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Tag: "antibiotics" at biology news

Small, self-controlled planes combine plant pathology and engineering

...ravel long distances in the atmosphere. By placing antibiotics in the sampling collection plates, researchers can ensure that only Fusarium will grow on the plates. Over the course of 75 different UAV-sampling flights above agricultural fiends at Virginia Tech’s Kentland Farm, Schmale and his colleagues collecte...

Could fungal collection hold the key to new life-saving drugs?

...ny years. These include immunosuppressive agents, antibiotics such as penicillin, lipid lowering agents and anti-fungal drugs....

Staphylococcus aureus hides out in cells

...a may evade the immune system’s defences and dodge antibiotics by climbing into our cells and then lying low to avoid detection. New research in the online open access journal BMC Genomics shows how S. aureus makes itself at home in human lung cells for up to two weeks. A team of 12 researchers from University ...

Researchers discover 'acquired' DNA key to certain bacterial infection

... CDC also notes that the bacterium’s resistance to antibiotics – already a problem – may be increasing. In contrast, the incidence of lung infection in patients with chronic lung diseases and cystic fibrosis is increasing. Understanding the mechanism by how M. avium penetrates the macrophage and infects human...

Understanding why C. difficile causes disease -- it's hungry

...estinal tract are reduced such as when people take antibiotics or other antimicrobial drugs. Then, C. difficile can cause symptoms ranging from diarrhea to life-threatening inflammations of the colon. In 2002 a new, more virulent strain began appearing in hospitals in the United States and Canada. Recently, t...

Genome of Clostridium botulinum reveals the background to world's deadliest toxin

... involves evading the immune system and countering antibiotics — to the single-minded opportunistic approach of C. botulinum....

Maggots rid patients of MRSA

...in a three year period, possibly due to overuse of antibiotics and the selection of broad rather than narrow-spectrum antibacterial agents. This led to their first study, funded by Central Manchester and Manchester Children's University Hospitals NHS Trust (CMMC) Chairman's Prize Award. They treated 13 patien...

Researchers develop way to calculate speed of bacterial sex

...potentially harmful bacteria that are resistant to antibiotics and increase gene flow from genetically modified organisms to native soils. By developing a real-life model of bacterial gene transfer, UC-Davis researchers hoped to gain insight into the rates of bacterial adaptation in the environment. They report ...

Cow protein aids in treatment of gastrointestinal disorder

... “Various studies are under way to evaluate new antibiotics and different therapeutic methods to increase the efficacy of H. pylori therapy,?says lead author Nicola de Bortoli, M.D., Ph.D., adding that “data suggest that antibiotic resistance is frequent and clinicians are realizing that use of an additional ...

Growing nerve cells in 3-D dramatically affects gene expression

...roliferation of cancer to the bacterial assault by antibiotics ?may play out differently. Studies indeed show differences in behavior between cells cultured in 2-D and in 3-D. Cells cultured in 3-D, for example, grow faster. Hoffman-Kim, an assistant professor of medical science and engineering at Brown, want...

A new portable biosensor detects traces of contaminants in food more quickly and cheaply

...ong lasting effects on the environment- as well as antibiotics in food. The biosensor is faster, more portable an...rcial orange juice, as well as to detect traces of antibiotics in cow's milk. The agricultural use of atrazine, and other herbicides based on a chemical substanc...

Corals that can fight global warming may one day help fragile reefs

...provided by surface microorganisms ?[that] produce antibiotics that can help corals fight pathogenic bacteria," reported Harvell. However, not all corals are able to produce such defenses under thermal stress. "Some corals show unusual resilience to the double threat [of pathogens and warming seas], and we sho...

Natural antibiotics yield secrets to atom-level imaging technique

... to explore the germ-killing properties of natural antibiotics called antimicrobial peptides (AMPs), which are produced by virtually all animals, from insects to frogs to humans. AMPs are the immune system's early line of defense, battling microbes at the first places they try to penetrate: skin, mucous membrane...

Study finds antibiotic resistance in poultry even when antibiotics were not used

...eorgia scientists suggests that curbing the use of antibiotics on poultry farms will do little ?if anything ?to r... concerns led the European Union to ban the use of antibiotics for growth promotion in chickens in 2006. In 2005, the U.S. Food and Drug Administration banned the ...

Bacterial walls come tumbling down

...the journal Science. Penicillin and many newer antibiotics work by blocking a piece of the machinery bacteria...a. And it is accessible; you don't have to get the antibiotics into the cell." In their structural studies, the researchers focused on Staphylococcus aureus, a ...

Drug-resistant bacterial infections serious complication after corrective eye surgery

...e infection was cultured and found to be MRSA, his antibiotics were changed and his vision recovered to 20/200 over the next two weeks. The patient is awaiting further surgical treatment. Writing in the article, Eric D. Donnenfeld, MD, advises that, "MRSA infectious keratitis is a potentially serious complica...

Chlamydia vaccine a step closer to reality

...-term chronic pelvic pain," he said. "There are antibiotics to treat Chlamydia, but there's no vaccine to prevent it. In many cases women don't know they are infected because there are not really any physical signs or symptoms, so by and large they don't get treatment." Professor Timms said Sanofi-Pasteur ...

Anthrax attack posed greater potential threat than thought

...er hand, the study shows, prompt intervention with antibiotics and vaccination appeared to be highly effective ag...ikely to have been exposed to the spores, received antibiotics or a vaccine, as did others within or outside the building, and no deaths resulted from this act of ...

Antifungal drug kills TB bug

...ople in places like India or Africa would be given antibiotics but often not in sufficient quantities to kill the bug completely; this is how resistant strains develop and these regions have become huge breeding grounds for these ‘super strains?" Funded by the EU’s NM4TB (new medicines for tuberculosis) proje...

Protein discovery targets antibiotic-resistant bacteria

...y or “immune compromised?where there is a need for antibiotics to clear the infection. Since the organism that causes salmonellosis is related to that responsible for typhoid fever ?a huge problem in less developed countries ?the model being developed at Queen’s could potentially be a target for treating typhoid...

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