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This review discusses the evolving understanding of epithelial stem cells, noting how new models challenge old assumptions and suggesting multiple stem cell populations contribute differently to skin and hair follicle regeneration.

Mutations in the P2RY5 gene cause hereditary woolly hair.

This study found that moisture sorption properties of wool and hair fibers from various animals were similar, despite different structural features, with sorbed water being more ordered than liquid water.

This study found that finasteride-loaded liposomal formulations achieved significantly higher skin permeation and deposition compared to conventional gels and solutions, suggesting potential for effective topical application.

This study reported that AutoML effectively modeled itching and pain development, as well as app use, in patients with chronic eczema or psoriasis using a smartphone monitoring app, revealing that factors like BMI, age, and disease activity significantly influenced app engagement.

This review highlights that human hair is a valuable biological matrix for clinical and toxicological analyses, demonstrating its applicability in detecting various active substances from different pharmacological classes.

This review discusses the epidemiology, causes, diagnosis, and management of hirsutism in women, noting that effective treatment requires addressing the root cause as well as the hair growth.

In this study, niosomal formulations enhanced minoxidil skin accumulation compared to commercial and control solutions, suggesting a potential improvement for topical delivery in hair loss treatment.

This study found that glycolytic metabolism and lactate production are crucial for hair follicle stem cell activation, and manipulating these processes can stimulate the hair cycle.

This review discusses the potential mechanisms and evidence supporting low-level laser therapy for stimulating hair growth in men and women, while noting its safety and effectiveness but needing further study on specific parameters.

This study found that low fluence photoepilation with intense pulsed light targets the pigmented area of hair follicles, causing temporary hair loss by inducing a catagen-like state without severe follicle damage.

This study found that patients with alopecia areata experience significant impairments in health-related quality of life, notably affecting mental health, according to various quality of life assessment tools.

This review examines the epidemiology, pathophysiology, diagnosis, and management strategies for non-classic congenital hyperplasia due to 21-hydroxylase deficiency, and provides evidence-based recommendations for its treatment and genetic counseling.

This study found no evidence supporting the hypothesis that Aβ afferents sprout into the superficial laminas of the spinal cord after nerve injury in rats.

Foals with Rhodococcus equi infection often have other health problems that lower their chances of survival.

This study reported that 4D-printed, aliphatic polycarbonate-based scaffolds supported adipose tissue engineering by allowing adipocyte infiltration and neovascularization in vivo, indicating potential for effective adipose tissue repair.

This study suggests that finasteride's effect on promoting hair growth in men with androgenetic alopecia may be due to its inhibition of 5aR2 localized in hair follicles.

This study found that hair follicles contribute significantly to caffeine absorption shortly after topical application, with a faster absorption rate compared to the stratum corneum.

In this study, specific versican expression was observed in the anagen phase of human hair follicles, suggesting its importance in maintaining normal hair growth.

This study found that beard hair medulla cells express an unexpected range of keratins, showing variability and promiscuous behavior in keratin interactions distinct from other hair follicle cells.

Ethosomes improve finasteride delivery through skin for hair loss treatment.

This study observed that Japanese women experience diffuse central hair loss after age 40, characterized by reduced hair density and thicker hair ratio rather than vellus-like hairs.

This study found that Carthamus tinctorius exhibited the strongest 5α-reductase inhibitory and hair growth promoting activities among evaluated Thai herbs, suggesting potential for developing alternative hair loss treatments.

This study found that IMT-P8, a novel cell-penetrating peptide, effectively facilitated the dermal delivery of proteins and peptides in mouse skin and cell lines, suggesting potential for topical applications in cosmetics and skin diseases.

This study reports that men with androgenic alopecia experience altered neuroactive steroid levels associated with persistent depression symptoms even after stopping finasteride treatment.

In this study, finasteride dose-dependently inhibited stress-induced increases in allopregnanolone in rats, while enhancing 20alpha-reduction of progesterone without affecting 3alpha-dihydroprogesterone or 11-deoxycorticosterone levels.

This study reported new crystallographic structures and polymorphs of finasteride, including several solvates with distinct X-ray diffraction patterns and thermally characterized properties.

In this study, polymeric micelles containing retinoic acid were found to improve targeted delivery to hair follicle structures in human skin more efficiently than a marketed retinoic acid gel, suggesting potentially safer and more effective acne treatment.

This review discusses various substances that can impact male fertility and stresses that products should be confirmed 'sperm-safe' through rigorous testing, not assumptions; it reports no new study results.

This study demonstrates that canonical Wnt signaling is crucial for maintaining thymic epithelial microenvironments in postnatal thymus, possibly by affecting TEC progenitor cells.