ABSTRACT
Objective To observe the effect of Tianteng Jiangya decoction on vascular endothelial function in essential hypertension.Methods 70 patients with essential hypertension were enrolled in this study,they were divided into study group(35 cases)and control group(35 cases)according to the random number table.The control group was treated with levamlodipine for 8 weeks,the study group was treated with Tianteng Jiangya decoction on the basis of the control group for 8 weeks.Then,the DBP and SBP were observed before and after treatment.The ET-1 and nitric oxide(NO)were measured by radioimmunoassay and spectrophotometry.The curative effect and symptom of both two groups were evaluated.Results The levels of DBP and SBP in the study group and the control group were(80±4)mmHg and(88±5)mmHg,(118±13)mmHg and(131±15)mmHg,respectively,which were significantly lower than those before treatment(t=7.263,4.488,9.227,4.422,all P0.05).The total effective rates of dizziness,headache,five upset hot,forgetfulness in the study group and the control group were 89.47% and 64.71%,90.00% and 63.16%,88.89% and 50.00%,82.35% and 47.37%,respectively,the differences were statistically significant(x2=6.422,6.585,6.247,6.456,all P<0.05).The total effective rate of the study group was 94.29%,which was significantly higher than 71.43% of the control group,the difference was statistically significant(x2=9.622,P<0.01).Conclusion Tianteng Jiangya decoction can effectively control the blood pressure of patients with essential hypertension,improve the efficacy of traditional Chinese medicine and vascular endothelial function,has obvious advantages,it is worthy of clinical use.
ABSTRACT
AIM:To investigate the influence and mechanisms of human pancreatic cancer tumor microenvironments on T-cell immunoglobulin mucin-3 (TIM-3) expression and function of dendritic cells (DCs).METHODS:Tumor-infiltrating dendritic cells (TIDC) and para-carcinoma tissue DCs were isolated by Ficoll-Hypaque density centrifugation from trypsinized pancreatic carcinoma tissues, and the peripheral blood mononuclear cells were isolated from pancre-atic cancer patients or healthy people.The expression of TIM-3 on DCs was detected by flow cytometry.DCs isolated from healthy people peripheral blood mononuclear cells were induced by rhGM-CSF and IL-4.The expression of TIM-3 in the DCs treated with the culture supernatants of Capan-2, SW1990 and Panc-1 pancreatic cancer cells or human skin fibroblast (Hs27) cells for 48 h, and in the DCs treated with supernatants of Capan-2 cells, anti-VEGF-R2, anti-IL-10 and EP2 re-ceptor blocking peptide were evaluated by flow cytometry.The releases of IFN-βand IL-12 in the culture supernatants of DCs pretreated with monoclonal antibody ( mAb) to TIM-3 or DNase+RNase, followed by stimulation with apoptotic Ca-pan-2 cells, were detected by ELISA.RESULTS:DCs in tumor microenvironments had higher expression of TIM-3 than the DCs from para-carcinoma tissues and pancreatic cancer patient or healthy people peripheral blood ( P<0.01 ) .TIM-3 expression in the DCs treated with the culture supernatants of Capan-2, SW1990 and Panc-1 pancreatic cancer cells for 48 h was much higher than that in Hs27 cells (P<0.05).Treatment with a combination of anti-VEGF-R2, anti-IL-10 and EP2 receptor blocking peptide largely diminished the upregulation of TIM-3 on the DCs mediated by Capan-2 cell superna-tants (P<0.05).The concentrations of IFN-βand IL-12 in the DCs with high expression level of TIM-3 were lower than those in the DCs with low TIM-3 expression level.Treatment with mAb to TIM-3 resulted in much more IFN-βand IL-12 releases (P<0.01), but DNase+RNase made this effect disappear.CONCLUSION:TIM-3 serves as a negative regula-tor of DCs innate immune responses in the pancreatic cancer microenvironments.The secretion of soluble factors to tumor microenvironment by pancreatic cancer cells, including IL-10, VEGF and PGE2 , may contribute to the regulation of TIM-3 expression.