Tag: "antibacterial" at biology news

Few microbiological differences in households using antibacterials

...ia or antibiotic resistance between those that use antibacterial cleaning products and those who do not. Researche...ckly dissipate from environmental surfaces, common antibacterial chemicals such as triclosan and quaternary ammonium compounds leave residues which can exert a more ...

Argonne research offers clues to Alzheimer's plaques

...re needed for physiological processes; others have antibacterial properties. Amyloid peptides are chains of 40 to 42 amino acid residues. Due to their unique chemical architecture, consisting of water-loving and water-avoiding amino acid sequences, Alzheimer's peptides "self-assemble" to form tangles of fibrils i...

Scientists at Scripps Research Institute address mysteries of ozone in the human body

... The work of the TSRI scientists suggests that the antibacterial effect of neutrophils is enhanced by antibodies. In addition to killing the bacteria themselves, the neutrophils feed singlet oxygen to the antibodies, which convert it into ozone, adding weapons to the assault. "This is really something new, and the...

ASM biodefense meeting scheduled for March 2003

...chers in the field of biological warfare Novel antibacterial countermeasures New approaches to vaccine development Using of nanotechnology to develop new diagnostics Comprehensive media facilities will be available. The press center will be located in the Baltimore Marriott Waterfront Hotel. Programs...

JCI Table of Contents, January 2, 2003

...alinfections in the non-immune host. One effective antibacterial strategy isphagocytosis, and virulent bacterial strains have evolved antiphagocyticstrategies. Searching for new virulence factors in group B streptococcus,Craig Rubens and colleagues isolated the cspA gene from a highly virulentstrain. As they repor...

New insights into insect antimicrobials point the way to novel antibiotics

...y. These studies are demonstrating that engineered antibacterial peptides can be used in a clinical setting against bacteria with resistance to existing antibiotics....

Dartmouth researchers identify multi-tasking circadian protein

...says. "But, if you want to do therapy--antifungal, antibacterial or anything--you start looking for biochemical activities that the host does not have that can be targeted to the pathogen." Froehlich, working with Dunlap and Loros, built on their discovery that the gene frequency encodes a central cog of the biolo...

'Rock-paper-scissors' preserves biodiversity in bacterial neighborhoods

...a plasmid) that serves as the blueprint to make an antibacterial toxin, or antibiotic, called colicin. The plasmid also encodes a protein that renders the bacterium immune to its own colicin and a protein that causes colicin to be released when the cell is under stress. Colicin-producing bacteria can kill bacteria...

New way found to see light through novel protein identified by Dartmouth geneticists

...on't have. "If you want to do therapy--antifungal, antibacterial or anything--you start looking for biochemical activities that the host does not have that can be targeted on the pathogen." Froelich, a graduate student with Dunlap and Loros, built on their discovery that the gene frequency (frq) encodes a central...

Brookhaven Spotlights: News from the National Synchrotron Light Source

...proteins, such as complexes involving lysozyme an antibacterial protein and a new form of insulin. This method shows great promise for wide application in the pharmaceutical industry. A Major Milestone Toward Producing Intense Ultraviolet Synchrotron Light NSLS scientists are developing a new light source, call...

Discovery of bacterial 'touch sensor' could lead to biofilm treatments

...ffective strategy for developers of drugs or other antibacterial agents aimed specifically at biofilms. When bacteria join together as a biofilm, they become much more resistant to antibiotics than when they were free-floating, said Silhavy. Many kinds of bacteria commonly found in liquid environments naturally fo...

DNA arrays give clues to better vaccines

... to trigger a generic alarm, which called on other antibacterial defenses of the immune system, the majority of changes triggered in the macrophage involved cell surface proteins and signaling molecules. Such changes generate new functions in the macrophage, suggesting a maturation process similar to that observed...

Tips from the Journals of the American Society for Microbiology: January 2002

...s began exploring the potentialof these viruses as antibacterial therapies in the early 20th century, buta combinat...rial strains requires theexploration of alterative antibacterial therapies," say the researchers. "In the present study we report the isolation of bacteriophage that...

Compounds in garlic fight malaria and cancer

...s and are known to have antifungal, anticancer and antibacterial properties. For years scientists have suspected that one of these compounds in garlic may be helpful against malaria and have proven it in animal models. Crandall and his colleagues, though, were more interested in understanding how these disul...

Vegetable 'immune systems' protect better against food spoilage

...he horticultural ranges of 43 spice plants and the antibacterial properties of each spice. Billing and Sherman concluded that the original function of spices, particularly in hot climates before the advent of refrigeration, was to kill or inhibit food-borne bacteria and fungi. "But plants don't need as much prote...

Antibiotics, yogurt seen as potential treatment for common liver disorder

...ily cup of yogurt, which has been shown to have an antibacterial effect, or take an oral antibiotic every day to minimize their chances of getting fatty liver," Diehl said. "Of course, yogurt would be easier and less expensive than antibiotics."...

Honey as healer

... studies have established that honey has effective antibacterial and anti-inflammatory properties. It painlessly re...tion in burn wounds than silver sulphadiazine, the antibacterial ointment most widely used on burns in hospitals" says Dr. Molan. The significance of the case of th...

Antimalarial drug may point way to new class of antibiotics

...at one of these drugs had some antibacterial activity of a very marginal na... used to screen substances for antibacterial activity. "They killed these bacteria extremely rapidly; they were extremely ...

Researchers identify novel penicillin-resistance gene in pneumonia bacteria

...uropeptides is a good target for the design of new antibacterial drugs that would work synergistically with penicillin to treat resistant pneumococcal disease. Inhibitors of the synthesis of branched muropeptides may also reduce virulence of pneumococcal infections. The principle of using a combination of two drug...

Nature's path leads scientists to new antibiotic strategy

...cules like antibiotics." The design of the new antibacterial agents involved mimicry of naturally-occurring pep...go far, Gellman said in an interview. "In terms of antibacterial activity, we've already matched the benchmark. Because our molecules are unnatural they shouldn't be...

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