miR-24 Reduces Serum Lipid Levels and Inhibits Brain Tissue Cells Apoptosis of Rats with Cerebral Infarction

Turkish Neurosurgery
Qiyong JiangZhigang Wang

Abstract

To study miR-24 effects on cerebral infarction in rats. A rat middle cerebral artery occlusion model (MCAO) was constructed. Intracerebroventricular stereotactic injection of miR-24 agomir/antagomir was performed in the rat MCAO model. According to different experiences, rats were divided into normal, sham, MCAO, miR-24 agomir and miR-24 antagomir groups. Serum TCH, HDL and TG levels were detected. Comparingthe normal and sham groups, we observed decreased relative miR-24 expression (p < 0.05) and increased cerebral infarction area percentage, apoptotic cells and relative caspase-3 protein expression (p < 0.05) in theMCAO, miR-24 agomirand miR-24 antagomir groups. TC, TG and HDL-C levels of the MCAO and miR-24 antagomir groups were higher than those of normal and sham groups (p < 0.05).Compared with the MCAO group, increased relative miR-24 expression (p < 0.05) and decreased TC, TG and HDL-C levels,cerebral infarction area percentage, number of apoptotic cells and caspase-3 expression (p < 0.05) were found in themiR-24 agomir group, contrasting with theobservations from the miR-24 antagomir group. miR-24 reduced serum TCH, HDL and TG levels and inhibited brain tissue cell apoptosis in rats with cerebral infarction.

Citations

Jun 18, 2021·International Journal of General Medicine·Shun WangChuanxin Wang

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Apoptosis

Apoptosis is a specific process that leads to programmed cell death through the activation of an evolutionary conserved intracellular pathway leading to pathognomic cellular changes distinct from cellular necrosis