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Activating Wnt in skin cells controls the number of hair follicles by directing cell movement and fate.

In this study, the authors identified a role for hair follicles in regulating the formation and sympathetic innervation of arrector pili muscles, influencing hair follicle stem cell activity and potentially explaining hair loss associated with beta-blockers and androgenic alopecia.

This study found that in obese mice, local antimicrobial activity is reduced due to a loss of adipogenic stem cells and an increase in mature adipocytes, leading to higher susceptibility to skin infections.

This paper reviews the role of miRNAs in stem cell therapies and hair follicle growth, reporting no new findings but highlighting recent insights into fertility treatment and wound healing.

This study developed lipid-core nanocapsules for encapsulating menthol, improving its solubility and thermal stability, and demonstrated their safety and rapid skin absorption in ex vivo tests, highlighting potential applications for cosmeceuticals.

This review assessed experimental studies on herbs used for alopecia, identifying potential mechanisms involving hair cycle management and keratinocyte processes, but highlighted a need for improved evidence on quality control and toxicity of these herbal treatments.

This study found that transthyretin and megalin expression in human scalp hair follicles varies significantly with the hair growth cycle, peaking during anagen and diminishing in catagen and telogen phases.

This article discusses the association between chronic diffuse telogen hair loss in women and iron deficiency, supporting the view that iron's role is unclear and often overstated, but reports no new clinical results.

This chapter provides an overview of skin physiology, aging effects, and how environmental factors like UV damage impact skin health, without presenting new research findings.

This review concluded that near-infrared and red light photobiomodulation shows potential for certain ocular conditions like age-related macular degeneration and dry eye disease, but clinical evidence is still mixed and insufficient to establish it as a standard therapy.

This study presents a two-photon imaging method to visualize low-threshold mechanoreceptor axon terminals in live mouse forepaw skin, enabling repeated high-resolution imaging to study sensory circuits during development and adulthood.

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 mesenchymal–epithelial interactions in hair follicle development and cycling, highlighting recent insights without reporting new experimental results.

This review discusses the role of neurosteroids and androgens throughout different life stages, noting the potential disruptions caused by 5α-reductase inhibitors like finasteride, but no new clinical results are reported.

In this study, short-term treatment with lovastatin showed no effect on symptom severity, prostate volume, or PSA levels in men with prostatic enlargement from presumed benign prostatic hyperplasia.

Women's ovarian hormones and adrenal androgens change throughout life, affecting hair loss and health.

This review discusses hair restoration procedures for transgender patients undergoing gender transformation surgery and describes the authors' surgical approach but reports no clinical outcomes.

This chapter reviews classic regeneration models in planarian worms and amphibian limbs, focusing on the role of stem cells, and reports no new experimental results.

The book is a well-received, concise guide to facial plastic surgery, useful for students and professionals, but could use more references for further reading.

This book overview summarizes advances in integrative dermatology without presenting any new research findings.

This review introduces the morphological and molecular principles of hair follicle development but reports no new experimental results, focusing on recent insights and forming a working hypothesis.

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 estimates that young adults have about 230,000 tactile afferent fibers innervating their skin, with density varying by region and decreasing with age.

This review explores the potential of periodontal ligament stem cells for regenerative therapy in periodontium, despite challenges due to their rarity, and reports no clinical results.

The TGF-β family helps control how cells change and move, affecting skin, hair, and organ development.

This study demonstrates that bioengineered tooth germ autologously transplanted in a postnatal canine model can achieve functional tooth restoration, suggesting its potential for future clinical regenerative medicine.

This review examines the role of nuclear hormone receptors in skin wound repair processes and reports no new clinical results, highlighting the importance of their interaction with skin cells for effective healing.

This review discusses melanocyte development, emphasizing the plasticity of melanoblasts and the role of both intrinsic and extracellular signals in their differentiation and migration, with no new clinical results reported.

This review discusses the biology of hair follicle stem cells and highlights their potential for applications in regenerative medicine, drug, and gene delivery, but reports no new clinical results.

This article discusses Kennedy's disease, detailing its genetic cause, symptoms, and diagnostic criteria, but reports no new clinical findings and highlights a lack of causal therapy.