Oxidative Stress in Pancreatic Beta Cell Regeneration.

Oxidative Stress in Pancreatic Beta Cell Regeneration.
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DOI:
10.1155/2017/1930261
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发表时间:
2017
影响因子:
--
通讯作者:
Wang H
Wang H
中科院分区:
生物学2区
文献类型:
--
作者:
Wang J;Wang H

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新生儿期胰腺β细胞的新生和增殖对于产生足够的胰腺β细胞群/储备至关重要,并对2型糖尿病(T2 D)的长期保护具有深远的影响。氧化应激在生理和病理生理条件下的β细胞新生、增殖和存活中起重要作用。胰腺β细胞对氧化应激极其敏感,这是由于活性氧(ROS)的内源性高产生和抗氧化酶的低表达。本文综述了氧化应激对β细胞新生和增殖的影响及其机制。此外,抗氧化剂补充剂对减少氧化应激和增加β细胞增殖的影响进行了讨论。探索抗氧化剂在胰岛β细胞再生过程中的作用和潜在的治疗效果将为保护和/或扩增胰岛β细胞群以治疗T2 D提供新的视角。
Pancreatic β cell neogenesis and proliferation during the neonatal period are critical for the generation of sufficient pancreatic β cell mass/reserve and have a profound impact on long-term protection against type 2 diabetes (T2D). Oxidative stress plays an important role in β cell neogenesis, proliferation, and survival under both physiological and pathophysiological conditions. Pancreatic β cells are extremely susceptible to oxidative stress due to a high endogenous production of reactive oxygen species (ROS) and a low expression of antioxidative enzymes. In this review, we summarize studies describing the critical roles and the mechanisms of how oxidative stress impacts β cell neogenesis and proliferation. In addition, the effects of antioxidant supplements on reduction of oxidative stress and increase of β cell proliferation are discussed. Exploring the roles and the potential therapeutic effects of antioxidants in the process of β cell regeneration would provide novel perspectives to preserve and/or expand pancreatic β cell mass for the treatment of T2D.
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