Objective:To explore the mechanism of Danggui Buxue Decoction(当归补血汤,DBD) on the liver fibrosis related to hepatic lipid peroxidation and matrix metalloproteinases(MMP) -2/9 activities.Methods: The liver fibrosis ...Objective:To explore the mechanism of Danggui Buxue Decoction(当归补血汤,DBD) on the liver fibrosis related to hepatic lipid peroxidation and matrix metalloproteinases(MMP) -2/9 activities.Methods: The liver fibrosis in 28 rats was induced by an injection of carbon tetrachloride(CCl_4) and fed with high lipid and low protein diet for 6 weeks,the model rats were randomly divided into the model group and DBD treated group,14 in each group,and another 10 rats as the normal group were observed as well.Rats in the DB...展开更多
Objective:To study the effect of estrogen on anovulatory dysfunctional uterine bleeding(ADUB).Methods:Primary endometrial epithelial cells of Hainan Lizu female was cultured and hydrolylic activity of gelalinase was d...Objective:To study the effect of estrogen on anovulatory dysfunctional uterine bleeding(ADUB).Methods:Primary endometrial epithelial cells of Hainan Lizu female was cultured and hydrolylic activity of gelalinase was determined by gelatin zymography analysis.Cellular mRNA and protein synthesis was blocked respectively to determine whether the increased expression of MMP-2/9 was induced by estrogen.The expression of VEGF was blocked by siRNA.After treatment with various factors.MMP-9,VEGF,total Erk and phosphorylated Erk expression in primary uterine epithelial cells was detected by Western blotting analysis.Cell MMP-2/9mRNA levels was measured by real-time RT-PCR.Results:The activity and expression of MMP2/9 was inereased in the endometrium of patients with ADUB.Estrogen could up-regulate the expression of VEGF and activate Erk 1/2-Elk1 signal path.After interference by siRNA,ERK1/2 pathway was blocked in cells,and the expression of MMP-2/9 was down-regulated.ERK1/2 specific blocker U0126 blocked ERK phosphorylation,and it could down-regulate the expression of MMP-2/9.Conclusions:The results showed that the estrogen can increase the expression of VEGF,and thus activate ERK1/2 pathway to induce MMP-2/9 expression.展开更多
目的评价甲泼尼龙对呼吸机相关性肺损伤(VILI)大鼠肺组织瞬时受体电位香草酸4 (TRPV4)/基质金属蛋白酶2/9(MMP-2/MMP-9)信号通路的影响。方法清洁级雄性SD大鼠100只,采用随机数字表法分为5组(n=20):对照组(C组)、机械通气组(V组)、甲泼...目的评价甲泼尼龙对呼吸机相关性肺损伤(VILI)大鼠肺组织瞬时受体电位香草酸4 (TRPV4)/基质金属蛋白酶2/9(MMP-2/MMP-9)信号通路的影响。方法清洁级雄性SD大鼠100只,采用随机数字表法分为5组(n=20):对照组(C组)、机械通气组(V组)、甲泼尼龙组(Mp组)、甲泼尼龙+GSK1016790A组(MpG组)、HC-067047组(H组)。C组不行机械通气,自主呼吸空气4 h;V组机械通气(RR 40次/min,VT 40 m L/kg,I∶E 1∶1,PEEP 0,Fi O221%) 4 h;Mp组在机械通气前20 min静脉输注甲泼尼龙10.0 mg/kg;MpG组在给予甲泼尼龙前20 min静脉输注GSK1016790A 0.025 mg/kg;H组机械通气前30 min静脉输注HC-067047 10.0 mg/kg。机械通气4 h时,检测支气管肺泡灌洗液(BALF)中白细胞介素-1(IL-1)、肿瘤坏死因子-α(TNF-α)、总蛋白浓度,测定肺通透指数(LPI)、肺湿/干质量比(W/D),观察肺组织病理学结果。Western blot法检测肺组织TRPV4、MMP-2、MMP-9的表达水平。结果与C组比较,V组和MpG组BALF中IL-1(ng/m L:84.56±5.35 vs. 144.85±9.39、121.56±7.69)、TNF-α(ng/m L:179.65±45.73 vs. 486.18±94.79、316.93±69.71)、总蛋白(mg/m L:321.29±28.76 vs. 687.78±65.78、476.39±46.67)升高,肺组织LPI [(2.47±0.17)×10^(-3)vs.(6.19±0.29)×10^(-3)、(4.24±0.25)×10^(-3)]、W/D比值(4.42±0.19 vs. 8.83±0.61、6.32±0.41)升高,TRPV4(1.85±0.25 vs.5.81±0.92、3.87±0.65)、MMP-2 (0.44±0.06 vs. 1.16±0.23、0.85±0.11)、MMP-9(0.19±0.03 vs. 0.46±0.09、0.34±0.07)表达上调(P<0.05);与V组比较,Mp组、MpG组和H组BALF中IL-1(ng/m L:144.85±9.39 vs. 89.78±5.91、121.56±7.69、94.23±6.78)、TNF-α(ng/m L:486.18±94.79 vs. 186.42±49.37、316.93±69.71、193.71±51.41)、总蛋白(mg/m L:687.78±65.78 vs. 348.78±31.52、476.39±46.67、359.68±36.12)降低,肺组织LPI [(6.19±0.29)×10^(-3)vs.(2.85±0.14)×10^(-3)、(4.24±0.25)×10^(-3)、(2.97±0.21)×10^(-3)]、W/D比值(8.83±0.61 vs. 4.75±0.22、6.32±0.41、4.82±0.25)降低,TRPV4(5.81±0.92 vs. 2.13±0.29、3.87±0.65、2.35±0.37)、M展开更多
基金Supported by the National Natural Science Foundation of China (No,30772869)Major State Basic Research Development of China (973 Program,No,2006CB504801)+2 种基金Shanghai Subject Chief Scientist (No.08XD1404100)E-institute of Shanghai Municipal Education Commission (No.03008)Innovative Research Team in Shanghai Municipal Education Commission
文摘Objective:To explore the mechanism of Danggui Buxue Decoction(当归补血汤,DBD) on the liver fibrosis related to hepatic lipid peroxidation and matrix metalloproteinases(MMP) -2/9 activities.Methods: The liver fibrosis in 28 rats was induced by an injection of carbon tetrachloride(CCl_4) and fed with high lipid and low protein diet for 6 weeks,the model rats were randomly divided into the model group and DBD treated group,14 in each group,and another 10 rats as the normal group were observed as well.Rats in the DB...
基金supported by Natural Science Foundation of Hainan Province(No.812148)
文摘Objective:To study the effect of estrogen on anovulatory dysfunctional uterine bleeding(ADUB).Methods:Primary endometrial epithelial cells of Hainan Lizu female was cultured and hydrolylic activity of gelalinase was determined by gelatin zymography analysis.Cellular mRNA and protein synthesis was blocked respectively to determine whether the increased expression of MMP-2/9 was induced by estrogen.The expression of VEGF was blocked by siRNA.After treatment with various factors.MMP-9,VEGF,total Erk and phosphorylated Erk expression in primary uterine epithelial cells was detected by Western blotting analysis.Cell MMP-2/9mRNA levels was measured by real-time RT-PCR.Results:The activity and expression of MMP2/9 was inereased in the endometrium of patients with ADUB.Estrogen could up-regulate the expression of VEGF and activate Erk 1/2-Elk1 signal path.After interference by siRNA,ERK1/2 pathway was blocked in cells,and the expression of MMP-2/9 was down-regulated.ERK1/2 specific blocker U0126 blocked ERK phosphorylation,and it could down-regulate the expression of MMP-2/9.Conclusions:The results showed that the estrogen can increase the expression of VEGF,and thus activate ERK1/2 pathway to induce MMP-2/9 expression.
文摘目的评价甲泼尼龙对呼吸机相关性肺损伤(VILI)大鼠肺组织瞬时受体电位香草酸4 (TRPV4)/基质金属蛋白酶2/9(MMP-2/MMP-9)信号通路的影响。方法清洁级雄性SD大鼠100只,采用随机数字表法分为5组(n=20):对照组(C组)、机械通气组(V组)、甲泼尼龙组(Mp组)、甲泼尼龙+GSK1016790A组(MpG组)、HC-067047组(H组)。C组不行机械通气,自主呼吸空气4 h;V组机械通气(RR 40次/min,VT 40 m L/kg,I∶E 1∶1,PEEP 0,Fi O221%) 4 h;Mp组在机械通气前20 min静脉输注甲泼尼龙10.0 mg/kg;MpG组在给予甲泼尼龙前20 min静脉输注GSK1016790A 0.025 mg/kg;H组机械通气前30 min静脉输注HC-067047 10.0 mg/kg。机械通气4 h时,检测支气管肺泡灌洗液(BALF)中白细胞介素-1(IL-1)、肿瘤坏死因子-α(TNF-α)、总蛋白浓度,测定肺通透指数(LPI)、肺湿/干质量比(W/D),观察肺组织病理学结果。Western blot法检测肺组织TRPV4、MMP-2、MMP-9的表达水平。结果与C组比较,V组和MpG组BALF中IL-1(ng/m L:84.56±5.35 vs. 144.85±9.39、121.56±7.69)、TNF-α(ng/m L:179.65±45.73 vs. 486.18±94.79、316.93±69.71)、总蛋白(mg/m L:321.29±28.76 vs. 687.78±65.78、476.39±46.67)升高,肺组织LPI [(2.47±0.17)×10^(-3)vs.(6.19±0.29)×10^(-3)、(4.24±0.25)×10^(-3)]、W/D比值(4.42±0.19 vs. 8.83±0.61、6.32±0.41)升高,TRPV4(1.85±0.25 vs.5.81±0.92、3.87±0.65)、MMP-2 (0.44±0.06 vs. 1.16±0.23、0.85±0.11)、MMP-9(0.19±0.03 vs. 0.46±0.09、0.34±0.07)表达上调(P<0.05);与V组比较,Mp组、MpG组和H组BALF中IL-1(ng/m L:144.85±9.39 vs. 89.78±5.91、121.56±7.69、94.23±6.78)、TNF-α(ng/m L:486.18±94.79 vs. 186.42±49.37、316.93±69.71、193.71±51.41)、总蛋白(mg/m L:687.78±65.78 vs. 348.78±31.52、476.39±46.67、359.68±36.12)降低,肺组织LPI [(6.19±0.29)×10^(-3)vs.(2.85±0.14)×10^(-3)、(4.24±0.25)×10^(-3)、(2.97±0.21)×10^(-3)]、W/D比值(8.83±0.61 vs. 4.75±0.22、6.32±0.41、4.82±0.25)降低,TRPV4(5.81±0.92 vs. 2.13±0.29、3.87±0.65、2.35±0.37)、M
