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This review discusses the role of diet in managing hair loss during menopause and reports no new clinical results; it highlights the importance of nutrients like sulfur amino acids, vitamins, and minerals.

This study describes a clinical investigation of telogen effluvium with iron deficiency anemia, comparing treatment with Fe2+ salts alone to Fe2+ salts plus topical Qilib, but reports no new results.

This review discusses the relationship between vitamin D and various skin diseases, highlighting the importance of evaluating vitamin D status and addressing deficiencies, and reports no new clinical results.

In this study, synthetic vitamin D3 analogs stimulated hair growth and formation of normal hair follicles in nude mice, unlike the natural form 1,25 dihydroxyvitamin D3.

This study found that low serum ferritin and vitamin D2 levels are associated with hair loss in females with chronic telogen effluvium and female pattern hair loss, suggesting potential benefits of screening and supplementation.

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

This study found that a specific mutation in the mouse RXRalpha gene significantly impacts immune responses and causes hair loss and skin cysts.

This study found that women with polycystic ovary syndrome had deficient or suboptimal serum vitamin D levels, but the effects of vitamin D on metabolic syndrome and hormonal balance remain unclear.

In this study, researchers found a significant relationship between mid-luteal progesterone levels and 25-hydroxy vitamin D levels in infertile patients, suggesting that about 20 ng/mL of vitamin D may be necessary to trigger ovulation or support progesterone secretion.

This study found no significant laboratory differences between Caucasian adults with non-cicatricial alopecia and healthy controls, but reported that affected individuals were significantly younger, suggesting that lifestyle and diet might contribute to early hair loss risk.

In this study, 80% of pediatric patients with alopecia areata treated with calcipotriol/betamethasone ointment showed hair regrowth over 12 weeks, suggesting it may be an effective option, though 20% had no improvement or worsening symptoms.

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 study found that ESR1 gene polymorphisms may be linked to hormonal imbalances in young women with hyperandrogenism, potentially affecting bone mineral density indirectly.

This study found that male patients with Androgenetic alopecia have higher serum leptin, lower vitamin D levels, and an altered adiponectin/leptin ratio, which may contribute to the disease's pathogenesis.

This review discusses the various roles of vitamin D in skin disorders, including established use in psoriasis and potential applications for atopic dermatitis and skin cancer prevention, but reports no new clinical results.

This study identified different non-genetic factors influencing androgenic alopecia in men with varying genetic risk, which may aid in developing more personalized treatments.

This review explores emerging therapies for hair regrowth, highlighting two strategies: hair follicle neogenesis and Wnt/B-catenin pathway modulation, which show promise for treating alopecia by potentially offering more effective options than existing treatments.

This study found that the immune-competent B6. Cg‐Tyr c−2J Hr hr /J congenic mouse line had a more pronounced delayed sunburn response and different proliferative skin reactions to UV exposure compared to SKH 1 mice.

In this study, a herbal preparation inhibited the conversion of testosterone to DHT and its binding on hair roots in vitro, suggesting potential as an alternative treatment for androgenic alopecia without the safety concerns associated with finasteride.

This review discusses the potential role of vitamin D supplementation as a therapeutic option for alopecia areata due to its immune-regulating effects and reports no new clinical results.

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 case report describes a 7-year-old boy with alopecia areata and reduced vitamin D receptor expression whose condition improved after using calcipotriol, a strong vitamin D analog.

This study used single-cell RNA sequencing to map the cellular composition of sheep hair follicles, revealing differentiation pathways and potential molecular mechanisms for wool curvature, which may inform sheep breeding.

This study found that isotretinoin therapy at 0.5 mg/kg per day does not significantly alter hair growth parameters in patients with moderate-severe acne vulgaris over a three-month period.

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.

This study found that patients with chronic kidney disease-associated pruritus had elevated serum levels of interleukin 31, suggesting a possible role of this cytokine in the condition.

The testes significantly contribute to vitamin D metabolism and may affect male reproductive health and conditions like hair loss.

This review suggests that decreased serum 25-hydroxyvitamin D levels may play a role in different types of non-scarring alopecia, but further studies are needed to explore vitamin D supplementation as a therapeutic option.

This study suggests that porphyra-334 may have antiaging properties, promoting collagen synthesis, improving periorbital wrinkles, and supporting hair follicle growth through gene regulation.

This study found that tianeptine may suppress the transition to catagen, promoting hair growth in a stress-induced alopecia areata mouse model.