Young High Cholesterol & Atherosclerosis Risk
- New research indicates that the progress of atherosclerosis, or hardening of the arteries, can start much earlier in life.
- The research, focusing on the role of cholesterol, also suggests that individuals taking lipid-lowering medications like statins should continue their treatment even after achieving target cholesterol levels.
- Atherosclerosis, a major contributor to heart and circulatory diseases, involves the narrowing and hardening of arteries due to plaque buildup.
Understand how early cholesterol levels can substantially impact your long-term cardiovascular health. A groundbreaking study reveals that the risk of atherosclerosis begins earlier than previously realized, underscoring the need for proactive cholesterol management from a young age. Fluctuating cholesterol poses a greater threat than consistently high levels, highlighting the potential risks of inconsistent statin use. Individuals prescribed statins shoudl maintain consistent medication to minimize atherosclerosis risk. News Directory 3 keeps you informed on the latest data. Discover what’s next in preventative heart health strategies as research identifies targeted therapies.
Early Cholesterol Levels Impact Atherosclerosis Risk, study Finds
New research indicates that the progress of atherosclerosis, or hardening of the arteries, can start much earlier in life. The study emphasizes the importance of maintaining healthy cholesterol levels from a young age to mitigate future cardiovascular risks.
The research, focusing on the role of cholesterol, also suggests that individuals taking lipid-lowering medications like statins should continue their treatment even after achieving target cholesterol levels. Discontinuing statins could possibly elevate the risk of atherosclerosis.
Atherosclerosis, a major contributor to heart and circulatory diseases, involves the narrowing and hardening of arteries due to plaque buildup. These plaques consist of fat, cholesterol, calcium, and other substances found in the bloodstream.
Traditionally, atherosclerosis is viewed as a condition primarily affecting older adults, with screening and prevention programs typically targeting individuals over 50 with high cholesterol. However, a study published in Nature by University of Cambridge scientists reveals that elevated cholesterol levels at a younger age, especially when fluctuating, can be more detrimental than high cholesterol later in life.
To investigate the mechanisms behind atherosclerosis, researchers often use animal models, such as mice fed a high-fat diet to induce plaque formation. Professor Ziad Mallat and his team at the victor Phillip Dahdaleh heart and Lung Research Institute explored a different approach,examining the impact of spreading the same amount of high-fat food over the mice’s lifespans.
“When I asked my group and a number of people who are experts in atherosclerosis, no one could tell me what the result would be,” said Professor Mallat, a British Heart Foundation Professor of cardiovascular Medicine. “Actually, what we found was that an intermittent high fat diet starting while the mice were still young — one week on, a few weeks off, another week on, and so on — was the worst option in terms of atherosclerosis risk.”
The team then analyzed data from the Cardiovascular risk in Young finns Study, a long-term study tracking cardiovascular risk from childhood to adulthood. Participants underwent ultrasound scans of their carotid arteries around ages 30 and 50.
The analysis revealed that participants with high cholesterol levels as children tended to have the most significant plaque buildup, confirming the findings from the mouse studies.
“What this means is that we shouldn’t leave it until later in life before we start to look at our cholesterol levels,” Professor Mallat said. “Atherosclerosis can potentially be prevented by lowering cholesterol levels,but we clearly need to start thinking about this much earlier on in life than we previously thought.”
The mouse studies indicated that fluctuating cholesterol levels were notably damaging. Professor Mallat suggests this could explain why some individuals who inconsistently take statins remain at higher risk of heart attack.
“If you stop and start your statin treatment, your body is being exposed to a yo-yo of cholesterol, which it doesn’t like, and it seems this interferes with your body’s ability to prevent the build-up of plaques,” he added.
The damage may stem from cholesterol’s effect on resident arterial macrophages,immune cells in the arteries that clear damaged cells and lipids,including cholesterol,preventing plaque buildup. High and fluctuating cholesterol levels altered these macrophages, making them detrimental and accelerating atherosclerosis.
What’s next
Future research will focus on developing targeted therapies to stabilize cholesterol levels early in life and improve the function of arterial macrophages, potentially reducing the long-term risk of atherosclerosis and heart disease.