Tag: "knee" at biology news
Mouse model of osteoarthritis
... mice), there were clear structural changes in the knee
joints, and the articular cartilage was thinner and showed signs of wearing away. By 9 months old, the knees of the mutant mice largely lacked articular cartilage. All told, the joints in these mutant mice closely resembled those in people with osteo...
NSF gives 'teeth' to biomaterials research
.... "As we age, we require more maintenance -- a new knee
or hip, perhaps. Who knows what we'll be able to make in the future?"...
How running made us human
...ing running. Larger surface areas in the hip, knee
and ankle joints, for improved shock absorption during running by spreading out the forces. The arrangement of bones in the human foot creates a stable or stiff arch that makes the whole foot more rigid, so the human runner can push off the grou...
Injectable gel could speed repair of torn cartilage
...cted into areas where cartilage is torn, such as a knee
joint, the material hardens into a gel upon exposu...uries, as during sports, and is most common in the knee
joint, but the condition also can occur as a result of normal daily activity. Conventional treatment...
A key signaling molecule in osteoarthritis is identified
... cartilage chondrocytes (cartilage cells) of their knee
joints. "DDR2 is a signaling receptor on cell surfaces that binds to collagen fibrils outside the cells," explains Dr. Li. "The normal function of DDR2 is largely unknown. One report demonstrates that the lack of DDR2 results in dwarfism in mice, pro...
Women's health, tissue regeneration is focus of Illinois & Carle Hospital initiative
...ial and oral surgical repairs and in the repair of knee
damage caused by football and soccer injuries, or in conjunction with knee
and hip replacements. Researchers in recent years have begun to understand the complexity of the mic...
Study: Testing for joint substance in blood might improve diagnosis of osteoarthritis
...t enable doctors to diagnose osteoarthritis of the knee
and hip earlier or more accurately, a new study co...HA) between individuals with osteoarthritis of the knee
as shown on X rays and those without knee
or hip osteoarthritis," said study director Dr. Joanne M. ...
Chemical that triggers hibernation may protect muscles
...culoskeletal reconstructive surgery (e.g., a total knee
replacement)." They note that since the HWP group recovered to the same level of force as the group that was not exposed to hypoxia, the protective factors in the plasma of the hibernating woodchucks safeguarded the muscle quite optimally. One of the...
Walk slowly for weight loss, according to University of Colorado study
...er than 3 miles per hour reduce the loads on their knee
joints by up to 25 percent. "The message is that...show that brisk walking dramatically increases the knee
joint forces, which can lead to a variety of problems including joint injuries and arthritis, the re...
Arthritis: What Wnt wrong?
...ned joint tissue from patients who underwent total knee
replacement for rheumatoid arthritis (RA), osteoar...at were significantly upregulated in the arthritic knee
tissues. However, protein expression studies revealed that only Wnt-7b was produced in arthritic jo...
Gene therapy advance treats hemophilia in mouse models
...ophilia A, a condition in which even a bump on the knee
can cause serious internal bleeding in people. Researchers at the University of Iowa Roy J. and Lucille A. Carver College of Medicine improved a vector -- a vehicle that delivers gene therapy to cells -- in two ways to create a sustained, partial cor...
Diamonds are a doctor's best friend
...tional Orthopaedic Hospital (RNOH) with DLC-coated knee
implants for patients allergic to the metal used. ...ting for specific applications. An optimum DLC for knee
prostheses is not necessarily the same as one for lining an artificial artery, for instance. Indeed,...
Ossur captures Frost & Sullivan Technology of the Year Award for breakthrough RHEO KNEE
...ur has launched the first artificially intelligent knee
system having the ability to learn and adapt to it...ation of microprocessor-controlled, swing & stance knee
systems that incorporate artificial intelligence, giving the system the ability to learn how the use...
Ossur congratulates Hugh Herr on Popular Mechanics 2005 Breakthrough Leadership Award
...he Rheo Knee is the first artificially intelligent knee
system that has the ability to learn and adapt to ...dulating magnetic forces, effortless initiation of knee
flexion and a normalized pelvic position during pre-swing is better restored to the amputee. Inhere...
Study links low selenium levels with higher risk of osteoarthritis
...ugh selenium in their bodies face a higher risk of knee
osteoarthritis, a first-of-its-kind new study sugg...15 percent to 20 percent decrease in their risk of knee
osteoarthritis. Those who had less of the trace mineral than normal in their systems faced a higher ...
Sonography valuable in determining surgery in peroneal nerve injuries in the knee
Peroneal nerve injury in traumatic knee
dislocation is common, especially in high-speed co...uring contact sports and to indirect injury during knee
trauma," said the authors. Clinically, the nerve is usually inspected during reconstructive knee
Secrets of the sea yield stronger artificial bone
...re than 150,000 hip replacement and nearly 300,000 knee
replacements were performed in 2000, according to the National Center for Health Statistics. These numbers are expected to swell in the future as baby boomers age. Because of the pressing need for longer-lasting artificial bone, researchers like Toms...
Heparin prepared synthetically could replace animal-derived drug
...surgery, stent implantation, indwelling catheters, knee
and hip replacements, and deep vein thrombosis. The annual worldwide sales of heparin are estimated at $3 billion. "We have synthetically prepared heparin in quantities large enough for use in human medical treatments by engineering recently discover...
Early human ancestors walked on the wild side
... have evidence that they were interesting from the knee
down as well."...
UCSD project takes fish collection into the digital age
...cal technology used to image brain tumors and torn knee
ligaments is now taking the field of marine biology to a new dimension by allowing anyone with Internet access to examine fish as never before. Researchers at the University of California, San Diego's Keck Center for Functional Magnetic Resonance Ima...
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