Effects of Polyphenols on Insulin Resistance.

Effects of Polyphenols on Insulin Resistance.
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多酚类物质对胰岛素抵抗的影响。

DOI:
10.3390/nu12103135
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发表时间:
2020-10-14
期刊:
影响因子:
5.9
通讯作者:
Sheedy K
Sheedy K
中科院分区:
医学2区
文献类型:
--
作者:
Williamson G;Sheedy K

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当负责从血液中清除葡萄糖的组织,如脂肪和肌肉,对适当的信号没有适当的反应时,胰岛素抵抗(IR)是明显的。IR是基于空腹血糖和胰岛素估计的,但一些措施也包括口服葡萄糖挑战。某些(多酚),作为补充剂或在食物中,可以通过几种机制改善胰岛素抵抗,包括降低餐后葡萄糖,调节葡萄糖转运,影响胰岛素信号传导途径,并通过保护胰岛素分泌胰腺β细胞免受损伤。如对志愿者的干预研究所示,改善胰岛素抵抗最有希望的候选人是(-)-表儿茶素,含(-)-表儿茶素的食物和花青素。槲皮素和酚酸也可能具有活性,但来自干预研究的数据是混合的。需要对轻度胰岛素抵抗参与者进行长期的,特别是剂量反应研究,以确定(多)酚和富含(多)酚的食物在多大程度上可以改善受损群体的胰岛素抵抗。
Insulin resistance (IR) is apparent when tissues responsible for clearing glucose from the blood, such as adipose and muscle, do not respond properly to appropriate signals. IR is estimated based on fasting blood glucose and insulin, but some measures also incorporate an oral glucose challenge. Certain (poly)phenols, as supplements or in foods, can improve insulin resistance by several mechanisms including lowering postprandial glucose, modulating glucose transport, affecting insulin signalling pathways, and by protecting against damage to insulin-secreting pancreatic β-cells. As shown by intervention studies on volunteers, the most promising candidates for improving insulin resistance are (−)-epicatechin, (−)-epicatechin-containing foods and anthocyanins. It is possible that quercetin and phenolic acids may also be active, but data from intervention studies are mixed. Longer term and especially dose-response studies on mildly insulin resistant participants are required to establish the extent to which (poly)phenols and (poly)phenol-rich foods may improve insulin resistance in compromised groups.
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