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JCEM:胆汁酸参与血糖控制

2013-07-15 desperado-c dxy

最近的证据提示胆汁酸(BAs)通过TGR5激活和随后肠肽释放,以及法尼脂X受体激活和继发成纤维细胞生长因子释放(FGFs),参与血糖控制。为了探讨十二指肠内输注鹅去氧胆酸(CDCA)是否可以刺激FGF和肠肽分泌,从而对血糖稳态产生积极的影响。来自瑞士巴塞尔大学医院的Christoph Beglinger教授及其团队进行了一项研究,该研究发现BAs在血糖控制中发挥作用。该研究结果在线发表在2013年

最近的证据提示胆汁酸(BAs)通过TGR5激活和随后肠肽释放,以及法尼脂X受体激活和继发成纤维细胞生长因子释放(FGFs),参与血糖控制。为了探讨十二指肠内输注鹅去氧胆酸(CDCA)是否可以刺激FGF和肠肽分泌,从而对血糖稳态产生积极的影响。来自瑞士巴塞尔大学医院的Christoph Beglinger教授及其团队进行了一项研究,该研究发现BAs在血糖控制中发挥作用。该研究结果在线发表在2013年6月20日的《临床内分泌代谢杂志》(The journal of clinical endocrinology & metabolism)上。

该研究是一项随机、双盲、安慰剂对照、交叉实验,包括12例接受生理盐水、CDCA(5或15mmol/l)和脂肪酸(油酸钠)(单独或与5mmol/l CDCA一起)十二指肠内输注的健康受试者。60分钟后进行口服葡萄糖耐量试验(OGTT)。测量血浆胰高血糖素样肽-1(GLP-1)、酪酪肽、胆囊收缩素(CCK)、总Bas、FGF19、FGF21、C肽、胰岛素、血糖和胰高血糖素。

该研究结果表明,在第一个60分钟内,高浓度CDCA诱导GLP-1和CCK分泌小胆有意义的增加(P=0.016和P=0.011),然而,对血浆C肽、胰岛素和血糖没有影响。15mmol/lCDCA组OGTT后观察到C肽和胰岛素释放减少(P=0.013和P=0.011)。输注CDCA后,血浆BA和FGF19水平显著增加(P=0.001和P<0.001)。

该研究发现,CDCA调节GLP-1和CCK分泌;作用很弱,而且没有影响血糖水平。OGTT后血浆BAs显著增加和胰岛素释放减少提示BAs在血糖控制中发挥作用,且独立于肠促胰岛素轴,并提示涉及法尼脂X受体激活通路。


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    2013-10-03 smallant2015
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    2014-01-24 achengzhao
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    2013-07-16 liufangivy

    嗯 不错 值得关注

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