Washington, September 10 : Experiments on pigs have shown that secretion from human embryonic stem cells can minimize heart injury by reducing tissue death by 60 per cent, say researchers.

Washington, August 29 : Johns Hopkins researchers say that they have identified the earliest form of human blood stem cells, and discerned how they replicate and grow.

The researchers say that these stem cells are pinpointed by a biochemical marker called angiotensin-converting enzyme (ACE), which is well known for its role in the regulation of blood pressure, blood vessel growth, and inflammation.

Washington, July 25 : In a study on mice, UC Irvine scientists have found stem cells in the brain that can produce new brain cells to replace those lost to disease or injury. They’ve also found that these ‘true’ stem cells are located in a different part of the brain than believed.

Washington, Apr 15:In a novel attempt, researchers at UT South-western Medical Centre have successfully repaired heart damage in animal models with the help of drug-treated blood stem cells.

It may open up the possibility for developing methods for healing injuries caused by heart attacks or disease.

Washington, Apr 11: Researchers at the University of Manchester have taken a major step forward in the development of an Adult Stem Cells (ASCs) treatment for damaged tissue, by uncovering a messaging system that instructs ASCs to contribute to tissue repair in response to chemical signals in the body.

Washington, Mar 29 : Scientists at the University of Buffalo have suggested that stem cells derived from hair follicles have the potential to be formed into new blood vessels.

London, March 24 : A team of researchers at The University of Texas M. D. Anderson Cancer Center, led by an Indian origin scientist, has discovered that a protein called REST blocks the expression of a microRNA that prevents embryonic stem cells from reproducing themselves, and causes them to differentiate into specific cell types.

Washington, February 13 : Embryonic stem cells (ESC) seem to have the potential to become an alternative source of cells for bone marrow transplantation, with a new study showing that they can be used to created functional immune system blood cells. The study, published online in journal Blood, offers new hope to patients with severe blood and immune disorders.

London, January 31 : An animal study by researchers at the Salk Institute for Biological Studies has revealed that a process by which neural stem cells remain in proliferative state, known as neurogenesis, modulates learning and memory.

During the study, mice were genetically engineered to stop neurogenesis - literally the "birth of neurons" - and that turned them into "slow learners".