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Tag: "reverse" at biology news

PNAS study reveals why organs fail following massive trauma

...failure and making possible the design of drugs to reverse it. Trauma has become a federal research priorit...represents a target for the design of new drugs to reverse T cell shutdown. The research for the current paper was conducted under the auspices of a Large-S...

Fish species plays surprise role in aiding coral reef recovery

...onsumers of seaweed on coral reefs, were unable to reverse runaway algal blooms. The study’s findings highlight the unexpected importance of a single rare species in the recovery of coral reefs, and potentially contribute to the identification and future protection of species groups that underlie the res...

Paramecia adapt their swimming to changing gravitational force

...ero gravity, they swam up and down equally. And in reverse gravity, they dove for where the sediments ought to be. "If you want to make something float more," said Valles, "you put it in a fluid and you pull the fluid down harder than you pull the thing down. And that's what we basically do with the magnet....

Dragonfly's metabolic disease provides clues about human obesity

...E_2 In Marden and Schilder's dragonflies, the reverse happens. Parasitic infection triggers an inflammatory response and immediate changes in metabolism. Unable to metabolize fat, the dragonflies accumulate fat around their muscles. This finding begs the question of whether something similar might be...

Therapeutic role found for carbon monoxide

...that carbon monoxide can also be used to treat and reverse existing disease. "Our results offer the exciting...cted, their results showed that the gas did indeed reverse PAH in the animals, resulting in the restoration of both normal pressures and heart weights (indicat...

New data from NIH lab confirms protocol to reverse type 1 diabetes in mice

... Science provide further support for a protocol to reverse type 1 diabetes in mice and new evidence that adul...l (MGH) demonstrated the efficacy of a protocol to reverse of type 1 diabetes in diabetic mice. Three studies from other institutions published in the March 2...

Halving daily cigarette quota has no health benefit

...this was not true of women who cut back, where the reverse was true. And men who cut back only had slightly lower death rates from all causes combined than the heavy smokers during the first 15 years. After that, death rates were comparable. And there were no significant differences in death rates from...

Targeted virus compels cancer cells to eat themselves

...s showed that hTERT-Ad (short for human telomerase reverse transcriptase promoter regulated adenovirus) infected the glioma cells and induced autophagy by inactivating a molecular pathway -- the mammalian target of rapamycin (mTOR) pathway -- that is known to prevent cellular self-cannibalization. The r...

Why mice don't get cancer of the retina

...type embryos at the same stage in development. The reverse situation is observed in mutant embryos that do not express p107. This suggests that Rb and p107 compensate for each other in retinal progenitor cells and prevent the deregulated proliferation of the cells that leads to retinoblastoma. By contrast, R...

Cutting calories slightly can reduce aging damage

...g a little more over a lifespan can reduce or even reverse aging-related cell and organ damage in rats. The ...ed and consumed a calorie-restricted diet, had the reverse outcome - they showed a decrease in these molecules in the liver. Leeuwenburgh said the study resul...

Trials for new drug to overcome HIV

...on new front. Many existing drugs work by blocking reverse transcriptase, an enzyme that enables HIV to replicate within cell. Others disable protease, which helps to assemble the virus into particles that infect other cells. Recent experiments in collaboration with Michael Sakalian and his colleagues at th...

Reversing 'hibernating' heart muscle focus of UB researchers

...llion five-year grant to develop new strategies to reverse a heart dysfunction called "hibernating myocardium" that can cause disabling heart failure and sudden death. Hibernating myocardium is a condition in which myocytes (cells in the heart's muscular tissue) shut down, but remain viable in areas that ...

Precision biochemistry tracks DNA damage in fish

..., since natural DNA repair processes may gradually reverse the damage in the absence of further insults, these biomarkers also might be used to help assess the efficacy of pollution remediation efforts. The work was funded in part by the National Institute of Environmental Health Sciences (NIH). ...

Experimental vaccine protects lab animals against several strains of H5N1

...ildren's Research Hospital in Memphis, Tenn., used reverse genetics to develop an influenza virus with two ke...il a strain-specific vaccine can be developed. The reverse genetics method used by the St. Jude investigators would allow rapid vaccine preparation, which is c...

Scientists reverse evolution

...real example of how evolution works because we can reverse it." The hybrid Hoxa1-Hoxb1 gene is not fully identical to the half-billion-year-old Hox1 because it lacks Hoxc1 and Hoxd1. But Hoxc1 vanished during evolution because it was redundant, and Hoxd1 plays a minor role. So the combined Hoxa1-Hoxb1 gen...

Scientists to employ Arctic ice and polar bears to protect diversity of world's crops

...with ferrets is extremely promising news." Using reverse genetics, the team mixed genes from a safe, labora...se disease. The St. Jude team was the first to use reverse genetics to make a vaccine against H5N1 that moved out of the laboratory and into clinical trials: ...

Light guides flight of migratory birds

...t) cues, but during migration it appeared that the reverse was true, -- the magnetic field was used as the primary reference for calibrating the birds' other compass systems. But in a few experiments with birds during migration, the birds did recalibrate the magnetic compass. When Muheim and Phillips did ...

H5N1 vaccine could be basis for life-saving stockpile

...with ferrets is extremely promising news." Using reverse genetics, the team mixed genes from a safe, labora...se disease. The St. Jude team was the first to use reverse genetics to make a vaccine against H5N1 that moved out of the laboratory and into clinical trials: ...

Global study shows all tobacco bad for the heart

...d that we lead the world in efforts to prevent and reverse the trend in smoking. But we cannot rest on our laurels, and must do better still to protect our citizens." "Data like this bolsters anti-smoking efforts worldwide," said Dr. Jennifer Everson, a family physician and vice president, medical at Ha...

New tiger report release: Tiger habitat down from just a decade ago

...water mark for tigers, and charts a way forward to reverse the tide," said John Robinson of the Wildlife Conservation Society. "We can save tigers forever. However, tiger conservation requires commitment from local partners, governments and international donors, along with effective, science-based conservati...

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