February 2026 in “Zenodo (CERN European Organization for Nuclear Research)” This study reports that intralesional triamcinolone acetonide was more effective than Vitamin D supplementation in increasing hair density among alopecia areata patients, although Vitamin D also showed significant hair regrowth in patients with low serum vitamin D levels.
February 2026 in “Zenodo (CERN European Organization for Nuclear Research)” In this randomized control trial, the researchers found that intralesional triamcinolone acetonide led to higher hair density increases than Vitamin D supplementation in alopecia areata patients, although potential hair regrowth was also noted with Vitamin D in those with deficient levels.
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July 2018 in “PubMed” This paper presents a case where vitamin D replacement therapy was associated with hair regrowth in a patient with nonscarring alopecia linked solely to vitamin D deficiency and discusses managing vitamin D deficiency more broadly.
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January 2016 in “Endocrinology, diabetes & metabolism case reports” This report describes a 19-year-old male with 49,XXXXY syndrome receiving testosterone replacement therapy, which led to improvements in reproductive development, metabolism, and social interaction after a year of treatment.
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August 2020 in “Mayo Clinic proceedings” In this study, women with lichen planopilaris were found to have high rates of thyroid disease, depression, and anxiety, and about half experienced slowed or stabilized disease progression with treatment.