|

- 积分
- 80
- 威望
- 80
- 包包
- 72
|
对于心肌细胞是否可以再生,早期该领域一直未有定论,2009年4月《科学》上一篇文章证明人类心肌细胞可以再生,虽然速度非常缓慢。神奇的是文章作者用在冷战时期大气核试验中释放到环境中的C14作为细胞年龄的标记。7 i. |( m1 W5 `+ y, @+ z+ `9 A& m
/ j) p; \# H8 f6 N1 Z# ?
" }+ c' e s) D( V. Q! g- H, \+ C3 h; n0 C
# _( B7 y J4 V! {Heart regeneration. Cardiomyoctes turn9 o* z1 a4 P+ N! }9 ^4 @
over at an estimated rate of ~1% per year at
' E0 B( J9 R& l( j6 T5 gage 20, declining to 0.4% per year at age 75,
( z% J4 m% H% Baccording to Bergmann et al. At age 50, 55%9 H, ~: U. Y6 G) _' s3 v1 C
of human cardiomyocytes remain from birth,- C( j# q! |. o, L. b2 {
while 45% were generated afterward. |
附件: 你需要登录才可以下载或查看附件。没有帐号?注册
-
总评分: 威望 + 5
包包 + 10
查看全部评分
|