目的:综述近年来阿尔茨海默病(Alzheimer's disease,AD)中有关Tau蛋白的研究进展,阐明Tau蛋白与AD病理特征的关系,以期为AD病理机制研究和指导临床用药提供帮助。方法:以“AD”“Tau蛋白”“神经原纤维缠结”为关键词,通过PubMed、W...目的:综述近年来阿尔茨海默病(Alzheimer's disease,AD)中有关Tau蛋白的研究进展,阐明Tau蛋白与AD病理特征的关系,以期为AD病理机制研究和指导临床用药提供帮助。方法:以“AD”“Tau蛋白”“神经原纤维缠结”为关键词,通过PubMed、Web of Science及循证医学网查找相关文献。文献纳入标准:①Tau蛋白结构与功能的研究;②Tau蛋白致AD发病相关机制的研究;③以Tau蛋白为靶点AD治疗药物的研究。文献排除标准:结果相对陈旧或重复的实验研究。最终选择69篇文献纳入分析。结果:Tau蛋白与认知障碍的相关性比Aβ更强。结论:以Tau蛋白为靶点进行药物研发有望为AD治疗提供全新的视角。展开更多
Stable isotopes are increasingly used to investigate seasonal migrations of aquatic organisms. This study employed stable isotopes (delta C-13 and delta N-15) for Coilia nasus from the lower Yangtze River and the adja...Stable isotopes are increasingly used to investigate seasonal migrations of aquatic organisms. This study employed stable isotopes (delta C-13 and delta N-15) for Coilia nasus from the lower Yangtze River and the adjacent East China Sea to distinguish different ecotypic groups, ascertain trophic nutrition positions, and reflect environmental influences on C. nasus. delta C-13 signatures of C. nasus sampled from Zhoushan (ZS), Chongming (CM), and Jingjiang (JJ) waters were significantly higher than those from the Poyang Lake (PYL) (P < 0.05). By contrast, delta N-15 signatures of C. nasus in ZS, CM, and JJ groups were significantly lower than those in PYL group (P < 0.05). Basing on delta C-13 and delta N-15 signatures, we could distinguish anadromous (ZS, CM, and JJ) and non-anadromous (PYL) groups. The trophic level (TL) of anadromous C. nasus ranged from 2.90 to 3.04, whereas that of non-anadromous C. nasus was 4.38. C. nasus occupied the middle and top nutrition positions in the marine and Poyang Lake food webs, respectively. C. nasus in Poyang Lake were significantly more enriched in delta N-15 but depleted in delta C-13, suggesting that anthropogenic nutrient inputs and terrigenous organic carbon are important to the Poyang Lake food web. This study is the first to apply delta N-15 and delta C-13 to population assignment studies of C. nasus in the Yangtze River and its affiliated waters. Analysis of stable isotopes (delta N-15 and delta C-13) is shown to be a useful tool for discriminating anadromous and non-anadromous C. nasus.展开更多
文摘目的:综述近年来阿尔茨海默病(Alzheimer's disease,AD)中有关Tau蛋白的研究进展,阐明Tau蛋白与AD病理特征的关系,以期为AD病理机制研究和指导临床用药提供帮助。方法:以“AD”“Tau蛋白”“神经原纤维缠结”为关键词,通过PubMed、Web of Science及循证医学网查找相关文献。文献纳入标准:①Tau蛋白结构与功能的研究;②Tau蛋白致AD发病相关机制的研究;③以Tau蛋白为靶点AD治疗药物的研究。文献排除标准:结果相对陈旧或重复的实验研究。最终选择69篇文献纳入分析。结果:Tau蛋白与认知障碍的相关性比Aβ更强。结论:以Tau蛋白为靶点进行药物研发有望为AD治疗提供全新的视角。
基金financially supported by the Special Fund for Agro-scientific Research in the Public-Interest(Grant No.201203065)the National Natural Science Foundation of China(Nos.31172407+1 种基金1472280)the Specialized Research Fund for the Doctoral Program of Higher Education(No.20123104110006)
文摘Stable isotopes are increasingly used to investigate seasonal migrations of aquatic organisms. This study employed stable isotopes (delta C-13 and delta N-15) for Coilia nasus from the lower Yangtze River and the adjacent East China Sea to distinguish different ecotypic groups, ascertain trophic nutrition positions, and reflect environmental influences on C. nasus. delta C-13 signatures of C. nasus sampled from Zhoushan (ZS), Chongming (CM), and Jingjiang (JJ) waters were significantly higher than those from the Poyang Lake (PYL) (P < 0.05). By contrast, delta N-15 signatures of C. nasus in ZS, CM, and JJ groups were significantly lower than those in PYL group (P < 0.05). Basing on delta C-13 and delta N-15 signatures, we could distinguish anadromous (ZS, CM, and JJ) and non-anadromous (PYL) groups. The trophic level (TL) of anadromous C. nasus ranged from 2.90 to 3.04, whereas that of non-anadromous C. nasus was 4.38. C. nasus occupied the middle and top nutrition positions in the marine and Poyang Lake food webs, respectively. C. nasus in Poyang Lake were significantly more enriched in delta N-15 but depleted in delta C-13, suggesting that anthropogenic nutrient inputs and terrigenous organic carbon are important to the Poyang Lake food web. This study is the first to apply delta N-15 and delta C-13 to population assignment studies of C. nasus in the Yangtze River and its affiliated waters. Analysis of stable isotopes (delta N-15 and delta C-13) is shown to be a useful tool for discriminating anadromous and non-anadromous C. nasus.
