Anti-Mullerian Hormone May Predict Rate of Bone Loss in Women

by Bidita Debnath on  April 2, 2016 at 11:37 PM Women Health News
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Doctors have devised a test which could help them predict which women going through menopause will lose bone faster than average. The results of the study will be presented at ENDO 2016, the annual meeting of the Endocrine Society, in Boston.
 Anti-Mullerian Hormone May Predict Rate of Bone Loss in Women
Anti-Mullerian Hormone May Predict Rate of Bone Loss in Women

"Measuring anti-Mullerian hormone, a marker of ovarian functioning, in the blood in women early in menopause transition (when they are still having menstrual bleeding, but a bit less regularly) can help women and their clinicians predict the rate of future bone loss during the transition and determine the likelihood of faster than average loss," said lead study author Arun S. Karlamangla, MD, PhD, professor of medicine at the David Geffen School of Medicine at UCLA in Los Angeles, California.

"Bone strength in older ages and the ability to avoid devastating hip and spine fractures depend equally on peak bone mass achieved in young adulthood and the amount of bone lost during and after the menopause transition," Karlamangla said. During the menopause transition, bone mass and bone strength decline rapidly, but the rate of bone loss varies considerably from woman to woman. "This study's findings open up the possibility of identifying the women who are going to lose the most bone mass during the transition and targeting them before they have lost a substantial amount of bone mass."

The authors analyzed data from 474 women participants in the multi-ethnic, multi-site Study of Women's Health Across the Nation (SWAN) conducted at seven academic medical centers in the United States. The participants were between 42 and 52 years of age, were pre- or early peri-menopausal, had an intact uterus with one or two ovaries, and were not taking exogenous sex steroid hormones.

Enrollment began in 1996 and the participants were asked to return every year to have their blood collected. Anti-Mullerian hormone levels in the blood were then measured. The women also had a bone mineral density scan two to four years before their final menstrual period and a second scan three to four years later, and changes in bone density were recorded.

Anti-Mullerian hormone levels strongly predicted the rate of bone loss during the menopause transition and may help identify which women can be expected to lose bone at a faster than average rate. The median rate of bone density decline was 1.3 percent per year in the spine and 1 percent per year in the femoral neck. Anti-Mullerian hormone levels ranged from the lower limit of detection (2 picograms per milliliter) to more than 1,000 picograms per milliliter.

Each four-fold decrease in hormone level was associated with a 0.15 percent per year faster decline in the bone density in the spine, a 0.13% per year faster decline in the femoral neck, as well as an 18 percent and a 17 percent increase in the odds of faster-than-median decline in the spine and femoral neck, respectively. The National Institutes of Health supported this study.

Endocrinologists are at the core of solving the most pressing health problems of our time, from diabetes and obesity to infertility, bone health, and hormone-related cancers. The Endocrine Society is the world''s oldest and largest organization of scientists devoted to hormone research and physicians who care for people with hormone-related conditions.

Source: Newswise

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