http://medicalxpress.com/ en-us Medical Xpress provides the latest news from Wellcome Trust Researchers have identified the dose of dengue virus in human blood that is required to infect mosquitoes when they bite. Mosquitoes are essential for transmitting the virus between people so the findings have important implications for understanding how to slow the spread of the disease. http://medicalxpress.com/news/2013-05-dengue-virus-transmission.html Diseases, Conditions, Syndromes Mon, 13 May 2013 15:00:13 EST news287662993 The global burden of dengue infection is more than triple current estimates from the World Health Organization, according to a multinational study published today in the journal Nature. http://medicalxpress.com/news/2013-04-global-burden-dengue-triple-current.html Diseases, Conditions, Syndromes Sun, 07 Apr 2013 13:00:11 EST news284557369 A widely prescribed type 2 diabetes drug slows down the ageing process by mimicking the effects of dieting, according to a study published today using worms to investigate how the drug works. http://medicalxpress.com/news/2013-03-reveals-diabetes-drug-ageing-worms.html Medical research Thu, 28 Mar 2013 12:41:48 EST news283693300 Being mugged or randomly attacked in the street often leaves people paranoid and distrustful of others long after the attack, according to a study published today. The research highlights a previously under-recognised consequence of physical assault which will help to inform therapy for those seeking help. http://medicalxpress.com/news/2013-03-paranoia-persists-victims-months.html Psychology & Psychiatry Tue, 26 Mar 2013 20:00:09 EST news283541551 A drug widely used to treat Parkinson's Disease can help to reverse age-related impairments in decision making in some older people, a study from researchers at the Wellcome Trust Centre for Neuroimaging has shown. http://medicalxpress.com/news/2013-03-parkinsons-drug-older-people-decisions.html Neuroscience Sun, 24 Mar 2013 14:00:13 EST news283334994 The largest study of epilepsy in sub-Saharan Africa to date reveals that programmes to control parasitic diseases and access to better antenatal care could substantially reduce the prevalence of the disease in this region. http://medicalxpress.com/news/2013-01-parasites-poor-antenatal-main-epilepsy.html Neuroscience Wed, 30 Jan 2013 19:00:02 EST news278789821 A 48-week course of antiretroviral medication taken in the early stages of HIV infection slows the damage to the immune system and delays the need for long term treatment, according to research published today in the New England Journal of Medicine (1). However, the delay was only marginally longer than the time already spent on treatment. http://medicalxpress.com/news/2013-01-early-treatment-hiv-immune-transmission.html HIV & AIDS Wed, 16 Jan 2013 17:00:07 EST news277577675 (Medical Xpress)—A team of researchers led by the Institute of Cancer Research, London, have found that rare mutations in a gene called PPM1D are linked to an increased risk of breast and ovarian cancer. The mutations are not inherited, and the discovery potentially reveals a new mechanism of cancer development. http://medicalxpress.com/news/2012-12-scientists-gene-linked-breast-ovarian.html Cancer Mon, 17 Dec 2012 08:03:20 EST news274953791 Wellcome Trust researchers have discovered how the brain assesses confidence in its decisions. The findings explain why some people have better insight into their choices than others. http://medicalxpress.com/news/2012-12-brain-people-tune.html Neuroscience Sun, 09 Dec 2012 13:00:15 EST news274276208 Training human volunteers to control their own brain activity in precise areas of the brain can enhance fundamental aspects of their visual sensitivity, according to a new study. This non-invasive 'neurofeedback' approach could one day be used to improve brain function in patients with abnormal patterns of activity, for example stroke patients. http://medicalxpress.com/news/2012-12-brain-visual-sensitivity.html Neuroscience Tue, 04 Dec 2012 17:05:21 EST news273863103 (Medical Xpress)—A UK study reveals that the public find it acceptable to reward people for changing their health-related behaviour, such as smoking or weight loss, as long as it works. In the past, such incentives have provoked negative public reactions. http://medicalxpress.com/news/2012-12-rewarding-people-healthier-reveals.html Health Tue, 04 Dec 2012 06:38:15 EST news273825487 Transmission of tuberculosis between cattle and badgers has been tracked at a local scale for the first time, using a combination of bacterial whole genome DNA sequencing and mathematical modelling. The findings highlight the potential for the use of next generation sequencing as a tool for disentangling the impact of badgers on TB outbreaks in cows at the farm level. http://medicalxpress.com/news/2012-11-evidence-linking-tb-infection-cattle.html Diseases, Conditions, Syndromes Thu, 29 Nov 2012 17:38:35 EST news273433106 The discovery of the molecular pathway that drives the changes seen in the brains of Alzheimer's patients is reported today, revealing new targets for drug discovery that could be exploited to combat the disease. The study gives the most detailed understanding yet of the complex processes leading to Alzheimer's. http://medicalxpress.com/news/2012-11-discovery-molecular-pathway-alzheimer-disease.html Alzheimer's disease & dementia Tue, 20 Nov 2012 10:09:49 EST news272628571 Researchers supported by the Wellcome Trust have discovered that we use a different part of our brain to learn about social hierarchies than we do to learn ordinary information. The study provides clues as to how this information is stored in memory and also reveals that you can tell a lot about how good somebody is likely to be at judging social rank by looking at the structure of their brain. http://medicalxpress.com/news/2012-11-dog-reveals-brain-social.html Neuroscience Thu, 08 Nov 2012 12:44:57 EST news271601089 The suffering caused by the loss of a nose must be indescribable. In terms of function, a sense of smell is perhaps less important than the ability to see, hear and eat - and we can breathe through our mouth or nasal cavity. But somehow, a missing nose elicits a more profound sense of shock in other people than the sight of an eye patch. http://medicalxpress.com/news/2012-11-3d-nose.html Other Thu, 08 Nov 2012 06:50:01 EST news271578304