TLDR Hair follicles in C57BL/6 mice develop rapidly from late embryonic stages to shortly after birth, with key growth and regeneration phases identified.
The study investigated the development of hair follicles in C57BL/6 mice at various life stages. It was found that hair follicle development began at embryonic day 15.5 (E15.5) and the number of hair follicles increased rapidly from E17.5 to 3 days after birth. By the 9th day after birth, most hair follicles reached the 8th stage of development. In adult mice, 95% of hair follicles entered the growth stage IV after depilation, with a significant portion entering the degradation period by day 22. This period of rapid hair follicle increase was suggested as a key phase for studying hair follicle regeneration mechanisms.
5 citations
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November 2015 in “International Journal of Radiation Biology” Gamma-ray exposure can cause long-lasting damage to hair follicles, affecting hair structure and color.
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January 2014 in “Genetics and Molecular Research” Liaoning Cashmere goat hair follicles show synchronized growth patterns with lowest activity in May.
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