Vitamin D in Disease Prevention and Cure-Part I: An Update on Molecular Mechanism and Significance on Human Health.
Level 5 - mechanism / opinion, no new human data
Narrative review synthesizing molecular mechanisms without systematic search methodology or primary data
PubMed 40625600 · doi:10.1007/s12291-024-01251-7
What was done
The authors conducted a narrative literature review (part 1 of a multi-part series) summarizing molecular pathways, signaling cascades, and physiological actions of vitamin D across diverse health conditions, including central nervous system and neurodevelopmental/neurodegenerative disorders, multiple cancers (oral, prostate, breast, colon), viral infections, and male and female reproductive health.
What was found
The abstract reports no quantitative data, effect estimates, or statistical findings. It presents qualitative descriptions of vitamin D's proposed mechanistic involvement in neural function, oncogenesis, viral immunity, and fertility and pregnancy.
Why it matters
It provides a broad conceptual overview of the molecular biology and proposed systemic roles of vitamin D across multiple disease categories.
Limits
As a narrative review, it provides no new empirical data, systematic search criteria, or quantitative synthesis. Abstract lacks specific details on study selection, risk of bias, or clinical efficacy.