Eighteen black patients with narcolepsy underwent human leukocyte antigen (HLA) typing. Eleven of the 18 had cataplexy. Twelve patients (66.6%) had HLA-DR2; 7 patients with cataplexy had DR2. All patients had DQw1. In contrast to white and Japanese patients studied to date, not all black narcoleptics have DR2.
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http://dx.doi.org/10.1212/wnl.37.12.1858 | DOI Listing |
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