519 citations
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October 1998 in “Endocrinology” The study found that normalizing mineral ion levels in vitamin D receptor-ablated mice prevented hyperparathyroidism and bone disorders but did not address hair loss, indicating the VDR's role in hair growth.
January 2024 in “Journal of advanced research in Medical and Health science” This study observed that vitamin D deficiency in alopecia areata correlates inversely with disease severity and duration, but does not correlate with serum vitamin D levels.
119 citations
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October 1998 in “Endocrinology” This study found that normalizing mineral ion levels in vitamin D receptor-ablated mice prevented hyperparathyroidism, rickets, and osteomalacia, but alopecia persisted, indicating a separate role for the receptor in hair growth.
January 2025 in “International Journal of Molecular Sciences” This study showed that vitamin D receptor gene-deficient rats exhibit hair loss and skin abnormalities due to differences in gene and protein expression patterns, while ligand-independent VDR action is crucial for normal hair cycle maintenance and skin formation.
March 2024 in “Skin research and technology” This study found that CRP levels were elevated in alopecia areata patients, with an inverse linear association between serum vitamin D and CRP levels specifically noted in ophiasis AA.