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Cyclo(His-Pro) augments the insulin response to oral glucose in rats.

机译:Cyclo(His-Pro)增强大鼠对口服葡萄糖的胰岛素反应。

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摘要

Cyclo(His-Pro) (CHP) is a gut-brain peptide found in rat and man. Since plasma levels of CHP are altered by oral glucose ingestion, we wondered whether exogenous CHP might alter the insulin response to oral glucose ingestion. To this end, rats were given 3g/kg oral glucose load with either saline or increasing doses of CHP and plasma levels of insulin, C-peptide and glucose were measured. We found mean insulin but not C-peptide excursions and area under the insulin but not C-peptide response curves (AUC) were significantly higher in the CHP groups than controls despite similar glucose responses. In summary, these data show that in rats receiving oral glucose, CHP causes higher insulin excursions without any change in C-peptide suggesting that CHP may decrease hepatic insulin clearance.
机译:Cyclo(His-Pro)(CHP)是在大鼠和人类中发现的肠脑肽。由于血浆CHP会因口服葡萄糖摄入而改变,因此我们想知道外源CHP是否会改变胰岛素对口服葡萄糖摄入的反应。为此,给大鼠口服3g / kg的口服葡萄糖负荷,加生理盐水或增加剂量的CHP,并测量血浆胰岛素,C肽和葡萄糖水平。我们发现,尽管有相似的葡萄糖反应,CHP组中的平均胰岛素而非C肽漂移和胰岛素下方面积而不是C肽反应曲线(AUC)明显高于对照组。总之,这些数据表明,在接受口服葡萄糖的大鼠中,CHP引起较高的胰岛素偏移,而C肽没有任何变化,这表明CHP可能会降低肝脏胰岛素清除率。

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