Bone marrow stem cells may be vital for pregnancy

(Kendall Teare-Yale/ Futurity) — A woman’s bone marrow may determine her ability to start and sustain a pregnancy, according to new research.

The study shows that when an egg is fertilized, stem cells leave the bone marrow and travel via the bloodstream to the uterus, where they help transform the uterine lining for implantation. If the lining fails to go through this essential transformation, the embryo cannot implant, and the body terminates the pregnancy.

“We have always known that two kind of things were necessary for pregnancy,” says senior author Hugh Taylor, a professor of obstetrics, gynecology, and reproductive sciences at Yale University.

“You must have ovaries to make eggs, and you must also have a uterus to receive the embryo. But knowing that bone marrow has a significant role is a paradigm shift.” (…)

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