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Human embryo at the 4 cell stage

Health

Embryo cells decide their future only two days after conception

The identical-looking cells of a four-cell embryo have already started deciding their fates, a discovery that could improve IVF and stem cell therapies

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A haploid cell with 23 chromosomes (left), and a diploid cell with 46 chromosomes (right).

Life

Human stem cell with half a genome could help infertile couples

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A premature baby

Life

Urine from premature babies could repair damaged kidneys

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stem cells

Health

First fully approved 'off the shelf' stem cells launch in Japan

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Two dogs with their heads looking out of the tops of a row of cubicles. They are both clones of the same black-and-tan German Shepherd dog, and their only difference is that the left ear of one of them points upwards

Earth

Inside the cloning factory that creates 500 new animals a day

Analysis

World's first trial of stem cell therapy in the womb

Health

World's first trial of stem cell therapy in the womb

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Health

Rebooted pancreas cells could ease type 1 diabetes

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Patent for first method to create human sperm, but does it work?

Health

Patent for first method to create human sperm, but does it work?

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Health

Donated liposuction stem cells could heal difficult wounds

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New Scientists reject claims of lab-grown mini human brain

Life

51��s reject claims of lab-grown mini human brain

It made headlines, but a claim to have cultured a nearly fully formed brain is "entirely unjustified", say neuroscientists contacted by 51��

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Health

Mutation alert halts stem-cell trial to cure blindness

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60 Seconds

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Life

Tiny beating human heart made from scratch

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What is artificial blood and why is the UK going to trial it?

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