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Tag: "muscle" at biology news

Math that powers spam filters used to understand how brain learns to move our muscles

... more or less predictable “guesstimates” of human muscle movements to explain how the brain draws on both w...o walk or stroke patients re-connecting brain-body muscle links. In their report this week in Nature Neuroscience, the team says their new tool could make...

Researchers reveal structure of protein altered in autism

...otransmission between nerves and between nerve and muscle – for the past 30 years. They began studying the neuroligins because of the similarity in structure and amino acid sequence with acetylcholinesterase....

UI anthropologist, colleagues discover remains of earliest giant panda

...by wear patterns recorded on teeth and specialized muscle markings, indicating heavy chewing, on the skull. The new find, made about 18 months ago in a south China karst (limestone) cave by Chinese researchers and co-authors Changzhu Jin and Jinyi Liu of the Chinese Academy of Sciences, shows that the ba...

Focused ultrasound relieves fibroid symptoms in women

...on. Uterine fibroids are benign growths of the muscle inside the uterus. According to the National Institutes of Health, at least 25 percent of women in the United States age 25 to 50 suffer from symptomatic uterine fibroids. Fibroid symptoms can include excessive menstrual bleeding, enlarged uterine si...

Gene expression patterns predict rapid decline in idiopathic pulmonary fibrosis patients

...roliferation and genes from fibroblasts and smooth muscle cells. According to Naftali Kaminski, M.D., director of the Simmons Center and director of the Lung Translational Genomics Center, division of pulmonary, allergy and critical care medicine, University of Pittsburgh School of Medicine, these findi...

Human stem cell treatment restores motor function in paralyzed rats

...o irreversible spasticity and rigidity, or loss of muscle control, in the lower limbs, even though the spina...by a suppression of spastic movements and improved muscle tone, was shown in 40 to 50 percent of the animals tested. A post-mortem study of those animals sho...

Salk scientists hammer out a pathway that promotes muscle cell survival in mice

...that pumps up a cell’s ability to maintain healthy muscle and restores normal muscle function in genetically engineered mice with weak muscles. The study, published online in Nature Med...

Newborn neurons like to hang with the 'in' crowd

...w neurons mature over time they get emboldened and muscle out the old guys. "Adding new neurons could be a very problematic process if newborn cells would make connections all over the place," explains Fred H. Gage, Ph.D., a professor in the Gene Expression Laboratory and the Vi and John Adler Chair for Res...

Dinosaur hearing, listening to muscle noise, quieter cubicles

...ubicles" How can sound waves diagnose and monitor muscle activity" These and other questions will be addre...u can hear the sound of the masseter muscle--a jaw muscle used in chewing food-by propping your head (ear down) in the palm of your hand. The low rumbling co...

Fused nasal bones helped tyrannosaurids dismember prey

...t's with conservative estimates of the creature's muscle force, says Snively. "We kept the muscle numbers down because we thought they couldn't possibly be that powerful, but Tyrrell museum colleagu...

Switching genes to overdrive improves muscular dystrophy symptoms in mice

... laboratory study that revving up a crucial set of muscle genes counteracts the damage caused by a form of m...muscular dystrophy, slowing the disease-associated muscle wasting. The authors caution that they have not yet found a way to tweak the switch, known as PGC-1a...

UCLA study uncovers clues for why Graves' disease attacks the eyes

...at may explain why Graves?disease (GD) attacks the muscle tissue behind the eyes, often causing them to bulge painfully from their sockets, as in the late actor Marty Feldman. Scientists at UCLA’s Jules Stein Eye Institute and Harbor-UCLA Medical Center discovered defects in the infection-fighting T-cells ...

Leeches ferry infection among newts

...p into a large area of swollen muscle. The swollen muscle contains many spores (also called spherules), each... because this particular parasite lodges itself in muscle tissue instead of blood. A leech would have to be feeding right on top of a newt's infected muscle i...

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

...ray vision ?you'll be able to see through skin and muscle and watch a skeleton move in 3-D," said Elizabeth Brainerd, the Brown University biology professor overseeing development of the new system. "Imagine animated X-ray movies of flying bats or flexing knees. It's very cool technology that is also very i...

Heart failure: Intervention possibilities from imaging programmed cell loss

...d delay the development of cardiomyopathy or heart muscle disease," noted Hofstra. He indicated that additio... said Hofstra. "Our results indicate that heart muscle cell death is an active and ongoing process in heart failure, and that annexin imaging could possibl...

BMI not accurate indicator of body fat

...that BMI does not distinguish between body fat and muscle mass, said Ode. "A previous study of NFL footba...not obese. Many athletes have huge BMIs because of muscle mass, but in many cases are not fat." The answer, said Pivarnik, is instead of having one cutoff ...

Out-of-body experiences may be caused by arousal system disturbances in brain

...eir life. During a medical crisis, Nelson said muscle paralysis combined with an out-of-body experience could show many of the same prominent features of a near death experience. Near death experiences are responses to a life-threatening crisis, and are characterized by a combination of disassociation f...

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

Female stem cells derived from muscle have a greater ability to regenerate skeletal muscle tissue than male cells, according to a study at Children’s Hospital of Pittsburgh of UPMC. The stud...

Power-boosting signal in muscle declines with age

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

Nanotextured implant materials: blending in, not fighting back

...dothelium, surrounded by a thicker layer of smooth muscle cells that make up the arterial wall. The proteins...ffectively camouflaging them and preventing smooth muscle cells from overgrowing the implants. Once the endothelial cells form a single, solid layer, they sto...

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