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In this study, different types of catagen in the C57BL/6 mouse model exhibited varying effects on hair follicle melanocytes and melanin distribution, with spontaneous and dexamethasone-induced catagen showing pigment incontinence, while cyclophosphamide-induced catagen retained dendritic melanocytes but increased ectopic melanin.

This study suggests that increased Wnt signaling may cause melanocyte stem cell exhaustion, leading to hair graying in aged mice by promoting excessive differentiation of melanocytes.

This review examines current understanding of hair graying and suggests it may be caused by depletion of melanocyte stem cells due to genotoxic stress or dysfunctional melanocytes from oxidative stress.

In this review, the potential role of the hormone prolactin in skin biology and its implications for treating skin diseases and hair disorders are explored, with a focus on its stress-related impacts and possible immunomodulatory function in the context of COVID-19.

This review discusses the role of melanin synthesis in melanoma, focusing on how melanosomal pH might regulate melanin production, and reports no new results.

This study found that in overweight or obese women with PCOS and insulin resistance, those with lower baseline prolactin levels exhibited a greater decrease in insulin resistance after 6-8 months of metformin treatment, compared to those with higher prolactin levels.

UV light might cause excessive hair growth by increasing PGE2 in the skin.

This review discusses melanocytes' role in pigmentation, their clinical significance in conditions like vitiligo and hair graying, and highlights current research on hair follicle regeneration without reporting new clinical results.

This review discusses advancements in radiation therapy and chemotherapy making these cancer treatments more precise, convenient, and less toxic, but reports no new clinical results.

Minoxidil treats high blood pressure and side effects can be managed.

Minoxidil can cause severe skin reactions like Stevens-Johnson syndrome in rare cases.

In this study, the pharmacological action of dobutamine on rabbit retinae was found to be distinct from that of other dopamine analogs like apomorphine and N-methyl-dopamine.

This literature review highlights the effectiveness of topical vitamin D (e.g., calcipotriol, calcitriol) in treating vitiligo, emphasizing its role in melanogenesis and as an immunomodulator, either alone or combined with topical corticosteroids, offering minimal side effects.

Pramipexole can cause side effects like dizziness, sleepiness, hallucinations, and low blood pressure, and it's important to educate patients and keep doses low.

Skin-derived stem cells could help treat skin aging and pigmentation issues.

This chapter reviews surgical management techniques for leukotrichia in vitiligo and presents no new clinical findings; it highlights various grafting and epilation methods.

This review discusses common hair loss conditions and explores how advancements in hair follicle biology might lead to more effective treatments but reports no new results.

This review discusses recent advancements in hair cosmetic agents, including topical growth stimulants and anti-aging compounds, emphasizing molecular technology's role in understanding hair growth and aging; it does not report new results.

This study suggests that synthetic steroid analogues or 5α-reductase modulation could be potential therapeutic strategies for nervous system disorders, but further research on their effects is necessary.

This study found that treating a 3D hair dermal papilla model with rice bran extract and electromagnetic fields increased melanogenesis, suggesting potential for vitiligo and white hair therapies.

This case report documents the first successful management of accidental minoxidil toxicosis in a dog, resulting in full recovery after treatment with supportive care, including medications for blood pressure and potential toxicity mitigation.

This review explores nano-quercetin formulations to enhance the solubility, stability, and targeted delivery of quercetin, highlighting its potential efficacy in treating cancer, inflammation, metabolic diseases, and tissue regeneration, though challenges in biocompatibility, toxicity, and production remain, per this source.

This review highlights the promising role of stem cell therapy in treating resistant diseases, while also addressing the challenges in production and clinical application, emphasizing the need for standardized manufacturing and quality assurance to enhance efficacy and safety in clinical translational research.

This review examines glycopeptide hydrogels as biomimetic materials for tissue regeneration and other biomedical applications, describing their design, properties, and potential uses, and highlighting future advancements in replicating natural tissue environments for precision medicine.

This review identifies and discusses various endocrine-related causes of hypertension in children and adolescents, emphasizing the role of genetic predispositions and highlighting the need for systematic diagnostic guidelines and genetic sequencing referrals to improve diagnosis and treatment strategies.

This study found that neonatal administration of finasteride reduced sensitivity to alcohol's motor-stimulating effects and increased preference for novelty and initial alcohol consumption in rats, suggesting a role in alcohol vulnerability.

This study found that normal murine hair follicles are direct targets for melatonin bioregulation, expressing receptors that are regulated in a hair cycle-dependent manner, influencing keratinocyte apoptosis.

This review discusses the role of intrinsic skin signals, rather than serum signals, in regulating melanin synthesis and hair pigmentation, but reports no new experimental data.

This extensive review discusses the clinical manifestations, potential associations, and treatment approaches for lichen planus, but reports no new clinical results, highlighting gaps in evidence for therapeutic strategies.

This review explores finasteride's effects on neuroactive steroid levels and their potential influence on disorders like depression and alcohol withdrawal but reports no new clinical findings.