Abstract | BACKGROUND: OBJECTIVE: To investigate the association between PCSK9 concentrations and the magnitude of proteinuria. METHODS: A total of 168 patients from nephrology and lipid clinics of the Centre Hospitalier de l'Université de Montreal were included in this cross-sectional observational study. Proteinuria level was classified in three groups: nephrotic syndrome (n = 51), proteinuria (n = 66), and control (n = 51) according to proteinuria and albuminemia concentrations. Plasma PCSK9 concentration was measured by an in-house ELISA and the lipid profile was assayed using an automated biochemical analyzer (COBAS INTEGRA 400, Roche Diagnostic). RESULTS: Plasma PCSK9 concentration was highest in the NS group (170.9 ng/mL), intermediate in the proteinuria group (156.4 ng/mL) and lowest in the control group (136.0 ng/mL), P = 0.005. We observed an association between the protein/ creatinine (P/C) ratio and plasma PCSK9 concentrations in the whole cohort (β = 0.205, P = 0.006) after adjustment for age, sex, LDL-C, statin use, other lipid-lowering therapy use, diabetes, and eGFR. CONCLUSIONS: Patients with nephrotic syndrome have an increased risk of cardiovascular complications. PCSK9 is significantly elevated in NS and is associated with a detrimental lipid profile that could contribute to a worse prognosis of the disease. Future studies evaluating the efficacy of PCSK9 inhibitors in patients with NS would be justified.
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Authors | Samuel Doiron, Martine Paquette, Alexis Baass, Guillaume Bollée, Héloïse Cardinal, Sophie Bernard |
Journal | Clinical biochemistry
(Clin Biochem)
2022 Nov-Dec
Vol. 109-110
Pg. 51-56
ISSN: 1873-2933 [Electronic] United States |
PMID | 35940295
(Publication Type: Observational Study, Journal Article)
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Copyright | Copyright © 2022 The Canadian Society of Clinical Chemists. Published by Elsevier Inc. All rights reserved. |
Chemical References |
- PCSK9 protein, human
- Proprotein Convertase 9
- Lipids
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Topics |
- Humans
- Proprotein Convertase 9
- Cross-Sectional Studies
- Hypercholesterolemia
(complications)
- Nephrotic Syndrome
(complications)
- Proteinuria
(complications)
- Lipids
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