Tag: "hormones" at medical news

Statin simvastatin linked to protection against endothelial dysfunction in diabetic rats

... of intact endothelial cells by neurotransmitters, hormones and other substances causes release of a substance that induces relaxation of the underlying vascular smooth muscle. Endothelial dysfunction is characterized by an imbalance between these vasodilators and vasoconstrictors and appears early in diabete...

Sex hormones hold key to higher rates of abdominal aortic aneurysms in males

... females, while giving females these same male sex hormones increases their risk to that of males. Tracy Henri...y laboratories revealed that removing the male sex hormones reduced the incidence of aneurysms in male mice to the same lower levels seen in the females. In thi...

Study reveals drinking alcohol reduces breast milk supply in women

...Philadelphia, Pennsylvania, examined levels of the hormones oxytocin, prolactin and cortisol, as well as the l...is no evidence to support this claim. In fact, the hormones underlying lactation and her milk production will be altered in the short term."...

Shape-altering genes linked to ovarian cancer

...se HOX genes are sensitive to levels of the female hormones estrogen and progesterone produced in the reproduc...peculates that abnormal changes in levels of these hormones could explain how the HOX genes come to be turned on in ovarian tissue. Indeed, most of the known ri...

Study finds possible mechanism for link between sleep disturbances and metabolic syndrome

...ogether, these alterations in neural andperipheral hormones suggest that a number of previously undetected braincircuits may exist that are common to sleep and eating. The mice with a mutation in the Clock gene fed a regular diet gained aboutas much weight as normal mice that were fed a high-fat diet. The mi...

ENDO 2005 press conferences

... endocrine disrupting chemicals (EDCs), that mimic hormones or block hormones effects at the Endocrine Disrupting Chemicals Press Conference scheduled for Saturday, June 4, 2005 ...

Risk of womb cancer varies according to the type of HRT used

...SA) state: "The important clinical question is how hormones can be prescribed in a fashion that will allow wom... doses. Although the benefits of short-term use of hormones during the early stages of menopause appear to outweigh the risks, we need other approaches for symp...

Patients with pituitary gland tumors are often misdiagnosed

...ons as "The Master Gland." It releases stimulating hormones that signal the thyroid gland, adrenal glands, ova...g them to produce their respective hormones. These hormones have dramatic effects on metabolism, blood pressure, sexuality, reproduction, and other vital body f...

HIV treatment not affected by hormonal birth control

Estrogen and progesterone hormones in birth control do not influence the effectiveness of highly active antiretroviral therapy (HAART), which is used to treat HIV infection, according to researchers from the Johns Hopkins Bloomberg School of Public Health and other institutions. The s...

Researchers consider possible mechanistic links between obesity and asthma

...y. There are also changes in the blood levels of hormones derived from fat tissue in the obese that may affect the airways. One of these hormones, leptin, is pro-inflammatory and obese individuals have higher leptin levels than lean individuals. Leptin is found at higher levels among asthmatics regardless...

Changes in brain receptors linked to seizures and anxiety during the menstrual cycle

...wings during pregnancy, and may explain how stress hormones affect the brain, said Dr. Istvan Mody, Coelho professor of neurology at the Reed Neurological Research Center at the David Geffen School of Medicine at UCLA. "This may provide novel therapeutic targets for curing PMDD (PMS) or catamenial epilepsy, a...

Moderate alcohol use linked to increase in breast cancer risk

...cer, particularly if their cancer is fueled by the hormones estrogen or progesterone, according to a data anal... in those whose tumor growth was stimulated by the hormones estrogen or progesterone. The results were consistent regardless of the women's body mass index, typ...

Failed lung cancer drug could help shrink breast tumors

... cancer were given pre-surgical treatment to block hormones only half were found to respond. For this reason many doctors use chemotherapy prior to surgery, which can have negative side effects and cause substantial mortality. A receptor called EGFR (epidermal growth factor receptor) is present on some hormon...

Too stressed to think?

...sychoneuroendocrinology, show increased stress hormones lead to memoryimpairment in the elderly and learning difficulties in young adults. "Stress has become more commonplace and accepted in our everyday lives,"says Sonia J. Lupien, PhD, lead author and director of the Laboratory ofStress Research ...

Female lung transplant recipients at greater risk of acute lung injury

...niversity of Pennsylvania. "It may involve women's hormones or differences in their immune systems." The study included data on all 7,482 adult lung transplants performed in the United States between 1994 and 2002. The researchers took into account factors such as the donor's age, race, cause of death, and th...

Northwestern Memorial participates in trial to test effectiveness of drug to treat endometriosis

...or endometriosis today are gonadotropin- releasing hormones (GnRH) analogs. This group of drugs decreases the production of estrogen to the levels a woman has after menopause, causing side effects such as bone loss, hot flashes, and mood swings." ERB-041 is an experimental medication that selectively works ...

Endocrine Society honors UNC physician for key contributions to hormone research

...st and largest organization devoted to research on hormones and clinical endocrinology. The society's membership consists of more than 12,000 scientists, physicians, educators, nurses and students in more than 80 countries....

News briefs from the journal CHEST June 2005

...bilitation experienced a worsening of bone-related hormones and turnover markers without recovering bone mass. The most significant improvements in BMD were in the 19 patients who underwent surgery and quit oral steroids. The 21 other patients who underwent surgery but continued taking oral steroids also expe...

American Thoracic Society Journal news tips for July 2005 (first issue)

...hat several studies have suggested that female sex hormones influence factors associated with asthma. For example, atopy as measured by skin-prick allergen tests changes during the menstrual cycle. When estrogen levels are high, wheal and flare responses increase. Also, the reaction of peripheral white blo...

Steiner symposium brings together leading diabetes experts

...onized how scientists understand the production of hormones such as insulin. In 1965, Steiner discovered that...as served as a model of how many other polypeptide hormones are cleaved to become active and to be properly secreted." The discovery of proinsulin also enabled...

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