排序方式: 共有65条查询结果,搜索用时 0 毫秒
1.
目的:探讨补肾益精中药复方对转化生长因子-β1(transforming growth factor-β1,TGF-β1)诱导的内皮间质转化的作用及机制。方法:TGF-β1诱导人脐静脉细胞(human umbilical vein endothelial cell,HUVEC)构建内皮间质转化模型,分别用对照血清、补肾益精复方含药血清、黄芪甲苷、Fli1 siRNA+含药血清干预模型,显微镜检测HUVEC细胞内皮间质转化过程,实时荧光定量聚合酶链式反应(quantitative polymerase chain reaction,QPCR)法检测各组VE-cadherin、FSP1、Fli1的表达。结果:①经TGF-β1诱导后,细胞形态呈现纤维化改变,VE-cadherin表达降低,FSP1表达升高,提示内皮间质转化模型诱导成功;同时Fli1在内皮间质转化模型中为低表达。②采用Fli1 siRNA干扰设计Fli1 siRNA序列,显示Fli1 siRNA-1明显抑制Fli1 mRNA表达,同时VE-cadherin表达明显下降,FSP1表达明显上升。③黄芪甲苷组、补肾益精复方含药血清组中Fli1、VE-cadherin的表达较内皮间质转化模型组升高,FSP1表达降低,提示血管内皮间质得到改善;Fli1siRNA+含药血清组较含药血清组Fli1下降、VE-cadherin下降、FSP1上升,其改善不如单独含药血清组明显。结论:补肾益精法中药复方可改善硬皮病血管内皮间质转化,其机制可能与上调Fli1有关。 相似文献
2.
3.
Objective To explore the role of mouse dermis-derived mesenchymal stem cells (mdMSC) on skin repair. Methods mdMSC and human dermal fibroblasts were isolated and identified. Human dermal fibroblasts were cultured alone or eoeultured with mdMSC in Transwell chambers with the density ratio of human dermal fibroblasts to mdMSC being 2/5, 1/1, and 2/1. On day 4 and 8 of culture, the expression levels of hydroxyproline and transforming growth factor-beta (TGF-beta) 1 were measured in the supematant of monoculture and coculture by alkaline hydrolysis and ELISA respectively. Results The level of hydro-xyproline was significantly higher in the supematants of coculture system with a density ratio of 2/5 and 1/1 than that in monoculture supematants of human dermal fibroblasts on day 8 (both P < 0.05). Elevated level of TGF-betal was observed in all coculture supematants on day 8 (all P < 0.01) and in the supernatants of coculture system with a density ratio of 1/1 on day 4 (P < 0.05). There was no significant correlation between the expression level of TGF-betal and hydroxyproline in the coculture supernatants (r = 0.108, P > 0.05). Conclusion In vitro coculture with mdMSC can increase the production of hydroxyproline and TGF-betal by fibroblasts, which may be a mechanism underlying the facilitation of skin repair by mdMSC. 相似文献
4.
Objective To explore the role of mouse dermis-derived mesenchymal stem cells (mdMSC) on skin repair. Methods mdMSC and human dermal fibroblasts were isolated and identified. Human dermal fibroblasts were cultured alone or eoeultured with mdMSC in Transwell chambers with the density ratio of human dermal fibroblasts to mdMSC being 2/5, 1/1, and 2/1. On day 4 and 8 of culture, the expression levels of hydroxyproline and transforming growth factor-beta (TGF-beta) 1 were measured in the supematant of monoculture and coculture by alkaline hydrolysis and ELISA respectively. Results The level of hydro-xyproline was significantly higher in the supematants of coculture system with a density ratio of 2/5 and 1/1 than that in monoculture supematants of human dermal fibroblasts on day 8 (both P < 0.05). Elevated level of TGF-betal was observed in all coculture supematants on day 8 (all P < 0.01) and in the supernatants of coculture system with a density ratio of 1/1 on day 4 (P < 0.05). There was no significant correlation between the expression level of TGF-betal and hydroxyproline in the coculture supernatants (r = 0.108, P > 0.05). Conclusion In vitro coculture with mdMSC can increase the production of hydroxyproline and TGF-betal by fibroblasts, which may be a mechanism underlying the facilitation of skin repair by mdMSC. 相似文献
5.
Objective To explore the role of mouse dermis-derived mesenchymal stem cells (mdMSC) on skin repair. Methods mdMSC and human dermal fibroblasts were isolated and identified. Human dermal fibroblasts were cultured alone or eoeultured with mdMSC in Transwell chambers with the density ratio of human dermal fibroblasts to mdMSC being 2/5, 1/1, and 2/1. On day 4 and 8 of culture, the expression levels of hydroxyproline and transforming growth factor-beta (TGF-beta) 1 were measured in the supematant of monoculture and coculture by alkaline hydrolysis and ELISA respectively. Results The level of hydro-xyproline was significantly higher in the supematants of coculture system with a density ratio of 2/5 and 1/1 than that in monoculture supematants of human dermal fibroblasts on day 8 (both P < 0.05). Elevated level of TGF-betal was observed in all coculture supematants on day 8 (all P < 0.01) and in the supernatants of coculture system with a density ratio of 1/1 on day 4 (P < 0.05). There was no significant correlation between the expression level of TGF-betal and hydroxyproline in the coculture supernatants (r = 0.108, P > 0.05). Conclusion In vitro coculture with mdMSC can increase the production of hydroxyproline and TGF-betal by fibroblasts, which may be a mechanism underlying the facilitation of skin repair by mdMSC. 相似文献
6.
报告类脂质渐进性坏死1例。患者女,68岁,因右下肢胫前斑块2年就诊。皮肤专科检查:右下肢胫前可见一大小约10 cm×3 cm黄棕色斑块,边界清楚,表面光滑有光泽,可见毛细血管扩张和褐色斑,上覆鳞屑,上下端皮损中央萎缩凹陷,上见痂,质硬,无压痛。皮损组织病理检查:表皮轻度萎缩,真皮见胶原变性灶,周围组织细胞呈栅栏状排列,真皮浅深层毛细血管增生,管壁增厚,血管周围淋巴细胞、浆细胞、组织细胞及多核巨细胞浸润。实验室检查:血、尿、大便常规、肝肾功能正常,口服葡萄糖耐量试验提示糖耐量异常,糖化血红蛋白正常。诊断:类脂质渐进性坏死。予铒点阵激光(2 940 nm)联合卤米松/三氯生乳膏外用,皮损较前消退,目前仍在随访中。 相似文献
7.
目的观察补肾生发方联合非那雄胺治疗脂溢性脱发的临床疗效。方法将127例患者随机分为两组,治疗组63例给予补肾生发方联合非那雄胺片治疗,对照组64例给予六味地黄丸和非那雄胺片治疗。结果治疗组显著改善13例,中度改善19例,轻度改善27例,无变化4例,总有效率93.65%;对照组显著改善9例,中度改善12例,轻度改善24例,无变化19例,总有效率70.31%,两组总有效率比较差异有统计学意义(P0.05)。对治疗前后两组头发油腻程度、头皮屑数量以及头痒等伴随症状改善情况进行比较,治疗组均明显优于对照组,差异有统计学意义(P0.05)。结论补肾生发方联合非那雄胺治疗脂溢性脱发在临床疗效及伴随症状改善方面均明显优于对照组,差异有统计学意义,值得临床推广。 相似文献
8.
9.
10.
目的:探索在医学生皮肤性病学教学中开展课程思政教育的认可度及优势。方法:通过调查问卷形式了解学生对皮肤性病学课程设计的课程思政方式及元素的接受程度。结果:在被调查的35名学生中,对是否支持皮肤性病学教学中开展课程思政教育、开展课程思政教育是否对皮肤性病学教学有意义、授课中讲述的思政教育事例是否适合皮肤性病学教学内容、是否加深了对相关专业知识点的认识和理解、您是否认可授课中的思政事例类型5个选项认可的学生分别为30,29,32,31,30名。结论:开展课程思政教育是对新时代党的教育方针的贯彻落实,是对加强高校思想政治工作要求的回应,将其贯穿于皮肤性病学教学全过程,可以发挥专业课程育人的渠道作用。 相似文献