Hormones News and Research

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Sildenafil increases release of key reproductive hormone oxytocin

Researchers at the University of Wisconsin-Madison report this month that sildenafil increases the amount of oxytocin released by stimulation of the posterior pituitary gland, a small structure directly underneath the brain that regulates hormone levels in response to neural signals.

24 Aug 2007

Fat mice gain protection against diabetes

The world's fattest mice can overeat without developing insulin resistance or diabetes thanks to a glut of a key hormone, a dichotomy that helps explain why not all obese people are diabetic, a UT Southwestern Medical Center researcher has found.

24 Aug 2007

Nicotinic receptors may be important targets for treatment of multiple addictions

For years, scientists have known that some people are biologically more susceptible to drug addiction than others, but they have only been able to speculate why.

17 Aug 2007

Low levels of key protein may indicate pancreatic cancer risk

A protein that dwindles in response to obesity and a sedentary lifestyle may one day help doctors predict which people are at increased risk for pancreatic cancer, new research by Dana-Farber Cancer Institute and collaborating scientists indicates.

17 Aug 2007

Eating junk food during pregnancy and breastfeeding gives offspring taste for junk food

Mothers who eat junk food during pregnancy and breastfeeding may be putting their children at risk of overeating and developing obesity, according to a study funded by the Wellcome Trust and carried out at the Royal Veterinary College, London.

16 Aug 2007

Leptin controls our fondness for food

Scientists have discovered that leptin, one of the key hormones responsible for reducing hunger and increasing the feeling of fullness, also controls our fondness for food.

12 Aug 2007

Sex hormones play a significant role in the development of diabetic kidney disease

Women have a "female advantage" when it comes to chronic kidney disease. When compared to men, they have fewer and less severe episodes of this disorder throughout most of their lives.

11 Aug 2007

Sex steroids, platelet aggregation and inflammation

In women, hormone therapy is a risk factor for venous thrombosis, a blood clot forming deep inside the vein. Despite the fact that the disorder is rare, it increases exponentially during menopause and can be deadly.

11 Aug 2007

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

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

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

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

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