1
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Aoyama Y, Kono Y, Kawahara Y. Gastrointestinal: Carcinoma of the duodenal bulb with rapid growth and distant metastasis. J Gastroenterol Hepatol 2024. [PMID: 38361450 DOI: 10.1111/jgh.16502] [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] [Received: 09/09/2023] [Revised: 12/18/2023] [Accepted: 01/07/2024] [Indexed: 02/17/2024]
Affiliation(s)
- Y Aoyama
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Y Kono
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Y Kawahara
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
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2
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White F, Bücker R, Meyer M, Jasnowski M, Yamano A, Ito S, Ferrara J, Okunishi E, Aoyama Y. The XtaLAB Synergy-ED: progress and latest results. Acta Cryst Sect A 2022. [DOI: 10.1107/s205327332209146x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
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3
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Aoki A, Yamane M, Aoyama Y. A rare case of reactive granulomatous dermatitis during COVID-19: a possible role of cephalosporine and potential mechanisms. J Eur Acad Dermatol Venereol 2022; 36:e609-e611. [PMID: 35352414 PMCID: PMC9114838 DOI: 10.1111/jdv.18119] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 03/25/2022] [Indexed: 12/02/2022]
Affiliation(s)
- A Aoki
- Department of Dermatology, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama, 701-0192, Japan
| | - M Yamane
- Department of Dermatology, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama, 701-0192, Japan
| | - Y Aoyama
- Department of Dermatology, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama, 701-0192, Japan
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4
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Yamamoto R, Saito M, Aoyama Y, Sagehashi R, Saito T, Kashima S, Koizumi A, Nara T, Numakura K, Narita S, Satoh S, Habuchi T. Protective effects of regulatory T cells in renal ischemia/reperfusion injury in mice. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)01165-4] [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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5
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Sakikubo M, Furuyama K, Horiguchi M, Hosokawa S, Aoyama Y, Tsuboi K, Goto T, Hirata K, Masui T, Dor Y, Fujiyama T, Hoshino M, Uemoto S, Kawaguchi Y. Ptf1a inactivation in adult pancreatic acinar cells causes apoptosis through activation of the endoplasmic reticulum stress pathway. Sci Rep 2018; 8:15812. [PMID: 30361559 PMCID: PMC6202406 DOI: 10.1038/s41598-018-34093-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [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: 12/15/2017] [Accepted: 10/11/2018] [Indexed: 02/06/2023] Open
Abstract
Pancreas transcription factor 1 subunit alpha (PTF1A) is one of the key regulators in pancreatogenesis. In adults, it transcribes digestive enzymes, but its other functions remain largely unknown. Recent conditional knockout studies using Ptf1aCreER/floxed heterozygous mouse models have found PTF1A contributes to the identity maintenance of acinar cells and prevents tumorigenesis caused by the oncogenic gene Kras. However, Ptf1a heterozygote is known to behave differently from homozygote. To elucidate the effects of Ptf1a homozygous loss, we prepared Elastase-CreERTM; Ptf1afloxed/floxed mice and found that homozygous Ptf1a deletion in adult acinar cells causes severe apoptosis. Electron microscopy revealed endoplasmic reticulum (ER) stress, a known cause of unfolded protein responses (UPR). We confirmed that UPR was upregulated by the activating transcription factor 6 (ATF6) and protein kinase RNA (PKR)-like endoplasmic reticulum kinase (PERK) pathways, but not the inositol requiring enzyme 1 (IRE1) pathway. Furthermore, we detected the expression of CCAAT-enhancer-binding protein (C/EBP) homologous protein (CHOP), a pro-apoptotic factor, indicating the apoptosis was induced through UPR. Our homozygous model helps clarify the role PTF1A has on the homeostasis and pathogenesis of exocrine pancreas in mice.
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Affiliation(s)
- Morito Sakikubo
- Department of Hepato-Biliary-Pancreatic Surgery and Transplantation, Kyoto University Graduate School of Medicine, Kyoto, Japan.,Department of Clinical Application, Center for iPS cell Research and Application, Kyoto, Japan
| | - Kenichiro Furuyama
- Department of Hepato-Biliary-Pancreatic Surgery and Transplantation, Kyoto University Graduate School of Medicine, Kyoto, Japan.,Department of Clinical Application, Center for iPS cell Research and Application, Kyoto, Japan
| | - Masashi Horiguchi
- Department of Hepato-Biliary-Pancreatic Surgery and Transplantation, Kyoto University Graduate School of Medicine, Kyoto, Japan.,Department of Clinical Application, Center for iPS cell Research and Application, Kyoto, Japan
| | - Shinichi Hosokawa
- Department of Hepato-Biliary-Pancreatic Surgery and Transplantation, Kyoto University Graduate School of Medicine, Kyoto, Japan.,Department of Clinical Application, Center for iPS cell Research and Application, Kyoto, Japan
| | - Yoshiki Aoyama
- Department of Hepato-Biliary-Pancreatic Surgery and Transplantation, Kyoto University Graduate School of Medicine, Kyoto, Japan.,Department of Clinical Application, Center for iPS cell Research and Application, Kyoto, Japan
| | - Kunihiko Tsuboi
- Department of Hepato-Biliary-Pancreatic Surgery and Transplantation, Kyoto University Graduate School of Medicine, Kyoto, Japan.,Department of Clinical Application, Center for iPS cell Research and Application, Kyoto, Japan
| | - Toshihiko Goto
- Department of Hepato-Biliary-Pancreatic Surgery and Transplantation, Kyoto University Graduate School of Medicine, Kyoto, Japan.,Department of Clinical Application, Center for iPS cell Research and Application, Kyoto, Japan
| | - Koji Hirata
- Department of Hepato-Biliary-Pancreatic Surgery and Transplantation, Kyoto University Graduate School of Medicine, Kyoto, Japan.,Department of Clinical Application, Center for iPS cell Research and Application, Kyoto, Japan
| | - Toshihiko Masui
- Department of Hepato-Biliary-Pancreatic Surgery and Transplantation, Kyoto University Graduate School of Medicine, Kyoto, Japan.,Department of Clinical Application, Center for iPS cell Research and Application, Kyoto, Japan
| | - Yuval Dor
- Department of Developmental Biology and Cancer Research, The Institute for Medical Research Israel-Canada, Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Tomoyuki Fujiyama
- Department of Biochemistry and Cellular Biology, National Institute of Neuroscience, NCNP, Tokyo, Japan.,International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Japan
| | - Mikio Hoshino
- Department of Biochemistry and Cellular Biology, National Institute of Neuroscience, NCNP, Tokyo, Japan
| | - Shinji Uemoto
- Department of Hepato-Biliary-Pancreatic Surgery and Transplantation, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yoshiya Kawaguchi
- Department of Clinical Application, Center for iPS cell Research and Application, Kyoto, Japan.
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6
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Takeichi T, Honda A, Okuno Y, Kojima D, Kono M, Nakamura Y, Tohyama M, Tanaka T, Aoyama Y, Akiyama M. Sterol profiles are valuable biomarkers for phenotype expression of Conradi-Hünermann-Happle syndrome with EBP mutations. Br J Dermatol 2018; 179:1186-1188. [PMID: 29851033 DOI: 10.1111/bjd.16823] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- T Takeichi
- Department of Dermatology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - A Honda
- Joint Research Center, Tokyo Medical University Ibaraki Medical Center, Ami, Japan
| | - Y Okuno
- Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya, Japan.,Department of Pediatrics, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - D Kojima
- Department of Pediatrics, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - M Kono
- Department of Dermatology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Y Nakamura
- Department of Pediatrics, Ichinomiya Municipal Hospital, Ichinomiya, Japan
| | - M Tohyama
- Department of Dermatology, Ehime University School of Medicine, Toon, Japan
| | - T Tanaka
- Department of Pediatrics, Kawasaki General Hospital, Kawasaki Medical School, Okayama, Japan
| | - Y Aoyama
- Department of Dermatology, Kawasaki General Hospital, Kawasaki Medical School, Okayama, Japan
| | - M Akiyama
- Department of Dermatology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
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7
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Takeichi T, Katayama C, Tanaka T, Okuno Y, Murakami N, Kono M, Sugiura K, Aoyama Y, Akiyama M. A novel IFIH1 mutation in the pincer domain underlies the clinical features of both Aicardi-Goutières and Singleton-Merten syndromes in a single patient. Br J Dermatol 2017; 178:e111-e113. [PMID: 29270977 DOI: 10.1111/bjd.15869] [Citation(s) in RCA: 10] [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: 01/23/2023]
Affiliation(s)
- T Takeichi
- Departments of Dermatology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - C Katayama
- Departments of Dermatology, Kawasaki General Hospital, Kawasaki Medical School, Okayama, Japan
| | - T Tanaka
- Pediatrics, Kawasaki General Hospital, Kawasaki Medical School, Okayama, Japan
| | - Y Okuno
- Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya, Japan.,Pediatrics, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - N Murakami
- Pediatrics, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - M Kono
- Departments of Dermatology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - K Sugiura
- Department of Dermatology, Fujita Health University School of Medicine, Toyoake, Japan
| | - Y Aoyama
- Departments of Dermatology, Kawasaki General Hospital, Kawasaki Medical School, Okayama, Japan
| | - M Akiyama
- Departments of Dermatology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
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8
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Hashimoto T, Kawakami Y, Wakabayashi H, Oda W, Hamada T, Doi H, Aoyama Y, Iwatsuki K. An unusual clinical presentation of lupus erythematosus tumidus localized on the thigh. Clin Exp Dermatol 2017; 42:638-641. [PMID: 28597962 DOI: 10.1111/ced.13147] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/21/2016] [Indexed: 11/29/2022]
Abstract
A 44-year-old woman with seronegative polyarthritis presented with a 2-year history of a solitary, bluish-red, oedematous, nonscaly, annular and partially reticulated macule on her right thigh. Histopathological findings revealed perivascular and periadnexal lymphocytic infiltrate in the dermis. Alcian blue and colloidal iron stains highlighted mucinous deposit in the upper and mid dermis. Direct immunofluorescence showed a linear deposit of IgG and C3 along the basement membrane zone. Antinuclear antibody was positive at a titre of 1 : 80, with homogenous and speckled patterns. Except for its unusual localization and lack of photosensitivity, our case had the clinical and histopathological features of lupus erythematosus tumidus. These characteristics were also reminiscent of reticular erythematous mucinosis and erythema annulare centrifugum, both of which are considered to be associated with cutaneous lupus erythematosus (CLE). Hydroxychloroquine 200 mg daily led to improvement of the skin lesion. The unusual clinical presentation of our case emphasizes the heterogeneity of clinical manifestations of CLE.
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Affiliation(s)
- T Hashimoto
- Department of Dermatology, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Y Kawakami
- Department of Dermatology, Okayama City Hospital, Okayama, Japan
| | - H Wakabayashi
- Department of Rheumatology, Okayama City Hospital, Okayama, Japan
| | - W Oda
- Department of Pathology, Okayama City Hospital, Okayama, Japan
| | - T Hamada
- Department of Dermatology, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - H Doi
- Department of Dermatology, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Y Aoyama
- Department of Dermatology, Kawasaki Hospital, Okayama, Japan
| | - K Iwatsuki
- Department of Dermatology, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama, Japan
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9
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Shimoda Y, Sato Y, Hayashida Y, Yamazaki Y, Mizukawa Y, Nakajima K, Shiohara T, Aoyama Y. Lichen amyloidosus as a sweat gland/duct-related disorder: resolution associated with restoration of sweating disturbance. Br J Dermatol 2017; 176:1308-1315. [DOI: 10.1111/bjd.15060] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/12/2016] [Indexed: 11/30/2022]
Affiliation(s)
- Y. Shimoda
- Department of Dermatology; Kyorin University School of Medicine; Mitaka Japan
| | - Y. Sato
- Department of Dermatology; Kyorin University School of Medicine; Mitaka Japan
| | - Y. Hayashida
- Dermatology; Kawasaki Medical School; General Medical Center; Okayama Japan
| | - Y. Yamazaki
- Department of Dermatology; Kyorin University School of Medicine; Mitaka Japan
| | - Y. Mizukawa
- Department of Dermatology; Kyorin University School of Medicine; Mitaka Japan
| | - K. Nakajima
- Department of Dermatology; Kochi University School of Medicine; Nankoku Japan
| | - T. Shiohara
- Department of Dermatology; Kyorin University School of Medicine; Mitaka Japan
| | - Y. Aoyama
- Dermatology; Kawasaki Medical School; General Medical Center; Okayama Japan
- Department of Dermatology; Kawasaki Medical School; Kurashiki Japan
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10
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Goto T, Elbahrawy A, Furuyama K, Horiguchi M, Hosokawa S, Aoyama Y, Tsuboi K, Sakikubo M, Hirata K, Masui T, Kubo H, Sakai Y, Uemoto S, Kawaguchi Y. Liver-specific Prox1 inactivation causes hepatic injury and glucose intolerance in mice. FEBS Lett 2017; 591:624-635. [PMID: 28129664 DOI: 10.1002/1873-3468.12570] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [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: 12/03/2016] [Revised: 01/11/2017] [Accepted: 01/23/2017] [Indexed: 11/08/2022]
Abstract
Previous reports have revealed that Prospero-related homeobox 1 (Prox1) is required for the migration and differentiation of hepatoblasts during embryonic liver formation. However, the role of Prox1 in adults remains to be elucidated. We created liver-specific Prox1 knockout mice to verify the role of Prox1 in adult hepatocytes. The mutant mice exhibit hepatic injury and a nonobese, insulin-resistant diabetic phenotype in vivo. Hepatocyte injury is observed predominantly in the perivenous region and is characterized by the formation of vacuoles and emergence of round-shaped mitochondria, suggesting that the effect of Prox1 on the maintenance of adult hepatocytes is region dependent. Furthermore, glycolysis is suppressed, and both oxidative phosphorylation and autophagy are upregulated in the livers of Prox1 knockout mice, indicating that Prox1 has a role in regulating energy homeostasis in hepatocytes.
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Affiliation(s)
- Toshihiko Goto
- Department of Hepato-Biliary-Pancreatic Surgery and Transplantation, Kyoto University Graduate School of Medicine, Japan.,Department of Clinical Application, Center for iPS cell Research and Application, Kyoto, Japan
| | - Ashraf Elbahrawy
- Department of Hepato-Biliary-Pancreatic Surgery and Transplantation, Kyoto University Graduate School of Medicine, Japan.,Department of Internal Medicine, Al-Azhar University, Cairo, Egypt
| | - Kenichiro Furuyama
- Department of Hepato-Biliary-Pancreatic Surgery and Transplantation, Kyoto University Graduate School of Medicine, Japan.,Department of Clinical Application, Center for iPS cell Research and Application, Kyoto, Japan
| | - Masashi Horiguchi
- Department of Hepato-Biliary-Pancreatic Surgery and Transplantation, Kyoto University Graduate School of Medicine, Japan.,Department of Clinical Application, Center for iPS cell Research and Application, Kyoto, Japan
| | - Shinichi Hosokawa
- Department of Hepato-Biliary-Pancreatic Surgery and Transplantation, Kyoto University Graduate School of Medicine, Japan.,Department of Clinical Application, Center for iPS cell Research and Application, Kyoto, Japan
| | - Yoshiki Aoyama
- Department of Hepato-Biliary-Pancreatic Surgery and Transplantation, Kyoto University Graduate School of Medicine, Japan.,Department of Clinical Application, Center for iPS cell Research and Application, Kyoto, Japan
| | - Kunihiko Tsuboi
- Department of Hepato-Biliary-Pancreatic Surgery and Transplantation, Kyoto University Graduate School of Medicine, Japan.,Department of Clinical Application, Center for iPS cell Research and Application, Kyoto, Japan
| | - Morito Sakikubo
- Department of Hepato-Biliary-Pancreatic Surgery and Transplantation, Kyoto University Graduate School of Medicine, Japan.,Department of Clinical Application, Center for iPS cell Research and Application, Kyoto, Japan
| | - Koji Hirata
- Department of Hepato-Biliary-Pancreatic Surgery and Transplantation, Kyoto University Graduate School of Medicine, Japan.,Department of Clinical Application, Center for iPS cell Research and Application, Kyoto, Japan
| | - Toshihiko Masui
- Department of Hepato-Biliary-Pancreatic Surgery and Transplantation, Kyoto University Graduate School of Medicine, Japan.,Department of Clinical Application, Center for iPS cell Research and Application, Kyoto, Japan
| | - Hajime Kubo
- Department of Gastrointestinal Surgery, Kyoto University Graduate School of Medicine, Japan
| | - Yoshiharu Sakai
- Department of Gastrointestinal Surgery, Kyoto University Graduate School of Medicine, Japan
| | - Shinji Uemoto
- Department of Hepato-Biliary-Pancreatic Surgery and Transplantation, Kyoto University Graduate School of Medicine, Japan
| | - Yoshiya Kawaguchi
- Department of Clinical Application, Center for iPS cell Research and Application, Kyoto, Japan
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11
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Machida S, Onizuka M, Toyosaki M, Aoyama Y, Kawai H, Amaki J, Hara R, Ichiki A, Ogawa Y, Kawada H, Ando K. Danaparoid reduces the incidence of hematopoietic stem cell transplantation-associated thrombotic microangiopathy. Bone Marrow Transplant 2016; 52:307-309. [PMID: 27892947 DOI: 10.1038/bmt.2016.270] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- S Machida
- Department of Hematology and Oncology, Tokai University School of Medicine, Isehara, Japan
| | - M Onizuka
- Department of Hematology and Oncology, Tokai University School of Medicine, Isehara, Japan
| | - M Toyosaki
- Department of Hematology and Oncology, Tokai University School of Medicine, Isehara, Japan
| | - Y Aoyama
- Department of Hematology and Oncology, Tokai University School of Medicine, Isehara, Japan
| | - H Kawai
- Department of Hematology and Oncology, Tokai University School of Medicine, Isehara, Japan
| | - J Amaki
- Department of Hematology and Oncology, Tokai University School of Medicine, Isehara, Japan
| | - R Hara
- Department of Hematology and Oncology, Tokai University School of Medicine, Isehara, Japan
| | - A Ichiki
- Department of Hematology and Oncology, Tokai University School of Medicine, Isehara, Japan
| | - Y Ogawa
- Department of Hematology and Oncology, Tokai University School of Medicine, Isehara, Japan
| | - H Kawada
- Department of Hematology and Oncology, Tokai University School of Medicine, Isehara, Japan
| | - K Ando
- Department of Hematology and Oncology, Tokai University School of Medicine, Isehara, Japan
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12
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Takehara A, Aoyama Y, Kurosawa M, Shirafuji Y, Umemura H, Kamiya K, Ushigome Y, Kano Y, Shiohara T, Iwatsuki K. Longitudinal analysis of antibody profiles against plakins in severe drug eruptions: emphasis on correlation with tissue damage in drug-induced hypersensitivity syndrome and drug reaction with eosinophilia and systemic symptoms. Br J Dermatol 2016; 175:944-952. [DOI: 10.1111/bjd.14677] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/12/2016] [Indexed: 12/17/2022]
Affiliation(s)
- A. Takehara
- Department of Dermatology; Okayama University Graduate School of Medicine; Dentistry and Pharmaceutical Sciences; Okayama Japan
| | - Y. Aoyama
- Department of Dermatology; Kawasaki Medical School; Kurashiki Japan
- Department of Dermatology; Kawasaki Hospital; 2-1-80 Nakasange Kitaku Okayama City Okayama 700-8505 Japan
| | - M. Kurosawa
- Department of Epidemiology and Environmental Health; Juntendo University Graduate School of Medicine; Tokyo Japan
| | - Y. Shirafuji
- Department of Dermatology; Okayama University Graduate School of Medicine; Dentistry and Pharmaceutical Sciences; Okayama Japan
| | - H. Umemura
- Department of Dermatology; Okayama University Graduate School of Medicine; Dentistry and Pharmaceutical Sciences; Okayama Japan
| | - K. Kamiya
- Department of Dermatology; Hamamatsu University School of Medicine; Hamamatsu Japan
| | - Y. Ushigome
- Department of Dermatology; Kyorin University School of Medicine; Tokyo Japan
| | - Y. Kano
- Department of Dermatology; Kyorin University School of Medicine; Tokyo Japan
| | - T. Shiohara
- Department of Dermatology; Kyorin University School of Medicine; Tokyo Japan
| | - K. Iwatsuki
- Department of Dermatology; Okayama University Graduate School of Medicine; Dentistry and Pharmaceutical Sciences; Okayama Japan
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13
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Aoyama T, Hirata K, Yamamoto Y, Yokota H, Hayashi H, Aoyama Y, Matsumoto Y. Semi-mechanistic autoinduction model of midazolam in critically ill patients: population pharmacokinetic analysis. J Clin Pharm Ther 2016; 41:392-8. [PMID: 27178380 DOI: 10.1111/jcpt.12395] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Accepted: 04/05/2016] [Indexed: 11/28/2022]
Abstract
WHAT IS KNOWN AND OBJECTIVE Midazolam (MDZ) is commonly used for sedating critically ill patients. The daily dose required for adequate sedation increases in increments over 100 h after administration. The objectives of this study were to characterize the MDZ pharmacokinetics in critically ill patients and to describe the phenomenon of increasing daily dose by means of population pharmacokinetic analysis. METHODS Data were obtained from 30 patients treated in an intensive care unit. The patients received MDZ intravenously as a combination of bolus and continuous infusion. Serum MDZ concentration was assayed by high-performance liquid chromatography. Population pharmacokinetic analysis was performed using the NONMEM software package. The alteration of clearance unexplained by demographic factors and clinical laboratory data was described as an autoinduction of MDZ clearance using a semi-mechanistic pharmacokinetic-enzyme turnover model. RESULTS AND DISCUSSION The final population pharmacokinetic model was a one-compartment model estimated by incorporating a semi-mechanistic pharmacokinetic-enzyme turnover model for clearance, taking autoinduction into account. A significant covariate for MDZ clearance was total bilirubin. An increase in total bilirubin indicated a reduction in MDZ clearance. From simulation using the population pharmacokinetic parameters obtained in this study, MDZ clearance increased 2·3 times compared with pre-induced clearance 100 h after the start of 12·5 mg/h continuous infusion. WHAT IS NEW AND CONCLUSION Autoinduction and total bilirubin were significant predictors of the clearance of MDZ in this population. Step-by-step dosage adjustment using this population pharmacokinetic model may be useful for establishing a MDZ dosage regimen in critically ill patients.
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Affiliation(s)
- T Aoyama
- Laboratory of Clinical Pharmacokinetics, School of Pharmacy, Nihon University, Chiba, Japan
| | - K Hirata
- Department of Pharmacy, Fureai Higashitotsuka Hospital, Yokohama, Japan
| | - Y Yamamoto
- Department of Emergency and Critical Care Medicine, Nippon Medical School Hospital, Tokyo, Japan
| | - H Yokota
- Department of Emergency and Critical Care Medicine, Nippon Medical School Hospital, Tokyo, Japan
| | - H Hayashi
- Laboratory of Pharmacotherapy, School of Pharmacy, Nihon University, Chiba, Japan
| | - Y Aoyama
- Laboratory of Clinical Pharmacokinetics, School of Pharmacy, Nihon University, Chiba, Japan.,Second Department of Anesthesiology, Toho University School of Medicine, Tokyo, Japan
| | - Y Matsumoto
- Laboratory of Clinical Pharmacokinetics, School of Pharmacy, Nihon University, Chiba, Japan
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14
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Matsuda N, Higashi T, Umino H, Makishi G, Hinoshita T, Yoshida T, Nakahara K, Shioya Y, Nishikimi M, Aoyama Y, Numaguchi A. Analysis of early goal-directed enteral nutrition in nagoya university emergency ICU. Intensive Care Med Exp 2015. [PMCID: PMC4796170 DOI: 10.1186/2197-425x-3-s1-a183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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15
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Kim TY, Yoshimoto T, Aoyama Y, Niimi K, Takahashi E. Analysis of the protective effects of a neuronal Cav2.1 calcium channel in brain injury. Neuroscience 2015; 313:110-21. [PMID: 26616403 DOI: 10.1016/j.neuroscience.2015.11.035] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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: 08/13/2015] [Revised: 10/30/2015] [Accepted: 11/16/2015] [Indexed: 01/13/2023]
Abstract
We previously reported that rolling Nagoya mice carrying a mutation in the α1 subunit of the Cav2.1 channel protective from ischemia- and kainate-induced neuronal damage. However, the protective effect of this mutation and its relationship to brain injury recovery have not been examined. To examine the relationship between Cav2.1 channel function and brain injury, we induced cryogenic brain damage in homozygous rolling Nagoya (rol/rol), control wild-type (+/+), ω-agatoxin IVA-pretreated +/+ (ω-aga +/+), and ω-agatoxin IVA-post-treated +/+ (ω-aga-post-treated +/+) mice. We measured the lesion area, blood brain-barrier permeability and performed immunohistochemistry and western blot analysis. The lesions of rol/rol and ω-aga +/+ mice were significantly smaller than those observed in +/+ mice at both day 1 and day 7 after injury. Similar results were shown in blood-brain barrier permeability. We observed more reactive astrogliosis in +/+ mice than in rol/rol or ω-aga +/+ mice. rol/rol and ω-aga +/+ mice had fewer degenerating cells due to cryogenic injury than did +/+ mice at both day 1 and day 7. ω-Aga-post-treated +/+ mice 24h after injury were sacrificed on day 7. The lesions were smaller in ω-aga-post-treated +/+ mice than those in vehicle-treated +/+ mice. We also examined phosphorylated p38 (pp38) at the injured site. ω-Aga-post-treated +/+ mouse brain slices showed weak pp38 signal; vehicle-treated +/+ mouse brain slices were pp38-positive. These findings demonstrate that the mutant Cav2.1 channel exerts a protective effect against cryogenic brain injury in rolling Nagoya mice. Our results indicate that inhibitors of the Cav2.1-dependent p38 signaling cascade would be useful as therapeutic agents in the treatment of brain injury.
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Affiliation(s)
- T Y Kim
- Research Resources Center, RIKEN Brain Science Institute, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - T Yoshimoto
- Research Resources Center, RIKEN Brain Science Institute, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Y Aoyama
- Research Resources Center, RIKEN Brain Science Institute, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - K Niimi
- Research Resources Center, RIKEN Brain Science Institute, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - E Takahashi
- Research Resources Center, RIKEN Brain Science Institute, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.
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Kamiya K, Aoyama Y, Yamasaki O, Kamata A, Yamagami J, Iwatsuki K, Tokura Y. Epitope analysis of antidesmoglein 1 autoantibodies from patients with pemphigus foliaceus across different activity stages. Br J Dermatol 2015; 174:113-9. [DOI: 10.1111/bjd.14098] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/13/2015] [Indexed: 12/15/2022]
Affiliation(s)
- K. Kamiya
- Department of Dermatology Hamamatsu University School of Medicine 1‐20‐1 Handayama Higashi‐ku Hamamatsu 431‐3192 Japan
- Department of Dermatology Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences Okayama Japan
| | - Y. Aoyama
- Department of Dermatology Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences Okayama Japan
- Department of Dermatology Kawasaki Hospital Kawasaki Medical School Okayama Japan
| | - O. Yamasaki
- Department of Dermatology Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences Okayama Japan
| | - A. Kamata
- Department of Dermatology Keio University School of Medicine Tokyo Japan
| | - J. Yamagami
- Department of Dermatology Keio University School of Medicine Tokyo Japan
| | - K. Iwatsuki
- Department of Dermatology Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences Okayama Japan
| | - Y. Tokura
- Department of Dermatology Hamamatsu University School of Medicine 1‐20‐1 Handayama Higashi‐ku Hamamatsu 431‐3192 Japan
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Ae R, Kojo T, Tsuboi S, Aoyama Y, Kotani K, Takamura H, Tsogzolbaatar EO, Yamada M, Mizusawa H, Nakamura Y. Epidemiologic Features of Human Prion Diseases in Japan: A Prospective 14-year Surveillance. Int J Epidemiol 2015. [DOI: 10.1093/ije/dyv096.231] [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: 11/13/2022] Open
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18
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Tsuboi S, Kotani K, Aoyama Y, Ae R, Kojo T, Tsogzolbaatar EO, Takamura H, Nakamura Y. A Disease Map of Male Suicide in Japan and its Association with Socioeconomic Factors. Int J Epidemiol 2015. [DOI: 10.1093/ije/dyv096.248] [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: 11/12/2022] Open
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19
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Nagano H, Yokoyama H, Hashimoto H, Watanabe M, Nakanishi M, Aoyama Y, Kawasaki T, Kishida Y, Katou M, Shimo T, Ishizuka K. EP-1228: Separated arc vs. single arc VMAT therapy for the prostate in the prone position. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)41220-4] [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: 11/30/2022]
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20
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Miyake T, Yamamoto T, Hirai Y, Otsuka M, Hamada T, Tsuji K, Morizane S, Suzuki D, Aoyama Y, Iwatsuki K. Survival rates and prognostic factors of Epstein-Barr virus-associated hydroa vacciniforme and hypersensitivity to mosquito bites. Br J Dermatol 2014; 172:56-63. [DOI: 10.1111/bjd.13411] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/15/2014] [Indexed: 11/28/2022]
Affiliation(s)
- T. Miyake
- Department of Dermatology; Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; 2-5-1 Shikata-cho Kita-ku Okayama 700-8558 Japan
| | - T. Yamamoto
- Department of Dermatology; Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; 2-5-1 Shikata-cho Kita-ku Okayama 700-8558 Japan
- Department of Dermatology; Kawasaki Medical School; Okayama Japan
| | - Y. Hirai
- Department of Dermatology; Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; 2-5-1 Shikata-cho Kita-ku Okayama 700-8558 Japan
| | - M. Otsuka
- Department of Dermatology; Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; 2-5-1 Shikata-cho Kita-ku Okayama 700-8558 Japan
| | - T. Hamada
- Department of Dermatology; Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; 2-5-1 Shikata-cho Kita-ku Okayama 700-8558 Japan
| | - K. Tsuji
- Department of Dermatology; Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; 2-5-1 Shikata-cho Kita-ku Okayama 700-8558 Japan
| | - S. Morizane
- Department of Dermatology; Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; 2-5-1 Shikata-cho Kita-ku Okayama 700-8558 Japan
| | - D. Suzuki
- Department of Dermatology; Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; 2-5-1 Shikata-cho Kita-ku Okayama 700-8558 Japan
| | - Y. Aoyama
- Department of Dermatology; Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; 2-5-1 Shikata-cho Kita-ku Okayama 700-8558 Japan
| | - K. Iwatsuki
- Department of Dermatology; Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; 2-5-1 Shikata-cho Kita-ku Okayama 700-8558 Japan
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Kurata M, Mizukawa Y, Aoyama Y, Shiohara T. Herpes simplex virus reactivation as a trigger of mucous lesions in pemphigus vulgaris. Br J Dermatol 2014; 171:554-60. [DOI: 10.1111/bjd.12961] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/06/2014] [Indexed: 12/31/2022]
Affiliation(s)
- M. Kurata
- Department of Dermatology Kyorin University School of Medicine Shinkawa, 6‐20‐2 Mitaka Tokyo 181‐8611 Japan
| | - Y. Mizukawa
- Department of Dermatology Kyorin University School of Medicine Shinkawa, 6‐20‐2 Mitaka Tokyo 181‐8611 Japan
| | - Y. Aoyama
- Department of Dermatology Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences Okayama 700‐8558 Japan
| | - T. Shiohara
- Department of Dermatology Kyorin University School of Medicine Shinkawa, 6‐20‐2 Mitaka Tokyo 181‐8611 Japan
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Morii K, Nishisaka M, Nakamura S, Oda T, Aoyama Y, Yamamoto T, Kishida H, Okushin H, Uesaka K. A case of synthetic oestrogen-induced autoimmune hepatitis with microvesicular steatosis. J Clin Pharm Ther 2014; 39:573-6. [DOI: 10.1111/jcpt.12191] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2014] [Accepted: 06/16/2014] [Indexed: 12/23/2022]
Affiliation(s)
- K. Morii
- Department of Hepatology; Japanese Red Cross Society Himeji Hospital; Himeji Hyogo Japan
| | - M. Nishisaka
- Department of Hepatology; Japanese Red Cross Society Himeji Hospital; Himeji Hyogo Japan
| | - S. Nakamura
- Department of Gastroenterology and Hepatology; Okayama University Hospital; Okayama Japan
| | - T. Oda
- Department of Hepatology; Japanese Red Cross Society Himeji Hospital; Himeji Hyogo Japan
| | - Y. Aoyama
- Department of Hepatology; Japanese Red Cross Society Himeji Hospital; Himeji Hyogo Japan
| | - T. Yamamoto
- Department of Hepatology; Japanese Red Cross Society Himeji Hospital; Himeji Hyogo Japan
| | - H. Kishida
- Department of Hepatology; Japanese Red Cross Society Himeji Hospital; Himeji Hyogo Japan
| | - H. Okushin
- Department of Hepatology; Japanese Red Cross Society Himeji Hospital; Himeji Hyogo Japan
| | - K. Uesaka
- Department of Hepatology; Japanese Red Cross Society Himeji Hospital; Himeji Hyogo Japan
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Nagano H, Yokoyama H, Hashimoto H, Watanabe M, Nakanishi M, Aoyama Y, Kishida Y, Onishi T. EP-1556: Separated partial arc VMAT compared with single full or angled partial arc VMAT for the prostate carcinoma. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)31674-1] [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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Manabe M, Okita J, Harada N, Takakuwa T, Aoyama Y, Kumura T, Ohta T, Furukawa Y, Mugitani A. Reciprocal T(7;11)(P15;P15): A Rare but Recurrent Translocation in Acute Myeloid Leukemia. Report of 3 Cases. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt459.94] [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: 11/12/2022] Open
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25
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Ono S, Tanioka M, Tanizaki H, Fujisawa A, Koga H, Hashimoto T, Kamiya K, Aoyama Y, Iwatsuki K, Miyachi Y. Concurrence of autoantibodies to bullous pemphigoid antigens and desmoglein 3: analysis of pathogenic and nonpathogenic antibodies. Br J Dermatol 2013; 168:1357-60. [PMID: 23738642 DOI: 10.1111/bjd.12143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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26
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Nakamura S, Asai H, Akita S, Aoyama Y, Kamikubo Y, Sugama Y, Takei H, Nishio T, Maruyama K, Hayakawa K. Development of Fast and High-spatial-resolution 3-dimensional Dosimetry Equipment for Both the Narrow Beam and the Broad Beam in Proton Therapy. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.351] [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: 10/27/2022]
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Manabe M, Nishii T, Harada N, Nakano H, Takakuwa T, Okamoto S, Aoyama Y, Kumura T, Mugitani A. Chronic Myelogenous Leukaemia Following S-1 THerapy for Rectal Cancer: A Case report. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)32533-3] [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: 10/25/2022] Open
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28
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Nishimura K, Tanaka T, Tsubuku T, Matono S, Nagano T, Murata K, Aoyama Y, Yanagawa T, Shirouzu K, Fujita H. Reflux esophagitis after esophagectomy: impact of duodenogastroesophageal reflux. Dis Esophagus 2012; 25:381-5. [PMID: 21967617 DOI: 10.1111/j.1442-2050.2011.01268.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Reflux esophagitis (RE) is a known complication disturbing patients' quality of life after esophageal resection. It is generally recognized that bile reflux as well as acid reflux cause RE. However, the clinical influence of acid and bile reflux, and Helicobacter pylori (H. pylori) infection on RE in the cervical esophagus after esophagectomy is not yet clarified. Sixty patients who underwent cervical esophagogastrostomy following esophagectomy were enrolled in this study. They underwent examination for H. pylori infection, endoscopic examination, and continuous 24-hour pH and bilirubin monitoring, at 1 month after surgery. The influence of acid and/or bile reflux, H. pylori infection, and others on the development of RE were investigated. RE was observed in 19 patients (32%) at 1 month after esophagogastrostomy, mild RE in 16 (27%), and severe RE in 3 (5%). The percentage of time duration of both acid and bile reflux into the cervical esophagus was higher in patients with RE than in those without (P = 0.027, P < 0.001). A significant difference in %time pH < 4 acid reflux was found between mild RE and severe RE (P = 0.014), and a statistical difference in %time abs. > 0.14 between non-RE and mild RE (P = 0.017). Acid and/or bile reflux was observed in 31 patients (52%), acid-only reflux in 6 (10%), bile-only reflux in 15 (25%), and acid-and-bile reflux in 10 (17%). Severe RE was observed only in patients having acid-and-bile reflux. On the univariate analysis, no infection of H. pylori, acid reflux, and bile reflux were determined to be the influencing factors to RE among the clinical factors including age, gender, route of esophageal reconstruction, H. pylori infection, and acid-and-bile reflux. In the subanalysis using the logistic model, there were significant correlations between bile reflux and RE irrespective of the presence of H. pylori infection (P = 0.016, P = 0.007). On the other hand, there was a significant correlation between acid reflux and RE only in patients without H. pylori infection (P = 0.039). In the early period after esophagogastrostomy, bile reflux could cause RE irrespective of H. pylori infection, while acid reflex could cause RE only in patients without H. pylori infection. There is a possibility that bile reflux plays an important role in the development of RE after esophagectomy.
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Affiliation(s)
- K Nishimura
- Department of Surgery Biostatistics Center, Kurume University, Kurume, Fukuoka, Japan
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Kamiya K, Aoyama Y, Shirafuji Y, Hamada T, Morizane S, Fujii K, Hisata K, Iwatsuki K. Detection of antibodies against the non-calcium-dependent epitopes of desmoglein 3 in pemphigus vulgaris and their pathogenic significance. Br J Dermatol 2012; 167:252-61. [PMID: 22404487 DOI: 10.1111/j.1365-2133.2012.10929.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Antidesmoglein (anti-Dsg) 3 serum antibody titres are usually correlated with the disease activity of pemphigus vulgaris (PV), but some patients retain high titres even in remission. OBJECTIVES The aim of our study was to determine whether anti-Dsg3 antibodies in PV sera recognized calcium (Ca(2+) )-dependent or non-Ca(2+) -dependent epitopes, and to evaluate their pathogenicity. METHODS Dsg3 baculoprotein-coated enzyme-linked immunosorbent assay (ELISA) plates were treated with 0.5 mmol L(-1) ethylenediaminetetraacetic acid (EDTA). The binding ability of anti-Dsg3 monoclonal antibodies (mAbs) was analysed. Eight of the 83 patients with PV who were screened had elevated Dsg3 ELISA index values > 00 in remission. The binding ability of these PV sera was analysed. We evaluated the pathogenicity of anti-Dsg3 serum antibodies against the non-Ca(2+) -dependent epitopes using a dissociation assay. RESULTS The reactivity of pathogenic anti-Dsg3 mAbs against the Ca(2+) -dependent epitopes diminished markedly in the EDTA-treated ELISA, whereas no such reduction was observed in mAbs against the non-Ca(2+) -dependent epitopes. The sera of all the patients contained antibodies against both Ca(2+) -dependent and non-Ca(2+) -dependent epitopes. In six out of the eight patients, the ratio of antibodies against Ca(2+) -dependent to non-Ca(2+) -dependent epitopes decreased in remission. EDTA-treated Dsg3 baculoproteins adsorbed anti-Dsg3 serum antibodies against the non-Ca(2+) -dependent epitopes, but the remnant PV antibodies retained the ability to induce acantholysis in the dissociation assay. CONCLUSIONS We have established an assay to measure indirectly the titres of anti-Dsg3 serum antibodies against the Ca(2+) -dependent epitopes, based on the differences between EDTA-untreated and EDTA-treated ELISA index values, as a routine laboratory test to reflect the pathogenic anti-Dsg3 serum antibody titres more accurately.
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Affiliation(s)
- K Kamiya
- Department of Dermatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama City, Okayama 700-8558, Japan
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Koseki T, Mouri A, Mamiya T, Aoyama Y, Toriumi K, Suzuki S, Nakajima A, Yamada T, Nagai T, Nabeshima T. [JSNP Excellent Presentation Award for AsCNP 2011: enriched environment in adolescence prevents abnormal behavior associated with histone deacetylation in phencyclidine-treated mice]. Nihon Shinkei Seishin Yakurigaku Zasshi 2012; 32:87-89. [PMID: 22708261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
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31
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Tsubuku T, Fujita H, Tanaka T, Matono S, Nishimura K, Murata K, Sueyoshi S, Shirouzu K, Aoyama Y, Yanagawa T. What influences the acidity in the gastric conduit in patients who underwent cervical esophagogastrostomy for cancer? Dis Esophagus 2011; 24:575-82. [PMID: 21489042 DOI: 10.1111/j.1442-2050.2011.01193.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The aim of this study was to determine the factors influencing acidity in the gastric conduit after esophagectomy for cancer. Acidity and bile reflux in the stomach and in the gastric conduit were examined by 24-h pH monitoring and bilimetry in 40 patients who underwent transthoracic subtotal esophagectomy followed by esophageal reconstruction using a gastric conduit, which was pulled up to the neck through a posterior mediastinal route in 17 patients, through a retrosternal route in 10 patients, and through a subcutaneous route in 13 patients. They were examined at 1 week before surgery, at 1 month after surgery, and at 1 year after surgery. Helicobacter pylori infection was examined pathologically and using the (13) C-urea breath test. The factors influencing acidity of the gastric conduit were analyzed using the stepwise regression model. Gastric acidity assessed by percentage (%) time of pH < 4 was reduced after surgery and was significantly less in patients with H. pylori infection compared with those without H. pylori infection throughout the period from 1 week before surgery to 1 year after surgery. Duodenogastric reflux (DGR) assessed by % time absorbance > 0.14 into the lower portion of the gastric conduit was significantly increased after surgery throughout the period from 1 month after surgery to 1 year after surgery. Multivariate analysis showed that the acidity in the gastric conduit was influenced by H. pylori infection and DGR at 1 month after surgery, and by H. pylori infection and the route for esophageal reconstruction at 1 year after surgery. Acidity in the gastric conduit was significantly decreased after surgery. Acidity in the gastric conduit for esophageal substitutes is influenced by H. pylori infection and surgery. DGR influences the gastric acidity in the short-term after surgery, but not in the long-term after surgery.
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Affiliation(s)
- T Tsubuku
- Department of Surgery, Kurume University School of Medicine Biostatistics Center, Kurume University, Kurume, Japan.
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Sadakane A, Aoyama Y, Yamada M, Mizusawa H, Nakamura Y. P2-540 Epidemiologic features of prion diseases in Japanese elderly: results from the surveillance. Br J Soc Med 2011. [DOI: 10.1136/jech.2011.142976m.67] [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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Enkh-Oyun T, Davaalkham D, Chihara I, Uehara R, Kotani K, Sadakane A, Aoyama Y, Tsuboi S, Ae R, Takamura H, Nakamura Y. SP1-10 Alcohol consumption and smoking of Mongolian adults. Br J Soc Med 2011. [DOI: 10.1136/jech.2011.142976m.87] [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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Chihara I, Kudo Y, Tsuboi S, Sadakane A, Aoyama Y, Ae R, Enkh-Oyun T, Kotani K, Uehara R, Nakamura Y. SP3-30 Characteristics of attempted suicide patients presenting to secondary and tertiary emergency rooms, Tochigi prefecture, Japan. Br J Soc Med 2011. [DOI: 10.1136/jech.2011.142976o.30] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Takamura H, Haruyama S, Uehara R, Esumi S, Aoyama Y, Tsogzolbaatar EO, Sadakane A, Chihara I, Tsuboi S, Nakamura Y. P2-481 Achievements of the activities to create healthy lifestyles by healthcare professionals and adolescent peer leaders (Part 1). Br J Soc Med 2011. [DOI: 10.1136/jech.2011.142976m.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: 11/03/2022]
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Umemoto H, Akiyama M, Yanagi T, Sakai K, Aoyama Y, Oizumi A, Suga Y, Kitagawa Y, Shimizu H. New insight into genotype/phenotype correlations in ABCA12 mutations in harlequin ichthyosis. J Dermatol Sci 2011; 61:136-9. [DOI: 10.1016/j.jdermsci.2010.11.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2010] [Accepted: 11/24/2010] [Indexed: 11/25/2022]
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Habara K, Shimozato T, Obata Y, Ryota K, Yasui K, Aoyama Y, Hayashi N. Dosimetric Perturbation Due to Scattered Ray from a Gold Marker for Tumor Tracking In Radiotherapy Planning. Int J Radiat Oncol Biol Phys 2010. [DOI: 10.1016/j.ijrobp.2010.07.1907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Fukuda M, Suda M, Takei Y, Aoyama Y, Sato T, Sakurai N, Narita K, Kameyama M, Uehara T, Mikuni M. S24-4 Near-infrared spectroscopy in psychiatry. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)60157-5] [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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Fukuda M, Suda M, Takei Y, Aoyama Y, Sato T, Sakurai N, Narita K, Kameyama M, Uehara T, Mikuni M. S52-1 Approval of NIRS as the advanced medical technology in psychiatry. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)60311-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Aoyama Y, Nagai M, Kitajima Y. Binding of pemphigus vulgaris IgG to antigens in desmosome core domains excludes immune complexes rather than directly splitting desmosomes. Br J Dermatol 2010; 162:1049-55. [DOI: 10.1111/j.1365-2133.2010.09672.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Suda M, Kubota F, Aihara Y, Hiraoka T, Aoyama Y, Hattori S, Fukuda M, Mikuni M. A case of lithium intoxication with periodic sharp waves. Pharmacopsychiatry 2009; 42:122-3. [PMID: 19452381 DOI: 10.1055/s-0028-1112131] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Oshima T, Aoyama Y, Shimozato T, Sawaki M, Imai T, Ito Y, Obata Y, Tabushi K. An experimental attenuation plate to improve the dose distribution in intraoperative electron beam radiotherapy for breast cancer. Phys Med Biol 2009; 54:3491-500. [DOI: 10.1088/0031-9155/54/11/014] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Iwata H, Hiramitsu Y, Aoyama Y, Kitajima Y. A case of anti-p200 pemphigoid: evidence for a different pathway in neutrophil recruitment compared with bullous pemphigoid. Br J Dermatol 2009; 160:462-4. [DOI: 10.1111/j.1365-2133.2008.08965.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Iwata H, Aoyama Y, Kamiya H, Ichiki Y, Kitajima Y. Spindle cell squamous cell carcinoma showing epithelial-mesenchymal transition. J Eur Acad Dermatol Venereol 2008; 23:214-5. [PMID: 18482319 DOI: 10.1111/j.1468-3083.2008.02797.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Kokame K, Aoyama Y, Matsumoto M, Fujimura Y, Miyata T. Inherited and de novo mutations of ADAMTS13 in a patient with Upshaw-Schulman syndrome. J Thromb Haemost 2008; 6:213-5. [PMID: 17988227 DOI: 10.1111/j.1538-7836.2007.02828.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Takenaka K, Koshino-Kimura Y, Aoyama Y, Sera T. Inhibition of tomato yellow leaf curl virus replication by artificial zinc-finger proteins. ACTA ACUST UNITED AC 2007:429-30. [DOI: 10.1093/nass/nrm215] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [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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Mori N, Fujita H, Sueyoshi S, Aoyama Y, Yanagawa T, Shirouzu K. Helicobacter pylori infection influences the acidity in the gastric tube as an esophageal substitute after esophagectomy. Dis Esophagus 2007; 20:333-40. [PMID: 17617883 DOI: 10.1111/j.1442-2050.2007.00718.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
It is commonly considered that acidity in a gastric tube used as an esophageal substitute after esophagectomy decreases due to truncal vagotomy. However, there have been few, if any, studies on the factors influencing the acidity in the gastric tube. It is well known that Helicobacter pylori (H. pylori) plays an important role in acid secretion of the stomach. The aim of this study was to investigate whether or not H. pylori infection also influenced the acidity in the gastric tube as an esophageal substitute. We investigated the changes in the levels of gastric acidity and the status of H. pylori infection from the preoperative period to 1 year after surgery. In 65 Japanese patients who underwent resection of esophageal cancer followed by reconstruction using a gastric tube, 24-h gastric pH monitoring and examination of H. pylori infection using the 13C-urea breath test and biopsy specimen obtained from the gastric mucosa under upper gastrointestinal endoscopy were performed pre- and postoperatively. Twenty-seven among the 65 patients underwent the same examinations at 1 year after surgery. The levels of postoperative gastric acidity and at 1 year after surgery were significantly lower than that of preoperative gastric acidity (P = 0.031, P = 0.001, respectively). There was no difference in the levels of gastric acidity between 1.5 months and 1 year after surgery (P = 0.282). The levels of gastric acidity in the stomach and in the gastric tube were significantly influenced by H. pylori infection, while age, gender, and past history of peptic ulcer showed no influence. The level of gastric acidity in patients who had H. pylori infection pre- and postoperatively were significantly lower than that in patients who had no H. pylori infection pre- and postoperatively (P < 0.0001). H. pylori infection was indicated to be an important factor influencing the levels of gastric acidity in the reconstructed esophagus as well as in the stomach before surgery.
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Affiliation(s)
- N Mori
- Department of Surgery, Kurume University School of Medicine, Kurume, Fukuoka 830-0011, Japan.
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Amagai M, Ahmed AR, Kitajima Y, Bystryn JC, Milner Y, Gniadecki R, Hertl M, Pincelli C, Kurzen H, Fridkis-Hareli M, Aoyama Y, Frusić-Zlotkin M, Müller E, David M, Mimouni D, Vind-Kezunovic D, Michel B, Mahoney M, Grando S. Are desmoglein autoantibodies essential for the immunopathogenesis of pemphigus vulgaris, or just ‘witnesses of disease'? Exp Dermatol 2006; 15:815-31. [PMID: 16984264 DOI: 10.1111/j.1600-0625.2006.00499_1.x] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Pemphigus vulgaris (PV) is fascinating to dermatologists, epithelial biologists and immunologists alike, as its pathogenesis has been clarified to a much greater extent than that of most other organ-specific autoimmune diseases, and as it has provided abundant novel insights into desmoglein biology and pathology along the way. Historically, the most influential PV pathogenesis concept is that of Stanley and Amagai. This concept holds that autoantibodies against desmogleins are both essential and sufficient for epidermal blister formation (acantholysis) by impeding the normal functioning of these major adhesion proteins. However, as with most good theories, this landmark concept has left a number of intriguing and important questions open (or at least has not managed to answer these to everyone's satisfaction). Moreover, selected dissenting voices in the literature have increasingly called attention to what may or may not be construed as inconsistencies in this dominant PV pathogenesis paradigm of the recent past. The present debate feature therefore bravely rises to the challenge of re-examining the entire currently available evidence, as rationally and as undogmatically as possible, by provocatively asking a carefully selected congregation of experts (who have never before jointly published on this controversial topic!) to discuss how essential anti-desmoglein autoantibodies really are in the immunopathogenesis of PV. Not surprisingly, some of our expert "witnesses" in this animated debate propose diametrically opposed answers to this question. While doing so, incisive additional questions are raised that relate to the central one posed, and our attention is called to facts that may deserve more careful consideration than they have received so far. Together with the intriguing (often still very speculative) complementary or alternative pathogenesis scenarios proposed in the following pages, this offers welcome "food for thought" as well as very specific suggestions for important future research directions--within and beyond the camp of PV aficionados. The editors trust that this attempt at a rational public debate of the full evidence that is currently at hand will constructively contribute to further dissecting the exciting--and clinically very relevant!--immunopathogenesis of PV in all its complexity.
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Paus R, Amagai M, Ahmed AR, Kitajima Y, Bystryn JC, Milner Y, Gniadecki R, Hertl M, Pincelli C, Fridkis-Hareli M, Aoyama Y, Frušić-Zlotkin M, Müller E, David M, Mimouni D, Vind-Kezunovic D, Michel B, Mahoney M, Grando S. Are desmoglein autoantibodies essential for the immunopathogenesis of pemphigus vulgaris, or just ‘witnesses of disease'? Exp Dermatol 2006. [DOI: 10.1111/j.1600-0625.2006.00499.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [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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Nagata K, Hasegawa T, Okano K, Kiyama K, Aoyama Y, Hirokado Y, Otsuki C. Development and evaluation of Balneo–Morita therapy for the treatment of fibromyalgia syndrome. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.ics.2005.12.057] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [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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