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Dartmouth researchers describe how the cholera bacteria becomes infectious
In a new study, Dartmouth researchers describe the structure of a protein called ToxT that controls the virulent nature of Vibrio cholerae, the bacteria that causes cholera. view more (2010-02-16)
Amino acid may help treat patients with hair-pulling condition
The amino acid N-acetylcysteine appears to reduce symptoms of compulsive hair-pulling in patients with a condition known as trichotillomania. view more (2009-07-07)
Researchers engineer metabolic pathway in mice to prevent diet-induced obesity
In recent years, obesity has taken on epidemic proportions in developed nations, contributing significantly to major medical problems, early death and rising health care costs. view more (2009-06-03)
Biomarker for age-related macular degeneration found
People who have elevated homocysteine in their blood, an amino acid that is a known biomarker for cardiovascular disease, may also be at an increased risk of developing age-related macular degeneration (AMD), according to a study in the January issue of the American Journal of Ophthalmology. view more (2006-01-05)
Researchers find chink in the armor of viral 'tummy bug'
Researchers at Griffith University's Institute for Glycomics in collaboration with colleagues at the University of Melbourne have moved a step closer to identifying a broad spectrum treatment for the dreaded 'viral tummy bug' or rotavirus. view more (2008-12-23)
Simple membranes could have allowed nutrients to pass into primitive cells
When the first cells developed, how could they bring molecules from the environment into their living interior without the specialized structures found on the modern cell membrane? view more (2008-06-05)
Tummy troubles -- gastrin key in bacterial-induced stomach cancer
Current research suggests that levels of gastrin play a key role in the development of Helicobacter-induced stomach cancer. view more (2009-06-24)
Prenatal vitamins may reduce risk of brain tumors in children
Women who take multivitamins early in pregnancy may reduce the risk that their child will develop some types of brain tumors. view more (2006-09-21)
African parasite makes component of fat differently from all other organisms
Studying the parasite that causes African sleeping sickness, scientists at Johns Hopkins have discovered a previously unknown way of making fatty acids, a component of fat and the outer layer of all cells. view more (2006-08-25)
Prenatal Exposure to Marine Toxin Causes Lasting Damage
Duke University Medical Center researchers have found that the naturally occurring marine toxin domoic acid can cause subtle but lasting cognitive damage in rats exposed to the chemical before birth. view more (2005-09-07)
Testing your reflexes until you've had enough
Can't squeeze in another mouthful? Feeling full is all a question of reflexes, according to Leeds biomedical researcher Dr David Lewis. He hopes to open the way for new therapies to treat obesity, by looking at how, why and when our brain tells our stomach it's had enough. The basic reflexes controlling eating are centred in the hindbrain - the... view more... (2002-05-20)
Metabolic syndrome heightens risk for development of uric-acid kidney stones
Researchers at UT Southwestern Medical Center have found that patients suffering from the metabolic syndrome - a cluster of conditions that increases the risk for heart disease, stroke and diabetes - also have a propensity to develop highly acidic urine, which increases the risk of developing kidney stones. view more (2007-09-13)
British Ecological Society Winter Meeting
Press Invitation You are invited to the UK's premier ecological event, the British Ecological Society's Winter Meeting, being held at the University of Warwick on 18-20 December 2001. Thousands of ecologists from the throughout the world will be attending the meeting, which includes more than 300 papers and 100 posters, as well as the presentation... view more... (2001-11-23)
Drought reduces nitrogen-fixing in legumes
In drought conditions, the capacity for retaining carbon in legume nodules is limited and this may be the reason why there is a drop in nitrogen-fixing in legumes under these conditions. This was the conclusion of Mar'a Dolores G'Ħlvez in defending her PhD thesis at the Public University of Navarre. Her PhD was entitled, "Nodule metabolism... view more... (2005-02-04)
Drug slows prostate tumor growth by keeping vitamin A active
A novel compound that blocks the breakdown of retinoic acid, derived from vitamin A, is a surprisingly effective and "promiscuous" agent in treating animal models of human prostate cancer, say investigators from the University of Maryland, Baltimore (UMB). view more (2007-11-07)
Separating uranium from plutonium
Moscow researchers have made the supercritical carbon dioxide work. Saturated with special reagents, carbon dioxide first extracts uranium from the spent nuclear fuel waste, then extracts plutonium and then flies away into the atmosphere. As a matter of fact, the spent nuclear fuel consists of multiple elements. First of all, this is uranium that... view more... (2003-08-08)
New method monitors early sign of oxidative stress in cancer
The growth of cancerous tumors is fueled, at least in part, by the buildup of free radicals-highly reactive oxygen-containing molecules. view more (2009-09-14)
Variants of 'umami' taste receptor contribute to our individualized flavor worlds
Using a combination of sensory, genetic, and in vitro approaches, researchers from the Monell Center confirm that the T1R1-T1R3 taste receptor plays a role in human umami (amino acid) taste. view more (2009-07-09)
Salmon go veggie to save wild fish stocks
Salmon, like humans, require omega-3 fatty acids in their diet to function healthily. But as the fish farming industry expands, feeding salmon and other aquatic species with pellets containing fishmeal and oil derived from processing wild-caught marine fish is unsustainable in the long term. view more (2006-04-04)
Killing the messenger RNA — But which one?
Tiny molecules called microRNAs, only 19 to 21 nucleotides in length, are able to effectively silence sometimes large sets of genes. They do this by specifically binding to and neutralizing another form of RNA called messenger RNA, responsible for conveying the information from genes to the cellular machinery that uses that information to create... view more... (2007-02-23)
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