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Autoantibodies against oxidized low-density lipoprotein and lipid profile in patients with chronic periaortitis: case–control study
- Source :
- Rheumatology International. 31:201-208
- Publication Year :
- 2009
- Publisher :
- Springer Science and Business Media LLC, 2009.
-
Abstract
- Chronic periaortitis is thought to result from an autoallergic reaction to oxidized low-density lipoprotein (OxLDL). No data exist on lipid profile and atherosclerotic biomarkers. We investigated circulating levels of OxLDL and of anti-OxLDL (aOxLDL) antibodies in patients with chronic periaortitis using the cross-sectional case-control study on 20 patients with chronic periaortitis. Patients were compared to 20 age- and sex-matched controls. aOxLDL antibodies were measured by ELISA and expressed as mean optical density values at 450 nm from duplicate measurements (OD(450)). aOxLDL antibody titers (median [interquartile range]) did not differ significantly between patients and controls (aOxLDL-IgM: 0.70 [0.24-1.08] vs. 0.54 [0.25-0.73] OD(450); aOxLDL-IgG: 0.59 [0.38-0.75] vs. 0.41[0.33-0.63]OD(450)). Female patients had higher aOxLDL-IgM levels than male patients (1.02 [0.46-1.38] vs. 0.29 [0.22-0.84] OD(450); P = 0.05). aOxLDL-IgM titers were lower in patients with cardiovascular disease (CVD) than in patients without CVD (0.22 [0.16-0.37] vs. 0.92 [0.70-1.30] OD(450); P = 0.003) and correlated positively with HDL-cholesterol (r = 0.47, 95% CI 0.02-0.69; P = 0.03) and inversely with diastolic blood pressure (r = -0.46, 95% CI -0.75 to -0.01; P = 0.03) and OxLDL/apoB ratio (r = -0.41, 95% CI -0.73 to 0.04; P = 0.06). No differences or associations were found between aOxLDL-IgG titers and other variables between or within patients and/or controls. In patients OxLDL levels correlated with smoking pack-years (r = 0.58, 95% CI 0.17-0.81; P = 0.007). Data suggest a differing innate immune response to OxLDL in patients with chronic periaortitis compared to controls. Whether this response is causally related to chronic periaortitis development remains to be clarified.
- Subjects :
- Male
medicine.medical_specialty
Apolipoprotein B
Immunology
Rheumatology
Interquartile range
Internal medicine
medicine
Humans
Immunology and Allergy
Antihypertensive Agents
Aged
Apolipoproteins B
Autoantibodies
biology
medicine.diagnostic_test
business.industry
Smoking
Case-control study
Autoantibody
Antibody titer
Retroperitoneal Fibrosis
Middle Aged
Atherosclerosis
Lipids
Lipoproteins, LDL
Cross-Sectional Studies
Treatment Outcome
Endocrinology
Blood pressure
Immunoglobulin M
Case-Control Studies
Immunoglobulin G
Hypertension
biology.protein
Female
business
Lipid profile
Lipoprotein
Subjects
Details
- ISSN :
- 1437160X and 01728172
- Volume :
- 31
- Database :
- OpenAIRE
- Journal :
- Rheumatology International
- Accession number :
- edsair.doi.dedup.....782c6d70499d1849f42be2c4cbc00f8b