January 2025 in “Arquivo Brasileiro de Medicina Veterinária e Zootecnia” In this study, researchers observed that telogen hair was more prevalent than anagen hair in both male and female agoutis over a one-year period in Teresina-PI, regardless of dry or rainy seasons, with no significant differences in dermal follicular volume between the sexes.
4 citations
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April 2016 in “Experimental Dermatology” This commentary discusses the mechanisms of progression and potential regrowth in androgenetic alopecia, indicating that the initiation of anagen in kenogen follicles is more critical for hair density improvement than reversing follicle miniaturization.
24 citations
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March 1995 in “British Journal of Dermatology” This study reported that etretinate treatment leads to increased hair shedding due to a sustained decrease in anagen duration, with an arrest at the onset of anagen and a follicular anchorage defect in telogen contributing to alopecia.
7 citations
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July 2019 in “International Journal of Molecular Sciences” 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.
April 2026 in “Tissue Engineering and Regenerative Medicine” This study found that the GPRC6A-Duox1 signaling pathway influences hair cycle progression and testosterone-mediated hair loss in mice, suggesting that disruption of this pathway leads to resistance against testosterone-induced hair loss and longer anagen phase duration.