title: Protective effect of Xin Mai Jia ultrafiltration extract on human umbilical vein endothelial cell injury induced by hydrogen peroxide and the effect on the NO-cGMP signaling pathway.
abstract: The aim of the present study was to evaluate the protective effect of the ultrafiltration extract of Xin Mai Jia (XMJ) on a human umbilical vein endothelial cell (HUVEC) injury model induced by hydrogen peroxide (H2O2), by providing experimental data to investigate the mechanism and efficacy underlying the therapeutic effects on atherosclerosis. HUVECs were first injured by H2O2and then varying final concentrations of the Chinese herb extract were added. Effects of the XMJ extract on morphology, activity, monolayer permeability, biochemical indicators, cytokines, endothelial nitric oxide synthase (eNOS) protein content and eNOS gene expression in the HUVECs were analyzed. H2O2significantly promoted HUVEC injury. The XMJ ultrafiltration extract significantly improved the morphological changes in the injured HUVECs. In addition, XMJ treatment increased cell activity and decreased monolayer permeability. The expression levels of intracellular adhesion molecule-1, vascular adhesion molecule-1, interleukin-1 and -6 and nuclear factor-κB decreased, while the expression levels of matrix metalloproteinase-2 and tissue inhibitor of metalloproteinase-2 increased with XMJ administration. Increased levels of nitric oxide (NO), eNOS protein and eNOS gene expression were also observed. Therefore, the XMJ ultrafiltration extract exhibits marked anti-inflammatory effects and antioxidant abilities. These properties significantly inhibited the H2O2-induced injury of HUVECs, which may be associated with the NO-cyclic guanosine monophosphate signaling pathway.
authors.affiliation: School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China.
authors.forename: Yaling
authors.initials: Y
authors.lastname: Yin
authors.affiliation: Department of Nephrology, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan 450052, P.R. China.
authors.forename: Jia
authors.initials: J
authors.lastname: Wan
authors.affiliation: College of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China.
authors.forename: Peng
authors.initials: P
authors.lastname: Li
authors.affiliation: College of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China.
authors.forename: Yanlong
authors.initials: Y
authors.lastname: Jia
authors.affiliation: Department of Inspection, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China.
authors.forename: Ruili
authors.initials: R
authors.lastname: Sun
authors.affiliation: College of Pharmacy, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China.
authors.forename: Guopin
authors.initials: G
authors.lastname: Pan
authors.affiliation: Modern Technology Education Center, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China.
authors.forename: Guangrui
authors.initials: G
authors.lastname: Wan
keywords: Xin Mai Jia; atherosclerosis; human umbilical vein endothelial cell; hydrogen peroxide