Striatal morphological and functional alterations induced by prenatal alcohol exposure

Area of Science:

• Neurobiology
• Developmental Neuroscience
• Neuroscience

Background:

• Prenatal alcohol exposure (PAE) is a preventable cause of developmental disabilities.
• PAE significantly impacts critical prenatal brain development periods, leading to postnatal mental disorders.
• Current treatments for PAE-induced morbidity are limited due to insufficient understanding of underlying neuroalterations.

Purpose of the Study:

• To review recent advances in understanding morphological and functional brain changes following PAE.
• To highlight the striatum's pivotal role in PAE-induced brain dysfunction.
• To identify the need for further research into PAE-induced alterations at multiple biological levels.

Main Methods:

• Review of existing human and laboratory evidence on PAE.
• Focus on neurobiological studies investigating the striatum in animal models.
• Analysis of research on morphological and functional brain alterations post-PAE.

Main Results:

• PAE is a significant risk factor for various postnatal mental disorders, including emotional, cognitive, and motor deficits.
• The striatum is a key brain region implicated in PAE-induced dysfunction, affecting behaviors like addiction and anxiety.
• PAE induces significant neuroalterations, impacting circuits, neurons, synapses, and molecular pathways.

Conclusions:

• Further research is urgently needed to elucidate PAE-induced alterations in the striatum at circuit, neuronal, synaptic, and molecular levels.
• Understanding these changes can improve insights into PAE-induced neuroplasticity.
• Identifying novel biological targets is essential for developing effective treatments for PAE-related mental disorders.