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In this study, significantly lower serum vitamin D levels were observed in patients with alopecia areata compared to healthy controls, with an inverse correlation between vitamin D levels and disease severity or duration.

In this study, a Chinese Han family with hereditary vitamin D-resistant rickets was found to have a homozygous missense mutation in the VDR gene, and the affected individual uniquely responded well to treatment with oral calcium and low-dose calcitriol.

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.

This study reports that vitamin A deficiency can cause dermatologic issues like alopecia and orthokeratosis in Angus calves, and affected calves improved with vitamin A supplementation.

This study found that vitamin B6 injections over several weeks improved hair condition and reduced hair loss in some women with diffuse alopecia, while calcium pantothenate had no clear positive effect.

This review discusses the metabolism of vitamin D in the body, highlighting its conversion to biologically active forms and involvement in calcium regulation, without presenting new clinical findings.

In this study, alopecia areata and vitiligo patients had significantly lower serum BDNF and vitamin D levels, which were inversely associated with depression and quality of life, suggesting a potential combined role in the development of depression.

This study found that lower expression of VDR protein in breast cancer patients is associated with increased bone metastasis and poorer prognosis, making it a significant prognostic factor.

This study suggests that vitamin A may inhibit hair follicle stem cells during refractory telogen in a dose-dependent manner, based on retinyl ester levels and vitamin A metabolism protein localization in mice.

This study found that oral vitamin D3 therapy significantly improved hair regrowth in women with telogen effluvium in southern Punjab, Pakistan, especially among younger women not using sunscreen but consuming milk or milk protein.

This study found that patients with alopecia areata had significantly lower serum vitamin D levels and higher odds of vitamin D deficiency, but no significant difference in serum calcium levels, compared to controls.

This article recommends assessing serum ferritin and vitamin D levels in patients with diffuse hair loss before starting treatment, but it reports no new clinical results.

This study found that a novel R343H mutation in the vitamin D receptor gene impairs its transcription activity, contributing to hereditary vitamin D-resistant rickets and alopecia in the affected family.

This case series describes three siblings with hereditary vitamin D-resistant rickets, highlighting variations in their clinical presentations.

This case study describes a child with rickets and alopecia who responded to a small dose of 1-a-hydroxyvitamin D3, but her alopecia remained unchanged despite treatment.

This review discusses various metabolic and vitamin disorders affecting hair structure, including Menkes' syndrome, arginosuccinicaciduria, and recent findings on vitamin-related alopecia, but reports no new clinical results.

This study suggests that vitamin D treatment may be less effective in reducing thyroid autoimmunity for euthyroid men with early-onset androgenic alopecia compared to other men with autoimmune thyroiditis.

This case report found that vitamin D3 supplementation may improve hair growth and reduce hair-pulling behavior in patients with trichotillomania, as observed in two female patients over 3 to 4 months.

This study found that linoleic acid may help protect against acrylamide toxicity in female albino rats.

This study found that vitamin D deficiency was significantly more common in alopecia areata patients than in healthy controls and was inversely correlated with disease severity.

This case report describes a previously healthy 3-year-old girl who developed scurvy symptoms not directly linked to vitamin C dietary deficiency, highlighting the potential for misdiagnosis in similar cases.

This study found no significant correlation between vitamin D levels and disease severity in alopecia areata patients, highlighting the need for further research on vitamin D supplementation's effects.

This study described the clinical and genetic features of two Iranian siblings with hereditary vitamin D resistant rickets, identifying a specific VDR gene mutation contributing to their symptoms.

This case report highlights an atypical presentation of vitamin B12 deficiency in a 28-year-old man with reversible symptoms including localized hand hyperpigmentation and megaloblastic anemia, resolved after B12 supplementation.

In their mouse study, Oda et al. found that removing the MED1 gene in the skin led to hair loss and changes in epidermal cell differentiation, indicating MED1's significant role in these processes.

Hairless protein helps control hair growth by regulating vitamin D receptor activity.

This study found that calcitriol, tacalcitol, and calcipotriol ointments achieved complete clearance of scalp psoriasis in 45%, 35.2%, and 17.6% of patients, respectively, with minimal side effects.

This article reviews Vitamin D-dependent rickets Type II with a focus on alopecia as a potential diagnostic clue for this rare disorder, reporting no new clinical findings.

This article reviews the classification and characteristics of water soluble vitamins, focusing on their varying solubility and functions, and reports no new experimental findings.

The authors concluded that coagulopathy can result from vitamin E supplementation, even at marginally elevated levels, especially when combined with other drugs that increase bleeding risk.