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Association of human T-cell leukemia virus type 1 with prevalent rheumatoid arthritis among atomic bomb survivors: A cross-sectional study

Journal Article · · Medicine
 [1];  [2];  [3];  [2];  [2];  [4];  [5];  [6]
  1. Nagasaki Univ. (Japan). Radiation Effects Research Foundation. Dept. of Clinical Studies; OSTI
  2. Nagasaki Univ. (Japan). Radiation Effects Research Foundation. Dept. of Clinical Studies
  3. Nagasaki Univ. (Japan). Radiation Effects Research Foundation. Dept. of Statistics
  4. Nagasaki Univ. (Japan). Sasebo Chuo Hospital. Rheumatic and Collagen Disease Center
  5. Nagasaki Univ. (Japan). Graduate School of Biomedical Sciences. Dept. of Immunology and Rheumatology
  6. 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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