背景:瞬态受体电位通道构成了一个庞大而多样的阳离子通道家族,作为细胞传感器对机体内外大量的物理和化学刺激做出反应。钙是骨组织的重要组成部分,钙相关调节因子可以通过Ca^(2+)浓度的改变在骨形成和骨吸收中发挥作用,而骨质疏松发...背景:瞬态受体电位通道构成了一个庞大而多样的阳离子通道家族,作为细胞传感器对机体内外大量的物理和化学刺激做出反应。钙是骨组织的重要组成部分,钙相关调节因子可以通过Ca^(2+)浓度的改变在骨形成和骨吸收中发挥作用,而骨质疏松发生过程中的骨代谢较大程度上就是Ca^(2+)的代谢过程。TRPV5/TRPV6是跨细胞Ca^(2+)转运的重要通道,在瞬态受体电位家族中对于Ca^(2+)具有高度通透性,因此上皮Ca^(2+)通道与骨代谢之间存在着密切关系。目的:综述骨代谢与钙的关系、Ca^(2+)通道TRPV5/TRPV6的特性及生理功能和TRPV5/TRPV6与骨质疏松发生过程中骨代谢之间的关系,为祖国医学在抗骨质疏松中的具体机制研究提供更加充分的证据支持。方法:以"calcium channel,TRPV5,TRPV6,bone metabolism,osteoporosis,traditional Chinese medicine"为英文检索词,以"钙离子通道、TRPV5、TRPV6、骨代谢、中医药"为中文检索词,由第一作者检索2000年1月至2021年4月PubMed数据库、中国知网、万方全文数据库,查阅Ca^(2+)通道TRPV5/TRPV6与骨代谢研究相关的文献,最终保留58篇进行综述。结果与结论:(1)破骨细胞与成骨细胞的平衡在骨代谢活动维持正常状态中起重要作用,人体上皮组织中高度表达的Ca^(2+)通道TRPV5/TRPV6对全身Ca^(2+)代谢有着非常重要的作用。(2)Ca^(2+)通道TRPV5、TRPV6对Ca^(2+)具有高选择通透特性,在磷酸化、糖基化、泛素化等多种翻译修饰后对于骨代谢产生作用,进而对破骨细胞或者成骨细胞发挥效应,以抑制破骨细胞,增加钙的吸收,促进成骨作用。(3)中医药抗骨质疏松可能是通过增加体内肠道或者肾脏TRPV5/TRPV6的表达或TRPV5/TRPV6通道开放量增加,进一步提高TRPV5/TRPV6的活性,以达到抑制破骨细胞的骨吸收、促进成骨细胞的骨形成,最终发挥防治骨质疏松的作用。展开更多
The restructuring of old industrial areas has been receiving much attention in regional development studies both in industrialized and emerging economies. Although ample Chinese-speaking studies have been published on...The restructuring of old industrial areas has been receiving much attention in regional development studies both in industrialized and emerging economies. Although ample Chinese-speaking studies have been published on the topic, most of them suffer from paying too little attention to dynamic multi-scalar interactions between firms, institutions, policies and places, as well as a too strong focus on individual cases. They also mostly disregard internationally recognized concepts and theories in the field. Based on these internationally recognized modern concepts, this paper therefore puts forward some potential avenues for future research on the evolution of old industrial areas in China, which should overcome existing deficits in the Chinese-speaking literature. It suggests that some evolutionary economic geography concepts such as path dependence, lock-in, path creation, relatedness, as well as multi-scalar institutional and leadership approaches have useful potentials to better understand the evolutionary processes and mechanisms of old industrial areas in China.展开更多
The regulation of heat shock transcription factor to heat shock protein expression and the newest knowledge about the effect of heat shock protein on aging,immune response and the balance of cell survival and apoptosi...The regulation of heat shock transcription factor to heat shock protein expression and the newest knowledge about the effect of heat shock protein on aging,immune response and the balance of cell survival and apoptosis are summarized in the paper.展开更多
文摘背景:瞬态受体电位通道构成了一个庞大而多样的阳离子通道家族,作为细胞传感器对机体内外大量的物理和化学刺激做出反应。钙是骨组织的重要组成部分,钙相关调节因子可以通过Ca^(2+)浓度的改变在骨形成和骨吸收中发挥作用,而骨质疏松发生过程中的骨代谢较大程度上就是Ca^(2+)的代谢过程。TRPV5/TRPV6是跨细胞Ca^(2+)转运的重要通道,在瞬态受体电位家族中对于Ca^(2+)具有高度通透性,因此上皮Ca^(2+)通道与骨代谢之间存在着密切关系。目的:综述骨代谢与钙的关系、Ca^(2+)通道TRPV5/TRPV6的特性及生理功能和TRPV5/TRPV6与骨质疏松发生过程中骨代谢之间的关系,为祖国医学在抗骨质疏松中的具体机制研究提供更加充分的证据支持。方法:以"calcium channel,TRPV5,TRPV6,bone metabolism,osteoporosis,traditional Chinese medicine"为英文检索词,以"钙离子通道、TRPV5、TRPV6、骨代谢、中医药"为中文检索词,由第一作者检索2000年1月至2021年4月PubMed数据库、中国知网、万方全文数据库,查阅Ca^(2+)通道TRPV5/TRPV6与骨代谢研究相关的文献,最终保留58篇进行综述。结果与结论:(1)破骨细胞与成骨细胞的平衡在骨代谢活动维持正常状态中起重要作用,人体上皮组织中高度表达的Ca^(2+)通道TRPV5/TRPV6对全身Ca^(2+)代谢有着非常重要的作用。(2)Ca^(2+)通道TRPV5、TRPV6对Ca^(2+)具有高选择通透特性,在磷酸化、糖基化、泛素化等多种翻译修饰后对于骨代谢产生作用,进而对破骨细胞或者成骨细胞发挥效应,以抑制破骨细胞,增加钙的吸收,促进成骨作用。(3)中医药抗骨质疏松可能是通过增加体内肠道或者肾脏TRPV5/TRPV6的表达或TRPV5/TRPV6通道开放量增加,进一步提高TRPV5/TRPV6的活性,以达到抑制破骨细胞的骨吸收、促进成骨细胞的骨形成,最终发挥防治骨质疏松的作用。
基金Under the auspices of National High-level University Overseas Ph D Program by China Scholarship Council(CSC)Ministry of Education of China(No.2011614011)
文摘The restructuring of old industrial areas has been receiving much attention in regional development studies both in industrialized and emerging economies. Although ample Chinese-speaking studies have been published on the topic, most of them suffer from paying too little attention to dynamic multi-scalar interactions between firms, institutions, policies and places, as well as a too strong focus on individual cases. They also mostly disregard internationally recognized concepts and theories in the field. Based on these internationally recognized modern concepts, this paper therefore puts forward some potential avenues for future research on the evolution of old industrial areas in China, which should overcome existing deficits in the Chinese-speaking literature. It suggests that some evolutionary economic geography concepts such as path dependence, lock-in, path creation, relatedness, as well as multi-scalar institutional and leadership approaches have useful potentials to better understand the evolutionary processes and mechanisms of old industrial areas in China.
文摘The regulation of heat shock transcription factor to heat shock protein expression and the newest knowledge about the effect of heat shock protein on aging,immune response and the balance of cell survival and apoptosis are summarized in the paper.
