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the claim
PCSK9 has biological functions other than LDL cholesterol control
the verdict
SUPPORTED
the evidence backs this
refutedsupported
the weight of evidence
7 sources for · 0 against

Multiple studies demonstrate that PCSK9 has pleiotropic, biological functions beyond regulating LDL cholesterol, including roles in inflammation, hemostasis, platelet activation, and neuronal protection.

Evidence for · 7
Pretreatment With PCSK9 Inhibitor Protects the Brain Against Cardiac Ischemia/Reperfusion Injury Through a Reduction of Neuronal Inflammation and Amyloid Beta Aggregation
2019 · cited by 78
Pretreatment with a PCSK9 inhibitor reduces neuronal inflammation and amyloid-beta aggregation in the brain following cardiac ischemia/reperfusion injury.
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The analysis

The retrieved papers consistently support the claim that PCSK9 has biological functions outside of LDL cholesterol control. Multiple reviews and experimental studies document its involvement in thrombosis, platelet reactivity, neuroinflammation, immune responses, and vascular inflammation. There are no refuting studies in the provided set.

More for · 6
PCSK9 in Haemostasis and Thrombosis: Possible Pleiotropic Effects of PCSK9 Inhibitors in Cardiovascular Prevention
2019 · cited by 74
PCSK9 influences hemostasis and thrombosis by modulating platelet activation and blood coagulation independently of LDL cholesterol.
Beyond cholesterol metabolism: The pleiotropic effects of proprotein convertase subtilisin/kexin type 9 (PCSK9). Genetics, mutations, expression, and perspective for long‐term inhibition
2020 · cited by 60
PCSK9 is described as a ubiquitous protein involved in immune response, hemostasis, glucose metabolism, and neuronal survival.
Pleiotropic Effects of PCSK9: Focus on Thrombosis and Haemostasis
2022 · cited by 20
PCSK9 knockout animals exhibit reduced platelet activity and arterial thrombosis, indicating lipid-independent roles in thrombogenesis.
Effects of PCSK9 inhibitors on HDL cholesterol efflux and serum cholesterol loading capacity in familial hypercholesterolemia subjects: a multi-lipid-center real-world evaluation
2022 · cited by 17
PCSK9 inhibitors modulate extrahepatic lipid metabolism by increasing cholesterol efflux and altering serum cholesterol loading capacity.
Non-Lipid Effects of PCSK9 Monoclonal Antibodies on Vessel Wall
2022 · cited by 14
PCSK9 monoclonal antibodies exhibit non-lipid effects, such as reducing platelet aggregation, decreasing venous thromboembolism, and improving endothelial function.
The pleiotropic effects of PCSK9 in cardiovascular diseases beyond cholesterol metabolism
2025 · cited by 7
PCSK9 interacts with receptors like CD36, LRP-1, and ABCA1 in the vascular system, supporting LDLR-independent signaling pathways.
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first checked04 Aug 2026
judged → SUPPORTED · 8704 Aug 2026
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