Featured Research

from universities, journals, and other organizations

Certain hormonal contraceptive may pose risk of Type 2 diabetes for obese women

Date:
February 7, 2013
Source:
University of Southern California - Health Sciences
Summary:
A first-of-its-kind study by researchers indicates that healthy, obese, reproductive-age women who use long-acting reversible contraception containing the hormone progestin have a slightly increased risk for developing Type 2 diabetes when compared to those who use non-hormonal contraception.

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.

Related Articles


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.


Story Source:

The above story is based on materials provided by University of Southern California - Health Sciences. Note: Materials may be edited for content and length.


Journal Reference:

  1. Nicole M. Bender, Penina Segall-Gutierrez, Sandy Oliver Lopez Najera, Frank Z. Stanczyk, Martin Montoro, Daniel R. Mishell. Effects of progestin-only long-acting contraception on metabolic markers in obese women. Contraception, 2013; DOI: 10.1016/j.contraception.2012.12.007

Cite This Page:

University of Southern California - Health Sciences. "Certain hormonal contraceptive may pose risk of Type 2 diabetes for obese women." ScienceDaily. ScienceDaily, 7 February 2013. <www.sciencedaily.com/releases/2013/02/130207172115.htm>.
University of Southern California - Health Sciences. (2013, February 7). Certain hormonal contraceptive may pose risk of Type 2 diabetes for obese women. ScienceDaily. Retrieved October 24, 2014 from www.sciencedaily.com/releases/2013/02/130207172115.htm
University of Southern California - Health Sciences. "Certain hormonal contraceptive may pose risk of Type 2 diabetes for obese women." ScienceDaily. www.sciencedaily.com/releases/2013/02/130207172115.htm (accessed October 24, 2014).

Share This



More Health & Medicine News

Friday, October 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Breakfast Debate: To Eat Or Not To Eat?

Breakfast Debate: To Eat Or Not To Eat?

Newsy (Oct. 23, 2014) Conflicting studies published in the same week re-ignited the debate over whether we should be eating breakfast. Video provided by Newsy
Powered by NewsLook.com
Ebola Fears Keep Guinea Hospitals Empty

Ebola Fears Keep Guinea Hospitals Empty

AP (Oct. 23, 2014) Fears of Ebola are keeping doctors and patients alike away from hospitals in the West African nation of Guinea. (Oct. 23) Video provided by AP
Powered by NewsLook.com
Despite Rising Death Toll, Many Survive Ebola

Despite Rising Death Toll, Many Survive Ebola

AP (Oct. 23, 2014) The family of a Dallas nurse infected with Ebola in the US says doctors can no longer detect the virus in her. Despite the mounting death toll in West Africa, there are survivors there too. (Oct. 23) Video provided by AP
Powered by NewsLook.com
Orthodontist Mom Jennifer Salzer on the Best Time for Braces

Orthodontist Mom Jennifer Salzer on the Best Time for Braces

Working Mother (Oct. 22, 2014) Is your child ready? Video provided by Working Mother
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins