May 2020 in “Current developments in nutrition” This study suggests that retinoic acid synthesis and signaling may play a role in maintaining refractory telogen, potentially inhibiting the hair cycle in mice fed varying levels of vitamin A.
6 citations
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February 2021 in “Frontiers in Cell and Developmental Biology” This study suggests that vitamin A may inhibit hair follicle stem cells during refractory telogen in a dose-dependent manner, based on retinyl ester levels and vitamin A metabolism protein localization in mice.
120 citations
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November 2014 in “Biological Reviews” This article explores the dynamic and energy-efficient nature of telogen hair follicles, challenging the notion of dormancy, and highlights their potential in advancing treatments for hair growth disorders.
2 citations
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December 2023 in “International Journal of Dermatology” In this study, researchers identified a unique variant of alopecia areata characterized by an increase in telogen hair follicles and minimal inflammation present in the microenvironment.
April 2017 in “The FASEB Journal” This study suggests that excess dietary vitamin A may arrest hair follicles in refractory telogen in mice, while adequate levels promote competent telogen, revealing dose-dependent effects on hair cycling.