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Tag: "muscles" at biology news

Emory Study Tests Bone Marrow Stem Cells to Improve Circulation in Legs

...ividuals with PVD have decreased blood flow to the muscles ofthe legs, especially during exercise, which causes pain, aching,cramping or fatigue in the muscles of their legs when they walk. Thiscondition also is called " intermittent claudication ".The Emory t...

“Nano-scissors?laser shows precise surgical capability

...s that carry nerve impulses away from the cells to muscles or toother cells.“This tool opens up a new frontier for biologists studying nerveregeneration,?says Ben-Yakar. “We can also apply it to many otherstudies that require nanosurgery, so it’s a very versatile tool.?The beauty of this laser, she says, is ...

Muscle-targeted gene therapy reverses rare muscular dystrophy in mice

...id their approach of targeting corrective genes to muscles may have application in treating other muscular dy... energy source. As a result, glycogen builds up in muscles throughout the body, including the heart, causing muscles to degenerate. Using genetically altered ...

First 'atlas' of key brain genes could speed research on cancer, neurological diseases

...by abnormally developing motor neurons thatcontrol muscles of the tongue.The map, known as the Mahoney Transcription Factor Atlas, has beenplaced online where it is freely accessible to researchers studyingbrain development and disorders.To compile the atlas, the investigators first sifted through databaseso...

UCLA scientists transform HIV into cancer-seeking missile

...er cells, which glowed through the animal's bones, muscles and fur. The method is non-invasive and does not cause pain or harm to the animal. Though excited at proving that HIV can be used to target cancer cells, Chen emphasizes that the carrier must be further enhanced for safety and specificity before it ...

X-Ray Beams And Fruit Fly 'Flight Simulator' Aid Scientists' View Of Muscle Power

...gned by Michael Dickinson of Caltech, to probe the muscles in a flying fruit fly and examine how it generates... a ‘movie?of the molecular changes in the powerful muscles as they lengthen and shorten to drive the wings back and forth 200 times each second. “At the molec...

Implanted Devices Detect High-Risk Heart Failure Patients

...s a condition marked by the inability of the heart muscles to pump enough oxygen and nutrients in the blood to the body's tissues. Also known as congestive heart failure, its many causes include infections of the heart, coronary artery disease, high blood pressure, previous heart attacks and valve problems. ...

Rush Physicians Using Gene Therapy For Heart Patients With Moderate To Severe Chest Pains Who Do Not Benefit From Other Treatments

...required to provide oxygen-carrying blood to heart muscles to compensate for the blocked heart arteries. The subsequent, improved blood flow relieves the painful symptoms of angina. "The process of growing new blood vessels, or angiogenesis, should occur over the course of four to eight weeks following the ...

50-year-old Mystery Solved: Protein Tags Regulate Key Ion Channel

..."excitable" cells in the brain, heart and skeletal muscles "fire," sending out nervous impulses that become thoughts, heartbeats and basketball dunks. "We found that a little-studied process called sumoylation, previously associated with nuclear proteins, is active and essential outside the nucleus at the p...

Scientists discover that three overlapping signals in embryo help get the backbone right

...f a back that morphs into a brain, spinal cord and muscles - turns out to be so important that the body uses ...on the back of the embryo - brain, spinal cord and muscles - were lost," Khokha said. "Not only were back tissues lost, but belly tissues were greatly expanded...

Stem cell research - new cell lines

...h forms the guts and liver and a third which forms muscles and bones," he said. "We need to establish a recipe to derive each of these from human embryonic stem cells, so they can be transplanted straight into the affected area of a patient. "The insulin-producing cells, which are derived from the layer whi...

Future diabetes drugs may target new protein interaction

...Day celebration.) "When there's no incoming food, muscles make lactate and alanine and send them to the liver to be converted into pyruvate and glucose," says Puigserver. "It appears, from our work, as though the pyruvate then triggers increased production of sirtuin1, which in turn lets PGC1 start converti...

PHACCS, an online tool for estimating the structure and diversity of uncultured viral communities using metagenomic information

...Day celebration.) "When there's no incoming food, muscles make lactate and alanine and send them to the liver to be converted into pyruvate and glucose," says Puigserver. "It appears, from our work, as though the pyruvate then triggers increased production of sirtuin1, which in turn lets PGC1 start converti...

Computational verification of protein-protein interactions by orthologous co-expression

...Day celebration.) "When there's no incoming food, muscles make lactate and alanine and send them to the liver to be converted into pyruvate and glucose," says Puigserver. "It appears, from our work, as though the pyruvate then triggers increased production of sirtuin1, which in turn lets PGC1 start converti...

Eliminate Data Analysis Bottlenecks in Drug Discovery

...Day celebration.) "When there's no incoming food, muscles make lactate and alanine and send them to the liver to be converted into pyruvate and glucose," says Puigserver. "It appears, from our work, as though the pyruvate then triggers increased production of sirtuin1, which in turn lets PGC1 start converti...

Young Blood Revives Aging Muscles, Stanford Researchers Find

Any older person can attest that aging muscles don't heal like young ones. But it turns out that'...of Nature shows that it's old blood that keeps the muscles down. The study, led by Thomas Rando, MD, PhD, associate professor of neurology and neurological sc...

Bees, Brains and Addiction

...ses predicts the sugar reward and signaling to the muscles to take the appropriate action to receive the reward. Computer models of how a bee assimilates and responds to information about a reward can be then applied to studies of how humans make decisions about rewards. And predictions from computer modeli...

New complete muscle grown in the lab

...red replacement muscle. For example, the lab-grown muscles could replace tissue lost to severe trauma such as burns, or build up muscle that has weakened or wasted away in diseases like AIDS. Until now, most scientists have not attempted to provide engineered tissue with its own blood supply. Instead, they ...

Exercise training in ordinary people affects the activity of 500 genes

...luences on gene activity in the heart, vessels and muscles are probably immensely important. In this study, ...rformance most also activated several genes in the muscles markedly more. This has not been shown before. Finally, the researchers made a comparison between t...

Spiders help scientists discover how muscles relax

...ure of the array of miniature motors that form our muscles and found out how they are switched off," said Rau...l movement and contractions of the heart. Striated muscles are made of long cylindrical cells called muscle fibers. Within the fibers, millions of units known ...

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