Abstract
Background
Cardiovascular disease is the leading cause of morbidity and mortality in hemodialysis patients; the increased risk of cardiovascular disease is due to accelerated atherosclerosis, inflammation and impaired lipoprotein metabolism. We aimed to evaluate lipoprotein-associated phospholipase A2 (Lp-PLA2) and some pro-inflammatory aspects of the lipoprotein profile in dialyzed patients in order to evaluate the relationship with the accelerated atherosclerosis and vascular accidents.
Methods
In 102 dialysis patients and 40 non-uremic controls, we investigated the lipoprotein plasma profile, high sensitivity C-reactive protein (CRP), ceruloplasmin and serum amyloid A protein (SAA), and followed patients for 1 year to analyze the risk of acute cardiovascular events.
Results
Total cholesterol, low-density lipoprotein and high-density lipoprotein plasma levels were significantly lower in uremic patients than controls, whereas CRP, SAA, ceruloplasmin, Lp-PLA2 and their ratio with apolipoprotein A1 were significantly higher. Patients with Lp-PLA2 levels >194 nmol/min/ml had more acute cardiovascular events than patients with lower values.
Conclusion
Our results show that in dialysis subjects: (1) low-density lipoproteins show a more atherogenic phenotype than in the general population; (2) high-density lipoproteins are less anti-inflammatory; (3) Lp-PLA2 could potentially be used to evaluate cardiovascular risk.
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Abbreviations
- HP:
-
Hemodialysis patients
- CVD:
-
Cardiovascular disease
- CRP:
-
High sensitivity C-reactive protein
- LDL:
-
Low-density lipoprotein
- HDL:
-
High-density lipoprotein
- ApoB:
-
Apolipoprotein B
- ApoA1:
-
Apolipoprotein A1
- Lp-PLA2 :
-
Lipoprotein-associated phospholipase A2
- Cp:
-
Ceruloplasmin
- SAA:
-
Serum amyloid A protein
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Conflict of interest
All Authors disclose that there are no financial or personal relationships with other people or organizations that could inappropriately influence this work. All Authors participated in the study design, in the collection, analysis, and interpretation of data, in the writing of the manuscript and in the decision to submit the manuscript for publication. No study sponsors had involvement in this manuscript.
Ethical approval
All procedures were approved by the Italian ethics committees (981/CE) and were in accordance with the Helsinki declaration.
Informed consent
As approved by the institutional review board for research involving human subjects, the residual plasma used in this study was considered discarded and no informed consent was necessary. Nevertheless, at the moment of commencing hemodialysis in our center, all patients signed an informed consent allowing the use of their clinical data in anonymous form for scientific publications.
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R. Rolla and A. De Mauri equally contributed to the work.
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Rolla, R., De Mauri, A., Valsesia, A. et al. Lipoprotein profile, lipoprotein-associated phospholipase A2 and cardiovascular risk in hemodialysis patients. J Nephrol 28, 749–755 (2015). https://doi.org/10.1007/s40620-015-0194-0
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DOI: https://doi.org/10.1007/s40620-015-0194-0