Posted by on November 4, 2010 - 4:00pm

Menopause and the appropriate way to handle symptoms continues to be a lively topic of conversation.  Much of this discussion is based on findings from the landmark Women's Health Initiative Trial that was launched in 1991 and consisted of a set of clinical trials and an observational study, which together involved 161,808 generally healthy postmenopausal women.   The clinical trials were designed to test the effects of postmenopausal hormone therapy, diet modification, and calcium and vitamin D supplements on heart disease, fractures, and breast and colorectal cancer.   The initial studies were closed in 2002 when the risks of hormone replacement therapy appeared to outweigh the benefits, though this led to a round of controversy about the study design and the age of the study subjects that continues today.   As a result,  the data from this huge study  continues to be explored and new conclusions drawn.

Just this week, two blogs came across my desk that I thought were well written and worth sharing.   The first came from CNN (click HERE) and provides a comprehensive look at the background and questions that surround this issue.    The second  is a blog (click HERE) from the Loyola University Health System that addresses concerns that women just entering perimenopause have with some quick suggestions to ease the way.

Enjoy and let me know if you found them helpful!

Posted by on October 25, 2010 - 11:49am

Researchers at the University of Texas Southwestern Medical Center report that estrogen therapy after menopause increases a woman's chances of developing kidney stones.  Kidney stones are common among postmenopausal women, affecting between 5% and 7% of the population in the U.S.  Up until now, only observational studies have been done looking at kidney stones and estrogen, and the results have been conflicting.   This study shows new evidence based on a randomized, placebo-controlled trial.

Lead study author, Dr. Naim Maalouf and colleagues conducted trials at 40 U.S. clinical centers where a total 10,739 post-menopausal women with hysterectomies and 16,608 post-menopausal women without hysterectomies were randomized to receive either an estrogen supplement or a placebo. Among those receiving hormones, 335 cases of kidney stones were reported versus 284 cases in the placebo groups.  In general, kidney stones are less common among pre-menopausal women than among men in the same age group, but the disparity lessens after menopause, suggesting that estrogen may have a protective effect.

However, study lead author Maalouf points out the study challenges the belief estrogen may protect against kidney stones.   "This research suggests that the opposite might be true, and it offers new information that might be considered when prescribing estrogen-replacement therapies to post-menopausal women," Maalouf says in a statement.

The study did not detect any link between kidney stone risk and body mass index, age, prior hormone therapy, coffee usage, diuretic usage, or ethnicity.

The exact mechanisms for these findings are yet to be determined.

Source:   Archives of Internal Medicine, October 11, 2010.

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