In this paper we try to study the retentive peculiarity of soluble enriched uranium UO2F2 in subcellular level by electron microscopic autoradiography. The early dynamic accumulation of radioactivity in the body showe...In this paper we try to study the retentive peculiarity of soluble enriched uranium UO2F2 in subcellular level by electron microscopic autoradiography. The early dynamic accumulation of radioactivity in the body showed that enriched uranium UO2F2 was chiefly localized in kidney, especially accumulated in epicyte of kidney near- convoluted tubule. In liver cells, enriched uranium UO2F2 at first deposited in the nucleus and the cytoplasm, then accumulated in mitochondria selectively and lysosome as well. The electron microscopic autoradiographic study showed that the dynamic retention of radioactivity of enriched uranium UO2F2 in skeleton rose steadily throughout the exposure. Enriched uranium UO2F2 chiefly deposited in nucleus and mitochondria of the osteoblast as well as osteoclast.展开更多
目的检测多刺绿绒蒿中碎叶紫堇碱的含量并探索碎叶紫堇碱的抗氧化活性,利用网络药理学和分子对接技术探索碎叶紫堇碱通过抗氧化作用对治疗糖尿病(DM)、颅内动脉瘤(IA)、慢性阻塞性肺疾病(COPD)和动脉瘤性蛛网膜下腔出血(aSAH)的作用机制...目的检测多刺绿绒蒿中碎叶紫堇碱的含量并探索碎叶紫堇碱的抗氧化活性,利用网络药理学和分子对接技术探索碎叶紫堇碱通过抗氧化作用对治疗糖尿病(DM)、颅内动脉瘤(IA)、慢性阻塞性肺疾病(COPD)和动脉瘤性蛛网膜下腔出血(aSAH)的作用机制,为多刺绿绒蒿用于治疗氧化应激性相关疾病提供依据。方法采用高效液相色谱-质谱联用仪(HPLC-MS/MS)对多刺绿绒蒿中碎叶紫堇碱的含量进行测定;通过TLC-生物自显影法判定其抗氧化活性;使用SuperPred、Genecards和DisGeNET等在线数据库搜集碎叶紫堇碱的靶点和治疗DM、IA、COPD和aSAH的靶点,构建碎叶紫堇碱治疗疾病的“化合物-靶点-疾病”图和蛋白互作网络;基于Metascape数据库和CytoNCA插件进行KEGG通路富集分析;使用Discovery Studio 2019 Client软件对活性成分与潜在靶点进行分子对接验证结合活性。结果研究显示多刺绿绒蒿中碎叶紫堇碱的含量为0.1137μg/mL;TLC-生物自显影结果显示碎叶紫堇碱具有抗氧化活性;通过网络药理学分析获得碎叶紫堇碱治疗以上4种疾病的34个核心靶点;KEGG通路结果显示参与癌症途径、PI3K-Akt信号通路等118条KEGG通路;分子对接结果显示碎叶紫堇碱与SRC、RPS6KB1、ITGB1等蛋白结合稳定。结论多刺绿绒蒿中碎叶紫堇碱含量相对较高且通过多靶点、多途径发挥抗氧化的作用。展开更多
The changes in density of M-cholinergic receptors in different areas of senile rats and the regulatory action of Huang Qi (黄芪Radix Astragali, a drug for warming yang and replenishing qi) were observed by autoradiogr...The changes in density of M-cholinergic receptors in different areas of senile rats and the regulatory action of Huang Qi (黄芪Radix Astragali, a drug for warming yang and replenishing qi) were observed by autoradiography. The results showed that the gray scale displayed in brain sections was clear and mainly distributed in the cortex, hippocampus and striate body, while that due to nonspecific combination was negligible. The gray scale in the cortex, hippocampus and striate body of the experimental group was markedly lower than that in the young control rats, decreased respectively by 24.87%, 14.12% and 12.76% (all P<0.05); but it was obviously higher than those in the senile control rats, increased respectively by 24.15%, 14.38% and 13.47% (P<0.05). The data indicate that Huang Qi (黄芪Radix Astragali) may up-regulate the decreased density of M-cholinergic receptors in the brain of senile rats.展开更多
基金The Project Supported by the National Natural Science Foundation of China
文摘In this paper we try to study the retentive peculiarity of soluble enriched uranium UO2F2 in subcellular level by electron microscopic autoradiography. The early dynamic accumulation of radioactivity in the body showed that enriched uranium UO2F2 was chiefly localized in kidney, especially accumulated in epicyte of kidney near- convoluted tubule. In liver cells, enriched uranium UO2F2 at first deposited in the nucleus and the cytoplasm, then accumulated in mitochondria selectively and lysosome as well. The electron microscopic autoradiographic study showed that the dynamic retention of radioactivity of enriched uranium UO2F2 in skeleton rose steadily throughout the exposure. Enriched uranium UO2F2 chiefly deposited in nucleus and mitochondria of the osteoblast as well as osteoclast.
文摘目的检测多刺绿绒蒿中碎叶紫堇碱的含量并探索碎叶紫堇碱的抗氧化活性,利用网络药理学和分子对接技术探索碎叶紫堇碱通过抗氧化作用对治疗糖尿病(DM)、颅内动脉瘤(IA)、慢性阻塞性肺疾病(COPD)和动脉瘤性蛛网膜下腔出血(aSAH)的作用机制,为多刺绿绒蒿用于治疗氧化应激性相关疾病提供依据。方法采用高效液相色谱-质谱联用仪(HPLC-MS/MS)对多刺绿绒蒿中碎叶紫堇碱的含量进行测定;通过TLC-生物自显影法判定其抗氧化活性;使用SuperPred、Genecards和DisGeNET等在线数据库搜集碎叶紫堇碱的靶点和治疗DM、IA、COPD和aSAH的靶点,构建碎叶紫堇碱治疗疾病的“化合物-靶点-疾病”图和蛋白互作网络;基于Metascape数据库和CytoNCA插件进行KEGG通路富集分析;使用Discovery Studio 2019 Client软件对活性成分与潜在靶点进行分子对接验证结合活性。结果研究显示多刺绿绒蒿中碎叶紫堇碱的含量为0.1137μg/mL;TLC-生物自显影结果显示碎叶紫堇碱具有抗氧化活性;通过网络药理学分析获得碎叶紫堇碱治疗以上4种疾病的34个核心靶点;KEGG通路结果显示参与癌症途径、PI3K-Akt信号通路等118条KEGG通路;分子对接结果显示碎叶紫堇碱与SRC、RPS6KB1、ITGB1等蛋白结合稳定。结论多刺绿绒蒿中碎叶紫堇碱含量相对较高且通过多靶点、多途径发挥抗氧化的作用。
文摘The changes in density of M-cholinergic receptors in different areas of senile rats and the regulatory action of Huang Qi (黄芪Radix Astragali, a drug for warming yang and replenishing qi) were observed by autoradiography. The results showed that the gray scale displayed in brain sections was clear and mainly distributed in the cortex, hippocampus and striate body, while that due to nonspecific combination was negligible. The gray scale in the cortex, hippocampus and striate body of the experimental group was markedly lower than that in the young control rats, decreased respectively by 24.87%, 14.12% and 12.76% (all P<0.05); but it was obviously higher than those in the senile control rats, increased respectively by 24.15%, 14.38% and 13.47% (P<0.05). The data indicate that Huang Qi (黄芪Radix Astragali) may up-regulate the decreased density of M-cholinergic receptors in the brain of senile rats.
