Mommy issues: how maternal diet shapes offspring mitochondrial physiology

Area of Science:

• Developmental biology
• Mitochondrial biology
• Nutritional science

Background:

• Early life exposures, including maternal diet and obesity, are linked to increased cardiometabolic disease risk in offspring.
• Mitochondria are central to energy metabolism and cellular stress, making them potential mediators of diet-induced developmental programming.
• Understanding these early life effects is crucial for preventing childhood obesity and type 2 diabetes.

Purpose of the Study:

• To review the impact of maternal high-calorie diets on offspring mitochondrial structure and function.
• To explore how mitochondrial alterations influence metabolic health and disease risk.
• To discuss mechanisms linking maternal diet to offspring mitochondrial dysfunction.

Main Methods:

• Literature review of studies examining maternal diet effects on offspring mitochondria in animal models.
• Analysis of data on mitochondrial content, architecture, and bioenergetics in skeletal and cardiac muscle.
• Synthesis of findings on substrate utilization, oxidative capacity, and metabolic flexibility.

Main Results:

• Maternal high-calorie diets alter offspring mitochondrial content, architecture, and bioenergetics.
• These mitochondrial changes impair substrate dependence, oxidative capacity, and metabolic efficiency.
• Reduced metabolic flexibility and increased cardiometabolic risk are observed in offspring.

Conclusions:

• Maternal diet quality significantly impacts offspring mitochondrial physiology, contributing to long-term cardiometabolic disease risk.
• Mechanisms include redox imbalance, disrupted mitochondrial-nuclear communication, and epigenetic changes.
• Targeting mitochondrial health during development offers potential therapeutic strategies.