新闻 > 国际
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20170819/31130424.html
Server: cms-9-53
Date: 2024/12/27 14:05:55

Powered by China
China

美国最新研究发现一种人体蛋白可改善认知能力

2017-08-19 11:51:48   新华网

(原标题:美研究发现一种人体蛋白有改善认知能力的疗效)

新华社旧金山8月18日电人体内有一种叫Klotho的蛋白质,过去有研究表明它可以延长寿命,而美国的一项最新研究发现,注射Klotho蛋白片段还能迅速提高小鼠的认知和运动能力。

Klotho在肾脏和大脑中天然产生,以激素形式在体内循环,随着衰老而减少。之前的研究显示,体内Klotho水平增高与认知改善有关联。不过,这些研究的实验对象是经过基因改造、能持续产生高水平Klotho的小鼠,或是携带基因变异、体内终身含有高水平Klotho的人。研究人员并不清楚,能否把Klotho作为药物注射,并起到治疗作用。

美国加利福尼亚大学旧金山分校研究人员最近在美国《细胞报告》杂志上报告说,无论是幼龄、老龄还是有生理损伤的小鼠,被注射了Klotho蛋白片段后,其空间学习、记忆等一系列认知能力都有所提高。

研究人员发现,给幼龄鼠注射一次该蛋白片段,就能产生持久的认知提升效果;对于18个月大、相当于人类65岁的老龄鼠,一次注射能明显改善它们绕行障碍物和学习新任务的能力。

研究人员还对经过基因改造后产生α-突触核蛋白的小鼠进行了实验。α-突触核蛋白被认为是帕金森病的重要特征,并可导致阿尔兹海默病。普通组小鼠在接受Klotho注射治疗后运动功能有改善,学习能力提高,与未被注射Klotho的对照组小鼠相比更愿意探索新空间,即便普通组小鼠大脑中仍含有有毒性的α-突触核蛋白。

虽然研究人员尚未能解释,注射到小鼠体内的Klotho如何改变大脑功能、改善认知的机理,但他们指出,新发现有助于了解身体和大脑之间微妙的连接。

责任编辑:曲格林 CN064
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20170819/31130424.html
Server: cms-9-53
Date: 2024/12/27 14:05:55

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20170819/31130424.html
Server: cms-9-53
Date: 2024/12/27 14:05:55

Powered by China
China

相关阅读

研究称:通过基因编辑 人类有望移植动物器官保命

2017-08-11 11:19:17

印政府痴迷于研究牛 印科学家游行要求增加科研经费

2017-08-11 13:36:28

研究员在南极发现100年前水果蛋糕 看起来还能吃

2017-08-11 14:42:37
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20170819/31130424.html
Server: cms-9-53
Date: 2024/12/27 14:05:55

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20170819/31130424.html
Server: cms-9-53
Date: 2024/12/27 14:05:55

Powered by China
China
分享到:
0 0
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20170819/31130424.html
Server: cms-9-53
Date: 2024/12/27 14:05:55

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20170819/31130424.html
Server: cms-9-53
Date: 2024/12/27 14:05:55

Powered by China
China

美图推荐

404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20170819/31130424.html
Server: cms-9-53
Date: 2024/12/27 14:05:55

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20170819/31130424.html
Server: cms-9-53
Date: 2024/12/27 14:05:55

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20170819/31130424.html
Server: cms-9-53
Date: 2024/12/27 14:05:55

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20170819/31130424.html
Server: cms-9-53
Date: 2024/12/27 14:05:55

Powered by China
China

为您推荐

加载更多>>
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20170819/31130424.html
Server: cms-9-53
Date: 2024/12/27 14:05:55

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20170819/31130424.html
Server: cms-9-53
Date: 2024/12/27 14:05:55

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/10000166/20170819/31130424.html
Server: cms-9-53
Date: 2024/12/27 14:05:55

Powered by China
China