Featured Research

from universities, journals, and other organizations

Aerobic Exercise Increases A Blood Protein That May Suppress Appetite

Date:
June 18, 2008
Source:
The Endocrine Society
Summary:
Three months of aerobic exercise decreased body fat and calorie intake in overweight and obese people, according to a new study, and the researchers believe that changes to a central nervous system factor are responsible.

Three months of aerobic exercise decreased body fat and calorie intake in overweight and obese people, according to a new study, and the researchers believe that changes to a central nervous system factor are responsible.

A research team at the University of Chile Clinical Hospital in Santiago, led by A. Veronica Araya, MD, assistant professor, showed that decreased food intake and reduced body mass index (BMI), a measure of body fat, were linked to increased levels of a protein called brain-derived neurotrophic factor, or BDNF. Its main role is promoting the growth and survival of nerve cells, according to Araya.

However, recent evidence shows that BDNF also is related to obesity and metabolism. The authors speculated that it could suppress appetite.

The team evaluated blood levels of BDNF before and after a three-month program of aerobic exercise in 15 overweight or obese men and women. The seven men and eight women, ages 26 to 51, worked out on a treadmill and bicycle. They were asked about their calorie intake and told to continue eating their usual number of calories. The participants were unaware that one of the study's objectives was to evaluate changes in food intake.

At the end of the study, the subjects had decreased BMI, waist circumference, and blood pressure, the data showed. They also reported consuming fewer calories than at the beginning of the study. Over the three months, BDNF levels greatly increased. This higher the concentration of BDNF, the less the subject's intake of calories and the greater the weight loss, Araya said.

Thus, it is possible that increases in BDNF suppress appetite, she said. They did not test appetite suppression directly, but some past studies have shown that aerobic exercise suppresses appetite.

"It is important to clarify the factors involved in the response to different weight loss therapies," Araya said, "because we could find a marker to predict response to the intervention."

For instance, the marker, such as BDNF, might help healthcare providers select who will benefit from exercise, she explained.

Detailed results will be presented at The Endocrine Society's 90th Annual Meeting in San Francisco.


Story Source:

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


Cite This Page:

The Endocrine Society. "Aerobic Exercise Increases A Blood Protein That May Suppress Appetite." ScienceDaily. ScienceDaily, 18 June 2008. <www.sciencedaily.com/releases/2008/06/080616115855.htm>.
The Endocrine Society. (2008, June 18). Aerobic Exercise Increases A Blood Protein That May Suppress Appetite. ScienceDaily. Retrieved July 25, 2014 from www.sciencedaily.com/releases/2008/06/080616115855.htm
The Endocrine Society. "Aerobic Exercise Increases A Blood Protein That May Suppress Appetite." ScienceDaily. www.sciencedaily.com/releases/2008/06/080616115855.htm (accessed July 25, 2014).

Share This




More Health & Medicine News

Friday, July 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Beatings and Addiction: Pakistan Drug 'clinic' Tortures Patients

Beatings and Addiction: Pakistan Drug 'clinic' Tortures Patients

AFP (July 24, 2014) A so-called drugs rehab 'clinic' is closed down in Pakistan after police find scores of ‘patients’ chained up alleging serial abuse. Duration 03:05 Video provided by AFP
Powered by NewsLook.com
Too Few Teens Receiving HPV Vaccination, CDC Says

Too Few Teens Receiving HPV Vaccination, CDC Says

Newsy (July 24, 2014) The Centers for Disease Control and Prevention is blaming doctors for the low number of children being vaccinated for HPV. Video provided by Newsy
Powered by NewsLook.com
New Painkiller Designed To Discourage Abuse: Will It Work?

New Painkiller Designed To Discourage Abuse: Will It Work?

Newsy (July 24, 2014) The FDA approved Targiniq ER on Wednesday, a painkiller designed to keep users from abusing it. Like any new medication, however, it has doubters. Video provided by Newsy
Powered by NewsLook.com
Doctor At Forefront Of Fighting Ebola Outbreak Gets Ebola

Doctor At Forefront Of Fighting Ebola Outbreak Gets Ebola

Newsy (July 24, 2014) Sheik Umar Khan has treated many of the people infected in the Ebola outbreak, and now he's become one of them. 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