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This review discusses the roles of the hairless (HR) protein as a corepressor, particularly its impact on RORα-mediated transcriptional repression, and reports no new experimental findings.

This study found that infrared thermography might be a useful non-invasive tool to help diagnose frontal fibrosing alopecia by identifying active phases of the disease.

This study found that in yak hair follicles, TGF-β2 significantly contributes to the transition from growth to regression phases via inducing apoptosis, whereas HSP70 appears to inhibit follicle regression by protecting epithelial cells from apoptosis.

In a depilated mouse model, this study found that blocking CXCL4 activity with an anti-CXCL4 monoclonal antibody promoted hair growth by inducing an earlier anagen phase, delaying hair follicle regression, and altering expression of genes and proteins related to hair growth and cell proliferation.

This study suggests that diffuse alopecia areata initially involves an intense inflammatory attack during the anagen phase, progressing through different hair cycle stages with specific shedding patterns.

The study found that prolactin expressed in human scalp hair follicles acts as an autocrine modulator, inhibiting hair growth and promoting hair follicle regression, which may contribute to hair loss in hyper-prolactinemia patients.

This study identified the dermal sheath as a driver of hair follicle regression through muscle contraction, essential for reuniting niches and stem cells to regenerate tissue structure during homeostasis.

This study suggests that activating retinoic acid signalling can inhibit Wnt signalling and induce regression in certain skin tumors, providing potential therapeutic strategies for tumor regression.

In this study, researchers observed that Vdr-knockout mice experience hair cycle arrest during the catagen stage, leading to alopecia, with persistent epithelial strands forming in the hair follicles, indicating Vitamin D receptor's role in regulating hair follicle regression and regeneration.

This study found that the dermal sheath smooth muscle regulates hair follicle progenitor cell death during hair regression through mechanical signaling of the TGF-β pathway.

In this study, researchers used two dermal papilla spheroid models to investigate hair cycle regression mechanisms and found that the vascular system enhances tissue physiology and gene modulation, while Retinol-based treatments can partially recover tissue degeneration observed over an extended culture period.

This study found that transgenic mice expressing HPV E6/E7 in the outer root sheath experience continuous hair follicle cycling due to delayed catagen entrance and insensitivity to telogen resting signals.

This study found that peripheral clock genes, particularly BMAL1 and Period1, modulate human hair follicle cycling, suggesting their potential as therapeutic targets for affecting hair growth.

This study found that continuous expression of epidermal growth factor in transgenic mice prevented hair follicles from entering the catagen phase, implicating EGF as a crucial regulator in hair cycle progression.

This study demonstrated that β-catenin signaling in CD133+ dermal papilla cells enhances postnatal hair growth by accelerating the proliferation and differentiation of keratinocytes in the murine hair cycle.

This study found that the humanin analogue HNG significantly promoted hair growth in vitro and in vivo by prolonging the anagen phase and inhibiting hair follicle cell apoptosis in mice.

This study observed that downregulation of laminin-511 plays an important role in hair regression during the catagen stage in mice.

This article discusses the clinical characteristics and treatment considerations for different types of alopecia, reporting no new research findings.

This study found that stress hormones, particularly CRF, can inhibit hair growth and induce hair loss by affecting human dermal papilla cells and hair follicles, suggesting a functional HPA axis in these cells.

This study found that cyclosporine A's enhancement of hair growth in mice is partly due to its ability to block the nuclear translocation of apoptosis-inducing factor, slowing the hair follicle transition to the catagen phase.

This study observed that the OCIAD2 and DCN genes in Liaoning cashmere goats have opposite effects on hair growth by interacting with the TGF-β signaling pathway, influencing follicle morphogenesis and periodic changes.

This review discusses recent advances in understanding hair growth mechanisms and reviews current and emerging therapies, but it presents no new clinical results.

This study suggests that nerve growth factor may support hair follicle growth in Liaoning cashmere goats through pathways involving its receptor, TrkA, particularly during the anagen phase.

In this study, Nec-1s was found to promote hair growth and may target necroptosis and the Wnt/β-catenin pathway for potential treatment of hair loss.

This review describes human hair follicle behavior and suggests that glycans may play a key role in controlling hair follicle growth, but reports no new clinical results.

This review describes the dual influences on hair follicle homeostasis, proposing it as a "Yin Yang" paradigm, and highlights glycans as a potential key in hair follicle growth control; no new clinical results are reported.

This review found that olive oil phenols may have anti-cancer properties in animal models and some human studies, but further research is needed to confirm these effects in humans.

This review discusses the need for more research on how the chronobiological control systems regulate hair follicle cycling and reports no new results.

This study found that l-carnitine stimulated hair growth in vitro by promoting proliferation and reducing apoptosis in human scalp hair follicles, suggesting potential as a treatment for hair loss.

This systematic review identified dynamic signaling interactions between hair follicle stem cells and lymphatic vessels, showing that these interactions coordinate hair follicle growth and tissue regeneration; enhancing lymphatic function may improve hair growth and present novel therapeutic opportunities for wound healing and hair loss disorders.