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:3/24/2017)... Calif. (PRWEB) , ... March 24, 2017 , ... ... raised over $100,000 for its innovative EcoQube Frame vertical micro-veggies garden on ... instant demand for the product – with nearly 2,000 consumers (and counting) already ...
(Date:3/24/2017)... ... March 24, 2017 , ... Viewers who like to ... critical historical facts, cultural practices, goods, services, and societal issues tend to appreciate and ... into the popular practice of utilizing running events for causes around the world. ...
(Date:3/24/2017)... ... March 24, 2017 , ... “End Time GPS”: a ... will interrelate. “End Time GPS” is the creation of published author, Wesley Gerboth, ... working on military munitions and space-vehicle projects. Now, at age ninety-one, he shares the ...
(Date:3/23/2017)... ... 23, 2017 , ... A recent report from the National Council on Teacher ... NCTQ report suggests, based on a review of GPA and SAT/ACT requirements at 221 ... the U.S. It argues that this higher bar should be set by states, by ...
(Date:3/23/2017)... , ... March 23, 2017 , ... The IoT (Internet ... WiFi connectivity are making a huge impact on businesses and individual consumers alike. ... the IoT will have a value anywhere from $4 trillion to $11 trillion dollars ...
Breaking Medicine News(10 mins):
(Date:3/24/2017)... FinancialBuzz.com News Commentary   ... Medical cannabis products around the world are projected to gain popularity. A ... market will reach a value of USD 55.8 billion by 2025. ... growing industry. By the end of 2016, 28 states have now laws ... conservative states like Arkansas and North ...
(Date:3/24/2017)... -- Global Ampoules Market report provides a ... and industry chain structure. The Ampoules market analysis is ... landscape analysis, and major regions, development status. ... Complete ... 10 company profiles and 183 tables and figures is ...
(Date:3/24/2017)... , March 24, 2017  Eli Lilly and ... plans to invest $850 million in its U.S. ... across its U.S. enterprise, including research laboratories, manufacturing ... are being driven by demand for Lilly products, ... medicines in development targeting cancer, pain, diabetes and ...
Breaking Medicine Technology: