Featured Research

from universities, journals, and other organizations

How calorie-restricted diets fight obesity and extend life span

Date:
December 29, 2009
Source:
American Chemical Society
Summary:
Scientists searching for the secrets of how calorie-restricted diets increase longevity are reporting discovery of proteins in the fat cells of human volunteers that change as pounds drop off. The proteins could become markers for monitoring or boosting the effectiveness of calorie-restricted diets -- the only scientifically proven way of extending life span in animals.

Fruits and vegetables are a key part of calorie-restricted diets, which may increase longevity.
Credit: iStockphoto/Jack Puccio

Scientists searching for the secrets of how calorie-restricted diets increase longevity are reporting discovery of proteins in the fat cells of human volunteers that change as pounds drop off. The proteins could become markers for monitoring or boosting the effectiveness of calorie-restricted diets -- the only scientifically proven way of extending life span in animals.

Their study appears online in ACS' Journal of Proteome Research.

Edwin Mariman and colleagues note that scientists have long known that sharply restricting intake of calories while maintaining good nutrition makes animals live longer and stay healthier. Recent studies suggest that people may gain similar benefits. But scientists know little about how these diets work in humans, particularly their effects on cells that store fat.

The new study focused on proteins in abdominal subcutaneous fat cells from a group of overweight people before and after they went on a five-week-long calorie-restricted diet. The volunteers each lost an average of 21 pounds. Scientists identified changes in the levels of 6 proteins as the volunteers shed pounds, including proteins that tell the body to store fat. These proteins could serve as important markers for improving or tracking the effectiveness of therapies involving calorie-restricted diets, they say.


Story Source:

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


Journal Reference:

  1. Bouwman et al. The Physiologic Effects of Caloric Restriction Are Reflected in the in Vivo Adipocyte-Enriched Proteome of Overweight/Obese Subjects. Journal of Proteome Research, 2009; 8 (12): 5532 DOI: 10.1021/pr900606m

Cite This Page:

American Chemical Society. "How calorie-restricted diets fight obesity and extend life span." ScienceDaily. ScienceDaily, 29 December 2009. <www.sciencedaily.com/releases/2009/12/091209134642.htm>.
American Chemical Society. (2009, December 29). How calorie-restricted diets fight obesity and extend life span. ScienceDaily. Retrieved July 24, 2014 from www.sciencedaily.com/releases/2009/12/091209134642.htm
American Chemical Society. "How calorie-restricted diets fight obesity and extend life span." ScienceDaily. www.sciencedaily.com/releases/2009/12/091209134642.htm (accessed July 24, 2014).

Share This




More Health & Medicine News

Thursday, July 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Idaho Boy Helps Brother With Disabilities Complete Triathlon

Idaho Boy Helps Brother With Disabilities Complete Triathlon

Newsy (July 23, 2014) An 8-year-old boy helped his younger brother, who has a rare genetic condition that's confined him to a wheelchair, finish a triathlon. Video provided by Newsy
Powered by NewsLook.com
Thousands Who Can't Afford Medical Care Flock to Free US Clinic

Thousands Who Can't Afford Medical Care Flock to Free US Clinic

AFP (July 23, 2014) America may be the world’s richest country, but in terms of healthcare, the World Health Organisation ranks it 37th. Thousands turned out for a free clinic run by "Remote Area Medical" with a visit from the Governor of Virginia. Duration: 2:40 Video provided by AFP
Powered by NewsLook.com
Stone Fruit Listeria Scare Causes Sweeping Recall

Stone Fruit Listeria Scare Causes Sweeping Recall

Newsy (July 22, 2014) The Wawona Packing Company has issued a voluntary recall on the stone fruit it distributes due to a possible Listeria outbreak. Video provided by Newsy
Powered by NewsLook.com
Huge Schizophrenia Study Finds Dozens Of New Genetic Causes

Huge Schizophrenia Study Finds Dozens Of New Genetic Causes

Newsy (July 22, 2014) The 83 new genetic markers could open dozens of new avenues for schizophrenia treatment research. 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