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Tag: "adds" at biology news

Stem cells' electric abilities might help their safe clinical use

...ves, but perhaps for adult stem cells as well." Li adds that much more work is necessary to know for sure. ...

Embryonic stem cells accrue genetic changes

...mulate potentially deleterious changes over time," adds Anirban Maitra, M.B.B.S., an assistant professor of pathology at Johns Hopkins who shares first authorship of the paper with Dan Arking, Ph.D., an instructor at Hopkins. Both are members of the McKusick-Nathans Institute of Genetic Medicine at Johns ...

Logging doubles threat to the Amazon, rivaling clear-cutting, study suggests

...te previously estimated, suggests a new study that adds the effects of logging to those of clear-cutting. The research appears in the 21 October issue of the journal Science , published by AAAS, the nonprofit science society. Until now, satellite-based methods for measuring deforestation across large ar...

Einstein scientists discover how protein crucial for motion is synthesised at the right place in the cell

...which is active only in that part of the cell. Src adds a phosphate group to ZBP1 close to where it binds to messenger RNA, and this phosphorylation reaction detaches ZBP1 from the actin messenger RNA--unlocking the messenger RNA so it can now be translated into the actin protein that makes cell movement ...

Restoring silenced suppressor gene kills lung-cancer cells

...e turned back on, that too will kill tumor cells," adds first author and postdoctoral researcher Muller Fabbri. "We don't believe that using WWOX as a therapy will necessarily eradicate tumors, Fabbri says, "but we do believe that this kind of gene therapy might be useful when used in combination with c...

Fruit fly research set to revolutionize study of birth defects

... up study times while keeping costs low. "It also adds to the growing list of roles fruit flies can take," says Walker. Fruit flies are already used as models for aging, neural disease and cancer. ...

First big influenza genome study reveals flu evolution

...how well a given vaccine works," Ghedin notes. She adds that all sequences described in the current study have been deposited in public databases, such as GenBank, which allows immediate access to the scientific community. The new study represents the initial results from the Influenza Genome Sequencing ...

Scientists pinpoint inflammation gene

...thnic group, which is rare in human genetics. This adds to other clear evidence that SEPS1 is a good target in defeating inflammation, which plays an important role in virtually every disease of major public health importance." ...

New study examines how sense of smell affects mating and aggression in mice

...ulating mating and aggressive behavior in mice. He adds that while it appears humans do not have an intact VNO, they do possess a functioning MOE. In the study, researchers compared the behavior of mutant male mice that had been genetically modified to disrupt the functioning of their MOE with the beha...

Ancient trans-Atlantic swarm brought locusts to the New World

...hat somehow managed to survive the flight. Lovejoy adds that high-altitude winds would have been essential for the swarm's flight. There is a modern-day example of this phenomenon -- in October 1998, a swarm of desert locusts crossed the Atlantic, travelling from Africa to the Caribbean. Using muscle sa...

The dangerous legacy of lead

...o bacteria, viruses and other bugs. The discovery adds insight to the latest trend in lead research, as scientists shift their emphasis from the immediate public health threat to understanding the long-term burden on the body, said Michael McCabe Jr., Ph.D., associate professor of Environmental Medicine ...

Clocking in Pillow Time without the Pillow

... debt to a heavy backpack: every sleep hour missed adds an extra pound to your pack until it weighs you down. For people without time for a daily eight hours in the sack, drugs that counteract the effects of sleep deprivation could serve as substitutes. In a new study, Sam Deadwyler and colleagues have e...

Noise And Delays Explain Why Some Genes Oscillate In Activity

... debt to a heavy backpack: every sleep hour missed adds an extra pound to your pack until it weighs you down. For people without time for a daily eight hours in the sack, drugs that counteract the effects of sleep deprivation could serve as substitutes. In a new study, Sam Deadwyler and colleagues have e...

Scientists narrow the time limits for the human and chimpanzee split

... correct." Hedges, who also is an astrobiologist, adds that "knowing the timescale of human evolution, and how we changed through time in relation to our environment, could provide valuable clues for understanding -- in a more general sense -- the evolution of intelligent life." Walker, a paleoanthropol...

Recreating 'Flowers for Algernon' with a happy ending

...calls the film classic "Flowers for Algernon," but adds a happy ending, UCLA scientists used statins, a popular class of cholesterol drugs, to reverse the attention deficits linked to the leading genetic cause of learning disabilities. The Nov. 8 issue of Current Biology reports the findings, which were ...

Research: Snails were overlooked contributors to marsh destruction

...f predators or other top-down animals. "This study adds to a growing body of evidence showing strong top-down regulation of ecosystems processes, including sharks in the Gulf of Mexico and wolves in Yellowstone Park," Silliman said. Native and abundant, dime- to quarter-sized periwinkle snails can often...

Common alternative treatment for liver disease is found to be ineffective

...ducts may be used, and to support further trials," adds Gluud. ...

New evidence questions the simple link between prion proteins and madcow disease

...this simple relationship exists at all. This paper adds new evidence that can inform the debate. Firstly, it is known that individual people and animals have different levels of genetic susceptibility to this group of diseases, but no one knows how this resistance is achieved. One option is that resistan...

H5N1 avian flu virus vaccine induces immune responses in healthy adults

...ith regard to the development of an H5N1 vaccine," adds NIAID Director Anthony S. Fauci, M.D. "For example, potentially protective immune responses were seen most frequently at the highest dose of this vaccine. We are investigating other options that may allow us to reduce the dosage--for example, adding ...

Liver cancer linked to cellular repair pathway

...e. The work by the Duke and Johns Hopkins team now adds liver cancer to the growing body of evidence suggesting these cancerous tumors are generated by stem-like cells. Stem-like cells in the liver require the Hedgehog pathway for survival, the researchers discovered. These primitive cells are similar to...

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