December 2017 in “Elsevier eBooks” Vitamin D receptor is crucial for hair growth, not vitamin D itself.
50 citations
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October 2011 in “Archives of Biochemistry and Biophysics” This study found that while calcium can substitute for the Vitamin D receptor in maintaining epidermal keratinocyte differentiation, it cannot compensate for hair follicle dysfunction caused by the absence of the receptor.
15 citations
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June 2011 in “Journal of Investigative Dermatology” This study found that overexpressing the 14-3-3σ protein in transgenic mice reduced keratinocyte proliferation and migration, leading to thinner epidermis and fewer hair follicles due to IGF-1 pathway inhibition.
January 2011 in “Elsevier eBooks” Vitamin D and its receptor are crucial for skin and hair health.
29 citations
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February 2010 in “The Journal of Steroid Biochemistry and Molecular Biology” In this study, researchers observed that the absence of a functional vitamin D receptor in mice leads to impaired hair follicle regeneration due to defects in keratinocyte stem cells, resulting in alopecia.
95 citations
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July 2006 in “British Journal of Dermatology” This study observed that vitamin D receptor expression in certain hair follicle cells varies throughout the murine hair cycle, suggesting a potential role for 1,25-dihydroxyvitamin D3 in hair follicle biology.
115 citations
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December 2001 in “Endocrinology” This study found that restoring vitamin D receptor expression specifically in the keratinocytes of VDR null mice prevented alopecia and enhanced hair follicle response during anagen initiation.
30 citations
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June 1993 in “The Journal of Cell Biology” This study found that transgenic mice expressing a mutant E1a oncoprotein in their skin had disturbed hair follicle maturation but did not show increased tumor development or proliferation.