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.

Women warned about contraceptive patch

The makers of a revolutionary contraceptive patch are warning women that they are at a greater risk of blood clots and other serious side-effects because of the higher doses of hormones the patch delivers.

15 Nov 2005

Gene therapy and exercise may help sufferers of Lou Gehrig's disease

A new study in mice gives hope that a combination of gene therapy and exercise may extend the lives of people who have Lou Gehrig's disease.

15 Nov 2005

Olfactory epithelium plays a critical role in pheromone detection

Howard Hughes Medical Institute researchers have discovered that pheromones essential for mating behavior in mice are recognized by the nose and not by the vomeronasal system, as researchers had long suspected.

14 Nov 2005

Bright light therapy may aid patients with depressive and bipolar disorders

A report in the November Cell Metabolism reveals powerful effects of light on the adrenal glands, a finding that might explain the broad benefits of bright light therapy for a variety of conditions, including sleep and depressive disorders, according to researchers.

14 Nov 2005

The relationships between body image and sexual response changes in midlife women

Penn State researchers, who analyzed the responses of midlife women, ages 35 to 55, to a survey on body image, have concluded that the emphasis in U.S. culture on being young and thin has a more important influence than menopause on sexual functioning and satisfaction.

14 Nov 2005

Molecular origins of diabetes

An unexpected twist to a discovery reported just two months ago may significantly improve our understanding about the molecular origins of diabetes.

14 Nov 2005

First step in exploring the GnRH reproduction-related circuitry in the brain

Howard Hughes Medical Institute researchers have discovered a vast network of neurons in the brain of mice that governs reproduction and controls the effects of reproductive status on other brain functions.

14 Nov 2005

How protein-enriched meals decrease hunger and reduce eating

Researchers have uncovered new evidence to explain the observation that diets rich in protein stunt the appetite, according to a report in the November Cell Metabolism.

13 Nov 2005

Cancer survivors require tailored follow-up plans

Citing shortfalls in the care currently provided to the country's 10 million cancer survivors, a new report recommends that each cancer patient receive a "survivorship care plan."

13 Nov 2005

Warnings about blood clots with contraceptive patch

According to U.S. regulators, Johnson & Johnson's Ortho Evra contraceptive patch contains higher levels of a hormone known to cause blood clots than average birth control pills.

13 Nov 2005

Newly discovered hormone obestatin could help fight obesity

They hope that the hormone, obestatin, which belongs to the same family ghrelin, which stimulates the appetite, may be a key to the fight against obesity.

13 Nov 2005

New screening test can predict Down syndrome in first trimester

According to new research, an early blood test has proven to be an accurate predictor for Down syndrome.

13 Nov 2005

Anabolic steroids help people with HIV put on weight and muscle mass

People with HIV who are treated with anabolic steroids to prevent AIDS wasting may realize modest gains in weight and muscle mass, a new review shows.

10 Nov 2005

Vitamin D sufficiency may be more important than high calcium intake for maintaining calcium metabolism

Calcium intake levels of more than 800 mg/day may be unnecessary for maintaining calcium metabolism if vitamin D status is adequate, according to a study in the November 9 issue of JAMA: The Journal of the American Medical Association.

10 Nov 2005

With adequate vitamin D extra calcium unnecessary

New research says that in order to maintain calcium metabolism, taking as much as 800 milligrams of calcium daily is probably unnecessary provided that vitamin D levels are normal.

9 Nov 2005

Oestrogen helps women concentrate

Scientists at the University of Bradford have discovered that the hormone oestrogen could be responsible for giving women the advantage when performing certain tasks such as driving.

7 Nov 2005

What girls always knew - women are safer drivers!

According to British scientists studying brain differences between the sexes, female sex hormones may be responsible for making women better "multi-taskers" and safer drivers than men.

7 Nov 2005

Hormonal clue to higher asthma rates in women

According to experts hormone fluctuations resulting from life cycle changes are a factor in higher rates of asthma, more frequent emergency department visits, and higher hospital admission rates in women than in men.

7 Nov 2005

Anti-aging hormone called Klotho actions explained

Scientists recently discovered an anti-aging hormone called Klotho. Now, a new study shows that this protein acts by increasing the cell's ability to detoxify harmful reactive oxygen species.

7 Nov 2005

New discovery helps explain complex neurocircuitry behind body weight control

A study led by a scientific team at Beth Israel Deaconess Medical Center (BIDMC) provides another important step in our understanding of the critical role that the brain's molecular pathways play in the development of obesity and related disorders.

7 Nov 2005