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Tag: "pathogenic" at biology news

Research on Worms Yields Clues on Aging

...ts did not extend life by protecting theworms from pathogenic bacteria in their environment.Ethosuximide and trimethadione did, however, significantly delayage-related declines in neuro-muscular activity. Treated wormscontinued to display the youthful traits of fast body movement and fastpumping of mouthparts d...

A bacterial genome reveals new targets to combat infectious disease

...ugia malayi: Endosymbiont evolution within a human pathogenic nematode. PLoS Biol 3(4): e121. ...

Scientists decipher genome of fungus that can cause life-threatening infections

... strategies used by C. neoformans comparedto other pathogenic fungi. Researchers also examined the geneticdeterminants of its pathogenicity by comparing the genomes of twoclosely related strains of significantly different virulence. "Notonly have we established a genomic platform for the further study ofthis i...

New SARS Protein Linked To Important Cell Doorway

...genome may be providing the virus with most of its pathogenic punch. Their computerized search highlighted a section of the SARS genetic code that shared several features with immune evasion proteins previously identified in other viruses. Some genetic codes contain sequences of protein-building instructions t...

The Shapes Of Life: NIGMS Project Yields More Than 1,000 Protein Structures

...n plants, mice, yeast, and bacteria, including the pathogenic types that cause pneumonia, anthrax, and tuberculosis. The nine PSI pilot centers have transformed protein structure determination from a mostly manual process to a highly automated one. Robotic instruments rapidly clone, express, purify, crystalliz...

Scientists solve structure of key protein in innate immune response

...inct structural patterns in various molecules from pathogenic microorganisms," explains Dr. Jie-Oh Lee of the Korea Advanced Institute of Science and Technology. "LPS is the most famous and probably the most important inducer of the innate immune response." Dr. Lee and his colleagues solved the three-dimension...

Sequencing of marine bacterium will help study of cell communication

...nd similarities in gene arrangement between it and pathogenic Vibrio species. V. fischeri has a lower GC content...nce of Vibrio fischeri: A symbiotic bacterium with pathogenic congeners," by E. G. Ruby, professor of medical microbiology and immunology at the University of Wis...

Multiple Campylobacter Genomes Sequenced

..., and fever develop within 2? days of picking up a pathogenic Campylobacter species, and in most people, the illness lasts for 7?0 days. But the infection can sometimes be fatal, and some individuals develop Guillain-Barré syndrome, in which the nerves that join the spinal cord and brain to the rest of the body...

Drug-resistant bacteria on poultry products differ by brand

The presence of drug-resistant, pathogenic bacteria on uncooked poultry products varies by commercial brand and is likely related to antibiotic use in production, according to researchers at the Johns Hopkins Bloomberg School of Public Health. Their study is the first to directly compare bact...

PGA on a tour under the skin

...he mechanism through which the organism becomes so pathogenic once the protective barrier of the skin is removed remains unclear. In their study appearing online on February 3 in advance of publication in the March 1 print edition of the Journal of Clinical Investigation,.Michael Otto and colleagues from Rocky...

Researchers make gains in understanding antibiotic resistance

...e Hma ribosome that corresponds to a form found in pathogenic bacteria. Their studies revealed details of erythromycin binding to the mutant form of the Hma ribosome that do not agree with similar analyses by other researchers, according to Steitz. The studies by Steitz's group yielded new information about the...

Researchers report new pro-inflammatory role for anti-inflammatory enzyme

... manner and accelerate host-defense in response to pathogenic stimuli." This discovery may eventually lead to new treatments for septic shock and other inflammatory diseases. "Pharmaceutical companies have been developing iNOS inhibitors to treat sepsis," explains Dr. Hobbs. "However, it now appears as if thes...

Discovery may lead to better Candidiasis drug

...otassium ion flow through the cell membrane of the pathogenic fungus Candida albicans and allows the cell to reg... fungus," said Edgerton. "In addition, many other pathogenic fungi that cause disease in elderly individuals or AIDS patients also should be able to be killed by...

Edible bivalves as a source of human pathogens: signals between vibrios and the bivalve host.

...the hemolymph bactericidal activity and to develop pathogenic effects in the bivalve host." The authors describ...trains seem to adopt a common strategy utilized by pathogenic bacteria in mammalian cells: to undermine host cell functions through disregulation of its signaling...

Secret of smallpox's success may lead to bioterror cure

...n!' and so it fights the mutant virus and a normal pathogenic virus as well." The gene that Jacobs has isolated and eliminated from the mutants is a special adaptation of pox viruses that appears to help the viruses hide double-stranded RNA, a form of RNA that only viruses produce and that animal immune system...

Symbiotic bacteria protect hunting wasps from fungal infestation

...erial symbionts to protect the wasp larvae against pathogenic fungi. Detrimental microorganisms are a permanent...the bacteria produce antibiotics that work against pathogenic fungi. These findings broaden our understanding of the evolution and functioning of symbioses that i...

Stealth Worms May Improve Insect Pest Control

...ck says. "Yet these nematodes are so powerful and pathogenic not in and of themselves, but because they live in symbiosis with bacteria," Stock concludes. "Both the bacteria and the nematode need each other to survive, making them not only good as biological agents, but also as model systems for understanding ...

New strategies to reduce hospital-aquired infections

...d as a source of many of these infections, harbors pathogenic microorganisms that can pose a significant health threat to patients, especially those with weakened immune systems. By all accounts the prevalence of infections caused by some of the most potentially lethal waterborne microbes, such as legionella an...

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

...d as a source of many of these infections, harbors pathogenic microorganisms that can pose a significant health threat to patients, especially those with weakened immune systems. By all accounts the prevalence of infections caused by some of the most potentially lethal waterborne microbes, such as legionella an...

Where bacteria get their genes

...wapping, or lateral gene transfer, is the way many pathogenic bacteria pick up antibiotic resistance or become m...y human pathogens, including Salmonella, Shigella, pathogenic E. coli, and Pseudomonas. Ochman's team compared the bacterial species by analyzing their genomic s...

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