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Tag: "skeletal" at biology news

Ice Age extinction claimed highly carnivorous Alaskan wolves

...tudy of the morphology, or form, of the fossilized skeletal remains. This multifaceted approach allowed the researchers to trace the ancient wolves’ genetic relationships with modern-day wolves, as well as understand their role in the ancient ecosystem. “Being able to say all of those things—having a comp...

Switching genes to overdrive improves muscular dystrophy symptoms in mice

...ntial improvement in the structure and function of skeletal muscle in this disease model,?the scientists wrote....

Bones in motion: Brown scientists to create new 3-D X-ray system

... and detail. Researchers will be able to track 3-D skeletal movements with 0.1 millimeter accuracy and see the...rd Hospital in Detroit and on original research in skeletal imaging at Brown, including a trailblazing technique developed by Gatesy that uses animation softwar...

Blood sugar's manufacture limited by building blocks' supply

...er parts of the body where it is active, namely in skeletal and heart muscle. ...

Researchers identify gene involved in dog size

...e in dogs, we are apt to learn something about how skeletal body size is genetically programmed in humans. We ...r dogs—a breed that has an unusually wide range of skeletal size—as well as several small and large canine breeds. This analysis revealed that differences in do...

The sturdier sex? -- Study by Pittsburgh scientists finds female stem cells work better

...d from muscle have a greater ability to regenerate skeletal muscle tissue than male cells, according to a stud...n of female stem cells led to significantly better skeletal muscle regeneration," said Dr. Huard, also the deputy director of the McGowan Institute of Regenerat...

Power-boosting signal in muscle declines with age

...-activated protein kinase (AMPK) slows down in the skeletal muscle of 2-year-old rats relative to 3-month-old ...ef regulator of whole-body energy balance, AMPK in skeletal muscle stimulates the oxidation of fatty acids and the production, or biogenesis, of power-producing...

'Marathon mice' elucidate little-known muscle type

...easing activity of the gene known as PGC-1â in the skeletal muscles of mice caused them to become crowded with...type or the other, Spiegelman said. However, adult skeletal muscles also contain fibers with an abundance of a fourth MHC, type IIX, about which much less is kn...

Researcher to study astronaut bone loss for space biology agency

...e weightless environment of space –?a state called skeletal unloading –?lose bone because, in the absence of g...roach. In the first part, he will study a model of skeletal loading and unloading in human bone cell culture. In the second part, skeletally unloaded rats will ...

Researchers urge monitoring of bone health during chemotherapy

... could do even better if we paid more attention to skeletal health," says lead author Angela Hirbe, an M.D./Ph.D. student in Weilbaecher's lab. "Strengthening the skeleton would not only help prevent osteoporosis and fractures but also might give patients a survival advantage." In the laboratory mice studied...

'Terror bird' arrived in North America before land bridge, study finds

... Florida by about 40 bone fragments from different skeletal regions. MacFadden's team also analyzed six specimens from the Santa Fe River in north Central Florida. "We found that the Titanis fossils were 2 million years old and not 10,000 years old as had been suggested," MacFadden said. "This also shows th...

Engineering the heart piece by piece

... cells taken from elsewhere in the body ?including skeletal muscles ?have been used in early clinical trials, but results are mixed. ...

Scientists identify a candidate gene for osteoporosis

... in regulating BMD, Mohan's team characterized the skeletal phenotype of mice with and without the DARC gene. The DARC -knockout mice exhibited increased BMD and lower bone resorption compared to mice with the DARC gene, supporting the predicted role of DARC in hastening bone resorption. They also sho...

How fish mend a broken heart

...fied within most mammalian organs, including skin, skeletal muscle, brain, and heart, these cells vary widely in frequency and the ability to regenerate damaged or lost tissue, they said. In most mammalian organs, progenitor cells can restore cells lost in the course of normal organ function or after minor in...

Study shows antibiotic-resistant bacteria responsible for increase in muscle infections

...c. Pyomyositis is an acute bacterial infection of skeletal muscle that produces an abscess within the muscle. Myositis is also a muscle infection, but does not form an abscess. The study authors investigated the 45 cases of pyomyositis or myositis in otherwise healthy children who were hospitalized at Texas ...

Finding an answer to Darwin's Dilemma

...als, and ultimately to the Cambrian "explosion" of skeletal animals 542 million years ago. ...

Experimental cancer drugs counter muscle deterioration seen in muscular dystrophy

...y under clinical study for breast cancer, restored skeletal muscle mass and prevented the impaired function ch...rized by progressive weakness and deterioration of skeletal muscles. All are inherited, caused by a mutation in one of a group of genes responsible for maintain...

Cellular traffic backups implicated in skeletal malformations

...he identification of a mutation that causes severe skeletal deformities in zebrafish by shutting down a critic...ed and survived to nine days, albeit with striking skeletal abnormalities ?craniofacial defects, kinked fins and shortened body. The pathway affected by the c...

Dragonfly's metabolic disease provides clues about human obesity

...th metabolic disease tend to accumulate fat around skeletal muscle tissue. Marden and Schilder's experiments also found the hemolymph carbohydrate concentrations in parasite-infected dragonflies to be about double those of healthy dragonflies, and found insulin to have little effect on those concentratio...

Researchers discover new gene responsible for brittle bone disease

...ge, international research team in the analysis of skeletal defects caused by lack of effective function in th...l Research at the Medical Center characterized the skeletal abnormalities in the genetically engineered mice and carried out studies of bone cells from the mice...

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