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Tag: "stents" at biology news

Students invent protective pouch to enhance cell therapy

... used to keep clogged blood vessels open. Once the stents are in place, microcapsules filled with helpful cells are injected into the gap between the stents, where they become trapped within the nylon mesh. Blood flowing through the vessel should nourish the encapsulated cells and circulate the proteins, su...

Nanotextured implant materials: blending in, not fighting back

... experiments have focused on the materials used in stents ?those springy little cylinders that hold open onc...last more than five years, and up to 20 percent of stents need to be replaced because the artery walls thicken in and around them in a process known as resten...

Ultrathin films deliver DNA as possible gene therapy tool

...Public Health, Lynn has shown that DNA film-coated stents can successfully deliver a gene encoding a fluorescent protein into a rabbit's artery, demonstrating that the films can also work in the complex environment of living tissue. Lynn presented a summary of the work at the annual spring meeting of the A...

New study shows antibiotic may protect the heart

...rowing of a blood vessel. In coronary angioplasty, stents coated with rapamycin are implanted to reduce the ...l question will be whether or not rapamycin coated stents can be utilized in patients to favorably affect damaged heart muscle beyond the blockage causing a h...

Bare metal stents deliver gene therapy to heart vessels with less inflammation in animal studies

...equently treat heart disease patients now by using stents to expand partially blocked blood vessels and impr...er, new obstructions may gradually form within the stents themselves and dangerously narrow the passageway. A newer generation of stents releases drugs to cou...

Cells from amniotic fluid used to tissue-engineer a new trachea

...ng synthetic substances like Teflon, or implanting stents (in the hope that tissue would scar around the stents and form a tube), but with limited success. "These are all makeshift solutions, and they're fraught...

Nano-bumps could help repair clogged blood vessels

...rofessor of biomedical engineering at Purdue. The stents are small metal scaffolds that are inserted inside...se the endothelial cells to attach better to these stents without creating as much dangerous scar tissue." The researchers tested discs of titanium containin...

Rare surgery performed to remove pancreas, prevent diabetes

...e prior operations and several procedures to place stents in the pancreatic duct failed to provide relief. The pain of chronic pancreatitis is known to be constant and extremely debilitating. Facing a life of suffering from the condition, Stewart chose the alternative of total removal of the pancreas and of...

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