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This review discusses the role of intrinsic skin signals, rather than serum signals, in regulating melanin synthesis and hair pigmentation, but reports no new experimental data.

This exploratory study found that cannabidiol (CBD) at higher concentrations may inhibit hair growth by promoting the onset of catagen in human hair follicles, while lower concentrations showed potential anti-inflammatory effects without promoting catagen.

Blocking adenosine A2B receptor may prevent or treat hearing loss.

This study found that the BMP antagonist noggin induces hair growth in postnatal skin by neutralizing BMP4's inhibitory activity, potentially mediated by changes in Shh expression.

This study found that gene-regulatory interactions among parental alleles contribute significantly to heterosis in early stages of maize development, with many differentially expressed genes showing non-additive expression in hybrids.

This study reveals that overexpression of Wnt3 in transgenic mouse skin leads to a short-hair phenotype and cyclical balding due to structural defects in hair shafts, highlighting a role for WNT signaling in hair growth regulation.

This study found dependencies between genetic variants and various phenotypes related to fetal and early childhood growth and neurological development in healthy infants, suggesting significant gene candidates for further investigation.

This study found that overexpressing PLC5 in Arabidopsis thaliana reduced root growth but improved drought tolerance, and suggests PIP2 is crucial for root hair growth.

This study found that chronic stress may inhibit hair follicle growth and melanogenesis in mice through modulation of the central HPA axis, with C57BL/6 mice appearing most sensitive to these effects.

This study found that activating Nrf2 in human hair follicles significantly reduced oxidative stress, lipid peroxidation, and protected against hair growth inhibition, suggesting a protective role for Nrf2 against redox insult in this context.

This study reported that supplementing rat hair follicle stem cells with chick embryo extract enhanced their migration and proliferation, possibly promoting differentiation toward Schwann cells.

This study found that coculturing human hair follicle keratinocyte stem cells with dermal papilla cells increased expression of the hair-specific keratin 6hf gene, which requires β-catenin/lef-1 signaling for hair differentiation.

This study found that human follicular papilla cells in the scalp produce leptin and express functional leptin receptors, suggesting leptin's significant role in hair biology.

In this study, Allium macrostemon Bunge extract was found to promote hair regrowth in a testosterone-induced androgenetic alopecia mouse model by activating Wnt/β-catenin signaling and boosting hair dermal papilla cell proliferation and growth factor expression.

This study found that lncRNA2919 negatively impacts hair follicle regeneration by decreasing follicle depth and density in a rabbit model, suggesting a regulatory role in the hair follicle cycle through DNA methylation.

This review summarizes existing evidence on how YAP and TAZ proteins are activated in epidermal keratinocytes and their role in coordinating with other signaling molecules to control transcription and influence epidermal cell fate, highlighting their importance beyond the Hippo pathway.

This study identified numerous genes that change expression across the anagen, catagen, and telogen stages of cashmere goat hair follicle development, highlighting key signaling pathways involved.

This study found that γδ T cells in the skin contribute to wound healing after vaccinia virus infection by promoting cytokine and growth factor induction, without affecting virus replication control.

This study found that ablation of Tet2/Tet3 genes in skin epithelial cells altered hair shape and length, leading to hair loss, by affecting chromatin accessibility and gene expression related to hair follicle regulation.

This study reported that EGFR activation leads to suppression of Stathmin, which may promote synchronized entry into catagen in hair follicles, highlighting potential mechanisms involving EGFR in hair cycle transitions.

This study found that specific gene expressions during different stages of hair follicle development in Merino sheep are linked to wool-related traits, and may also be relevant to human skin, metabolic, and immune traits.

This study suggests that the MAEG protein may facilitate epithelial–mesenchymal interactions during hair follicle development by binding to RGD-binding integrins like α8β1.

This study identified novel biomarkers through gene expression differences between keratinocytes and fibroblasts in newborn mice, which may aid in developing therapies for skin conditions.

This review discusses the role of extracellular vesicles as therapeutic agents for wound healing and highlights the need for further research into their clinical applications.

This study found that hair follicle stem cells in the hairpoor mouse, a model for Marie-Unna hypotrichosis, lose their quiescent state, leading to a disordered hair cycle and contributing to alopecia.

In this study, researchers found that significant transcriptomic changes occur in the skin of Dezhou donkey foals as they age from newborns to one year old, involving gene expression shifts that may enhance skin barrier function and hair follicle development, while reducing collagen synthesis.

In this study, iPSC-derived epidermal organoids demonstrated potential as a novel tool for regenerative medicine by producing high-performance extracellular vesicles that promote proliferation, migration, and angiogenesis in cell-free therapies for wound healing.

This article discusses the role of human scalp hair follicles in neurohormone production and their model potential for studying neuroendocrine signaling, reporting no experimental results.

This review highlights that the epidermis acts as an endocrine organ, synthesizing and responding to hormones such as corticosteroids and Vitamin D, impacting processes like hair growth and immune response, and participating in regulating endocrine balance.

In a study using a mouse model, Cerasus serrulata flower extracts significantly increased β-catenin and VEGF expression, promoting hair blackening and suggesting potential as a treatment for premature greying.