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:8/24/2015)... TOWN, South Africa , August 24, 2015 ... Germany ,s largest biometrics manufacturer DERMALOG and ... with the "2015 African Biometrics Company of the Year ... in Nigeria .   -Cross ... and http://www.presseportal.de/nr/8896 - On Thursday evening, ...
(Date:8/20/2015)... , Aug. 20, 2015   Sensory, ... on improving the user experience and security of ... technologies, today announced that its TrulySecure™ ... authentication software to be FIDO Certified™. ... for compliance with the FIDO UAF (Universal Authentication ...
(Date:8/18/2015)... 2015  Navitas today announced that it ... Submission Content Management webinar scheduled on August ... to the Implementation of Regulatory Submission Standards ... industry, vendors, health authorities, consultants and the ... a standard method of implementing electronic submission ...
Breaking Biology News(10 mins):Frost & Sullivan Honors DERMALOG with Biometrics Prize for Achievements in Africa 2Frost & Sullivan Honors DERMALOG with Biometrics Prize for Achievements in Africa 3TrulySecure From Sensory Becomes First Face and Voice Biometrics Technology to be FIDO UAF Certified 2TrulySecure From Sensory Becomes First Face and Voice Biometrics Technology to be FIDO UAF Certified 3TrulySecure From Sensory Becomes First Face and Voice Biometrics Technology to be FIDO UAF Certified 4TrulySecure From Sensory Becomes First Face and Voice Biometrics Technology to be FIDO UAF Certified 5Navitas, a Key Contributor in IRISS Forum Webinar 2Navitas, a Key Contributor in IRISS Forum Webinar 3
(Date:8/27/2015)... , Aug. 27, 2015 In response ... FedEx, UPS and The US Postal Service to ... classified as ,select agents, by the CDC, Marken ... handling these sensitive shipments. Marken uses ... regulations, trained and certified personnel to ensure the ...
(Date:8/26/2015)... ... 26, 2015 , ... MediVet Biologics, a leader in Veterinary ... to open in Manhattan, Kansas in early October, 2015. The location of the ... and development through collaboration with researchers from Kansas State University’s College of Veterinary ...
(Date:8/26/2015)... N.J. , Aug. 26, 2015  Roka Bioscience, ... focused on providing advanced testing solutions for the detection ... CEO will present at the Sidoti & Company Emerging ... conference will be held at the New York Marriott ... presentation will be available through the investor relations section ...
(Date:8/26/2015)... MIAMI , Aug. 26, 2015  The ... at the University of Miami Miller School of ... its clinical trial to test for the first ... was successfully completed.  This FDA approved Phase I/II ... islet transplantation and is an important first step ...
Breaking Biology Technology:Marken Ensures Safe Transportation Of Select Agents And Toxins 2MediVet Biologics Animal Health Secures Additional Laboratory Facility in Manhattan, Kansas 2MediVet Biologics Animal Health Secures Additional Laboratory Facility in Manhattan, Kansas 3Diabetes Research Institute Successfully Transplants First Patient In Pilot BioHub Trial 2Diabetes Research Institute Successfully Transplants First Patient In Pilot BioHub Trial 3Diabetes Research Institute Successfully Transplants First Patient In Pilot BioHub Trial 4
Cached News: