Evolvability could be a driving force in drug resistance
...han other cells in our bodies, as well as why some bacteria and higher-order organisms have a tendency to tran...tes. Deem and Earl argue that wide variation among bacteria and other antigens has put selective pressure on our immune systems to rapidly adapt methods of iden...Preschool bolsters early childhood immunity, reduces risk of young adult Hodgkin's lymphoma
... to such Th1-stimulatory antigens as intracellular bacteria and viruses. These include but are not limited to Epstein-Barr virus. "Children who are sheltered from contact with Th1-type antigens continue to be biased toward Th2 immunity, which promotes the development of asthma and other atopic conditions."...Revealing bizarre deep-sea secrets
...thetic clams and worms that rely on methane-eating bacteria for nutrition. The worms are plentiful around the seeps and attract a number of predators such as fish and deep-sea sharks. Finally, the group will travel to a bizarre site 150 miles southeast of New Orleans known as the Brine Pool. There, salt de...Viral proteins may prevent bacterial infections
...ickly destroy the bacterial cell wall, killing the bacteria and releasing the viral offspring. "These are hig...s is to decolonize humans from carrying pathogenic bacteria in certain settings, such as hospitals, nursing homes and day care centers," says Vincent Fischetti,...Bad news for pathogenic bacteria: Scientists find protein essential for bacterial survival
... current issue of the journal Cell , suggest that bacteria rely on a key protein in order to properly regulat...guring out how to block DksA production in harmful bacteria may help scientists develop antibiotics that these bacteria are less likely to resist, said Irina Ar...Dispute over life in Antarctic lake
...ms discovered in the ice are on the list. "We find bacteria in the accretion ice, but can eliminate most of th...d there. Bulat and colleagues believe there are no bacteria in the ice because the lake is too toxic to support life. If so, Lake Vostok will be the only known ...Babies with DiGeorge syndrome saved by immune supression, thymus transplant
... cells that help protect the body against viruses, bacteria and other pathogens. The thymus teaches T cells to fight infection while not attacking the infant's own tissues. Duke is the only center to offer thymus transplantation as a cure for the immune defect. Without this treatment, infants with complete Di...Whale carcass yields bone-devouring worms
...s, branching off from the egg sac, are filled with bacteria that break down oil in the whale bones.The scienti...rial decay of whale tissue. However, the symbiotic bacteria in Osedax spp. worms represent an entirely different evolutionary strategy-they break down whale-bon...Firefly compound lights up 'protein dance' in living animals
... to infect bacterial colonies, and then looked for bacteria that glowed. Of 19,000 bacterial colonies, approximately 120 lit up. The three brightest were further tested to determine which pair of fragments worked best. In a line of experimental mice, scientists genetically fused one member of the best pair ...Brookhaven lab biophysicist F. William Studier wins R&D 100 award
...stem, the new method relies on mechanisms by which bacteria sense the presence of nutrients in their surroundi...e. An appropriate mixture of nutrients allows the bacteria to grow vigorously and then, at the appropriate stage of growth, switch automatically to producing t...Good bacteria trigger proteins to protect the gut
...searchers indicate that the millions of beneficial bacteria living in the human gut may actually be helping to...everything we knew about the benefits of commensal bacteria had to do with their biological activity," said Medzhitov. "They metabolize nutrients to enable us t...K-State researcher working to improve alternatives to equine antibiotics
... the increasing occurrence of antibiotic-resistant bacteria presents a number of challenges for researchers in medicine. Veterinary medicine is no exception and Dr. Elizabeth Davis, assistant professor of equine internal medicine at Kansas State University, is working to help improve alternative methods for c...Scientists discover new intricacies in how ulcer bugs stick to stomach
...in the stomach, has evolved in many strains of the bacteria in Latin America. The protein is used by virulent ...void being flushed out by digestive processes, the bacteria stick to cells lining the stomach wall, from which they also steal nutrients. BabA, one of sev......uman white blood cells, in response to invasion by bacteria and fungi, create bleach and chlorine gas, an impo... to new cases of plants, animals, insects and even bacteria producing organohalogens. He catalogues the references and keeps track of them all. Gribble emphasi...Antimalarial substances found in New Caledonian sponges
...ural compounds potentially active against viruses, bacteria or cancerous cells, that could lead to the development of new medicines. Out of about 145 000 natural substances described today, 10% come from marine organisms. Among the few such organisms studied for their chemical composition, sponges of the genu...Tips from the Journals of the American Society for Microbiology
...s may be a breeding ground for potentially harmful bacteria say researchers from San Diego State University, C...a live oral vaccine containing B. melitensis WR201 bacteria and challenged intranasally with B. melitensis 16M bacteria. Results showed that immunized mice wer...Argonne scientists determine structure of staph, anthrax enzyme
...tal structure of sortase B, an enzyme found in the bacteria that cause staph and anthrax. While an antibiotic ...use most of it is bound in red blood cells. So the bacteria develop a mechanism to pry open the red blood cells, and these proteins help them. "This is actually...Oxygen sensing in worms may hold key to healthy blood pressure in humans
... to be a laboratory artifact," says Marletta. "The bacteria that the worms feed on concentrate at those borders. Since the bacteria are also consuming oxygen, the concentration of bacteria and the swarm of worms combine to lower the...'Anti-plume' found off Pacific Coast
...h the Earth may be enough to trigger the growth of bacteria at startling depths. Last year, in an unrelated st...rapher Martin Fisk and a team of researchers found bacteria in a hole drilled 4,000 feet through volcanic rock. Basalt rocks have all of the elements required f...UCSD biologists discover cell's defense mechanism against class of disease-causing bacterial toxins
...ral defense mechanism to ward off certain kinds of bacteria that secrete toxins in order to form tiny holes in...ctions." Pore-forming bacterial toxins are used by bacteria such as Staphylococcus aureus, the most common cause of hospital-acquired infections, which affects ...