http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Scientists at the University of Rochester have discovered that the hormone estrogen plays a pivotal role in how the brain processes sounds. http://www.physorg.com/news160765483.html Medicine & Health Tue, 05 May 2009 18:05:07 EST news160765483 A new study on old rats by a Penn State researcher will shed light on the connection between estrogen deficiency, heart disease and aging in women. http://www.physorg.com/news160653607.html Medicine & Health Mon, 04 May 2009 11:02:02 EST news160653607 If you're like many women, you may be reluctant to take hormones during the menopausal years because past studies seemed to recommend against it. http://www.physorg.com/news160386943.html Medicine & Health Fri, 01 May 2009 08:56:08 EST news160386943 A study in the May 1 issue of the journal SLEEP suggests that babies born to mothers with depression are more likely to suffer from significant sleep disturbances at 2 weeks postpartum that continue until 6 months of age. Findings of the study are of particular importance, as sleep disturbances in infancy may result in increased risk for developing early-onset depression in childhood. http://www.physorg.com/news160384516.html Medicine & Health Fri, 01 May 2009 08:15:39 EST news160384516 An in-depth proteomic analysis of the sera of 50 participants from the Women's Health Initiative (WHI) hormone replacement therapy trial provides some explanations for the trial's clinical results. The study, published in Biomed Central's open access journal Genome Medicine, shows that estrogen upregulates proteins involved in several major body processes. http://www.physorg.com/news160213500.html Medicine & Health Wed, 29 Apr 2009 08:47:37 EST news160213500 Shirly Sieh, a PhD student at IHBI, is studying the way cancer cells escape from the prostate through the bloodstream to form tumour colonies, most often in the spine and long bones. http://www.physorg.com/news159789739.html Medicine & Health Fri, 24 Apr 2009 11:02:50 EST news159789739 Many studies determine hormone levels in the blood as a marker of breast cancer risk. But it hasn't been known whether these blood tests reflect what is happening in the breast tissue, where certain hormones fuel cancer. Researchers at Georgetown University Medical Center's (GUMC) Lombardi Comprehensive Cancer Center found that measuring the levels of four hormones in blood known to be linked to breast cancer doesn't necessarily reflect the levels of these hormones in the breast tissue itself. http://www.physorg.com/news159647853.html Medicine & Health Wed, 22 Apr 2009 19:38:34 EST news159647853 The connection between the body, mind and spirit has been the subject of conventional scientific inquiry for some 20 years. The notion that psychosocial and societal considerations have a role in maintaining health and preventing disease became crystallized as a result of the experiences of a layman, Norman Cousins. http://www.physorg.com/news159169888.html Medicine & Health Fri, 17 Apr 2009 06:52:08 EST news159169888 Julie Helmrich had answered questions about sleep problems, chronic lateness and an obsession with masturbation when she paused to read aloud the next query from a customer at Cranky Al's Bakery and Pizza. http://www.physorg.com/news159107480.html Medicine & Health Thu, 16 Apr 2009 13:32:12 EST news159107480 Researchers at the Joslin Diabetes Center have demonstrated that adult humans still have a type of "good" fat previously believed to be present only in babies and children. Unlike white fat, which stores energy and comprises most body fat, this good fat, called brown fat, is active in burning calories and using energy. The finding, reported in the April 9th issue of The New England Journal of Medicine, could pave the way for new treatments both for obesity and type 2 diabetes. http://www.physorg.com/news158434060.html Medicine & Health Wed, 08 Apr 2009 18:28:49 EST news158434060 The ratio of women to men with the autoimmune disease systemic lupus erythematosus (SLE) is nine to one and the incidence increases after puberty. Hormones secreted by the body are therefore believed to play an important role in the origins of the disease. A new large, population-based observational study found that the use of oral contraceptives was associated with an increased risk of SLE, particularly among women who had recently started taking them. The study was published in the April issue of Arthritis Care & Research. http://www.physorg.com/news158327957.html Medicine & Health Tue, 07 Apr 2009 12:59:34 EST news158327957 A woman who ate a grapefruit each day almost had to have her leg amputated because of a dangerous blood clot, according to an unusual case study reported in the Lancet. http://www.physorg.com/news157918475.html Medicine & Health Thu, 02 Apr 2009 19:16:35 EST news157918475 A particular nuclear hormone receptor called DAF-12 and molecules called microRNAs in the let-7 family form a molecular switch that encourages cells in the larvae of a model worm to shift to a more developed state, said a consortium led by researchers from Baylor College of Medicine in a report that appears online today in the journal Science. http://www.physorg.com/news157901074.html Medicine & Health Thu, 02 Apr 2009 14:25:08 EST news157901074 Some of the symptoms of the autistic condition Asperger Syndrome, such as a need for routine and resistance to change, could be linked to levels of the stress hormone cortisol, suggests new research led by the University of Bath. http://www.physorg.com/news157869665.html Medicine & Health Thu, 02 Apr 2009 05:41:45 EST news157869665 Relaxine, a naturally occurring hormone that helps women adapt to pregnancy, is showing promise as a treatment for acute heart failure, a new study has found. http://www.physorg.com/news157616798.html Medicine & Health Mon, 30 Mar 2009 07:27:51 EST news157616798 Genes taken from fireflies and jellyfish are literally shedding light on possible causes of infertility and autoimmune diseases in humans. http://www.physorg.com/news157369371.html Medicine & Health Fri, 27 Mar 2009 10:45:07 EST news157369371 More and more people are being inappropriately diagnosed and treated for underactivity of the thyroid gland (known as primary hypothyroidism), warn doctors in an editorial published on bmj.com today. http://www.physorg.com/news157351662.html Medicine & Health Fri, 27 Mar 2009 05:48:37 EST news157351662 (AP) -- Two big prostate cancer studies were intended to settle the question of whether screening for the disease really does save lives. Now the long-awaited results are in - but the debate goes on. http://www.physorg.com/news156597154.html Medicine & Health Wed, 18 Mar 2009 12:16:15 EST news156597154 New research suggests the hormone kisspeptin shows promise as a potential new treatment for infertility. The research is being presented at the annual Society for Endocrinology BES meeting in Harrogate. Scientists led by Dr Waljit Dhillo from Imperial College London, have shown that giving kisspeptin to women with infertility can activate the release of sex hormones which control the menstrual cycle. This research could lead to a new fertility therapy for women with low sex hormone levels. http://www.physorg.com/news156449617.html Medicine & Health Mon, 16 Mar 2009 19:14:01 EST news156449617 Current steroid (testosterone) doping tests should be scrapped for international sport, because they ignore vital ethnic differences in hormone activity, suggests research published ahead of print in the British Journal of Sports Medicine. http://www.physorg.com/news156060554.html Medicine & Health Thu, 12 Mar 2009 07:09:40 EST news156060554 Women who have more years of fertility (the time from first menstruation to menopause) have a lower risk of developing Parkinson`s disease than women with fewer years, according to a large, new study by researchers at Albert Einstein College of Medicine of Yeshiva University. http://www.physorg.com/news154803926.html Medicine & Health Wed, 25 Feb 2009 17:07:41 EST news154803926 A drug prescribed for male and female infertility and menstrual disorders could hold the key to a more effective treatment for alcoholism, according to a study by researchers at the UCSF-affiliated Ernest Gallo Clinic and Research Center. http://www.physorg.com/news154634122.html Medicine & Health Mon, 23 Feb 2009 17:55:45 EST news154634122 Breast-cancer rates fell steeply and swiftly among postmenopausal women who quit combination hormones in 2002 after warnings about its potential hazards. http://www.physorg.com/news153063400.html Medicine & Health Thu, 05 Feb 2009 13:37:02 EST news153063400 Postmenopausal women who take combined estrogen plus progestin menopausal hormone therapy for at least five years double their annual risk of breast cancer, according to new analyses from a major study that clearly establishes a link between hormone use and breast cancer, Stanford researchers say. The multi-center study also found that women on hormones can quickly reduce their risks of cancer simply by stopping the therapy. http://www.physorg.com/news152993944.html Medicine & Health Wed, 04 Feb 2009 18:19:34 EST news152993944 Women who have higher levels of a hormone produced by the placenta midway through pregnancy appear more likely to develop postpartum depression, a study authored by a UC Irvine researcher finds. http://www.physorg.com/news152803062.html Medicine & Health Mon, 02 Feb 2009 13:17:58 EST news152803062 A new study makes important new findings on the role of hormone use on the risk of breast cancer, confirming that the use of estrogen plus progesterone increases the risk of both ductal and lobular breast cancer far more than estrogen-only; suggesting a two-year "safe" period for the use of estrogen and progesterone; and finding that the increased risk for ductal cancers observed in long-term past users of hormone replacement therapy drops off substantially two years after hormone use is stopped. The study appears in Cancer, a peer-reviewed journal of the American Cancer Society. http://www.physorg.com/news152793278.html Medicine & Health Mon, 02 Feb 2009 10:35:32 EST news152793278 For patients with a particularly aggressive form of skin cancer - malignant melanoma - stress, including that which comes from simply hearing that diagnosis, might amplify the progression of their disease. http://www.physorg.com/news152540593.html Medicine & Health Fri, 30 Jan 2009 12:23:46 EST news152540593 Huijing Xia, PhD, a postdoctoral research associate in the lab of Eric Lazartigues, PhD, Assistant Professor of Pharmacology at LSU Health Sciences Center New Orleans, is the lead author on a paper reporting that a recently identified enzyme in the brain plays a critically important role in the central regulation of blood pressure. http://www.physorg.com/news152538525.html Medicine & Health Fri, 30 Jan 2009 11:49:18 EST news152538525 Recent studies suggest that human breast cancer risk is increased by outside exposure to the hormone progestin, such as during hormone replacement therapy. Now, a University of Missouri study suggests that PRIMA-1, a small molecule drug that targets the most common mutated gene, p53, in human cancer cells, has potential as a novel chemotherapeutic treatment for progestin-accelerated human breast cancer. http://www.physorg.com/news152375778.html Medicine & Health Wed, 28 Jan 2009 14:36:43 EST news152375778 Mice with increased levels of a natural brain chemical don`t gain weight when fed a high-fat diet, researchers at UT Southwestern Medical Center have found. http://www.physorg.com/news152344953.html Biology Wed, 28 Jan 2009 06:03:05 EST news152344953