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A hormone is a chemical released by one or more cells that affects cells in other parts of the organism. Only a small amount of hormone is required to alter cell metabolism. It is essentially a chemical messenger that transports a signal from one cell to another.
Scientific review cautions against unnecessary use of antioxidant supplements

Scientific review cautions against unnecessary use of antioxidant supplements

The lay press and thousands of nutritional products warn of oxygen radicals or oxidative stress and suggest taking so-called antioxidants to prevent or cure disease. [More]
JAIDS presents important information to prevent HIV epidemic among transgender individuals

JAIDS presents important information to prevent HIV epidemic among transgender individuals

Programs to reduce the high risk of HIV infection among transgender people are urgently needed—but efforts are hindered by a lack of accurate information on HIV prevalence, HIV incidence, and specific risk factors facing this key population. [More]
Soy-ghretropin protein increases ghrelin levels and improves appetite

Soy-ghretropin protein increases ghrelin levels and improves appetite

Researchers have discovered a protein that stimulates secretion of ghrelin, an appetite-stimulating hormone produced in the stomach. [More]
Scientists identify marker that subdivides insulin-producing beta cells of the pancreas

Scientists identify marker that subdivides insulin-producing beta cells of the pancreas

The marker Flattop subdivides the insulin-producing beta cells of the pancreas into those that maintain glucose metabolism and into immature cells that divide more frequently and adapt to metabolic changes. [More]
Postmenopausal estrogen supplement may not affect memory of healthy women

Postmenopausal estrogen supplement may not affect memory of healthy women

Contrary to popular belief, taking estrogen after menopause may not affect the memory and thinking abilities of healthy women no matter when the treatment is started. [More]
Study finds low rates of baseline BMD testing among older women with breast cancer

Study finds low rates of baseline BMD testing among older women with breast cancer

Aromatase inhibitors (AIs)—drugs that stop the production of estrogen in women—are standard adjuvant therapy for post-menopausal women with hormone-receptor positive breast cancer. [More]
Study identifies specific characteristics that predispose women to different hot flashes, night sweat patterns

Study identifies specific characteristics that predispose women to different hot flashes, night sweat patterns

Most women will get hot flashes or night sweats at some point in life. However, when these symptoms occur and how long they last can vary dramatically among women. [More]
Researchers receive grant to test transcutaneously refillable implant that delivers HIV-prevention drugs

Researchers receive grant to test transcutaneously refillable implant that delivers HIV-prevention drugs

A Houston Methodist research team received a nearly $4 million grant to test a transcutaneously refillable implant that administers pre-exposure prophylaxis drugs to subjects at risk of HIV-exposure. [More]
Study reveals problems encountered when trying to avoid plastic exposure

Study reveals problems encountered when trying to avoid plastic exposure

The well-known documentary "Plastic Planet" by Werner Boote starkly illustrates the dangers of plastic and synthetics for human beings and also shows how ubiquitous plastic is. [More]
Study shows workplace conditions may contribute to gender-based job stress

Study shows workplace conditions may contribute to gender-based job stress

Social scientists have long known that women working in numerically male-dominated occupations like physics and firefighting report experiencing workplace stress, but men who work in numerically female-dominated occupations like nursing and child care do not. [More]
VMS during menopause transition linked to sociodemographic, psychosocial factors

VMS during menopause transition linked to sociodemographic, psychosocial factors

More data analysis about hot flashes from the Study of Women's Health Across the Nation has been published today in Menopause, the journal of The North American Menopause Society. [More]
17beta-Estradiol patch may help reduce Alzheimer's disease risk in newly postmenopausal women

17beta-Estradiol patch may help reduce Alzheimer's disease risk in newly postmenopausal women

Can estrogen preserve brain function and decrease the risk of Alzheimer's disease when given early in menopause? Newly postmenopausal women who received estrogen via a skin patch had reduced beta-amyloid deposits, the sticky plaques found in the brains of people with Alzheimer's disease, a Mayo Clinic study published this month in the Journal of Alzheimer's Disease found. [More]
Metabolic syndrome, cardiovascular events linked to decreased sexual activity in postmenopausal women

Metabolic syndrome, cardiovascular events linked to decreased sexual activity in postmenopausal women

Understanding the effects of age and disease on sexual wellbeing is crucial as sexual health is increasingly associated with vitality. In a new study published in The American Journal of Medicine, researchers looked at the role metabolic syndrome and cardiovascular disease play in postmenopausal women's sexual health. [More]
Study shows stress relief after eating highly palatable foods may vary between sexes

Study shows stress relief after eating highly palatable foods may vary between sexes

Researchers at the University of Cincinnati have found that the brain networks that mediate stress relief after eating highly palatable foods may vary between males and females, and may also depend on the stage of the estrous cycle. [More]
Lifting lighter weights many times can be effective alternative way to gain muscle strength

Lifting lighter weights many times can be effective alternative way to gain muscle strength

New research from McMaster University is challenging traditional workout wisdom, suggesting that lifting lighter weights many times is as efficient as lifting heavy weights for fewer repetitions. [More]

New ESE guidelines provide evidence-based recommendations for handling adrenal incidentalomas

The appropriate clinical response to adrenal incidentaloma should depend on the likelihood of malignancy, according to new guidelines published today by the European Society of Endocrinology, in collaboration with the European Network for the Study of Adrenal Tumours and first presented at ESE's annual European Congress of Endocrinology in May 2016. [More]
Research on Flattop protein could provide starting point for regenerative diabetes therapies

Research on Flattop protein could provide starting point for regenerative diabetes therapies

The marker Flattop subdivides the insulin-producing beta cells of the pancreas into those that maintain glucose metabolism and into immature cells that divide more frequently and adapt to metabolic changes. [More]
Obese individuals may be more sensitive to overeating when presented with food cues

Obese individuals may be more sensitive to overeating when presented with food cues

Obese mice are much more likely than lean mice to overeat in the presence of environmental cues, a behavior that could be related to changes in the brain, finds a new study by a Michigan State University neuroscientist. [More]
Hops extract activates chemical pathway in cells to help prevent breast cancer

Hops extract activates chemical pathway in cells to help prevent breast cancer

An enriched hops extract activates a chemical pathway in cells that could help prevent breast cancer, according to new laboratory findings from the UIC/NIH Center for Botanical Dietary Supplements Research at the University of Illinois at Chicago. [More]
I-SPY2 research initiative employs exciting new model for testing breast cancer drugs

I-SPY2 research initiative employs exciting new model for testing breast cancer drugs

In a new paradigm of breast cancer research, physicians are fast-tracking promising new experimental drugs for further study, while immediately dropping drugs and drug combinations that don't work. [More]
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