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        <datestamp>2024-07-01T05:41:19Z</datestamp>
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          <dc:title>2型糖尿病の膵β細胞不全におけるRAGE・糖脂肪毒性・レプチンの役割の解明</dc:title>
          <dc:title xml:lang="en">To unveil mechanisms triggering pancreatic beta cell dysfunction in type 2 diabetes possibly via RAGE, glucolipotoxicity and insufficient leptin signaling</dc:title>
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            <jpcoar:nameIdentifier nameIdentifierURI="https://kaken.nii.ac.jp/ja/search/?qm=00115198" nameIdentifierScheme="e-Rad">00115198</jpcoar:nameIdentifier>
            <jpcoar:creatorName>山本, 博</jpcoar:creatorName>
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          <datacite:description descriptionType="Abstract">2型糖尿病では膵ランゲルハンス島β細胞からのインスリン分泌が徐々に低下し膵β細胞疲弊が生じる。このメカニズムを解明するため、高血糖による糖毒性物質advanced glycation end-products (AGE)とその細胞膜受容体receptor for AGE (RAGE)に着目し、レプチンシグナル不全のdb/dbマウスを使って検討した。また、マウス膵β細胞由来MIN6細胞を用いて糖脂肪毒性の影響を調べた。レプチン受容体シグナルの遮断と、遊離脂肪酸の暴露によって膵β細胞膜上のRAGE発現誘導が生じ、さらにAGE刺激によって膵β細胞はアポトーシス、インスリン分泌不全に陥ると結論された。</datacite:description>
          <datacite:description descriptionType="Abstract">Glucolipotoxicity, which is exerted by free fatty acids (FFA) and prolonged hyperglycemia, is implicated in pancreatic β-cell failure in diabetes. We examined whether advanced glycation end-products (AGE) and RAGE contribute to β-cell failure in a type 2 diabetes mouse model. Pretreatment of FFA combined with a leptin antagonist induced RAGE expression, AGE-elicited apoptosis, and impaired glucose-stimulated insulin secretion by AGE in MIN6 cells. FFA elevation with concomitant AGE formation during prolonged hyperglycemia could cause β-cell damage through insufficient leptin action and subsequent RAGE induction in type 2 diabetes.</datacite:description>
          <datacite:description descriptionType="Other">研究課題/領域番号:25461335, 研究期間(年度):2013-04-01 – 2016-03-31</datacite:description>
          <datacite:description descriptionType="Other">出典：「2型糖尿病の膵β細胞不全におけるRAGE・糖脂肪毒性・レプチンの役割の解明」研究成果報告書　課題番号25461335
（KAKEN：科学研究費助成事業データベース（国立情報学研究所）） 
（https://kaken.nii.ac.jp/report/KAKENHI-PROJECT-25461335/25461335seika/）を加工して作成</datacite:description>
          <datacite:description descriptionType="Other">金沢大学医薬保健研究域医学系</datacite:description>
          <datacite:date dateType="Issued">2016-06-27</datacite:date>
          <dc:language>jpn</dc:language>
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          <jpcoar:identifier identifierType="DOI">https://doi.org/10.24517/00034444</jpcoar:identifier>
          <jpcoar:identifier identifierType="HDL">http://hdl.handle.net/2297/47349</jpcoar:identifier>
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          <jpcoar:sourceTitle>平成27(2015)年度 科学研究費補助金 基盤研究(C) 研究成果報告書</jpcoar:sourceTitle>
          <jpcoar:sourceTitle xml:lang="en">2015 Fiscal Year Final Research Report</jpcoar:sourceTitle>
          <jpcoar:volume>2013-04-01 – 2016-03-31</jpcoar:volume>
          <jpcoar:pageStart>6p.</jpcoar:pageStart>
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            <datacite:date dateType="Available">2017-10-05</datacite:date>
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