http://medicalxpress.com/ en-us Medical Xpress internet news portal provides the latest news on Health and Medicine. New findings from nonhuman primates suggest that an overactive core circuit in the brain, and its interaction with other specialized circuits, accounts for the variability in symptoms shown by patients with severe anxiety. In a brain-imaging study to be published online today in the Proceedings of the National Academy of Sciences (PNAS), researchers from the University of Wisconsin School of Medicine and Public Health describe work that for the first time provides an understanding of the root causes of clinical variability in anxiety disorders. http://medicalxpress.com/news/2013-03-brain-variation-pathological-anxiety.html Psychology & Psychiatry Mon, 25 Mar 2013 17:14:28 EST news283450456 Researchers at the National Institutes of Health (NIH) and Oregon Health & Science University (OHSU) have found that an experimental vaccine elicits antibodies that can protect nonhuman primates from Ebola virus infection. http://medicalxpress.com/news/2013-01-scientists-role-antibodies-ebola-vaccine.html Medical research Mon, 14 Jan 2013 16:08:41 EST news277402096 Investigators at Wake Forest Baptist Medical Center have concluded research on a new postmenopausal hormone therapy that shows promise as an effective treatment for menopausal symptoms and the prevention of osteoporosis without increasing the risk for heart disease or breast cancer. http://medicalxpress.com/news/2012-12-hormone-therapy-menopausal-symptoms-animal.html Medical research Thu, 13 Dec 2012 04:31:15 EST news274595453 German neurophysiologists have developed a new method to study widespread networks of neurons responsible for our memory. http://medicalxpress.com/news/2012-11-neural-interaction-periods-silence.html Neuroscience Wed, 21 Nov 2012 13:00:14 EST news272724699 A new Ebola virus study resulting from a widespread scientific collaboration has shown promising preliminary results, preventing disease in infected nonhuman primates using monoclonal antibodies. http://medicalxpress.com/news/2012-10-ebola-antibody-treatment-monkeys-lethal.html Medical research Mon, 15 Oct 2012 15:00:13 EST news269520865 Humans inherit more than three times as many mutations from their fathers as from their mothers, and mutation rates increase with the father's age but not the mother's, researchers have found in the largest study of human genetic mutations to date. http://medicalxpress.com/news/2012-08-mutations-dad.html Genetics Fri, 24 Aug 2012 10:18:52 EST news265022314 Japanese researchers developed a gene transfer technique that can "eliminate" a specific neural circuit in non-human primates for the first time in the world. http://medicalxpress.com/news/2012-06-transgenic-technique-specific-neural-circuit.html Neuroscience Tue, 26 Jun 2012 09:32:47 EST news259921956