http://www.sciencedaily.com/news/health_medicine/hormone_disorders/ Read the latest research on endocrinology. Learn about hormone disorders, new hormone treatment options, hormone therapy and more. en-us Sat, 26 May 2012 13:05:01 EDT Sat, 26 May 2012 13:05:01 EDT 60 http://www.sciencedaily.com/images/logosmall.gif http://www.sciencedaily.com/news/health_medicine/hormone_disorders/ For more science articles, visit ScienceDaily. http://www.sciencedaily.com/releases/2012/05/120516195600.htm Researchers have demonstrated that a hormone-depleting drug approved for the treatment of metastatic prostate cancer can help eliminate or nearly eliminate tumors in many patients with aggressive cancers that have yet to spread beyond the prostate, according to a new clinical study. Wed, 16 May 2012 19:56:56 EDT http://www.sciencedaily.com/releases/2012/05/120516195600.htm http://www.sciencedaily.com/releases/2012/04/120426110255.htm Scientists have gained new insight into the signaling paths that control the body's insulin production. This is important knowledge with respect to their final goal: The conversion of stem cells into insulin-producing beta cells that can be implanted into patients who need them. Thu, 26 Apr 2012 11:02:02 EDT http://www.sciencedaily.com/releases/2012/04/120426110255.htm http://www.sciencedaily.com/releases/2012/04/120423184203.htm Breast cancer cells become increasingly aggressive the longer they are exposed to small concentrations of cadmium, a heavy metal commonly found in cosmetics, food, water and air particles. Mon, 23 Apr 2012 18:42:42 EDT http://www.sciencedaily.com/releases/2012/04/120423184203.htm http://www.sciencedaily.com/releases/2012/04/120403193832.htm The hormone estrogen may help promote lung cancer -- including compounding the effects of tobacco smoke on the disease -- pointing towards potential new therapies that target the hormone metabolism, according to new research. Tue, 03 Apr 2012 19:38:38 EDT http://www.sciencedaily.com/releases/2012/04/120403193832.htm http://www.sciencedaily.com/releases/2012/04/120401134933.htm In a landmark study, researchers have linked the long-term use of estrogen plus progesterone and estrogen-only hormone therapy with a higher risk for developing breast cancer. Sun, 01 Apr 2012 13:49:49 EDT http://www.sciencedaily.com/releases/2012/04/120401134933.htm http://www.sciencedaily.com/releases/2012/03/120312101451.htm The world’s tallest man appears to have stopped growing following treatment at the University of Virginia Medical Center, earning the medical center a mention in the 2012 Guinness World Records. Mon, 12 Mar 2012 10:14:14 EDT http://www.sciencedaily.com/releases/2012/03/120312101451.htm http://www.sciencedaily.com/releases/2012/02/120228190932.htm As soon as women quit hormone therapy, their rates of new breast cancer decline, supporting the hypothesis that stopping hormones can lead to tumor regression, according to a new report. Tue, 28 Feb 2012 19:09:09 EST http://www.sciencedaily.com/releases/2012/02/120228190932.htm http://www.sciencedaily.com/releases/2012/01/120130131501.htm Sleeping disorders have been known for some years to increase the risk of diabetes. Scientists have now linked a gene that plays a key role in synchronizing biological rhythms to type two diabetes. Mon, 30 Jan 2012 13:15:15 EST http://www.sciencedaily.com/releases/2012/01/120130131501.htm http://www.sciencedaily.com/releases/2012/01/120123163350.htm Exposure to iodinated contrast media during imaging procedures is associated with changes in thyroid function, and increased risk of developing hyperthyroidism, according to a new report. Mon, 23 Jan 2012 16:33:33 EST http://www.sciencedaily.com/releases/2012/01/120123163350.htm http://www.sciencedaily.com/releases/2011/12/111213190019.htm Scientist have made a major breakthrough by unraveling the inner workings of melatonin, also known as the "sleep hormone." The research reveals the key role played by the melatonin receptor in the brain that promotes deep, restorative sleep. This discovery led the researchers to develop a novel drug called UCM765, which selectively activates this receptor. The results may pave the way for the development of new and promising treatments for insomnia. Tue, 13 Dec 2011 19:00:00 EST http://www.sciencedaily.com/releases/2011/12/111213190019.htm http://www.sciencedaily.com/releases/2011/12/111213132003.htm Altered insulin signaling, observed for the first time in the pancreases of human Type 2 diabetics, impairs the cells that produce insulin. Tue, 13 Dec 2011 13:20:20 EST http://www.sciencedaily.com/releases/2011/12/111213132003.htm http://www.sciencedaily.com/releases/2011/11/111129092413.htm In a new study, growth hormone replacement for six months was found to increase bone formation in abdominally obese women. Tue, 29 Nov 2011 09:24:24 EST http://www.sciencedaily.com/releases/2011/11/111129092413.htm http://www.sciencedaily.com/releases/2011/11/111122153854.htm Researchers have discovered the novel protective role dendritic cells play in the pancreas. The new study shows dendritic cells can safeguard the pancreas against acute pancreatitis, a sudden dangerous swelling and inflammation of the pancreas gland. Tue, 22 Nov 2011 15:38:38 EST http://www.sciencedaily.com/releases/2011/11/111122153854.htm http://www.sciencedaily.com/releases/2011/11/111114093404.htm The possibility that functional, three-dimensional tissues and organs may be derived from pluripotent cells, such as embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs), represents one of the grand challenges of stem cell research, but is also one of the fundamental goals of the emerging field of regenerative medicine. New research has shown that when ES cells are cultured under the appropriate conditions, they can be driven to self-organize into complex, three-dimensional tissue-like structures that closely resemble their physiological counterparts, a remarkable advance for the field. Mon, 14 Nov 2011 09:34:34 EST http://www.sciencedaily.com/releases/2011/11/111114093404.htm http://www.sciencedaily.com/releases/2011/11/111113141308.htm Researchers have shown how estrogen receptor-positive breast cancer tumors become resistant to tamoxifen, the only approved hormonal therapy for premenopausal patients with this type of breast cancer. They also found that introducing a novel histone deacetylase inhibitor in hormone therapy treatment can overcome resistance to hormonal therapy. Sun, 13 Nov 2011 14:13:13 EST http://www.sciencedaily.com/releases/2011/11/111113141308.htm http://www.sciencedaily.com/releases/2011/11/111102125551.htm Pediatric researchers who tested newborn animals with an existing human drug used in adults with diabetes report that this drug, when given very early in life, prevents diabetes from developing in adult animals. If this finding can be repeated in humans, it may become a way to prevent at-risk infants from developing Type 2 diabetes. Wed, 02 Nov 2011 12:55:55 EDT http://www.sciencedaily.com/releases/2011/11/111102125551.htm http://www.sciencedaily.com/releases/2011/11/111102125545.htm Examining the chin and upper and lower abdomen is a reliable, minimally invasive way to screen for excessive hair growth in women, a key indicator of too much male hormone, researchers report. Wed, 02 Nov 2011 12:55:55 EDT http://www.sciencedaily.com/releases/2011/11/111102125545.htm http://www.sciencedaily.com/releases/2011/11/111101141347.htm Within many hormone-receptor positive breast cancers lives a subpopulation of receptor-negative cells – knock down the hormone-receptor positive cells with anti-estrogen drugs and you may inadvertently promote tumor takeover by more dangerous, receptor-negative cells. A new study describes how to switch these receptor-negative cells back to a state that can be targeted by existing hormone therapies. Tue, 01 Nov 2011 14:13:13 EDT http://www.sciencedaily.com/releases/2011/11/111101141347.htm http://www.sciencedaily.com/releases/2011/10/111027150200.htm People who use over-the-counter "thyroid support'' supplements may be putting their health at risk, according to a new study. The supplements contain varying amounts of two different kinds of thyroid hormones apparently derived in large part from chopped up animal thyroid glands, says an endocrinologist. Thu, 27 Oct 2011 15:02:02 EDT http://www.sciencedaily.com/releases/2011/10/111027150200.htm http://www.sciencedaily.com/releases/2011/10/111021125153.htm New research advances a strategy for taming the side effects and enhancing the therapeutic benefits of steroids and other medications that work by disrupting the activity of certain hormones. Fri, 21 Oct 2011 12:51:51 EDT http://www.sciencedaily.com/releases/2011/10/111021125153.htm http://www.sciencedaily.com/releases/2011/10/111021074738.htm 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 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 percent. Fri, 21 Oct 2011 07:47:47 EDT http://www.sciencedaily.com/releases/2011/10/111021074738.htm http://www.sciencedaily.com/releases/2011/10/111020025648.htm Antineoplastic agents such as immunotherapies and targeted therapies that specifically target signaling pathways in cancer cells are associated with thyroid dysfunction in 20-50 percent of cancer patients taking them, which can adversely affect patients' quality of life, according to a new study. Thu, 20 Oct 2011 02:56:56 EDT http://www.sciencedaily.com/releases/2011/10/111020025648.htm http://www.sciencedaily.com/releases/2011/10/111020024133.htm A recent 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. Thu, 20 Oct 2011 02:41:41 EDT http://www.sciencedaily.com/releases/2011/10/111020024133.htm http://www.sciencedaily.com/releases/2011/10/111018092350.htm A new discovery might explain why some premature infants fail to respond to existing treatments for a deadly respiratory distress syndrome and offers clues for new ways to treat the breathing disorder. Tue, 18 Oct 2011 09:23:23 EDT http://www.sciencedaily.com/releases/2011/10/111018092350.htm http://www.sciencedaily.com/releases/2011/10/111017124243.htm A protein in the nucleus of breast cancer cells that plays a role in fueling the growth of aggressive tumors may be a good target for new drugs, reports a research team. Mon, 17 Oct 2011 12:42:42 EDT http://www.sciencedaily.com/releases/2011/10/111017124243.htm http://www.sciencedaily.com/releases/2011/10/111014104950.htm Post-menopausal women who experience new onset breast tenderness after starting combination hormone therapy may have an increased risk of breast cancer compared to women who don't experience breast tenderness, a new study shows. Fri, 14 Oct 2011 10:49:49 EDT http://www.sciencedaily.com/releases/2011/10/111014104950.htm http://www.sciencedaily.com/releases/2011/10/111004123600.htm 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. Now, researchers have traced those hormonal effects on metabolism to different parts of the brain. The findings may lead to the development of highly selective hormone replacement therapies that could be used to combat obesity or infertility in women without the risks for heart disease and breast cancer, the researchers say. Tue, 04 Oct 2011 12:36:36 EDT http://www.sciencedaily.com/releases/2011/10/111004123600.htm http://www.sciencedaily.com/releases/2011/10/111003080421.htm A recent study found that perinatal exposure to environmentally relevant doses of bisphenol A (BPA) alters long-term hormone response and breast development in mice that may increase the propensity to develop cancer. Mon, 03 Oct 2011 08:04:04 EDT http://www.sciencedaily.com/releases/2011/10/111003080421.htm http://www.sciencedaily.com/releases/2011/09/110929122936.htm Hormone researchers 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. They now believe that this estrogen hormone is a prominent regulator of several body functions in both females and males. Thu, 29 Sep 2011 12:29:29 EDT http://www.sciencedaily.com/releases/2011/09/110929122936.htm http://www.sciencedaily.com/releases/2011/09/110928125407.htm Researchers have identified a key regulator that controls the speed of development in the fruit fly. When the researchers blocked the function of this regulator, animals sped up their rate of development and reached maturity much faster than normal. Wed, 28 Sep 2011 12:54:54 EDT http://www.sciencedaily.com/releases/2011/09/110928125407.htm http://www.sciencedaily.com/releases/2011/09/110927073201.htm Women taking postmenopausal hormone replacement therapy (HRT) may have an increased risk of severe asthma attacks requiring hospitalization, scientists warn. Tue, 27 Sep 2011 07:32:32 EDT http://www.sciencedaily.com/releases/2011/09/110927073201.htm http://www.sciencedaily.com/releases/2011/09/110921115917.htm Medical researchers in the UK have come a step closer to understanding how to stop breast cancers from coming back. Wed, 21 Sep 2011 11:59:59 EDT http://www.sciencedaily.com/releases/2011/09/110921115917.htm http://www.sciencedaily.com/releases/2011/09/110917082746.htm Two newer drugs used to treat Type 2 diabetes could be linked to a significantly increased risk of developing pancreatitis and pancreatic cancer, and one could also be linked to an increased risk of thyroid cancer, according to a new study. Sat, 17 Sep 2011 08:27:27 EDT http://www.sciencedaily.com/releases/2011/09/110917082746.htm http://www.sciencedaily.com/releases/2011/09/110913152933.htm Researchers have found that thyroid-stimulating hormone (TSH), a hormone produced in the anterior pituitary gland that regulates endocrine function in the thyroid gland, can promote bone growth independent of its usual thyroid functions. The research suggests that TSH, or drugs that mimic its affect on bone, may be key to possible future treatments for osteoporosis and other conditions involving bone loss, such as cancer. Tue, 13 Sep 2011 15:29:29 EDT http://www.sciencedaily.com/releases/2011/09/110913152933.htm http://www.sciencedaily.com/releases/2011/09/110909074951.htm Researchers have discovered a hormone that can predict early death in kidney patients. Fri, 09 Sep 2011 07:49:49 EDT http://www.sciencedaily.com/releases/2011/09/110909074951.htm http://www.sciencedaily.com/releases/2011/09/110906144030.htm Researchers have demonstrated that the loss of a key protein that regulates estrogen and immune activity in the body could lead to aspects of metabolic syndrome, a combination of conditions that can cause Type 2 diabetes, atherosclerosis and cancer. Tue, 06 Sep 2011 14:40:40 EDT http://www.sciencedaily.com/releases/2011/09/110906144030.htm http://www.sciencedaily.com/releases/2011/08/110831205951.htm Breast cancer patients over the age of 60 with early-stage, hormone-responsive small tumors who forgo adjuvant endocrine, also called hormonal therapy, are not at an increased risk of mortality compared to women of the same age without breast cancer, according to a new study. Wed, 31 Aug 2011 20:59:59 EDT http://www.sciencedaily.com/releases/2011/08/110831205951.htm http://www.sciencedaily.com/releases/2011/08/110831093937.htm A recent study 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. Wed, 31 Aug 2011 09:39:39 EDT http://www.sciencedaily.com/releases/2011/08/110831093937.htm http://www.sciencedaily.com/releases/2011/08/110822182926.htm Researchers are working to develop possible new treatments for breast and colon cancer. They are now exploring the role of estrogen hormones. More specifically, they have examined regulatory molecules called estrogen receptors, which are the tools that allow estrogen and related molecules to act in the cell. Mon, 22 Aug 2011 18:29:29 EDT http://www.sciencedaily.com/releases/2011/08/110822182926.htm http://www.sciencedaily.com/releases/2011/08/110815162329.htm During thyroidectomy (surgery to remove the thyroid gland), the technique surgeons use to identify an important nerve appears to make a difference in terms of complications such as impairment of the parathyroid glands (which make a hormone that controls calcium levels), according to a new report. Mon, 15 Aug 2011 16:23:23 EDT http://www.sciencedaily.com/releases/2011/08/110815162329.htm http://www.sciencedaily.com/releases/2011/08/110810093826.htm Pregnant women in Northern California have the highest PBDE flame retardant exposures reported to date among pregnant women worldwide. A new article describes some of the first evidence from humans that certain flame retardants may interfere with thyroid hormone signaling during pregnancy, which is critical to brain development. Wed, 10 Aug 2011 09:38:38 EDT http://www.sciencedaily.com/releases/2011/08/110810093826.htm http://www.sciencedaily.com/releases/2011/08/110809132228.htm A newly-identified protein may hold the key to keeping appetite and blood sugar in check, according to a new study. Researchers found that rats administered with nesfatin-1 ate less, used more stored fat and became more active. In addition, the protein stimulated insulin secretion from the pancreatic beta cells of both rats and mice. Tue, 09 Aug 2011 13:22:22 EDT http://www.sciencedaily.com/releases/2011/08/110809132228.htm http://www.sciencedaily.com/releases/2011/08/110809132222.htm Thyroid nodules affect nearly 13 million Americans and are a result of abnormal cell growth on the gland. Until recently, the only way to remove nodules and rule out cancer was through surgery that required a five centimeter incision across the front of the neck. Today however, a new option exists that allows surgeons to access the neck through the armpit, allowing for a biopsy of tissue with no visible scar. Tue, 09 Aug 2011 13:22:22 EDT http://www.sciencedaily.com/releases/2011/08/110809132222.htm http://www.sciencedaily.com/releases/2011/08/110802113616.htm Prolonged estrogen deprivation in aging rats dramatically reduces the number of brain receptors for the hormone as well as its ability to prevent strokes, researchers report. However the damage is forestalled if estrogen replacement begins shortly after hormone levels drop, according to a new study. Tue, 02 Aug 2011 11:36:36 EDT http://www.sciencedaily.com/releases/2011/08/110802113616.htm http://www.sciencedaily.com/releases/2011/07/110727131421.htm A new study finds that practicing yoga reduces the physical and psychological symptoms of chronic pain in women with fibromyalgia. The study is the first to look at the effects of yoga on cortisol levels in women with fibromyalgia. Participants' saliva revealed elevated levels of total cortisol following a program of 75 minutes of hatha yoga twice weekly over the course of eight weeks. Wed, 27 Jul 2011 13:14:14 EDT http://www.sciencedaily.com/releases/2011/07/110727131421.htm http://www.sciencedaily.com/releases/2011/07/110727121712.htm Geneticists have made an unexpected discovery on hormone secretion. Contrary to common belief, the researchers found that pituitary cells are organized in structured networks. Wed, 27 Jul 2011 12:17:17 EDT http://www.sciencedaily.com/releases/2011/07/110727121712.htm http://www.sciencedaily.com/releases/2011/07/110726111106.htm Adding hormone therapy to radiation therapy has been proven in randomized clinical trials to improve overall survival for men with intermediate- and high-risk prostate cancer. However, adding hormone therapy may reduce overall survival in men with pre-existing heart conditions, even if they have high-risk prostate cancer according to a new study. Tue, 26 Jul 2011 11:11:11 EDT http://www.sciencedaily.com/releases/2011/07/110726111106.htm http://www.sciencedaily.com/releases/2011/07/110726111057.htm Menopause has little to no impact on whether women become more susceptible to diabetes, according to a one-of-a-kind study that provides good news for older women. Postmenopausal women had no higher risk for diabetes whether they experienced natural menopause or had their ovaries removed, according to the U.S. national clinical trial of women, ages 40 to 65. Tue, 26 Jul 2011 11:10:10 EDT http://www.sciencedaily.com/releases/2011/07/110726111057.htm http://www.sciencedaily.com/releases/2011/07/110725123707.htm Emerging data clarifying the risks of insufficient thyroid activity during pregnancy on the health of the mother and fetus, and on the future intellectual development of the child, have led to new clinical guidelines for diagnosing and managing thyroid disease during this critical period. Mon, 25 Jul 2011 12:37:37 EDT http://www.sciencedaily.com/releases/2011/07/110725123707.htm http://www.sciencedaily.com/releases/2011/07/110719072811.htm A new study that was prompted by recent reports of an increase in cases of congenital hypothyroidism in the United States, and aimed at assessing the incidence of this condition among Quebec newborns, suggests that the increase is entirely artifactual. Tue, 19 Jul 2011 07:28:28 EDT http://www.sciencedaily.com/releases/2011/07/110719072811.htm http://www.sciencedaily.com/releases/2011/07/110712094048.htm New research finds that alterations of meal-related gut hormone signals may contribute to the overall effects of exercise to help manage body weight. Tue, 12 Jul 2011 09:40:40 EDT http://www.sciencedaily.com/releases/2011/07/110712094048.htm http://www.sciencedaily.com/releases/2011/07/110711131614.htm A link between chemicals called phthalates and thyroid hormone levels was recently confirmed in the first large-scale and nationally representative study of phthalates and BPA in relation to thyroid function in humans. Mon, 11 Jul 2011 13:16:16 EDT http://www.sciencedaily.com/releases/2011/07/110711131614.htm http://www.sciencedaily.com/releases/2011/07/110711131324.htm Although it sounds like a case of gender confusion on a molecular scale, the male hormone androgen spurs the growth of some breast tumors in women. In a new study, scientists provide the first details of the cancer cell machinery that carries out the hormone's relentless growth orders. Mon, 11 Jul 2011 13:13:13 EDT http://www.sciencedaily.com/releases/2011/07/110711131324.htm http://www.sciencedaily.com/releases/2011/07/110711131314.htm There is no difference between brand-name and generic drug formulations of amiodarone -- taken to control arrhythmia -- in the incidence of thyroid dysfunction, according to a new study. Mon, 11 Jul 2011 13:13:13 EDT http://www.sciencedaily.com/releases/2011/07/110711131314.htm http://www.sciencedaily.com/releases/2011/07/110707102001.htm Cortisol is responsible for the recycling of bile acids from the blood, according to new research. If this recycling is disrupted, the animals develop gallstones and lose weight because they are no longer able to digest dietary fats. They also use more energy for heat production. The researchers assume that regulation of recycling serves the purpose of conserving energy efficiently in times of need. Thu, 07 Jul 2011 10:20:20 EDT http://www.sciencedaily.com/releases/2011/07/110707102001.htm http://www.sciencedaily.com/releases/2011/06/110622052255.htm A new signal pathway that renders the insulin-releasing beta cell more sensitive to high levels of blood glucose has been discovered by researchers in Sweden. A second new study reveals a possible way to delay the disease by inhibiting a lipoprotein. Wed, 22 Jun 2011 05:22:22 EDT http://www.sciencedaily.com/releases/2011/06/110622052255.htm http://www.sciencedaily.com/releases/2011/06/110614154544.htm Cancer is crafty. Researchers found that when a common type of prostate cancer was treated with conventional hormone ablation therapy blocking androgen production or androgen receptor (AR) function -- which drives growth of the tumor -- the cancer was able to adapt and compensate by activating a survival cell signaling pathway, effectively circumventing the roadblock put up by this treatment. Tue, 14 Jun 2011 15:45:45 EDT http://www.sciencedaily.com/releases/2011/06/110614154544.htm http://www.sciencedaily.com/releases/2011/06/110613094046.htm New clinical guidelines developed by an expert panel that include 100 evidence-based recommendations for optimal care of patients with hyperthyroidism and other causes of thyrotoxicosis are presented in the current issue of the journal Thyroid. Mon, 13 Jun 2011 09:40:40 EDT http://www.sciencedaily.com/releases/2011/06/110613094046.htm http://www.sciencedaily.com/releases/2011/06/110606131713.htm New research could be a sign of hope for patients with neuroendocrine cancer not responding well to standard therapies. Most radiotherapies use medical isotopes that emit beta radiation. The therapy in this study employs alpha particles, which have potential for higher potency. In fact, one single atom could be enough to kill an entire cancer cell. Mon, 06 Jun 2011 13:17:17 EDT http://www.sciencedaily.com/releases/2011/06/110606131713.htm http://www.sciencedaily.com/releases/2011/06/110606092520.htm A new targeted therapy for prostate cancer halts tumor growth in animals with advanced prostate cancer that is resistant to hormone therapy, a new study finds. Mon, 06 Jun 2011 09:25:25 EDT http://www.sciencedaily.com/releases/2011/06/110606092520.htm