37 citations
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August 2015 in “The Journal of Steroid Biochemistry and Molecular Biology” This study found that in a mouse model with hereditary 1,25-dihydroxyvitamin D resistant rickets, a mutant vitamin D receptor lacking hormone-binding ability could restore normal hair cycling and affect parathyroid hormone regulation.
26 citations
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December 2006 in “Endocrinology” This study found that a topical cream containing PTH (7–34) significantly stimulated hair growth in hairless mice.
8 citations
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September 2014 in “Journal of X-Ray Science and Technology” This study found that hair analysis may be useful in early breast cancer detection by identifying distinct calcium and strontium concentration patterns before and during cancer development.
8 citations
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December 1981 in “Journal of The American Academy of Dermatology” This review addresses clinical findings in parathyroid disease and discusses the metabolism of calcium, phosphorus, vitamin D, and parathyroid hormone, reporting no new results.
April 2024 in “Research Square (Research Square)” This case report describes a 27-year-old male with autoimmune polyglandular syndrome type 1, characterized by symptoms including fever, dysarthria, dysphagia, oral candidiasis, nail dystrophy, alopecia, hypoparathyroidism, and dilated cardiomyopathy. The study highlights unique bilateral symmetrical brain calcifications and underscores the syndrome’s diverse manifestations.
November 2023 in “Biomolecules” In this study involving genetically modified rats, researchers observed that specific mutations in the vitamin D receptor affect calcium levels and bone formation, emphasizing the receptor's role in maintaining healthy bone density and its importance in regulating hair cycle and skin health.
November 2022 in “Journal of the Endocrine Society” In this case study, a woman with high 25(OH)D levels and persistent symptoms showed decreased parathormone after transdermal estrogen therapy, highlighting the importance of assessing both parathormone and estrogen levels in similar patients.
Hair can show daily calcium changes, linked to body calcium levels and influenced by hormones, and can help assess calcium metabolism issues.
January 2008 in “Annals of Nutrition and Metabolism” This study suggests that a specific region upstream of the TGF-β1 gene may play a key role in androgenetic alopecia by regulating gene expression in a cell-specific manner.
1 citations
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January 2024 in “Pediatric Endocrinology Diabetes and Metabolism” In this retrospective study of eight Saudi children with hereditary vitamin D resistant rickets, researchers observed that adjunctive cinacalcet appeared safe and showed initial promise in improving serum PTH levels, though further investigation is needed to confirm its efficacy.
1 citations
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November 2022 in “Diagnostics” This case report identifies a 32-year-old woman with undiagnosed PHPT-1a who exhibited complete pseudo-anodontia and persistent patchy alopecia areata, suggesting these may be new nonclassical features of a GNAS pathogenic variant.
March 2025 in “FEBS Journal” This study found that Epiprofin acts as a negative regulator of parathyroid hormone transcription, with potential implications for controlling PTH production in hyperparathyroidism.
10 citations
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January 2013 in “TURKISH JOURNAL OF MEDICAL SCIENCES” This retrospective study found that a majority of patients with low vitamin D levels also exhibited secondary hyperparathyroidism, highlighting the relationship between vitamin D deficiency and increased parathyroid hormone levels.
52 citations
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August 1993 in “Clinical endocrinology” This study found that intravenous high dose calcium infusions followed by high dose oral calcium effectively treated vitamin D dependent rickets type II, leading to complete biochemical and radiological healing and improved growth in two patients.
June 2016 in “American Journal of Cardiology” This study assessed the physical and mental health-related quality of life in patients undergoing either open surgical repair or endovascular aneurysm repair for abdominal aortic aneurysm using the SF-36 tool.
277 citations
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July 2002 in “Molecular Endocrinology” In this study, homozygous VDR null mutant mice exhibited nonfunctional vitamin D receptors, leading to growth abnormalities and revealing the limited physiological importance of vitamin D pathways outside the classical receptor.
24 citations
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March 2016 in “Journal of Investigative Dermatology” This study suggests that TIP39 and its receptor PTH2R, identified in human epidermis, may play a role in keratinocyte function and influence skin differentiation.
7 citations
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December 2015 in “Turkish Journal of Osteoporosis” In this study, researchers observed that vitamin D deficiency is common among patients with musculoskeletal pain admitted to the hospital, with particularly low levels found in females.
11 citations
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June 1979 in “British Journal of Dermatology” This study found that the dehydroepiandrosterone hydroxylating enzyme system in hair follicles is similar to the liver monooxygenase system, sharing characteristics such as inhibition by carbon monoxide and dependency on NADPH.
3 citations
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September 2017 in “The journal of investigative dermatology/Journal of investigative dermatology” This study found that low concentrations of CBD promoted hair follicle growth, while higher concentrations induced hair follicle regression and increased cell death in an experimental setting.
2 citations
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October 2022 in “Journal of cosmetic dermatology” This study observed that a CBD-rich topical cannabis extract may increase hair count in patients with androgenetic alopecia when applied daily, but the effect is concentration-dependent and requires further research to establish safety and efficacy.
15 citations
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July 2019 in “Journal of Investigative Dermatology” This exploratory study found that cannabidiol (CBD) at higher concentrations may inhibit hair growth by promoting the onset of catagen in human hair follicles, while lower concentrations showed potential anti-inflammatory effects without promoting catagen.
1 citations
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March 2023 in “Phytochemistry Reviews” This review discusses the potential of CBD for treating skin disorders, the challenges of its topical administration, and current strategies to improve its application, but reports no new clinical findings.
1 citations
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November 2023 in “International journal of molecular sciences” This article highlights that while cannabinoids show potential for treating various skin conditions, current evidence is largely preclinical, with a need for comprehensive clinical trials to confirm these promising effects.
January 2022 in “Clinical dermatology open access journal” This review summarizes research on cannabinoids like CBD and THCV, reporting that they improve hair growth in patients with androgenetic alopecia when applied topically, with CBD showing a dose-dependent effect.
April 2012 in “J. Willard Marriott Library” This study concluded that THC and THCA incorporate into hair by a mechanism independent of hair pigmentation, likely influenced by indirect deposition via sebum and skin.
1 citations
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November 2025 in “Journal of Cosmetic Dermatology” This source reports on ongoing clinical trials examining the therapeutic potential of topical CBD for skin conditions like acne, dermatitis, and psoriasis, and emphasizes that upcoming trial results will be crucial in evaluating its effectiveness.
30 citations
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March 2012 in “Journal of Analytical Toxicology” This study found that concentrations of THCCOOH in hair do not correlate well with self-reported cannabis use due to inaccuracies in the self-reported data, but it provides preliminary insights into usage patterns.
April 2023 in “Journal of Investigative Dermatology” In this study, a new emulsion containing CBD and ginger root extract significantly reduced symptoms of dry and eczema-prone skin, such as erythema and itching, in a clinical trial.
1 citations
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June 2021 in “Journal of pharmacopuncture” This study found that while CBD did not change gene expression including β-catenin in hair follicles, it restored decreased β-catenin expression in dermal papilla cells affected by testosterone or PMA, suggesting a potential modulating function on alopecia.