4 citations
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January 2020 in “Obstetrics and Gynecology Reports” This study found that obese Egyptian women with polycystic ovary syndrome had significantly lower serum 25-OH vitamin D levels compared to non-obese women with the condition.
March 2023 in “Pakistan Journal of Medical and Health Sciences” This study found that premenopausal women with female-pattern hair loss had significantly lower serum vitamin D levels compared to healthy controls, suggesting a potential role of vitamin D deficiency in this condition.
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.
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.
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.