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Tag: "longer" at biology news

Cellular message movement captured on video

...lasm.When actin is chemically removed, paxillin no longer moves and its fibrous structures disappear. “As least by showing that paxillin and actin filaments move together we have some insight into the possibility of how paxillin can transmit information from one region of the cell, such as the periphery,...

Innovative smallpox vaccine research study to be conducted at Case Medical Center

...eneral public was ceased in 1972 because it was no longer necessary for prevention. However, recent threats of bioterrorism after 9/11 have spurred the development of a new safer vaccine that can be given to immune-compromised individuals....

Soils offer new hope as carbon sink

...ichar remains locked up in the soil for many years longer than, for example, carbon applied as compost, mulch or crop residue. "We broadly categorise carbon in the soil as being labile (liable to change quickly) or stable – depending on how quickly they break down and convert into carbon dioxide," he sai...

Cigarette smoke alters DNA in sperm, genetic damage could pass to offspring

...age is related to the duration of exposure, so the longer you smoke the more mutations accumulate and the more likely a potential effect may arise in the offspring,” Yauk said. According to Yauk, previous studies have shown that Ms6-hm and similar locations of non-coding DNA are sensitive to damage from...

Old memory traces in brain may trigger chronic pain

... of the thalamus. Apkarian also found that the longer a person has been suffering from chronic pain, the more activity in the prefrontal cortex. He was able to predict the years of their suffering from the MRI. “It’s cumulative memory,” he explained. “I can predict with 90 percent accuracy how many ...

How sneaky HIV escapes cells

...e tethers or clumping signals from Gag it could no longer get out of the cell. However, if they were replaced with synthetic membrane anchors and clumping domains Gag regained its ability to get out of cells in exosomes. Gould speculates that cells may have initially developed exosomes as a quality cont...

Bigger horns equal better genes

...the species has slowly repopulated and today is no longer considered endangered. ...

Longer treatment benefits sleep apnea patients

...obstructive sleep apnea benefit significantly from longer nightly use of continuous positive airway pressure (CPAP), a device to improve breathing during sleep, according to a new study supported by the National Heart, Lung, and Blood Institute (NHLBI) of the National Institutes of Health. This is the first...

Research shows cord blood comparable to matched bone marrow

...le the study showed that umbilical cord blood took longer to rebuild the blood-making cells in the body, it was associated with a lower risk of graft versus host disease, a potentially lethal complication, especially when HLA types are mismatched. Rates of leukemia relapse also are lower with mismatched umb...

Penn researchers link cell's protein recycling systems

...e HDAC6 gene is knocked out, inducing autophagy no longer rescues the fly eyes from neurodegeneration. Therefore, autophagy requires HDAC6 to work. They also showed that by simply expressing extra HDAC6, neurodegeneration was prevented in flies with proteasome impairment. Taylor’s group then moved on to fl...

Herpes virus hijacks DNA repair process

...rus and infected mouse cells with it, the virus no longer activated the DNA damage response. The virus's ability to replicate also dramatically decreased. Kinases are versatile proteins that sometimes play multiple roles. To ensure that enhanced viral replication wasn't linked to orf36's interactions wit...

Exploring the dark matter of the genome

...e assembly was checked by matching it to clones of longer sequences. With the painstaking manual assembly ta...e differently from genes in euchromatin, with much longer gaps (introns) between the coding sections of the gene (exons); unlike the introns in euchromatic ge...

Weizmann Institute scientists develop a general 'control switch' for protein activity

... by increasing or reducing it. When the drug is no longer applied, or when it is removed from the system, the protein returns to its natural activity level. As reported recently in the journal Nature Methods, the first stage of the method consists of preparing a set of genetically engineered proteins (ca...

Prey not hard-wired to fear predators

...laska) Locations where the top predators no longer exist. (the polar islands of Greenland and Svalbard, Norway) Locations where native predators have been re-established after once being extinguished. (Yellowstone and Grand Teton National Parks ) To test reactions of animals living w...

Male circumcision overstated as prevention tool against AIDS

...was removed Talbott found that circumcision was no longer statistically significant in explaining the variance in AIDS infection rates across the countries of the World. Second, to date, there has not been an adequate explanation as to why Africa as a continent is experiencing an AIDS epidemic far in exc...

Antarctic icebergs -- Hotspots of ocean life

...e five miles, where the icebergs’ influence was no longer detectable. “Phytoplankton around the icebergs was enriched with large diatom cells, known for their role in productive systems such as upwelling areas of the west coast of the U.S. or ice-edge communities in polar oceans. As diatoms are the pref...

'Smart' mice teach scientists about learning process, brain disorders

...ient to learn that a once-threatening situation no longer poses a danger is a major goal. In addition, Cdk5 is heavily implicated in Alzheimer’s disease and addiction to drugs of abuse, so understanding how the enzyme affects the brain and behavior might aid in the development of new treatments for these...

New research shows sharks use their noses and bodies to locate smells

... or plume preference. However, lesioned animals no longer discriminated between sources of turbulent and oozing odor. In the dark, search time of lesioned animals further increased, and the few animals that located any of the targets did not discriminate between odor and seawater plumes, let alone targets. ...

Want to save polar bears? Follow the ice

...hat make it to shore may be there for increasingly longer periods of time without food as the sea ice becomes more distant and inaccessible. The main question for conservationists is which of the existing 18 populations of polar bears occurring on two continents and one sub-continent stand the best chan...

An 'elegant' idea proves its worth 25 years later

...rgic or comatose newborn or child," she says. "The longer the hyperammonemia lasts, the higher the risk for brain damage." "This is a happy story," says Brusilow. "It isn’t too often in genetic medicine that we can intuitively develop a treatment with already available chemicals and save lives."...

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