2.3 Wound-induced hair follicle neogenesis assay
Three-week-old C57BL/6N male mice were allowed to adapt to their new
environment for 3 days .1 cm2 full-thickness wounds
were generated on the backs of the mice. 20 μl of each drug was applied
to the wounds daily for up to 14, 25, or 40 days. All animal experiments
were approved by the Institutional Animal Care and Use Committee of
Yonsei University.