publisher’s website: http://dx.doi.org/10.1038/s41467-023-36232-6|
発行日 2023-02-04
出版物タイトル Nature Communications
14巻
1号
出版者 Nature Portfolio
開始ページ 621
ISSN 2041-1723
資料タイプ 学術雑誌論文
言語 英語
OAI-PMH Set 岡山大学
著作権者 © The Author(s) 2023
論文のバージョン publisher
PubMed ID 36739439
DOI 10.1038/s41467-023-36232-6
Web of Science KeyUT 001024149400011
関連URL isVersionOf https://doi.org/10.1038/s41467-023-36232-6
フルテキストURL fulltext.pdf
著者 Oguni, Kohei| Fukushima, Shinnosuke| Yamamoto, Yukichika| Hasegawa, Kou| Hagiya, Hideharu| Inoshita, Naoko| Otsuka, Fumio|
キーワード Insulinoma octreotide test somatostatin receptor somatostatin scintigraphy
発行日 2023-08-02
出版物タイトル Clinical Case Reports
11巻
8号
出版者 Wiley
開始ページ e7771
ISSN 2050-0904
資料タイプ 学術雑誌論文
言語 英語
OAI-PMH Set 岡山大学
著作権者 © 2023 The Authors.
論文のバージョン publisher
PubMed ID 37546161
DOI 10.1002/ccr3.7771
Web of Science KeyUT 001039569500001
関連URL isVersionOf https://doi.org/10.1002/ccr3.7771
フルテキストURL fulltext.pdf
著者 Iwamuro, Masaya| Tanaka, Takehiro| Otsuka, Motoyuki|
キーワード autoimmune gastritis esophagogastroduodenoscopy genetic predisposition lymphocyte oxidative stress
発行日 2023-06-21
出版物タイトル Current Issues in Molecular Biology
45巻
7号
出版者 MDPI
開始ページ 5263
終了ページ 5275
ISSN 1467-3037
資料タイプ 学術雑誌論文
言語 英語
OAI-PMH Set 岡山大学
著作権者 © 2023 by the authors.
論文のバージョン publisher
PubMed ID 37504250
DOI 10.3390/cimb45070334
Web of Science KeyUT 001035130200001
関連URL isVersionOf https://doi.org/10.3390/cimb45070334
フルテキストURL fulltext.pdf
著者 Iwamuro, Masaya| Tanaka, Takehiro| Kagawa, Shunsuke| Inoo, Shoko| Otsuka, Motoyuki|
キーワード immune checkpoint inhibitor chemotherapy-induced diarrhea immune-related adverse event colitis colonoscopy collagenous colitis
発行日 2023-05-25
出版物タイトル Cureus
15巻
5号
出版者 Springer
開始ページ e39466
ISSN 2168-8184
資料タイプ 学術雑誌論文
言語 英語
OAI-PMH Set 岡山大学
著作権者 © 2023 Iwamuro et al.
論文のバージョン publisher
PubMed ID 37378156
DOI 10.7759/cureus.39466
Web of Science KeyUT 001023091300016
関連URL isVersionOf https://doi.org/10.7759/cureus.39466
フルテキストURL fulltext20230728-01.pdf
著者 Watanabe, Yuta| Tumewu, Stephany Angelia| Yamada, Hajime| Matsui, Hidenori| Yamamoto, Mikihiro| Noutoshi, Yoshiteru| Toyoda, Kazuhiro| Ichinose, Yuki|
キーワード Apoplastic fluid Chemotaxis Chemoattractants Metabolome Pseudomonas syringae
備考 The version of record of this article, first published in Journal of General Plant Pathology, is available online at Publisher’s website: http://dx.doi.org/10.1007/s10327-023-01126-4|
発行日 2023-06-12
出版物タイトル Journal of General Plant Pathology
89巻
4号
出版者 Springer Science and Business Media LLC
開始ページ 219
終了ページ 223
ISSN 1345-2630
NCID AA11449093
資料タイプ 学術雑誌論文
言語 英語
OAI-PMH Set 岡山大学
著作権者 © The Author(s) 2023
論文のバージョン publisher
DOI 10.1007/s10327-023-01126-4
Web of Science KeyUT 001003602200001
関連URL isVersionOf https://doi.org/10.1007/s10327-023-01126-4
フルテキストURL fulltext20230708-01.pdf
著者 Matsuo, Toshihiko| Tanaka, Takehiro| Okada, Kazuya| Notohara, Kenji| Fujii, Keiko| Fujii, Nobuharu|
キーワード mantle cell lymphoma lacrimal gland autologous peripheral blood stem cell transplantation breast cancer tracheal and bronchial infiltration
発行日 2023-07-05
出版物タイトル Journal of Investigative Medicine High Impact Case Reports
11巻
出版者 SAGE Publications
ISSN 2324-7096
資料タイプ 学術雑誌論文
言語 英語
OAI-PMH Set 岡山大学
著作権者 © 2023 American Federation for Medical Research
論文のバージョン publisher
PubMed ID 37403948
DOI 10.1177/23247096231185483
関連URL isVersionOf https://doi.org/10.1177/23247096231185483
フルテキストURL fulltext20230711-01.pdf fig20230711-01.pdf
著者 Takase, Ryosuke| Hagiya, Hideharu| Fujimori, Takumi| Yokoyama, Yukika| Iio, Koji| Honda, Hiroyuki| Hasegawa, Kou| Otsuka, Fumio|
備考 © 2023 Japanese Society of Chemotherapy, Japanese Association for Infectious Diseases, and Japanese Society for Infection Prevention and Control. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/| This fulltext file will be available in Jul. 2024.|
発行日 2023-09
出版物タイトル Journal of Infection and Chemotherapy
29巻
9号
出版者 Elsevier Ltd.
開始ページ 919
終了ページ 921
ISSN 1341-321X
NCID AA11057978
資料タイプ 学術雑誌論文
言語 英語
OAI-PMH Set 岡山大学
著作権者 © 2023 Japanese Society of Chemotherapy, Japanese Association for Infectious Diseases, and Japanese Society for Infection Prevention and Control.
論文のバージョン author
PubMed ID 37230385
DOI 10.1016/j.jiac.2023.05.017
Web of Science KeyUT 001050515100001
関連URL isVersionOf https://doi.org/10.1016/j.jiac.2023.05.017
フルテキストURL fulltext.pdf
著者 Bozlak, Elif| Radovic, Lara| Remer, Viktoria| Rigler, Doris| Allen, Lucy| Brem, Gottfried| Stalder, Gabrielle| Castaneda, Caitlin| Cothran, Gus| Raudsepp, Terje| Okuda, Yu| Moe, Kyaw Kyaw| Moe, Hla Hla| Kounnavongsa, Bounthavone| Keonouchanh, Soukanh| Van, Nguyen Huu| Vu, Van Hai| Shah, Manoj Kumar| Nishibori, Masahide| Kazymbet, Polat| Bakhtin, Meirat| Zhunushov, Asankadyr| Paul, Ripon Chandra| Dashnyam, Bumbein| Nozawa, Ken| Almarzook, Saria| Brockmann, Gudrun A.| Reissmann, Monika| Antczak, Douglas F.| Miller, Donald C.| Sadeghi, Raheleh| Butler-Wemken, Ines von| Kostaras, Nikos| Han, Haige| Manglai, Dugarjaviin| Abdurasulov, Abdugani| Sukhbaatar, Boldbaatar| Ropka-Molik, Katarzyna| Stefaniuk-Szmukier, Monika| Lopes, Maria Susana| Machado, Artur da Câmara| Kalashnikov, Valery V.| Kalinkova, Liliya| Zaitev, Alexander M.| Novoa-Bravo, Miguel| Lindgren, Gabriella| Brooks, Samantha| Rosa, Laura Patterson| Orlando, Ludovic| Juras, Rytis| Kunieda, Tetsuo| Wallner, Barbara|
備考 The version of record of this article, first published in Scientific Reports, is available online at Publisher’s website: http://dx.doi.org/10.1038/s41598-023-35539-0|
発行日 2023-06-02
出版物タイトル Scientific Reports
13巻
1号
出版者 Nature Portfolio
開始ページ 8954
ISSN 2045-2322
資料タイプ 学術雑誌論文
言語 英語
OAI-PMH Set 岡山大学
著作権者 © The Author(s) 2023
論文のバージョン publisher
PubMed ID 37268661
DOI 10.1038/s41598-023-35539-0
Web of Science KeyUT 001000613900036
関連URL isVersionOf https://doi.org/10.1038/s41598-023-35539-0
フルテキストURL fulltext.pdf
著者 Komoto, Satoshi| Noma, Kazuhiro| Kato, Takuya| Kobayashi, Teruki| Nishiwaki, Noriyuki| Narusaka, Toru| Sato, Hiroaki| Katsura, Yuki| Kashima, Hajime| Kikuchi, Satoru| Ohara, Toshiaki| Tazawa, Hiroshi| Fujiwara, Toshiyoshi|
キーワード cancer-associated fibroblast chemotherapy radiotherapy esophageal cancer tumor microenvironment
発行日 2023-05-30
出版物タイトル Cancers
15巻
11号
出版者 MDPI
開始ページ 2971
ISSN 2072-6694
資料タイプ 学術雑誌論文
言語 英語
OAI-PMH Set 岡山大学
著作権者 © 2023 by the authors.
論文のバージョン publisher
PubMed ID 37296933
DOI 10.3390/cancers15112971
Web of Science KeyUT 001006082400001
関連URL isVersionOf https://doi.org/10.3390/cancers15112971
フルテキストURL fulltext.pdf
著者 Furuta, Kazuyuki| Onishi, Hiroka| Ikada, Yuki| Masaki, Kento| Tanaka, Satoshi| Kaito, Chikara|
発行日 2023-04
出版物タイトル Journal of Biological Chemistry
299巻
4号
出版者 Elsevier
開始ページ 104587
ISSN 1083-351X
資料タイプ 学術雑誌論文
言語 英語
OAI-PMH Set 岡山大学
著作権者 © 2023 THE AUTHORS.
論文のバージョン publisher
PubMed ID 36889584
DOI 10.1016/j.jbc.2023.104587
Web of Science KeyUT 001009229100001
関連URL isVersionOf https://doi.org/10.1016/j.jbc.2023.104587
フルテキストURL fulltext20230625-01.pdf
著者 Matsuo, Toshihiko| Hiramatsu‐Asano, Sumie| Sawachika, Hiroshi| Nishimura, Hirotake|
キーワード ANCA-associated vasculitis corneal melt and perforation rituximab scleritis temporal artery biopsy
発行日 2023-06-20
出版物タイトル Clinical Case Reports
11巻
6号
出版者 Wiley
開始ページ e7595
ISSN 2050-0904
資料タイプ 学術雑誌論文
言語 英語
OAI-PMH Set 岡山大学
著作権者 © 2023 The Authors.
論文のバージョン publisher
PubMed ID 37351359
DOI 10.1002/ccr3.7595
関連URL isVersionOf https://doi.org/10.1002/ccr3.7595
フルテキストURL fulltext20230621-01.pdf
著者 Yoshimura, Teizo| Li, Chunning| Wang, Yuze| Matsukawa, Akihiro|
キーワード Breast cancer chemokines chemokine receptors metastasis macrophages
備考 The version of record of this article, first published in Cellular & Molecular Immunology, is available online at Publisher’s website: http://dx.doi.org/10.1038/s41423-023-01013-0|
発行日 2023-05-19
出版物タイトル Cellular & Molecular Immunology
20巻
7号
出版者 Springer Science and Business Media LLC
開始ページ 714
終了ページ 738
ISSN 2042-0226
資料タイプ 学術雑誌論文
言語 英語
OAI-PMH Set 岡山大学
著作権者 © The Author(s) 2023
論文のバージョン publisher
PubMed ID 37208442
DOI 10.1038/s41423-023-01013-0
Web of Science KeyUT 000990897000001
関連URL isVersionOf https://doi.org/10.1038/s41423-023-01013-0
JaLCDOI 10.18926/AMO/65504
フルテキストURL 77_3_335.pdf
著者 Fujii, Kentaro| Hirano, Shuichiro| Kurozumi, Kazuhiko| Date, Isao|
抄録 An 85-year-old woman presented with aphasia due to an occupying lesion in the left frontal lobe near the language area. Complete resection of the contrast-enhancing lesion was performed under awake conditions. The pathological diagnosis was anaplastic astrocytoma, and postoperative radiochemotherapy was administered. Awake surgery is a useful technique to reduce postoperative neurological sequelae and to maximize surgical resection. Although the patient was elderly, which is generally considered high risk, she did not have any severe neurological deficits and had a good outcome. Even in the extreme elderly, awake surgery can be useful for gliomas in language cortices.
キーワード awake surgery high-grade glioma eloquent area elderly patient
Amo Type Case Report
出版物タイトル Acta Medica Okayama
発行日 2023-06
77巻
3号
出版者 Okayama University Medical School
開始ページ 335
終了ページ 340
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 英語
著作権者 Copyright Ⓒ 2023 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 37357636
Web of Science KeyUT 001026663400002
JaLCDOI 10.18926/AMO/65503
フルテキストURL 77_3_331.pdf
著者 Watanabe, Mototsugu| Yamamoto, Hiromasa| Miyoshi, Kentaroh| Sugimoto, Seiichiro| Toyooka, Shinichi|
抄録 Masaoka stage I type A thymomas rarely recur. We report the case of an 82-year-old man who developed endobronchial metastasis after thymothymectomy for Masaoka stage I type A thymoma. Twenty years after surgery, the patient developed bloody sputum, and chest computed tomography revealed a neoplasm obstructing the right upper lobe bronchus of the lung with enlarged mediastinal lymph nodes. He underwent right upper lobectomy and mediastinal lymph node dissection. Although preoperative pathological diagnosis was squamous cell carcinoma of the lung, postoperative histopathology revealed endobronchial metastasis of the thymoma. Nine years later, at age 89, the patient is alive and well.
キーワード endobronchial metastasis type A thymoma bloody sputum
Amo Type Case Report
出版物タイトル Acta Medica Okayama
発行日 2023-06
77巻
3号
出版者 Okayama University Medical School
開始ページ 331
終了ページ 334
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 英語
著作権者 Copyright Ⓒ 2023 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 37357635
Web of Science KeyUT 001026663400001
JaLCDOI 10.18926/AMO/65502
フルテキストURL 77_3_323.pdf
著者 Makino, Keigo| Otani, Yoshihiro| Fujii, Kentaro| Ishida, Joji| Hirano, Shuichiro | Suruga, Yasuki| Washio, Kana| Nishida, Kenji| Yanai, Hiroyuki| Tomida, Shuta| Ennishi, Daisuke| Date, Isao|
抄録 In the current World Health Organization classification of central nervous system tumors, comprehensive genetic and epigenetic analyses are considered essential for precise diagnosis. A 14-year-old male patient who presented with a cerebellar tumor was initially diagnosed with glioblastoma and treated with radiation and concomitant temozolomide chemotherapy after resection. During maintenance temozolomide therapy, a new contrast-enhanced lesion developed in the bottom of the cavity formed by the resection. A second surgery was performed, but the histological findings in specimens from the second surgery were different from those of the first surgery. Although genome-wide DNA methylation profiling was conducted using frozen tissue for a precise diagnosis, the proportion of tumor cells was insufficient and only normal cerebellum was observed. We then performed comprehensive genetic analysis using formalin-fixed paraffin-embedded sections, which revealed MYCN amplification without alteration of IDH1, IDH2, or Histone H3. Finally, the patient was diagnosed with pediatric-type diffuse high-grade glioma, H3-wildtype and IDH-wildtype. In conclusion, comprehensive genetic and epigenetic analysis should be considered in pediatric brain tumor cases.
キーワード comprehensive genomic profiling pediatric brain tumor genome-wide DNA methylation MYCN
Amo Type Case Report
出版物タイトル Acta Medica Okayama
発行日 2023-06
77巻
3号
出版者 Okayama University Medical School
開始ページ 323
終了ページ 330
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 英語
著作権者 Copyright Ⓒ 2023 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 37357634
Web of Science KeyUT 001025850000001
JaLCDOI 10.18926/AMO/65494
フルテキストURL 77_3_291.pdf
著者 Himei, Hitomi| Kato, Hironari| Saragai, Yosuke| Fujii, Yuki| Yamazaki, Tatsuhiro| Uchida, Daisuke| Matsumoto, Kazuyuki| Horiguchi, Shigeru| Tsutsumi, Koichiro| Okada, Hiroyuki|
抄録 We investigated the efficacy and safety of endoscopic plastic stent (PS) placement for hilar benign biliary strictures (BBSs) and compared cases with PS placement above (inside stent, IS) and across (usual stent, US) the sphincter of Oddi. Patients who underwent initial endoscopic PS placement for hilar BBSs between August 2012 and December 2021 were retrospectively analyzed. Hilar BBSs in 88 patients were investigated. Clinical success was achieved in 81 of these cases (92.0%), including 38 patients in the IS group and 43 patients in the US group. Unexpected stent exchange (uSE) before the first scheduled PS exchange occurred in 18 cases (22.2%). The median time from first stent placement to uSE was 35 days. There was no significant difference in the rate and median time to uSE between the two groups. The rates of adverse events such as pancreatitis or cholangitis in the two groups did not significantly differ. However, the rate of difficult stent removal in the IS group (15.8%) was significantly higher than that in the US group (0%) (p=0.0019). US placement is preferable to IS placement for scheduled stent exchange, as it offers the same effectiveness and risk of adverse events with easier stent removal.
キーワード benign biliary stricture inside stent plastic stent
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2023-06
77巻
3号
出版者 Okayama University Medical School
開始ページ 291
終了ページ 299
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 英語
著作権者 Copyright Ⓒ 2023 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 37357630
Web of Science KeyUT 001026279600007
JaLCDOI 10.18926/AMO/65492
フルテキストURL 77_3_273.pdf
著者 Shimizu, Yudai| Kuroda, Masahiro| Nakamitsu, Yuki| Al-Hammad, Wlla E.| Yoshida, Suzuka| Fukumura, Yuka| Nakamura, Yoshihide| Kuroda, Kazuhiro| Kamizaki, Ryo| Imajoh, Satoshi| Tanabe, Yoshinori| Sugimoto, Kohei| Oita, Masataka| Sugianto, Irfan| Bamgbose, Babatunde O.| Yanagi, Yoshinobu| Asaumi, Junichi|
抄録 Diffusion kurtosis (DK) imaging (DKI), a type of restricted diffusion-weighted imaging, has been reported to be useful for tumor diagnoses in clinical studies. We developed a software program to simultaneously create DK images with apparent diffusion coefficient (ADC) maps and conducted an initial clinical study. Multi-shot echo-planar diffusion-weighted images were obtained at b-values of 0, 400, and 800 sec/mm2 for simple DKI, and DK images were created simultaneously with the ADC map. The usefulness of the DK image and ADC map was evaluated using a pixel analysis of all pixels and a median analysis of the pixels of each case. Tumor and normal tissues differed significantly in both pixel and median analyses. In the pixel analysis, the area under the curve was 0.64 for the mean kurtosis (MK) value and 0.77 for the ADC value. In the median analysis, the MK value was 0.74, and the ADC value was 0.75. The MK and ADC values correlated moderately in the pixel analysis and strongly in the median analysis. Our simple DKI system created DK images simultaneously with ADC maps, and the obtained MK and ADC values were useful for differentiating head and neck tumors from normal tissue.
キーワード simple diffusion kurtosis imaging mean kurtosis clinical trial head and neck tumor magnetic resonance imaging
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2023-06
77巻
3号
出版者 Okayama University Medical School
開始ページ 273
終了ページ 280
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 英語
著作権者 Copyright Ⓒ 2023 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 37357628
Web of Science KeyUT 001026279600005
JaLCDOI 10.18926/AMO/65489
フルテキストURL 77_3_243.pdf
著者 Shibata, Yusuke| Eguchi, Jun| Wada, Jun|
抄録 Brown adipose tissue (BAT) plays a critical role in metabolic homeostasis. BAT dysfunction is associated with the development of obesity through an imbalance between energy expenditure and energy intake. The nuclear receptor peroxisome proliferator-activated receptor gamma (PPARγ) is the master regulator of adipogenesis. However, the roles of PPARγ and thiazolidinediones (TZDs) in the regulation of BAT metabolism remain unclear. TZDs, which are selective PPARγ activators, improve systemic insulin resistance in animals and humans. In the present study, we generated brown adipocyte-specific PPARγ-deficient mice (BATγKO) to examine the in vivo roles of PPARγ and TZDs in BAT metabolism. In electron microscopic examinations, brown adipocyte-specific PPARγ deletion promoted severe whitening of brown fat and morphological alteration of mitochondria. Brown adipocyte-specific PPARγ deletion also reduced mRNA expression of BAT-selective genes. Although there was no difference in energy expenditure between control and BATγKO mice in calorimetry, norepinephrine-induced thermogenesis was impaired in BATγKO mice. Moreover, pioglitazone treatment improved diet-induced insulin resistance in the control mice but not in the BATγKO mice. These findings suggest that BAT PPARγ is necessary for the maintenance of brown adipocyte function and for the insulin-sensitizing action of TZDs.
キーワード PPARγ brown adipose tissue thiazolidinediones
Amo Type Original Article
出版物タイトル Acta Medica Okayama
発行日 2023-06
77巻
3号
出版者 Okayama University Medical School
開始ページ 243
終了ページ 254
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 英語
著作権者 Copyright Ⓒ 2023 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 37357625
Web of Science KeyUT 001026279600002