Featured Research

from universities, journals, and other organizations

Obesity Associated With Detrimental Changes In Ovary

Date:
March 11, 2009
Source:
The Endocrine Society
Summary:
Obese women have alterations in their ovaries which might be responsible for an egg's inability to make an embryo, according to a new study.

Obese women have alterations in their ovaries which might be responsible for an egg's inability to make an embryo, according to a new study accepted for publication in The Endocrine Society's Journal of Clinical Endocrinology & Metabolism (JCEM).

Obese women trying to become pregnant experience longer times to conception, even if they are young and have a regular menstrual cycle. This study sought to determine if there are alterations in an egg's environment in obese women which contribute to poorer reproductive outcomes.

"Characteristics of eggs are influenced by the environment in which they develop within the ovary," said Dr. Rebecca Robker, PhD, of Adelaide University in Australia and lead author of the study. "Our study found that obese women have abnormally high levels of fats and inflammation in the fluid surrounding their eggs which can impact an egg's developmental potential."

According to Dr. Robker, the fats might alter the very sensitive metabolism of the egg and such changes are known to be harmful to embryo formation. In addition, inflammation can damage cells and when this happens to eggs it can affect embryo survival.

For this study, researchers followed 96 women seeking assisted reproduction at a private clinic in South Australia from February 2006 to April 2007. Dr. Robker and her colleagues measured hormone and metabolite levels in follicular fluid obtained from the subjects' ovaries during their egg collection procedures. They found that obese women exhibited an altered ovarian follicular environment, particularly increased metabolite and androgen activity levels, which may be associated with poorer reproductive outcomes.

"Obesity is well known to cause changes in blood lipids and heightened inflammation which detrimentally affects a person's general health," said Dr. Robker. "Our research shows that obesity similarly changes the environment in the ovary which bathes and nourishes a woman's developing eggs."

Other researchers working on the study include Lisa Akison, Brenton Bennett, Penny Thrupp, Lindsay Chura, Darryl Russell, Michelle Lane and Robert Norman of the University of Adelaide in Australia.


Story Source:

The above story is based on materials provided by The Endocrine Society. Note: Materials may be edited for content and length.


Journal Reference:

  1. Robker et al. Obese Women Exhibit Differences in Ovarian Metabolites, Hormones, and Gene Expression Compared to Moderate Weight Women. Journal of Clinical Endocrinology & Metabolism, May 2009; DOI: 10.1210/jc.2008-2648

Cite This Page:

The Endocrine Society. "Obesity Associated With Detrimental Changes In Ovary." ScienceDaily. ScienceDaily, 11 March 2009. <www.sciencedaily.com/releases/2009/03/090303082817.htm>.
The Endocrine Society. (2009, March 11). Obesity Associated With Detrimental Changes In Ovary. ScienceDaily. Retrieved April 17, 2014 from www.sciencedaily.com/releases/2009/03/090303082817.htm
The Endocrine Society. "Obesity Associated With Detrimental Changes In Ovary." ScienceDaily. www.sciencedaily.com/releases/2009/03/090303082817.htm (accessed April 17, 2014).

Share This



More Health & Medicine News

Thursday, April 17, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Obama: 8 Million Healthcare Signups

Obama: 8 Million Healthcare Signups

AP (Apr. 17, 2014) President Barack Obama gave a briefing Thursday announcing 8 million people have signed up under the Affordable Care Act. He blasted continued Republican efforts to repeal the law. (April 17) Video provided by AP
Powered by NewsLook.com
Is Apathy A Sign Of A Shrinking Brain?

Is Apathy A Sign Of A Shrinking Brain?

Newsy (Apr. 17, 2014) A recent study links apathetic feelings to a smaller brain. Researchers say the results indicate a need for apathy screening for at-risk seniors. Video provided by Newsy
Powered by NewsLook.com
Could Even Casual Marijuana Use Alter Your Brain?

Could Even Casual Marijuana Use Alter Your Brain?

Newsy (Apr. 16, 2014) A new study conducted by researchers at Northwestern and Harvard suggests even casual marijuana use can alter your brain. Video provided by Newsy
Powered by NewsLook.com
Thousands Of Vials Of SARS Virus Go Missing

Thousands Of Vials Of SARS Virus Go Missing

Newsy (Apr. 16, 2014) A research institute in Paris somehow misplaced more than 2,000 vials of the deadly SARS virus. 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:
from the past week

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