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- W2889480521 abstract "Introduction: Proprotein convertase subtilisin/kexin type 9 (PCSK9) plays a critical role in regulating cholesterol metabolism mainly by binding to LDL receptors targeting them for degradation. Statins, inhibitors of cholesterol synthesis, increase the serum PCSK9 concentration limiting the potential of statins to reduce LDL cholesterol (C) concentration, whereas ezetimibe, an inhibitor of cholesterol absorption, has ambiguous effects on circulating PCSK9 levels. Plant stanols lower LDL-C by inhibiting cholesterol absorption, but their effect on serum PCSK9 concentration is not known. Hypothesis: We assessed the hypothesis that consumption of plant stanol esters lowers LDL-C without increasing circulating PCSK9 levels. Methods: Ninety-two normo- and mildly hypercholesterolemic subjects, 35 men and 57 women (mean age 50.8±1.0 (SE) years) were randomly divided into plant stanol ester (STANOL) (n=46) and control (n=46) groups. They consumed spread enriched with (STANOL group) and without (control group) plant stanol (3g /d) ester in a double-blind intervention for six months. Serum lipids and lipoproteins were analysed enzymatically and serum PCSK9 concentration was quantitated with Quantikine Elisa Immunoassay at baseline and after the intervention. Results: At baseline, serum PCSK9 levels correlated positively with LDL-C in the whole study population. Serum total, LDL-C and non-HDL-C concentrations, similar between the study groups at baseline, declined by 7%,10%, and 11% at the end of the intervention in the STANOL group compared with the control group (p< 0.001, for all). The baseline serum PCSK9 concentrations were similar between the groups (STANOL 284±16 ng/ml, controls 273±16 ng/ml, ns). At the end of the intervention, serum PCSK9 concentrations were unchanged from baseline in both groups and did not differ between the groups (STANOL 293 ±15 ng/ml, controls 309±16 ng/ml, ns). Conclusion: In conclusion, plant stanol ester consumption does not affect the circulating PCSK9 concentration. Thus, plant stanols provide an efficient dietary means to lower LDL-C concentration without interfering with the LDL receptor-mediated cellular cholesterol uptake and removal." @default.
- W2889480521 created "2018-09-07" @default.
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- W2889480521 date "2014-11-25" @default.
- W2889480521 modified "2023-10-16" @default.
- W2889480521 title "Abstract 15438: Serum Proprotein Convertase Subtilisin/Kexin Type 9 Levels Are Not Increased by Plant Stanol Ester Consumption" @default.
- W2889480521 doi "https://doi.org/10.1161/circ.130.suppl_2.15438" @default.
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