http://medicalxpress.com/ en-us Medical Xpress internet news portal provides the latest news on Health and Medicine. Low levels of a naturally occurring steroid are associated with an increased risk of heart and blood-vessel disease in elderly men, a new study finds. The results will be presented Saturday at The Endocrine Society's 94th Annual Meeting in Houston. http://medicalxpress.com/news/2012-06-steroid-linked-cardiovascular-disease.html Cardiology Sat, 23 Jun 2012 12:51:00 EST news259674650 (HealthDay) -- Routine newborn screening failed to identify about one-fifth of infants with an adrenal gland disorder called congenital adrenal hyperplasia, a new study has found. http://medicalxpress.com/news/2012-06-newborn-screening-adrenal-gland-disorder.html Diseases, Conditions, Syndromes Tue, 12 Jun 2012 18:20:01 EST news258741794 Even a moderate amount of weight loss can significantly reduce levels of circulating estrogens that are associated with an increased risk of breast cancer, according to a study by researchers at Fred Hutchinson Cancer Research Center – the first randomized, controlled clinical trial to test the effects of weight loss on sex hormones in overweight and obese postmenopausal women, a group at elevated risk for breast cancer. http://medicalxpress.com/news/2012-05-moderate-weight-loss-sex-hormones.html Cancer Mon, 21 May 2012 16:00:01 EST news256815765 Some types of breast cancer can be successfully treated with drugs such as tamoxifen, but treatment for a type of breast cancer more common in young and black women is still limited to radiation and general chemotherapy. Called triple negative breast cancer, this type of cancer is the focus of a 20-month, $8.6-million research project that aims to find new diagnostic tools and options for drugs. http://medicalxpress.com/news/2012-05-collaborative-clues-hard-to-treat-breast-cancer.html Cancer Wed, 16 May 2012 17:30:17 EST news256408180 Scientists are reporting a possible link between the use of sunscreen containing a certain ingredient that mimics the effects of the female sex hormone estrogen and an increased risk of being diagnosed with endometriosis, a painful condition in which uterine tissue grows outside the uterus. They describe the report, published in ACS' journal Environmental Science & Technology, as the first to examine whether such a connection may exist. http://medicalxpress.com/news/2012-05-link-sunscreen-ingredient-endometriosis.html Diseases, Conditions, Syndromes Wed, 09 May 2012 12:18:13 EST news255784672 A middle-aged man goes to see his doctor, complaining of a host of vague symptoms: He's lethargic, somewhat depressed and feeling a little anxious about his manliness. http://medicalxpress.com/news/2012-03-reality.html Sleep apnea Mon, 12 Mar 2012 12:20:01 EST news250772176 Men are four times more likely to develop liver cancer compared to women, a difference attributed to the sex hormones androgen and estrogen. Although this gender difference has been known for a long time, the molecular mechanisms by which estrogens prevent -- and androgens promote -- liver cancer remain unclear. http://medicalxpress.com/news/2012-01-gender-differences-liver-cancer-small.html Cancer Thu, 19 Jan 2012 12:56:30 EST news246200182 Researchers in Rhode Island Hospital's Cardiovascular Research Center have published two new studies focusing on the causes of arrhythmia and sudden cardiac death (SCD) when a genetic disorder is present. The studies use a first-ever genetic animal model the researchers developed in 2008 to further their understanding of a genetic disorder known as Long QT Syndrome (LQTS). The first study identified differential conditions and cellular mechanisms that can trigger SCD when LQTS is a factor, and the second study, for the first time, directly links sex hormones and the incidence of arrhythmia and SCD. Their findings are published in the Journal of Physiology and the HeartRhythm Journal. http://medicalxpress.com/news/2012-01-uncover-keys-sudden-cardiac-death.html Cardiology Tue, 17 Jan 2012 15:03:49 EST news246035019 Post-menopausal women with high levels of hormones such as estrogen or testosterone are known to have a higher risk of breast cancer. New research published in BioMed Central's open access journal Breast Cancer Research looked at eight different sex and growth hormones and found that the risk of breast cancer increased with the number of elevated hormones - each additional elevated hormone level increased risk by 16%. http://medicalxpress.com/news/2011-10-elevated-hormone-breast-cancer.html Cancer Fri, 21 Oct 2011 03:26:12 EST news238385577 A recent UT Southwestern Medical Center study found that estrogen regulates energy expenditure, appetite and body weight, while insufficient estrogen receptors in specific parts of the brain may lead to obesity. http://medicalxpress.com/news/2011-10-estrogen-brain-weight.html Medical research Thu, 20 Oct 2011 02:50:01 EST news238296281 It's no secret that women often gain weight as they get older. The sex hormone estrogen has an important, if underappreciated, role to play in those burgeoning waistlines. http://medicalxpress.com/news/2011-10-brain-estrogen.html Medical research Tue, 04 Oct 2011 13:13:06 EST news236952768 Hormone researchers at the University of Houston (UH) have their sights set on providing long-term treatment options for diabetes, obesity and cardiovascular diseases by better understanding estradiol, the most potent naturally occurring estrogen. http://medicalxpress.com/news/2011-09-hormonal-role-glucose-fat-metabolism.html Medical research Thu, 29 Sep 2011 12:32:40 EST news236518354 It's not estrogen produced by body fat that causes low levels of testosterone in type 2 diabetic men, according to a University at Buffalo study published last month in Diabetes Care. http://medicalxpress.com/news/2011-09-estradiol-fatty-tissue-doesnt-testosterone.html Medical research Wed, 28 Sep 2011 11:00:16 EST news236426406 Stockholm, Sweden: Men with prostate cancer that has spread to other parts of the body and that is resistant to hormone therapy suffer less from fatigue if they are treated with a combination of abiraterone acetate and prednisone, according to results from a phase III clinical trial presented today. http://medicalxpress.com/news/2011-09-abiraterone-acetate-fatigue-prostate-cancer.html Cancer Sun, 25 Sep 2011 13:27:28 EST news236176033 Women who use contraceptives like birth control pills experience memory changes, according to new UC Irvine research. Their ability to remember the gist of an emotional event improves, while women not using the contraceptives better retain details. http://medicalxpress.com/news/2011-09-birth-pills-affect-memory.html Neuroscience Fri, 09 Sep 2011 14:24:37 EST news234797066 (Medical Xpress) -- Teacher, pilot, nurse or engineer? Sex hormones strongly influence people's interests, which affect the kinds of occupations they choose, according to psychologists. http://medicalxpress.com/news/2011-09-sex-hormones-impact-career-choices.html Psychology & Psychiatry Thu, 01 Sep 2011 09:31:37 EST news234088279 A recent study accepted for publication in The Endocrine Society's Journal of Clinical Endocrinology & Metabolism (JCEM) found that postmenopausal women who smoke have higher androgen and estrogen levels than non-smoking women, with sex hormone levels being highest in heavy smokers. http://medicalxpress.com/news/2011-08-menopause-sex-hormone.html Health Wed, 31 Aug 2011 09:28:12 EST news234001683 There is no scientific basis for teaching boys and girls separately, according to Lise Eliot from The Chicago Medical School. Her review reveals fundamental flaws in the arguments put forward by proponents of single-sex schools to justify the need of teaching teach boys and girls separately. Eliot shows that neuroscience has identified few reliable differences between boys' and girls' brains relevant to learning or education. Her work is published online in Springer's journal Sex Roles. http://medicalxpress.com/news/2011-08-parents-misled-advocates-single-sex.html Psychology & Psychiatry Thu, 18 Aug 2011 10:28:37 EST news232882102 The sex hormone oestrogen could help protect women from cardiovascular disease by keeping the body's immune system in check, new research from Queen Mary, University of London has revealed. http://medicalxpress.com/news/2011-08-estrogen-women-cardiovascular-disease.html Cardiology Thu, 11 Aug 2011 17:31:00 EST news232302641 Researchers at National Jewish Health have discovered a type of cell that may contribute to autoimmune disease and suggests why diseases such as lupus, multiple sclerosis and rheumatoid arthritis strike women more frequently than men. The cells, a subset of immune-system B cells, make autoantibodies, which bind to and attack the body's own tissue. The researchers reported in the August 4, 2011, issue of the journal Blood, that they found higher levels of these cells in elderly female mice, young and old mice prone to autoimmune disease, and humans with autoimmune diseases. National Jewish Health has applied for a patent for a method to treat autoimmune disease by depleting these cells. http://medicalxpress.com/news/2011-08-b-cell-discovery-women-autoimmune-disease.html Medical research Thu, 04 Aug 2011 14:00:01 EST news231684243 Pharmacists of the University Jena, Germany, and partners have shown that cells from men and women react in a different manner to inflammatory stimuli. They found that in male cells the enzyme phospholipase D is less active than in the female ones. Based on these findings, the Jena pharmacists concluded that the male sex hormones play a key role in the modulation of the immune response. http://medicalxpress.com/news/2011-07-testosterone-inflammation.html Medical research Tue, 26 Jul 2011 10:24:58 EST news230894689 Researchers in the UQ School of Medicine at Princess Alexandra Hospital have made an important discovery about how the immune system reacts to rhinoviruses, the viruses that usually cause the common cold. http://medicalxpress.com/news/2011-06-immunity-common-cold-virus-sex.html Health Thu, 23 Jun 2011 05:53:08 EST news228026833