fractional glucose utilization
Measure of the proportion of glucose uptake that occurs through insulin-dependent pathways in metabolic assessment.
Full Definition
Fractional glucose utilization refers to the quantitative assessment of glucose uptake efficiency by tissues, particularly skeletal muscle and adipose tissue, through insulin-dependent transport mechanisms. This measure is typically assessed during hyperinsulinemic-euglycemic clamp studies and represents the proportion of total glucose disposal that occurs via insulin-stimulated pathways. In cardiometabolic research, fractional glucose utilization serves as a refined measure of insulin sensitivity and can help distinguish between different mechanisms of glucose intolerance. Reduced fractional glucose utilization indicates impaired insulin action at the cellular level.
Usage
Usage note: Typically measured during gold-standard hyperinsulinemic-euglycemic clamp procedures.
In Context
- "Fractional glucose utilization was significantly reduced in subjects with metabolic syndrome compared to healthy controls." — Research study results
- "The intervention improved fractional glucose utilization by 23% during hyperinsulinemic clamp testing." — Clinical trial outcome report