Navigation Links
USC research finds certain contraceptive may pose risk of Type 2 diabetes for obese women

Highlights of this news release:

  • Six-month study finds that progestin-releasing contraceptives show a slight negative impact on metabolic markers, raising the risk for type 2 diabetes.

  • Contraceptive implants under the skin increase the risk more than uterine implants.

  • Longer and larger studies are needed to see if metabolic changes are temporary or long-term.

LOS ANGELES A first-of-its-kind study by researchers at the Keck School of Medicine of the University of Southern California (USC) indicates that healthy, obese, reproductive-age women who use long-acting reversible contraception (LARC) containing the hormone progestin have a slightly increased risk for developing type 2 diabetes when compared to those who use non-hormonal contraception.

The research concludes that progestin-releasing LARC appears to be safe for use by such women but needs further investigation.

Nicole M. Bender, assistant professor of clinical obstetrics and gynecology at the Keck School, was the principal investigator for the study "Effects of progestin-only long-acting contraception on metabolic markers in obese women," which appeared online in the journal Contraception on Jan. 2, 2013.

"Contraceptive studies often only look at normal-weight women," said Penina Segall-Gutierrez, co-investigator of the study and an assistant professor of clinical obstetrics and gynecology and family medicine at the Keck School. "Studies such as this are necessary because, today, one-third of women in the U.S. are overweight and one-third are obese. All women, including overweight and obese women, need to have access to safe and effective contraception."

Obese women are at increased risk for pregnancy-related complications and are sometimes warned by their doctors not to use contraceptives containing estrogen, such as the pill, patch and vaginal ring.

"[Those choices] raise the risk for blood clots," Segall-Gutierrez said. "So they need other, viable alternatives. The implanted LARC devices last three to 10 years, are easily reversible, and women don't have to remember to do anything with them, in contrast to the birth-control pill."

The six-month study observed the metabolic markers in three groups of obese women: a control group using non-hormonal birth control methods, including condoms, the copper IUD, and female or male sterilization; a second group with a progestin-releasing LARC device implanted in the uterus (IUD); and a third group with a progestin-releasing LARC device implanted under the skin.

"All three methods were found to be safe and effective, and they did not create changes in blood pressure, weight, or cholesterol," Segall-Gutierrez said. "However, there was a 10 percent increase in fasting blood-glucose levels among the skin implant users, compared to a 5 percent increase among the IUD users and a 2 percent decrease among those using non-hormonal methods. The effects on sensitivity to insulin showed a similar trend. It is unknown if these effects would continue if the devices were used and studied for a longer period of time."

Segall-Gutierrez and her Keck research partners have studied the metabolic effects of other birth-control methods as well. In 2012, they reported findings that obese women receiving a progestin birth-control shot every three months may be at increased risk for developing type 2 diabetes.

"Overall, we're finding that methods such as the progestin injection and the progestin skin implant, which both have higher circulating progestin, may have an increased risk for metabolic changes compared to methods like the IUD, which only has a local effect ─ in the uterus," she said.

Segall-Gutierrez added that the progestin-releasing IUD has other benefits. It is approved by the U.S. Food and Drug Administration for treatment of heavy menstrual bleeding, which often affects obese women. The IUD also protects against endometrial cancer, which disproportionately affects obese women.

"Choosing a birth-control method requires consideration of many factors, including the patient's lifestyle and willingness to use the method, desire for future fertility, and risk for a host of diseases ─ diabetes and endometrial cancer being two of them for obese women," she said. "We would like to expand our most recent study by looking at more participants over a longer period of time to see if the metabolic effects we observed in the progestin-releasing implants persist or are only temporary."

In addition to Bender and Segall-Gutierrez, the research team includes Sandy Oliver Lopez Najera, Frank Z. Stanczyk, Martin Montoro and Daniel R. Mishell.


Contact: Leslie Ridgeway
University of Southern California - Health Sciences

Related medicine news :

1. UCLA Brain Injury Research Center gets NCAA funding for research on sports concussions
2. NIH awards $20 million over 5 years to train next generation of global health researchers
3. Researchers develop a new cell and animal model of inflammatory breast cancer
4. Researchers uncover a viable way for colorectal cancer patients to overcome drug resistance
5. Sexually abused boys at risk for more unsafe sex: UBC research
6. Researchers Find Gene Mutations That May Be a Key to Autism
7. LSUHSC research finds HPV-related head & neck cancers rising, highest in middle-aged white men
8. Researchers find evidence of banned antibiotics in poultry products
9. Presidential keynote address and new research highlights from the American Society of Pediatric Otolaryngology meeting
10. Scientific session and new research highlights
11. NJ stroke researchers report advances in spatial neglect research at AAN Conference
Post Your Comments:
(Date:11/29/2015)... ... 30, 2015 , ... The Cyber Monday deal is a deep 40% or more discount on ... get gifts for the skin care lover in your circle. Each Christmas, Sublime Beauty ... year, the 3 serums are staples: Collagen, Retinol and Hyaluronic Serums. , Stocking stuffers like ...
(Date:11/29/2015)... (PRWEB) , ... November 29, 2015 , ... While conventional ... kneeling or provide ready access to exercise weights. Fortunately, an inventor from Uniontown, Pa., ... THE TOMMY WALKER to enhance the benefits of a standard walker to improve the ...
(Date:11/29/2015)... ... November 29, 2015 , ... Effective immediately, every single IguanaMed scrub style ... Black Friday Target is offering a “Buy One Scrub Set, Get the 2nd Scrub ... to purchase IguanaMed at a discounted price. , IguanaMed’s mission is to ...
(Date:11/28/2015)... , ... November 28, 2015 , ... Safe storage for ... of two inventors, one from Lakewood, New Jersey and the other from Bradley Beach, ... patent-pending PROTECTOR to save the expense of having to replace NuvaRings more often than ...
(Date:11/28/2015)... ... , ... Pixel Film Studios is back again with ProPanel: Pulse . ... endless. Users have full control over angle of view, speed method, start point, end ... to get heads to turn. , ProPanel: Pulse offers fully customizable pulsating shape masks, ...
Breaking Medicine News(10 mins):
(Date:11/26/2015)... Research and Markets ( ) has announced ... Outlook to 2019 - Rise in Cardiac Disorders and Growing ... to their offering. Boston ... scientific and others. --> The market ... Boston scientific and others. ...
(Date:11/26/2015)... , November 26, 2015 ... the addition of the  "2016 Future ... Global Cell Surface Testing Market: Supplier ... to their offering.  --> ... of the  "2016 Future Horizons and ...
(Date:11/26/2015)... , November 26, 2015 ... the addition of the  "2016 Future ... European Therapeutic Drug Monitoring (TDM) Market: ... Intelligence, Emerging Opportunities"  report to their ... has announced the addition of the  ...
Breaking Medicine Technology: