Hormone News and Research

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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.

Statins do not protect against prostate cancer

A large community-based study refutes previous findings that statins , a top-selling drug class, worldwide -- might cut one's risk of developing prostate cancer by reducing production of the male hormones that fuel cancer growth.

11 Aug 2007

Testosterone replacement therapy for men

For decades, older women have taken hormone replacements to replenish estrogen and progesterone levels lost to aging.

9 Aug 2007

Estrogen deficiency may trigger the development of high blood pressure and obesity in aged females

At menopause, women lose hormone protection against heart (cardiovascular) and kidney (renal) diseases, and are likely to become obese. A research team has tested the idea that estrogen deficiency in aged females may trigger the development of high blood pressure and obesity.

9 Aug 2007

Link between stress and periodontal diseases

A literature review published in the August issue of the Journal of Periodontology (JOP) saw a strong relationship between stress and periodontal diseases; 57% of the studies included in the review showed a positive relationship between periodontal diseases and psychological factors such as stress, distress, anxiety, depression, and loneliness.

9 Aug 2007

New approach to assessing clot risk in menopausal women

In women, hormone therapy is a risk factor for venous thrombosis, a blood clot forming deep inside the vein.

9 Aug 2007

Thyroid hormones may play important role in sleep regulation

While the thyroid has long been linked to metabolism, cutting-edge research underway at Rutgers University Camden is investigating the possibility that thyroid hormones have an important role in sleep regulation.

9 Aug 2007

Obesity linked to hyperparathyroidism in chronic kidney disease

For patients with chronic kidney disease (CKD), the risk of elevated levels of parathyroid hormone (PTH), or hyperparathyroidism a significant complication that increases the risk of cardiovascular problems and death increases along with body weight, reports a study in the September Clinical Journal of the American Society of Nephrology.

9 Aug 2007

Sex and gender in cardiovascular-renal physiology and pathophysiology

Gender influences the prevalence and progression rate of many renal diseases, such as polycystic kidney disease (PKD).

9 Aug 2007

Voluntary exercise induces sex-specific physiological cardiac remodeling

While cardiovascular disease occurs in both men and women, it does not affect them in the same way.

9 Aug 2007

Lack of sleep leads to increased urinary output and more salt in urine

Our body's production of urine follows a circadian rhythm. During the day, we experience greater urinary frequency; at night, urine production declines, enabling us to get uninterrupted sleep.

9 Aug 2007

Steep rises in cancers linked to excessive sun exposure, alcohol, smoking and obesity

Rates of melanoma, the most dangerous form of skin cancer, have risen by over 40 per cent in the past decade, making it the fastest rising cancer in the UK. Incidence of mouth, womb, and kidney cancers has also shown rapid increases in the last 10 years.

8 Aug 2007

Scientists tackle gene doping in athletes

Gene doping has the potential to spawn athletes capable of out-running, out-jumping and out-cycling the strongest of champions.

7 Aug 2007

18 to 25 percent of women suffer from migraines

For every man with a migraine, three women are struck by the severe headaches that often come with nausea, sensitivity to light and sound, and aura.

6 Aug 2007

How the brain produces fever responses during infections

With the finding that fever is produced by the action of a hormone on a specific site in the brain, scientists have answered a key question as to how this adaptive function helps to protect the body during bacterial infection and other types of illness.

6 Aug 2007

Improved guidelines for providing intrauterine devices

Virginia Commonwealth University researchers have found that intrauterine devices are safe and effective in a population of women previously not considered as good candidates for this method of birth control.

6 Aug 2007

Scientists make female mice act blokey!

By short-circuiting the sensory organ that detects the chemical cues mice use to attract mates, a team of Howard Hughes Medical Institute (HHMI) researchers has prompted female mice to behave like male mice in the throes of courtship.

6 Aug 2007

Vomeronasal organ differentiates male and female behavior in some mammals

For years, scientists have searched in vain for slivers of the brain that might drive the dramatic differences between male and female behavior.

6 Aug 2007

Age is important in HRT use

Five years ago this summer the National Institutes of Health's stopped early a major portion of the Women's Health Initiative (WHI), a large and ambitious study to address the most common causes of death, disability and impaired quality of life in postmenopausal women.

3 Aug 2007

First case of successful ovarian tissue transplantation between two, nonidentical sisters

A woman, whose ovaries had failed due to damage caused by chemotherapy and radiotherapy, has received a successful ovarian transplant from her genetically non-identical sister.

3 Aug 2007

Rotating shift workers have lower levels of serotonin

People who work rotating shifts have significantly lower levels of serotonin, a hormone and neurotransmitter in the central nervous system believed to play an important role in the regulation of sleep, according to a study published in the August 1st issue of the journal SLEEP.

3 Aug 2007