Leptin and Adiponectin Serum Levels from Infancy to School Age: Factors Influencing Tracking

Area of Science:

• Pediatric Endocrinology
• Developmental Biology
• Obesity Research

Background:

• Adiponectin and leptin levels in early childhood show persistence into later years.
• Prenatal and early life exposures may shape the longitudinal changes in leptin and adiponectin.
• Understanding these early life influences is crucial for addressing childhood obesity.

Purpose of the Study:

• To identify distinct subgroups of children based on their leptin and adiponectin trajectories during the first eight years of life.
• To explore early life factors that predict an individual's inclusion in specific trajectory classes.
• To investigate the relationship between early adipokine patterns and later health outcomes.

Main Methods:

• Analysis of data from the EU Childhood Obesity Project (CHOP) cohort.
• Inclusion of 459 children with adiponectin and leptin measurements at 6 months, 5.5 years, and 8 years of age.
• Application of trajectory modeling to identify distinct developmental patterns for leptin and adiponectin.

Main Results:

• Three distinct leptin trajectories were identified: low-decreasing, medium-stable, and high-increasing.
• Two adiponectin trajectories were observed: lower and higher.
• Female gender, formula feeding, maternal overweight, and maternal smoking during pregnancy were significantly associated with a higher risk of belonging to the high-increasing leptin trajectory group.

Conclusions:

• Maternal smoking during pregnancy, maternal overweight, and formula feeding are key factors differentiating leptin trajectory courses in children.
• These identified factors influencing leptin trajectories may be linked to underlying changes in adiposity.
• Further research is needed to fully elucidate the mechanisms connecting early life factors, adipokine trajectories, and long-term health.