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A new mass spectrometry test can help sports anti-drug doping officials to detect whether an athlete has used drugs that boost naturally occurring steroid levels. The test is more sensitive compared to previous alternatives, more capable of revealing specific suspicious chemical in the body, faster to perform, and could be run on standard drug-screening laboratory equipment.

Exercise does not suppress appetite in obese women, as it does in lean women, according to a new study. Obese women claimed they were less hungry than lean women before meals and reported no appetite suppression during exercise.

Most alcohol research tends to assume that drinks contain the same amount of pure alcohol: 0.6 ounces or 18 milliliters. Why is this important? Researchers need accuracy to do their job well, and consumers need to know what they're drinking, especially if they are going to drive. New research has found that the average size of wine, mixed drinks and beer served in Northern California bars, restaurants and other drinking establishments is larger than the standard, and alcohol content can vary widely. Researchers visited 80 bars and restaurants in Northern California.

Postmenopausal women are at an increased risk of developing coronary artery disease, yet recent research studies have sometimes resulted in conflicting data regarding how best to treat or minimize the effects of the disease.

Researchers have achieved a breakthrough in monitoring the toxin-delivery system of highly pathogenic bacteria -- an accomplishment that could help pave the way for new drugs that will be capable of neutralizing those germs.

Could injecting a gene into a patient with severe heart failure reverse their disabling and life-threatening condition? Physician-scientists are setting out to answer that question in a first-ever clinical trial of gene therapy to treat severe heart failure.

In the past, physicians were able only to follow the progression of Alzheimer's disease through careful clinical histories, noting the often subtle changes associated with cognitive decline over a number of years. Recent research suggests that the use of molecular imaging in the management of neurodegenerative disease, particularly for early diagnosis of AD, will enable researchers to monitor the progression of the disease, identifying those at risk and assessing the effectiveness of new therapies.

Claims that a large increase in the strength of cannabis over the last decade is driving the occurrence of mental health and other problems for users are not borne out by a study of the worldwide literature, say researchers at the National Drug and Alcohol Research Centre and the National Drug Research Institute, both from Australia.

The first patient scans from a custom-built scanner combining positron emission tomography and computed tomography technologies indicate that these scans could significantly improve breast cancer imaging capabilities and lead to more targeted treatment options, according to researchers. The prototype scanner is designed to help physicians determine stages of breast cancer in patients already diagnosed with the disease, rather than as a mammography screening tool.

Researchers describe the first successful use of a human patient's cloned infection-fighting T cells as the sole therapy to put an advanced solid-tumor cancer into long-term remission.