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Hyperbilirubinemia Reduces the Streptozotocin-Induced Pancreatic Damage through Attenuating the Oxidative Stress in the Gunn Rat
DC Field | Value | Language |
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dc.contributor.author | Fu, Yan Yan | - |
dc.contributor.author | Kang, Kyung Ja | - |
dc.contributor.author | Ahn, Jung Myung | - |
dc.contributor.author | Kim, Hae-Ryoung | - |
dc.contributor.author | Chae, Dong-Wan | - |
dc.contributor.author | Chin, Ho Jun | - |
dc.contributor.author | Kim, Suhnggwon | - |
dc.contributor.author | Na, Ki Young | - |
dc.date.accessioned | 2012-06-27T07:36:26Z | - |
dc.date.available | 2012-06-27T07:36:26Z | - |
dc.date.issued | 2010-12 | - |
dc.identifier.citation | TOHOKU JOURNAL OF EXPERIMENTAL MEDICINE; Vol.222 4; 265-273 | ko_KR |
dc.identifier.issn | 0040-8727 | - |
dc.identifier.uri | https://hdl.handle.net/10371/77634 | - |
dc.description.abstract | Oxidative stress is an important pathogenic factor in diabetes. Bilirubin may serve a cytoprotective function as an anti-oxidant. The Gunn rat lacks the enzyme uridine-diphosphate glucuronosyltransferase that is responsible for conjugation of bilirubin, exhibiting elevation of plasma bilirubin. We examined the effect of hyperbilirubinemia on the pancreatic damage caused by streptozotocin (STZ) in the Gunn rat. Male Wistar rats and male Gunn rats were treated with STZ (WS and GS groups, respectively) or vehicle (WC and GC groups, respectively). All 5 rats in the WS group developed diabetes, defined as fasting blood glucose 300 mg/dL or more, at 3 days, whereas only 2 of the 5 GS rats became diabetic at 7 days after STZ injection. Without insulin supplement at 7 days after STZ injection, the WS group displayed higher levels of fasting blood glucose (510.3 +/- 50.3 vs. 236.4 +/- 42.5 mg/dL, p = 0.003) and HbA1c (5.0 +/- 0.1 vs. 3.9 +/- 0.1, p = 0.001), compared to those of GS group. In Wistar rats, STZ induced apoptosis of the pancreatic islet cells, accompanied with activation of NADPH oxidase and increased production of reactive oxygen species and nitric oxide, but not in Gunn rats. Moreover, in a rat insulinoma cell line (RIN-m5F), pre-treatment with bilirubin (0.1 mg/dL) decreased cell death and apoptosis caused by STZ, and also reduced H(2)O(2) production. Considering the protective effect of hyperbilirubinemia against STZ-induced injury, we postulate that bilirubin could be a potential therapeutic modality for oxidative stress of pancreas islets. | ko_KR |
dc.language.iso | en | ko_KR |
dc.publisher | TOHOKU UNIV MEDICAL PRESS | ko_KR |
dc.subject | bilirubin | ko_KR |
dc.subject | streptozotocin | ko_KR |
dc.subject | NADPH oxidase | ko_KR |
dc.subject | diabetes | ko_KR |
dc.subject | reactive oxygen species | ko_KR |
dc.title | Hyperbilirubinemia Reduces the Streptozotocin-Induced Pancreatic Damage through Attenuating the Oxidative Stress in the Gunn Rat | ko_KR |
dc.type | Article | ko_KR |
dc.contributor.AlternativeAuthor | 강경자 | - |
dc.contributor.AlternativeAuthor | 안정명 | - |
dc.contributor.AlternativeAuthor | 김해령 | - |
dc.contributor.AlternativeAuthor | 나기영 | - |
dc.contributor.AlternativeAuthor | 채동완 | - |
dc.contributor.AlternativeAuthor | 김성원 | - |
dc.contributor.AlternativeAuthor | 진호준 | - |
dc.identifier.doi | 10.1620/tjem.222.265 | - |
dc.citation.journaltitle | TOHOKU JOURNAL OF EXPERIMENTAL MEDICINE | - |
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dc.description.tc | 0 | - |
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