Serum levels of IgG antibodies against oxidized LDL and atherogenic indices in HIV-1-infected patients treated with protease inhibitors
-
Joel da Cunha
, Luciana Morganti Ferreira Maselli , Arïcio Treitinger , Andrea Moreira Monteiro , Magnus Gidlund , Raul Cavalcanti Maranhão , Celso Spada und Sérgio Paulo Bydlowski
Abstract
Background: Antibodies against low-density lipoproteins (LDLs) that have been oxidized are associated with development of atherosclerotic lesions. In individuals infected with human immunodeficiency virus type 1 (HIV-1) with or without therapy, dyslipidemia and increased cardiovascular risk are observed.
Methods: Serum levels of IgG antibodies against oxidized LDLs (IgG anti-oxLDL Abs) were determined by assay in 151 HIV-1-infected patients. Of these, 42 patients did not receive anti-retroviral therapy (ART-naïve), whereas 109 received highly active anti-retroviral therapy (HAART) consisting of lopinavir/ritonavir (LOP/r; n=50), efavirenz (EFV; n=30) and nevirapine (NVP; n=29) associated with nucleoside reverse transcriptase inhibitors. HIV-1 seronegative individuals (n=43) participated in the study. The following parameters were quantified: total cholesterol and its fractions, atherogenic indices (AIs), apolipoproteins A1 and B100, high sensitivity C-reactive protein, CD4+ and CD8+ T cells, and HIV-1-RNA.
Results: Levels of IgG anti-oxLDL Abs were significantly higher (p<0.05) in the LOP/r group compared with the EFV and/or NVP and the seronegative group: median 0.32 (0.15, 0.58; 95% confidence interval) vs. 0.25 (0.13, 0.53) vs. 0.18 (0.04, 0.38), respectively. HIV-1-infected ART-naïve patients (n=42) presented antibodies levels similar to those observed for the LOP/r group, 0.33 (0.13, 0.63; p>0.05). The levels of IgG anti-oxLDL Abs correlated with an increase in AIs (r=0.216; p=0.036) and triglycerides (r=0.220; p=0.044) in the LOP/r group, and AIs in the ART-naïve group (r=0.300; p=0.046).
Conclusions: Patients treated with LOP/r showed higher levels of IgG anti-oxLDL Abs compared with patients treated with EFV or NVP regimens, and these levels were associated with an increase in AIs.
We wish to thank Professor Manoel Rosa de Oliveira Lino (PhD), the Department of Informatics and Statistics from the Federal University of Santa Catarina, for his contributions to our statistical analyses. This study was financially supported with resources from National Counsel of Technological and Scientific Development (CNPq), The State of Sao Paulo Research Foundation (FAPESP) and The National Institute of Science and Technology of Complex Fluids (INCT-FCx).
Conflict of interest statement
Authors’ conflict of interest disclosure: The authors stated that there are no conflicts of interest regarding the publication of this article.
Research funding: None declared.
Employment or leadership: None declared.
Honorarium: None declared.
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Artikel in diesem Heft
- Letters to the Editor
- Performance evaluation of three different immunoassays for detection of antibodies to hepatitis B core
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Artikel in diesem Heft
- Letters to the Editor
- Performance evaluation of three different immunoassays for detection of antibodies to hepatitis B core
- Serum homocysteine concentrations in Chinese children with autism
- Interchangeability of venous and capillary HbA1c results is affected by oxidative stress
- Interference of hemoglobin (Hb) N-Baltimore on measurement of HbA1c using the HA-8160 HPLC method
- First human isolate of Mycobacterium madagascariense in the sputum of a patient with tracheobronchitis
- Protein S and protein C measurements should not be undertaken during vitamin K antagonist therapy
- α2-HS glycoprotein is an essential component of cryoglobulin associated with chronic hepatitis C
- An unusual interference in CK MB assay caused by a macro enzyme creatine phosphokinase (CK) type 2 in HIV-infected patients
- An automated technique for the measurement of the plasma glutathione reductase activity and determination of reference limits for a healthy population
- Is osteopontin stable in plasma and serum?
- Evidence-based approach to reducing perceived wasteful practices in laboratory medicine
- Masthead
- Masthead
- Editorials
- Testing volume is not synonymous of cost, value and efficacy in laboratory diagnostics
- Lessons from controversy: biomarkers evaluation
- Commercial immunoassays in biomarkers studies: researchers beware!1)
- Trials and tribulations in lupus anticoagulant testing
- Reviews
- Mass spectrometry: a revolution in clinical microbiology?
- Chronic Chagas disease: from basics to laboratory medicine
- General Clinical Chemistry and Laboratory Medicine
- Shop for quality or quantity? Volumes and costs in clinical laboratories
- Minor improvement of venous blood specimen collection practices in primary health care after a large-scale educational intervention
- Evaluation of high resolution gel β2-transferrin for detection of cerebrospinal fluid leak
- Serum kallikrein-8 correlates with skin activity, but not psoriatic arthritis, in patients with psoriatic disease
- Soluble urokinase plasminogen activator receptor (suPAR) in the assessment of inflammatory activity of rheumatoid arthritis patients in remission
- Bone mass density selectively correlates with serum markers of oxidative damage in post-menopausal women
- Validation of a fast and reliable liquid chromatography-tandem mass spectrometry (LC-MS/MS) with atmospheric pressure chemical ionization method for simultaneous quantitation of voriconazole, itraconazole and its active metabolite hydroxyitraconazole in human plasma
- Performance of different screening methods for the determination of urinary glycosaminoclycans
- Intestinal permeability and fecal eosinophil-derived neurotoxin are the best diagnosis tools for digestive non-IgE-mediated cow’s milk allergy in toddlers
- An internal validation approach and quality control on hematopoietic chimerism testing after allogeneic hematopoietic cell transplantation
- Serum levels of IgG antibodies against oxidized LDL and atherogenic indices in HIV-1-infected patients treated with protease inhibitors
- Cooperation experience in a multicentre study to define the upper limits in a normal population for the diagnostic assessment of the functional lupus anticoagulant assays
- Contribution of procoagulant phospholipids, thrombomodulin activity and thrombin generation assays as prognostic factors in intensive care patients with septic and non-septic organ failure
- Suitability of POC lactate methods for fetal and perinatal lactate testing: considerations for accuracy, specificity and decision making criteria
- Point-of-care testing on admission to the intensive care unit: lactate and glucose independently predict mortality
- Reference Values and Biological Variations
- CA125 reference values change in male and postmenopausal female subjects
- Distributions and ranges of values of blood and urinary biomarker of inflammation and oxidative stress in the workers engaged in office machine manufactures: evaluation of reference values
- Cancer Diagnostics
- Association of acute phase protein-haptoglobin, and epithelial-mesenchymal transition in buccal cancer: a preliminary report
- Comparison of diagnostic and prognostic performance of two assays measuring thymidine kinase 1 activity in serum of breast cancer patients
- Evaluation of the BRAHMS Kryptor® Thyroglobulin Minirecovery Test in patients with differentiated thyroid carcinoma