Featured Research

from universities, journals, and other organizations

Why fat thighs are not as bad as a fat abdomen

Date:
October 5, 2010
Source:
Mayo Clinic
Summary:
Using ice cream, candy bars and energy drinks to help volunteers gain weight, researchers have discovered the mechanisms of how body fat grows.

Using ice cream, candy bars and energy drinks to help volunteers gain weight, Mayo Clinic researchers have discovered the mechanisms of how body fat grows. Increased abdominal fat seems to heighten risk for metabolic disease, while fat expansion in the lower body -- as in the thighs -- seems to lower the risk. The findings, appearing in the October 4 edition of theProceedings of the National Academy of Sciences (PNAS), help explain why.

Related Articles


"The cellular mechanisms are different," explains Michael Jensen, M.D., Mayo Clinic endocrinologist and lead author of the study. "The accumulation of abdominal fat happens largely by individual cells expanding in size, while with fat gain in the femoral or lower body, it's the number of fat cells that increases. So, different mechanism, different impact."

Researchers recruited 28 volunteers to the research study. They were overfed for eight weeks, consuming giant candy bars, ice cream shakes, high-calorie drinks and almost anything else they wanted to eat. On average, participants put on 2.5 kilograms (kg) or 5.5 pounds (lbs) of upper body fat and 1.5 kg or 3.3 lbs of lower body fat. Even prior to fat gain, the preadipocytes (cells with the ability to become mature fat cells) in the upper body showed an increase in RNA messages which prompt proteins to synthesize fat.

Fifteen men and 13 women participated in the study. Researchers measured body fat and fat cell size before and after the eight weeks of overeating. Researchers say their findings challenge the concept that the number of fat cells in the body remains stable in adults. It also supports the idea that increased capacity to produce lower-body fat cells creates some form of protection to the upper body and potentially helps prevent metabolic disease which can lead to diabetes and other complications.

Others on the study include first author Yourka Tchoukalova, Ph.D.; Susanne Votruba, Ph.D.; Tamar Tchkonia, Ph.D.; Nino Giorgadze; and James Kirkland, M.D., Ph.D.; of Mayo Clinic. The research was funded by the National Institutes of Health, the U.S. Public Health Service, The Noaber Foundation and Mayo Clinic, including the Robert and Arlene Kogod Center on Aging.


Story Source:

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


Cite This Page:

Mayo Clinic. "Why fat thighs are not as bad as a fat abdomen." ScienceDaily. ScienceDaily, 5 October 2010. <www.sciencedaily.com/releases/2010/10/101004151654.htm>.
Mayo Clinic. (2010, October 5). Why fat thighs are not as bad as a fat abdomen. ScienceDaily. Retrieved February 1, 2015 from www.sciencedaily.com/releases/2010/10/101004151654.htm
Mayo Clinic. "Why fat thighs are not as bad as a fat abdomen." ScienceDaily. www.sciencedaily.com/releases/2010/10/101004151654.htm (accessed February 1, 2015).

Share This


More From ScienceDaily



More Health & Medicine News

Sunday, February 1, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

CDC: Get Vaccinated for Measles

CDC: Get Vaccinated for Measles

Reuters - US Online Video (Jan. 30, 2015) The CDC is urging people to get vaccinated for measles amid an outbreak that began at Disneyland and has now infected more than 90 people. Linda So reports. Video provided by Reuters
Powered by NewsLook.com
Obama To Outline New Plan For Personalized Medicine

Obama To Outline New Plan For Personalized Medicine

Newsy (Jan. 30, 2015) President Obama is expected to speak with drugmakers Friday about his Precision Medicine Initiative first introduced last week. Video provided by Newsy
Powered by NewsLook.com
NFL Concussions Down; Still on Parents' Minds

NFL Concussions Down; Still on Parents' Minds

AP (Jan. 30, 2015) The NFL announced this week that the number of game concussions dropped by a quarter over last season. Still, the dangers of the sport still weigh on players, and parents&apos; minds. (Jan. 30) Video provided by AP
Powered by NewsLook.com
U.S. Wants to Analyze DNA from 1 Million People

U.S. Wants to Analyze DNA from 1 Million People

Reuters - US Online Video (Jan. 30, 2015) The U.S. has proposed analyzing genetic information from more than 1 million American volunteers to learn how genetic variants affect health and disease. Rough Cut (no reporter narration). Video provided by Reuters
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