A new weapon to disable bacteria discovered
...nfected with bacteria equipped with highly evolved defenses that target white blood cells, the very cells that... retain the Shigella long enough to mobilize other defenses that can destroy the bacteria. Indeed, neutrophils with inactivated elastase cannot contain Shigella...Stanford researchers create diabetic fruit flies in lab
...lies and humans, including the genes and molecular defenses used by the two systems. Because of this similarity, researchers have been able to learn more about the human immune system by studying flies. Rulifson said the same could be true for insulin-producing cells. "If the fly cells are using the same mole...Mosquitoes repelled by tomato-based substance
... tomato's natural defenses against insects, to see if it might be used to control worms that eat tomatoes. Roe revisited the compound and tested it as a mosquito repellent. ...Deformed frogs form when parasites and pesticides combine
...mb deformities if the larvae are able to evade the defenses of the tadpole's immune system long enough to transform themselves into hard cysts. If the location of the cyst is on cells that are supposed to develop into legs, the cyst will cause growth disruptions that lead to missing limbs, split limbs, or mu...Growth hormone may stimulate production of T cells to boost body's ability to fight HIV
...HIV attacks and destroys, leaving patients without defenses against the opportunistic infections of AIDS. Laura Napolitano, MD, lead investigator of the study, presented the research on July 11 at the 14th International AIDS Conference here in Barcelona. Napolitano is a staff research investigator at Gladston...Code-breaking insects steal plants' defensive signals, enabling counterattack
...e a form of molecular code-breaking to ready their defenses against a chemically protective shield employed by...s found that the earworms ability to mount its own defenses begins with exposure to very low levels of jasmonate and salicylate. The exposure of earlier stage ...OXiGENE, foundation fighting blindness sign research agreement for phase I/II clinical trial
...like Trojan Horses -- can deftlyevade the retina's defenses and combat degenerative diseases," saidGerald J. Chader, Ph.D., M.D., hc, The Foundation's chief scientificofficer. "The preliminary CA4P data presented at ARVO (Association forResearch in Vision and Ophthalmology) suggests that the compoundinhibits ...University of Pittsburgh findings published in Science illustrate how KSHV causes cancer
... cancers because they have evolved to subvert cell defenses and make use of the same signaling pathways that are used to suppress tumors to instead cause tumors to grow," said Dr. Chang. "In other words, the virus is able to sense its environment and modify that environment to make it more habitable for the v...Puzzle solved on how influenza builds its infectious seeds
...irus is capable of changing to avoid immune system defenses and vaccines deployed against it. The report by Kawaoka's team lends support to one of two competing models proposed for the generation of infectious influenza A virions. One view held that the RNA segments assembled in a random manner, depending ...Insect antibiotics Resistance is futile!
...) For antibiotics, the best way to beat bacterial defenses may be to avoid them altogether. Researchers at University of Pennsylvania School of Medicine have discovered that Cecropin A, a member of a family of antibiotic proteins produced by insects, may kill bacteria and avoid resistance by entering bacteri...Discovery of iron-acquisition pathway suggests new treatments for drug-resistant Staph. infections
...n very little free iron, one of the most important defenses against infections. So bacteria have evolved specialized mechanisms to obtain iron from a host's body. Hemoglobin is the most abundent source of iron in the human. Schneewind and colleagues found that the Staph. aureus genome contains a family of ir...Bright beaks provide honest look at male immune system, Science study says
... the bloodstreams of zebra finches enhanced immune defenses and reddened beak color. These males were also more attractive to prospective mates. The French researchers approached carotenoids and immune function from a different direction. They started with a baseline carotenoid balance based on the blackbirds...Arsenic in drinking water may be linked to cancer Dartmouth study finds
...otide excision repair -- one of the body's primary defenses against DNA damage caused by environmental agents. Normally, these genes code for proteins that unwind DNA, cut the damaged DNA parts out, seal the repaired DNA back together, and help determine which cells are irreparable and must die. "It is oft...Scientists find genetic key to TB bacteria survival in lung cells
...sing proteins to help it survive the lungs' immune defenses to spread and cause disease. The study, published online in the April issue of Molecular Microbiology, also adds crucial new knowledge to the molecular factors that underlie the virulence of M. tuberculosis and may aid development of new, targeted tr...Study of bacterial enzyme reveals one key to cancer cell survival
...g bacteria withstand attacks by the body's natural defenses turns out to be a key to human cell survival and growth and may help explain why cancer cells can multiply unchecked. Leslie B. Poole, Ph.D., of Wake Forest University Baptist Medical Center said the explanation begins with the way that bacteria -- s...Secrets of drug resistance in bacteria
...drug resistance. As the team learned, these robust defenses are rooted in the protein complex's remarkable ability to capture and pump out a spectrum of structurally diverse compounds. The research may inform the development of antibiotics that either evade or inhibit these pumps, allowing drugs to slip insid...Virus researchers close in on the secret life of DNA
...nate configuration of DNA, is involved in cellular defenses against viral attack according to the results of ...Specifically how Z-DNA binding affects mouse cells defenses against viruses still remains to be seen, said Jacobs, but the current experiments' results point to...Seaweed uses chemical warfare to fight microbes
...pecies, it is possible that antimicrobial chemical defenses are more common than previously believed and that L. variegata may be one of many species that use natural antibiotics to defend against infection, Jensen said. Jensen devised a bioassay to measure the antimicrobial potential of a common seaweed spec...Close communication between identical twins helps them live longer
...really just beginning to understand how the body's defenses are compromised by life circumstance to affect health," said Syme, now a professor emeritus of epidemiology. "For these identical twins, it's not just communication and it's not just genetics. You can't explain it just with biology or with the social...Protein that fights bacteria and viruses cloned by Scripps scientists
...detection systems are different, the actual immune defenses the body employs to clear the system of viral or bacterial infection are much the same. As are the symptoms--to you or me, fighting off bacteria or viruses can produce the same fatigue, inflammation, or hacking cough. Now a team of researchers at Th...