Analyzing the pharmacological substances and targets of Xuefu Zhuyu decoction in hypertensive vascular endothelial cells

Background:Xuefu Zhuyu decoction(XFZY)could significantly improve the function of hypertensive vascular endothelial cells,but the targets and mechanism are not clear.This study is to analyze the pharmacological substances and targets of Xuefu Zhuyu decoction in hypertensive vascular endothelial cells.Methods:This study used Xuefu Zhuyu decoction to intervene human umbilical vein endothelial cells incubated by hypertensive patients’serum,then detected the function of vascular endothelial cells.The aqueous extract of XFZY was analyzed and validated by liquid chromatography-mass spectrometry technology;Finally,macromolecular docking technology was used to analyze the potential active substances and targets of XFZY in the prevention and treatment of hypertension.Results:Compared with the model group,the XFZY group showed a significant increase in NO expression(P<0.01)and a significant decrease in ET-1 expression(P<0.001);and the expression of BIP,P-JNK,CHOP,and BAX in XFZY group cells was significantly decreased(P<0.001),while the expression of JNK and BCL2 was significantly increased(P<0.001).19 main compounds were identified in XFZY and there were 3 pairs of molecular complexes with high affinity for markers of the endoplasmic reticulum stress,including BIP-Hesperidin complex,BIP-HSYA complex and JNK-Naringin complex.Conclusion:This study analyzed the potential pharmacodynamic substance and targets of Xuefu Zhuyu decoction in improving the function of hypertensive vascular endothelial cells,which could provide a scientific basis for the future molecular mechanism of XFZY in treating hypertension.

Candidate genes associated with cold-coagulation or heataccumulation blood stasis syndrome in hypertension

Background:The goal of this study was to predict candidate genes by analyzing the differentially expressed genes of cold-coagulation or heat-accumulation blood stasis syndrome in hypertension by transcriptomes sequencing in human vascular endothelial cells models.Methods:Serum of patients with hypertension were collected to incubate with normal human umbilical vein endothelial cells to establish injured endothelial cell models of cold-coagulation blood stasis syndrome,heat-accumulation blood stasis syndrome and non-blood stasis syndrome.The differentially expressed genes of cold-coagulation blood stasis syndrome or heat-accumulation blood stasis syndrome were screened compared with non-blood stasis syndrome.Gene Ontology,pathway enrichment analyses and PPI network analyses were conducted to get the key genes of cold-coagulation blood stasis syndrome or heataccumulation blood stasis syndrome.Results:The results showed that compared with non-blood stasis syndrome,there were 368 differentially expressed genes in cold-coagulation blood stasis syndrome(275 up-regulated,93 down-regulated),and 271 differentially expressed genes in heat-accumulation blood stasis syndrome(202 upregulated,69 down-regulated).According to the bioinformatics analyses,5 differentially expressed genes were selected as the candidate genes for cold-coagulation blood stasis syndrome(TRIB3,HERPUD1,ERN1,PMAIP1 and XBP1)and 10 differentially expressed genes were selected as the candidate genes for heat-accumulation blood stasis syndrome(PTGS2,SLC3A2,VEGFA,SLC7A5,SLC1A4,SLC7A1,SLC38A1,SLC43A2,HMOX1 and ICAM1).Conclusion:In this study,we predicted the potential key genes associated with cold-coagulation blood stasis syndrome or heat-accumulation blood stasis syndrome in hypertension by transcriptomes sequencing and bioinformatics analyses.It provide an informative basis for studying the role of genes in blood stasis syndrome,and we hope it will be valuable to study blood stasis syndrome in future studies.

Thermoelectric transport properties and structure of Mg_2Si_(0.8)Sn_(0.2)prepared by ECAS under different current intensities

Thermoelectric materials Mg2Si0.8Sn0.2 were sintered under three different conditions including no electricity sintering(NCS), low electricity sintering(LCS),and high electricity sintering(HCS). Thermoelectric performance and microstructure of three group samples were measured and compared. The results indicate that the application of electric current during the sintering process changes the microstructure and significantly increases the density of samples, and increases the electric conductivity and the power factor. The electric current activated/assisted sintering is an effective way to obtain thermoelectric materials with excellent performance.