17 citations
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August 1979 in “Journal of The American Academy of Dermatology” This study found that a histochemical stain using 4-dimethyl-aminocinnamaldehyde effectively distinguishes between plucked anagen and telogen hairs by causing the root ends of anagen hairs to develop a red color.
24 citations
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December 1990 in “Pediatric Dermatology” This study observed that hair casts, seen in girls with tightly drawn hairstyles, may result from local circulatory disturbances and scalp inflammation.
126 citations
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January 1987 in “Journal of The American Academy of Dermatology” This article reviews the classification of hair shaft abnormalities, outlining their diagnostic features, but does not present new research findings.
35 citations
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March 2007 in “Skin Research and Technology” In this study, researchers developed a non-invasive method to distinguish exogen hair from telogen hair on the human scalp, finding that normal exogen hair levels are generally less than seven hairs per cm².
10 citations
,
June 2000 in “Primary Care” This article reviews common hair disorders and their normal anatomy and life cycle, but reports no new research findings.