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糖尿病视网膜病变(DR)病理生理过程复杂,机制主要涉及有炎症、羰基化终产物、氧化应激和蛋白激酶C等通路.这些机制导致视网膜内各种反应呈瀑布样失控发生,最终引起视网膜病变.过氧化物酶体增生物激活受体γ(PPAR-γ)作为代谢稳态与脂肪细胞分化重要的调节分子之一,其单核苷酸多态性,分子结构等都对其功能与作用方式产生重要影响,已被证明可以抑制炎症因子、抗新生血管及纤维化、抗氧化、胰岛素增敏、抗凋亡,延迟甚至预防DR发生及发展.本文就PPAR-γ的结构和功能与其在DR中的作用及机制研究进展做一综述.“,”Peroxisome proliferator-activated receptor gamma (PPAR-γ),a member of the nuclear receptor superfamily,plays a great role in delaying or even preventing the occurrence and/or development of diabetic retinopathy (DR),a complicated out-of-control waterfall-like pathophysiological processes.DR is characterized by pathways,such as inflammatory reactions,the generation of advanced glycation end products,oxidative stress,protein kinase C and so on.As one of the most important metabolic homeostasis and adipocyte differentiation regulator,the single nucleotide polymorphism and molecular structure of PPAR-γ have been proven to impact on anti-inflammation,anti-neovascularization and fibration,antioxidation,insulin sensitizer and anti-apoptosis in DR.This review provided a summary of the function and mechanism researches on PPAR-γand offered new ideas of prevention and therapy in DR.