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.

TFAP2C gene may be useful target for new breast cancer therapies

University of Iowa researchers have discovered a gene that plays a linchpin role in the ability of breast cancer cells to respond to estrogen.

17 Sep 2007

Genetic variant explains why people react differently to smells

Why the same sweaty man smells pleasant to one person and repellant to another comes down to the smeller's genes.

17 Sep 2007

Byproduct of cholesterol metabolism blocks heart health benefits of estrogen

New findings by UT Southwestern Medical Center researchers show that a byproduct of cholesterol metabolism interferes with the beneficial effects estrogen has on the cardiovascular system, providing a better understanding of the interplay between cholesterol and estrogen in heart disease.

17 Sep 2007

Byproduct of cholesterol interferes with the beneficial effects of estrogen on the heart

A new study possibly offers a biological reason why hormone replacement therapy (HRT) fails to protect some postmenopausal women from heart disease.

17 Sep 2007

Breast cancer drug tamoxifen helps treat symptoms of bipolar disease

Government researchers in the United States have found that the breast cancer drug tamoxifen helped treat the manic symptoms of bipolar disease.

13 Sep 2007

Shrinkage of prostate led to overestimation of cancer risk in finasteride trial

Reanalysis of data from the first long-term randomized trial of a chemopreventive agent for prostate cancer shows that the excess prevalence of high-grade prostate cancer in the drug-treated group may be attributable to shrinkage of the prostate at the time of biopsy.

13 Sep 2007

Testosterone in the womb linked to autism

The researchers believe the results reinforce findings from tests on animals and also support the hypothesis that higher levels of testosterone may contribute to autism.

12 Sep 2007

New insight into breast cancer development in high-risk women

Physicians who treat women with the breast cancer susceptibility gene BRCA1 often remove their patients' ovaries to eliminate the source of estrogen they believe fuels cancer growth.

12 Sep 2007

Generic prostate drug finasteride helps find high-risk cancers early

Men now have another good reason to consider taking finasteride, a well-known generic drug that shrinks an enlarged prostate and reduces the risk of getting prostate cancer by 25 percent.

12 Sep 2007

St. Jude follows outcomes of stem cell transplant survivors

Patient care at St. Jude doesn't stop when the child is cured. The end of successful therapy is the start of many years of follow-up care. This care is aimed at helping make the recovery process successful and preparing the family and hometown doctor for long-term complications that might arise from the disease or its treatment.

11 Sep 2007

Significant association between alcohol and endometrial cancer in postmenopausal women

Postmenopausal women consuming two or more alcoholic beverages a day may double their risk of endometrial cancer, suggests a study led by researchers at the University of Southern California (USC). The study will appear in the International Journal of Cancer, and is now available online.

10 Sep 2007

Some with breast cancer stop taking aromatase inhibitors because of joint and muscle pain

More than 10 percent of women with breast cancer stopped taking a commonly prescribed drug because of joint and muscle pain, according to a new study from researchers at the University of Michigan Comprehensive Cancer Center.

10 Sep 2007

Researchers develop a long-acting growth hormone for use in human therapy

The new discovery could mean that children and adults with growth hormone disorders will not have to have injections as often, reducing the need for daily treatments.

5 Sep 2007

Lavender oil and tea tree oil may make boy's breasts bigger

A study published in this week's issue of the New England Journal of Medicine suggests that repeated topical use of products containing lavender oil and/or tea tree oil may cause prepubertal gynecomastia, a rare condition resulting in enlarged breast tissue in boys prior to puberty, and for which a cause is seldom identified.

5 Sep 2007

Halting rabies in the brain

While rabies, an ancient scourge that still kills 70,000 every year in developing countries worldwide can be combated with a series of vaccines today, it nearly is always fatal when it reaches the brain.

5 Sep 2007

Do not ignore fatigue

Jennifer Sieck knew something had to be done when she would lie in bed most of the day and night.

5 Sep 2007

Mice stressed in simulated weightlessness show organ atrophy

A ground-based, experimental model used to simulate astronaut weightlessness in space has provided Rutgers scientists an opportunity to study the effects of stress on immune organs.

4 Sep 2007

Adult offspring of parents with PTSD have lower cortisol levels

A small study suggests that adults whose parents are Holocaust survivors with post-traumatic stress disorder (PTSD) appear to have lower average levels of the stress hormone cortisol than the adult offspring of parents without PTSD, according to a report in the September issue of Archives of General Psychiatry, one of the JAMA/Archives journals.

4 Sep 2007

Fat: An active player in the regulation of many processes in health and disease

Why should we be interested in doing obesity-related research? Emphasis is put on this type of research simply because of the fact that the epidemiological data and predictions are alarming. Worldwide it is estimated that one person in every eight is overweight and more than 300 millions are obese

3 Sep 2007

Women warned about cosmetic vaginal surgery

The American College of Obstetricians and Gynecologists (ACOG) has warned women against cosmetic procedures advertised as "vaginal rejuvenation," "designer vaginoplasty", "revirgination" and "G-spot amplification".

3 Sep 2007