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Fetus donates stem cells to heal mother`s heart

Baku, November 23 (AZERTAC). Why wait to be born to develop a healing hand? Mouse fetuses will give up stem cells to repair their mother`s heart. The discovery could explain why half the women who develop heart weakness during or just after pregnancy recover spontaneously.

Hina Chaudhry of the Mount Sinai School of Medicine in New York City mated normal female mice with males genetically engineered to produce a green-fluorescing protein in all their body cells. Half the resulting fetuses also produced the protein, making it easy to spot any fetal tissue in the mother.

Chaudhry`s team inflicted a heart attack on the pregnant mice and killed them two weeks later to take a look at their hearts. They found some fluorescent cells in the mothers` damaged heart tissue, where they had accelerated repair by changing into new heart cells, including beating cardiomyocytes and blood vessel cells.

 

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