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Plasma adiponectin increases postprandially in obese, but not in lean, subjects
Patrick J English1, Steven R Coughlin, Katharine Hayden
1The University of Liverpool Diabetes and Endocrinology Research Group, Clinical Sciences Centre, Liverpool, United Kingdom.
Obesity Research
|July 12, 2003
Summary
Obese individuals show a significant post-meal increase in adiponectin (a hormone), unlike lean individuals. This rise may benefit glucose and lipid metabolism in obesity.
Area of Science:
- Endocrinology
- Metabolic Health
Background:
- Adiponectin is an adipokine with known metabolic regulatory functions.
- Understanding adiponectin dynamics post-meal is crucial for metabolic health assessment.
Purpose of the Study:
- To investigate acute plasma adiponectin responses to a test meal in lean versus obese subjects.
Main Methods:
- 13 lean and 11 obese subjects were studied after an overnight fast.
- Plasma concentrations of glucose, insulin, and adiponectin were measured at baseline and at 15, 30, 60, 120, and 180 minutes post-breakfast.
Main Results:
- Fasting adiponectin was lower in obese subjects (2.9 µg/mL) compared to lean subjects (8.6 µg/mL).
- Obese subjects exhibited a 4-fold postprandial increase in adiponectin, peaking at 60 minutes (12.1 µg/mL).
- Lean subjects showed no significant postprandial changes in plasma adiponectin.
Conclusions:
- The postprandial surge in adiponectin in obese individuals may play a beneficial role in glucose and lipid metabolism.
- This adiponectin response could be a compensatory mechanism for maintaining normal glucose tolerance in obesity and insulin resistance.