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.

Related Articles


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 January 29, 2015 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 January 29, 2015).

Share This


More From ScienceDaily



More Health & Medicine News

Thursday, January 29, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Oxfam Calls for Massive Aid for Ebola-Hit West Africa

Oxfam Calls for Massive Aid for Ebola-Hit West Africa

AFP (Jan. 29, 2015) Oxfam International has called for a multi-million dollar post-Ebola "Marshall Plan", with financial support given by wealthy countries, to help Guinea, Sierra Leone and Liberia to recover. Duration: 01:10 Video provided by AFP
Powered by NewsLook.com
Are We Winning The Fight Against Ebola?

Are We Winning The Fight Against Ebola?

Newsy (Jan. 29, 2015) The World Health Organization announced the fight against Ebola has entered its second phase as the number of cases per week has steadily dropped. Video provided by Newsy
Powered by NewsLook.com
Calif. Health Officials Campaign Against E-Cigarettes

Calif. Health Officials Campaign Against E-Cigarettes

Newsy (Jan. 29, 2015) The California Health Department says e-cigarettes are a public health risk for both smokers and those who inhale e-cig smoke secondhand. Video provided by Newsy
Powered by NewsLook.com
Measles Scare Sends 66 Calif. Students Home

Measles Scare Sends 66 Calif. Students Home

AP (Jan. 29, 2015) Officials say 66 students at a Southern California high school have been told to stay home through the end of next week because they may have been exposed to measles and are not vaccinated. (Jan. 29) Video provided by AP
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