87±0.46),(16.31±0.96)U·mL-1]活力,与损伤组(11.44±1.00)U·mL-1相比,P<0.01;降低LDH的释放和MDA[分别为(1.62±0.06),(1.47±0.18)nmol·L-1)的含量,与损伤组(1.89±0.25)nmol·L-1)相比,P<0.05;以及细胞培养液中sICAM-1[分别为(0.93±0.11),(1.00±0.14)μg·L-1]和TNF-α[分别为(63.71±2.64),(66.22±4.43)ng·L-1]浓度,与损伤组(2.32±0.23)μg·L-1,(125.67±2.69)ng·L-1)相比,P<0.05;同时抑制内皮细胞中NF-κB的激活,上调I-κBα蛋白表达量。结论:补阳还五汤含药血清对同型半胱氨酸致内皮细胞损伤具保护作用,其保护作用机制可能与抑制NF-κB的活化有关。
AIM: To explore the bioactivity of an ethanolic extract of Schizandra arisanensis (SA-Et) and isolated constituents against interleukin-1 β and interferon-γ-mediated β cell death and abolition of insulin secretion.

METHODS: By employing BRIN-BD11 cells, the effects of SA-Et administration on cytokine-mediated cell death and abolition of insulin secretion 查找更多 were evaluated by a viability assay, cell cycle analysis, and insulin assay. The associated gene and protein expressions were also measured. In addition, the bioactivities of several peak compounds collected

from the SA-Et were tested against cytokine-mediated β cell death.RESULTS: Our Results revealed that SA-Et dose-dependently ameliorated cytokine-mediated β cell death and apoptosis. Instead of suppressing inducible nitric oxide synthase/nitric oxide cascade or p38MAPK activity, suppression of stress-activated protein kinase/c-Jun NH2-terminal kinase 更多 activity appeared to be the target for SA-Et against the {Selleck Anti-infection Compound Library|Selleck Antiinfection Compound Library|Selleck Anti-infection Compound Library|Selleck Antiinfection Compound Library|selleck Anti-infection Compound Library|selleck Antiinfection Compound Library|selleck Anti-infection Compound Library|selleck Antiinfection Compound Library|Anti-infection Compound Library|Antiinfection Compound Library|Anti-infection Compound Library|Antiinfection Compound Library|Anti-infection Compound Library|Antiinfection Compound Library|Anti-infection Compound Library|Antiinfection Compound Library|Anti-infection Compound Library|Antiinfection Compound Library|Anti-infection Compound Library|Antiinfection Compound Library|Anti-infection Compound Library|Antiinfection Compound Library|Anti-infection Compound Library|Antiinfection Compound Library|Anti-infection Compound Library|Antiinfection Compound Library|buy Anti-infection Compound Library|Anti-infection Compound Library半抑制浓度|Anti-infection Compound Library价格|Anti-infection Compound Library花费|Anti-infection Compound Library溶解度|Anti-infection Compound Library购买|Anti-infection Compound Library制造商|Anti-infection Compound Library查找购买|Anti-infection Compound Library订单|Anti-infection Compound Library mouse|Anti-infection Compound Library chemical structure|Anti-infection Compound Library分子量|Anti-infection Compound Library molecular weight|Anti-infection Compound Library数据表|Anti-infection Compound Library supplier|Anti-infection Compound Library体外|Anti-infection Compound Library细胞系|Anti-infection Compound Library concentration|Anti-infection Compound Library nmr|Anti-infection Compound Library体内|Anti-infection Compound Library clinical trial|Anti-infection Compound Library cell assay|Anti-infection Compound Library screening|Anti-infection Compound Library high throughput|buy Antiinfection Compound Library|Antiinfection Compound Library半抑制浓度|Antiinfection Compound Library价格|Antiinfection Compound Library花费|Antiinfection Compound Library溶解度|Antiinfection Compound Library购买|Antiinfection Compound Library制造商|Antiinfection Compound Library查找购买|Antiinfection Compound Library订单|Antiinfection Compound Library chemical structure|Antiinfection Compound Library数据表|Antiinfection Compound Library supplier|Antiinfection Compound Library体外|Antiinfection Compound Library细胞系|Antiinfection Compound Library concentration|Antiinfection Compound Library clinical trial|Antiinfection Compound Library cell assay|Antiinfection Compound Library screening|Antiinfection Compound Library high throughput|Anti-infection Compound high throughput screening| cytokine mix. In addition, SA-Et provided some insulinotropic effects which re-activated the abolished insulin exocytosis in cytokine-treated BRIN-BD11 cells. Finally, schiarisanrin A and B isolated from the SA-Et showed a dose-dependent protective effect against cytokine-mediated

β cell death. CONCLUSION: This is the first report on SA-Et ameliorating cytokine-mediated β cell death and dysfunction via anti-apoptotic and insulinotropic actions.
目的:为丹参的临床应用提供理论基础。方法:查阅近年来国内、外文献,从丹参的抗炎、抗肿瘤、细胞保护作用及其他生物学作用与丝裂原活化蛋白激酶(MAPK)信号通路的关系入手,综述丹参作用于MAPK信号通路的研究进展。结果与结论:丹参的多种生物学作用与MAPK信号通路中细胞外信号调节激酶(ERK)1、ERK2、c-Jun氨基末端激酶(JNK)、p38蛋白关系密切。应加强丹参的分子水平研究,使丹参生物学作用机制更加明确。
目的:探索补肾中药淫羊藿有效成分淫羊藿苷对间充质干细胞株C3H10T1/2的促成骨分化作用,及该作用与丝裂原活化蛋白激酶(mitogen-activated protein kinase,MAPK)信号通路的相关性。方法:体外培养间充质干细胞株C3H10T1/2,给予淫羊藿苷(0、10-7、10-6、10-5和10-4mol/L)联合成骨诱导液干预26d后,碱性磷酸酶(alkaline phosphatase,ALP)染色观察成骨分化情况。10-5mol/L淫羊藿苷干预C3H10T1/2细胞2、8、24与48h后,实时荧光定量聚合酶链式反应法(polymerase chain reaction,PCR)检测p38、细胞外调节蛋白激酶(extracellular signal-regulated protein kinase,p42/44)mRNA的表达。10-5mol/L淫羊藿苷干预C3H10T1/2细胞10、30、60和120min后,蛋白质印迹法检测p38丝裂原活化蛋白激酶(p38 mitogen-activated protein kinase,p38)、p42和p44,以及翼式转录因子氨基末端激酶(c-Jun N-terminal kinase,JNK)及其磷酸化产物的蛋白表达情况。结果:10-5mol/L淫羊藿苷联合成骨诱导液的促进C3H10T1/2细胞成骨分化能力最强。PCR结果显示,淫羊藿苷作用2h后p38基因表达显著下调(P<0.01);p42和p44mRNA水平在淫羊藿苷干预2h后均显著下调(P<0.01),而在淫羊藿苷干预48h后表达均上调(P<0.05,P0.