目的:观察针刺结合乳乐冲剂对乳腺增生(MGH)大鼠乳房组织、泌乳素(PRL)及其受体(PRLR)表达的影响,探讨其作用机制,为临床治疗MGH提供参考。方法:将55只雌性SD大鼠随机分为空白组、模型组、针刺组、乳乐组、针药组。除空白组外,其余各组...目的:观察针刺结合乳乐冲剂对乳腺增生(MGH)大鼠乳房组织、泌乳素(PRL)及其受体(PRLR)表达的影响,探讨其作用机制,为临床治疗MGH提供参考。方法:将55只雌性SD大鼠随机分为空白组、模型组、针刺组、乳乐组、针药组。除空白组外,其余各组均采用外源性雌、孕激素联合刺激制作大鼠MGH模型。造模成功后第1天起各治疗组开始施予相应治疗方法。针刺组取甲(天宗、肝俞、足三里)、乙(屋翳、合谷、膻中)两组穴,每次针刺一组穴,两组穴交替;乳乐组灌服乳乐冲剂(柴胡疏肝散化裁),每次3 m L;针药组先行中药灌服(同乳乐组),再予针刺(同针刺组),均每日1次。连续治疗30 d后腹主动脉采血,采用酶联免疫分析(ELISA)法检测血清PRL;光镜下观察乳腺组织苏木素-伊红(HE)染色切片和SABC免疫组化法PRLR阳性表达情况。结果:模型组大鼠乳房组织形态学符合增生表现,与空白组比较,血清PRL含量及PRLR阳性表达显著增高(均P<0.01);与模型组比较,各治疗组大鼠乳腺组织增生均明显改善,PRL水平及PRLR阳性表达显著降低(P<0.05,P<0.01),其中针药组改善最为明显(均P<0.05)。结论:针刺、乳乐冲剂、针药结合治疗MGH均有效,其机制可能是通过降低血清PRL水平,抑制PRL与PRLR的结合,间接抑制雌二醇水平,从而使增生的乳腺得以复旧。相对于单纯针刺和口服乳乐冲剂,针药结合方案总体疗效更佳。展开更多
[ Objective] To investigate the feasibility of the primary culture of bovine mammary epithelial cells in biochemical incubator. [ Method] In vitro, bovine mammary epithelial cells were isolated and cultured by the tis...[ Objective] To investigate the feasibility of the primary culture of bovine mammary epithelial cells in biochemical incubator. [ Method] In vitro, bovine mammary epithelial cells were isolated and cultured by the tissue explant method in order to investigate the optimal culture conditions. The morphology observation and identification of the cultured cells were performed by inverted microscope observation, Giemsa staining and cytokeratin immunohistochemistry. [ Result] Observed with inverted microscope, most of the bovine mammary epithelial cells were polygonal and displayed typical slabstone-like appearance. As it can be seen from cell staining results, the cell body was big and the nucleus was stained dark blue and was round or oval in shape, with clearly visible nucleoli, generally 2 -4 nucleoli. The tissue-specific expression of cytokeratin 14 and cytokeratin 18 genes in mammary epithelial cells was identified by cytokeratin immunohistochemistry. [ Conclusion] Primary bovine mammary epithelial cells were successfully cultured in biochemical incubator.展开更多
文摘目的:观察针刺结合乳乐冲剂对乳腺增生(MGH)大鼠乳房组织、泌乳素(PRL)及其受体(PRLR)表达的影响,探讨其作用机制,为临床治疗MGH提供参考。方法:将55只雌性SD大鼠随机分为空白组、模型组、针刺组、乳乐组、针药组。除空白组外,其余各组均采用外源性雌、孕激素联合刺激制作大鼠MGH模型。造模成功后第1天起各治疗组开始施予相应治疗方法。针刺组取甲(天宗、肝俞、足三里)、乙(屋翳、合谷、膻中)两组穴,每次针刺一组穴,两组穴交替;乳乐组灌服乳乐冲剂(柴胡疏肝散化裁),每次3 m L;针药组先行中药灌服(同乳乐组),再予针刺(同针刺组),均每日1次。连续治疗30 d后腹主动脉采血,采用酶联免疫分析(ELISA)法检测血清PRL;光镜下观察乳腺组织苏木素-伊红(HE)染色切片和SABC免疫组化法PRLR阳性表达情况。结果:模型组大鼠乳房组织形态学符合增生表现,与空白组比较,血清PRL含量及PRLR阳性表达显著增高(均P<0.01);与模型组比较,各治疗组大鼠乳腺组织增生均明显改善,PRL水平及PRLR阳性表达显著降低(P<0.05,P<0.01),其中针药组改善最为明显(均P<0.05)。结论:针刺、乳乐冲剂、针药结合治疗MGH均有效,其机制可能是通过降低血清PRL水平,抑制PRL与PRLR的结合,间接抑制雌二醇水平,从而使增生的乳腺得以复旧。相对于单纯针刺和口服乳乐冲剂,针药结合方案总体疗效更佳。
基金Supported by Natural Science Foundation of Inner Mongolia Autono-mous Region (200711020407)China Agricultural University and Inner Mongolia Agricultural University Cooperation Projects~~
文摘[ Objective] To investigate the feasibility of the primary culture of bovine mammary epithelial cells in biochemical incubator. [ Method] In vitro, bovine mammary epithelial cells were isolated and cultured by the tissue explant method in order to investigate the optimal culture conditions. The morphology observation and identification of the cultured cells were performed by inverted microscope observation, Giemsa staining and cytokeratin immunohistochemistry. [ Result] Observed with inverted microscope, most of the bovine mammary epithelial cells were polygonal and displayed typical slabstone-like appearance. As it can be seen from cell staining results, the cell body was big and the nucleus was stained dark blue and was round or oval in shape, with clearly visible nucleoli, generally 2 -4 nucleoli. The tissue-specific expression of cytokeratin 14 and cytokeratin 18 genes in mammary epithelial cells was identified by cytokeratin immunohistochemistry. [ Conclusion] Primary bovine mammary epithelial cells were successfully cultured in biochemical incubator.
