Related Experiment Video
Updated: Aug 8, 2026
09:29
Skeletal Muscle Gender Dimorphism from Proteomics
Published on: December 14, 2011
Gender differences in serum leptin levels in humans
M S Hickey1, R G Israel, S N Gardiner
1Human Performance Laboratory, School of Medicine, East Carolina University, Greenville, North Carolina 27858, USA.
Biochemical and Molecular Medicine
|October 1, 1996
Summary
Leptin levels, crucial for satiety and thermogenesis, are primarily linked to body fat in humans. This study confirms leptin
Area of Science:
- Endocrinology
- Human Physiology
- Obesity Research
Background:
- Leptin, a hormone from adipose tissue, regulates appetite and metabolism.
- Previous studies linked leptin to body fat, but adiposity measures varied.
- The influence of fat distribution and fitness on leptin requires further investigation.
Purpose of the Study:
- To re-evaluate the relationship between leptin and body fat using hydrodensitometry.
- To explore how regional fat distribution and cardiorespiratory fitness affect leptin levels.
- To investigate potential gender differences in leptin-adiposity correlation.
Main Methods:
- Measured fasting serum leptin concentrations in 333 males and 63 females.
- Utilized hydrodensitometry for accurate body fat assessment.
- Employed multiple regression analysis, adjusting for age, fitness, and insulin levels.
Main Results:
- Leptin concentration was significantly correlated with adiposity in both genders.
- Fat mass predicted leptin in males (51% variance), while body fat percentage predicted it in females (49% variance).
- The leptin-adiposity link remained significant irrespective of fat distribution or cardiorespiratory fitness.
Conclusions:
- Circulating leptin is predominantly a function of total adiposity.
- The relationship between leptin and body fat is independent of fat distribution and cardiorespiratory fitness.
- A distinct gender difference exists in how leptin relates to body fat mass.
