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:
TAG: Glucose deficit affects young and old could impact school schedules

(Date:7/21/2014)... A University of California, San Diego School of Medicine-led ... not recognize the potentially serious health consequences of childhood ... in helping their child reach a healthy weight. , ... of the Academy of Nutrition and Dietetics . , ... and physical activity behaviors," said lead author Kyung Rhee, ...
(Date:7/21/2014)... cheating in science are among the topics to ... experts in Montreal at the three International Union ... to August 1, 2014. Some 2,000 participants from ... 14th International Congress of Bacteriology and Applied Microbiology, ... Microbiology, and the 16th International Congress of Virology. ...
(Date:7/21/2014)... 154 hotspots in areas across Riau province on Sunday, ... again following a decline in rainfall. The number ... than what had been reported one day prior, which ... scattered in six regencies and municipalities, most of which ... related haze it creates could potentially spread via winds ...
Breaking Biology News(10 mins):Parents rank their obese children as 'very healthy' 2Montreal hosts International Union of Microbiology Societies congresses 2
(Date:7/22/2014)... CTD Holdings, Inc. (OTCQB:CTDH), a manufacturer ... cosmetics, and other markets, announced today that it has ... qualified private investors led by Novit L.P., an investment ... transaction involved the signing of a Securities Purchase Agreement ... Stock at a price per share of $1.00, resulting ...
(Date:7/22/2014)... 22, 2014 Automated cell culture systems ... of cell culture. They allow production of optimum cells ... researchers in drug discovery and industries and biopharmaceutical companies. ... production, iPSC research, cryobanking, cell-based assays, and cellular expression ... , Analysts forecast the Global Cell Culture market ...
(Date:7/22/2014)... Wisconsin (PRWEB) July 22, 2014 ... in attendance at the 2014 NCSL International Workshop ... Booth #423 will feature CONDEC pressure instrumentation, OIML ... weights, and the new, customized sets, Essential Weights™. ... to promote cooperative efforts in solving the common ...
(Date:7/22/2014)... (PRWEB) July 22, 2014 The ... clear and concise visual representation of history, migration, and ... was always regaled by family history stories stemming from ... as the "old country." Pictures and 8mm home movies ... side of the family, and Steve ordered a test ...
Breaking Biology Technology:CTD Holdings Closes $1.725 Million Private Placement 2CTD Holdings Closes $1.725 Million Private Placement 3Global Cell Culture Market to Grow at 10.27% CAGR by 2018 Forecasts a New Research Report ReportsnReports.com 2Global Cell Culture Market to Grow at 10.27% CAGR by 2018 Forecasts a New Research Report ReportsnReports.com 3Global Cell Culture Market to Grow at 10.27% CAGR by 2018 Forecasts a New Research Report ReportsnReports.com 4Rice Lake Weighing Systems Showcases Metrology Solutions for the 2014 NCSL International Workshop & Symposium 2DNA Test from DNA Spectrum Shows Heritage Like a Map of the Past 2DNA Test from DNA Spectrum Shows Heritage Like a Map of the Past 3DNA Test from DNA Spectrum Shows Heritage Like a Map of the Past 4
Cached News: