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Tag: "destroy" at biology news

Touching Molecules With Your Bare Hands

... viral protein evade the killer T cells that could destroy it. Lab studies show that the amino acid element limits EBNA-1’s interaction with T cells by inhibiting synthesis and, to a lesser degree, degradation of the protein. How this evasive action works or helps the virus in a living organism is not entire...

How A Latent Virus Eludes Immune Defenses

... viral protein evade the killer T cells that could destroy it. Lab studies show that the amino acid element limits EBNA-1’s interaction with T cells by inhibiting synthesis and, to a lesser degree, degradation of the protein. How this evasive action works or helps the virus in a living organism is not entire...

Researchers find gene that may be at root of potato blight

...causes late blight, a devastating disease that can destroy fields of potato and tomato plants. Plant pathogens contain a diverse set of such avirulence genes which, depending on the plant variety, can either facilitate disease or trigger resistance. Avr3a scouts a potato plant on the cellular level to deter...

Distributed Basic Local Alignment Search Toolkit (W.ND-BLAST)

...cause they cannot completely reach and permanently destroy biofilm." Biofilm is a Key Culprit Biofilm is a community of numerous types of microbes that attach to internal pipe surfaces, faucets and showerheads where they thrive and multiply. The force of water passing through the pipes or tap can break off...

New strategies to reduce hospital-aquired infections

...cause they cannot completely reach and permanently destroy biofilm." Biofilm is a Key Culprit Biofilm is a community of numerous types of microbes that attach to internal pipe surfaces, faucets and showerheads where they thrive and multiply. The force of water passing through the pipes or tap can break off...

MUHC scientists describe genetic resistance to rampant virus

...y of our body's defense mechanism to recognize and destroy them. "Detecting these pathogens is not always easy," says Dr. Silvia Vidal, a Canada Research Chair in Host Response to Virus Infection based at the MUHC and lead author of the new research. "CMV has developed cunning disguises to avoid detection by...

At long last, scientists figure out how plants grow

...CF(TIR1) and the repressor that signals enzymes to destroy the repressor, thereby turning on the repressed gene. "The key interaction is between TIR1 and the repressor," Estelle said. "Nihal was able to get that to work in a test tube, but the interaction would only occur if he added auxin to the solution."...

The evolutionary triumph of flower power

...rs got to survive and thrive because people didn't destroy them when they cleared land for agriculture. Instead, they cultivated them and have been doing so for more than 5,000 years. Ironically, many domesticated flowers have been so selected by humans that nature's pollinators ?the bugs and birds ?no long...

Genetic defects give the immune system the green light to attack the pancreas

... membrane are shaped to dock with each invader and destroy it. “As T-cells form, it is not uncommon for a few to randomly develop with the potential ability to attack the body’s own cells,?said Dr. Holler. “That’s when a safeguard mechanism normally kicks in to eliminate these errant T-cells. Our team found...

Pulsating ultrasound enhances gene therapy for tumors

...s more powerful than standard ultrasound. HIFU can destroy tumors through long and continuous exposures that raise the temperature inside cancerous cells, effectively "cooking" them. Under a technique introduced by King C.P. Li, M.D., M.B.A., from the National Institutes of Health (NIH), short pulses of HIFU...

Probing the promise and perils of nanoparticles

...At high enough concentrations, they can completely destroy the membranes, killing cells in the process. But the damage can be prevented by engineering dendrimers in particular ways, such as modifying their surfaces to make them neutral instead of charged, the scientists found. And, added Banaszak Holl, "not ...

Pathogen-Mimicking Vaccine As Strategy For Cancer Therapy

...eases the immune system's ability to recognize and destroy cancer cells. The Phase I study was conducted by the Lausanne Branch of the Ludwig Institute for Cancer Research (LICR) at the Lausanne University Hospital in Switzerland, in the framework of the international Cancer Vaccine Collaborative (CVC), a pa...

Gene therapy for Parkinson's disease moves forward in animals

...Parkinson-like conditions by introducing a drug to destroy the dopamine-producing cells. Seventeen weeks after that, not only did the GDNF-treated monkeys show improvement in performing tasks, analysis of brain tissue showed the animals' dopamine systems were actually spared by the treatment. "The simplest ...

UF Researchers Map Bacterial Proteins That Cause Tooth Loss

...ading cause of tooth loss ?secreting proteins that destroy the soft tissues and bone that support teeth to cause periodontal disease. Now scientists have identified the thousands of proteins the bacterium produces, shedding light on how it interacts with healthy cells in order to thrive, according to dental...

South America's vast pantanal wetland may become next everglades, UNU experts warn

...easily burns, leading to more frequent fires which destroy flood-adapted trees, in which aquatic birds nest, while killing swamp deer and other animals. (The Pantanal's other fauna includes giant anteaters, armadillos, capybara, the Brazilian tapir and jaguar, and endangered species like the howler and capuc...

Potential Cure for Lymphoma in HIV patients

... alone or in combination withradiation therapy, to destroy the cancerous cells. Most (17 patientsversus three) received the chemotherapy-only option. Radiation therapywas selected for patients younger than 55 who had poorer prognosticfactors: either the cancer had spread to multiple lymph nodes or thepatient...

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

...fish we don't see any mutations that would clearly destroy the protein." There are some very minor changes in many populations, but these changes do not affect key parts of the molecule. In addition, one population in Japan used the same gene to evolve low armor, but has no changes at all in the protein codi...

Researchers trace evolution to relatively simple genetic changes

...fish we don't see any mutations that would clearly destroy the protein." There are some very minor changes in many populations, but these changes do not affect key parts of the molecule. In addition, one population in Japan used the same gene to evolve low armor, but has no changes at all in the protein codi...

Gene Therapy For Parkinson's Disease Moves Forward In Animals

...Parkinson-like conditions by introducing a drug to destroy the dopamine-producing cells. Seventeen weeks after that, not only did the GDNF-treated monkeys show improvement in performing tasks, analysis of brain tissue showed the animals' dopamine systems were actually spared by the treatment. “The simplest ...

Probing The Promise And Perils Of Nanoparticles

...At high enough concentrations, they can completely destroy the membranes, killing cells in the process. But the damage can be prevented by engineering dendrimers in particular ways, such as modifying their surfaces to make them neutral instead of charged, the scientists found. And, added Banaszak Holl, "not ...

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