Hormone News and Research

RSS

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.

The end of sex as we once knew it

Women are not from Venus any more than men are from Mars. But even though both sexes are perfectly terrestrial beings, they are not lacking in other differences. And not only in their reproductive organs and behavior, either, but in such unsexy characteristics as the propensity for drug abuse, fine motor control, reaction to stress, moods and many brain structures.

2 Feb 2009

Study identifies potential 'safe period' for hormone replacement use

A new study makes important new findings on the role of hormone use on the risk of breast cancer, confirming that the use of estrogen plus progesterone increases the risk of both ductal and lobular breast cancer far more than estrogen-only; suggesting a two-year 'safe' period for the use of estrogen and progesterone; and finding that the increased risk for ductal cancers observed in long-term past users of hormone replacement therapy drops off substantially two years after hormone use is stopped.

2 Feb 2009

Stress may speed growth of melanoma tumors

For patients with a particularly aggressive form of skin cancer - malignant melanoma - stress, including that which comes from simply hearing that diagnosis, might amplify the progression of their disease.

2 Feb 2009

Shift workers' body clocks studied to prevent certain cancers

Does shift work predispose you to cancer by altering the body's response to hormones?

2 Feb 2009

Pregnancy-related hormonal changes linked to increased risk of restless legs syndrome

A study in the Feb. 1 issue of the journal Sleep shows that the elevation in estradiol levels that occurs during pregnancy is more pronounced in pregnant women with restless legs syndrome (RLS) than in controls.

2 Feb 2009

Bioidentical hormone facts and perspectives

Public confusion of the benefits and risks of hormone therapy was highlighted once again this week on The Oprah Winfrey Show.

2 Feb 2009

Orexin - natural brain substance - blocks weight gain in mice

Mice with increased levels of a natural brain chemical don't gain weight when fed a high-fat diet, researchers at UT Southwestern Medical Center have found.

29 Jan 2009

Is rapid transition through menopause linked to earlier onset of heart disease?

An evaluation of 203 women as part of the multifaceted Los Angeles Atherosclerosis Study (LAAS) found that those who transitioned more quickly through menopause were at increased risk for a higher rate of progression of "preclinical atherosclerosis" - narrowing of arteries caused by the thickening of their walls.

29 Jan 2009

Reduce the calories and increase that brain power!

According to a study conducted by researchers in Germany older people benefit from a calorie restricted diet in more ways than one - they lose weight but also improve their memories.

28 Jan 2009

Masturbation as a young man linked to higher prostate cancer risk

Men who are very sexually active in their twenties and thirties are more likely to develop prostate cancer, especially if they masturbate frequently, according to a study of more than 800 men published in the January issue of BJU International.

27 Jan 2009

Imported diet pills from South America are dangerous

Americans who use illegal diet pills from South America are taking amphetamines without knowing it and seriously risking both their health and their jobs.

27 Jan 2009

Breastfed babies less likely to be neglected

An international team of specialists have carried out a study which has revealed that mothers who breastfeed are less likely to neglect their children.

27 Jan 2009

First genetic map of obesity

The first genetic map of obesity has been constructed using DNA microarray technology.

21 Jan 2009

Water pollution linked to male fertility problems

New research strengthens the link between water pollution and rising male fertility problems.

19 Jan 2009

Three new genetic variations that increase the risk of obesity

The gene variant most strongly associated with childhood obesity and adult morbid obesity in the study is located near the PTER gene, the function of which is not known. This variant is estimated to account for up to a third of all childhood obesity, and a fifth of all cases of adult obesity.

19 Jan 2009

New understanding on how aging causes broken bones to heal slowly

Researchers have unraveled crucial details of how aging causes broken bones to heal slowly, or not at all, according to study results published today in the Journal of Bone and Mineral Research.

19 Jan 2009

Exercise after menopause lowers breast cancer risk

Several studies had previously suggested that regular physical exercise reduces the breast cancer risk of women.

19 Jan 2009

Hormones make pretty women serial monogamists

American researchers say women with high levels of estrogen feel more attractive and are far more likely to indulge in affairs.

18 Jan 2009

Too much coffee can lead to hallucinations

According to a study by researchers at Durham University people with a higher caffeine intake, from coffee, tea and caffeinated energy drinks, are more likely to experience hallucinatory experiences such as hearing voices and seeing things that are not there.

18 Jan 2009

New model system may better explain regulation of body weight

A new mathematical model of the physiological regulation of body weight suggests a potential mechanism underlying the difficulty of losing weight, one that includes aspects of two competing hypotheses of weight regulation.

15 Jan 2009