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In this study, researchers found that using a handheld digital microscope, hair diameter was a better determinant of perceived alopecia severity in androgenetic alopecia than hair density.

This clinical study explores the causes, progression, and treatment of hirsutism in females, noting its association with tumors in endocrine glands, but does not report new clinical results.

This study found that Shh and Dhh overexpression in mouse basal cells led to similar epidermal and limb phenotypes, suggesting Dhh functions similarly to Shh in skin, unlike Ihh.

The gene for Marie Unna hereditary hypotrichosis is located on chromosome 8p21, near the hairless gene.

This study found that Iranian patients with androgenetic alopecia had a higher terminal to vellus hair ratio compared to previous studies in Whites, suggesting potential onset of miniaturization.

This article discusses solitary hirsutism, emphasizing that treatment is mostly cosmetic unless contraception is also desired, and reports no new clinical results.

This review discusses the function and pathology of hair follicles and highlights the potential of using dogs as a model to study human hair and stem cell disorders, but presents no new experimental results.

This study reviews the development of a mouse model using pyroxylin to induce localized hair growth and shorten the hair cycle's resting phase, suggesting it as a platform for evaluating hair growth treatments, though further research is needed for human application.

This study found that women with PCOS reported higher overall psychological distress, but there was no significant link between their perceived hirsutism and this distress.

This study demonstrates that an AI-based grading framework using a novel area ratio metric improves the accuracy and consistency of male pattern hair loss classification, especially in advanced grades, compared to traditional methods.

This study revealed that basement membrane dynamics are crucial to hair follicle development, influencing progenitor cell behavior and cell division patterns in developing mouse hair follicles.

The gene for Marie Unna hereditary hypotrichosis is located on chromosome 8p21.

This study found that laser-based goniophotometry can effectively monitor changes in hair surface reflection related to color and cuticle cell tilt across different ethnic origins.

In this study, researchers developed an enhanced rodent model of trigeminal neuralgia, demonstrating that structural and functional changes in the anterior cingulate cortex are linked to chronic pain and emotional disturbances, and chemogenetic inhibition of specific neurons could alleviate symptoms.

This study reports that publicly available large language models are currently less accurate than human experts in diagnosing trichoscopic images, suggesting the need for further development and specialized training for these AI tools in trichology.

This article reviews current knowledge and research gaps on growth hormone in hair follicle biology, highlighting its complex role and suggesting further exploration to reveal nonclassical skin functions.

This study found that ARHGEF3 is crucial for hair follicle development in mice, as its absence leads to defects in placode compaction and impaired follicle downgrowth, highlighting its role in regulating cell shape rearrangements during embryogenesis.

This study found that Korean men with androgenetic alopecia have lower hair density and a higher proportion of single-hair units compared to normal adult males.

In this study, transient transfection of the HIF-1α gene into fibroblasts led to increased VEGF expression, which may enhance the growth and anagen phase of human hair follicles in vitro.

This review discusses recent advances in understanding the structural hierarchy of trichocyte keratins, including their heterodimeric structure and distinct conformations impacting hair growth, with no new experimental results reported.

This study reports the development of the first rodent model for androgenetic alopecia, demonstrating that overexpression of androgen receptors in mice delays hair regeneration and can be used to test new treatments.

This study found that the HairCheck® device, demonstrating high correlation between its Hair Mass Index and hair characteristics such as strand number and diameter, may be an effective tool for assessing hair mass changes in alopecia patients.

This study demonstrates that mice with ectopic expression of the human GLI-1 gene in their skin developed tumors resembling human basal cell carcinoma, suggesting that GLI-1 is central to tumor development without additional p53 or Ha ras mutations.

This study found that 70-MHz ultrasound can detect early signs of hidradenitis suppurativa linked to severity, including hair follicle abnormalities and keratin fragmentation, aiding in diagnosis and management.

This study suggests that idiopathic hirsutism may involve higher local androgen synthesis despite normal serum androgen levels, challenging its categorization as idiopathic.

This study highlights that human hair follicle dermal papilla cells and glypicans play crucial roles in regulating hair follicle stem cell differentiation.

This study found that human hair follicle dermal papilla cells cultivated as 3D spheroids in hexanoyl glycol chitosan-coated dishes formed hair-like structures, with minoxidil enhancing growth, and successfully integrated into artificial skin models, suggesting advancements for hair loss treatments and skin restoration therapies.

Hair follicles form hard α-keratin filaments in four steps, showing structural differences.

This review examines the interaction between hedgehog and Wnt/β-catenin signalling in hair follicles and basal cell carcinoma, linking Hh pathway inhibition to both tumor regression and alopecia.