Cannabis and synaptic reprogramming of the developing brain

Area of Science:

• Neurobiology
• Developmental Neuroscience
• Epigenetics

Background:

• Increased cannabis acceptance has led to higher usage among pregnant women, young mothers, and adolescents.
• Modern cannabis products contain potent levels of delta-9-tetrahydrocannabinol (THC).
• The endogenous cannabinoid system is crucial for normal neurodevelopment.

Purpose of the Study:

• To review the neurobiological effects of cannabinoid exposure during critical developmental periods (prenatal/perinatal and adolescent).
• To highlight the role of the endogenous cannabinoid system in neurodevelopment.
• To discuss the long-term implications of developmental cannabis exposure, including epigenetic modifications.

Main Methods:

• Literature review of studies on cannabinoid exposure and neurodevelopment.
• Analysis of neurobiological mechanisms, focusing on synaptic plasticity.
• Examination of epigenetic reprogramming associated with cannabis exposure.

Main Results:

• Developmental cannabinoid exposure is associated with impaired synaptic plasticity.
• Epigenetic reprogramming plays a significant role in maintaining long-term neurological effects.
• These epigenetic changes can persist into adulthood and across generations.

Conclusions:

• Cannabis exposure during development can lead to lasting neurobiological alterations.
• Epigenetic mechanisms are key mediators of these long-term effects.
• The environment-responsive nature of epigenetics offers potential therapeutic targets to mitigate cannabis-induced neural perturbations.