Blood stem cells longevity mechanism discovered

Mechanism Behind Blood Stem Cells’ Longevity Discovered – The blood stem cells that live in bone marrow are at the top of a complex family tree. Such stem cells split and divide down various pathways that ultimately produce red cells, white cells and platelets. These “daughter” cells must be produced at a rate of about one million per second to constantly replenish the body’s blood supply.

Understanding beginnings of embryonic stem cells helps predict the future

Understanding the beginnings of embryonic stem cells helps predict the future – Ordinarily, embryonic stem cells exist only a day or two as they begin the formation of the embryo itself. Then they are gone. In the laboratory dish, however, they act more like perpetual stem cells ? renewing themselves and exhibiting the ability to form cells of almost any type, a status called totipotency.

US can continue to fund embryonic stem cell research

ASCB applauds the decision of Judge Royce Lamberth of the US District Court for the District of Columbia to dismiss a lawsuit challenging the US National Institutes of Health guidelines on funding human embryonic stem cell research – The American Society for Cell Biology (ASCB) applauds the decision of Judge Royce Lamberth of the U.S. District Court for the District of Columbia (DC) to dismiss a lawsuit challenging the U.S. National Institutes of Health guidelines on funding human embryonic stem cell research (hESC).

SOX2 gene acts as a stem cell gatekeeper, decides neural stem cell fate

What decides neural stem cell fate? — A gene called SOX2 acts as a stem cell gatekeeper — only cells expressing it have the potential to become neurons – Early in embryonic development, the neural crest ? a transient group of stem cells ? gives rise to parts of the nervous system and several other tissues. But little is known about what determines which cells become neurons and which become other cell types.

Stem cells repair heart damage in a human trial

Heart damage improves, reverses after stem cell injections in a preliminary human trial – Researchers have shown for the first time that stem cells injected into enlarged hearts reduced heart size, reduced scar tissue and improved function to injured heart areas, according to a small trial published in Circulation Research: Journal of the American Heart Association.

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