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A 45-year-old woman with autoimmune diseases experienced patchy hair loss due to alopecia areata, which has no cure but can be treated, with varying success.

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.

This study found that Polygonum multiflorum extract may promote hair growth by inducing the anagen phase in the resting hair follicles of mice.

This study observed that Aconiti Ciliare Tuber extract may promote hair growth in mice by activating the Wnt/β-catenin signaling pathway.

This article discusses recent advancements in hair transplantation techniques that combine art and science for more natural results, but reports no new clinical findings.

This study found that ethanol extracts of Allium tuberosum Rottler ex Spreng significantly promoted hair growth in mice, possibly by increasing IGF-1 expression.

In this animal study, the researchers found that Schisandra nigra extract may promote hair growth by extending the anagen phase and reducing TGF-beta2 expression.

This review discusses the causes and treatments of hirsutism, emphasizing identifying potentially life-threatening pathologies, but it reports no new clinical results.

This study found that Rumex japonicus Houtt. root extract promoted hair growth by enhancing cell proliferation and preventing apoptosis in human dermal papilla cells and HaCaT cells, as well as in a mouse model.

This study evaluated a new anti-baldness product, IPSTiC patch hair, designed to treat androgenetic alopecia, and reported that it effectively inhibits NO radical and 5α-reductase activity while maintaining safety and stability, suggesting its potential for topical use.

This article reviews hair growth and loss in children and offers diagnostic approaches, reporting no new results.

The document reviews various hair and nail disorders, their causes, and treatments, emphasizing the need for proper diagnosis and the link between nail changes and systemic diseases.

This article reviews common causes of hair loss and hair excess and discusses their management in primary care settings, but it reports no new clinical results.

This review discusses the growing problem of alopecia and suggests that homeopathy, alongside lifestyle changes, may effectively manage different types of hair loss, though it reports no new clinical findings.

This case report suggests that melanin, as an energy generator, may offer a new perspective on studying and treating autoimmune disorders such as alopecia areata.

Up to 50% of women may experience significant hair loss by age 50, with various causes and treatments available.

This descriptive abstract provides information about a continuing medical education activity for physicians, designating 1.5 credits for participation, but reports no new research findings.

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.

In this study, researchers found that bulge cells in mouse hair follicles undergo transient proliferation during early anagen, indicating their role as follicular stem cells. However, another factor beyond dermal papilla proximity may be required to initiate a new anagen phase.

In this study, thymosin beta4 was found to stimulate hair growth in normal rats and mice by affecting key processes in the hair follicle cycle, such as stem cell migration and extracellular matrix remodeling.

This review discusses the causes, clinical presentation, and management of anagen effluvium, emphasizing its psychological impact and the need for empathy and practical support, but reports no new results.

This study found that the microRNA miR-22 is a key regulator of the hair cycle, influencing hair loss by promoting the transition from growth to rest phases and repressing keratinocyte differentiation.

This review discusses prolactin production and regulation in human skin and hair follicles, highlighting its potential broader implications but reports no new empirical results.

Testosterone and dihydrotestosterone affect hair growth, and new techniques like the folliculogram help study it, but fully understanding hair growth is still complex.

This study identified hair shaft progenitors in the matrix that regulate hair growth and pigmentation by creating a niche dependent on stem cell factor, implicating KROX20+ cells in these processes.

This article discusses various hair and nail abnormalities linked to paraneoplastic conditions and cancer treatments, emphasizing their potential role in diagnosing and managing internal malignancies and reports no new clinical findings.

This study found that high levels of parathyroid hormone-related protein expression can result in the production of shorter hair shafts, likely through effects on angiogenesis.

Eating isoflavone can help mice grow hair by increasing a growth factor.

This study identified 12 new genes associated with the hair follicle and various stages of the hair cycle in mice, which could lead to novel targets for hair growth or depilation therapies.

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.