Prenatal stress and elevated seizure susceptibility: Molecular inheritable changes

Area of Science:

• Neuroscience
• Developmental Psychology
• Genetics

Background:

• Early-life stress can negatively impact offspring physical and mental health.
• Prenatal stress (PS) is linked to neurobehavioral complications, including seizures of unclear etiology.
• Sex differences in PS effects on seizure susceptibility warrant further investigation.

Purpose of the Study:

• To review the association between prenatal stress and seizure susceptibility.
• To explore underlying mechanisms, including sex differences, HPA axis function, neurotransmitter systems, and epigenetic changes.
• To discuss the role of drugs in seizure initiation and the potential for preventing stress-induced epilepsy.

Main Methods:

• Literature review focusing on studies examining prenatal stress and seizure susceptibility.
• Analysis of research on the effects of PS on the hypothalamic-pituitary-adrenal (HPA) axis.
• Review of studies investigating PS impact on glutamatergic, GABAergic, and adrenergic systems.
• Examination of epigenetic modifications in epilepsy related to prenatal stress.

Main Results:

• Prenatal stress can alter nervous system function, increasing seizure susceptibility.
• The hypothalamic-pituitary-adrenal (HPA) axis, neurotransmitter systems (glutamatergic, GABAergic, adrenergic), and epigenetic changes are implicated mechanisms.
• Sex differences play a role in the manifestation of PS-induced seizure susceptibility.

Conclusions:

• Prenatal stress has lasting effects, potentially leading to epilepsy.
• Understanding the mechanisms linking PS to epilepsy can inform preventative strategies.
• Preventing avoidable prenatal stress factors may reduce the risk of future psychiatric and behavioral disorders, including epilepsy.