http://medicalxpress.com/ en-us Medical Xpress internet news portal provides the latest news on Health and Medicine. (HealthDay) -- The first DNA test to help doctors treat a common viral infection in people who have had a solid organ transplant has been approved by the U.S. Food and Drug Administration. http://medicalxpress.com/news/2012-07-common-infection-transplant-patients.html Medications Thu, 05 Jul 2012 18:00:01 EST news260726189 (HealthDay) -- Researchers report that a new DNA test may be able to spot an increased risk of autism in children as young as 6 months old. http://medicalxpress.com/news/2012-05-genetic-autism.html Pediatrics Wed, 16 May 2012 15:30:02 EST news256399260 This weekend, many mothers-to-be celebrated Mother's Day, a welcome relief from the inherent stresses of pregnancy. http://medicalxpress.com/news/2012-05-mothers-saliva-stories-stress.html Pediatrics Mon, 14 May 2012 08:03:41 EST news256201390 EASL today announced the publication of a new clinical practice guideline (CPG) in the area of Alcoholic Liver Disease (ALD), bringing the number of CPGs published to date to eight. http://medicalxpress.com/news/2012-04-clinical-guidelines-alcoholic-liver-disease.html Diseases, Conditions, Syndromes Thu, 19 Apr 2012 07:01:38 EST news254037664 The culprit behind a failed hip or knee replacements might be found in the mouth. DNA testing of bacteria from the fluid that lubricates hip and knee joints had bacteria with the same DNA as the plaque from patients with gum disease and in need of a joint replacement. http://medicalxpress.com/news/2012-04-joint-failures-potentially-linked-oral.html Arthritis & Rheumatism Wed, 18 Apr 2012 11:38:12 EST news253967876 Developed in Canada and conducted by researchers from the University of Ottawa Heart Institute, in partnership with Spartan Bioscience, the world's first bedside genetic test has received acknowledgment by The Lancet, the world's leading general medical journal. http://medicalxpress.com/news/2012-03-world-bedside-genetic-green-lancet.html Cardiology Thu, 29 Mar 2012 11:21:58 EST news252238889 Results of two studies suggest that a new, investigational colorectal cancer screening test developed in a collaboration between Mayo Clinic and Exact Sciences Inc. of Madison, Wis., is highly accurate and significantly more sensitive than other noninvasive tests at detecting precancerous tumors (adenomas) and early-stage cancer. These findings have important implications for clinicians and tens of thousands of Americans. Early detection is a key driver of better outcomes for colorectal cancer -- a disease that affects 1 in every 17 persons and is the second-leading cause of U.S. cancer deaths. http://medicalxpress.com/news/2012-01-greater-accuracy-early-colorectal-cancer.html Cancer Thu, 19 Jan 2012 10:14:01 EST news246190417 Official DNA testing procedures were not properly followed in more than 400 investigations in Singapore, the city-state's authorities have admitted. http://medicalxpress.com/news/2012-01-singapore-dna-procedures.html Other Wed, 04 Jan 2012 09:43:29 EST news244892599 One of the causes of resistance to cancer treatment in children is now beginning to be elucidated. Acute lymphoblastic leukemia patients with a particular form of the ATF5 gene are at higher risk of having a relapse when treated with E. coli asparaginase, a key chemotherapy drug for this type of leukemia. This is what a study by Dr. Maja Krajinovic published in the Blood, the journal of the American Society of Hematology, reveals Dr. Krajinovic is an investigator at the Sainte-Justine University Hospital Research Center, which is affiliated with the University of Montreal. http://medicalxpress.com/news/2011-10-gene-responsible-relapses-young-leukemia.html Cancer Wed, 26 Oct 2011 13:33:50 EST news238854821 Molecular DNA testing methods offer clinicians powerful tools that serve to confirm or identify disease diagnoses. High sensitivity and high specificity, however, are frequently a challenge to achieve with these methods. In a study scheduled for publication in the November issue of The Journal of Molecular Diagnostics, researchers describe a new, robust technique that holds promise for identifying trace mutant DNA sequences (signals) in an overwhelming population of unmutated DNA (noise). http://medicalxpress.com/news/2011-10-method-mutant-dnas.html Medical research Tue, 11 Oct 2011 12:06:31 EST news237553584 Soon a simple blood test will be able to tell newly pregnant women if they are carrying a child with Down syndrome - raising the prospect, and perhaps peril, of a world with fewer imperfections. http://medicalxpress.com/news/2011-09-prenatal-blood-fetal-dna-ethical.html Genetics Fri, 16 Sep 2011 14:50:01 EST news235392099 As a noninvasive method of determining the sex of a fetus, tests using cell-free fetal DNA obtained from the mother's blood after 7 weeks gestation performed well, while urine-based tests appear to be unreliable, according to a review and analysis of previous studies, reported in the August 10 issue of JAMA. http://medicalxpress.com/news/2011-08-dna-motherrsquos-blood-sex-fetus.html Health Tue, 09 Aug 2011 16:30:01 EST news232123673 A new tick-borne bacterium infecting humans with ehrlichiosis has been discovered in Wisconsin and Minnesota. It was identified as a new strain of bacteria through DNA testing conducted at Mayo Clinic. The findings appear in the Aug. 4 edition of the New England Journal of Medicine. http://medicalxpress.com/news/2011-08-mayo-clinic-bacterium-tick-borne-illness.html Diseases, Conditions, Syndromes Thu, 04 Aug 2011 03:40:01 EST news231646668 Two research studies in this week's PLoS Medicine suggest that a new automated DNA test for tuberculosis (Xpert MTB/RIF), which can detect TB within 2 hours and has been endorsed by the World Health Organization, can significantly increase TB detection rate compared to other tests, particularly in HIV positive patients who have a high risk of being infected with TB, including multidrug resistant TB. An accompanying Essay and Perspective highlight the economic challenges and implications of such diagnostic tests. http://medicalxpress.com/news/2011-07-tb-drug-resistance-investment.html Diseases, Conditions, Syndromes Tue, 26 Jul 2011 17:21:52 EST news230919693 Researchers have identified an elusive gene responsible for Gray Platelet Syndrome, an extremely rare blood disorder in which only about 50 known cases have been reported. As a result, it is hoped that future cases will be easier to diagnose with a DNA test. http://medicalxpress.com/news/2011-07-anglo-french-team-elusive-gene-platelets.html Genetics Mon, 25 Jul 2011 13:05:37 EST news230817906 A groundbreaking new test for male infertility, which will save time, money and heartache for couples around the world, has been developed at Queen's University Belfast. http://medicalxpress.com/news/2011-06-groundbreaking-male-infertility-millions.html Medical research Mon, 06 Jun 2011 10:11:54 EST news226573902 Pancreatic cancer has one of the highest mortality rates of any of the major cancers, and of the 43,000-plus Americans diagnosed with the disease each year, more than 94 percent die within five years of diagnosis. One reason for this high number of deaths is a lack of effective screening tools for catching the disease early. Now, in an effort to try to gain the upper hand on this deadly form of cancer, Mayo Clinic researchers believe they have found a new way to test for pancreatic cancer with DNA testing of patients' stool samples. The research was presented at the 2011 Digestive Disease Week conference, held May 7 in Chicago. http://medicalxpress.com/news/2011-05-mayo-clinic-noninvasive-pancreatic-cancer.html Cancer Wed, 11 May 2011 10:43:55 EST news224329415