http://medicalxpress.com/ en-us Medical Xpress internet news portal provides the latest news on Health and Medicine. 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 A study led by researchers at the University of North Carolina indicates that a newly approved blood thinner that blocks a key component of the human blood clotting system may increase the risk and severity of certain viral infections, including flu and myocarditis, a viral infection of the heart and a significant cause of sudden death in children and young adults. http://medicalxpress.com/news/2013-04-newly-blood-thinner-susceptibility-viral.html Medical research Mon, 01 Apr 2013 13:05:02 EST news284040294 Researchers at The Scripps Research Institute (TSRI) in Jupiter, FL, have developed cutting-edge technology that can successfully screen human blood for disease markers. This tool may hold the key to better diagnosing and understanding today's most pressing and puzzling health conditions, including autoimmune diseases. http://medicalxpress.com/news/2013-03-underlines-potential-technology-disease.html Medical research Thu, 21 Mar 2013 12:51:19 EST news283089072 (HealthDay)—Studies loaded with fraudulent data may have encouraged the use of a treatment for patients in intensive care units that now appears to do more harm than good, new research shows. http://medicalxpress.com/news/2013-02-fraudulent-risky-treatment-icus.html Diseases, Conditions, Syndromes Wed, 20 Feb 2013 03:40:03 EST news280553155 A controversial component of plastic bottles and canned food linings that have helped make the world's food supply safer has recently come under attack: bisphenol A. Widely known as BPA, it has the potential to mimic the sex hormone estrogen if blood and tissue levels are high enough. Now, an analysis of almost 150 BPA exposure studies shows that in the general population, people's exposure may be many times too low for BPA to effectively mimic estrogen in the human body. http://medicalxpress.com/news/2013-02-meta-analyses-bisphenol-human-exposure-estrogenic.html Health Fri, 15 Feb 2013 15:22:48 EST news280164126 Researchers at Mayo Clinic in Florida have identified a new target to improve treatment of pancreatic ductal adenocarcinoma cancer, which accounts for more than 95 percent of pancreatic cancer cases. This fast-growing, often lethal cancer is resistant to conventional chemotherapy. The findings are published in the Jan. 3 online issue of PLOS ONE. http://medicalxpress.com/news/2013-01-scientists-molecule-pancreatic-cancer-treatment.html Cancer Thu, 03 Jan 2013 17:00:01 EST news276433930 (Medical Xpress)—There's a reason emergency personnel train for the aftermath of a dirty bomb or an explosion at a nuclear power plant. They'll be faced with a deluge of urgent tasks, such as identifying who's been irradiated, who has an injury-induced infection, and who's suffering from both. http://medicalxpress.com/news/2012-12-scientists-quick-id-people-exposed.html Medical research Mon, 17 Dec 2012 07:34:33 EST news274952067 Box jellyfish of the Chironex species are among the most venomous animals in the world, capable of killing humans with their sting. Their venom, though, which kills by rapidly punching holes in human red blood cells, can be slowed down by administering zinc, according to research published December 12 in the open access journal PLOS ONE by Angel Yanagihara from the University of Hawaii and colleagues. http://medicalxpress.com/news/2012-12-lethal-australian-jellyfish-zinc.html Medical research Wed, 12 Dec 2012 17:04:49 EST news274554273 Canadian and Italian stem cell researchers have discovered a new "master control gene" for human blood stem cells and found that manipulating its levels could potentially create a way to expand these cells for clinical use. http://medicalxpress.com/news/2012-11-stem-cell-scientists-potential-cells.html Medical research Thu, 08 Nov 2012 14:47:27 EST news271608364 EU funding has supported a major initiative designed to promote research collaboration to support control programmes for Chagas disease in central and southern America. http://medicalxpress.com/news/2012-10-chagas-diseaseaim-transmission.html Diseases, Conditions, Syndromes Thu, 04 Oct 2012 07:53:52 EST news268556024 (Medical Xpress)—University of Nottingham Malaria experts have found a way of disabling one of the many phosphatase proteins which breathe life into the malaria parasite. The result is a mutant which is unable to complete the complex life cycle crucial to its development. The discovery could help to design drugs to save thousands of lives. http://medicalxpress.com/news/2012-09-mutant-parasite-malaria-tracks.html Diseases, Conditions, Syndromes Fri, 21 Sep 2012 06:58:09 EST news267429470 Scientists at the research centre MEMBRANES at Aarhus University, Denmark, have completed an old puzzle, which since the 60s from many sides has been regarded as impossible to complete. The challenge was to solve the structure of the protecting protein complex that forms when haemoglobin is released from red cells and becomes toxic. This toxic release of haemoglobin occurs in many diseases affecting red cell stability, e.g. malaria. http://medicalxpress.com/news/2012-08-danish-scientists-blood-mystery.html Medical research Fri, 31 Aug 2012 11:08:27 EST news265630100 The deadliest form of malaria is caused the protozoan Plasmodium falciparum. During its life-cycle in human blood, the parasite P. falciparum expresses unique proteins on the surface on infected blood cells. http://medicalxpress.com/news/2012-08-human-immunity-malaria.html Diseases, Conditions, Syndromes Wed, 01 Aug 2012 12:00:02 EST news263039631 Using computational methods, Stanford University School of Medicine investigators have strongly implicated a novel gene in the triggering of type-2 diabetes. Their experiments in lab mice and in human blood and tissue samples further showed that this gene not only is associated with the disease, as predicted computationally, but is also likely to play a major causal role. http://medicalxpress.com/news/2012-04-databases-flag-gene-key-role.html Genetics Mon, 09 Apr 2012 15:00:48 EST news253186233 (Medical Xpress) -- For the first time, scientists at the University of Wisconsin-Madison have made early retina structures containing proliferating neuroretinal progenitor cells using induced pluripotent stem (iPS) cells derived from human blood. http://medicalxpress.com/news/2012-03-scientists-eye-human-blood-derived-stem.html Ophthalmology Wed, 14 Mar 2012 09:03:09 EST news250934581 Scientists working with Professor Bernd Kaina of the Institute of Toxicology at the Medical Center of Johannes Gutenberg University Mainz have demonstrated for the first time that certain cells circulating in human blood – so-called monocytes – are extremely sensitive to reactive oxygen species (ROS). http://medicalxpress.com/news/2012-02-human-immune-cells-react-sensitively.html Medical research Thu, 02 Feb 2012 10:00:23 EST news247399213 A study conducted by researchers at the Johns Hopkins Malaria Research Institute and their Zambian colleagues detected contrasting patterns of drug resistance in malaria-causing parasites taken from both humans and mosquitoes in rural Zambia. Parasites found in human blood samples showed a high prevalence for pyrimethamine-resistance, which was consistent with the class of drugs widely used to treat malaria in the region. However, parasites taken from mosquitoes themselves had very low prevalence of pyrimethamine-resistance and a high prevalence of cycloguanil-resistant mutants indicating resistance to a newer class of antimalaria drug not widely used in Zambia. http://medicalxpress.com/news/2011-11-contrasting-patterns-malaria-drug-resistance.html Diseases, Conditions, Syndromes Tue, 15 Nov 2011 16:03:04 EST news240594553 A new research technology is revealing how humans develop immunity to malaria, and could assist programs aimed at eradicating this parasitic disease. http://medicalxpress.com/news/2011-11-protein-microarrays-reveal-weapons-malaria.html Medical research Tue, 01 Nov 2011 09:17:12 EST news239357811 For the first time since stem cells were discovered here 50 years ago, scientists have isolated a human blood stem cell in its purest form – as a single stem cell capable of regenerating the entire blood system. This breakthrough opens the door to harnessing the power of these life-producing cells to treat cancer and other debilitating diseases more effectively. The study is published today in Science. http://medicalxpress.com/news/2011-07-pure-human-blood-stem-cell-discovery.html Medical research Thu, 07 Jul 2011 14:00:42 EST news229265448 A cheap, common heartworm medication that is already being used to fight other parasites in Africa could also dramatically interrupt transmission of malaria, potentially providing an inexpensive tool to fight a disease that kills almost 800,000 people each year, according to a new study published today in the July edition of the American Journal of Tropical Medicine and Hygiene. http://medicalxpress.com/news/2011-07-cheap-common-drug-malaria-transmission.html Diseases, Conditions, Syndromes Wed, 06 Jul 2011 17:34:58 EST news229192478