目的探讨骨碎补总黄酮防治骨质疏松的机理,为补肾中药有效成分治疗骨质疏松症提供实验依据。方法选取3月龄雌性SD大鼠72只,随机分为6组:给药组切除双侧卵巢给予骨碎补总黄酮灌胃,分为:高剂量组,中剂量组,低剂量组;对照组,切除双侧卵巢...目的探讨骨碎补总黄酮防治骨质疏松的机理,为补肾中药有效成分治疗骨质疏松症提供实验依据。方法选取3月龄雌性SD大鼠72只,随机分为6组:给药组切除双侧卵巢给予骨碎补总黄酮灌胃,分为:高剂量组,中剂量组,低剂量组;对照组,切除双侧卵巢给予雌激素灌胃;假手术组,开腹后切除一小块卵巢周围脂肪给予常规喂饲;空白组不做处理常规喂饲。分别在第0、3、6个月处死每次每组4只。取左胫骨近端干骺端标本,运用荧光定量PCR方法测定Cathepsin K mRNA表达量,运用三点弯曲法测胫骨干最大弯曲载荷,采用SPSS软件进行数据统计分析。结果给药组与对照组胫骨干骺端Cathepsin K mRNA表达量相比,有统计学意义(P<0.05)。给药组与假手术,空白组均有显著性差异(P<0.01);胫骨干最大弯曲载荷显示:给药组与对照组有统计学意义(P<0.05),给药组与假手术,空白组均有显著性差异(P<0.01)。结论骨碎补总黄酮可以降低胫骨干骺端Cathepsin KmRNA的表达量,提高胫骨干最大弯曲载荷。此可能为骨碎补总黄酮治疗骨质疏松症的重要机制。展开更多
AIM: To search for new antiviral agents from traditional Chinese medicine, specifically anti-enterovirosuses agents. METHODS: The aqueous extracts (AE) of more than 100 traditionally used medicinal plants in China...AIM: To search for new antiviral agents from traditional Chinese medicine, specifically anti-enterovirosuses agents. METHODS: The aqueous extracts (AE) of more than 100 traditionally used medicinal plants in China were evaluated for their in vitro anti-Coxsackie virus B3 activities with a MTT-based colorimetric assay. RESULTS: The test for AE of 16 plants exhibited anti- Coxsackie virus B3 activities at different magnitudes of potency. They can inhibit three steps (inactivation, adsorption and replication) during the infection. Among the 16 plants, Sargentodoxa cuneata (Oliv.) Rehd. et Wils., Sophora tonkinensis Gapnep., Paeonia veitchii Lynch, Spatholobus suberectus Dunn. and Cyrtorniurn fortunei J, sm. also have activity against other enterovirus, including Coxsackie virus 135, Polio virus I, Echo virus 9 and Echo virus 29. Cell cytotoxic assay demonstrated that all tested AE had CC50 values higher than their EC50 values. CONCLUSION: The sixteen traditionally used medicinal plants in China possessed antMral activity, and some of them merit further investigations.展开更多
文摘目的探讨骨碎补总黄酮防治骨质疏松的机理,为补肾中药有效成分治疗骨质疏松症提供实验依据。方法选取3月龄雌性SD大鼠72只,随机分为6组:给药组切除双侧卵巢给予骨碎补总黄酮灌胃,分为:高剂量组,中剂量组,低剂量组;对照组,切除双侧卵巢给予雌激素灌胃;假手术组,开腹后切除一小块卵巢周围脂肪给予常规喂饲;空白组不做处理常规喂饲。分别在第0、3、6个月处死每次每组4只。取左胫骨近端干骺端标本,运用荧光定量PCR方法测定Cathepsin K mRNA表达量,运用三点弯曲法测胫骨干最大弯曲载荷,采用SPSS软件进行数据统计分析。结果给药组与对照组胫骨干骺端Cathepsin K mRNA表达量相比,有统计学意义(P<0.05)。给药组与假手术,空白组均有显著性差异(P<0.01);胫骨干最大弯曲载荷显示:给药组与对照组有统计学意义(P<0.05),给药组与假手术,空白组均有显著性差异(P<0.01)。结论骨碎补总黄酮可以降低胫骨干骺端Cathepsin KmRNA的表达量,提高胫骨干最大弯曲载荷。此可能为骨碎补总黄酮治疗骨质疏松症的重要机制。
文摘AIM: To search for new antiviral agents from traditional Chinese medicine, specifically anti-enterovirosuses agents. METHODS: The aqueous extracts (AE) of more than 100 traditionally used medicinal plants in China were evaluated for their in vitro anti-Coxsackie virus B3 activities with a MTT-based colorimetric assay. RESULTS: The test for AE of 16 plants exhibited anti- Coxsackie virus B3 activities at different magnitudes of potency. They can inhibit three steps (inactivation, adsorption and replication) during the infection. Among the 16 plants, Sargentodoxa cuneata (Oliv.) Rehd. et Wils., Sophora tonkinensis Gapnep., Paeonia veitchii Lynch, Spatholobus suberectus Dunn. and Cyrtorniurn fortunei J, sm. also have activity against other enterovirus, including Coxsackie virus 135, Polio virus I, Echo virus 9 and Echo virus 29. Cell cytotoxic assay demonstrated that all tested AE had CC50 values higher than their EC50 values. CONCLUSION: The sixteen traditionally used medicinal plants in China possessed antMral activity, and some of them merit further investigations.