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Tag: "you" at biology news

Probing The Promise And Perils Of Nanoparticles

...d. "If you're inventing these sorts of materials, you need to be concerned about their impact," said Mark Banaszak Holl, a U-M professor of chemistry and of macromolecular science and engineering. "We're trying to do both: make important new materials and be excited about what can be done with them, but...

Introduced foxes transformed vegetation on Aleutian Islands from lush grasslands to tundra

...ns of foxes persisted into the late 1990s). "When you go to an island that had foxes, it's very easy to walk around because the plants don't grow much higher than your ankles. But on the other islands, it's hard work just to get through the vegetation. It was exhausting just trying to get around on thos...

Gene Therapy For Parkinson's Disease Moves Forward In Animals

... would express GDNF. What they've found is that if you get low-level expression, you can prevent cell death in a part of the brain called the substantia nigra. That's been shown before ...

Researchers trace evolution to relatively simple genetic changes

.... Instead of killing the protein (with mutations), you merely adjust the way it is normally regulated. That allows you to make a major change in a particular body region ?and produces a new type of body armor without ot...

Octopuses occasionally stroll around on two arms, UC Berkeley biologists report

.... Instead of killing the protein (with mutations), you merely adjust the way it is normally regulated. That allows you to make a major change in a particular body region ?and produces a new type of body armor without ot...

Deficiency of growth hormone and IGF-1 reduces cancer and kidney disease, but creates other problems

...d the lead investigator. "Things that happen when you are an adolescent may have an impact on how long you live and what you die of," he said. "The presence of growth hormone and IGF-1 is necessary for main...

Ice core 'dipstick' indicates West Antarctic ice has thinned less than believed

...tarting in about the same places they do now. "If you are making the ice sheet thinner over time, you're also stretching it much farther, so the individual layers get much thinner than they would be in a steady state," Waddington said. Waddington is lead author of a paper describing the research, which...

Duke Chemists Isolating Individual Molecules Of Toxic Protein In Alzheimer's, Parkinson's Disease

...egation are not fully understood," he said. "When you start a normal reaction, molecules are free in sol... with each other randomly," Akhremitchev said. "If you want to dissect the process, you would rather want to study interactions individually." Thus, the D...

Plants defy Mendel's inheritance laws, may prompt textbook changes

...nd radiated out from the center of a cluster. "If you take this mutant Arabidopsis, which has two copies of the altered gene, let it seed and then plant the seeds, 90 percent of the offspring will look like the parent, but 10 percent will look like the normal grandparents," Pruitt said. "Our genetic tra...

Antibodies from plants protect against anthrax

...the plant cells. "The plant makes the antibody for you in a few days," says Baillie. The antibodies were...s treatment. "If you've been exposed to an agent, you want protection as soon as possible. Vaccination can take a very long time to build immunity. Antibo...

Scientists identify new model Of NK cell development

... work. In cancer, as in other diseases, the sooner you intervene, the better." ...

Falling ants glide back to trunk to avoid dangers of forest floor

...behind the behavior," he said. "In Amazon forests, you really don't want to fall out of your tree and in ...lling uncontrolled, to being able to control where you land," Yanoviak said. The gliding behavior would be a definite advantage for ants, like Cephalotes,...

New Treatment Rivals Chemotherapy For Lymphoma, Study Finds

...t, bind to and kill cancerous cells. Provided that you can find something different on the cell surface between normal and cancerous cells; this is not as easy as it sounds. A new form of treatment for lymphoma that takes a fraction of the time of traditional chemotherapy with fewer side effects caused...

Gene therapy for Parkinson's disease moves forward in animals

... would express GDNF. What they've found is that if you get low-level expression, you can prevent cell death in a part of the brain called the substantia nigra. That's been shown before ...

Implanted Devices Detect High-Risk Heart Failure Patients

... American College of Cardiology in Orlando. "When you talk to heart failure patients, many times their p...nt is truly doing. It is an objective finding that you can look at and easily understand." Gilliam pointed out that the cardiologists are "in uncharted wa...

How an AIDS-Related Cancer Unleashes Inflammation

...vations made in patients with KS, Ganem noted. "If you examine lesions in a patient with KS, you'll see that they are visibly red because of all the new blood vessels that KS produces," he said. In cell culture studies, the researchers found evidence of an “activation loop,?by which kaposin B activation...

PCRM develops world's first cruelty-free insulin assay

...alternatives to the use of animals in research and you want to conduct research of your own that requires using animals as part of the testing, what do you do? In the case of the Physicians Committee for Responsible Medicine, you invent your own test. PCR...

Children's taste sensitivity and food choices influenced by taste gene

...la comments, "What I find most interesting is that you do not see the relationship between bitter taste receptor genotype and sweet preference in adults. The forces of experience and culture appear to have overridden the genetic effect." Some mothers and their children may live in different sensory worl...

New Insights Into HIV Immunity Suggest Alternative Approach to Vaccines

... in all of HIV vaccine research has been that when you inject the envelope of the HIV virus into people or animals, no broadly neutralizing antibodies ?those antibodies that kill most HIV strains ?are made. This provides a plausible explanation for why broadly protective antibodies have not been made in ...

Vampire bats keep out of trouble by running

...The vampire bat is good on the ground because when you feed on the hoof of an animal that weighs 14,000 times more than you do, it's dangerous." Also, there are and always have been a variety of predators in the Western Hemi...

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