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RESEARCH PRODUCT
Lipoprotein-associated phospholipase A₂ activity is increased in patients with definite familial hypercholesterolemia compared with other forms of hypercholesterolemia
Maurizio AvernaDominique Bonnefont-rousselotAlessandro MattinaAlessandro MattinaDavide NotoRanda BittarPhilippe GiralEric BruckertDavid Rosenbaumsubject
Male0301 basic medicineEndocrinology Diabetes and MetabolismMedicine (miscellaneous)Low density lipoproteinDiseaseFamilial hypercholesterolemia030204 cardiovascular system & hematologyGastroenterologychemistry.chemical_compound0302 clinical medicineVascular inflammationeducation.field_of_studyNutrition and Dieteticsmedicine.diagnostic_testGenetic disorderMiddle Aged[SDV.MHEP.EM]Life Sciences [q-bio]/Human health and pathology/Endocrinology and metabolismCardiovascular diseaseLipidsUp-Regulation3. Good healthPhenotypeLow-density lipoproteinApolipoprotein B-100Femalelipids (amino acids peptides and proteins)Cardiology and Cardiovascular MedicineAdultmedicine.medical_specialtyStatin treatmentHypercholesterolemiaFamilial hypercholesterolemiaPopulationPhysical examinationHyperlipoproteinemia Type II03 medical and health sciences[SDV.MHEP.CSC]Life Sciences [q-bio]/Human health and pathology/Cardiology and cardiovascular systemInternal medicinemedicineHumansLipoprotein-associated phospholipase A2Plaque vulnerabilityeducationAgedApolipoprotein A-Ibusiness.industryCholesterol HDLCholesterol LDLStatin treatmentAtherosclerosisCardiovascular riskmedicine.diseaseCross-Sectional Studies030104 developmental biologychemistry1-Alkyl-2-acetylglycerophosphocholine EsteraseHydroxymethylglutaryl-CoA Reductase InhibitorsbusinessBiomarkersLipoproteindescription
International audience; Background and Aim: Lipoprotein-associated phospholipase A2 (Lp-PLA2) plays a key role in atherosclerosis development. It is considered a marker of increased risk of cardiovascular disease (CVD) and plaque vulnerability. Familial hypercholesterolemia (FH) is a genetic disorder characterized by elevated plasma levels of low-density lipoprotein cholesterol and a higher prevalence of early CVD. Our aim was to evaluate the differences in Lp-PLA2 activity in a population of hypercholesterolemic patients with and without definite FH.Methods and Results: Hypercholesterolemic patients were consecutively recruited. Definite FH was defined according to Dutch Lipid Clinic Network criteria ≥8. All patients underwent routine clinical examination and biological assessments and Lp-PLA2 activity was measured in blood samples. Among 469 patients, 118 had a definite diagnosis of FH. Lp-PLA2 activity was significantly higher in definite FH patients compared to non-definite FH patients (206.5 ± 54.5 vs. 180.8 ± 48.4 nmol/min/mL, p < 0.0001). Lp-PLA2 positively correlated with total cholesterol, LDL-C and apolipoprotein B and negatively with HDL-C and apolipoprotein A-1. In multivariate analysis, definite FH diagnosis, LDL-C, HDL-C and statin treatment remained correlates of Lp-PLA2 independently of systolic blood pressure.Conclusions: Lp-PLA2 activity was higher in definite FH than in non-definite FH patients independently of LDL-C levels and statin treatment. These results highlight the particular phenotype of FH subjects among hypercholesterolemic patients. As increased Lp-PLA2 activity suggests, FH patients exhibit higher arterial inflammation that may contribute to their high cardiovascular risk. Our results reinforce the potential beneficial role of statins pleiotropic effects and the need for proper identification and treatment of FH patients.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-05-01 | Nutrition, Metabolism and Cardiovascular Diseases |