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 who initiate hormone therapy closer to menopause tend to have a reduced risk of coronary heart disease

Studies examining the effects of the use of postmenopausal hormone therapy on coronary heart disease (CHD) have yielded mixed results, depending on the type of study conducted. There may be a number of reasons for the differences, including the timing of initiation of hormone therapy, according to background information in the article.

4 Apr 2007

Postmenopausal hormone therapy and risk of cardiovascular disease by age and years since menopause

Secondary analyses of findings from the Women's Health Initiative (WHI) suggest that women who begin hormone therapy within 10 years of menopause may have less risk of coronary heart disease (CHD) due to hormone therapy than women farther from menopause.

3 Apr 2007

Fungal compound galiellalactone may combat prostate cancer

Can a substance from a fungus that grows on decaying trees provide a cure for aggressive prostate cancer? This is the hope of researchers at Lund University in Sweden.

3 Apr 2007

Researchers spot molecular player in insulin resistance and type 2 diabetes

Scientists at Weill Cornell Medical College have identified a protein called Rab10 as an important partner in the insulin-mediated uptake of glucose by cells, opening the way to potential new drug targets for the prevention and treatment of type 2 diabetes.

3 Apr 2007

Dual renin system blocking drug combo provides additional blood pressure-lowering effects

A combination of two medicines that act against the effects of the enzyme renin are more effective in lowering blood pressure than either of the medicines alone, according to a study presented today at the American College of Cardiology's 56th Annual Scientific Session.

2 Apr 2007

Triple negative breast cancers more common among women who are African American and Hispanic, under 40 years old

So-called "triple negative" breast cancers, tumors that do not contain any of three significant tumor markers, are aggressive, deadly cancers that affect young, poor minority women, according to a new study.

2 Apr 2007

Maternal beef consumption associated with lower sperm concentration

New research has shown that women who ate a lot of beef while pregnant had sons who were more likely to suffer from poor sperm quality as adults, and it suggests that the growth promoters used in cattle may play a role in these men's reduced fertility.

2 Apr 2007

Ultrasound and blood tests screen high-risk pregnant mothers for placental damage

If the placenta is not functioning properly it could be a potential danger to the health of the mother and fetus. Abnormalities can lead to conditions such as preeclampsia, which is maternal high blood pressure, stillbirth or the need for a pre-term delivery.

2 Apr 2007

New insights into melatonin production

In the April 1 issue of G&D, a Korean research team led by Dr. Kyong-Tai Kim (Pohang University) describes how melatonin production is coordinated with the body's natural sleep/wake cycles.

2 Apr 2007

Total sleep time affects morning testosterone levels

The testosterone levels of healthy men decline as they get older. As sleep quality and quantity typically decrease with age, objectively measured differences in the amount of sleep a healthy older man gets can affect his level of testosterone in the morning, according to a study published in the April 1st issue of the journal SLEEP.

2 Apr 2007

Researchers identify gene for osteoporosis

Researchers report the identification of a gene that may play a role in susceptibility to osteoporosis, the crippling disease that leads to bone fractures, especially of the hip and spine.

31 Mar 2007

New cardiovascular treatment approaches

In an era of increasing death and illness from heart and blood vessel disease - which also can impair kidney function - Mayo Clinic researchers have designed two promising new cardiovascular treatment approaches.

30 Mar 2007

Lack of care for older breast cancer patients

Older women with breast cancer get a lower level of care than younger women, researchers at The University of Manchester have found.

From The University of Manchester 29 Mar 2007

Mother's high beef consumption while pregnant associated with lower sperm counts in her son

Researchers sought to examine the relationship between semen quality and long-term risks from growth hormones and other chemicals in beef.

28 Mar 2007

Circadian genes may be involved in bipolar disorder

Disrupt the gene that regulates the biological clocks in mice and they become manic, exhibiting behaviors similar to humans with bipolar disorder, UT Southwestern Medical Center researchers have found.

25 Mar 2007

Curry related compound shows promise against Kennedy's disease

Scientists who focus on the molecular signaling that underlies prostate cancer have discovered a compound that shows promise against a debilitating neurodegenerative condition known as Kennedy's disease, which is caused by a mutant gene.

21 Mar 2007

Blood pressure drug shows potential as lung cancer treatment

A hormone that is important in the control of blood pressure also shrinks lung cancer tumors in mice, suggesting a new way to prevent or treat the deadly cancer, according to scientists at Wake Forest University School of Medicine.

19 Mar 2007

Ultrasound could help couples undergoing IVF

Ultrasound-based tests allowing women undergoing in-vitro fertilization (IVF) to count their chickens before they've hatched may provide alternatives to the hormone-based tests used today.

15 Mar 2007

Obesity at the time of prostate-cancer diagnosis dramatically increases the risk of dying from the disease

Obese men who are diagnosed with prostate cancer have more than two-and-a-half times the risk of dying from the disease as compared to men of normal weight at the time of diagnosis, according to a study by researchers at Fred Hutchinson Cancer Research Center.

15 Mar 2007

Study aims to find which breast cancer patients need chemotherapy

Most postmenopausal women with small breast tumors don't need chemotherapy to reduce their recurrence risk after lumpectomy.

13 Mar 2007

Hormone News and Research

Further Reading

Women who initiate hormone therapy closer to menopause tend to have a reduced risk of coronary heart disease

Postmenopausal hormone therapy and risk of cardiovascular disease by age and years since menopause

Fungal compound galiellalactone may combat prostate cancer

Researchers spot molecular player in insulin resistance and type 2 diabetes

Dual renin system blocking drug combo provides additional blood pressure-lowering effects

Triple negative breast cancers more common among women who are African American and Hispanic, under 40 years old

Maternal beef consumption associated with lower sperm concentration

Ultrasound and blood tests screen high-risk pregnant mothers for placental damage

New insights into melatonin production

Total sleep time affects morning testosterone levels

Researchers identify gene for osteoporosis

New cardiovascular treatment approaches

Lack of care for older breast cancer patients

Mother's high beef consumption while pregnant associated with lower sperm counts in her son

Circadian genes may be involved in bipolar disorder

Curry related compound shows promise against Kennedy's disease

Blood pressure drug shows potential as lung cancer treatment

Ultrasound could help couples undergoing IVF

Obesity at the time of prostate-cancer diagnosis dramatically increases the risk of dying from the disease

Study aims to find which breast cancer patients need chemotherapy

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