Navigation Links
Exercise Keeps the Brain Young
Date:11/21/2008

Experiments in mice find running increases production of neural stem cells

FRIDAY, Nov. 21 (HealthDay News) -- In experiments in mice, exercise appears to reverse the decline in the production of brain stem cells usually seen with aging, Taiwanese researchers report.

This remarkable restoration of the brain's ability to stave off aging appears to be due to exercise's ability to restore a neurochemical that is essential for the production of new brain cells.

"As we age, the ability of producing new neurons is decreasing. However, moderate running can improve the production, survival and maturation of new neurons in the brain," said lead researcher Yu-Min Kuo, an associate professor in the Department of Cell Biology and Anatomy at the National Cheng Kung University Medical College in Tainan. "The younger one starts to run, the better."

The report is published in the November issue of the Journal of Applied Physiology.

For the study, Kuo's team trained young, adult, middle-aged and old mice to run on a treadmill for up to an hour a day. The researchers then looked at the ability of the brain to continue to produce neural cells.

In middle-aged mice, the number of neural progenitor and mitotic cells in the hippocampus, a brain region intimately associated with learning and memory, decreased dramatically, Kuo explained.

"Compared to the sedentary middle-aged mice, moderate treadmill running not only doubled the production of neural stem cells but also enhanced the survival and growth of the newborn neurons," Kuo said. "Running had a more pronounced effect on younger animals than older counterparts."

The researchers found that this phenomenon could not be explained by an increase in a hormone called corticosterone, as they had speculated.

Rather, moderate running increased the concentrations of brain-derived neuron growth factor and its receptor, TrkB, in the hippocampus, while the level of corticosterone in mice stayed constant, Kuo said.

"The production of neural stem cells in the hippocampus decreases dramatically by middle age, and moderate running exercise can slow this trend," Kuo said. "Chronic moderate running enhances the production of neurotrophic factor, which promotes neurogenesis, and the differentiation and survival of newborn neurons."

Paul Sanberg, director of the University of South Florida Center for Aging and Brain Repair, concurs that exercise could promote the growth of new brain stem cells in people.

"This provides more understanding of its potential in humans," Sanberg said. "That there is a significant effect in middle-aged animals suggests that in middle-aged people that this would also occur."

There needs to be more data in humans to see if the growth of new brain cells has an effect on cognitive ability, Sanberg noted. "But it's encouraging the continued use of exercise to maintain health and proper health of our brain," he said.

More information

For more information on the aging brain, visit the U.S. National Institute on Aging.



SOURCES: Yu-Min Kuo, Ph.D., associate professor, department of cell biology and anatomy, National Cheng Kung University Medical College, Tainan, Taiwan; Paul Sanberg, Ph.D., D.Sc., professor, neurosurgery, and director, University of South Florida Center for Aging and Brain Repair, Tampa; November 2008 Journal of Applied Physiology


'/>"/>
Copyright©2008 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Exercise and yoga improves quality of life in women with early-stage breast cancer
2. Studies Prove Exercise Can Heal the Body Mind and Soul
3. 1 in 3 Varsity Athletes Has Exercise-Induced Asthma
4. Using the Internet to Promote Exercise
5. Less than 3 percent of UK 11-year-olds take enough exercise
6. Study fuels debate over whether exercise and body size influence ovarian cancer risk
7. Creatine in addition to exercise enhances strength in older adults
8. American Council on Exercise Offers 10 Tips for Surviving the Holidays
9. Highlands Acquisition Corp. Announces Exercise of Over-Allotment Option
10. Exercise And Health: Use Your Heart Rate As a Guide
11. Nine of 10 Women Attempt Exercise Goals After Initial Failure, Survey Shows
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Exercise Keeps the Brain Young
(Date:6/25/2016)... Beach, CA (PRWEB) , ... June 25, 2016 , ... ... UCLA with Magna Cum Laude and his M.D from the David Geffen School of ... Diego and returned to Los Angeles to complete his fellowship in hematology/oncology at the ...
(Date:6/25/2016)... ... , ... On Friday, June 10, Van Mitchell, Secretary of the Maryland Department ... in recognition of their exemplary accomplishments in worksite health promotion. , The Wellness at ... Wellness Symposium at the BWI Marriott in Linthicum Heights. iHire was one of 42 ...
(Date:6/24/2016)... Los Angeles, CA (PRWEB) , ... June 24, 2016 , ... ... plastic surgery procedures that most people are unfamiliar with. The article goes on to ... known procedures, but also many of these less common operations such as calf and ...
(Date:6/24/2016)... ... June 24, 2016 , ... June 19, 2016 is World Sickle Cell Observance ... and the benefits of holistic treatments, Serenity Recovery Center of Marne, Michigan, ... Disease. , Sickle Cell Disease (SCD) is a disorder of the red blood cells, ...
(Date:6/24/2016)... , ... June 24, 2016 , ... ... and Scientific Sessions in Dallas that it will receive two significant new grants ... grants came as PHA marked its 25th anniversary by recognizing patients, medical professionals ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... 2016  In a startling report released today, National Safety ... lacking a comprehensive, proven plan to eliminate prescription opioid overdoses. ... how states are tackling the worst drug crisis in recorded U.S. ... Kentucky , New Mexico , ... Of the 28 failing states, three – Michigan ...
(Date:6/23/2016)... 2016 Capricor Therapeutics, Inc. ... biotechnology company focused on the discovery, development and ... enrollment in its ongoing randomized HOPE-Duchenne clinical trial ... of its 24-patient target. Capricor expects the trial ... of 2016, and to report top line data ...
(Date:6/23/2016)... , June 23, 2016 , ... on Thursday, July 7, 2016 , , , , LOCATION: ... , , , , EXPERT PANELISTS:  , , , ... Senior Industry Analyst, Christi Bird; Senior Industry Analyst, Divyaa Ravishankar and ... The global pharmaceutical industry is witnessing an exceptional era. ...
Breaking Medicine Technology: