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This article discusses the aging-related changes in hair structure and function, and examines various treatments like light therapy, minoxidil, and finasteride aimed at mitigating hair thinning and loss, but reports no new clinical results.

This study found that the season of the year does not significantly affect the hair regrowth rate or the telogen: anagen ratio in indoor-housed Labrador retrievers.

This study found that mice lacking the type 3 IP(3) receptor in their hair follicles experienced repetitive hair loss and regrowth, indicating disrupted hair-cycle regulation potentially linked to specific signaling pathways.

This study found that lavender oil significantly promoted hair growth in female C57BL/6 mice by increasing hair follicle number, depth, and dermal thickness, while reducing mast cell numbers.

This study found that FGF5-/- rabbits exhibited a significant long hair phenotype by prolonging the anagen phase, suggesting FGF5 acts as a negative regulator of hair growth.

This study found that Cacumen Platycladi volatile oil promotes dermal papilla cell proliferation and enhances hair growth in mice, outperforming minoxidil and showing no obvious cytotoxic effects.

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 discusses "follicular hypoglycania" as a potential pathology in hair growth disorders and reports that proteoglycan replacement therapy may improve hair loss treatments, though it presents no new clinical trial results.

This study observed that primary hair follicles in Liaoning Cashmere goats had broader hair bulb widths compared to secondary follicles, with the difference diminishing during the anagen phase of hair follicle development.

This study identified FP-1 as a highly specific extracellular matrix protein in follicular papilla cells, which may play a role in hair growth regulation during specific hair cycle phases.

This study found that mirex and TPA promote papilloma formation in CD-1 mouse skin through distinct populations of mutant Ha-ras cells, resulting in additive tumor yields.

This study found that transient non-lethal levels of endogenous ROS in cultured human hair follicles promoted entry into the growth phase by activating the hair follicle stem cell niche.

In this study, rice bran mineral extract increased expression of anagen-related proteins and decreased inflammatory markers in human dermal papilla cells, suggesting potential for hair growth enhancement and prevention of hair loss.

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 found that Rumex japonicus Houtt. root extract promoted hair growth by enhancing cell proliferation and preventing apoptosis in human dermal papilla cells and HaCaT cells, as well as in a mouse model.

This study found that human mesenchymal stem cells overexpressing JAM-A improved hair follicle structure and hair formation in mice by reducing abnormalities such as curved and zigzagged follicles.

This study identified differentially expressed miRNAs between the telogen and anagen phases of hair growth in Wan Strain Angora rabbits, contributing to understanding miRNA-mediated regulation of rabbit hair follicle cycling.

This study found that PGA-4HGF nanoparticles enhanced hair growth in mice more effectively than 4HGF alone by increasing anagen phase duration and dermal papilla cell proliferation.

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.

The document concludes that hair biology is complex and there are still unanswered questions about hair loss and follicle changes.

This study suggests that CGE may enhance hair growth by activating β-catenin signaling pathways in human hair dermal papilla cells and promoting the anagen growth phase in mice.

In this study, fermented herbal extracts promoted hair growth and activated Wnt signaling more effectively than nonfermented extracts in mice, suggesting potential benefits for hair regrowth.

This study found that topical application of triiodothyronine (T3) can induce the transition of hair follicles from the telogen to the anagen phase in mice and stimulate hair shaft growth in vitro.

This study suggests that TGF-alpha may function in an autocrine or juxtacrine manner rather than promoting cell proliferation during hair growth cycles in ferrets and sheep.

In this study, ob/ob mice were found to have a prolonged telogen hair cycle phase from 10 to 24 weeks, suggesting their potential as a model for studying telogen effluvium.

This systematic review found that chitosan-based wound therapy may accelerate wound healing by reducing inflammation and modulating immune response, but notes limited clinical trials to date.

This study identified 417 genes with differential expression at varying stages of cashmere growth in goats, highlighting their potential role in tissue remodeling and cashmere regeneration.

This study found that overexpressing the gene Thymosin β4 (Tβ4) can promote the growth and development of secondary hair follicle dermal papilla cells in cashmere goats, suggesting its potential as a target for increasing cashmere production.

In this study, researchers reported that adenosine stimulated hair shaft elongation in cultured human hair follicles by promoting proliferation and prolonging the anagen phase, suggesting the A2B adenosine receptor in outer root sheath keratinocytes as a promising target for treating hair growth disorders like alopecia.

The book discussed in this abstract is a comprehensive guide to hair analysis, detailing the latest methods and applications across various fields such as toxicology and drug monitoring, designed for both newcomers and experts in the field.