目的:探究电刺激生物反馈对产后盆底功能障碍(pelvic floor dysfunctional disease,PFD)患者盆底肌力、盆底肌电位及基质金属蛋白酶-2(matrix metalloproteinase-2,MMP-2)、基质金属蛋白酶组织抑制因子-2(tissue inhibitor of metallopr...目的:探究电刺激生物反馈对产后盆底功能障碍(pelvic floor dysfunctional disease,PFD)患者盆底肌力、盆底肌电位及基质金属蛋白酶-2(matrix metalloproteinase-2,MMP-2)、基质金属蛋白酶组织抑制因子-2(tissue inhibitor of metalloproteinase-2,TIMP-2)、转化生长因子-β1(transforming growth factor-β1,TGF-β1)水平的影响。方法:选取2019年9月至2020年9月海南省妇女儿童医学中心收治的150例产后PFD患者,随机分为3组,每组各50例。其中A组给予Kegel盆底肌训练,B组给予电刺激生物反馈治疗,C组给予Kegel盆底肌训练联合电刺激生物反馈治疗,时间为3个月。对比3组临床疗效及治疗前后的盆底肌力、盆底肌电位、盆腔器官脱垂(pelvic organ prolapse,POP)-Q分期、性生活质量,并检测盆腔壁组织中MMP-2、TIMP-2、TGF-β1表达水平。结果:C组治疗总有效率为92.00%,高于A组(70.00%)和B组(76.00%),差异有统计学意义(P<0.05)。治疗后,C组盆底手测肌力及I类、II类纤维肌最大电位值均显著高于A组、B组(P<0.05),且B组显著高于A组(P<0.05)。治疗后,C组POP-Q分期等级与A组、B组相比明显降低(P<0.05),B组POP-Q分期等级与A组相比,差异无统计学意义(P>0.05)。治疗后,A组、B组、C组盆腔器官脱垂-尿失禁性功能问卷(Pelvic Organ Prolapse/Incontinence Sexual Function Questionnaire-12,PISQ-12)评分分别为26.34±5.67、28.96±5.31、32.88±5.29,差异有统计学意义(P<0.05)。治疗后,C组MMP-2水平显著低于A组、B组(P<0.05),TIMP-2、TGF-β1水平显著高于A组、B组(P<0.05),且B组各指标变化优于A组(P<0.05)。结论:电刺激生物反馈治疗产后PFD疗效显著,能够增强患者盆底肌力,改善患者性生活质量。展开更多
Background Excessive deposition of extraceUular matrix （ECM） in the kidney is the hallmark of diabetic nephropathy. Increased matrix synthesis has been well documented but the effects of diabetes on degradative path...Background Excessive deposition of extraceUular matrix （ECM） in the kidney is the hallmark of diabetic nephropathy. Increased matrix synthesis has been well documented but the effects of diabetes on degradative pathways, particularly in the in vivo setting. The renal protective effect of these pathways on matrix accumulation has not been fully elucidated. The present study was understaken to investigate the activity of matrix metalloproteinase-2 （MMP-2）, the expression of MMP-2 and tissue inhibitor of metalloproteinase-2 （TIMP-2） in kidney tissues of diabetic rats, and to explore the degradative pathway of type Ⅳ collagen （Ⅳ-C） and the renal protective effects of ACE inhibition- benazepril.展开更多
OBJECTIVE:To study the effect of Lichong decoction(LD) on expression of matrix metalloproteinase-2(MMP-2) and metalloproteinase-2(TIMP-2) in a rat model of uterine leiomyoma(UL).METHODS:UL was induced in rats using ex...OBJECTIVE:To study the effect of Lichong decoction(LD) on expression of matrix metalloproteinase-2(MMP-2) and metalloproteinase-2(TIMP-2) in a rat model of uterine leiomyoma(UL).METHODS:UL was induced in rats using exogenous estrogen and progesterone.LD was administered(p.o.) for 4 weeks,and mifepristone(RU-486)used as a control.To observe the effect of LD on the uterine coefficient and uterine transverse diameter,a radioimmunoassay method was used to detect serum levels of sex hormones.Light microscopic analyses of pathologic changes in the tissues of UL rats were evaluated.Expression of the proteins of matrix metalloproteinases(MMPs) and tissue inhibitors of metalloproteinases(TIMPs) in uterine tissues was assessed by immunohistochemical staining and western blotting.RESULTS:A UL model in rats was established successfully.LD reduced uterine weight,uterine coefficient,and uterine transverse diameter compared with untreated controls.LD reduced levels of estradiol,progesterone,follicle-stimulating hormone,and luteinizing hormone in our UL models.LD improved the pathologic condition of uterine muscle.Expression of MMP-2 protein decreased to varying extents in LD-treated groups,but TIMP-2 levels were enhanced.LD appears to reduce MMP-2 expression and increase TIMP-2 expression in UL tissue.CONCLUSION:These data suggest that the mechanism of action of LD on ULs may involve reduction of MMP-2 expression and increase in TIMP-2 expression in rats.展开更多
目的探讨基质金属蛋白酶2(matrix metalloproteinase-2,MMP-2)及金属蛋白酶2组织抑制因子(tissue inhibitor of metalloproteinase-2,TIMP-2)与原发性青光眼合并2型糖尿病的关系。方法研究对象分A组、B组、C组、D组、E组、F组6组,每组3...目的探讨基质金属蛋白酶2(matrix metalloproteinase-2,MMP-2)及金属蛋白酶2组织抑制因子(tissue inhibitor of metalloproteinase-2,TIMP-2)与原发性青光眼合并2型糖尿病的关系。方法研究对象分A组、B组、C组、D组、E组、F组6组,每组30眼。A组为原发性开角型青光眼(primary open angle glaucoma,POAG)组,B组为原发性闭角型青光眼(primary angle closure glaucoma,PACG)组,C组为POAG合并2型糖尿病组,D组为PACG合并2型糖尿病组,E组为糖尿病性白内障组,F组为年龄相关性白内障组。采用酶联免疫吸附试验检测各组房水及血清中TIMP-2及MMP-2的含量,并计算TIMP-2/MMP-2值。结果在6组研究对象的房水中,MMP-2浓度在A组为(24.92±6.62)μg·L-1、B组为(36.80±15.07)μg·L-1、D组为(28.44±5.78)μg·L-1,均较F组的(22.87±3.54)μg·L-1显著升高(均为P<0.05);同时房水中TIMP-2浓度在A组为(43.92±19.57)μg·L-1、B组为(76.13±27.67)μg·L-1、D组为(61.92±6.51)μg·L-1,也均较F组的(22.48±3.56)μg·L-1显著升高(均为P<0.05)。A、B、C、D组房水中TIMP-2/MMP-2值较E组和F组显著提高,约为其2倍,但A组、B组、C组、D组间TIMP-2/MMP-2值无显著性差异。在6组研究对象的血清中,A组MMP-2和TIMP-2浓度最高,分别为(396.75±49.30)μg·L-1和(337.67±62.78)μg·L-1,其余各组间MMP-2和TIMP-2浓度无显著性差异。6组研究对象血清中TIMP-2/MMP-2值无明显差异。结论原发性青光眼患者中TIMP-2/MMP-2值均存在失衡,说明MMP-2的活性变化及TIMP-2/MMP-2值与POAG和PACG的发病密切相关,但2型糖尿病对原发性青光眼的病程进展无明显影响。展开更多
目的:使用补肾通脉汤对兔动脉粥样硬化(atherosclerosis,AS)造模过程进行干预,通过对AS斑块内基质金属蛋白酶-2(matrix metalloproteinase-2,MMP-2)和其基质金属蛋白酶抑制物-2(tissue inhibitor of metalloproteinase-2,TIMP-2)表达的...目的:使用补肾通脉汤对兔动脉粥样硬化(atherosclerosis,AS)造模过程进行干预,通过对AS斑块内基质金属蛋白酶-2(matrix metalloproteinase-2,MMP-2)和其基质金属蛋白酶抑制物-2(tissue inhibitor of metalloproteinase-2,TIMP-2)表达的进行检测,探讨补肾通脉汤阻碍AS进展、稳定AS斑块的机制。方法:选取健康新西兰雄性大耳白兔40只,随机分成4组,空白对照组(CG),模型组(MG),补肾通脉组(BSG),阿托伐他汀组(ACG),每组10只,高脂饲料喂养及牛血清白蛋白耳缘静脉注射制作动脉粥样硬化模型,免疫组化法检测斑块内MMP-2和TIMP-2在斑块内的表达的阳性细胞面积。结果:与CG组比较,MG组、BSG组、ACG组MMP-2和TIMP-2表达均有显著升高(P<0.001);与MG组比较,BSG组、ACG组MMP-2和TIMP-2表达均有显著降低(P<0.001,P<0.01),BSG组与ACG组MMP-2和TIMP-2表达无明显区别(P>0.05)。结论:补肾通脉汤可以通过调节MMP-2和TIMP-2在兔AS模型斑块内的表达,有效阻碍AS进展、稳定AS斑块。展开更多
文摘目的:探究电刺激生物反馈对产后盆底功能障碍(pelvic floor dysfunctional disease,PFD)患者盆底肌力、盆底肌电位及基质金属蛋白酶-2(matrix metalloproteinase-2,MMP-2)、基质金属蛋白酶组织抑制因子-2(tissue inhibitor of metalloproteinase-2,TIMP-2)、转化生长因子-β1(transforming growth factor-β1,TGF-β1)水平的影响。方法:选取2019年9月至2020年9月海南省妇女儿童医学中心收治的150例产后PFD患者,随机分为3组,每组各50例。其中A组给予Kegel盆底肌训练,B组给予电刺激生物反馈治疗,C组给予Kegel盆底肌训练联合电刺激生物反馈治疗,时间为3个月。对比3组临床疗效及治疗前后的盆底肌力、盆底肌电位、盆腔器官脱垂(pelvic organ prolapse,POP)-Q分期、性生活质量,并检测盆腔壁组织中MMP-2、TIMP-2、TGF-β1表达水平。结果:C组治疗总有效率为92.00%,高于A组(70.00%)和B组(76.00%),差异有统计学意义(P<0.05)。治疗后,C组盆底手测肌力及I类、II类纤维肌最大电位值均显著高于A组、B组(P<0.05),且B组显著高于A组(P<0.05)。治疗后,C组POP-Q分期等级与A组、B组相比明显降低(P<0.05),B组POP-Q分期等级与A组相比,差异无统计学意义(P>0.05)。治疗后,A组、B组、C组盆腔器官脱垂-尿失禁性功能问卷(Pelvic Organ Prolapse/Incontinence Sexual Function Questionnaire-12,PISQ-12)评分分别为26.34±5.67、28.96±5.31、32.88±5.29,差异有统计学意义(P<0.05)。治疗后,C组MMP-2水平显著低于A组、B组(P<0.05),TIMP-2、TGF-β1水平显著高于A组、B组(P<0.05),且B组各指标变化优于A组(P<0.05)。结论:电刺激生物反馈治疗产后PFD疗效显著,能够增强患者盆底肌力,改善患者性生活质量。
基金This study was supported by a grant from the Natural Science Foundation of Shandong Province (No. Y2002C35).
文摘Background Excessive deposition of extraceUular matrix （ECM） in the kidney is the hallmark of diabetic nephropathy. Increased matrix synthesis has been well documented but the effects of diabetes on degradative pathways, particularly in the in vivo setting. The renal protective effect of these pathways on matrix accumulation has not been fully elucidated. The present study was understaken to investigate the activity of matrix metalloproteinase-2 （MMP-2）, the expression of MMP-2 and tissue inhibitor of metalloproteinase-2 （TIMP-2） in kidney tissues of diabetic rats, and to explore the degradative pathway of type Ⅳ collagen （Ⅳ-C） and the renal protective effects of ACE inhibition- benazepril.
基金Supported by National Natural Science Fund(Study on the Action Mechanism of Inhibition of Uterine Leiomyoma of Regulation of Lichong Decoction for Ang-Tie-2 Transduction Pathway,No.81373812Research on the Regulating Mechanism of the Inhibitory Effect of Nourishing Healthy Qi and Eliminating Blood Stasis Chinese Medicine on Extracellular Matrix Metabolize in Uterine Leiomyoma,No.81073096)
文摘OBJECTIVE:To study the effect of Lichong decoction(LD) on expression of matrix metalloproteinase-2(MMP-2) and metalloproteinase-2(TIMP-2) in a rat model of uterine leiomyoma(UL).METHODS:UL was induced in rats using exogenous estrogen and progesterone.LD was administered(p.o.) for 4 weeks,and mifepristone(RU-486)used as a control.To observe the effect of LD on the uterine coefficient and uterine transverse diameter,a radioimmunoassay method was used to detect serum levels of sex hormones.Light microscopic analyses of pathologic changes in the tissues of UL rats were evaluated.Expression of the proteins of matrix metalloproteinases(MMPs) and tissue inhibitors of metalloproteinases(TIMPs) in uterine tissues was assessed by immunohistochemical staining and western blotting.RESULTS:A UL model in rats was established successfully.LD reduced uterine weight,uterine coefficient,and uterine transverse diameter compared with untreated controls.LD reduced levels of estradiol,progesterone,follicle-stimulating hormone,and luteinizing hormone in our UL models.LD improved the pathologic condition of uterine muscle.Expression of MMP-2 protein decreased to varying extents in LD-treated groups,but TIMP-2 levels were enhanced.LD appears to reduce MMP-2 expression and increase TIMP-2 expression in UL tissue.CONCLUSION:These data suggest that the mechanism of action of LD on ULs may involve reduction of MMP-2 expression and increase in TIMP-2 expression in rats.
文摘目的:使用补肾通脉汤对兔动脉粥样硬化(atherosclerosis,AS)造模过程进行干预,通过对AS斑块内基质金属蛋白酶-2(matrix metalloproteinase-2,MMP-2)和其基质金属蛋白酶抑制物-2(tissue inhibitor of metalloproteinase-2,TIMP-2)表达的进行检测,探讨补肾通脉汤阻碍AS进展、稳定AS斑块的机制。方法:选取健康新西兰雄性大耳白兔40只,随机分成4组,空白对照组(CG),模型组(MG),补肾通脉组(BSG),阿托伐他汀组(ACG),每组10只,高脂饲料喂养及牛血清白蛋白耳缘静脉注射制作动脉粥样硬化模型,免疫组化法检测斑块内MMP-2和TIMP-2在斑块内的表达的阳性细胞面积。结果:与CG组比较,MG组、BSG组、ACG组MMP-2和TIMP-2表达均有显著升高(P<0.001);与MG组比较,BSG组、ACG组MMP-2和TIMP-2表达均有显著降低(P<0.001,P<0.01),BSG组与ACG组MMP-2和TIMP-2表达无明显区别(P>0.05)。结论:补肾通脉汤可以通过调节MMP-2和TIMP-2在兔AS模型斑块内的表达,有效阻碍AS进展、稳定AS斑块。
