Body

There is a link between use of anabolic-androgenic steroids and reduced mental health later in life. This is the main conclusion of a new study on elite male strength athletes that researchers from the University of Gothenburg recently published in the British Journal of Sports Medicine. Twenty per cent of the subjects in the study admitted steroid use.

The study comprised over 24,000 Finnish subjects and was led by Professor Samuli Ripatti. The results revealed that a panel of 28 genetic markers improved detection of individuals with high risk for coronary heart disease (CHD) (10-year risk ≥20%) over traditional risk factors.

Jerusalem, May 20, 2013 –A new study conducted using extensive medical records of over one million Israeli adolescents before military service shows clearly how exposure to the Israeli sun of young, light-skinned children increases substantially the risk of cutaneous melanoma (a serious form of skin cancer).

The incidence of cutaneous melanoma is on the rise in all parts of the world where light-skinned people live. Rates have tripled over the last decades in the United States, and the rise was even steeper in Europe.

A new computer model could help scientists predict when a particular strain of avian influenza might become infectious from bird to human, according to a report to be published in the International Journal Data Mining and Bioinformatics.

WASHINGTON, D.C., May 20, 2013 – At a time when the spotlight is focused on obesity more than ever, new research suggests that frequency of candy consumption is not associated with weight or certain adverse health risks. According to a recent data analysis published in the April 30th issue of Nutrition Journal, adults who consume candy at least every other day are no more likely to be overweight nor have greater risk factors for cardiovascular disease (CVD) than moderate consumers (about once a week) or even less frequent candy eaters (less than 3 times per month).1

In ICU patients who have septic shock, the anatomic source of infection has a strong effect on the chances of survival, according to a new study from researchers in Canada.

ROCHESTER, Minn. — Patients with inflammatory bowel disease (IBD) are at higher risk of melanoma, a form of skin cancer, report researchers at Mayo Clinic. Researchers found that IBD is associated with a 37 percent greater risk for the disease. The findings were presented at the Digestive Disease Week 2013 conference in Orlando, Fla.

CHAMPAIGN, Ill. — In a new study described in the journal Oncogene, researchers reveal how a key player in cell growth, immunity and the inflammatory response can be transformed into a primary contributor to tumor growth.

OAKLAND, Calif., May 20, 2013 — Whole-cell pertussis vaccines were more effective at protecting against pertussis than acellular pertussis vaccines during a large recent outbreak, according to a new Kaiser Permanente study published in Pediatrics.

A novel study reports that white men and women of European descent inherit common foot disorders, such as bunions (hallux valgus) and lesser toe deformities, including hammer or claw toe. Findings from the Framingham Foot Study—the first to estimate the heritability of foot disorders in humans—appear in Arthritis Care & Research, a journal published by Wiley on behalf of the American College of Rheumatology (ACR).

A new measure of the heterogeneity – the variety of genetic mutations – of cells within a tumor appears to predict treatment outcomes of patients with the most common type of head and neck cancer. In the May 20 issue of the journal Cancer, investigators at Massachusetts General Hospital (MGH) and Massachusetts Eye and Ear Infirmary describe how their measure was a better predictor of survival than most traditional risk factors in a small group of patients with squamous cell carcinoma of the head and neck.

What lures a lady frog to her lover? Good looks, the sound of his voice, the size of his pad or none of the above? After weighing up their options, female strawberry poison frogs (Oophaga pumilio) bag the closest crooner they can, finds research in BioMed Central's open access journal Frontiers of Zoology. This seemingly short-sighted strategy turns out to be the optimal mate choice strategy for these colourful frogs.

ANN ARBOR, Mich. — Touted for safety, ease and patient convenience, peripherally inserted central catheters have become many clinicians' go-to for IV delivery of antibiotics, nutrition, chemotherapy, and other medications.

But compared to other central venous catheters (CVCs), these commonly-used catheters (known as PICCs) more than double the risk of dangerous blood clots – especially among patients who are critically ill or who have cancer, according to a new University of Michigan Health System study published in The Lancet.

Researchers have engineered a strain of electricity-producing bacteria that can grow using hydrogen gas as its sole electron donor and carbon dioxide as its sole source of carbon. Researchers at the University of Massachusetts, Amherst report their findings at the 113th General Meeting of the American Society for Microbiology.

"This represents the first result of current production solely on hydrogen," says Amit Kumar, a researcher on the study who, along with his co-authors are part of the Lovley Lab Group at the university.

Scientists at the University of California, Davis have engineered a strain of photosynthetic cyanobacteria to grow without the need for light. They report their findings today at the 113th General Meeting of the American Society for Microbiology.