Have you ever wondered how those numbers on your cholesterol test can quietly turn into a warning sign?
When too much “bad” cholesterol circulates in your blood, fatty deposits start to build up in the arteries—slowly, silently.
Even when you eat right and stay active, it can sometimes feel like you’re fighting an uphill battle.
But what if there was a completely new way to tackle the problem, one that didn’t depend on the same old medicines and their known side effects?
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A new approach to cholesterol control
Scientists from the University of Barcelona and the University of Oregon have developed a groundbreaking way to lower LDL cholesterol—the type often called “bad” cholesterol.
Their method focuses on a gene known as PCSK9, which regulates how many receptors the body has to clear cholesterol from the bloodstream.
By reducing the activity of this gene, more receptors stay active, allowing cells to absorb more cholesterol and preventing dangerous buildup inside the arteries.
The DNA hairpin method
Instead of using statins, which block the body’s cholesterol production, or antibodies that inhibit the PCSK9 protein, the researchers created tiny DNA molecules called polypurine hairpins.
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These single-stranded molecules can attach directly to the PCSK9 gene and “silence” it—essentially turning down its activity.
Two of these molecules, named HpE9 and HpE12, were designed to target specific sections of the gene.
In laboratory studies using human liver cells and mice carrying the human PCSK9 gene, the results were striking.
Levels of the PCSK9 messenger RNA dropped by more than 70%, and the amount of PCSK9 protein fell by almost 90%. In mice, a single injection reduced total cholesterol by nearly half within just a few days.
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Toward statin-free treatment
This DNA-based technique offers hope for a future where cholesterol can be managed safely and effectively—without the muscle pain and other side effects sometimes linked to statin therapy.
Because these DNA molecules are stable, low-cost, and non-immunogenic, they could become a practical new option for people who cannot tolerate existing medications.
Researchers see the discovery as a major step toward more personalized and less invasive cholesterol treatments—an approach that works with the body’s natural systems rather than against them.
The article is based on information from ScienceDirect
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This article is made and published by Mie Hermansen, who may have used AI in the preparation.