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  • Title: [Association of class I HLA antigens with invasive meningococcal disease].
    Author: Holub M, Hobstová J, Prazák J, Pudil P.
    Journal: Cas Lek Cesk; 1998 Oct 05; 137(19):598-600. PubMed ID: 9818472.
    Abstract:
    BACKGROUND: The majority of meningococcal infections are characterized by nasopharyngeal carriership. In some patients invasive disease with a mild course develops, while some cases have a lethal outcome. The reasons of this wide variation range are not clear. The objective of the present work was to assess whether the development of invasive meningococcal disease or its prognosis are associated with HLA class I. METHODS AND RESULTS: The group of patients was formed by 40 patients (29 females, 11 males, mean age 16 years, range 8 months to 52 years). In 28 patients the disease was caused by N. meningitidis group C, in 9 cases group B, in three cases the serotype was not assessed. The etiology was confirmed by cultivation or latex agglutination. Twenty-three patients had a mild course of the disease, 8 a medium severe one, 9 patients a severe clinical course (score according to Stiehme, Damrosch and Rosenblat). The patients were compared with 227 non-related blood donors (114 women, 113 men, 18 to 50 years old). In patients and controls 24 lymphocytic HLA antigens class I were identified as to type. Typing was done using the standard microlymphocytotoxic test in the NIH modification. The results were processed by statistical methods using Fisher's exact test and the 2 x 2 test with Yates correction. In patients with a mild course HLA antigens B7 and B12 predominate (p = 0.03; p = 0.02), in medium severe cases antigen A11 (p = 0.03), in patients with the most severe course antigen A9 (p = 0.04). In invasive infections caused by N. meningitidis serotype B antigen B17 predominates (p = 0.05). CONCLUSIONS: The severity of meningococcal invasive infections is associated with HLA class I. Invasive disease caused by N. meningitidis serotype B are more likely to occur in carriers of HLA B17. No relationship was found between HLA class I and invasive disease caused by N. meningitidis regardless of serotype and with serotype C.
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