JCI table of contents, December 1 2004
...ed on the cell surface to activate nave T cells to kill the pathogen. Natural killer (NK) cells are among ...ion or inflammation and their major function is to kill their target cells. In the December 1 issue of the Journal of Clinical Investigation, Ofer Mandelboi...Read your shampoo's label: Study finds common ingredient stunts developing neurons of rats
...obial agent, or biocide, MIT and related compounds kill harmful bacteria that like to grow near moisture or water. As such, they often are found in personal care products, as well as in water-cooling systems and at factories that require water for manufacturing. Since learning about MIT, Dr. Aizenman has ...Scientists discover key egg enzyme for blocking sperm entry after fertilization
...nse to an infection, but its harmful effects often kill the cell producing it and, as a result, these cell...bryo. "Peroxide is what we put on skinned knees to kill germs and on hair to get that summer sun-streaked appearance. It is not something we would expect an...Free radicals and fertilization: Study reveals egg protection secret
... which use a similar burst of hydrogen peroxide to kill bacteria," Wong said. "So we always thought that the mechanism would be similar. But what happens in the egg is more like what happens in the thyroid, suggesting that this Udx1 mechanism is versatile and non-lethal." "Nature is thrifty," said Gary We...Cigarette smoke a culprit in poor healing and increased scarring
...ke, at levels found in tissues of smokers, did not kill the fibroblasts, but instead injured them in a way that allowed them to turn on certain genes that improved their survival. However, it was cell survival at the wrong time and in the wrong place, in terms of properly forming healing tissue. Durin...New weapon in germ warfare: 'Jamming' bacteria signals stops cholera
... fibrosis-related infections. Furanones do not kill such microbes but simply "jam" their ability to se...harder to treat. "Because furanones don't kill the bacteria, there is no selection pressure for them to develop resistance. Indeed, in a million y...International team finds gene variants that affect response to HIV infection
...oreign proteins presented by the HLA molecules and kill the infected cell, thereby stemming the infection. The research team found that an individual's response to HIV infection depends heavily on the varieties -- or alleles -- of the genes encoding HLA molecules that the person has. But not all categori...Purdue scientists hunt for 'secret X' to treat liver cancer
...mechanism-based treatment," she said. "Rather than kill all rapidly-dividing cells in the body - the healthy ones along with the cancerous ones - we would like to target the cancer cells alone. We are taking the next steps toward that goal now." That next step involves work with live animals ins...Dwarf mistletoe reveals its sexual secrets
...life, would likely be safe from whatever we use to kill the pathogen." Mistletoe's association with sacred winter celebrations, fertility and kissing is an ancient one, extending back into pre-Christian Europe. The European mistletoe parasitizes apple and oak trees and thus in winter stands out in brilli...NASA finds trees and insect outbreaks affect carbon dioxide levels
...ide level is that the six-legged creatures eat and kill trees and other vegetation. When the amount of greenery is reduced on Earth, the remaining plants take in less carbon dioxide. As a result, say scientists, more of this gas remains in the air, instead of being trapped in wood, fiber, leaves and other...New monkey discovered in Northeastern India
...o not hunt the macaques for food or sport, they do kill monkeys in retaliation for crop raiding. Further studies will determine whether the Arunachal macaque should be included on the World Conservation Union's (IUCN) Red List of Threatened Species and Schedule I of the Indian Wildlife (Protection) Act of...Essential oils could help to stamp out MRSA
...udit Office estimates that infections such as MRSA kill 5,000 people each year and hospital-acquired infections cost the NHS around 1 billion a year....Immune system contributes to evolution of a new fluorescent protein
...there is that if you induce too much mutation, you kill the organisms because you're frying all the genes they need," he said. "What we really wanted was an organism with cells that could rapidly produce mutations and target them to one specific gene," said Tsien. "To our surprise, that organism is us." S...Scientist discover the cellular roots of graying hair
...rate uncontrollably to form tumors and are hard to kill with treatment. "Preventing the graying of hair is not our goal," emphasizes David E. Fisher, MD, PhD, director of the Dana-Farber Program in Melanoma, and senior author of the Science paper. "Our goal is to prevent or treat melanoma, and to the exte...New painkiller was born in Utah
...ich is about 1.5 inches long and thus too small to kill people it stings, as do some larger cone snails. McIntosh discovered a component or "factor" in the venom affected the nervous system. He purified it and determined its chemical structure. Later, University of Utah biologist Doju Yoshikami determin...JCI table of contents, 3 January 2005
...esident intestinal macrophages have the ability to kill invading pathogens, they do not possess the receptors that recognize foreign pathogens, nor do they produce the molecules that trigger the inflammatory response. These characteristics distinguish intestinal macrophages from their precursors blood mo...Sardines may prevent toxic gas eruptions off the California and African coasts
...c gas eruptions, bubbling up from the ocean floor, kill sea life, annoy human seaside residents, and may even intensify global warming. But the simple sardine may save the day, according to a study from the Pew Institute for Ocean Science. In an article published in the November issue of Ecology Lett...Research turning up the heat on fowl bacteria
...ave things to eat. In fact, bacteria don't want to kill a host because then they run out of nutrients." All this exploitation requires being responsive to the environment. "Organisms can sense where they are in people and respond by changing their gene expression so they are making the right proteins for ...K-State professors develop vaccine to prevent abscess in liver of cattle
...es to survive. These white blood cells can in turn kill the bacteria. "That's not a new concept; it's been done with other bacteria," Nagaraja said. "But it was new for this organism that we were able to identify strains that are able to optimize conditions for production of large amounts of leukotoxins."......ody's own antiviral response, which would normally kill RSV before it could gain a foothold. "This is an exciting advance in the fight against respiratory syncytial virus infection," said Shyam S. Mohapatra, PhD, principal investigator of the study and director of basic research at the USF Division of All...