Elevated Secretion of Aldosterone Increases TG/HDL-C Ratio and Potentiates The Ox-LDL-Induced Dysfunction of HUVEC

醛固酮分泌增多导致甘油三酸酯/高密度脂蛋白胆固醇比值升高,并增强氧化低密度脂蛋白诱导的HUVEC功能障碍

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作者:Qian Zhang, Yiwen Pan, Xiaochun Ma, Hao Yang, Jun Chang, Ling Hong, Huiwen Yan, S Hubing Zhang

Conclusion

Elevated Aldo with high Ox-LDL together may accelerate the dysfunction of HUVEC, and the Ox-LDL, especially for those patients with high Aldo should be well controlled. The assessment of the role of Aldo may provide a theoretical basis for the effective prevention and investigation of a new treatment of AS.

Methods

In this experimental study, clinical data were collected to investigate the Aldo role for the patients with primary aldosteronism or adrenal tumors. Cell viability assay, fluorescence-activated cell sorting (FACS) assay, apoptosis assay, cell aging analysis, and matrigel tube formation assay were performed to detect effects on human umbilical vein endothelial cells (HUVECs) treated with Aldo and/or Ox-LDL. Quantitative polymerase chain reaction (qPCR) and Western blot analysis were performed to figure out critical genes in the process of endothelial cells dysfunction induced by Aldo and/or Ox-LDL.

Objective

Atherosclerosis (AS) is one of the most common causes of human death and disability. This study is designed to investigate the roles of aldosterone (Aldo) and oxidized low-density lipoprotein (Ox-LDL) in this disease by clinical data and cell model. Materials and

Results

We found that the Aldo level had a positive correlation with the TG/HDL-C ratio. Endothelial cell growth, angiogenesis, senescence, and apoptosis were significantly affected, and eNOS/Sirt1, the value of Bcl-2/Bax and Angiopoietin1/2 were significantly affected when cells were co-treated by Aldo and Ox-LDL.

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