Certain types of cells from fat tissue can repair skull defects in mice, say researchers at Stanford University Medical Center. Because this type of healing process does not depend on the use of embryonic stem cells or gene therapy, it may one day allow doctors to use a patient’s own unmodified cells as building blocks to heal fractures, replace joints, treat osteoporosis or correct defects in bone growth or healing.
"These cells are from you, for you and by you," said Lucile Packard Children’s Hospital pediatric craniofacial surgeon Michael Longaker, MD. "They are not foreign and they don’t express foreign genes. To our knowledge, this is the first time these cells have ever been shown to have a therapeutic effect." Longaker, a professor of surgery at Stanford’s School of Medicine, is the senior author of the research, published in the May issue of Nature Biotechnology.
"Fat is a great natural resource," he added. "These cells are not only easily harvested, they grow quickly in the laboratory." In contrast, bone marrow cells and bone cells, both of which can also repair skull damage, grow very slowly outside of the body.
Robert Dicks | Stanford University Medical C.
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17.11.2017 | University of North Carolina Health Care
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17.11.2017 | Max-Planck-Institut für chemische Ökologie
The formation of stars in distant galaxies is still largely unexplored. For the first time, astron-omers at the University of Geneva have now been able to closely observe a star system six billion light-years away. In doing so, they are confirming earlier simulations made by the University of Zurich. One special effect is made possible by the multiple reflections of images that run through the cosmos like a snake.
Today, astronomers have a pretty accurate idea of how stars were formed in the recent cosmic past. But do these laws also apply to older galaxies? For around a...
Just because someone is smart and well-motivated doesn't mean he or she can learn the visual skills needed to excel at tasks like matching fingerprints, interpreting medical X-rays, keeping track of aircraft on radar displays or forensic face matching.
That is the implication of a new study which shows for the first time that there is a broad range of differences in people's visual ability and that these...
Computer Tomography (CT) is a standard procedure in hospitals, but so far, the technology has not been suitable for imaging extremely small objects. In PNAS, a team from the Technical University of Munich (TUM) describes a Nano-CT device that creates three-dimensional x-ray images at resolutions up to 100 nanometers. The first test application: Together with colleagues from the University of Kassel and Helmholtz-Zentrum Geesthacht the researchers analyzed the locomotory system of a velvet worm.
During a CT analysis, the object under investigation is x-rayed and a detector measures the respective amount of radiation absorbed from various angles....
The quantum world is fragile; error correction codes are needed to protect the information stored in a quantum object from the deteriorating effects of noise. Quantum physicists in Innsbruck have developed a protocol to pass quantum information between differently encoded building blocks of a future quantum computer, such as processors and memories. Scientists may use this protocol in the future to build a data bus for quantum computers. The researchers have published their work in the journal Nature Communications.
Future quantum computers will be able to solve problems where conventional computers fail today. We are still far away from any large-scale implementation,...
Pillared graphene would transfer heat better if the theoretical material had a few asymmetric junctions that caused wrinkles, according to Rice University...
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