Featured Research

from universities, journals, and other organizations

Significant weight gain in postmenopausal women increases risk for endometrial cancer, research suggests

Date:
October 24, 2011
Source:
American Association for Cancer Research
Summary:
Postmenopausal women who gained weight during adulthood had an increased risk for endometrial cancer compared with women who maintained a stable weight, according to new research.

Postmenopausal women who gained weight during adulthood had an increased risk for endometrial cancer compared with women who maintained a stable weight, according to data from the American Cancer Society's Cancer Prevention Study II Nutrition Cohort.

Victoria L. Stevens, Ph.D., strategic director of laboratory services at the National Home Office of the American Cancer Society in Atlanta, presented the data at the 10th AACR International Conference on Frontiers in Cancer Prevention Research, held Oct. 22-25, 2011.

Stevens and colleagues investigated whether adulthood weight gain and/or weight cycling, defined as the number of times a woman purposefully lost 10 pounds or more and then later regained the weight, increased the risk for endometrial cancer in postmenopausal women, independent of body mass index (BMI). Weight cycling, commonly referred to as "yo-yo" dieting, had previously been suggested to increase the amount of fat mass relative to lean body mass, according to Stevens.

"Fat tissue is the major source of circulating estrogen in postmenopausal women, and estrogen promotes the development of endometrial cancer," Stevens said. "Therefore, we hypothesized that weight cycling could be associated with risk for this cancer because women who engage in this behavior may have a higher proportion of fat than noncyclers."

The researchers collected data from 38,152 women with an intact uterus and who provided information on weight history and weight cycling on a 1992 questionnaire. Between 1992 and 2007, 560 women reported a diagnosis of endometrial cancer.

Overall, the results indicated that there was an almost fourfold increased risk for endometrial cancer in women who had gained 61 pounds or more in that timeframe, compared with women who maintained a stable weight. After adjustment for baseline BMI, the researchers found a twofold increased risk for endometrial cancer.

In addition, after adjustment, the researchers found no association between weight cycling, or yo-yo dieting, and endometrial cancer risk. "Weight gain during adulthood may increase risk for endometrial cancer in postmenopausal women, but weight cycling, which results from unsuccessful attempts to lose weight, does not increase risk for this cancer," Stevens said.

Future research should address whether the timing of weight gain and weight cycling during specific parts of adulthood, such as early adulthood versus middle age, influences the risk for endometrial cancer and whether weight loss decreases this risk, Stevens said.

"Weight gain during adulthood should be avoided to minimize risk for endometrial cancer," she said. "Women who have gained weight and are overweight or obese should continue to attempt to lose weight even though most weight loss will not be maintained."


Story Source:

The above story is based on materials provided by American Association for Cancer Research. Note: Materials may be edited for content and length.


Cite This Page:

American Association for Cancer Research. "Significant weight gain in postmenopausal women increases risk for endometrial cancer, research suggests." ScienceDaily. ScienceDaily, 24 October 2011. <www.sciencedaily.com/releases/2011/10/111024084707.htm>.
American Association for Cancer Research. (2011, October 24). Significant weight gain in postmenopausal women increases risk for endometrial cancer, research suggests. ScienceDaily. Retrieved September 23, 2014 from www.sciencedaily.com/releases/2011/10/111024084707.htm
American Association for Cancer Research. "Significant weight gain in postmenopausal women increases risk for endometrial cancer, research suggests." ScienceDaily. www.sciencedaily.com/releases/2011/10/111024084707.htm (accessed September 23, 2014).

Share This



More Health & Medicine News

Tuesday, September 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Ebola Costs Keep Mounting

Ebola Costs Keep Mounting

Reuters - Business Video Online (Sep. 23, 2014) The WHO has warned up to 20,000 people could be infected with Ebola over the next few weeks. As Sonia Legg reports, the implications for the West African countries suffering from the disease are huge. Video provided by Reuters
Powered by NewsLook.com
Liberia Pleads for Help to Fight Ebola

Liberia Pleads for Help to Fight Ebola

AP (Sep. 22, 2014) Liberia's finance minister is urging the international community to quickly follow through on pledges of cash to battle Ebola. Bodies are piling up in the capital Monrovia as the nation awaits more help. (Sept. 22) Video provided by AP
Powered by NewsLook.com
Ebola Doctor Says Border Controls Critical

Ebola Doctor Says Border Controls Critical

AP (Sep. 22, 2014) A Florida doctor who helped fight the expanding Ebola outbreak in West Africa says the disease can be stopped, but only if nations quickly step up their response and make border control a priority. (Sept. 22) Video provided by AP
Powered by NewsLook.com
Global Ebola Aid Increasing But Critics Say It's Late

Global Ebola Aid Increasing But Critics Say It's Late

Newsy (Sep. 21, 2014) More than 100 tons of medical supplies were sent to West Africa on Saturday, but aid workers say the global response is still sluggish. Video provided by Newsy
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