Glucose counterregulatory responses to hypoglycemia.
The brain relies almost exclusively on glucose for fuel. Therefore, adequate uptake of glucose from the plasma is key for normal brain function and survival. Despite wide variations in glucose flux (i.e., fed state, fasting state, etc), blood glucose is maintained in a very narrow range. This is accomplished by a series of hormonal and physiologic responses. As a result, hypoglycemia is a rare occurrence in normal individuals. However, glucose counterregulatory responses are altered in patients with diabetes treated with insulin especially after repeated hypoglycemia or antecedent exercise.
Department of Pediatrics, Washington University School of Medicine, St. Louis, Missouri 63110, USA.
SourcePediatric endocrinology reviews : PER 9:1 2011 Sep pg 463-73; quiz 474-5
Central Nervous System
Pub Type(s)Journal Article
Research Support, N.I.H., Extramural