“In today’s world, the stereotype of the nerdy scientist, by himself, looking at a microscope, is no longer accurate and no longer useful,” says Gabriel Innes, a third-year student in the University of Pennsylvania School of Veterinary Medicine.
Erica Miller and Sue McDonnell of the School of Veterinary M
A new chemical-genetic therapy restores light responses to the retinas of blind mice and dogs and enables the mice to guide their behavior according to visual cues, setting the stage for clinical trial in humans.
In multiple sclerosis, the immune system goes rogue, improperly attacking the body’s own central nervous system. Mobility problems and cognitive impairments may arise as the nerve cells become damaged.
Many factors, both genetic and environmental, have been blamed for increasing the risk of a diagnosis of schizophrenia. Some, such as a family history of schizophrenia, are widely accepted. Others, such as infection with Toxoplasma gondii, a parasite transmitted by soil, undercooked meat and cat feces, are still viewed with skepticism.
As scientists probe the molecular underpinnings of why some people are prone to obesity and some to leanness, they are discovering that weight maintenance is more complicated than the old “calories in, calories out” adage.
Almost anyone who has spent time in a hospital is familiar with the routine checks of blood pressure and oxygen levels that serve as signposts of a patient’s overall health.
But these measures only reflect the pulsing of blood through the large vessels, arteries and veins, not the smaller arterioles, venules and capillaries, which directly feed tissues and cells.