Articles with the keyword: 
sea-maid submitted, created time 8 months 2 days (www.jcb.org)
The function of macrophage is to block a molecular motor that helps drag bacteria and other potential enemies into the macrophage. CD47 plays an important role in this process: self CD47 prevents cells that carry it from being eaten. 
Researchers protest destruction of bacteria collection
jane2007 submitted, created time 9 months 2 weeks (www.nature.com)
A group of nearly 250 researchers is requesting an investigation into the destruction of thousands of samples from an infectious disease lab at the Veterans Affairs Medical Center in Pittsburgh, Pennsylvania.
Pandemic Hot Spots Map a Path to Prevention
jane2007 submitted, created time 10 months 2 weeks (www.sciam.com)
A new study maps out areas of the world that researchers think are most likely to breed the killer diseases of the future—and the highlighted countries are not the ones getting most of the resources for disease prevention. The analysis is part of a budding effort to identify emerging viruses in particular and prevent future pandemics from reaching their full potential.
Superinfection as a driver of genomic diversification in antigenically variant pathogens
davidd submitted, created time 10 months 2 weeks (www.pnas.org)
A new pathogen strain can penetrate an immune host population only if it can escape immunity generated against the original strain. There is a selection model to explain single pathogen. But what about complex pathogens? Here, they show that the diversity in the alleles encoding antigenic variants between strains of a highly antigenically variant pathogen was equal to the diversity within strains, reflecting equivalent selection for variants to overcome immunity at the host population level as within an individual host.
Plant-disease controls sap outbreak responses
jane2007 submitted, created time 1 year 1 month (www.nature.com)
Microbiologists in the United States are expressing concern about a government proposal to limit research on several plant pathogens because of their potential to be used as bioweapons. The researchers say that the plan to subject rice and citrus disease agents to the same restrictions as Ebola virus and anthrax are ill-conceived and will limit the response to a natural outbreak.
yangjane submitted, created time 1 year 2 months (www.plantphysiol.org)
In sum, both direct inhibition of pathogen infection and activation of defense systems were responsible for disease protection in bar-transgenic rice.
Estimation of the number of virus particles transmitted by an insect vector
richard submitted, created time 1 year 2 months (www.pnas.org)
Plant viruses are submitted to narrow population bottlenecks both during infection of their hosts and during horizontal transmission between host individuals. The size of bottlenecks exerted on virus populations during plant invasion has been estimated in a few pathosystems but is not addressed yet for horizontal transmission.
Study explains how pathogens evolve to escape detection
bianjie submitted, created time 1 year 5 months (www.news.cornell.edu)
In the evolutionary battle in which plants are trying to beef up their defenses against pathogens, Cornell researchers have discovered a bacterium that infects tomatoes by injecting a special protein into the plant's cells and undermines the plant's defense system.
Research May Lead To Better Drugs To Fight Deadly Pathogens
cappuccion submitted, created time 1 year 5 months (www.medicalnewstoday.com)
Biology textbooks suggest that blunt-neutrophils are mindless killers. These white blood cells patrol the body and guard against infection by bacteria and fungi, identifying and destroying any invaders that cross their path. But new evidence, which may lead to better drugs to fight deadly pathogens, indicates that neutrophils might actually distinguish among their targets.
How Immune Cells Catch Pathogens
broadcast submitted, created time 1 year 5 months (www.medicalnewstoday.com)
To protect us from disease our immune system employs macrophages, cells that roam our body in search of disease-causing bacteria. With the help of long tentacle-like protrusions, macrophages can catch suspicious particles, pull them towards their cell bodies, internalise and destroy them. Using a special microscopy technique, researchers from the European Molecular Biology Laboratory (EMBL) now for the first time tracked the dynamic behaviour of these tentacles in three dimensions
Bee Colony Collapse Disorder: Could It Be Parasites, Pathogens Or Pesticides?
diggman submitted, created time 1 year 7 months (www.sciencedaily.com)
Scientists are working hard to understand the sources of a staggering decline in honeybees in as many as 27 U.S. states and countries in Europe and Asia this winter, said Cornell associate professor of entomology Nicholas Calderone.
athena submitted, created time 1 year 8 months (www.sciencedirect.com)
"B-1 cells comprise a small percentage of the B lymphocytes that reside in multiple tissues in the mouse, including the peritoneal and pleural cavities. Functionally, B-1 cells participate in innate immunity by producing the majority of the natural IgM in serum, which protects against invading pathogens before the onset of the adaptive immune response. B-1 cells arise from fetal and neonatal progenitors and are distinct from the adult bone marrow progenitors that give rise to follicular and marginal zone B-2 cells
Ark. Company Develops Food Safety Test
athena submitted, created time 1 year 9 months (hosted.ap.org)
"An Arkansas company has developed a new, fast method to test food for pathogens such as E. coli and salmonella that are the most common causes of food-borne illnesses. The process developed by Little Rock-based Litmus LLC can provide results in about 15 minutes instead of the standard two or three days, according to an executive of the company."
Tell You An Effective Preventative Against Infection Is Such a Protein
DanyC submitted, created time 1 year 9 months (www.playfuls.com)
In the March 23 issue of PLoS Pathogens, researchers at St. Jude show that middle ear infections in mice can be prevented by giving the mice a lysin – a protein derived from a virus that infects bacteria.
Infectious disease, the innate immune response, and fibrosis
julie submitted, created time 1 year 9 months (www.jci.org)
"The unrelenting and destructive progression of most fibrotic responses in the pulmonary, cardiovascular, integumentary, and alimentary systems remains a major medical challenge for which therapies are desperately needed. "
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