HOME >> BIOLOGY >> NEWS
Glucose deficit affects young and old, could impact school schedules

CHAMPAIGN, Ill. Next time an older person says that thinking is exhausting, believe it. Concentration, researchers say, drains glucose from a key part of the brains of young and old rats, but dramatically more from older brains, which also take longer to recover. The findings, detailed in two studies published in May, are part of research that eventually may impact how schools schedule classes and meals as well as our understanding of age-related deficits in memory and learning, said lead researcher Paul E. Gold of the University of Illinois. "The brain runs on glucose," said Ewan C. McNay of Yale University. "Young rats can do a pretty good job of supplying all the glucose that a particular area of the brain needs until the task becomes difficult. For an old rat given the same task, the brain glucose supply vanishes out the window. This correlates with a big deficit in performance. A lack of fuel affects the ability to think and remember."

Glucose is a naturally occurring sugar in the blood and the primary source of energy in human brain metabolism. Last year, Gold, a professor of psychology, and McNay broke ground when they reported declines of hippocampal extracellular glucose concentrations in rats as they went through a maze. Their findings challenged conventional thinking about levels and stability of glucose in the brain. It has long been thought that the brain always has an ample supply of glucose short of starvation.

"While this is the case in terms of consciousness, the new findings suggest that glucose is not always present in ample amounts to optimally support learning and memory functions," said Gold, who also is director of the Medical Scholars Program in the UI College of Medicine at Urbana-Champaign.

In the May issue of Neurobiology of Learning and Memory, Gold, McNay and Richard C. McCarty, formerly at the University of Virginia, reported that glucose drainage during a task is site specific. Hippocampal extracellular levels fe
'"/>

Contact: Jim Barlow
b-james3@uiuc.edu
217-333-5802
University of Illinois at Urbana-Champaign
3-Jun-2001


Page: 1 2

Related biology news :

1. Rare deficit maps thinking circuitry
2. Decreasing toxins in brains of Alzheimers patients keep cognitive deficits at bay
3. Researchers target deficit irrigation for wine grapes
4. Lack of specific brain protein causes marked deficits in learning, memory
5. Gray matter damage in the brain of MS patients linked to cognitive, physical deficits
6. Adult alcoholism and attention-deficit hyperactivity disorder are connected
7. Rutgers researcher advances understanding of attention deficit disorder and schizophrenia
8. Is there a link between soy formula and attention deficit disorder?
9. ADHD in a SNAP: The SNAP gene in attention deficit hyperactivity
10. The immune system may be involved in the susceptibility to childhood attention deficit hyperactivity disorder (ADHD)
11. A stomach enzyme deficit may place women at more risk from drinking alcohol

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/14/2017)... (NYSE: IBM ) is introducing several innovative partner startups ... collaboration between startups and global businesses, taking place in ... nine startups will showcase the solutions they have built with ... France is one of the ... percent increase in the number of startups created between 2012 ...
(Date:5/16/2017)... 16, 2017   Bridge Patient Portal , ... MD EMR Systems , an electronic medical ... GE, have established a partnership to build an ... the GE Centricity™ products, including Centricity Practice Solution ... These new integrations will allow healthcare delivery ...
(Date:4/19/2017)... New York , April 19, 2017 ... competitive, as its vendor landscape is marked by the ... the market is however held by five major players ... Safran. Together these companies accounted for nearly 61% of ... of the leading companies in the global military biometrics ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... ... October 12, 2017 , ... ... platform specifically designed for life science researchers to analyze and interpret datasets, ... Franklin, who made a major contribution to the discovery of the double-helix ...
(Date:10/11/2017)... ... ... Personal eye wash is a basic first aid supply for any work environment, but most ... you rinse first if a dangerous substance enters both eyes? It’s one less decision, and ... unique dual eye piece. , “Whether its dirt and debris, or an acid or alkali, ...
(Date:10/11/2017)... , Oct. 11, 2017  VMS BioMarketing, a leading ... a nationwide oncology Clinical Nurse Educator (CNE) network, which will ... need for communication among health care professionals to enhance the ... nurses, office staff, and other health care professionals to help ... breast cancer. ...
(Date:10/11/2017)... ... October 11, 2017 , ... ... implantation and pregnancy rates in frozen and fresh in vitro fertilization (IVF) ... and maternal age to IVF success. , After comparing the results from the ...
Breaking Biology Technology:
Cached News: