Objective：To investigate the mechanism of action of Fuzheng Huayu Formula（扶正化瘀方,FZHY）against renal interstitial fibrosis（RIF）relating to oxidative injury and nuclear factor-kappa B（NF-κB）activity.Methods...Objective：To investigate the mechanism of action of Fuzheng Huayu Formula（扶正化瘀方,FZHY）against renal interstitial fibrosis（RIF）relating to oxidative injury and nuclear factor-kappa B（NF-κB）activity.Methods：Thirty-two Sprague-Dawley rats were randomly divided into 3 groups：normal group,model group and FZHY treatment group.The RIF model was induced by oral administration of HgC l2 at a dose of 8 mg/kg body weight once a day for 9 weeks.Meanwhile,rats in FZHY treatment group orally took FZHY at a dose of4.0 g/kg rat weight for 9 weeks.The content of hydroxyproline（Hyp）and collagen deposition in kidney were observed.The activities of superoxide dismutase（SOD）and glutathione peroxidase（GSH-Px）,the content of glutathione（GSH）and malondialdehyde（MDA）of kidney were tested.The expressions of inhibitor-κappa B（IκB）,phospho-IκB（p-IκB）,tumor necrosis factor-α（TNF-α）,matrix metalloproteinase-2（MMP-2）andα-smooth muscle actin（α-SMA）were analyzed by Western blot.α-SMA expression was also observed by immunofluorescent staining.MMP-2 activity was measured by gelatin zymography.NF-κB activation was determined by electrophoretic mobility shift assay.Results：Renal interstitial fibrosis was induced by Hg Cl2,demonstrated by remarkably increased Hyp contents and excessive collagen deposition in kidney（P〈0.01）.FZHY significantly inhibited renal interstitial collagen deposition and reduced Hyp content of the Hg Cl2-treated rats（P〈0.01）.GSH content decreased obviously,and MDA content increased significantly in HgC l2-treated rats compared with that of normal rats（P〈0.01）.FZHY significantly increased GSH content and decreased MDA content in the model rats（P〈0.01）.The expressionα-SMA was increased in model rats compared with that of normal rats,FZHY significantly decreased its expression（P〈0.01）.The expressions of p-IκB and TNF-αand MMP-2,MMP-2 activity,and NF-κB activation were increased in model group compared with that in normal group（P〈0.01）,FZHY significantly decreased NF-κB activation,MMP-2 activity and p-IκB and TNF-αexpressions（P〈0.01）.Conclusions：FZHY could protect kidney from oxidative injury intoxicated by Hg Cl2,and antagonized oxidative stress-stimulated NF-κB activity through inhibition of IκB phosphorylation in the interstitial fibrotic kidney,these effects importantly contributed to FZHY action mechanism against renal interstitial fibrosis.展开更多
目的通过长期病理随访探讨青年受体接受高龄亲属活体供肾肾移植的安全性。方法根据供体年龄不同,将28例青年受体分为观察组(14例,高龄供体)和对照组(14例,中青年供体)。分别比较两组移植肾术后7年的存活情况及术后各时间点的血清肌酐(S...目的通过长期病理随访探讨青年受体接受高龄亲属活体供肾肾移植的安全性。方法根据供体年龄不同,将28例青年受体分为观察组(14例,高龄供体)和对照组(14例,中青年供体)。分别比较两组移植肾术后7年的存活情况及术后各时间点的血清肌酐(Scr)水平;比较两组在零时、术后6个月、术后7年移植肾活组织检查(活检)的慢性病理损伤评分;比较两组受体术后6个月、术后7年移植肾间质纤维化相关指标结缔组织生长因子(CTGF)、转化生长因子(TGF)-β、层黏连蛋白(LN)、纤维连接蛋白(FN)及细胞衰老相关指标细胞间连接蛋白(Cx)43及哺乳动物雷帕霉素靶蛋白(mTOR)的表达量。结果观察组和对照组移植肾术后7年存活率分别为78.5%和92.8%,差异无统计学意义(P>0.05)。观察组、对照组术后7 d Scr水平分别为190、160μmol/L,术后1个月Scr水平分别为170、125μmol/L,观察组术后各时间点的Scr水平均高于对照组,差异均有统计学意义(均为P<0.05)。观察组移植肾组织零时活检的慢性病理损伤总评分明显高于对照组(P<0.05),但两组术后7年的慢性病理损伤总评分无明显差异(P>0.05)。观察组和对照组组内各时间点比较,术后7年活检的慢性病理损伤总评分均高于零时活检及术后6个月活检的慢性病理损伤总评分(均为P<0.05)。两组术后7年移植肾组织中CTGF、TGF-β、LN、FN、mTOR、Cx43表达量的比较差异均无统计学意义(均为P>0.05)。结论长期随访结果显示青年受体接受高龄供肾与接受中青年供肾的病理学改变相似,从病理学角度考虑青年受体接受高龄供肾是安全可行的。展开更多
[目的]研究参芪泄浊饮对腺嘌呤致大鼠慢性肾衰肾组织基质金属蛋白酶1(MMP-1)、基质金属蛋白酶抑制剂1(TIMP-1)基因表达的影响。[方法]SPF级雄性SD大鼠54只,采用Yokozawa法复制慢性肾衰大鼠模型,随机分为参芪泄浊饮高剂量组、参芪泄浊饮...[目的]研究参芪泄浊饮对腺嘌呤致大鼠慢性肾衰肾组织基质金属蛋白酶1(MMP-1)、基质金属蛋白酶抑制剂1(TIMP-1)基因表达的影响。[方法]SPF级雄性SD大鼠54只,采用Yokozawa法复制慢性肾衰大鼠模型,随机分为参芪泄浊饮高剂量组、参芪泄浊饮常规剂量组、氯沙坦组、模型组,分别予高剂量组、常规剂量组、氯沙坦组以参芪泄浊饮水煎液20m L/kg·d、10m L/kg·d、氯沙坦组9mg/kg·d,模型组与空白组大鼠均予纯净水10m L/kg·d,连续灌胃干预8周,ELISA法测量血肌酐(Scr)、尿素氮(BUN)、丙氨酸转氨酶(ALT);荧光定量PCR方法检测肾组织中MMP-1、TIMP-1。[结果]1Scr、BUN各组大鼠较空白组均有升高(P<0.05),氯沙坦组明显低于模型组(P<0.05);Scr高剂量组大鼠明显低于常规剂量组、氯沙坦组及模型组大鼠(P<0.05),常规剂量组与氯沙坦组亦低于模型组(P<0.05);BUN变化趋势与Scr相同,高剂量组降低不明显(P>0.05)。2MMP-1 m RNA各组均高于空白组(P<0.05),高剂量组显著高于常规剂量组、氯沙坦组及模型组(P<0.05),常规剂量组与氯沙坦组也显著高于模型组(P<0.05);TIMP-1 m RNA各组均高于空白组(P<0.05),高剂量组明显低于常规剂量组、氯沙坦组及模型组(P<0.05),常规剂量组与氯沙坦组明显低于模型组(P<0.05)。[结论]参芪泄浊饮可通过促进MMP-1 m RNA及抑制TIMP-1 m RNA表达,使细胞外基质(extracellular matrix,ECM)的降解增加,堆积减少,进而减缓CRF的进一步发展,保护肾脏。展开更多
基金Supported by the National Natural Science Foundation of China(No.81270053)the National Science and Technology Major Project(No.2014ZX10005001)+1 种基金the International S&T Cooperation Program of China(No.2014DFA31440)"Three-Year Action Plan" for Development of TCM in Shanghai(No.ZY3-CCCX-2-1003)
文摘Objective：To investigate the mechanism of action of Fuzheng Huayu Formula（扶正化瘀方,FZHY）against renal interstitial fibrosis（RIF）relating to oxidative injury and nuclear factor-kappa B（NF-κB）activity.Methods：Thirty-two Sprague-Dawley rats were randomly divided into 3 groups：normal group,model group and FZHY treatment group.The RIF model was induced by oral administration of HgC l2 at a dose of 8 mg/kg body weight once a day for 9 weeks.Meanwhile,rats in FZHY treatment group orally took FZHY at a dose of4.0 g/kg rat weight for 9 weeks.The content of hydroxyproline（Hyp）and collagen deposition in kidney were observed.The activities of superoxide dismutase（SOD）and glutathione peroxidase（GSH-Px）,the content of glutathione（GSH）and malondialdehyde（MDA）of kidney were tested.The expressions of inhibitor-κappa B（IκB）,phospho-IκB（p-IκB）,tumor necrosis factor-α（TNF-α）,matrix metalloproteinase-2（MMP-2）andα-smooth muscle actin（α-SMA）were analyzed by Western blot.α-SMA expression was also observed by immunofluorescent staining.MMP-2 activity was measured by gelatin zymography.NF-κB activation was determined by electrophoretic mobility shift assay.Results：Renal interstitial fibrosis was induced by Hg Cl2,demonstrated by remarkably increased Hyp contents and excessive collagen deposition in kidney（P〈0.01）.FZHY significantly inhibited renal interstitial collagen deposition and reduced Hyp content of the Hg Cl2-treated rats（P〈0.01）.GSH content decreased obviously,and MDA content increased significantly in HgC l2-treated rats compared with that of normal rats（P〈0.01）.FZHY significantly increased GSH content and decreased MDA content in the model rats（P〈0.01）.The expressionα-SMA was increased in model rats compared with that of normal rats,FZHY significantly decreased its expression（P〈0.01）.The expressions of p-IκB and TNF-αand MMP-2,MMP-2 activity,and NF-κB activation were increased in model group compared with that in normal group（P〈0.01）,FZHY significantly decreased NF-κB activation,MMP-2 activity and p-IκB and TNF-αexpressions（P〈0.01）.Conclusions：FZHY could protect kidney from oxidative injury intoxicated by Hg Cl2,and antagonized oxidative stress-stimulated NF-κB activity through inhibition of IκB phosphorylation in the interstitial fibrotic kidney,these effects importantly contributed to FZHY action mechanism against renal interstitial fibrosis.
文摘目的通过长期病理随访探讨青年受体接受高龄亲属活体供肾肾移植的安全性。方法根据供体年龄不同,将28例青年受体分为观察组(14例,高龄供体)和对照组(14例,中青年供体)。分别比较两组移植肾术后7年的存活情况及术后各时间点的血清肌酐(Scr)水平;比较两组在零时、术后6个月、术后7年移植肾活组织检查(活检)的慢性病理损伤评分;比较两组受体术后6个月、术后7年移植肾间质纤维化相关指标结缔组织生长因子(CTGF)、转化生长因子(TGF)-β、层黏连蛋白(LN)、纤维连接蛋白(FN)及细胞衰老相关指标细胞间连接蛋白(Cx)43及哺乳动物雷帕霉素靶蛋白(mTOR)的表达量。结果观察组和对照组移植肾术后7年存活率分别为78.5%和92.8%,差异无统计学意义(P>0.05)。观察组、对照组术后7 d Scr水平分别为190、160μmol/L,术后1个月Scr水平分别为170、125μmol/L,观察组术后各时间点的Scr水平均高于对照组,差异均有统计学意义(均为P<0.05)。观察组移植肾组织零时活检的慢性病理损伤总评分明显高于对照组(P<0.05),但两组术后7年的慢性病理损伤总评分无明显差异(P>0.05)。观察组和对照组组内各时间点比较,术后7年活检的慢性病理损伤总评分均高于零时活检及术后6个月活检的慢性病理损伤总评分(均为P<0.05)。两组术后7年移植肾组织中CTGF、TGF-β、LN、FN、mTOR、Cx43表达量的比较差异均无统计学意义(均为P>0.05)。结论长期随访结果显示青年受体接受高龄供肾与接受中青年供肾的病理学改变相似,从病理学角度考虑青年受体接受高龄供肾是安全可行的。
文摘[目的]研究参芪泄浊饮对腺嘌呤致大鼠慢性肾衰肾组织基质金属蛋白酶1(MMP-1)、基质金属蛋白酶抑制剂1(TIMP-1)基因表达的影响。[方法]SPF级雄性SD大鼠54只,采用Yokozawa法复制慢性肾衰大鼠模型,随机分为参芪泄浊饮高剂量组、参芪泄浊饮常规剂量组、氯沙坦组、模型组,分别予高剂量组、常规剂量组、氯沙坦组以参芪泄浊饮水煎液20m L/kg·d、10m L/kg·d、氯沙坦组9mg/kg·d,模型组与空白组大鼠均予纯净水10m L/kg·d,连续灌胃干预8周,ELISA法测量血肌酐(Scr)、尿素氮(BUN)、丙氨酸转氨酶(ALT);荧光定量PCR方法检测肾组织中MMP-1、TIMP-1。[结果]1Scr、BUN各组大鼠较空白组均有升高(P<0.05),氯沙坦组明显低于模型组(P<0.05);Scr高剂量组大鼠明显低于常规剂量组、氯沙坦组及模型组大鼠(P<0.05),常规剂量组与氯沙坦组亦低于模型组(P<0.05);BUN变化趋势与Scr相同,高剂量组降低不明显(P>0.05)。2MMP-1 m RNA各组均高于空白组(P<0.05),高剂量组显著高于常规剂量组、氯沙坦组及模型组(P<0.05),常规剂量组与氯沙坦组也显著高于模型组(P<0.05);TIMP-1 m RNA各组均高于空白组(P<0.05),高剂量组明显低于常规剂量组、氯沙坦组及模型组(P<0.05),常规剂量组与氯沙坦组明显低于模型组(P<0.05)。[结论]参芪泄浊饮可通过促进MMP-1 m RNA及抑制TIMP-1 m RNA表达,使细胞外基质(extracellular matrix,ECM)的降解增加,堆积减少,进而减缓CRF的进一步发展,保护肾脏。
