ScienceDaily: Health & Medicine News |
- New method for watching proteins fold
- Viagra against heart failure: Researchers throw light on the mechanism
- A new way of approaching the early detection of Alzheimer's disease
- New sensor to detect lung cancer from exhaled breath
- Multiple sclerosis linked to different area of brain
| New method for watching proteins fold Posted: 23 Dec 2011 06:14 AM PST A protein's function depends on both the chains of molecules it is made of and the way those chains are folded. And while figuring out the former is relatively easy, the latter represents a huge challenge with serious implications because many diseases are the result of misfolded proteins. Now, a team of chemists has devised a way to watch proteins fold in "real-time," which could lead to a better understanding of protein folding and misfolding in general.  |
| 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.  |
| A new way of approaching the early detection of Alzheimer's disease Posted: 23 Dec 2011 06:14 AM PST One of our genes is apolipoprotein E, which often appears with a variation which nobody would want to have: APOEµ4, the main genetic risk factor for sporadic Alzheimer's disease. It is estimated that at least 40 percent of the sporadic patients affected by this disease are carriers of APOEµ4, but this also means that much more still remains to be studied.  |
| New sensor to detect lung cancer from exhaled breath Posted: 23 Dec 2011 06:13 AM PST Scientists are developing biosensors capable of detecting the presence of tumor markers of lung cancer in exhaled breath. This is possible because of the changes produced within the organism of an ill person, changes reflected in the exhaled breath of the patient and which enable determining the presence of this type of marker during the initial stages of the disease.  |
| 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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