A stain for plucked anagen hairs.
Anagen and telogen plucked hairs may be difficult to distinguish based on their microscopic appearance. The root ends of plucked anagen hairs develop a red color when stained with 4-dimethylaminocinnamaldehyde, while those of plucked telogen hairs do not. This is the result of a reaction with citrulline-containing proteins in the internal root sheath. This histochemical stain provides a simple and accurate means of determining the telogen/anagen ratio in plucked hairs.
D000447:Aldehydes; D000505:Alopecia / Q000473:pathology*; D002934:Cinnamates; D006197:Hair / Q000033:anatomy & histology / Q000473:pathology*; D006204:Hair Removal; D006801:Humans; D007202:Indicators and Reagents; D013194:Staining and Labeling
D000447:Aldehydes; D002934:Cinnamates; D007202:Indicators and Reagents; C018523:4-dimethylaminocinnamaldehyde