microRNA-374b-5p对糖尿病增殖性视网膜病变的作用

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Abstract Objective To explore the effect of microRNA-374b-5p on proliferative diabetic retinopathy. Methods Based on retrospective study, the peripheral blood of patients with diabetic non-proliferative (NPDR, n=30) and proliferative (PDR, n=32) retinopathy was collected, and the contents of microRNA-374b-5p and VEGF were determined, correlation analysis was performed at the same time, miR-374b-5p was introduced into endothelial cells to detect the expression of VEGF and the changes of endothelial cells' angiogenesis ability. Results Compared with NPDR group (7.993±6.194), the expression of serum miR-374b-5p in PDR group (4.308±3.313) decreased significantly (P<0.05). Compared with the content of VEGF in NPDR group [ (35.50±21.49)pg/ml], the content of VEGF in PDR group [((74.64±26.57)pg /ml] was significantly higher, and the difference was statistically significant (P<0.05). There was a negative correlation between miR-374b-5p and VEGF (R²=0.088, P=0.019). The level of miR-374b-5p in serum of PDR patients decreased and VEGF increased, which was negatively correlated with each other, while miR-374b-5p could inhibit the expression of VEGF mRNA and protein, and inhibit the angiogenesis ability of endothelial cells. Conclusions The decline of miR-374b-5 in the progress of PDR leads to a decline in its ability to resist the increase of VEGF expression, and induces an increase in endothelial cell angiogenesis, thereby promoting the occurrence and development of PDR.

Key words： diabetic proliferative retinopathy microRNA vascular endothelial growth factor endothelial cells angiogenesis

Received: 21 April 2022

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	YANG Rong
	ZHU Xu
	DUAN Zhijuan
	YANG Fang

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YANG Rong,ZHU Xu,DUAN Zhijuan等. Effect of microRNA-374b-5p on proliferative diabetic retinopathy[J]. Med. J. Chin. Peop. Armed Poli. Forc., 2023, 34(3): 225-228.

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http://journal08.magtechjournal.com/Jwk_wjyx/EN/ OR http://journal08.magtechjournal.com/Jwk_wjyx/EN/Y2023/V34/I3/225

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