64 citations
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July 1997 in “Journal of The American Academy of Dermatology” This study found that eosinophils are a useful diagnostic feature for alopecia areata, especially when the typical "swarm of bees" lymphoid infiltrate is absent, helping differentiate it from trichotillomania.
22 citations
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February 2000 in “Journal of the American Academy of Dermatology” Eosinophils are not a reliable marker for diagnosing alopecia areata.
21 citations
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September 1990 in “Journal of The American Academy of Dermatology” This study reports that six women developed scleroderma while taking L-tryptophan and showed improvement after stopping the supplement and/or starting corticosteroid therapy.
19 citations
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September 2014 in “JAMA Dermatology” Eosinophilic infiltrate is not a reliable indicator for diagnosing chronic alopecia areata.
11 citations
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January 1993 in “Dermatology” In this study, researchers found histopathological similarities between L-tryptophan eosinophilic myalgia syndrome and idiopathic eosinophilic fasciitis, with certain unique inflammatory features present in the former.