http://medicalxpress.com/ en-us Medical Xpress internet news portal provides the latest news on Health and Medicine. A research letter by Brian Wansink, Ph.D., and Aner Tal, Ph.D., of Cornell University, Ithaca, N.Y., suggests that hungry grocery shoppers tend to buy higher-calorie products. http://medicalxpress.com/news/2013-05-short-term-food-deprivation-linked-high-calorie.html Health Mon, 06 May 2013 16:00:12 EST news287059709 In diseases like Alzheimer's and Parkinson's endogenous proteins accumulate in the brain, eventually leading to the death of nerve cells. These deposits, which consist of abnormally formed proteins, are supposed to migrate between interconnected areas of the brain, thereby contributing to the development of the illness. Now, a new laboratory study by scientists from Germany and the US shows that certain protein particles are indeed capable of multiplying and spreading from one cell to the next. The investigation was conducted by researchers of the German Center for Neurodegenerative Diseases (DZNE) in Bonn and Munich who cooperated with scientists from the US and from other German institutions. The results are now published in the Proceedings of the National Academy of Sciences (PNAS). http://medicalxpress.com/news/2013-03-transmission-routes-protein-particles.html Neuroscience Wed, 27 Mar 2013 10:07:06 EST news283597619 Internet searches on health symptoms can be used to identify drug side effects and could be used to develop a new kind of early warning system to boost drug safety, indicates a study published online in the Journal of the American Medical Informatics Association. http://medicalxpress.com/news/2013-03-internet-drug-safety-issues.html Medications Wed, 06 Mar 2013 18:30:03 EST news281808744 Resveratrol, a substance found in red grapes and red wine, may have the potential to protect against hearing and cognitive decline, according to a published laboratory study from Henry Ford Hospital in Detroit. http://medicalxpress.com/news/2013-02-resveratrol-cognition.html Medical research Wed, 20 Feb 2013 13:20:01 EST news280588070 University of Rochester Medical Center scientists have proposed a new reason why acute myeloid leukemia, one of the most aggressive cancers, is so difficult to cure: a subset of cells that drive the disease appear to have a much slower metabolism than most other tumors cells. http://medicalxpress.com/news/2013-01-cancer-cell-metabolism-yields-insights.html Cancer Thu, 17 Jan 2013 13:15:21 EST news277650914 A large body of research has focused on the ability of oxytocin to facilitate social bonding in both marital and parenting relationships in human females. A new laboratory study, led by Dr. Ruth Feldman from Bar-Ilan University in Israel and published in the current issue of Biological Psychiatry, has found that oxytocin administration to fathers increases their parental engagement, with parallel effects observed in their infants. http://medicalxpress.com/news/2012-12-oxytocin-engaged-fathers-responsive-infants.html Psychology & Psychiatry Mon, 10 Dec 2012 09:10:22 EST news274353005 A team of IRCM researchers, led by Dr. Frédéric Charron, recently uncovered a nerve cell's internal clock, used during embryonic development. The discovery was made in collaboration with Dr. Alyson Fournier's laboratory at the Montreal Neurological Institute. Published today in the prestigious scientific journal Neuron, this breakthrough could lead to the development of new tools to repair and regenerate nerve cells following injuries to the central nervous system. http://medicalxpress.com/news/2012-11-regenerating-nerve-cells.html Neuroscience Wed, 21 Nov 2012 14:07:48 EST news272729260 The use of certain water-based, over-the-counter personal lubricants can dry out and irritate vaginal and rectal tissue, but does not appear to increase susceptibility to HIV, according to a laboratory study published today in PLoS ONE. Even so, say study authors affiliated with the National Institutes of Health (NIH)-funded Microbicide Trials Network (MTN), more research is needed to fully understand the safety of personal lubricants and their effect on epithelial tissue, the layer of mucosal cells that acts as the body's first line of defense against sexually transmitted HIV. http://medicalxpress.com/news/2012-11-cell-personal-lubricants-hiv.html HIV & AIDS Wed, 07 Nov 2012 17:00:22 EST news271519316 (Medical Xpress)—We are, at our core, social creatures and we spend considerable time and effort on building and maintaining our relationships with others. As young children, we're taught that "sharing means caring" and, as we mature, we learn to take others' point of view. If we make a decision that favors self-interest, we often feel guilt for prioritizing ourselves over others. http://medicalxpress.com/news/2012-10-happy-choice.html Psychology & Psychiatry Tue, 09 Oct 2012 17:46:44 EST news269023583 A laboratory study led by UNC medical oncologist Stergios Moschos, MD, demonstrates how a new targeted drug, Elesclomol, blocks oxidative phosphorylation, which appears to play essential role in melanoma that has not been well-understood. Elesclomol (Synta Pharmaceuticals, Lexington, MA) was previously shown to have clinical benefit only in patients with normal serum lactate dehydrogenase (LDH), a laboratory test routinely used to assess activity of disease. http://medicalxpress.com/news/2012-08-reveals-molecular-melanoma-treatment.html Cancer Fri, 17 Aug 2012 23:17:06 EST news264464196 If past experience makes you think there's going to be one more cashew at the bottom of the bowl, you're likely to search through those mixed nuts a little longer. http://medicalxpress.com/news/2012-08-tumors-handguns-food.html Neuroscience Tue, 07 Aug 2012 12:55:32 EST news263562911 After being infected with simian immunodeficiency virus (SIV) in a laboratory study, rhesus macaques that had more of a certain type of immune cell in their gut than others had much lower levels of the virus in their blood, and for six months after infection were better able to control the virus. http://medicalxpress.com/news/2012-05-potential-hiv-vaccinetherapy.html HIV & AIDS Wed, 30 May 2012 14:34:51 EST news257607274 Findings from preclinical studies in a skin cancer model showed that next-generation BRAF inhibitors used alone, or first-generation BRAF inhibitors used in combination with an epidermal growth factor receptor inhibitor, may have the potential to prevent drug-induced skin lesions in BRAF mutation-positive patients treated for melanoma. http://medicalxpress.com/news/2011-11-approaches-side-effects-braf-mutation-positive.html Cancer Sun, 13 Nov 2011 17:22:02 EST news240427310 Two new studies by researchers at the University of Rhode Island are providing additional insights into the role that eating rate plays in the amount of food one consumes. The studies found that men eat significantly faster than women, heavier people eat faster than slimmer people, and refined grains are consumed faster than whole grains, among other findings. http://medicalxpress.com/news/2011-11-evidence-food-intake.html Health Tue, 08 Nov 2011 16:18:10 EST news239991483