Effect of serum from overfatigue rats on JNK/c-Jun/HO-1 pathway in human umbilical vein endothelial cells and the intervening effect of Tongxinluo (通心络) superfine powder

Objective:To cultivate human umbilical vein endothelial cells (HUVECs) in the serum of overfatigue rats with the intervention of Tongxinluo (通心络) superfine powder (TXLSP).By examining the variation of the activity of JNK/c-Jun/HO-1 pathway,the possible mechanisms of vascular endothelial dysfunction under overfatigue conditions and the intervening effect of TXLSP were explored.Methods:The HUVECs were randomly divided into the normal control group,the model group,the SP600125 (a specific antagonist of JNK)...     

Effects of Xuezhikang (血脂康) and pravastatin on circulating endothelial progenitor cells in patients with essential hypertension

Objective:To investigate the impacts of Xuezhikang(血脂康,XZK)or pravastatin combined with antihypertensive drugs on circulating endothelial progenitor cells(CEPCs)in essential hypertensive (EH)patients.Methods:Eighty-eight EH patients were enrolled into the study and randomly assigned to the antihypertensive drug treatment group(ATH group,29 cases),the pravastatin treatment group(PRA group,29 cases)and the Xuezhikang treatment group(XZK group,30 cases).Patients in the 3 groups were treated with routine ant...     

Effect of chinese herbal medicine for calming Gan (肝) and suppressing hyperactive yang on arterial elasticity function and circadian rhythm of blood pressure in patients with essential hypertension

Objective:To observe the effect of Chinese herbal medicine for calming Gan(肝) and suppressing hyperactive yang(平肝潜阳,CGSHY) on arterial elasticity function and the circadian rhythm of blood pressure in patients with essential hypertension(EH).Methods:Adopting a parallel,randomized design,sixty-four patients with EH of stagesⅠandⅡwere randomly divided into two groups according to a random number table,with 32 in each group.The patients in the treatment group were treated with CGSHY and those in the control group were treated with Enalapril.All patients were given 24-h ambulatory blood pressure monitoring(ABPM) before and after a 12-week treatment.Trough/peak(T/P) ratios of systolic and diastolic blood pressure(SBP & DBP) of each group were calculated.The circadian rhythm of their blood pressure was observed at the same time. The changes in elasticity of the carotid artery in the patients,including stiffness parameter(β),pressure-strain elastic modulus(Ep),arterial compliance(AC),augmentation index(Al),and pulse wave velocity(PVWβ) were determined by the echo-tracking technique before and after a 12-week treatment.In the meantime,their levels of nitric oxide(NO) and endothelin-1(ET-1) were measured respectively.Results:After treatment,all parameters in the 24-h ABPM and the elasticity of the carotid artery(β,Ep,AC and PVWβ) were markedly improved,the level of NO was increased,and ET-1 was decreased in both groups as compared with values before treatment (P<0.05 or P<0.01).Further,the improvements in the ratio of T/P of SBP & DBP and in the level of NO and ET-1 in the treatment group were more significant than those in the control group(P<0.05).There were no significant differences in all parameters in the ABPM monitoring and the elasticity of the carotid artery,the recovery of blood pressure circadian rhythm,and the therapeutic effect of antihypertension in EH patients between the two groups (P>0.05).Conclusions:Chinese herbal medicine for CGSHY may lower the blood pressure smoothly and recover the circadian rhythm of blood pressure in EH patients.They may also improve the carotid elasticity of EH patients similar to that of Enalapril.The mechanism of action of Chinese herbs on EH might be related to the regulation of vascular endothelium function.     

Effect of Astragalin on matrix secretion and β1 integrin mRNA expression in human mesangial cells

Ｍｅｓａｎｇｉａｌｃｅｌｌｓ(ＭＣ)ｐｒｏｌｉｆｅｒａｔｉｏｎａｎｄａｃｃｕｍｕｌａｔｉｏｎｏｆｅｘｔｒａｃｅｌｌｕｌａｒｍａｔｒｉｘ(ＥＣＭ)ｐｌａｙａｋｅｙｒｏｌｅｉｎｐｒｏｇｒｅｓｓｉｏｎｏｆｃｈｒｏｎｉｃｒｅｎａｌｄｉｓｅａｓｅｓ1　Ｒｅｃｅｎｔｓｔｕｄｉｅｓ2　ｈａｖｅｓｈｏｗｎｔｈａｔβ1ｉｎｔｅｇｒｉｎｉｎｖｏｌｖｅｓｉｎｔｈｅｐａｔｈｏｇｅｎｅｓｉｓｏｆｇｌｏｍｅｒｕｌｏｓｃｌｅｒｏｓｉｓｂｙｍｏｄｕｌａｔｉｏｎｏｆＭＣｐｒｏｌｉｆｅｒａｔｉｏｎａｎｄＥＣＭｓｅｃｒｅｔｉｏｎＴｈｅｓｕ…     

Effects of L-Tetrahydropalmatine on NOSⅢ Gene Expression in Hypoxia and Cultured Porcine Cerebral Arterial Endothelial Cells during Reoxygenation

L- Tetrahydropalmatine (L- THP) ,a kind of al-kaloid extracted from traditional Chinese medicineRhizoma corydalis,posseses sedative,analgesic andhypnotic effects.Recently,it has been demonstratedthat L- THPalso had calcium- antagonistic and antiar-rythmic effects.Studies showed that L- THP had aprotective effect on acute focal and global cerebral is-chemia- reperfusion injury[1,2 ] .Many studies provedthat the production of NO wasincreased significantlyduring ischemia- reperfusion.The o…     

Regulation effect of vascular endothelial growth factor on vascularization and angiogenesis in developmental human fetal retinas

目的 :研究血管内皮生长因子 ( Vascular endothelial growth factor VEGF)对人胚胎视网膜血管发生的调节作用。方法 :收集 54例 9～ 4 0周龄胎儿眼球后壁标本 ,免疫组织化学染色 ,光镜观察。结果 :1VEGF在视网膜的表达呈波峰式分布 ,高峰在 9～ 13周及 2 6周左右。 2节细胞层的梭形细胞(血管内皮细胞前体细胞 )、血管内皮细胞呈增殖细胞核抗原 ( Proliferation cell nucelear antigen,PCNA)免疫反应阳性 ,水平波动 ,高峰在 9～ 13周及 2 1周前后 ,此期间梭形细胞不断增殖、分化形成内皮细胞索 ,经改建形成视网膜内层血管 ,2 6、34周起见内核层内、外缘血管内皮细胞呈 PCNA免疫反应阳性 ,并保持至足月。 3视网膜 VEGF表达量与梭形细胞、血管内皮细胞 PCNA表达量呈显著正相关( r=0 .736,P<0 .0 1)。结论 :VEGF对视网膜内层及外层血管发生均有促进作用     

Effect of Jianpi Huoxue decoction (健脾活血方)-containing serum on tumor necrosis factor-α secretion and gene Expression of endotoxin receptors in RAW264.7 cells induced by lipopolysaccharide

Objective:To evaluate the effect of Jianpi Huoxue decoction(健脾活血方,JHD)-containing serum on tumor necrosis factor-α(TNF-α) secretion and endotoxin receptor gene expression in RAW264.7 cells induced by lipopolysaccharide(LPS).Methods:The cytotoxicity of blank-control serum and JHD-containing serum at different concentrations were evaluated through the lactate dehydrogenase(LDH) assay in RAW264.7 cells.RAW264.7 cells were divided into six groups:5%blank-control serum group(C1,n=3),5%blank-control serum plus...     

Effect of Kang’ ai Injection (康艾注射液) on serum level of soluble interleukin-2 receptor and vascular endothelial growth factor in patients with esophageal carcinoma during radiotherapy

Objective： To observe the effect of Kang＇ai Injection （康艾注射液, KAI） on serum level of soluble interleukin-2 receptor （sIL-2R） and vascular endothelial growth factor （VEGF） in patients with esophageal carcinoma （EC） during radiotherapy （RT）, and to investigate its synergistic effect with RT and its influence on immunological function of the body. Methods： One hundred and seventy patients with EC, who had missed the chance of surgical operational therapy, were assigned to the treated group （90 cases） and the RT group （80 cases）, and at the same time a control group consisting of 80 inpatients without tumors was set up. Patients in the RT group were treated with RT alone but KAI was given additionally to those in the treated group, with 50 ml given once per day via intravenous dripping, 15 days as one course, and 2 courses administered in total. The immediate therapeutic efficacy and changes of serum slL-2R and VEGF levels were observed, and the effect of KAI on patients＇ quality of life （QOF） was evaluated by Karnofsky scoring. Results： In 16 patients of the treated group it was completely remission （OR）, in 54 partially remission （PR）, in 18 it was stabilized disease （SD） and in 2 progressive disease （PD）, with the total effective rate （CR ＋ PR） as 77.8%, while in those of the control group it was 12, 46, 18, 4 and 72.5%, respectively, the immediate therapeutic efficacy in the treated group was somewhat better than that in the RT group, but showed no statistical significance （P〉0.05）. Serum levels of slL-2R and VEGF in all the patients before treatment were higher than those in the control group, which were decreased after treatment in both groups （P〈0.05）, but the improvement in the treated group was better than that in the RT group, showing significant difference （P〈0.05）, and patients＇ QOF improved more significantly in the former as well （62.2 % vs 40.0%, P〈 0.05）. Conclusion： KAI in combination with RT in treating patients with EC could enhance the immunological function of patients, improve their QOF and enhance their sensitivity to RT.     

Combinatorial effects of NaomaiYihao Capsules(脑脉一号胶囊) and vascular endothelial growth factor gene-transfected bone marrow mesenchymal stem cells on angiogenesis in cerebral ischemic tis sues in rats

OBJECTIVE:To investigate the combinatorial effects of Naomai Yihao(NMYH) Capsules(脑脉一号胶囊) and vascular endothelial growth factor(VEGF) gene-transfected bone marrow mesenchymal stem cells(BMSCs) on angiogenesis in cerebral ischemic tissues in rats and the mechanism.METHOD:BMSCs were isolated and cultured from bone marrow by an adherence method.Then,BMSCs were transfected with the eukaryotic expression plasmid pEGFP-VEGF 165 by positive ionic liposome transfection.A rat model of middle cerebral artery occlusion(MCAO) was established.Rats were allocated to six groups:model,BMSC,VEGF gene-transfected BMSC transplantation(BMSC/VEGF),NMYH,combined NMYH and BMSC/VEGF(combined treatment group) and sham operation groups.The behavioral rating score(BRS) of rat and the expression of CD34 and VEGF in brain tis sue were measured by immunohistochemistry on days 7,14 and 21 after reperfusion.Angiogenesi was observed and evaluated with laser scanning confocal microscopy.RESULTS:The BRS of rats in NMYH,BMSC transplan tation and combined treatment groups was significantly lower than that of the model group(P< 0.001),with no significant difference between NMYH and transplantation groups(P=0.619).The expression of CD34 andVEGF in NMYH,transplanta tion and combined treatment groups increased(P< 0.001),with a significant difference between NMYH and transplantation groups(P<0.001).The blood vessel area in NMYH,transplantation and com bined treatment groups was significantly increased(P<0.05),without a significant difference between NMYH and transplantation groups(P=0.873).CONCLUSIONS:VEGF gene-transfected BMSCs im prove angiogenesis in the cerebral ischemic area NMYH Capsules promote angiogenesis in MCAO rats treated with BMSC transplantation,which show an improved BRS.The mechanism of angio genesis may be related to up-regulation ofVEGF ex pression.     

Effect of melatonin on the spatial and temporal changes of ［Ca2+］i in single living cells of cortical neurons by laser scanning confocal microscopy

Ｍｅｌａｔｏｎｉｎ (ＭＴ ,Ｎ ａｃｅｔｙｌ 5 ｍｅｔｈｏｘｙｌｔｒｙｐｔａｍｉｎｅ)ｉｓａｈｏｒｍｏｎｅｓｅｃｒｅｔｅｄｍａｉｎｌｙｂｙｔｈｅｐｉｎｅａｌｇｌａｎｄ ＳｏｍｅｉｎｖｅｓｔｉｇａｔｏｒｓｈａｖｅｓｈｏｗｎｔｈａｔｔｈｅｅｘｏｇｅｎｏｕｓａｄｍｉｎｉｓｔｒａｔｉｏｎｏｆＭＴｃｏｕｌｄｐｒｏｌｏｎｇｌｉｆｅ ,ｐｏｓｔｐｏｎｅａｇｉｎｇ ,ａｎｄｒｅｄｕｃｅｔｈｅｉｎｃｉｄｅｎｃｅｏｆａｇｅ ｒｅｌａｔｅｄｄｉｓｅａｓｅｓ 1　ＩｎｔｒａｃｅｌｌｕｌａｒｆｒｅｅＣａ2 ｃｏｎｃｅｎｔｒａｔｉｏｎ (…