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.
Stem cell transplant restores memory, learning in mice – A study at the University of Wisconsin-Madison is the first to show that human stem cells can successfully implant themselves in the brain and then heal neurological deficits, says senior author Su-Chun Zhang, a professor of neuroscience and neurology.
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.
Neural stem cell transplant may tackle diabetes — Using patients’ own stem cells can overcome shortage of insulin-producing cells without the need for gene transfer – Researchers in Japan have discovered how a patient’s neural stem cells could be used as an alternative source of the beta cells needed for a regenerative treatment for diabetes.
Study reveals critical similarity between two types of do-it-all stem cells – Researchers saw substantial similarity between the two stem-cell types – pluripotent stem cells and embryonic stem cells, reported in a new study.
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).
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.
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.
Stem cells take cues from cerebrospinal fluid in the brain – Proteins in fluids bathing the brain are essential for building the brain, revealed by researchers in the journal Neuron. The finding promises to advance research related to neurological disease, cancer and stem cells.
Scripps Research scientists convert skin cells to beating heart cells — Breakthrough discovery offers hope for new therapies for range of diseases – Adult skin cells are converted into beating heart cells efficiently without generating embryonic-like stem cells, revealed by researchers.