What does PCSK9 do to your heart and blood vessels?
The role of PCSK9 in heart failure and other cardiovascular diseases—mechanisms of action beyond its effect on LDL cholesterol
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
PCSK9 is a protein that not only raises bad cholesterol but also hurts the heart and blood vessels in other ways. It causes swelling in blood vessels, helps form blockages, and can make heart cells die. Blocking PCSK9 helps lower cholesterol and might also protect the heart directly.
Surprising Findings
PCSK9 causes heart cell death through three distinct pathways: apoptosis, pyroptosis, and ferroptosis.
Most proteins trigger only one form of cell death—PCSK9 uses three, making it uniquely destructive during heart attacks or stress.
Practical Takeaways
If you have a history of heart disease or high LDL, ask your doctor if PCSK9 inhibitors could be an option—especially if statins aren’t enough.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
PCSK9 is a protein that not only raises bad cholesterol but also hurts the heart and blood vessels in other ways. It causes swelling in blood vessels, helps form blockages, and can make heart cells die. Blocking PCSK9 helps lower cholesterol and might also protect the heart directly.
Surprising Findings
PCSK9 causes heart cell death through three distinct pathways: apoptosis, pyroptosis, and ferroptosis.
Most proteins trigger only one form of cell death—PCSK9 uses three, making it uniquely destructive during heart attacks or stress.
Practical Takeaways
If you have a history of heart disease or high LDL, ask your doctor if PCSK9 inhibitors could be an option—especially if statins aren’t enough.
Publication
Journal
Heart Failure Reviews
Year
2024
Authors
Mieczysław Dutka, Karolina Zimmer, Michał Ćwiertnia, Tomasz P Ilczak, R. Bobiński
Related Content
Claims (4)
Blocking a protein called PCSK9 with certain drugs helps your body remove bad cholesterol from your blood more effectively.
PCSK9 might make heart failure worse by causing heart cells to die in different ways when the heart is under stress, and this seems to happen in both animals and people, not just because of cholesterol issues.
PCSK9 doesn't just raise bad cholesterol — it also directly worsens artery disease by making immune and blood vessel cells absorb more damaged fats, reducing their ability to clean out cholesterol, and increasing inflammation in the arteries.
These cholesterol drugs can cut bad cholesterol by half and help prevent heart attacks in people with heart disease, and they’re about as safe as a dummy shot—though some might get a little redness where they’re injected.