In laboratory studies, Johns Hopkins researchers say they have found that stem cells from a patient's own fat may have the potential to deliver new treatments directly into the brain after the surgical removal of a glioblastoma, the most common and aggressive form of brain tumor.

A new study has found that women who take aspirin have a reduced risk of developing melanoma - and that the longer they take it, the lower the risk. The findings suggest that aspirin's anti-inflammatory effects may help protect against this type of skin cancer. The study is published early online in CANCER, a peer-reviewed journal of the American Cancer Society.

Television advertising may drive over-diagnosis of high cholesterol and over-treatment with statins, according to a new study by Dr. Jeff Niederdeppe from Cornell University in the US and colleagues. It appears that a trip to the doctor enquiring about statins advertised on TV often leads to a prescription. The work appears online in the Journal of General Internal Medicine, published by Springer.

The authors base their findings on an analysis of the anonymised search logs of millions of US web users, who agreed to install a browser add-on and share their online searches with Microsoft throughout 2010. The researchers developed automated tools to analyse the queries of people who searched for information on the antidepressant (paroxetine) and a cholesterol lowering drug (pravastatin), using the search engines Google, Bing and Yahoo.

Some 5.8 million Americans suffer from heart failure, a currently incurable disease. But scientists at Temple University School of Medicine's (TUSM) Center for Translational Medicine have discovered a key biochemical step underlying the condition that could aid the development of new drugs to treat and possibly prevent it.

Researchers have discovered how oxidative stress can turn to the dark side a cellular protein that's usually benign, and make it become a powerful, unwanted accomplice in neuronal death. This finding, reported in Proceedings of the National Academy of Sciences, could ultimately lead to new therapeutic approaches to many of the world's debilitating or fatal diseases.

The largest randomised study of the vitamin niacin in patients with occlusive arterial disease (narrowing of the arteries) has shown a significant increase in adverse side-effects when it is combined with statin treatment. Results from the HPS2-THRIVE study (Heart Protection Study 2 - Treatment of HDL to Reduce the Incidence of Vascular Events), including the reasons patients stopped the study treatment, are published online in the European Heart Journal.