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New Stents May Prevent Future Complications

Jan. 26, 2004 — A new frame of coated stents may help repair clogged supply routes and keep them running smoothly longer by invigorating the body’s claim recuperating powers.

Stents are metal mesh-like tubular structures that are surgically embedded to prop open blocked courses and restore healthy blood flow to the heart in people with coronary heart disease. But a common problem with stents is that the treated supply routes as often as possible become re-clogged because of a build-up of scar tissue, a condition known as restenosis, at the location or other complications.

As of late researchers have started developing modern, drug-coated stents to help diminish the build-up of scar tissue and anticipate re-blocking of the courses. The first of these drug-coated stents was affirmed for utilize within the U.S. in 2003.

But a study appears that an test modern form of a stent coated with antibodies may offer an elective strategy to anticipate unsafe restenosis by harnessing the body’s possess normal defenses.

Building an Improved Stent

Researchers say the drug-coated stent right now in use prevents restenosis by stopping the growth of cells inside the stent. But this new form of stent is coated with specialized antibodies that work with the safe framework to pull in the growth of sound cells and avoid future issues.

The comes about of preliminary laboratory and animal testing of the unused stent were displayed this week at the 16th Annual Universal Symposium on Endovascular Therapy in Miami Shoreline, Fla.

Researchers found antibody-coated stents were able to attract and bind solid endothelial begetter cells (EPCs) in live pigs that gotten the stents experimentally.

EPCs are cells that line the inner surface of blood vessels and can ended up damaged as a result of heart malady and narrowing of the arteries. This damage comes about in irregular blood stream through courses. By restoring a solid layer of these cells in the ailing course, researchers say the antibody-coated stents may help decrease the hazard of restenosis.

Analysts say it’s the primary time a method’s been shown to rapidly shape a thin layer of these protective cells on a stented blood vessel surface. Assist ponders are required in case this layer can help anticipate the hazard of restenosis in people.

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