Mechanisms of Maternal Diet-Induced Obesity Affecting the Offspring Brain and Development of Affective Disorders

Area of Science:

• Neuroscience
• Metabolic Disorders
• Developmental Biology

Background:

• Depression and metabolic diseases are rising global health concerns with a complex bidirectional relationship.
• Maternal depression and obesity during pregnancy are linked to increased neuropsychiatric disease risk in offspring.
• The perinatal period is critical, with maternal factors significantly influencing offspring development.

Purpose of the Study:

• To review the mechanisms by which maternal obesity disrupts the offspring's gut-brain axis.
• To explore how these disruptions prime offspring for affective disorders.
• To identify potential therapeutic targets related to the maternal microbiome.

Main Methods:

• Review of existing epidemiological and mechanistic studies.
• Detailed examination of maternal factors influencing offspring neurodevelopment.
• Focus on the gut-brain axis and its components.

Main Results:

• Maternal obesity impacts offspring via altered maternal care, microbiome, inflammation, breast milk, and placental metabolites.
• Offspring are susceptible to gut-brain interaction disorders, affecting brain metabolism, neurotransmission, and behavior.
• Gut dysbiosis in offspring is a key feature linking maternal obesity to brain dysfunction.

Conclusions:

• Maternal obesity significantly affects offspring neurodevelopment through the gut-brain axis.
• The maternal gut microbiome is a crucial, potentially modifiable factor in this relationship.
• Further research into maternal nutrition, microbiome, and metabolites is needed for novel therapeutic strategies.