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This study indicates that vitamin D3 administration may protect rat hair follicles from radiation-induced damage, as evidenced by maintained follicle numbers and increased Vitamin D receptor activity in treated skin.

This review discusses vitamin D and calcium signaling roles in epidermal stem cell processes essential for wound healing but reports no new experimental results, emphasizing their potential interdependent regulatory mechanisms.

This review discusses the role of the unliganded vitamin D receptor in hair follicle cycling and tumor formation in mice and reports no new experimental findings.

The researchers reported that the antipsoriatic compounds 1,25-dihydroxy-vitamin D3 and calcipotriol thinned the living cell compartment in organotypic ORS cultures by accelerating the differentiation pathway rather than affecting proliferation.

This study found that adequate vitamin D status is necessary for metformin to effectively reduce prolactin levels in men with iatrogenic hyperprolactinemia, while improvements in glycemic control were observed across all vitamin D groups.

This review highlights the crucial role of vitamin D signaling in epidermal stem cells during skin wound healing, emphasizing its distinct functions from calcium metabolism and its importance in genomic regulation mediated by the vitamin D receptor.

Vitamin B12 deficiency can cause skin darkening and increased blood vessels, but treatment can improve symptoms.

This review discusses the mechanisms by which isotretinoin and hormonal therapy treat acne through their effects on sebaceous glands, reporting no new clinical results.

This review discusses sex differences in immune response to respiratory viral infections, including SARS-CoV-2, and highlights that hormones like estrogen may provide females with better protection, but it reports no new results.

This paper reviews the diagnostic criteria, etiological factors, and treatment approaches for PCOS, highlighting the importance of considering metabolic issues such as insulin resistance and obesity, but reports no new findings.

This review discusses possible medication-induced hair loss and the need to exclude other confounding factors like stress and illness; it reports no new clinical findings and emphasizes careful assessment before attributing hair loss to medications.

This review discusses hormonal influences on hair growth and suggests that understanding hormone-gene interactions may improve treatment of hirsutism and alopecia, but reports no new clinical findings.

This analysis examines acne vulgaris using an integrative approach, highlighting its links with psychopathology, lifestyle, and diet, but reports no new results.

The conclusion is that effectively treating hair disorders is difficult due to the complex factors affecting hair growth and more research is needed to improve treatments.

Certain micronutrients may improve hair and nail health, but more research is needed to confirm their benefits.

This study found that expert consensus endorsed myo-inositol, alone or combined with folic acid and vitamin D₃, as an effective, well-tolerated option for managing acne and hirsutism in PCOS.

The researchers reported that cancer incidences are rising over time in developed countries, with potential carcinogenic drivers including advancing age, estrogen, decreasing vitamin D3, and Human Papillomavirus.

This study found that certain dietary changes, such as a low glycemic load diet for men and specific supplements for women, may improve acne, while chocolate, whey proteins, and dairy products are linked to worsened symptoms in both genders.

This abstract reviews the characteristics and health risks associated with polycystic ovary syndrome and does not report new findings, highlighting the syndrome's multifactorial nature.

This review examines the role of nuclear hormone receptors in skin wound repair processes and reports no new clinical results, highlighting the importance of their interaction with skin cells for effective healing.

This article reviews dietary recommendations for managing polycystic ovary syndrome and provides evidence that diet changes can improve the androgen profile in affected women, but it reports no new clinical results.

This study found that basal cell carcinomas show strong expression of vitamin D receptors at both mRNA and protein levels, suggesting a potential role in tumor growth regulation.

This review discusses nearly 70 patent applications for the treatment of androgenetic alopecia and other hair conditions, highlighting the mechanisms of action explored but reports no clinical results.

This review discusses the mechanisms, causes, and treatment options for telogen effluvium, noting acute cases often resolve by addressing causative factors, while chronic forms remain challenging to treat; recent causes include post-hair transplantation, vitamin D deficiency, and COVID-19.

This study found that patients with chronic telogen effluvium had significantly lower serum 25-OH vitamin D levels compared to healthy individuals, suggesting a potential link between vitamin D deficiency and this hair loss condition.

This case report documented a 20-year-old male with alopecia areata who experienced slight hair regrowth following treatment with cyclosporine and methylprednisolone, highlighting the importance of individualized treatment plans and consideration of medication side effects.

This review discusses the role of various hormones in diffuse hair loss and emphasizes the need for further research to clarify their complex interactions and potential therapeutic implications, but reports no new clinical results.

This article highlights that nurses may not be sufficiently aware of the potential for various drug groups, beyond cytotoxic drugs, to cause alopecia, and emphasizes the importance of early recognition of this side effect.

This review suggests that "polycystic ovarian syndrome" is a misleading name, as the disorder involves complex metabolic and reproductive issues beyond ovarian dysfunction and may stem from factors affecting the fetus in utero.