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/10000166/20170908/31318193.html
Server: cms-8-251
Date: 2024/05/28 00:07:44

Powered by China
China

向天再借五百年?科学家找到延寿新方法!

2017-09-08 07:02:01   新华网

美国加利福尼亚大学洛杉矶分校生物学家通过提高果蝇细胞中Drp1蛋白的水平,将果蝇寿命延长10%至20%。科学家希望研究成果有助新药物的研发,从而治疗与衰老相关的疾病、帮助人类延长寿命。

线粒体是一种半自主细胞器,除了为细胞供能,还参与诸如细胞分化、细胞信息传递和细胞凋亡等过程,并拥有调控细胞生长和细胞周期的能力。线粒体通常会因机体衰老过程而受损,而受损线粒体更容易堆积在大脑、肌肉或其他器官。当人体无法清除受损线粒体时,它们会产生毒素,并导致多种与衰老有关的疾病。

英国《自然·通讯》杂志在线版6日援引研究报告内容报道,上述研究关注的就是线粒体。研究人员用中龄果蝇做实验,因为当果蝇长至中龄时,其体内的线粒体会有最初的小个、圆形变大变长,这代表着细胞清除受损线粒体的能力。实验中,当果蝇长到30天大时,研究人员“关闭”其体内的Atg1基因,使果蝇无法清除受损线粒体,并连续一周提高其细胞中Drp1蛋白的水平。结果发现,果蝇变得更为活跃,耐力更好,雌性果蝇平均延寿20%,雄性果蝇平均延寿12%。研究人员认为,Drp1蛋白水平提高使果蝇能够清除小的、受损的线粒体,只保留健康线粒体。英国《每日邮报》援引报告主要作者戴维·沃克的话报道:“我们的确延缓了衰老导致的健康水平降低。7天的干预已足够延长它们(果蝇)的生命,促进它们的健康。”(乔颖)【新华社微特稿】

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/10000166/20170908/31318193.html
Server: cms-8-251
Date: 2024/05/28 00:07:44

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/10000166/20170908/31318193.html
Server: cms-8-251
Date: 2024/05/28 00:07:44

Powered by China
China

相关阅读

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/10000166/20170908/31318193.html
Server: cms-8-251
Date: 2024/05/28 00:07:44

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/10000166/20170908/31318193.html
Server: cms-8-251
Date: 2024/05/28 00:07:44

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/10000166/20170908/31318193.html
Server: cms-8-251
Date: 2024/05/28 00:07:44

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/10000166/20170908/31318193.html
Server: cms-8-251
Date: 2024/05/28 00:07:44

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/10000166/20170908/31318193.html
Server: cms-8-251
Date: 2024/05/28 00:07:44

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/10000166/20170908/31318193.html
Server: cms-8-251
Date: 2024/05/28 00:07:44

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/10000166/20170908/31318193.html
Server: cms-8-251
Date: 2024/05/28 00:07:44

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/10000166/20170908/31318193.html
Server: cms-8-251
Date: 2024/05/28 00:07:44

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/10000166/20170908/31318193.html
Server: cms-8-251
Date: 2024/05/28 00:07:44

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/10000166/20170908/31318193.html
Server: cms-8-251
Date: 2024/05/28 00:07:44

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/10000166/20170908/31318193.html
Server: cms-8-251
Date: 2024/05/28 00:07:44

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/10000166/20170908/31318193.html
Server: cms-8-251
Date: 2024/05/28 00:07:44

Powered by China
China