Vitamin D: Brain and Behavior.

Area of Science:

• Neuroscience
• Endocrinology
• Developmental Biology

Background:

• Vitamin D was first proposed as a neurosteroid 20 years ago.
• Extensive research has confirmed its significant role in brain development and function.

Purpose of the Study:

• To review the genomic and nongenomic actions of vitamin D in animal models.
• To integrate data on vitamin D's roles in developing and mature brains.
• To outline mechanisms by which vitamin D shapes behavior.

Main Methods:

• Review of cellular and animal model studies.
• Integration of existing research on vitamin D's neuroprotective functions.
• Analysis of genomic and nongenomic mechanisms.

Main Results:

• Vitamin D differentiates the developing brain, acting as a key steroid regulator.
• Vitamin D plays roles in both developing and mature brains, influencing neurophysiology and behavior.
• Vitamin D deficiency is linked to increased risk of neurodevelopmental disorders (e.g., autism, schizophrenia) and degenerative conditions.

Conclusions:

• Vitamin D is confirmed as a critical neurosteroid regulating brain development and function.
• Understanding vitamin D's actions is crucial for addressing neurodevelopmental and degenerative disorders.
• Further research into vitamin D's mechanisms can inform therapeutic strategies.