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2020-02-20 14:27:09 官方地址:http://pm2517.com 浏览次数 971764
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Life after death 'possible' as scientists find genes spring to life TWO DAYS after animals dieScientists have made a shock discovery that tho

usands of genes come back to life in a corpse TWO DAY

S after animals die. In what could be a step towards the answer to one of the gr

eatest questions of mankind - whether there is life after death? - it could also have implications for organ transplants . Scientists have long pondered whether gene activity gradually trails off - or completely stops - after an animal dies. New evidence uncovered by researchers at the University of Washington in fact shows more than 1,000 genes remain active post-mortem - some of which only begin to splutter into action 24-48hrs after the event. And any thought that its some kind of reflex action - or some random genes flickering on and off - can be quickly discounted. Loosening DNA could be one explanation as to why these genes have suddenly sprung into life (Image: Getty) Moreover, the genes in question are asso

ciated with stress res

ponse - suggesting the animals are trying to re-establish activity - as well some connected with embryonic development. More than half of

the active genes are coded for proteins while the others were regu

latory – indicating significant energy is still being used. Read more: Read MoreRelated ArticlesWhos the daddy? New paternity test wil

l reveal

fathers identity at jus

t EIGHT weeks pregnancy One theory is that DNA, which is tightly packed, loosens up after death freeing genes which were previously kept from

being active to roam. Researchers conducted experiments on zebra fish and mice - and discovered increased activity

in 1,063 genes after the animals had died. Most of the genes fizzled into action 30 minutes after the animals died - but some took between 24 and 48 hours. Read more: Read MoreRelated ArticlesThe diabetes drug that can also be used to fight off dementia They have published their results online in bioRxiv - an online life sciences service to make their findings immediately available to the scientific community - where they said the majority of the genes kick into action half an hour after death. Their paper explains: A step-wise shutdown occurs in organismal death that is manifested by the apparent upregulation of genes with various abundance maxima and durations.

It could be that this flurry of activity could be part 香港图片最新 of the process to shut the body down. The question is though - does this make possible some kind of reboot? Video LoadingV

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