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Tag: "damaging" at biology news

Blood test may help signal tumor's remission, return in throat cancer patients

...can severely impair a patient’s quality of life by damaging voice, speech, and swallowing, in many cases physicians and their patients are now opting for a combination of chemotherapy and radiation as a first line of treatment. However, there is no way to predict which patients will respond well to this treat...

Small, self-controlled planes combine plant pathology and engineering

...pread of plant disease, and mitigating potentially damaging events targeted at our nation’s agriculture and food supply.”...

A cherry on top: Tart cherries may alter heart/diabetes factors

... higher reading means better ability to neutralize damaging free radical molecules produced in the body during metabolism. The rats that received cherries had higher antioxidant capacity, indicating lower oxidative stress in their bodies, than those that did not. In addition to blood measures, the research...

Does amateur boxing cause brain damage?

...st. "Repeated hits to the head are potentially damaging to the central nervous system, and our results suggest CSF-analysis could be used for medical counseling of athletes after boxing or head injury," said Hietala. The study was extended to soccer players heading the ball repeatedly from long and hig...

Amphibians in losing race with environmental change

... conditions may subject amphibians to a variety of damaging agents." Natural selection and species adaptation may, in time, allow amphibians to react to and recover from the new environmental insults, Blaustein said, if they don't go extinct first. But evolution is an erratic, often slow and imperfect s...

DNA-damage test could aid drug development

...these developing cells reacted to three toxic DNA- damaging agents whose effects had been studied by Samson's lab, and found the results correlated well with results from the existing test. Additionally, he experimented with mutant mice created by Samson's lab that are deficient in certain DNA-repair systems....

Study warns deep-sea mining may pose serious threat to fragile marine ecosystems

... widely, disrupting the food chain and potentially damaging ecosystems that lie within other countries?economic zones or in international waters. This poses additional problems, because while a state has the right to exploit its own resources, international environmental law decrees that it cannot damage the ...

Discovery could lead to better control of hemorrhagic fever viruses

...y help explain why these viruses wreak such havoc, damaging multiple organs and causing bleeding under the skin, in internal organs, and from orifices like the mouth, eyes or ears. Because of TfR1's essential function in transporting iron into cells, it is found on the surface of virtually every cell of t...

Cold sore virus might play role in Alzheimer's disease

...s in the nervous system to cells around the mouth, damaging cells and causing cold sores. It was this cycle of activity and latency that Miller and Federoff focused on while looking at the brain cells of mice with different forms of the ApoE gene. They looked at four groups of mice: Some had ApoE-3, which ...

Researchers find hepatitis A and hepatitis C attack same protein to block immune defenses

...titis C, by contrast, often spends decades quietly damaging the liver, until a victim’s only hope for survival is an organ transplant. According to researchers at the University of Texas Medical Branch at Galveston (UTMB), though, these two otherwise unrelated liver viruses have one important thing in common...

Are journal rankings distorting science?

.... He sees the measure as fatally flawed and highly damaging to the academic community. "The impact factor is a pointless waste of time, energy, and money, and a powerful driver of perverse behaviours in people who should know better," he writes. "It should be killed off, and the sooner the better." But...

Strawberry daiquiris -- the extra-healthy cocktail?

...nerative disorders. They work by helping to mop up damaging free radicals produced naturally during a person’s normal metabolism. Those who aren’t keen on strawberry daiquiris might be relieved to know that the scientists found similar results with blackberries, meaning that a blackberry-crowned champagne...

A steady, high-fat diet is bad, but the news gets worse

...’s cause for concern because it suggests a new and damaging way that a high-fat diet affects cardiovascular function." In the study, 30 healthy young adults fasted the night before, then consumed either a high- or low-fat breakfast. Both meals had the same number of calories and the low-fat breakfast i...

Inhibiting blood to save the brain

...design a therapeutic strategy that would block the damaging effects of fibrinogen without affecting its beneficial blood coagulation. Studying a mouse model, the researchers identified a specific receptor called Mac-1 that is expressed by microglial cells and binds to fibrinogen. Mice expressing a mutant fo...

Whitefly spreads emerging plant viruses

...ci is now among the most invasive and economically damaging insects to agriculture, spanning food and fiber cr...of plant viruses will continue to emerge and cause damaging diseases in food and fiber crops," Brown said. Early virus and vector detection, information abo...

Honeydew honeys are better antioxidants than nectar honeys

... and aging. They operate by mopping up potentially damaging free radicals that are released in the body. Honey is one source of antioxidants. The composition of honey depends greatly on where honeybees collect their raw materials. There are two key types of source. First, honeybees can collect nectar from ...

Reactivated gene shrinks tumors

...The study also revealed that turning on p53 has no damaging effects in normal cells. The researchers had worried that p53 would kill normal cells because it had never been expressed in those cells. "This means you can design drugs that restore p53 and you don't have to worry too much about toxic side effec...

Does a peptide affect the heart's response to social isolation?

... These findings suggest that oxytocin can prevent damaging cardiac changes in adult female prairie voles exposed to social isolation. While there are limitations to the study, including the lack of spontaneous puberty and estrous cycles in female prairie voles (unlike their human counterpart), the results se...

When smell cells fail they call in stem cell reserves

...en went back and looked at nerve repair under less damaging circumstances where only the olfactory nerve cells are killed. In this situation, the HBCs did nothing to repair the damaged cells; rather, they allowed the previously known stem cells to do all the repair work. “The ability to smell is crucial f...

Gladstone investigators identify a new protective action for the powerful anti-HIV factor, APOBEC3G

...elements to new chromosomal sites with potentially damaging effect involves copying DNA into RNA and then back into DNA again. The A3G RNA protein complex, Chiu determined, interrupts this retro-element replication cycle by binding the retro-element RNAs and sequestering them in the cytoplasm away from the nu...

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