50 citations
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October 1986 in “European journal of pediatrics” This case study reported that absence of alopecia does not reliably predict responsiveness to vitamin D treatment in Vitamin D-dependent rickets type II, as demonstrated by a patient with normal hair growth who showed extreme resistance.
36 citations
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February 2007 in “Journal of biological chemistry/The Journal of biological chemistry” This study found that vitamin D receptor activation in primary keratinocytes can occur independently of the 1,25-dihydroxyvitamin D3 ligand, likely through interaction with retinoid X receptors.
4 citations
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May 2021 in “Molecules” This study suggests that analyzing hair samples with a liquid chromatography-mass spectrometric assay may offer a reliable method to measure average quarterly vitamin D levels, potentially complementing blood tests.
1 citations
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January 2018 in “Turkiye Klinikleri Journal of Dermatology” This study found that patients with telogen effluvium had slightly lower vitamin D levels compared to healthy controls, but the difference was not statistically significant.
4 citations
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November 2022 in “Acta dermato-venereologica” This study found that patients with hidradenitis suppurativa had lower trabecular bone score and total hip bone mineral density compared to controls, with a high prevalence of vitamin D deficiency.