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This article discusses the minimal research on hair growth physiology and highlights Dr. Masumi Inaba's contributions to understanding androgenetic alopecia, but reports no new experimental results.

Premature graying of hair is mainly caused by genetics, stress, and environment, with potential treatments being explored.

This study found that an enzymatic digestion method for isolating hair follicle stem cells from scalp specimens yielded 5.3 times more epithelial cells than explant cultures, while supporting comparable cell functionality, offering a promising technique for tissue engineering and regenerative medicine.

This abstract discusses the challenges of diagnosing and managing PCOS, highlighting that individualized management, lifestyle modifications, and medical treatments such as contraceptives and metformin are recommended to address hormonal imbalances and co-morbidities.

This article discusses the anatomical and biological aspects of hair follicle stem cells in the bulge region but reports no new research findings.

This study observed that both excessive and deficient selenium levels in a C57BL/6 mouse model were associated with hair loss and changes in hair follicles, likely due to alterations in the hair follicle cycle and increased apoptosis.

This study found that a conditioned medium from human umbilical cord mesenchymal stem cells cultured in a gelatin sponge significantly enhanced hair growth and promoted skin angiogenesis in a mouse model, more effectively than a monolayer culture.

This review discusses the impact of drugs on human hair growth, highlighting its psychological importance and noting that most contributions are from clinical perspectives, with some input from biochemists and physiologists.

This study suggests that basonuclin in keratinocytes is likely a regulatory molecule linked to maintaining proliferative capacity and preventing terminal differentiation rather than a cell cycle marker.

In this observational study, 95% of androgenetic alopecia patients treated with neonatal mesenchymal stem cells through mesotherapy showed mild to moderate improvement in hair growth and reduction in hair loss.

This review discusses the role of the EGF receptor/ligand system in skin homeostasis and its implications for keratinocyte stem cells and reports no new clinical results.

This study found that in human hair bulbs, telomerase is present mainly in the nuclei of cells undergoing proliferation, particularly in the matrix epithelium during the anagen phase, and sparsely in the outer root sheath during late catagen and telogen phases.

This article reviews the potential of adipose-derived and Wharton’s jelly stem cells in alopecia treatment but presents no new clinical findings, highlighting their potential benefits and limitations in regenerative medicine.

This review explores regenerative treatment options for non-scarring alopecia, with a focus on the potential of mesenchymal stem cells for hair regrowth, but it reports no new clinical results.

This review discusses the potential of mesenchymal stem cell therapies for treating various skin diseases, including vitiligo, alopecia, and epidermolysis bullosa, but reports no new results.

This study found that iron retention in macrophages impairs hair follicle growth and delays wound healing in mice, highlighting the importance of macrophage iron release for skin health.

This study found that peach kernel oil extracted via supercritical fluid extraction had higher quality and antioxidant properties than oil obtained by other methods, effectively protecting human hair follicle keratinocytes from oxidative damage.

This narrative review examines the interactions between skin stem cells and their niches, finding new insights from advancements in genetic and imaging tools but reporting no new experimental results.

This study identified a novel MTS24-positive murine keratinocyte population with increased colony-forming ability, suggesting these cells may serve as a new reservoir of proliferative progenitor or stem cells in hair follicles.

This study demonstrates that hair follicle bulge stem cells can transition into other stem cell compartments, indicating their role in maintaining both hair follicles and sebaceous glands.

Repetin is a protein involved in skin and hair development, binding calcium and compensating for other proteins when needed.

This review discusses recent advancements in the study and application of epidermal stem cells for wound healing and tissue engineering, without presenting new experimental findings.

This study found that mice lacking alkaline ceramidase 1 with elevated skin ceramide levels showed disrupted skin homeostasis, including altered hair follicle structures, increased water loss, and a hypermetabolism phenotype.

This study found that canine bulge-derived keratinocytes are highly proliferative and can reconstitute pilosebaceous structures, indicating their potential utility in studying human stem cell biology and hair disorders.

This study suggests that the structure and function of the inner root sheath in mammalian hair may have evolved from simpler forms seen in monotremes, aiding in hair exit without damaging the epidermis.

This study suggests that human mesenchymal stem cells have the potential to differentiate into dermal papilla cells both in vitro and in vivo.

In this study, using stirred-suspension bioreactors to expand dermal stem cells resulted in larger numbers, but had reduced efficiency in forming hair follicle structures compared to static culture conditions.