Researchers Find Fas Ligand Is Important In Blinding Disease
...ls that migrate from the choroid whenblood vessels invade the retina in the wet form of macular degeneration. Theylooked under the microscope at specimens taken from human subjects and foundthat the RPE cells were positive for FasL and that the cells on the surface ofthe growing blood vessels were positive ...Mechanism For Fungal Adherence Found, Possible Key To Disease
...e,it will be less likely to invade and cause more severe infections." Sundstrom has filed for a patent based on her research. Along with Staab, Sundstrom and Bradway, P.L. Fidel of Louisiana State University contri...Powerful Anti-AIDS Agent Found In Tears And In Urine Of Pregnant Women
...virus, potentially interfering with its ability to invade immunecells. The ribonucleases may target viral RNA, possibly affecting viralreplication. The new study, published in the March 16 issue of The Proceedings of theNational Academy of Sciences, caps an intensive five-year search for thepowerful an......bacteria from an infection at any site in the body invade the bloodstream,a condition known as septicemia, patients typically experience a variety ofsymptoms, including chills and fever, and the bacteria are able to travelthroughout the body. In 40 to 70 percent of these cases, septic shock follows,characte...UCSF Lab Makes Observation That Could Explain Ability Of Modified Cold Virus To Kill Cancer Cells
...the adenovirus of E1b, the virus wouldbe unable to invade normal, healthy cells, because they would contain functionalcopies of the p53 gene that would prevent the virus from replicating. But for the same reason, he surmised that the altered virus would be able towreak havoc on cancer cells that had alrea...Discovery Of 13 Genes Expressed In Brain Tumors May Lead To More Effective Diagnosis Or Prevention
... cells, grow withoutlimit, or how they are able to invade other parts of the body. "Our goal is to find which genes are expressed exclusively in tumors so that wecan devise new strategies to block those genes and prevent tumor growth," saidDr. Ljubimova, who joined the Institute in mid-1998 to help esta......bacteria from an infection at any site in the body invade thebloodstream, a condition known as septicemia, patients typically experiencea variety of symptoms, including chills and fever, and the bacteria are ableto travel throughout the body. In 40 to 70 percent of these cases, septicshock follows, characte...Scientists target microbe with sleeker antisense agent
...al sections of molecules whichorganisms rely on to invade their human hosts. Led by Douglas H. Turner, a team of researchers at the University tested itstechnology, where scientists create a complementary copy of a strand of RNA inan attempt to knock out a specific RNA molecule from the organism Pneumocysti...Single amino acid change in herpes virus prevents it from infecting neurons
...f itself. Withoutmaking multiple copies, it can't invade nearby neurons, report the researchersin the July 9 issue of the Proceedings of the National Academy of Sciences. From the moment the herpes virus enters the body, it is under attackfrom the immune system. Its goal is to get from the point o...Transformation of normal human cells into cancer cells
... determine exactly which genes cause the tumors to invade neighboringtissues. The Weinberg lab also is exploring the molecular mechanism that activates thetelomerase gene in cancer cells, a subject of immense interest to cancerresearchers. This study was supported in part by Merck and Co., the U.S. Nationa...Team of 200 scientists presents new research that reveals full 'tree of life' for plants
...nplants (green algae) still live in the water. To invade the land, green plants had to adapt ways to keep from drying out andto reproduce. "In the water, you can just dump your gametes -- reproductivecells, such as egg and sperm -- into the water and they find one another," saidMishler. "Everything swims....Ancient viruses lurking in polar ice
...uses had retained the protein coats that help them invade cells. ButCastello says they probably needed their coats to survive for hundreds of yearsin the ice. The team says that a brief rise in temperature could unleash theentombed viruses. "The ice is melting constantly around the poles," says Roge...Researcher finds plant toxin that causes fungal suicide
...ons with osmotin, yeast acts the same asfungi that invade plants. Bressan added osmotin to a culture of yeast cells, just as a plant naturallywould send the compound out to fend off an attacking fungus. Defensive proteinsin the yeast cell walls caught and stopped some osmotin molecules, but not all.Some got...Striking back at biological invaders
...tinelytransported into new habitats where they can invade and disrupt nativeecosystems. A special news section in the 17 September issue of Science provides an exclusive look at how scientists around the world are learning topredict and fight these biological invasions. As we shrink the size of the Earth w...USGS fire research in the southeast
...n-native species, which often havethe potential to invade new areas in the wake of a severe disturbance. Grace says that in the year following the fires, the plant response has beenencouraging. Fire is actually very good for the native plants, she says.Although the 1998 fires were very damaging economi...A molecular chink in the armor of tuberculosis
...o person by aerosol infection, but it first has to invade the lungs to propagate," said Jacobs. "If we understood how TB propagates in the lungs, we’d have a much better idea of how to combat the infection." The rapid emergence of drug-resistant strains of M. tuberculosis has placed a premium on the...A relative of smallpox is first virus found to invade cells as HIV does
...to smallpox uses the same route of entry as HIV to invade its host. This is the first virus other than HIV known to exploit structures called chemokine receptors on the surface of immune cells. Its discovery strengthens a new theory on the origins of a rare, life-saving immunity to the AIDS virus. Like HI...Non-toxic peptide blocks spread of prostate cancer in rats
...rrounding damaged tissue, which stimulates them to invade and repair the injury. The downside to this proc...tate so that intact fibronectin stimulates them to invade surrounding tissue also. "Cancer is the price we pay for our ability to heal from wounds," Livant s...International trade imperils U.S. plants, animals and crops
...ect corn farmers; or weeds, such as thistles, that invade cropland. Alien weeds like spotted knapweed, star thistle and cheat grass reduce the quality of rangeland for grazing cattle, while fungi and insects plague both croplands and forest trees. A recent arrival is the Asian long-horned beetle, first dete...USGS scientists find new population of Asian swamp eels in south Florida
...shes have the attributes necessary to successfully invade and colonize the Everglades and other freshwater southeastern wetlands, where they could adversely affect native fishes, amphibians and invertebrates through predation," said Curnutt. "They have the potential to disrupt food webs, eat native species,...