Estrogen health benefits

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Estrogen adds one more reason for concern for women who took it during menopause, as new research shows that they have more than twice the risk of developing specific types of benign breast disease, or benign breast lumps.

According to Tom Rohan, MBBS, Ph.D., of Albert Einstein College of Medicine, who led the study, benign breast disease is believed to be an early stage in the development of breast cancer and may increase the risk of later carcinoma, but this might take "a decade or so."

This is the first study on the effect of conjugates equine estrogen (CEE), a type of hormone replacement therapy.

Dr. Rohan analyzed data coming form the Women's Health Initiative CEE trial, in which 10,739 postmenopausal women were randomly assigned to receive CEE or a placebo. The women were followed for almost seven years.

It is already known that a combined hormone therapy estrogen plus progestin increases the risk of breast cancer and other serious conditions, but women able to use estrogen alone (meaning they previously had hysterectomies) didn't show an increase in breast cancer risk.

The study identified 232 women who had biopsies for what turned out to be non-cancerous breast disease. These women had taken either estrogen alone or a placebo. There were 155 cases of non-cancerous proliferative breast disease in women who had taken estrogen and 77 in the placebo group, which means that women who were given estrogen-only therapy were more than twice likely to develop benign breast disease compared directly to women who were given a placebo.

"Each and every person who is a candidate for taking hormone therapy really needs to weigh the risks and benefits. You might say, this is one additional risk," Dr. Rohan told Reuters in a telephone interview.

The study, supported by the National Heart, Lung and Blood Institute and the National Cancer Institute, was published online April 8 in the Journal of the National Cancer Institute.

Estrogen problems

The lack of estrogen in postmenopausal women is linked to several health problems. For example, estrogen has positive effects on blood vessels and on bones. After menopause, though, women are at increased risk for heart disease and for osteoporosis, a weakening of the bones that causes them to become more vulnerable to fractures.

To counteract these potential problems, some postmenopausal women take hormone pills containing estrogen to strengthen bones and help control other menopausal symptoms. But, as a consequence, such women are subjecting themselves to the harmful effects of estrogen--namely, an increased risk for invasive breast cancer and uterine cancer

World problem

Cardiovascular disease kills over 110,000 people in England every year.

More than 25% of the world's adult population is hypertensive, and it has been estimated that this figure will increase to 30% by 2025.

Eating fruit and vegetables is known to be good for our cardiovascular health.

But researchers say green, leafy vegetables like lettuce and beetroot are best at reducing the risk of strokes and heart attacks because of their high inorganic content, which comes from nitrates in the soil.





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