http://medicalxpress.com/ en-us Medical Xpress internet news portal provides the latest news on Health and Medicine. (Medical Xpress)—As obesity rates continue to rise, experts are searching for answers in the clinic and at the lab bench to determine the types and amounts of food that people should eat. http://medicalxpress.com/news/2013-02-worm-clues-obesity.html Medical research Fri, 08 Feb 2013 06:35:08 EST news279527698 Researchers at the University of Minnesota have uncovered a human enzyme responsible for causing DNA mutations found in the majority of breast cancers. The discovery of this enzyme – called APOBEC3B – may change the way breast cancer is diagnosed and treated. http://medicalxpress.com/news/2013-02-enzyme-breast-cancer-mutations.html Cancer Wed, 06 Feb 2013 13:00:01 EST news279377214 Stroke the soft body of a newborn fruit fly larva ever-so-gently with a freshly plucked eyelash, and it will respond to the tickle by altering its movement—an observation that has helped scientists at the University of California, San Francisco (UCSF) uncover the molecular basis of gentle touch, one of the most fundamental but least well understood of our senses. http://medicalxpress.com/news/2012-12-secrets-gentle-revealed.html Neuroscience Sun, 09 Dec 2012 13:00:08 EST news274276293 Barclay Morrison, an associate professor of biomedical engineering, compares the brain's physical response to traumatic brain injury to, of all things, a gelatin dessert. http://medicalxpress.com/news/2012-10-biomechanics-traumatic-brain-injury-treatments.html Medical research Fri, 19 Oct 2012 07:11:26 EST news269849476 Scientists at the Gladstone Institutes have gotten us one step closer to understanding and overcoming one of the least-understood mechanisms of HIV infection—by devising a method to precisely track the life cycle of individual cells infected with HIV, the virus that causes AIDS. http://medicalxpress.com/news/2012-09-scientists-technique-decipher-dormant-aids.html HIV & AIDS Tue, 11 Sep 2012 12:54:58 EST news266586891 For years, doctors treating those with HIV have recognized a relationship between how faithfully patients take the drugs they prescribe, and how likely the virus is to develop drug resistance. More recently, research has shown that the relationship between adherence to a drug regimen and resistance is different for each of the drugs that make up the "cocktail" used to control the disease. http://medicalxpress.com/news/2012-09-mathematical-efficient-multi-drug-therapies.html Medical research Sun, 02 Sep 2012 13:00:13 EST news265786554 Columbia University Medical Center (CUMC) researchers have identified a potential medical treatment for the cognitive effects of stress-related disorders, including post-traumatic stress disorder (PTSD). The study, conducted in a PTSD mouse model, shows that an experimental drug called S107, one of a new class of small-molecule compounds called Rycals, prevented learning and memory deficits associated with stress-related disorders. The findings were published today in the online edition of Cell. http://medicalxpress.com/news/2012-08-potential-treatment-cognitive-effects-stress-related.html Psychology & Psychiatry Thu, 30 Aug 2012 12:00:05 EST news265546491 While Spider-Man is capturing the imagination of theatergoers, real-life spider men in Upstate New York are working intently to save a young boy's life. http://medicalxpress.com/news/2012-07-real-life-spider-men-protein-venom.html Medical research Mon, 16 Jul 2012 13:28:52 EST news261664120 After finishing his PhD in molecular biophysics, Alan Jasanoff decided to veer away from that field and try looking into some of the biggest questions in neuroscience: How do we perceive things? What happens in our brains when we make decisions? http://medicalxpress.com/news/2012-03-tools-timeless.html Neuroscience Fri, 16 Mar 2012 09:17:04 EST news251108208 When first exposed to cocaine, the adolescent brain launches a strong defensive reaction designed to minimize the drug's effects, Yale and other scientists have found. Now two new studies by a Yale team identify key genes that regulate this response and show that interfering with this reaction dramatically increases a mouse's sensitivity to cocaine. http://medicalxpress.com/news/2012-02-cocaine-teen-brain-insights-addiction.html Neuroscience Tue, 21 Feb 2012 17:00:09 EST news249047144 We've all seen the story in the news before. Whether it's the death of a physically fit high school athlete at football training camp in August, or of an elderly woman gardening in the middle of the day in July, heat stroke is a serious, life-threatening condition for which there is no treatment beyond submersion in ice water or the application of ice packs to cool the body to a normal temperature. http://medicalxpress.com/news/2012-01-pill-extreme-sensitivity.html Medical research Sun, 08 Jan 2012 13:00:05 EST news245239814 In type 2 diabetes, a protein called amylin forms dense clumps that shut down insulin-producing cells, wreaking havoc on the control of blood sugar. But zinc has a knack for preventing amylin from misbehaving. http://medicalxpress.com/news/2011-06-diabetes-zinc-effects-kinky-two-faced.html Medical research Thu, 30 Jun 2011 17:47:04 EST news228674805 University of Tennessee researcher uses computer simulation to pinpoint changes in molecular structure that leads directly to disease. http://medicalxpress.com/news/2011-06-scientists-uncover-trigger-fatal-neurodegenerative.html Medical research Wed, 22 Jun 2011 08:23:36 EST news227949797