Vitamin D deficiency: universal risk factor for multifactorial diseases?

Area of Science:

• Endocrinology
• Molecular Biology
• Public Health

Background:

• Multifactorial diseases cause significant morbidity and mortality in Western populations.
• Vitamin D deficiency is linked to bone disorders and increasingly implicated in other chronic conditions.
• Universal risk factors, like vitamin D deficiency, offer targets for simultaneous disease prevention.

Purpose of the Study:

• To review the molecular actions of the vitamin D receptor (VDR).
• To identify mechanisms and pathways through which vitamin D deficiency acts as a universal risk factor.
• To explore the pleiotropic effects of vitamin D analogues.

Main Methods:

• Searched for genes containing vitamin D response elements (VDREs) to identify VDR-regulated genes.
• Refined gene selection to include those modulated by VDR analogues in vivo.
• Reviewed observational, intervention, and mechanistic studies on vitamin D's role in multifactorial diseases.

Main Results:

• Identified a limited number of factors potentially mediating vitamin D's pleiotropic effects, including growth factors, hormones, and inflammatory mediators.
• Vitamin D response elements (VDREs) were key in identifying VDR-regulated genes.
• Evidence from multiple study types supports vitamin D's role in diverse multifactorial conditions.

Conclusions:

• Vitamin D deficiency is a significant universal risk factor impacting various multifactorial diseases.
• The molecular actions of VDR provide pathways for understanding vitamin D's broad health effects.
• Further research into vitamin D's multifaceted actions could enable disease-overriding interventions.