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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 review provides a comprehensive guide to serum-free human hair follicle organ culture methods, highlighting research opportunities, standardization efforts, and potential applications without reporting new empirical findings.

Hair color production is closely linked to the active growth phase of hair in mice and may also influence hair growth itself.

This review examines the neuroendocrine mechanisms underlying seasonal changes in mammals and highlights areas needing further research, reporting no new experimental results.

This review discusses the various triggers and diagnostic challenges in determining the cause of telogen effluvium-related hair loss, without providing new clinical results.

This paper argues that the cycling hair follicle serves as a valuable model for systems biology research, highlighting its potential for translational medicine.

This study found that light stimulation of intrinsically photosensitive retinal ganglion cells in the eyes can activate hair follicle stem cells through a neural circuit involving the sympathetic nervous system.

This study observed that in aged mouse skin, there was an increase in IL-17-expressing T helper cells, γδ T cells, and innate lymphoid cells, and blocking IL-17 signaling reduced skin inflammation and delayed age-related changes, suggesting it as a potential target to mitigate skin aging.

This review discusses the categorization of hair loss and increased hair density disorders related to systemic diseases and reports no clinical results, emphasizing the potential diagnostic value of history, physical examination, and histopathologic data.

This study introduces the concept of teloptosis, which influences hair shedding during the telogen phase and affects hair density, highlighting that early or delayed teloptosis has noticeable effects.

This study reveals that human hair follicles transition between active and dormant states stochastically, challenging the idea of a cyclical automaton controlling hair growth.

This review discusses the evolution and studies of injection lipolysis for fat reduction, highlighting the need for more research to ensure patient safety and treatment efficacy; it reports no new clinical results.

This review updates the protective effects and molecular mechanisms of melatonin against ultraviolet-induced damage in human skin, reporting no new clinical findings.

This study observed that in wild snowshoe hares, gene expression patterns during seasonal coat color change show a consistent lag between gene expression and visible coat color changes.

This review discusses the hormonal influences on hair cycling disorders in post-partum and postmenopausal women and notes the lack of evidence for effective targeted treatments.

This article discusses the potential benefits of platelet-rich plasma injections in ovarian tissue to improve reproductive outcomes in IVF for older individuals and proposes a mechanism to enhance embryo ploidy rescue, but reports no new clinical results.

This presentation reviews recent discoveries about signaling mechanisms in hair follicles and their potential influence on hair cycle control and melanogenesis, without presenting new experimental results.

This study found that telogen, a resting phase of the hair follicle cycle, is characterized by dynamic gene expression, including enhanced cholesterol metabolism and immune signaling, suggesting it is an active regulatory phase despite its quiescent appearance.

The researchers reported that hair follicle germinative epidermal cells can form complex structures when associating with papilla cells in culture, unlike other types of epidermal cells.

This review explores the potential genetic and epigenetic influences on hair whorl patterns and suggests that pattern formation may involve basic physical-chemical laws, although it reports no new experimental findings.

This study identified aging-related epigenetic and transcriptomic biomarkers and suggested that curcumin might target and inhibit the JUN gene, implicating potential therapeutic strategies against aging.

This paper reviews the role of the telomere-telomerase system in cellular ageing and cancer, discussing potential therapies but reporting no new experimental results.

Light and temperature affect the daily skin function rhythms in hairless rats, with temperature influencing water loss but not skin hydration.

In this study, bromocriptine's inhibition of prolactin promoted secondary follicle development during anagen in cashmere goats, likely via changes in specific gene expressions, despite not affecting fiber characteristics or primary follicle activity.

This chapter reviews common drug-related and systemic disorder-induced alopecias, focusing on their epidemiology, causes, symptoms, diagnosis, and treatment, but reports no new findings.

This report describes two cases of postoperative alopecia following oral surgery, highlighting potential risk factors such as head positioning and prolonged operative time, and suggests prevention strategies.

This review discusses recent advances in hair follicle research, highlighting therapeutic and cosmetic applications, but reports no new study results.

This study found no significant link between iron metabolism, including serum ferritin and hemoglobin levels, and telogen effluvium in women under 40 years old.

This case report documents a 59-year-old man in Taiwan who developed breast cancer while undergoing finasteride therapy for benign prostate hyperplasia, marking a rare side effect.

This study suggests a possible bidirectional relationship between sleep quality and hair loss, indicating that addressing sleep disturbances might improve hair loss management and patient well-being.