Navigation Links
UTMB study identifies women at higher risk of significant bone loss on injectable birth control
Date:12/21/2009

GALVESTON, Texas Nearly half of women using depot medroxyprogesterone acetate (DMPA), commonly known as the birth control shot, will experience high bone mineral density (BMD) loss in the hip or lower spine within two years of beginning the contraceptive, according to researchers at the University of Texas Medical Branch at Galveston.

The study, reported in the January 2010 issue of Obstetrics and Gynecology, was the first to show that women on DMPA who smoke, have low levels of calcium intake and never gave birth are at the highest risk for BMD loss. The researchers also found that high risk women continued to experience significant losses in BMD during the third year of DMPA use, especially in the hip the most common facture site in elderly women.

DMPA is an injected contraceptive administered to patients every three months. According to the American College of Obstetricians and Gynecologists, more than two million American women use DMPA, including approximately 400,000 teens. DMPA is relatively inexpensive compared with some other forms of birth control, has a low failure rate and doesn't need to be administered daily, which contributes to the contraceptive's popularity.

"Bone mineral density loss is not a significant concern for all women who choose DMPA," says senior author Dr. Abbey Berenson, professor in the department of obstetrics and gynecology and director of the Center for Interdisciplinary Research in Women's Health at UTMB.

According to Berenson, over the last several years there's been a fair amount of confusion about how to counsel patients. "Based on these findings, clinicians have the information they need to recommend basic behavior changes for high risk women to minimize BMD loss," she said.

The study followed 95 DMPA users for two years. In that time, 45 women had at least five percent BMD loss in the lower back or hip. A total of 50 women had less than five percent bone loss at both sites during the same period.

By and large, BMD loss was higher in women who were current smokers, had never given birth and had a daily calcium intake of 600 mg or less far below the recommended amounts. Moreover, BMD loss substantially increased among the women with all three risk factors. Age, race or ethnicity, previous contraceptive use and body mass index were not associated with higher BMD loss.

The researchers followed 27 of the women for an additional year and found that those who experienced significant BMD loss in the first two years continued to lose bone mass.

"These losses, especially among women using DMPA for many years, are likely to take an extended period of time to reverse," says first author Dr. Mahburbur Rahman, assistant professor in the department of obstetrics and gynecology and Center for Interdisciplinary Research in Women's Health.

The researchers note that while this study will help physicians counsel women with modifiable risk factors who wish to use DMPA, prevention of bone loss while using the contraceptive and reversibility of BMD loss are still not well understood and further research is needed.


'/>"/>

Contact: Kristen Hensley
409-772-6397
University of Texas Medical Branch at Galveston
Source:Eurekalert

Related medicine news :

1. With Cardiac Rehab, More Is Better: Study
2. Study shows health care spending spurs economic growth
3. New study explores role of sexual, social behaviors in seniors well-being
4. Sex in university may be better for mature audiences: study
5. Cardiome Announces Investigational Candidate, Vernakalant, Meets Primary Endpoint in European Comparator Study
6. New Study Shows No Medicare Savings if Congress Moves Against Physician Owned Hospitals.
7. NIH awards La Jolla Institute $18.8 million for major infectious disease study
8. U-M Study Reveals Surprising Lack of Genetic Diversity in the Most Widely Used Human Embryonic Stem Cell Lines
9. New study links DHA type of omega-3 to better nervous-system function
10. New Study Reveals Pistachios Have Anti-Inflammatory Properties
11. Sleep Study Shows Pillo1 Re-Educates Body to Naturally Move Into Optimal Sleep Position and Increases REM Sleep by 21.3%
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/13/2017)... ... October 13, 2017 , ... The American Board of ... its next President and Chief Executive Officer, succeeding Dr. James C. Puffer upon his ... July 1, 2018 until Dr. Puffer’s retirement at the end of 2018. Upon assuming ...
(Date:10/13/2017)... ... 13, 2017 , ... Apple Rehab Shelton Lakes , which specializes in ... the facility as part of a disaster drill on October 3rd. , Apple Rehab ... City Emergency Manager, as well as the Connecticut Long Term Care Mutual Aid ...
(Date:10/13/2017)... , ... October 13, 2017 , ... Yisrayl Hawkins, Pastor ... that explains one of the most popular and least understood books in the Holy ... and puzzling descriptions that have baffled scholars for centuries. Many have tossed it off ...
(Date:10/12/2017)... ... October 12, 2017 , ... First ... compliance program management, will showcase a range of technology and learning solutions at ... (NCAL) Convention and Expo to be held October 14–18, 2017 at the Mandalay ...
(Date:10/12/2017)... Bethesda, MD (PRWEB) , ... October 12, 2017 , ... ... Award of Excellence to Carol Friedman, PhD, FACMI, during the Opening Session of AMIA’s ... 4 – 8. , In honor of Morris F. Collen, a pioneer in the ...
Breaking Medicine News(10 mins):
(Date:9/18/2017)... KALAMAZOO, Mich. , Sept. 18, 2017 /PRNewswire/ ... and OptiMed Specialty Pharmacy of Kalamazoo, Mich. ... a strategic hub service that expedites and streamlines patient ... spirometer, Spiro PD 2.0, and wellness management services.  ... a medical device used to measure lung function for ...
(Date:9/13/2017)... has been named the official orthopedic and sports medicine ... 2018 College Football Playoff (CFP) National Championship to be played ... Atlanta, Georgia . OrthoAtlanta is proud to be ... many activities leading up to, and including the national championship ... OrthoAtlanta serves ...
(Date:9/12/2017)...  Consumer reviews on the independent review site Consumer Affairs ... company for hearing aids, ranking it higher than Miracle Ear ... ... For Hearing Aids ... online store that provides high performance, state-of-the-art, German-engineered hearing aids directly ...
Breaking Medicine Technology: