Perfectionism puts adolescent girls with unhealthy eating habits at risk for becoming anorexic and the body imperfections that go along with it as they grow older, a new study finds. The study also found that girls who showed some bulimic tendencies, such as binge eating and occasional purging, were more likely to develop a full-blown version of the disorder if they reported symptoms of depression.
A preliminary study reports that enhancing the body’s innate immunity can improve symptoms of Crohn’s disease in 80 percent of patients with moderate to severe forms of the debilitating, inflammatory gastrointestinal disorder. Crohn’s disease is a chronic, lifelong condition, which affects about half a million people in the United States. Until now, the disease has been thought to result from an overactive immune system, and therapies have attempted to suppress, rather than enhance, the immune response. Therapies that suppress immunity improve symptoms in many Crohn’s disease patients, but researchers are looking for alternative treatments to help those who don’t respond.
Aspirin may reduce ovarian cancer growth, a laboratory study has shown. The study, published in the October issue of the journal Obstetrics and Gynecology, demonstrated that aspirin inhibited ovarian tumor cell growth by as much as 68 percent. The higher the dosage of aspirin added to the culture of ovarian cancer cells, the more growth inhibition was observed.
Researchers say the biological motors that nature uses for intracellular transport and other biological functions inspired them to create a whole new class of micro-devices for controlling magnetic flux quanta in superconductors that could lead to the development of a new generation of medical diagnostic tools. As integrated circuits become smaller and smaller, it becomes increasingly difficult to create the many “guiding channels” that act like wires to move electrons around the circuit components.
Scientists have uncovered a cruel twist of fate in men who have advanced prostate cancer.
Doctors have long known that the medications they use to treat prostate cancer effectively for one to two years inevitably fail, leaving patients with few treatment options as the disease progresses, killing more than 30,000 men in the United States alone every year. Now scientists have discovered that at least one such medication has a completely unexpected side effect: The compound actually turns on a molecule known to cause cancerous cells to grow.
Virtually hairless, venerably wrinkled and very nearly blind, naked mole-rats — those homely rodents from underground Africa — remind some zoo-goers of little old men. The resemblance is more than coincidence. They really are really old males — and females, too — biologists report in an article scheduled for November publication in the Journal of Zoology (Vol. 258, Part 3). Many naked mole-rats (Heterocephalus glaber) in laboratory colonies in the United States and South Africa have lived more than 20 years, and some are at least 26 years old, making them by far the oldest small rodents in captivity.