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Tag: "alter" at biology news

Cornell researchers find serious fish virus in Northeast for first time

...re equally unknown. The virus has the potential to alter the freshwater food web with both predators like muskellunge and prey fish like perch and crappie equally at risk. "In a large ecosystem -- we're talking about the lower Great Lakes -- there really is no treatment," said Bowser. "The best managemen...

How healthy is that marsh? Biologists count parasites

...mation provides a novel way to see what we need to alter to improve habitats," Kuris said. The feasibility of the snail-as-data-logger idea was established at a case-study site at the Carpinteria salt marsh in Santa Barbara. There, the biologists showed the trematode community did indeed become measurabl...

Even a little cooling helps after cardiac arrest

...mation provides a novel way to see what we need to alter to improve habitats," Kuris said. The feasibility of the snail-as-data-logger idea was established at a case-study site at the Carpinteria salt marsh in Santa Barbara. There, the biologists showed the trematode community did indeed become measurabl...

When it comes to gene transcription, random pauses aren’t quite so random, study finds

...mory: If an enzyme pauses at one DNA site, will it alter its behavior when it encounters the same sequence again? "It turns out that RNAP enzymes may have individual personalities, but no memories," Herbert explained. "That is, they exhibit a distinct behavior--they tend to pause more or less, but they don...

Invasive species alter habitat to their benefit

...attails have taken hold. The cattails, they found, alter the environment in ways that hinder native species but benefit the invaders. Farrer and Goldberg will present their results Aug. 9 at a meeting of the Ecological Society of America in Memphis, Tenn. "When you have an invasion, you typically see thr...

Ten years later, Dolly is still making headlines

...go, will speak about his plans to clone embryos to alter disease genes in humans. Wilmut will be joined by two other leaders in biotechnology research, Dr. Kevin Eggan of the Harvard Stem Cell Institute, where plans were just announced to create the world's first cloned human embryonic stem cells, and Dr. ...

Report warns about carbon dioxide threats to marine life

...cades and centuries in ways that will dramatically alter marine life," says Joan Kleypas, the report's lead...e food webs and has the potential to substantially alter the biodiversity and productivity of the ocean," says Victoria Fabry of California State University,...

Female birds boost up their eggs when hearing sexy song

...thology researchers show that female songbirds can alter the size of eggs and possibly the sex of their chicks according to how they perceive their mate's quality. The researchers played back attractive ("sexy") songs and less attractive control songs of male canaries to female domesticated canaries. Whe...

No-mow grass may be coming to your yard soon

...tion leads to a cascade of biochemical events that alter the ability of key proteins to dimerize and activa...he process of growth. Levers that could be used to alter a hormone pathway to influence plant development and stature, according to Chory, include modifying ...

Results with newer bladeless LASIK equivalent to standard microkeratome LASIK

...ss or astigmatism by reshaping the eye's cornea to alter the way the eye refracts light. LASIK involves creating a flap, removing a defined amount of corneal tissue by an excimer laser, and replacing the flap. In standard LASIK with a mechanical microkeratome, the flap is created by a blade; in bladeless L...

Gut reaction: Researchers define the colon's genome

...s, lifestyle, and biosphere? Finally, how might we alter these microbial communities for better health in a person or population? ...

With record resolution and sensitivity, tool images how life organizes in a cell membrane

...ture of the molecules to which they attach and can alter their behavior. Moreover, dyes do not allow scientists to analyze membrane compositions, because scientists see only what they've labeled. ''If you want to look at lipids certainly, lipid organization, you need some other way [than dyes],'' Boxer sa...

Inheriting a tendency to brain infection

...n error in a single gene is enough to dramatically alter an individual's susceptibility to certain infections. Howard Hughes Medical Institute (HHMI) international research scholar Jean-Laurent Casanova and Emmanuelle Jouanguy of the Necker Medical School in Paris, along with other colleagues have iden...

Fragmentation rapidly erodes Amazonian biodiversity

...ges occur remarkably fast, and when you completely alter something as basic as the trees, the other species that live in the rainforest will surely be affected too.? ...

New path from estrogen to survival in breast cancer cells described

...DD8, a protein that can bind to other proteins and alter their function. SENP8, a protease (enzyme) that can break bonds between other molecules. SIRT1 NFkB (Nuclear Factor kappa B), a family of proteins that turn on genes involved in cell death (apoptosis) and cell proliferation. When over-expressed, NFk...

Ocean temperature predicts spread of marine species

... College of Arts and Sciences. "Temperature can alter the number and diversity of adult species in a certain area by changing where larvae end up," O'Connor said. "It is important to understand how a fish population is replenished if we want to attempt to manage or conserve it." Using data from 72 ma...

Pilot study successful in taming allergic reactions to food

...ce to it. The therapy works on a cellular level to alter specific immune system cells, called lymphocytes, that play a part in orchestrating allergic reactions and to increase the immune system’s production of antibodies that attack and neutralize allergens, Burks said. The seven subjects in the study,...

Cardiologist's 'living chip' changes science of disease monitoring

...vels at an early stage, prompting the physician to alter medications to correct the problem. Currently, without blood work being done, the patient or physician would not suspect an issue until the patient began having symptoms or underwent pre-scheduled testing at a routine visit. Catching the problem earl...

Effective HIV control may depend on viral protein targeted by immune cells

...ve. To investigate how variations in CD8 response alter the ability to control HIV, the research team enrolled almost 600 South African patients who had not yet been treated for their HIV infections. The researchers comprehensively mapped the CD8 responses against all viral proteins and also investig...

Stanford discovery may help predict when toxoplasma can be deadly

...ay than to introduce a kinase that can completely alter the entire physiology of that host cell," said Boothroyd. The findings may play a role in helping pregnant women who become infected for the first time with the parasite. If doctors can test whether the women have one of the more virulent strain...

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