ScienceDaily: Top Health News |
| Viagra against heart failure: Researchers throw light on the mechanism Posted: 23 Dec 2011 06:14 AM PST Sildenafil, the active ingredient in Viagra, can alleviate heart problems, and now researchers can explain why. They studied dogs with diastolic heart failure, a condition in which the heart chamber does not sufficiently fill with blood. The scientists showed that sildenafil makes stiffened cardiac walls more elastic again. The drug activates an enzyme that causes the giant protein titin in the myocardial cells to relax.  |
| Multiple sclerosis linked to different area of brain Posted: 22 Dec 2011 04:50 PM PST Radiology researchers have found evidence that multiple sclerosis affects an area of the brain that controls cognitive, sensory and motor functioning apart from the disabling damage caused by the disease's visible lesions.  |
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