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leg in Biological News

UT to develop fracture putty for traumatic leg injuries

... bio-compatible compound designed to mend serious leg fractures. The researchers have been awarded ... could be up to $7.9 million. Serious leg injuries typically are repaired with bone grafts. ... medicine. It could give people with serious leg injuries an opportunity to regain full use of ...

Pivotal national trial uses newest interventional radiology treatment to bust blood clots in legs

... with DVT (the formation of a blood clot in a leg vein). PTS, a common irreversible complication of ... to the veins, resulting in debilitating chronic leg pain, swelling, fatigue and/or skin ulcers. About ... of a blood clot, known as a thrombus, in a deep leg vein. This can be a very serious condition that ...

At risk for peripheral arterial disease? Simple quiz provides key so you can circulate better

... (twice as likely to develop clogged leg arteries), seniors (12-20 percent develop PAD) ... flow to the legs. Since plaque blocks the smaller leg arteries first, PAD is considered a red flag for ... in this country) and stroke. Symptomssuch as leg pain while walking, numbness and tingling in the ...

Improved foam for varicose veins found to be safe in preliminary results from phase II trial

... University Baptist Medical Center. Veins in the leg have valves that are designed to prevent blood ... compressed in the groin to trap the foam in the leg and additional foam is injected. The patients leg is then put in a compression dressing and ...

21st-century pack mule: MIT's 'exoskeleton' lightens the load

... Eventually Herr hopes to create assistive leg devices that can be useful for anyone. Herr said he envisions leg exoskeletons that could help people run without ... now, people won't go to bike racks--they'll go to leg racks, he said. Exoskeleton devices could ...

Herr receives Heinz Award for Technology, the Economy and Employment

... amplifying function. While there was a time when leg prostheses hampered a wearers mobility, Dr. Herrs breakthrough innovations are enabling leg amputees to walk at higher speeds with greater ... energy. He predicts that in five to 10 years, leg amputees will be able to run faster and move with ...

Knee injuries may start with strain on the brain, not the muscles

... fallout. In a related paper, McLean's group again tested the single leg landings of 13 men and 13 women after working the legs to fatigue. While ... significant changes in lower limb mechanics during unanticipated single leg landings. Again, the findings point to the brain, McLean says. During ...

Limping rat provides sciatica insights

... such as numbness or pain from the lower back to the feet, radiating leg pain or difficulty in controlling the leg. It is often caused by ... how the animals responded to the pressure of walking with an affected leg and how they shifted their weight in response. "Following surgery, we ...

Grouping muscles to make controlling limbs easier

... paralyzed. The researchers used a model of the muscles in a frog's hind leg to perform a computational analysis that, when run as a simulation, shows ... the researchers chose the muscle combinations that let the frog's hind leg do what it wants to do most effectively. The simulation showed that by ...

Superglue from the sea

... worm glue would not be used to repair large fractures such as major leg and arm bones, for which rods, pins and screws now are used. But Stewart ... To test the strength of the synthetic glue, Stewart cut cow leg bones from grocery stores in cubes measuring 0.4 inches on a side, sanded ...

So-called 'sandfish' could help materials handling and process technology specialists

... sand provides resistance," says Baumgartner."But we found out that its leg movements are very well coordinated with the wriggling of its body." It ... less dense sand to its rightthat allows the animal to move its front right leg forward with little effort.Conversely, when the sandfish moves its upper ...

Coating improves electrical stimulation therapy used for Parkinson's, depression, chronic pain

... shows promise for diseases ranging from epilepsy to depression to chronic leg and back pain. By implanting electronic nerve stimulators, doctors ... a virtual world with mere mind power. For individuals who lose an arm or leg and rely on prosthetics, implanted stimulators offer promise in restoring ...

Synthetic molecules emulate enzyme behavior for the first time

... of the Radio City Rockettes dance line. The first Rockette kicks her leg in one direction, and the rest of them kick the same leg in the same direction -- all the way down the line. A change in shape that ...

Dry Tortugas show positive trends: Protected area slowly rebounding

... REEF (Reef Educational and Environmental Foundation) Mission Dates leg 1: May 12-21 leg 2: May 31-June 9 Overall Totals from 1999 2008 Number of Missions: ...

Toad research could leapfrog to new muscle model

... she said. Think of walking down a flight of steps and missing a step. leg muscles instantly become less stiff to afford better shock absorption. ... releasing energy during the ankle gait cycle. "Energy is stored as the leg and body rolls over the ankle, and then this energy is released in a ...

Darwin was wrong about the wild origin of the chicken

... at Uppsala University and Durham University in England. The yellow leg color is a result of fodder: the more yellow carotenoids there are in the ... of significance in explaining the pink color of the flamingo, the yellow leg color of many birds of prey, and the reddish meat of the salmon. These ...

Reducing risk of hospitalization in the elderly

... function in a number of ways including walking speed, their ability to stand up from a chair repeatedly, the strength of their grip and their leg strength. By the end of the study more than 55 percent of the participants had experienced one or more hospitalizations. Those most likely to end up ...

Protein that promotes cancer cell growth identified

... on the paper. "Although Caspase-8 is involved in apoptosis, it is rarely deleted or silenced in tumors, suggesting that it was giving cancer cells a leg up in some other way. Our studies suggest that Caspase-8 does so by activating the MAPK pathway through Src." Using immuno-blot assays, the ...

Stem cell surprise for tissue regeneration

... at whether the same was true upon injury, after which the repair process requires muscle stem cells to make new muscles. For this, they injured the leg muscles between the knee and ankle. They were again surprised that these muscle stem cells, without the two key embryonic muscle stem cell genes, ...

Troubled waters: Low Apalachicola River flow may hurt gulf fisheries

... environmental considerations of managed flow reductions in the Apalachicola-Chattahoochee-Flint (ACF) river system. The Apalachicola River, the final leg of the river system, has been the focus of a nearly 20-year legal battle between Florida, Georgia and Alabama, known as the Tri-State Water War. At ...

Conservationists seek to identify prime stopover sites for migrating birds

... "Conservation of migratory birds requires the protection of a network of stopover sites where birds can rest and put on weight for the next leg of the journey," says John Waud, professor of environmental science at RIT and lead scientist on the study. "These sites have to be rich in food and ...

Field Museum paleontologist leads study on two new dinosaurs from China

... yet described, rivaling the Late Cretaceous ornithomimosaur Gallimimus in size. Bone microstructure analysis on a cross section of one of the lower leg bones of the principal specimen by co-author Gregory Erickson of Florida State University reveals that the holotype individual was not yet fully ...

Oral contraceptives impair muscle gains in young women

... per week for ten weeks under the supervision of exercise physiologists. They performed a variety of exercises to include chest press, lat pull down, leg extension, triceps extension, arm curl and abdominal crunch. Exercise was done using standard exercise machines and each volunteer performed three ...

Oral contraceptives impair muscle gains in young women

... per week for ten weeks under the supervision of exercise physiologists. They performed a variety of exercises to include chest press, lat pull down, leg extension, triceps extension, arm curl and abdominal crunch. Exercise was done using standard exercise machines and each volunteer performed three ...

Montana State grad's work helps diagnose skin cancer without a biopsy

... he said the experience he's gained from having a hand in every aspect of the project -- from theory and design to machining parts -- will give him a leg up in searching for an engineering job after he leaves MSU. "This project has really allowed me to see how things come together from multiple ...

Optimum running speed is stride toward understanding human body form

... miles per hour for females in a group of nine experienced amateur runners. Much of the gender difference may be due to variations in body size and leg length, which have been shown to affect running mechanics, Steudel says. In general, the larger and taller runners had faster optimum speeds. ...

Biomedical engineering student recognized as IEEE's 'New Face of Engineering'

... The contractions of calf muscles help in propelling deoxygenated blood back to the heart against gravity. External stimulation of the lower leg musculature could help enhance venous return and cardiovascular recirculation of oxygen-rich blood. Madhavan was born in a village in Tamil Nadu, ...

Promising 3-year data: Saving limbs with drug-eluting stents

... size (3 millimeters) and are more prone to reclog than larger vessels. The use of drug-eluting stents in the tiny infrapopliteal arteries of the leg may significantly impact their care," said Dimitris Karnabatidis, M.D., assistant professor of interventional radiology at Patras University Hospital ...

Spun-sugar fibers spawn sweet technique for nerve repair

... said. The new approach represents a potential alternative to the conventional surgical treatment, which uses a nerve "autograft" taken from the leg or other part of the body to repair the injured nerves. Researchers are trying to develop artificial scaffolds to replace the autografts because ...

Crab claws pack strengthening bromide-rich biomaterial

... are not tipped with this material. But their legs are, he said. "The next time you are eating a Dungeness crab, notice that the sharp tip of the leg is a cap of translucent material that is very different from the rest of the crab," he said. "Notice how difficult it is to break the tip, even ...

Sports technology for para-athletes: Closing the gap

... sprinter to deliver the same level of performance as an able-bodied athlete but at a lower metabolic cost. The other article, "Lower Extremity leg Amputation: an advantage in running?" , authored by Lechler and Lilja describes the clinical view of fitting an amputee with a prosthetic leg. ...

Cell 'anchors' required to prevent muscular dystrophy

... rather than in the whole animal. "This development let us look right away at what happened in adult mice when we produced ankyrin loss only in leg muscle," Ayalon said. Next, they studied what happened when they turned off ankyrin-G (ankG), a different anchor protein, in muscle cells. They ...

Over 1,000 species discovered in the Greater Mekong in past decade

... by science between 1997 and 2007 which averages two new species a week. This includes the world's largest huntsman spider, with a foot-long leg span and the Annamite Striped Rabbit, one of several new mammal species found here. New mammal discoveries are a rarity in modern science. While ...

Step out for PAD

... that regular, moderate exercise can go a long way to relieving the symptoms of PAD, and by some unexpected mechanisms. When a major artery in the leg becomes blocked, the body naturally seeks another route for the blood to pass through by expanding and multiplying the surrounding smaller blood ...

Single adult stem cell can self renew, repair tissue damage in live mammal

... or loss of function from aging and disuse. In other experiments, the researchers transplanted between 10 and 500 luciferase-tagged MuSC into the leg muscles of mice. These cells also proliferated and engrafted, forming new myofibers and fusing with injured fibers. Unlike tumor cells, the ...

Tool helps identify gene function in soybeans

... COLUMBIA, Mo. In the race for bioengineered crops, sequencing the genome could be considered the first leg in a multi-leg relay. Once the sequence is complete, the baton is passed forward to researchers to identify genes' functions. A draft sequence of the ...

UCSB study finds physical strength, fighting ability revealed in human faces

... a general campus population, a hunter-horticulturalist group in Bolivia, or a group of herder-horticulturalists living in the Argentinian Andes. leg strength was measured along with upper body strength in both the United States and Bolivian populations, but the results showed that perceptions of ...

New CU-Boulder study shows diversity decreases chances of parasitic disease

... the toad tadpoles were raised in tanks with the parasitic trematodes -- tiny worms whose larvae burrow into tadpole limb regions and disrupt normal leg development -- 40 percent of the emerging frogs became deformed, said CU-Boulder Assistant Professor Pieter Johnson. But when the toad tadpoles were ...

Farmers can spot lame sheep, but fail to prevent footrot spread

... More than 90% of the study participants correctly identified mildly lame sheep, that is, those with an uneven posture, a shorter stride in one leg or a slight nodding of the head as they moved. However, the treatment of lame sheep varied considerably between farmers. Nearly 20% said they would ...

Hidden infections crucial to understanding, controlling disease outbreaks

... dynamics of cholera outbreaks. It's surprisingly hard to get really sick with cholera, an intestinal infection that causes diarrhea, vomiting, and leg cramps. The bacterium that causes the illness, Vibrio cholerae, lives in surface waters, and in areas where sanitation is poor, food and water are ...
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