Association of human T-cell leukemia virus type 1 with prevalent rheumatoid arthritis among atomic bomb survivors: A cross-sectional study
- Nagasaki Univ. (Japan). Radiation Effects Research Foundation. Dept. of Clinical Studies; OSTI
- Nagasaki Univ. (Japan). Radiation Effects Research Foundation. Dept. of Clinical Studies
- Nagasaki Univ. (Japan). Radiation Effects Research Foundation. Dept. of Statistics
- Nagasaki Univ. (Japan). Sasebo Chuo Hospital. Rheumatic and Collagen Disease Center
- Nagasaki Univ. (Japan). Graduate School of Biomedical Sciences. Dept. of Immunology and Rheumatology
- Nagasaki Univ. (Japan). Graduate School of Biomedical Sciences. Dept. of Immunology and Rheumatology
Previous studies have suggested that human T-cell leukemia virus type 1 (HTLV-1) might act as a pathogen in rheumatoid arthritis (RA), but epidemiological evidence of an association is scarce. We measured anti-HTLV-1 antibodies among Nagasaki atomic bomb survivors to determine whether HTLV-1 is related to RA and whether radiation exposure is associated with HTLV-1 and RA prevalence. This is a cross-sectional study among atomic bomb survivors who participated in biennial health examinations from 2006 to 2010. Serum levels of anti-HTLV-1 antibodies were measured using a chemiluminescent enzyme immunoassay and confirmed by Western blotting. Association between HTLV-1 and RA was analyzed by a logistic regression model. Of 2091 participants (women 61.5%; median age, 73 years), 215 (10.3%) had anti-HTLV-1 antibodies. HTLV-1 prevalence was higher among women (13.1% vs 5.8%; P<.001). Twenty-two participants (1.1%) were diagnosed with RA. HTLV-1 prevalence among RA participants was significantly higher than that among non-RA participants (27.3% vs 10.1%; P=.020). After adjustment for age, sex, and hepatitis C virus infection, HTLV-1 was significantly associated with prevalent RA (odds ratio, 2.89; 95% confidence interval, 1.06, 7.03). There was no association between radiation dose and either the prevalence of HTLV-1 or RA. This study, among a well-defined group of atomic bomb survivors, suggests that HTLV-1 is associated with RA. Abbreviations: AHS = Adult Health Study, ATL/ATLL = adult T cell leukemia/lymphoma, bioDMARDs = biological disease modifying antirheumatic drugs, CCP = cyclic citrullinated peptide, CI = confidence interval, CLEIA = chemiluminescent enzyme immunoassay, CRP = C-reactive protein, csDMARDs = conventional synthetic disease modifying antirheumatic drugs, Gy = gray, HCV = hepatitis C virus, HTLV-1 = human T-cell leukemia virus type 1, IF = immunofluorescent, RA = rheumatoid arthritis, RERF = Radiation Effects Research Foundation, RF = rheumatoid factor, SS = Sjogren syndrome.
- Research Organization:
- National Academy of Sciences, Washington, DC (United States)
- Sponsoring Organization:
- USDOE Office of Environment, Health, Safety and Security (AU)
- Grant/Contract Number:
- HS0000031
- OSTI ID:
- 1850255
- Journal Information:
- Medicine, Journal Name: Medicine Journal Issue: 24 Vol. 100; ISSN 0025-7974
- Publisher:
- Wolters Kluwer Health, Inc.Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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