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    Glossary Vitamin D Metabolism

    process converting vitamin D into its active, calcium-regulating form

    Vitamin D metabolism refers to the process by which the body converts vitamin D from sunlight or dietary sources into its active form, which is crucial for calcium absorption and bone health. This involves two main steps: first, vitamin D is converted to calcidiol in the liver, and then to calcitriol in the kidneys, which is the biologically active form that helps regulate calcium and phosphate levels in the blood.

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    1. Vitamin D metabolism and function in the skin Molecular and cellular endocrinology · 2011 · 185 citations
    2. Rickets with alopecia: An inborn error of vitaminD metabolism 1979 · 170 citations
    3. Vitamin D, Lipid Metabolism and Prostate Cancer Trepo - Institutional Repository of Tampere University · 2009 · 1 citations
    4. Dietary Vitamin D Supplementation Improves Hair Follicle Development and Affects Fatty Acid Metabolism in Rex Rabbits Food Science & Nutrition · 2025
    5. Chapter 28. Vitamin D: Production, Metabolism, Mechanism of Action, and Clinical Requirements 2008 · 20 citations
    6. Differences in male and female pattern hair loss based on androgens, estrogen, iron, vitamin D, lipid metabolism, and genetic regulation Journal of Cutaneous and Aesthetic Surgery · 2026
    7. Influence of Vitamin D on the Incidence of Metabolic Syndrome and Hormonal Balance in Patients with Polycystic Ovary Syndrome Nutrients · 2023 · 1 citations
    8. Metabolic and cellular analysis of alopecia in vitamin D receptor knockout mice Journal of Clinical Investigation · 2001 · 137 citations
    9. New aspects of vitamin D metabolism and action — addressing the skin as source and target Nature Reviews Endocrinology · 2020 · 378 citations
    10. Prevalence of vitamin D deficiency in Slovak women with polycystic ovary syndrome and its relation to metabolic and reproductive abnormalities Wiener Klinische Wochenschrift · 2015 · 16 citations
    11. Polymorphisms of Vitamin D Receptor and the Effect on Metabolic and Endocrine Abnormalities in Polycystic Ovary Syndrome: A Review Hormone and Metabolic Research · 2021 · 4 citations
    12. The Nuclear Vitamin D Receptor: Biological and Molecular Regulatory Properties Revealed Journal of bone and mineral research · 1998 · 1308 citations
    13. An Unusual Form of Vitamin D-Dependent Rickets in a Child: Alopecia and Marked End-Organ Hyposensitivity to Biologically Active Vitamin D The Journal of Clinical Endocrinology & Metabolism · 1980 · 82 citations
    14. Vitamin D resistance 2006 · 45 citations
    15. A novel LC-MS/MS analysis of vitamin D metabolites in mice serum and hair: impact of diet and light exposure Frontiers in Endocrinology · 2025 · 1 citations
    16. Tru9I Variant as a Novel Genetic Marker for Vitamin D Deficiency in Alopecia Areata Clinical Cosmetic and Investigational Dermatology · 2025
    17. Vitamin D and Its Biological Importance DergiPark (Istanbul University) · 2009
    18. Immunogenetic and metabolic risk factors in male androgenetic alopecia: the role of HLA-DRB1 alleles and vitamin D3 deficiency 2025
    19. The Role of the Vitamin D Receptor in the Epidermal Stem Cell Response to Wounding Receptors · 2024
    20. The association between serum ferritin and 25-hydroxyvitamin D and metabolic syndrome in Korean women: the Korea National Health and Nutrition Examination Survey 2010–2012 Journal of Clinical Biochemistry and Nutrition · 2017 · 7 citations
    21. Mutations in the vitamin D receptor and hereditary vitamin D-resistant rickets BoneKEy Reports · 2014 · 107 citations
    22. Vitamin D: More Than a “Bone-a-Fide” Hormone Molecular endocrinology · 2003 · 276 citations
    23. Protective cardiovascular and renal actions of vitamin D and estrogen Frontiers in bioscience · 2012 · 13 citations
    24. The importance of the vitamin d and its effects on the human organism 2025
    25. Evaluation of metabolic and hormonal parameters in women with PCOS living in Black Sea Region 2021 · 1 citations
    26. Tissue and metabolic regeneration in the light of stem cells, gut microbiota, microRNAs, and exosomes: a systematic review International Journal of Nutrology · 2025
    27. Bone Metabolism in Patients with Hidradenitis Suppurativa: A Case-control Study Acta dermato-venereologica · 2022 · 4 citations
    28. Hereditary 1,25-Dihydroxyvitamin D-Resistant Rickets KARGER eBooks · 2003 · 29 citations
    29. Impaired metabolic effects of metformin in men with early-onset androgenic alopecia Pharmacological Reports · 2021 · 4 citations
    30. Study the Relationship Between Vit.D and Some Biomarkers in Female Hair Loss Patients Compared to Normal Subjects 2025