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This study found that school-related stress increases hair cortisol in girls and alters hair testosterone and cortisol levels in boys, indicating gender-specific hormonal responses to environmental changes.

This study used developing mouse hair follicles to explore early epithelial bud formation, finding that the Rho GTPase regulator ARHGEF3 plays a crucial role in regulating cell fate and cadherin patterning, with knockouts showing disrupted morphology and increased straight hair follicle growth.

This study established an efficient short-term culture system for human hair follicle stem cells using human fibronectin and ROCK inhibitor Y-27632, enhancing cell proliferation and stemness for potential applications in hair follicle tissue engineering.

This study found that Plerixafor, a CXCR4 antagonist, promotes melanogenesis in melanocytes by increasing MITF and tyrosinase expression and enhancing melanocyte migration, and it effectively restores pigmentation in a mouse depigmentation model without toxicity, highlighting its potential for treating pigmentary disorders.

This study found that Par3 plays a crucial role in maintaining epidermal homeostasis by regulating Rho/actomyosin contractility and ensuring mitotic accuracy, with potential implications for other self-renewing epithelia.

The TGF-β family helps control how cells change and move, affecting skin, hair, and organ development.

This study found that dysregulation of the folliculin-p0071 interaction may lead to changes in cell adhesion and signaling, contributing to conditions like emphysema and renal cell carcinoma.

The document concludes that skin and nail changes can indicate various underlying health conditions.

In this retrospective study of 1,415 male hair transplant patients, punch technology improvements for the FUE method were associated with an increased number of total grafts and multi-hair follicular units over time, making FUE a preferred choice for hair transplantation.

This study found that ethanolic asiasari radix extract may induce apoptosis in G361 melanoma cells through ROS-dependent regulation of p53, suggesting potential as a medicinal option for melanoma.

In this study, researchers observed that DHEA-induced PCOS rats experienced significant changes in gut microbiota and metabolic profiles, particularly affecting steroid and lipid metabolism, suggesting the gut-ovary axis may play a role in the pathogenesis of PCOS.

This study found that TRM21 acts as a positive regulator of flavonoid biosynthesis at the translational level in Arabidopsis, leading to changes in root hair growth and a decrease in flavonoid content when TRM21 is mutated.

In this study, mice exposed to prolonged space conditions demonstrated skin atrophy, altered hair follicle cycles, and significant changes in the gene expression associated with skin muscle health.

This study found that self-noncoding dsRNA activates TLR3 to stimulate intrinsic retinoic acid synthesis, promoting new hair follicle formation in wounded mice and showing similar gene expression changes in humans treated with rejuvenation lasers.

This study found that COVID-19 infection disrupts spermatogenesis, alters testicular cell populations, and may impact male fertility by causing long-term changes in testicular function and reduced sperm quality, as observed even in patients who have recovered from the acute phase of the infection.

This study found that normal murine hair follicles are direct targets for melatonin bioregulation, expressing receptors that are regulated in a hair cycle-dependent manner, influencing keratinocyte apoptosis.

This review explores androgen metabolism in the skin, highlighting enzyme localization and potential implications for treating androgen-dependent skin conditions, but it reports no new clinical results.

This study found that the DKK3-CKAP4 signaling axis is involved in fibroimmune remodeling in androgenetic alopecia and that targeting this pathway may restore a regenerative hair follicle environment, offering a potential therapeutic strategy to counteract hair follicle miniaturization.

This review discusses the roles of metabolism, reactive oxygen species, intracellular pH, and cell morphology in influencing cell fate decisions during stem cell differentiation but reports no new experimental results.

This study developed a validated murine model of hypertrophic scar contraction, demonstrating similarities to human skin and observing graft contraction and tissue characteristics over time.

This study developed and initially validated the Scale of Alopecia Areata Distress (SAAD), a 41-item tool designed to measure psychosocial distress among US adults with alopecia areata.

This review synthesizes both traditional and emerging molecular mechanisms of tissue remodeling across different organs, aiming to establish a theoretical basis for precision interventions in pathological conditions, according to the authors.

This study suggests that mammalian hair follicles may serve as a viable and non-invasive system for diagnosing traumatic brain injury, reflecting similar molecular responses observed in other tissues.

This review discusses circadian clock regulation in stem cells and its role in processes like neurogenesis, but reports no new results; the authors emphasize its significance in stem cell function across various tissues.

This study observed that testosterone concentrations in hair segments show some stability over time, but are influenced by factors like sebum integration, hair washing frequency, and individual hair growth rates.

The document concludes that a new biosensor can efficiently detect prostate cancer cells and that standardized referrals help find significant cancers effectively.

Blood tests for tumor cells could improve prostate cancer diagnosis and treatment; hair loss severity linked to a gene affecting prostate conditions.

This study found that inhibitory neurosteroids synthesized within glial cells can reduce seizure frequency in epileptic animals by enhancing inhibitory transmission via γ-aminobutyric acid receptors.

This study found that by using an automated system to analyze skin histology, 108 structural features were significantly affected by age, and it identified four new aging biomarkers and notable sex-based differences in skin aging.

In this study, Epimedii Folium extract was found to enhance melanin production and promote pigmentation through mechanisms involving the MAPK/ERK1/2 pathway in both in vitro and in vivo models.