Body

Researchers describe first 'functional HIV cure' in an infant

A team of researchers from Johns Hopkins Children's Center, the University of Mississippi Medical Center and the University of Massachusetts Medical School describe the first case of a so-called "functional cure" in an HIV-infected infant. The finding, the investigators say, may help pave the way to eliminating HIV infection in children.

Researchers discover how to shutdown cancer's powerful master protein

NEW YORK (March 3, 2013) -- The powerful master regulatory transcription factor called Bcl6 is key to the survival of a majority of aggressive lymphomas, which arise from the B-cells of the immune system. The protein has long been considered too complex to target with a drug since it is also crucial to the healthy functioning of many immune cells in the body, not just B cells gone bad.

7 genetic risk factors found to be associated with common eye disorder

An international group of researchers has discovered seven new regions of the human genome—called loci—that are associated with increased risk of age-related macular degeneration (AMD), a leading cause of blindness. The AMD Gene Consortium, a network of international investigators representing 18 research groups, also confirmed 12 loci identified in previous studies. The findings are reported online today in the journal Nature Genetics.

Scientists identify 'clean-up' snafu that kills brain cells in Parkinson's disease

March 3, 2013— (Bronx, NY) — Researchers at Albert Einstein College of Medicine of Yeshiva University have discovered how the most common genetic mutations in familial Parkinson's disease damage brain cells.

Adding to the list of disease-causing proteins in brain disorders

PHILADELPHIA – A multi-institution group of researchers has found new candidate disease proteins for neurodegenerative disorders. James Shorter, Ph.D., assistant professor of Biochemistry and Biophysics at the Perelman School of Medicine, University of Pennsylvania, Paul Taylor, M.D., PhD, St.

Cancer vaccines self-sabotage, channel immune attack to injection site

HOUSTON – Cancer vaccines that attempt to stimulate an immune system assault fail because the killer T cells aimed at tumors instead find the vaccination site a more inviting target, scientists at The University of Texas MD Anderson Cancer Center report in Nature Medicine.

A common substance used in many cancer vaccines to boost immune attack betrays the cause by facilitating a buildup of T cells at the vaccination site, which then summon more T cells to help with the perceived threat.

2 new genes linked to amyotrophic lateral sclerosis and related disorders

A study led by St. Jude Children's Research Hospital has discovered mutations in two genes that lead to the death of nerve cells in amyotrophic lateral sclerosis (ALS), also known as Lou Gehrig's disease, and related degenerative diseases.

Study maps human metabolism in health and disease

Scientists have produced an instruction manual for the human genome that provides a framework to better understand the relationship between an individual's genetic make-up and their lifestyle.

The international team of researchers say their study – published in Nature Biotechnology – provides the best model yet to explain why individuals react differently to environmental factors such as diet or medication.

International consortium builds 'Google Map' of human metabolism

Building on earlier pioneering work by researchers at the University of California, San Diego, an international consortium of university researchers has produced the most comprehensive virtual reconstruction of human metabolism to date. Scientists could use the model, known as Recon 2, to identify causes of and new treatments for diseases like cancer, diabetes and even psychiatric and neurodegenerative disorders. Each person's metabolism, which represents the conversion of food sources into energy and the assembly of molecules, is determined by genetics, environment and nutrition.

International consortium discovers seven new genomic regions associated with AMD

(Boston) – An international group of researchers has discovered seven new regions of the human genome—called loci—that are associated with increased risk of age-related macular degeneration (AMD), a leading cause of blindness. The AMD Gene Consortium, a network of international investigators representing 18 research groups, also confirmed 12 loci identified in previous studies.

Genetic risk factors for common eye disorder come into focus

An international group of investigators has identified seven new genetic regions associated with age-related macular degeneration (AMD), a common cause of blindness in older individuals. The findings, reported online March 3 in Nature Genetics, could point to new biological pathways and therapeutic targets for AMD.

What Might Declining Night Vision Mean for AMD Patients?

The Complications of Age-Related Macular Degeneration Prevention Trial (CAPT) Research Group assessed night vision in a cohort of 1,052 CAPT patients. The main purpose of CAPT, a National Eye Institute-sponsored multicenter randomized clinical trial conducted from 1999 to 2005, was to investigate whether low-intensity laser treatment could prevent vision loss in patients with early stage age-related macular degeneration (AMD).

Misplaced molecules: New insights into the causes of dementia

A shortage of a protein called TDP-43 caused muscle wasting and stunted nerve cells. This finding supports the idea that malfunction of this protein plays a decisive role in ALS and FTD. The study is published in the "Proceedings of the National Academy of Sciences of the USA" (PNAS).

Postmenopausal women who smoked are more likely to lose teeth due to periodontal disease

BUFFALO, N.Y. – Postmenopausal women who have smoked are at much higher risk of losing their teeth than women who never smoked, according to a new study published and featured on the cover of the Journal of the American Dental Association by researchers at the University at Buffalo.

A coordinated response to cardiac stress

Myocardial hypertrophy, a thickening of the heart muscle, is an adaptation that occurs with increased stress on the heart, such as high blood pressure. As the heart muscle expands, it also requires greater blood flow to maintain access to oxygen and nutrients, necessitating an expansion of the cardiac vasculature. In this issue of the Journal of Clinical Investigation, Daniela Tirziu and researchers at Yale University identified a molecular mechanism by which the growth of new blood vessels (angiogenesis) and heart muscle growth are coordinated.