Abstract:
:The risk of premature death is high in haemodialysis (HD) patients. Antibodies against cardiolipin (anti-CL) are thrombogenic in diseases such as systemic lupus erythematosus (SLE). CL is easily oxidized (Ox) and plays a role in apoptosis. In this work we studied immunoglobulin (Ig)M anti-CL and anti-OxCL in HD-patients. We conducted an observational study with a prospective follow-up examining the relationship between anti-CL, anti-OxCL and mortality risk in a well-characterized cohort of 221 prevalent HD patients [56% men, median age 66 (interquartile range 51-74) years, vintage time 29 (15-58) months] with a mean follow-up period of 41 (20-48 months). According to the receiver operator characteristic (ROC) analysis, anti-OxCL [area under the curve (AUC) 0·62, P < 0·01], but not anti-CL (AUC 0·52, P = 0·2), is associated with mortality. In crude and adjusted Cox analysis, every log increase in anti-OxCL inversely predicted all-cause [adjusted hazard ratios (HR) 0·62 (0·43-0·89)] and CVD-related [adjusted HR 0·56 (0·32-0·98)] mortality. Patients with anti-OxCL levels below median also had increased all-cause and cardiovascular disease (CVD)-related mortality. Although anti-OxCL and anti-phosphorylcholine (PC) were related positively to each other (ρ = 0·57, P < 0·01), patients with one or two of these autoantibody levels below the median were associated with an incrementally increased death risk. Anti-OxCL were co-factor β2-GPI-independent; anti-CL from patients with anti-phospholipid antibody syndrome were β2-GPI-dependent, while sera from HD-patients less so. Sera from healthy donors was not β2-GPI-dependent. Anti-OxCL IgM is β2-glycoprotein 1 (GPI)-independent and a novel biomarker; low levels are associated with death among HD patients (and high levels with decreased risk). Combination with anti-PC increases this association. Putative therapeutic implications warrant further investigation.
journal_name
Clin Exp Immunoljournal_title
Clinical and experimental immunologyauthors
Frostegård AG,Hua X,Su J,Carrero JJ,Heimbürger O,Bárány P,Stenvinkel P,Frostegård Jdoi
10.1111/cei.12181subject
Has Abstractpub_date
2013-12-01 00:00:00pages
441-8issue
3eissn
0009-9104issn
1365-2249journal_volume
174pub_type
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journal_title:Clinical and experimental immunology
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journal_title:Clinical and experimental immunology
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journal_title:Clinical and experimental immunology
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journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:
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journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:
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journal_title:Clinical and experimental immunology
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journal_title:Clinical and experimental immunology
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journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:
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journal_title:Clinical and experimental immunology
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