Low cholesterol in immune cells slows HIV progression – Scientists at the University of Pittsburgh have identified why some HIV-infected people experience much slower disease progression, even without medication, and it has to do with cholesterol levels in specific immune cells.
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.
Omega-3 supplements may slow a biological effect of aging – Taking enough omega-3 fatty acid supplements to change the balance of oils in the diet could slow a key biological process linked to aging, new research suggests.
Single antibody shrinks variety of human tumors transplanted into mice, Stanford study shows – Human tumors transplanted into laboratory mice disappeared or shrank when scientists treated the animals with a single antibody. This antibody works by masking a protein flag on cancer cells that protects them from macrophages and other cells in the immune system.
Parkinson’s disease: Study of live human neurons reveals the disease’s genetic origins — UB researchers identify how the parkin gene works and how mutations cause Parkinson’s disease – Parkinson’s disease researchers at the University at Buffalo have discovered how mutations in the parkin gene cause the disease, which afflicts at least 500,000 Americans and for which there is no cure. The results are published in the current issue of Nature Communications.
Scientists identify defect in brain cell channel that may cause autism-like syndrome – What goes wrong in the brain when an individual suffers from autism. Autism is a spectrum of developmental disorders of impaired social and verbal interaction. Currently, no medication exists to treat its underlying causes, according to the U.S. National Library of Medicine.