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Tag: "repair" at biology news

Stem cell therapy successfully treats heart attack in animals

...oal is to develop a widely applicable treatment to repair and reverse the damage done to heart muscle that has been infarcted, or destroyed, after losing its blood supply," says cardiologist Joshua Hare, M.D., professor of medicine at The Johns Hopkins University School of Medicine and its Heart Institute, ...

Combination therapy leads to partial recovery from spinal cord injury in rats

...ested that remyelination is a possible approach to repair the spinal cord, but this is the first study to show unequivocally that it works," says Dr. Whittemore. "It is a proof of principle." Although the finding is promising, much work remains before such a technique could be used in humans. The study appe...

New method shows it is possible to grow bone for grafts within a patient's body

...one reliably in one part of the body and use it to repair damaged bone at a different location. The researc... approach currently used by orthopedic surgeons to repair serious bone breaks is to remove small pieces of bone from a patient's rib or hip and fuse them to t...

Using nanoparticles, in vivo gene therapy activates brain stem cells

...s. In addition to delivering therapeutic genes to repair malfunctioning brain cells, the nanoparticles also...he future, this technology may make it possible to repair neurological damage caused by disease, trauma or stroke," said Earl J. Bergey, Ph.D., co-author and ...

Researchers grow stem cells from human skin

...ells should provide a valuable resource for tissue repair and for organs as well," said Anthony Atala, M.D., director of the Wake Forest Institute for Regenerative Medicine and senior researcher on the project. "Because these cells are taken from a patient's own skin, there would not be problems with organ ...

Scalpel-free surgery could reduce risk of HIV and hepatitis exposure for health care workers

...d skin clips or glue instead of sewing to close or repair wounds. Previous studies have shown that health care workers are injured in about 7 percent of operations. As many as 87 percent of surgeons will receive an injury that breaks the skin -- thus allowing for possible disease transmission - at some poi...

Major advance made on DNA structure

...o, apparently plays a key role in DNA's ability to repair itself ?a vital biological function. A more fundamental understanding of DNA structure and its relationship to genetic sequences, researchers say, helps set the stage for applied advances in biology, biomedicine, genetic engineering, nanotechnology ...

New complete muscle grown in the lab

... "The idea is that this hopefully will be used to repair or replace damaged muscle tissue when needed," Levenberg says. In the near future, Levenberg explains, a simple muscle biopsy might provide the "seed" cells for a person's own engineered replacement muscle. For example, the lab-grown muscles could r...

Most common lung cancers may begin in newly discovered cells

...s that are resistant to damage and are involved in repair and maintenance of tissue. They have proposed that these junctions might be a stem cell niche. Bender Kim and her co-authors first isolated the stem cells, which they named bronchioalveolar stem cells (BASCs), from the earliest stage of the mouse tu...

Investigating 'brain shrinkage' in alcoholics

...role in cognitive deficits as well as recovery and repair of the brain. Together we can develop strategies for public education and new approaches to therapy in people who use and abuse alcohol. People who abuse alcohol," he added, "should be informed that some of the brain damage could be reversed." ...

Chemical 'band-aid' prevents heart failure in mice with muscular dystrophy

...he manufacturing and pharmaceutical industries can repair damage to cardiac muscle cell membranes and preven... study to demonstrate a new, promising approach to repair the damage. The study's authors emphasize, however, that several years of additional animal research...

Why do aneurysms form? New studies suggest leading role for white blood cells

...such a rupture. And another 36,000 have surgery to repair or replace the swelling section of aorta before time runs out. But despite the deadly toll of this condition, called abdominal aortic aneurysm or AAA ("triple A"), experts know very little about why it happens. Now, a pair of papers from researchers...

AACR Favors 'full spectrum of stem cell research biology'

...dults may reveal the body's innate maintenance and repair mechanisms. # Embryonic stem cells have the ability to transform into the cells of every major organ system in the human body. If this characteristic can be controlled, then medical researchers could determine the signals that direct the development...

UQ researcher tracking key to healing the brain

...evolutionise medical science. Serving as a sort of repair system for the body, they can theoretically divide..., a biotech company focused on using stem cells to repair the brain, before coming to Australia to do his PhD under Professor Perry Bartlett at the Walter and...

Muscle repair: Making a good system better, faster; implications for aging, disease

Skeletal muscles naturally repair themselves very efficiently after injury. But when...uma can be stymied. Furthermore, as we age, muscle repair slows noticeably, and in Duchenne Muscular Dystrophy and other degenerative muscle diseases, normal ...

Change in gene may be underlying molecular defect in some colorectal cancers

Inactivation of a DNA repair gene may be an early step in the development of sp...cancers in unclear. In colorectal cancer, the DNA repair gene O 6 -methylguanine-DNA methyltransferase (MGMT) is often methylated--that is, the gene's promot...

Stem cells bring fast direct improvement, without differentiation, in acute renal failure

...ell as potential late phase contributions to organ repair via differentiation of stem cells into cells that have been destroyed in ARF," the study noted. ...

Gradient guides nerve growth down spinal cord

...about how to grow new connections among neurons to repair or replace damaged nerves. Unlike many other body ...d axons in the adult spinal cord cannot adequately repair themselves. An estimated 250,000 people in the United States suffer from permanent spinal cord injur...

Stressed cells spark DNA repair missteps and speed evolution

...senberg. However, when the process goes wrong, the repair process introduces errors into the DNA. When gra...is mechanism of increased mutation at sites of DNA repair occurs only in the cells under stress. "Even if you get a break in a cell, it won't process it in a ...

Surgical Robot 'Scrubs In' At UNC, May Be More Precise Than Conventional Surgery

...zed brain and a glowing track record in helping to repair heart valves, remove cancerous prostates, bypass blocked coronary arteries and perform gastric bypass operations for morbid obesity. The new arrival is a robotic machine, the da Vinci Surgical System, manufactured by Intuitive Surgical. UNC currentl...

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