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This article reviews the structure and function of the skin and its importance for understanding skin diseases, without providing new clinical results.

This review discusses the various stem cell populations associated with hair follicles and their potential in regenerative medicine, highlighting differences between murine and human hair follicles but reports no new clinical results.

This study suggests that p63 is consistently expressed in the basal cells of the skin and may influence differentiation and the development of common skin carcinomas.

This study found that hair follicle stem cells initially contribute to wound re-epithelialization, but long-lasting epidermal cells are primarily derived from a stem cell population in the isthmus portion of hair follicles.

New research suggests that skin cell renewal may not require a special type of cell previously thought to be essential.

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 study found that Smad7 perturbs hair follicle development while promoting sebaceous gland formation by antagonizing Wnt/β-catenin signaling in transgenic mice.

This paper reviews the role of androgens in human skin function and the challenges in developing treatments for androgen-associated disorders, reporting no new experimental results.

This study identifies specific localization patterns of androgen, estrogen, and progesterone receptors in human skin, which could be crucial for understanding their roles in skin biology and pathology.

This study found that cathepsin L deficiency in mice led to significant abnormalities in hair follicle development and cycling, including disrupted hair shaft outgrowth and premature hair growth phase entry.

This review discusses the diverse roles and characteristics of epidermal and dermal stem cells in skin regeneration and aging, highlighting their potential applications in regenerative medicine and reports no new clinical results.

This study found that absence of the vitamin D receptor in keratinocytes impairs canonical Wnt signaling and leads to alopecia due to defects in keratinocyte stem cells.

This review discusses the histopathology of male-pattern baldness and highlights ongoing disputes over several aspects, including sebaceous gland size and follicle loss, reporting no new clinical findings.

This review covers follicle-targeting drug delivery systems, exploring their potential for improving localized and systemic therapies, and highlights the need for further research into follicle penetration mechanisms.

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 skin changes during pregnancy, highlighting both pregnancy-specific and common physiologic changes, but reports no new clinical findings.

This review explores the impact of vitamin D deficiency on the skin from a dermatological perspective, but reports no new clinical results.

This study found that Rac1 is crucial for maintaining the integrity of hair follicle structure but is not needed for skin epidermis maintenance in mice.

This review discusses how Western diet may contribute to acne vulgaris through insulin signaling and metabolomic changes, promoting a dietary approach for management, but reports no new experimental results.

This review summarizes recent research on the skin microbiome's role in acne development and how antibiotic treatments affect skin microbes, but it reports no new clinical results.

This study found that disrupting Adam10 in the epidermis led to severe skin and multi-organ abnormalities, implicating Adam10 as crucial for proper Notch signaling and skin maintenance.

This review discusses the modern approach of skin tissue engineering for chronic wound treatment, focusing on bioengineered artificial skin substitutes and assessing innovations in biomaterials and cell use; it reports no new clinical results.

Different types of stem cells and their environments are key to skin repair and maintenance.

This study found that melatonin implants caused male weasels to molt, develop a new white winter coat, and become reproductively inactive, suggesting melatonin affects their neuroendocrine system.

This study found that modulating BMP activity in transgenic mice affects the development and characteristics of several ectodermal organs, such as skin, hair, and claws, highlighting a stage-dependent influence on organogenesis.

Fgfr2b helps maintain healthy skin and prevent cancer.

EGF receptors are crucial for skin cell growth and decrease with age.

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.

This study found trilostane to be an effective and generally safe treatment for improving symptoms in dogs with pituitary-dependent hyperadrenocorticism.

In this study, ethosomes were found to improve the skin penetration of a model lipophilic drug more effectively than liposomes or hydroethanolic solutions, suggesting a unique mechanism involving the breakdown of vesicles in the skin.