Objective To explore the protective effects of tannins in Sanguisorba Radix （TSR） on myelosuppression mice induced by cyclophosphamide （CTX）. Methods TSR was ig given at the dose of 20 mg/kg for 10 d after ip admi...Objective To explore the protective effects of tannins in Sanguisorba Radix （TSR） on myelosuppression mice induced by cyclophosphamide （CTX）. Methods TSR was ig given at the dose of 20 mg/kg for 10 d after ip administration of CTX （200 mg/kg）. Results TSR could significantly increase the numbers of white blood ceils, red blood cells, and platelets of myelosuppression in mice. And it could accelerate bone marrow haemopoietic stem/progenitor cells （HSPCs） in myelosuppression mice and enhance cell proliferation by promoting cell cycles from G0/G1 phase to access into S and G2/M phases, then the reduced number of HSPCs induced by CTX was reversed. Moreover, TSR could increase the mRNA and protein expression levels of O（6）-methylguanine- DNA methyltransferase （MGMT） in HSPCs of myelosuppression mice. Concision TSR has a protective function against CTX-induced myelosuppression. The mechanism might be related to protecting hematopoietic stem cells of bone marrow, stimulating hematopoiesis recovery, as well as preventing the apoptosis of hematopoietic stem cells induced by CTX.展开更多
通过查阅历代本草、医籍、方书和近现代文献资料,笔者对地榆药材的名称、基原、学名演变、产地、采收时间、品质评价及炮制加工方法等进行了系统梳理与考证。据考证可知,地榆之名始载于《神农本草经》,其后历代本草均以之为正名并沿用...通过查阅历代本草、医籍、方书和近现代文献资料,笔者对地榆药材的名称、基原、学名演变、产地、采收时间、品质评价及炮制加工方法等进行了系统梳理与考证。据考证可知,地榆之名始载于《神农本草经》,其后历代本草均以之为正名并沿用至今。历代主流来源为蔷薇科植物地榆Sanguisorba officinalis或其变种长叶地榆S. officinalis var. longifolia的根。古代本草以其根绵软、肥大者为好,据此性状特征,基原应为今长叶地榆;近现代著作则以根条粗、质硬、断面粉红或红色、无根茎及须根者佳,据此性状特征,基原应为今地榆。地榆历代主流炮制方法多为生用,偶见以醋炒、焙等方法炮制加工;自清代以来出现地榆炒炭使用并沿续至现今。基于考证结果,建议开发含有地榆的经典名方使用长叶地榆的根入药,其炮制方法应结合具体药物条文进行选择。展开更多
基金Natural Science Fundation of China(No.81373976)Major and special project of National science and technology(No.2013ZX09103002-013)
文摘Objective To explore the protective effects of tannins in Sanguisorba Radix （TSR） on myelosuppression mice induced by cyclophosphamide （CTX）. Methods TSR was ig given at the dose of 20 mg/kg for 10 d after ip administration of CTX （200 mg/kg）. Results TSR could significantly increase the numbers of white blood ceils, red blood cells, and platelets of myelosuppression in mice. And it could accelerate bone marrow haemopoietic stem/progenitor cells （HSPCs） in myelosuppression mice and enhance cell proliferation by promoting cell cycles from G0/G1 phase to access into S and G2/M phases, then the reduced number of HSPCs induced by CTX was reversed. Moreover, TSR could increase the mRNA and protein expression levels of O（6）-methylguanine- DNA methyltransferase （MGMT） in HSPCs of myelosuppression mice. Concision TSR has a protective function against CTX-induced myelosuppression. The mechanism might be related to protecting hematopoietic stem cells of bone marrow, stimulating hematopoiesis recovery, as well as preventing the apoptosis of hematopoietic stem cells induced by CTX.
文摘通过查阅历代本草、医籍、方书和近现代文献资料,笔者对地榆药材的名称、基原、学名演变、产地、采收时间、品质评价及炮制加工方法等进行了系统梳理与考证。据考证可知,地榆之名始载于《神农本草经》,其后历代本草均以之为正名并沿用至今。历代主流来源为蔷薇科植物地榆Sanguisorba officinalis或其变种长叶地榆S. officinalis var. longifolia的根。古代本草以其根绵软、肥大者为好,据此性状特征,基原应为今长叶地榆;近现代著作则以根条粗、质硬、断面粉红或红色、无根茎及须根者佳,据此性状特征,基原应为今地榆。地榆历代主流炮制方法多为生用,偶见以醋炒、焙等方法炮制加工;自清代以来出现地榆炒炭使用并沿续至现今。基于考证结果,建议开发含有地榆的经典名方使用长叶地榆的根入药,其炮制方法应结合具体药物条文进行选择。
