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This study found that human hair shafts are a rich and stable source of RNA, which can be extracted for analysis and used in personalized medicine and diagnostic applications.

This study found that concentrations of haloperidol and its metabolite in human scalp hair significantly correlated with the daily dose and plasma trough levels in patients taking haloperidol.

This report highlights that the ISHRS website achieved 1,000,000 active users in 2025, signaling its emergence as a leading global resource for hair restoration information.

This abstract provides information about the American Board of Hair Restoration Surgery as the only internationally accepted certifying body for hair restoration surgeons, but it reports no new research results.

This study found that HairTime, a novel non-invasive assay using hair samples, accurately estimates chronotype and reveals its plasticity influenced by work schedules and lifestyle factors.

This study observed that innervation of the mystacial pad in rats by fine-caliber axons is more extensive and complex than previously described, with distinct differences in labeling patterns depending on the tracer and survival time.

A new mutation in the TRPS1 gene caused Trichorhinophalangeal syndrome in a 17-year-old, highlighting the need for genetic testing.

This study in hairless rats suggests that the deletion of specific hair keratin genes contributes to hypotrichosis and highlights the strain's potential as a model for hair follicle research.

This article discusses the American Board of Hair Restoration Surgery certification process and its role in recognizing physicians' knowledge and skills, but it reports no new results.

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

This study created a humanized mouse model of hereditary vitamin D-resistant rickets that lacks alopecia, indicating the mutant receptor's potential to explore the syndrome's characteristics beyond vitamin D binding.

This study identified a homozygous missense mutation in the KRTHB5 gene linked to pure hair–nail ectodermal dysplasias in a large consanguineous Pakistani family, providing new insights into the condition's molecular pathogenesis.

This study found that proretinal nanoparticles, applied topically, are safe and effective for penetration into hair follicles, enhancing retinoid biological activity in the skin while reducing irritation compared to conventional retinal formulations.

This study found that nafarelin treatment significantly reduced androgen levels and improved hirsutism symptoms in women, suggesting it may be useful for managing this condition.

According to this study, human scalp hair follicles containing pluripotent stem cells demonstrated the ability to differentiate into cardiac muscle cells and other cell types, suggesting potential applications in heart and nerve regeneration.

This study suggests that basonuclin may act as a tissue-specific transcription factor for ribosomal RNA genes by interacting with the promoter region necessary for high transcription levels in human keratinocytes.

This review discusses the use of hair cortisol concentration as a marker for chronic stress and long-term cortisol secretion in animals, highlighting its benefits and the need for standardized sampling protocols.

In this case report, researchers described a female child with total alopecia due to a mutation in the SNRPE gene, emphasizing the need for updated genetic testing as knowledge advances to avoid diagnostic delays in hereditary nonsyndromic hypotrichosis.

This study found that recombinant human ADM2 treatment inhibited cell proliferation and induced apoptosis in human hair follicles, contrasting with the previously documented pro-proliferative and anti-apoptotic functions of ADM2.

This study identified a novel genetic mutation, c.429delC in the hairless gene, associated with atrichia with papular lesions in two Pakistani families.

Reduced AhR signaling in HS tunnels leads to persistent inflammation and microbial imbalance.

This review discusses the expression of circadian genes in hair follicles and their potential for monitoring circadian-rhythm-related conditions, reporting no clinical results; the authors suggest combining hair sampling with other assessments for better insight.

This study discovered that a specific G to C mutation in the ornithine aminotransferase gene is linked to the retarded hair growth phenotype in mice and may serve as a model for human gyrate atrophy.

This report on a 37-year-old patient found that trichorhinophalangeal syndrome type I is associated with hair abnormalities, including fine and brittle hair with altered biomechanical properties, but no treatment exists for the hair defects.

This study used phase contrast hard x-ray microscopy to capture detailed images of healthy human hair, revealing distinct structures such as the medulla, cortex, and cuticular layer.

Mutations in the hHb6 gene cause the hair disorder monilethrix.

This study found that hHbl gene expression is localized in the cortical cells of the human hair shaft and is notably high in pilomatricoma cells transitioning to hair shaft keratinocytes.

This abstract reviews hereditary vitamin D-resistant rickets, a rare genetic condition causing severe early childhood rickets, and reports no new results; effective treatment typically requires high doses of calcium to address hypocalcemia and secondary hyperparathyroidism.