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Tag: "respond" at biology news

Researchers discover way to make cells in the eye sensitive to light

...psin, these cells may gain the ability tosense and respond to light.Professor Mark Hankins, from Imperial College London and Charing CrossHospital, and one of the papers authors, comments: "It is quiteremarkable that the activation of a single gene can create a functionalphotoreceptor. It is an important pro...

Source of molecular triggers in cutaneous T cell lymphoma identified

...l subset of lymphocytes that are pre-programmed to respond to self-antigens exposed during normal cell death. As cells undergo the process of apoptosis, cryptic -- or masked -- antigens, are uncovered. Those newly available antigens are presented by LC directly to CTCL receptors, stimulating the malignant ce...

Growth in the sea comes down to a struggle for iron

...closer to the source of that dust may be primed to respond differently. Wells and his colleagues will be studying the possibility that small variations in iron throughout the world's oceans may have important ecological consequences as well. Their results will contribute to the diverse oceanographic underst...

Genome of deadly amoeba shows surprising complexity, evidence of lateral gene transfer

... it to sense certain facets of its environment and respond to those cues," says Neil Hall, a TIGR scientist who is the senior author of the Nature study. He did most of his work on the E. histolytica genome while in his previous position at Sanger. Matthew Berriman of Sanger said, "The results give a fascin...

Plants, animals share molecular growth mechanisms

...cells to grow in different ways or alter how cells respond to external stimuli so they can defend themselves ...structures in a cell are positioned and how plants respond to gravity and light. Szymanski's team used a deformed version of a common research plant, Arabidop...

Plants respond similarly to signals from friends, enemies

...sh this ?they discovered that the plants failed to respond to signals from both friend and foe, and therefore no changes were viewed in the plant's cytoskeleton. "This exquisite system that plants have developed to allow beneficial interactions with other organisms like rhizobia is being exploited by nemato...

Antibiotic Resistant Bacterium Uses Sonar-like Strategy to “See?Enemies or Prey

...esebacteria know when other cells are present, and respond accordingly.In the laboratory, the team found that...see?theenvironment, and based on that information, respond accordingly. We maybe able to learn from nature and adapt a similar strategy to help theaging popula...

Novel Therapy Tested in Mice Could Chase Away Cat Allergies

...es from its skin or hair), key immune system cells respond by spewing out histamine. Allergy experts estimate that 14 percent of children 6 to 19 years old are allergic to cats. The treatment comprises a molecule that loosely tethers a feline and a human protein together. The feline end is the notorious pro...

New imaging method gives early indication if brain cancer therapy is effective, U-M study shows

...termine if the tumor shrank. If the cancer did not respond to the treatment, a new approach may be tried. Using diffusion MRI and the functional diffusion map, the U-M researchers were able to predict with 100 percent accuracy after only three weeks of treatment whether the therapy would be effective ?10 we...

Muscle-targeted gene therapy reverses rare muscular dystrophy in mice

...ternative treatment for those children who fail to respond to enzyme replacement therapy, he said. Even for those that respond well to enzyme infusions, treatment requires weekly injection of a large amount of the enzyme. "Gen...

Poplar trees redirect resources in response to simulated attack

...insights on a long-debated theory about how plants respond to environmental stress, and shows that radiotrace...ss, such as an insect attack. "We know that plants respond defensively to attacks, for example, by producing chemicals that kill off the attackers or make thei...

Discovery of key protein's shape could lead to improved bacterial pneumonia vaccine

... children (youngerthan two years) do not naturally respond to carbohydrates. Pneumococcusvaccines for children must instead be modified by binding thosecarbohydrates to special proteins that stimulate the immune systems ofyoung children. “However such vaccines are so complex that they cancarry carbohydrate t...

New comparative toxicogenomics database

... children (youngerthan two years) do not naturally respond to carbohydrates. Pneumococcusvaccines for children must instead be modified by binding thosecarbohydrates to special proteins that stimulate the immune systems ofyoung children. “However such vaccines are so complex that they cancarry carbohydrate t...

Taking Aim With Nanoparticle PEBBLEs

...ping to show where tumors are located and how they respond to treatment. In recent experiments with a small number of rats that had a type of brain cancer called 9L-gliosarcoma, PEBBLE-based treatment significantly increased survival time. People who get that type of cancer usually live less than four month...

Jumping gene helps explain immune system's abilities

...immunesystem's remarkable ability to recognize and respond to a milliondifferent proteins might have originated from a family of genes whoseonly apparent function is to jump around in genetic material. "Jumping genes" essentially cut themselves out of the genetic material, and scientistshave suspected that t...

UCSD Discovery Shows How Embryonic Stem Cells Perform 'Quality Control' Inspections

...immunesystem's remarkable ability to recognize and respond to a milliondifferent proteins might have originated from a family of genes whoseonly apparent function is to jump around in genetic material. "Jumping genes" essentially cut themselves out of the genetic material, and scientistshave suspected that t...

NIAID Initiates Trial of Experimental Avian Flu Vaccine

...l marks a key advance in our efforts to prepare to respond to an avian flu pandemic,?adds Dr. Fauci. Sanofi pasteur, Swiftwater, PA, manufactured the trial vaccine, which is an inactivated vaccine made from an H5N1 virus isolated in Southeast Asia in 2004. Sanofi pasteur, formerly Aventis Pasteur, was award...

New therapy for HIV/AIDS eliminates needles and excessive toxicity

...immunesystem's remarkable ability to recognize and respond to a milliondifferent proteins might have originated from a family of genes whoseonly apparent function is to jump around in genetic material. "Jumping genes" essentially cut themselves out of the genetic material, and scientistshave suspected that t...

Gene sequencing explains bioremediation 'bug'

...immunesystem's remarkable ability to recognize and respond to a milliondifferent proteins might have originated from a family of genes whoseonly apparent function is to jump around in genetic material. "Jumping genes" essentially cut themselves out of the genetic material, and scientistshave suspected that t...

Circles Of DNA Might Help Predict Success Of Stem Cell Transplantation

...ge individual patients by predicting how they will respond to stem cell transplants." Other authors of this study are Raymond Barfield, Ely Benaim, Wing Leung, James Knowles, Dawn Lawrence, Mario Otto, Sheila A. Shurtleff, Geoffrey A. M. Neale, Frederick G. Behm and Victoria Turner. ### This work was supp...

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