Tag Archives | stanford researchers

Researchers identify best hours for shut-eye when sleep must be limited

People getting a minimal amount of sleep do better if they go to bed early in the morning rather than late at night, suggests Stanford University Medical Center research. A recently published pilot study on the effects of sleep deprivation also found that individual tolerance of sleep restriction varies widely, yet study participants had a better overall adaptation to early morning sleep.

Bone marrow cells take on new role in the brain, say Stanford researchers

Researchers have published new evidence showing that cells from the bone marrow might help repair or maintain cells in other tissues. In a paper in this week’s online edition of the Proceedings of the National Academy of Sciences, the researchers describe finding chromosomes from a bone marrow transplant in the brain cells of transplant recipients. When people receive a bone marrow transplant after high-dose chemotherapy, some of the transplanted cells regenerate the blood-making cells that were destroyed. In past experiments in mice, scientists found that cells from the transplant could also relocate to tissues throughout the body rather than being restricted to the bone marrow and blood.

New technique cuts risks of gene therapy

Stanford researchers have developed a technique that could cut the risks associated with gene therapy. Traditionally, gene therapy involves sneaking a snippet of genes into a person’s DNA via a virus messenger. But the result is the new sequence gets randomly placed within the patient’s existing genes, sometimes triggering other illnesses, such as leukemia. The new technique eliminates the need for a virus delivery system and places the genes in precise locations.

Researchers to test smallpox vaccine

Researchers in Northern California are conducting a clinical trial that will test whether diluted doses of the smallpox vaccine produce adequate immunity in adults who have previously been vaccinated. The results of the federally funded study, for which volunteers are now being sought, will help shape U.S. policy on how the vaccine would be given in the event of a smallpox outbreak.

See also:
When rashes kill
Facing disfigurement in 2002
Smallpox immunity lasts longer than thought