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  • Title: Survey of human immunodeficiency virus (HIV)-seropositive patients with mycobacterial infection in Japan.
    Author: Otsuka Y, Fujino T, Mori N, Sekiguchi J, Toyota E, Saruta K, Kikuchi Y, Sasaki Y, Ajisawa A, Otsuka Y, Nagai H, Takahara M, Saka H, Shirasaka T, Yamashita Y, Kiyosuke M, Koga H, Oka S, Kimura S, Mori T, Kuratsuji T, Kirikae T.
    Journal: J Infect; 2005 Dec; 51(5):364-74. PubMed ID: 16321647.
    Abstract:
    OBJECTIVE: To assess DNA polymorphisms in mycobacterial isolates obtained from human immunodeficiency virus (HIV)-seropositive patients with tuberculosis in Japan from 1996 to 2003. METHODS: Restriction fragment length polymorphisms (RFLP) from Mycobacterium tuberculosis and Mycobacterium avium isolates obtained from individual seropositive patients with tuberculosis (n=78) were analysed with the use of IS6110 and (CGG)(5) or IS1245 and IS1311, respectively, as markers. As a control, the same procedures were applied to isolates from HIV-seronegative tuberculosis patients (n=87). RESULTS: Of 86 mycobacterial strains, M. tuberculosis, M. avium and Mycobacterium chelonae were identified in 48 (55.8%), 36 (41.9%) and 2 (2.3%) isolates, respectively. The obtained RFLP patterns of M. tuberculosis isolates from both the HIV-seropositive and -seronegative groups were variable, suggesting no obvious clustering among the isolates. Similar results were obtained in isolates of M. avium. CONCLUSIONS: This is the first report on the molecular epidemiology of Mycobacterium spp. isolated from HIV-seropositive patients in Japan. The results indicate that no particular clones of M. tuberculosis or M. avium prevail in HIV-seropositive patients in Japan. Further monitoring of mycobacterial infection associated with HIV infection in Japan should be continued.
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