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1.
目的研究复方鱼腥草3种提取部位及其完整成分对db/db小鼠肾损害的保护作用,通过研究各提取物对JAK2/STAT3通路及其下游蛋白的影响探讨复方鱼腥草防治糖尿病肾病的可能机制。方法 1、提取复方鱼腥草水提物、醇提物、挥发油成分,并将3种成分按照所得质量比配制得到复方鱼腥草完整成分。2、选取8只db/m小鼠为正常组;将56只db/db小鼠分为模型组、盐酸二甲双胍组、AG490组、复方鱼腥草水提物组、复方鱼腥草醇提物组、复方鱼腥草挥发油组以及复方鱼腥草完整成分组,每组8只,给药8周,酶联免疫试剂盒法检测血浆转化生长因子-β1(TGF-β1)、纤连蛋白(FN)、胰高血糖素样肽-1(GLP-1)、抑胃肽(GIP)水平,HE染色观察小鼠肾脏病理变化。3、以RT-PCR法检测各组小鼠肾组织中的JAK2 mRNA、STAT3mRNA、SOCS-1 mRNA表达的变化情况;以Western Blot法检测肾组织中的JAK2、p-JAK2、STAT3、pSTAT3、SOCS-1、c-fos及c-jun蛋白表达变化,运用免疫荧光法检测肾组织c-fos、c-jun蛋白的表达。结果给药8周后,与正常组比较,模型组血浆中TGF-β1、FN、GIP水平升高(P 0.05),GLP-1水平下降(P 0.05);与模型组比较,治疗组小鼠血浆中TGF-β1、FN、GIP、GLP-1水平及肾组织病理改变均有所改善。模型组小鼠肾组织p-JAK2、p-STAT3蛋白表达及JAK2、STAT3 mRNA表达均比正常组增高(P 0.05);与模型组相比,各给药组小鼠肾组织p-JAK2,p-STAT3蛋白表达均有降低,醇提物组、挥发油组及完整成分组小鼠肾组织SOCS-1蛋白显著升高(P 0.05);各给药组的JAK2、STAT3基因表达变化不显著(P 0.05)。AG490组及完整成分组的c-fos、c-jun在肾小管及肾间质的表达均有不同程度下降(P 0.05)。结论复方鱼腥草对糖尿病肾损伤具有改善作用,其保护肾脏的作用可能与调节GLP-1、GIP水平,降低FN、TGF-β1的分泌,减少ECM聚积,维持肾脏结构、功能的完整性有关。其改善糖尿病肾损伤的分子机制可能通过SOCS负反馈调节JAK/STAT信号转导通路相关基因及蛋白表达,从而抑制降低下游原癌基因c-fos、c-jun的表达,减少炎症因子的活化有关。  相似文献   

2.
目的:比较复方鱼腥草不同提取部位对db/db小鼠肾损伤和JAK/STAT通路中部分基因的影响,探讨其防治糖尿病肾病的机制。方法:8周龄的db/m和db/db小鼠分为7组:db/m小鼠为正常组,db/db小鼠分为模型组,JAK酶抑制剂治疗组(AG490,1 mg·kg-1),复方鱼腥草石油醚提取部位组(SYM组),复方鱼腥草乙酸乙酯提取部位组(YSYZ组),复方鱼腥草正丁醇提取部位组(ZDC组),复方鱼腥草水提组(ST组),ig给药8周(7.8 g·kg-1)。检测小鼠尿白蛋白(Alb),24 h尿蛋白定量,血糖,天冬氨酸转氨酶(AST),丙氨酸转氨酶(ALT);粘连蛋白(FN);RT-PCR检测肾组织中的JAK2mRNA,STAT1mRNA,STAT3mRNA,SOCS-1mRNA的变化。结果:与正常组比较,模型组尿Alb,24 h尿蛋白定量,血糖,FN显著升高(P0.05);与模型组比较,尿Alb,24 h尿蛋白定量,FN均有不同程度的改善,且各提取部位组与水提组比较,复方鱼腥草正丁醇提取部位好于其他组,其中尿Alb与FN降低明显(P0.05)。与模型组比较,AG490组,SYM组,YSYZ组,ZDC组肾组织中的STAT1mRNA表达均明显下降(P0.05);ST组,ZDC组的SOCS-1mRNA表达升高(P0.05);但各治疗组的JAK2mRNA,STAT3mRNA表达没有显著差异。结论:复方鱼腥草能降低尿Alb,24 h尿蛋白定量及FN的分泌,且其正丁醇提取部位好于其他提取物组,并能调节JAK-STAT-SOCS-1相关基因表达,改善糖尿病肾损伤。  相似文献   

3.
目的 观察寿胎丸对复发性流产(RSA)小鼠的妊娠保护作用,基于JAK1/STAT3通路及细胞自噬探讨其作用机制。方法 分别构建正常妊娠小鼠模型及RSA小鼠模型,将小鼠分为空白组、模型组、地屈孕酮组和寿胎丸组,分别予相应药物干预,连续12 d。观察小鼠妊娠情况,计算胚胎丢失率及子宫脏器系数;HE染色观察小鼠蜕膜及胎盘组织病理改变;ELISA检测血清孕酮、β-人绒毛膜促性腺激素(β-HCG)含量;Western blot检测蜕膜组织Janus激酶1(JAK1)、p-JAK1、信号转导和转录激活因子3(STAT3)、p-STAT3、ATG5、Beclin1、LC3蛋白表达;实时荧光定量PCR检测蜕膜组织JAK1、STAT3、ATG5、Beclin1 mRNA表达。结果 与空白组比较,模型组小鼠胚胎丢失率显著升高(P<0.01),子宫脏器系数显著降低(P<0.01);蜕膜及胎盘组织形态受损,血清孕酮、β-HCG含量显著减少(P<0.01);蜕膜组织p-JAK1、p-STAT3、ATG5、 Beclin1蛋白表达及LC3-Ⅱ/LC3-Ⅰ比值显著降低(P<0.01, P&l...  相似文献   

4.
目的?观察生慧汤对APP/PS1痴呆小鼠海马酪氨酸蛋白激酶2(JAK2)/信号传导及转录激活因子3(STAT3)/细胞因子信号抑制物1(SOCS-1)信号通路的影响,并探讨其改善阿尔茨海默病(AD)突触可塑性的机制。方法?将36只APP/PS1小鼠随机分为APP/PS1组、多奈哌齐(donepezil)组和生慧汤(SHD)组,另将12只C57BL/6JNju小鼠设为空白(WT)组。Donepezil组按0.92 mg / (kg·d)的剂量灌胃多奈哌齐配置的混悬液,SHD组按13.5 g / (kg·d)的剂量灌胃生慧汤水煎液,WT组和APP/PS1组灌胃等体积的纯水。各组连续治疗4周,采用Morris水迷宫实验和跳台实验评价小鼠的认知功能。尼氏染色观察小鼠海马区神经元病理形态;高尔基染色观察小鼠海马区神经元树突棘的变化;酶联免疫吸附测定法(ELISA)和实时聚合酶链式反应(Real-time PCR)分别检测小鼠海马中肿瘤坏死因子α(TNF-α)和白细胞介素1β(IL-1β)的含量及其mRNA表达水平;采用蛋白免疫印迹(Western Blot)检测小鼠海马离子钙结合蛋白(IBA1)、胶质纤维酸性蛋白(GFAP)、JAK2、p-JAK2-Tyr1007、STAT3、p-STAT3-Tyr705、SOCS-1的蛋白表达水平。结果?与WT组比较,APP/PS1组小鼠平台潜伏期、游泳总路程和出错次数增加(P<0.01),穿越平台次数、目标象限停留时间和潜伏期减少(P<0.01)。与APP/PS1组比较,Donepezil组和SHD组小鼠平台潜伏期、游泳总路程和出错次数减少(P<0.05,P<0.01),穿越平台次数、目标停留象限时间和潜伏期增加(P<0.05,P<0.01)。与WT组比较,APP/PS1组小鼠海马CA3和DG区神经元数量及树突棘密度显著减少(P<0.01)。与APP/PS1组比较,Donepezil组和SHD组小鼠海马CA3和DG区神经元数量及树突棘密度增加(P<0.05,P<0.01)。与WT组比较,APP/PS1组小鼠海马中TNF-α和IL-1β的含量及mRNA水平增加(P<0.01)。与APP/PS1组比较,Donepezil组和SHD组小鼠海马中TNF-α和IL-1β的含量及mRNA水平减少(P<0.05,P<0.01)。与WT组比较,APP/PS1组小鼠海马中IBA1、GFAP、p-JAK2-Tyr1007/JAK2、p-STAT3-Tyr705/STAT3和SOCS-1的蛋白表达水平升高(P<0.01)。与APP/PS1组比较,Donepezil组和SHD组小鼠海马中IBA1、GFAP、p-JAK2-Tyr1007/JAK2、p-STAT3-Tyr705/STAT3和SOCS-1的蛋白表达水平减少(P<0.05,P<0.01)。结论?生慧汤可通过抑制神经炎症改善APP/PS1小鼠海马突触可塑性,其机制可能与其抑制JAK2/STAT3/SOCS-1信号通路有关。  相似文献   

5.
目的 研究安肠汤低、中、高剂量对SD大鼠溃疡性结肠炎的抗炎作用,通过研究不同给药剂量对miRNA-146a/非受体型酪氨酸蛋白激酶(JAK)/信号传导与转录激活因子(STAT)/细胞因子信号传导抑制蛋白-3(SOCS-3)信号通路及其下游蛋白的影响探讨安肠汤防治溃疡性结肠炎的可能机制。方法 实验大鼠分为正常组,模型组,美沙拉嗪组(1 g·kg-1),安肠汤低、中、高剂量组(6,12,24 g·kg-1),每组10只。除正常组外,其余各组均采用2,4,6-三硝基苯磺酸(TNBS)/乙醇灌肠法建立溃疡性结肠炎大鼠模型,分别给药14 d。观察大鼠神态、大便性状、毛发等一般情况的变化,并参照疾病活动指数(DAI)表进行评分,苏木素-伊红(HE)染色观察各组大鼠结肠组织病理改变,酶联免疫吸附测定(ELISA)检测大鼠血清肿瘤坏死因子-α(TNF-α),白细胞介素-10(IL-10),IL-17,IL-1β,IL-6水平,蛋白免疫印迹法(Western blot)检测结肠组织中JAK2,磷酸化STAT3(p-STAT3),STAT3,SOCS-3蛋白表达的变化,通过实时荧光定量聚合酶链式反应(Real-time PCR)测定大鼠结肠组织中JAK2,p-STAT3,STAT3,SOCS-3 mRNA以及血浆miRNA-146a的表达水平。结果 与正常组比较,模型组大鼠JAK2,p-STAT3,STAT3蛋白表达及JAK2,p-STAT3,STAT3 mRNA表达明显增高(P<0.05),模型组大鼠miRNA-146a,SOCS-3 mRNA以及SOCS-3蛋白表达明显降低(P<0.05);与模型组比较,给药组大鼠精神状态,进食量,毛色等情况均明显改善,DAI评分明显降低(P<0.05),给药组大鼠结肠溃疡组织明显改善,给药组大鼠结肠组织JAK2,p-STAT3,STAT3蛋白表达及JAK2,p-STAT3,STAT3 mRNA表达明显降低(P<0.05),给药组大鼠miRNA-146a,SOCS-3 mRNA以及SOCS-3蛋白表达明显增高(P<0.05)。结论 安肠汤可能通过影响miRNA-146a/JAK/STAT/SOCS-3信号转导通路相关基因及蛋白表达,抑制溃疡性结肠炎病情的发展。  相似文献   

6.
目的:比较复方鱼腥草合剂水提物、醇提物、挥发油以及完整成分对db/db小鼠肾损伤的作用,并探索其可能机制。方法:选取8只db/m小鼠为正常组;48只db/db小鼠分为模型组、盐酸二甲双胍组、复方鱼腥草合剂水提物组、醇提物组、挥发油组以及完整成分组,每组8只,给药8周,记录小鼠体质量以及血糖,8周后检测小鼠血糖、肾功能指标及肾脏指数,ELISA试剂盒法检测血清胰岛素水平、TGF-β1、FN、GLP-1、GIP水平,HE染色观察小鼠肾脏病理变化。结果:与模型组相比,醇提物、挥发油、完整成分组小鼠血清胰岛素水平、胰岛素敏感指数升高,BUN、Scr水平有所改善,差异无统计学意义。血清TGF-β1,FN,GIP水平降低(P<0.05),GLP-1含量升高(P<0.05)。肾脏组织病理改善明显,且以完整成分组改变最为显著。结论:复方鱼腥草合剂对糖尿病所致肾损伤有一定改善作用,其保护机制可能与下调TGF-β1、FN水平,减少ECM沉积,调节GLP-1、GIP分泌有关。  相似文献   

7.
目的 基于JAK2-STAT3信号通路探究苏木酮A(SA)在脂多糖(LPS)诱导的RAW264.7细胞模型中的抗炎作用和机制。方法 MTT法检测苏木酮A、LPS、AG490对RAW264.7细胞活力的影响;建立LPS诱导的RAW264.7细胞炎性模型,通过ELISA法检测上清液中白细胞介素6(IL-6)的分泌水平;采用RT-PCR技术检测IL-6、酪氨酸激酶2(JAK2)和信号转导及转录激活因子3(STAT3)的mRNA表达;采用Western Blot法检测JAK2、磷酸化JAK2(p-JAK2)、STAT3及磷酸化STAT3(p-STAT3)的蛋白表达。结果 与空白对照组比较,模型组的IL-6分泌水平明显增加,IL-6、JAK2和STAT3的m RNA表达上调,p-JAK2和p-STAT3蛋白表达水平升高(均P<0.01);与模型组比较,苏木酮A高剂量(5μg·mL-1)组明显降低了IL-6的含量,下调了IL-6、JAK2和STAT3的mRNA表达,抑制了p-JAK2和p-STAT3蛋白表达(均P<0.01)。结论 苏木酮A可能通过抑制JAK2-STAT3信号通路以抑制...  相似文献   

8.
调补肺肾法对COPD大鼠JAK/STAT信号转导的影响及远后效应   总被引:1,自引:0,他引:1  
目的:评价调补肺肾3种方法(补肺健脾、补肺益肾、益气滋肾法)对慢性阻塞性肺疾病(COPD)大鼠JAK/STAT信号转导的影响及远后效应.方法:大鼠随机分为对照组、模型组、补肺健脾组、补肺益肾组、益气滋肾组和氨茶碱组,采用香烟暴露联合反复细菌感染法制备COPD大鼠模型.于第9周对照组、模型组给予生理盐水,其余组分别给予相应药物灌胃,于第20,32周分批取材,观察肺组织病理,p-JAK2,p-STAT1,p-STAT3,p-STAT5蛋白表达及JAK2和SOCS3 mRNA表达.结果:第20,32周时,模型组JAK2 mRNA和p-JAK2,p-STAT1,p-STAT3,p-STAT5蛋白表达较对照组升高(P<0.01),3个中药(补肺健脾方、补肺益肾方、益气滋肾方)组及氨茶碱组较模型组显著降低(P <0.05,P<0.01).模型组SOCS3 mRNA较对照组升高(P<0.01),3个中药组及氨茶碱组较模型组明显升高(P<0.01),3个中药组明显高于氨茶碱组(P <0.05,P<0.01).与第20周比较,第32周补肺健脾组JAK2mRNA和p-JAK2,p-STAT3,p-STAT5蛋白表达均显著降低(P <0.05,P<0.01),补肺益肾组p-STAT3降低(P<0.01),益气滋肾组p-STAT3,p-STAT5降低(P <0.05,P<0.01),氨茶碱组上述指标均无显著性差异.结论:调补肺肾3法可明显减轻COPD肺组织损伤,且具有良好的远后效应,可能与调控JAK/STAT信号转导有关,其中补肺健脾方在降低p-JAK2,p-STAT3,p-STAT5表达方面,补肺益肾方在降低p-STAT3,益气滋肾方在降低p-STAT3,p-STAT5表达方面具有良好的远后效应.  相似文献   

9.
目的:研究益肝胶囊对刀豆蛋白A(ConA)所致小鼠肝损伤Janus蛋白酪氨酸蛋白激酶2/信号传导子和转录激活子3(JAK2/STAT3)信号通路的影响及作用机制。方法:50只清洁级雄性小鼠按随机数字表法分为正常组、模型组及益肝胶囊高、中、低剂量组(剂量分别为1.872g/kg、0.936g/kg和0.468g/kg)每组各10只,连续灌胃给药14 d。末次给药后1h,除正常组外其余各组小鼠均一次性尾静脉注射ConA 20mg/kg诱导小鼠肝损伤,禁食不禁水8 h后处死。检测血清中谷丙转氨酶(ALT)、谷草转氨酶(AST)、白介素6(IL-6)、肿瘤坏死因子а(TNF-а)和γ干扰素水平,Western blot法检测肝组织中细胞因子信号传导抑制因子3(SOCS-3)、p-JAK2和p-STAT3蛋白表达,HE染色观察肝组织的病理变化。结果:与模型组比较,益肝胶囊各剂量组小鼠血清中ALT、AST、IL-6、TNF-α和IFN-γ水平显著降低;肝组织中p-JAK2、p-STAT3蛋白表达显著降低,SOCS-3蛋白表达显著升高,益肝胶囊各剂量组小鼠肝组织的病理损伤程度均有明显减轻。结论:益肝胶囊可能通过SOCS-3调控JAK2/STAT3信号通路以抑制炎症反应,从而起到肝保护作用。  相似文献   

10.
目的探讨姜黄素通过抑制Janus激酶2-信号转导转录激活因子3(JAK2/STAT3)信号通路改善脂多糖诱导的小鼠急性肺损伤的机制。方法将30只雄性小鼠分为对照组、模型组和姜黄素干预组。姜黄素干预组连续灌胃给予姜黄素(100 mg/kg)7 d,每日1次,末次给药1 h后模型组和姜黄素腹腔注射给予脂多糖(10 mg/kg),对照组给予腹腔注射等量生理盐水,6 h后麻醉处死大鼠,进行小鼠肺组织切片观察,计算大鼠肺组织湿干重(W/D)比,检测支气管肺泡灌洗液中蛋白、肿瘤坏死因子α(TNF-α)和白介素-8(IL-8)水平,同时检测肺组织中JAK2、p-JAK2、STAT3和p-STAT3蛋白表达水平。结果对照组小鼠肺组织切片未见明显异常,模型组小鼠肺组织切片见肺泡壁部分增厚,细支气管腔内有大量脱落炎细胞及渗出物,泡壁毛细血管充血严重,姜黄素干预组小鼠肺组织病理症状较模型组轻;与对照组比较,模型组肺组织W/D和支气管肺泡灌洗液中蛋白、TNF-α、IL-8含量增加,给予姜黄素干预后,上述指标均降低;小鼠肺组织中JAK2和STAT3蛋白表达变化不显著,模型组小鼠肺组织中p-JAK2和p-STAT3蛋白表达较对照组增加,给予姜黄素干预后,小鼠肺组织中p-JAK2和p-STAT3蛋白表达降低。结论姜黄素可以通过抑制JAK2/STAT3信号通路减轻脂多糖诱导的小鼠急性肺损伤。  相似文献   

11.
Objective: To investigate the antagonistic cell injury effect and molecular mechanism of scutellarin(SCU)in hypoxia reoxygenation(HR) treated human cardiac microvascular endothelial cells(HCMECs).Methods: The method of 12 h hypoxia following by 12 h reoxygenation was used to culture HCMECs in vitro to built cell injury model. The groups were divided into control group, model(HR) group, and HR + SCU(0.1 μmol/L, 1 μmol/L, and 10 μmol/L) group. The cell viability was determined by MTT, and oxidative stress was detected by malondialdehyde(MDA) levels by biochemical assay kit. Protein expression of JAK2/p-JAK2 and STAT3/p-STAT3 were evaluated by Western blot.Results: The results of MTT and MDA showed that HR decreased the cell viability(P 0.05) and increased MDA level significantly(P 0.05), SCU played a contrary role in these processes. Western blot analysis indicates that, the expression of JAK2 and p-JAK2, STAT3, and p-STAT3 were increased in model group when compared with control group(P 0.05); Compared with model group, their expression were reduced by SCU(P 0.05).Conclusion: SCU took a protective effect on HR-treated HCMECs, and the molecular mechanism may be associated with the inhibition of JAK2/STAT3 signal transduction pathway.  相似文献   

12.

Objective

To compare the clinical efficacy difference between comprehensive ying needling therapy and intramuscular injection with ribavirin for mumps.

Methods

One hundred patients with mumps were randomly divided into comprehensive ying needling therapy group (group A, 52 cases) and western medicine group (group B, 48 cases), then 8 cases were eliminated and drop out from group A and 4 cases were eliminated and drop out from group B respectively, actual inclusion 44 cases in group A 44 cases in group B. Point bloodletting was performed at parotid gland (腮腺Sāixiàn) and Threeshang acupoints of the patients in group A for once every other day, treatment for 7 days was considered as 1 course of treatment, and 2 courses were needed. Intramuscular injection with ribavirin was given to the patients in group B for twice a day, treatment for 7 days was considered as 1 course, and 2 courses were needed. The parotid gland swelling score, fever score, orifice parotid duct swelling score, score of difficulty in opening mouth and the clinical efficacy of the patients in the two groups were compared before and after treatment.

Results

The cured and markedly effective rate in group A was 90.9% (40/44), which was superior to 68.2% in group B (30/44) (P?<?0.05). The symptom scores were all improved significantly in the two groups after treatment (all P?<?0.05), and the improvement in group A was superior to that in group B (all P?<?0.05).

Conclusion

The curative effect of comprehensive ying needling therapy for treatment of mumps was superior to that of conventional western medicine therapy.  相似文献   

13.

Objective

To explore influence of electroacupuncture (EA) therapy of tonifying the kidney and regulating governor vessel on amyloid beta (Aβ) related degradation enzymes in the hippocampus of a rat model of Alzheimer's disease (AD) induced by Aβ1-42.

Methods

Forty Wistar male rats were randomly divided into 4 groups: a normal group, a sham operation group, a model group and an EA group, 10 rats in each one. The rats in normal group were normally fed. The rats in sham operation group were bilaterally injected in the hippocampus with 5 µL of saline and they were normally fed after the injection. The rats in the model group and the EA group were bilaterally injected in the hippocampus with 5 µL of Aβ1-42 on each side. Rats in the EA group received EA of 5?Hz continuous wave at the “B?ihuì (百会 GV20)” and bilateral “Shènshū (肾俞 BL23)” for a duration of 15 min per time every day and continuously for 15 days. After 15 days, the hippocampal expression levels of insulin degrading enzyme (IDE), lipoprotein (LPL), transthyretin (TTR), apolipoprotein E (APoE), α2 macroglobulin (α2M) and Aβ1-42 of the 4 groups were tested by Western blot.

Results

Compared with the sham operation group, the expression levels of IDE, LPL, TTR, APoE and α2M in the hippocampus were significantly lower (P?<?0.05, P?<?0.01) and the expression of Aβ1-42 was significantly higher(P?<?0.01) in the model group. Compared with the model group, the expression levels of IDE, LPL, TTR, APoE and α2M in the hippocampus of these rats were significantly lower (P?<?0.05, P?<?0.01), the expression of Aβ1-42 was significantly higher(P?<?0.01) in the EA group.

Conclusion

EA therapy of tonifying the kidney and regulating governor vessel can enhance the expression of IDE, LPL, TTR, APoE, and α2M in the hippocampus of AD rats injected by Aβ1-42, and may consequently promote the degradation of aβ1-42 to help improve the pathological manifestations of AD and therefore delay its progression.  相似文献   

14.

Objective

To observe the effect of acupuncture at Jǐngjiājǐ (颈夹脊) on the repair and regeneration of cochlear hair cells of guinea pigs with sensorineural deafness.

Methods

Sixty healthy guinea pigs were selected, 20 guinea pigs were randomly assigned to the normal control group (group A), and other guinea pigs were randomly divided into model control group (group B) and acupuncture treatment group (group C) after injection with gentamicin sulfate in order to induce deafness. No intervention was given to the guinea pigs in group A and group B, and acupuncture at Jǐngjiājǐ was given to the guinea pigs in group C for 30 days. ABR threshold, DPOAE amplitudes and hair cells counting of guinea pigs in each group were recorded after intervention for 30 days.

Results

After intervention for 30 days, ABR threshold in group C was significantly lower than that in group B (38.46?±?7.36?vs 82.94?±?6.47, P<0.01), and the DPOAE amplitudes in group C were obviously higher than that in group B (28.06?±?5.64?vs 25.23?±?5.38, P<0.01). The number of cochlear hair cells in group C increased significantly, over 50% of the hair cells survived, accounting for 66.67% of the observation cases. The number of cochlear hair cells in the 3rd and 4th gyri was close to the normal level, and plenty of proliferous sustentacular cells can be seen. Compared with group B, the number of cochlear outer hair cells in each gyrus in group C significantly increased (36.76?±?1.97?vs 28.59?±?2.24, P<0.01), indicating that acupuncture at Jǐngjiājǐ can promote the repair and regeneration of cochlear hair cells.

Conclusion

Acupuncture at Jǐngjiājǐ can promote the repair and regeneration of cochlear hair cells, thus improving the hearing of guinea pigs with deafness.  相似文献   

15.

Objective

To observe the effect of thermosensitive moxibustion on anxiety and depression in the patients of insomnia differentiated as liver qi stagnation.

Methods

From January 2015 to January 2017, 60 patients of insomnia differentiated as liver qi stagnation were collected in Shijiazhuang Municipal Chinese Medicine Hospital. According to the random number table, the patients were randomized into a moxibustion group (30 cases) and an estazolam group (30 cases). In the moxibustion group, the thermosensitive moxibustion was adopted alternatively to the bilateral yuan-source points of the liver and gallbladder meridians. In the estazolam group, estazolam, 1?mg was prescribed for oral administration before sleep every day. After 15-day treatments, the sleep quality, the severity of anxiety and depression and the therapeutic effects were observed before and after treatment in the two groups.

Results

Before treatment, the differences were not significant in the scores of Pittsburgh sleep quality index (PSQI), the self-rating anxiety scale (SAS) and the self-rating depression scale (SDS) between the two groups (all P?>?0.05). After treatment, the scores of PSQI, SAS and SDS were all reduced remarkably as compared with those before treatment in the two groups (all P?<?0.05). PSQI score was (6.72?±?2.311) points in the moxibustion group and was (5.37?±?2.621) points in the estazolam group. SAS score was (31.76?±?6.511) points in the moxibustion group and was (39.62?±?4.371) points in the estazolam group. SDS score was (35.98?±?5.161) points in the moxibustion group and was (46.38?±?4.971) points in the estazolam group. After treatment, the scores of PSQI, SAS and SDS in the moxibustion group were reduced more remarkably as compared with the estazolam group, indicating the significant differences (all P?<?0.05). After treatment, the scores of sleep efficacy and TCM symptoms were (72.65?±?14.36) points and (69.36?±?4.28) points respectively in the moxibustion group, better than the estazolam group, indicating the significant differences (all P?<?0.05).

Conclusion

The thermosensitive moxibustion at the yuan-source points of the liver and gallbladder meridians significantly improves the sleep quality, relieves the symptoms of anxiety and depression and enhances the therapeutic effects in the patients of insomnia differentiated as liver qi stagnation. Hence, this therapy deserves to be recommended in clinical practice.  相似文献   

16.

Objective

To observe the influence of acupuncture stimulus and thermal stimulus on the expression of mast cells (MCs) and 5-hydroxytryptamine (5-HT) in local acupoint area of Guānyuan (关元 CV 4) and serum 5-HT in rats.

Methods

Thirty-nine male C57BL/6 rats were randomly divided into blank control group, acupuncture stimulus group and thermal stimulus group, with 13 rats in each group. The rats were stimulated by manual acupuncture at CV 4 for 5?min in acupuncture stimulus group, while those in thermal stimulus group were stimulated by adopting a thermal moxibustion apparatus on CV 4 for 30?min. The expression of MC and 5-HT in the skin in the acupoint area of CV 4 before and after acupuncture stimulus and thermal stimulus was observed and analyzed via adopting toluidine blue staining method and immunofluorescence histochemical method (5 rats were selected from each group), and the 5-HT content in serum before and after stimulus was determined through enzyme-linked immunosorbent assay (ELISA) (8 rats were selected from each group). The influence of acupuncture stimulus and thermal stimulus on the contents of MC and 5-HT in the skin and serum 5-HT in rats was analyzed and compared.

Results

① After acupuncture stimulus or thermal stimulus on CV 4 of C57BL/6 rats, the number of MC in the acupoint area significantly increased when compared with that in blank group (the acupuncture stimulus group 12.40?±?2.07 vs. the blank group 3.00?±?5.96; thermal stimulus group 26.20?±?10.85 vs. the blank group 12.40?±?2.07, both P?<?0.05), and MC aggregation and degranulation were observed (the acupuncture stimulus group 17.80?±?4.55 vs. the blank group 8.00?±?3.16; the thermal stimulus group 24.00?±?9.05 vs. the blank group 8.00?±?3.16, P?<?0.05, P?<?0.01). ② After acupuncture stimulus or thermal stimulus, 5-HT was released by MCs in the acupoint area, which aggregated around the blood vessels, and the number of 5-HT in the acupoint area significantly increased when compared with that in blank group (the blank group 3.00?±?1.28 vs. the acupuncture stimulus group 10.02?±?3.21; the blank group 3.00?±?1.28 vs. the thermal stimulus group 14.00?±?3.94, both P?<?0.01). ③ Compared with blank group, both acupuncture stimulus and thermal stimulus could reduce the 5-HT content in serum (the blank group 0.72?±?0.2372 vs. acupuncture stimulus group 0.43?±?0.21; the blank group 0.72?±?0.24 vs. thermal stimulus group 0.32?±?0.18, both P?<?0.01), and the effect in thermal stimulus group was slightly superior to that in acupuncture stimulus group (P?<?0.05).

Conclusion

Both acupuncture stimulus and thermal stimulus can cause the aggregation and degranulation of MCs and high expression of 5-HT in the acupoint area. The effect of thermal stimulus was superior to that of acupuncture stimulus in degranulation.  相似文献   

17.
目的 制备共同时递送紫杉醇-油酸前药(PTX-OA)和鸦胆子油(BJO)的分子配型纳米乳制剂(CMNEs)。方法 对基于分子配型组装技术的紫杉醇-油酸/鸦胆子油纳米乳制剂体外对HepG2细胞的抑制、细胞周期、细胞凋亡和体内抑制裸鼠肿瘤生长的评价。结果 紫杉醇-油酸/鸦胆子油纳米乳(PTX-OA/BJO CMNEs)粒径为108.7 2.3 nm,包封率> 95%。PTX-OA/BJO CMNEs对HepG-2细胞的毒性作用有浓度和时间依赖性,细胞周期试验表明PTX-OA/BJO CMNEs增加了G2/M期阻滞。注射PTX-OA/BJO CMNEs后的裸鼠模型中,对比注射生理盐水组,裸鼠肿瘤体积明显减少 (P<0.05),表明PTX-OA/BJO CMNEs在体内有很好抗肿瘤效果。进一步研究发现,PTX-OA/BJO CMNEs的抗肿瘤作用增强与诱导肿瘤细胞凋亡的能力有关,尤其是PTX-OA/BJO CMNEs可明显抑制肿瘤细胞的增殖和TOPO II的活性。结论 不同机制的两种药物联合给药能同时阻断不同的抗癌途径,从而提高治疗反应,降低毒性。  相似文献   

18.

Objective

To investigate the efficacy and mechanism of EGDT against NPC cell lines.

Methods

MTT assay was used to assess cell proliferation inhibition of EGDT. The apoptotic induction and cell cycle arrest were detected by flow cytometry. Western blot was adopted to detect the protein levels. Quantitative Real-time PCR was used to determine the mRNA expressions. The NPC xenografts were established to evaluate the tumor growth inhibition of EGDT. Immunohistochemistry was applied to analyze the EGFR expression in the tumor tissues.

Results

EGDT showed proliferation inhibition on the NPC cell, induced G0/G1 phase arrest and cell apoptosis in vitro. EGDT decreased the protein and mRNA levels of EGFR and its downstream RAF/MEK/ERK and PI3K/AKT pathways in time- and dose-dependent manner. Furthermore, EGDT also showed a sound antitumor activity in NPC xenograft in vivo.

Conclusion

The treatment of EGDT displays EGFR and its mediated downstream signaling pathway blockade through decreasing the protein and mRNA levels, suggesting a promising strategy in treating human NPC.  相似文献   

19.
目的:研究桑白皮(Morus alba)的化学成分及其α-葡萄糖苷酶抑制和DPPH自由基清除活性方法:采用硅胶、凝胶柱色谱和制备HPLC等方法进行分离纯化,通过高分辨质谱和核磁鉴定化合物结构结果:从桑白皮提取物中分离得到了13个化合物,其中化合物1,3和8表现出显著的α-葡萄糖苷酶抑制活性,IC50值分别为147.1 ± 1.1,314.1 ± 0.8和207.6 ± 0.1 µM,均低于阳性对照阿卡波糖(418.6 ± 0.1 µM)。化合物10和11均表现出良好的DPPH自由基清除活性,EC50值分别为2.9 ± 0.1和5.0 ± 0.1 µM,均低于阳性对照维生素C的EC50值(54.8 ± 0.1 µM)结论:化合物1、3和8的α-葡萄糖苷酶抑制活性为首次测定。  相似文献   

20.
目的 本研究首次对Sheng-Yangfei-Capsules(SGYC)对博莱霉素致大鼠肺损伤和纤维化的抗纤维化作用进行了研究。方法 将动物随机分为6组,在博来霉素造模给药后第7,14和28天处死动物,并分别取肺组织。对于肺损伤和纤维化进行组织学评估,肺标本进行了HE和Masson染色。对各组动物的体重进行了测定并计算肺重量指数,对单核细胞中单胺氧化酶(MAO)和转化生长因子-β1(TGF-β1)的浓度进行了测定。结果 SGYC能够降低博莱霉素诱导肺纤维化大鼠的体重和肺重量指数。病理学证据表明SGYC能够降低博莱霉素诱导的肺纤维化和巩固。 SGYC可降低肺组织中的MAO和TGF-β1活性。结论 这些发现表明,SGYC可能是一种有希望的候选物,可防止博来霉素诱导的肺损伤或其他间质病变。  相似文献   

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