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This review examines the role of retinoic acid synthesis in hair follicles and sebaceous glands, focusing on its localization and function during normal and disease states, but reports no new results.

This review discusses adrenal gland disease in ferrets, exploring its signs, potential contributing factors, and current treatment options, but it reports no new clinical results.

This study describes three adult dogs with sebaceous gland dysplasia, reporting that two showed moderate to marked improvement in symptoms with treatment, though ongoing management is required as the condition cannot be cured.

Male hormones control a specific gene in hamster skin, with different hormones having varying effects.

This study found that hair follicles from dogs with recurrent flank alopecia regenerated and regrew hair when grafted onto mice, suggesting systemic rather than local factors may drive the condition.

In this study, saw palmetto supplements showed varied effects on cell growth in vitro and did not significantly inhibit growth in the hamster flank organ model despite a notable trend.

This study found that local androgen biosynthesis and metabolism in human sebaceous glands play a crucial role in sebum synthesis and secretion.

This study found that castration increased 5 alpha-reductase activity in the sebaceous glands of male hamsters, but administering testosterone propionate or 5 alpha-dihydrotestosterone inhibited this effect.

This study demonstrated that steroidal carbamates 7–10 altered mRNA expression related to lipid metabolism in hamster flank organs and inhibited 5α-reductase activity without binding to the progesterone receptor.

This report documents the second known case of Castleman's disease in the lacrimal gland, diagnosed in an 84-year-old woman through histological examination after excising a left upper lid mass.

This study found that several new pregnane derivatives, especially steroids 16 and 19, demonstrated higher antiandrogenic activity on male hamster models than the commonly used finasteride.

This study found that Bakhtiari sheep hair fibers and follicles became larger and more organized with age across all skin regions, with no significant differences by sex.

In this study, researchers found that disrupting the PRL gene in mice led to earlier hair molting, especially in females, suggesting that PRL inhibits murine hair cycle events.

This study found that disrupting the PRL gene in mice alters the timing of hair cycling events, causing earlier molts and changes in hair characteristics, particularly affecting female mice more significantly.

This review discusses the crucial role of sex hormones in maintaining and influencing skin health, suggesting ongoing research into hormonal treatments for skin conditions due to life stage changes.

This review explores androgen metabolism in the skin, highlighting enzyme localization and potential implications for treating androgen-dependent skin conditions, but it reports no new clinical results.

This study found that sebaceous-gland-derived glycerol significantly contributes to stratum corneum hydration in mice with sebaceous gland deficiencies.

In this research, authors found that skin-resident ILCs regulate sebaceous gland function and microbial balance, emphasizing an immune-epithelia system that supports host-microbe symbiosis.

This study reports the successful differentiation of mouse induced pluripotent stem cells into keratinocytes that can regenerate skin and its structures in an in vivo environment.

This study describes the enzymatic processes through which DHEA is converted to active sex steroids in human skin, highlighting an androgenic effect on sebaceous glands and estrogenic effects in the vagina.

This article reviews studies on thyroid influence on hair growth, noting varied results, including accelerated growth in some normal and underfed rats after thyroid administration, but reports no clinical results.

This study found that both ciclosporin A and topical therapy were effective in reducing alopecia and scaling in dogs with idiopathic sebaceous adenitis, with evidence suggesting improved outcomes when both treatments are combined.

The document concludes that treatments for female hair loss and excessive hair growth are temporary and not well-studied.

This review discusses the potential of follicular drug delivery systems to target the pilosebaceous unit and reports no new research findings.

This study found that growth in rats hindered by thyroid removal at birth can be normalized through the administration of thyroid preparations like thyroxine and artificial thyroprotein.

This study suggests that TGF-alpha may function in an autocrine or juxtacrine manner rather than promoting cell proliferation during hair growth cycles in ferrets and sheep.

This article reviews the discovery and various physiological effects of cyproterone acetate, reporting its established indications for several androgen-driven conditions but providing no new clinical data.

This review examines the role of hair follicles and sebaceous glands in percutaneous drug delivery but does not report new clinical results; it calls for further exploration of follicle-targeting therapies.

This review discusses the pathogenesis and challenges in treating primary cicatricial alopecia, highlighting the need to understand immune protection collapse in hair follicle stem cells; it reports no new clinical results.

This review discusses the role of hormones in acne vulgaris and highlights the need for further research on their mechanisms of action; it reports no new clinical results.