Several minute intermediate stage in virus-cell fusion discovered; opportunity for drug development
...ce inside the cell, the invading microbe's genetic material takes over, turning the 'host' cell into a factory...r the pore to enlarge sufficiently for the genetic material to pass into the host cell." The researchers are excited by this study because even a brief pause d...Unweaving amyloid fibers to solve prion puzzles
...cuits. "These findings are quite relevant for the material sciences," says Lindquist. "The more we understand about how these fibers work, the more we can get them to self-assemble," a key advantage for nanoscale devices that are very difficult to manipulate directly. In addition, amyloids are also unusually......of two stable isotopes, 13C and 18O in the organic material and leaf-water of the plants. These isotopes accumulate in the plant over time and are indicators of photosynthesis and water evaporation, respectively. Because the plants are subjected to conditions such as fog and high rainfall, the levels of these...Sugar helps control cell division
... from proteins causes the cell to copy its genetic material and make new nuclei, but to fail to divide in two.... uniformly through the entire nucleus, the genetic material of these cells was bunched up, giving the contents of the nucleus a "wrinkly" appearance. Exactly w...From a Few Wild Ancestors, a Citrus Cornucopia
...reeding efforts probably won’t receive new genetic material from the area of origin because of the threat of habitat loss and the political challenges surrounding international exchange of plant materials.?/p> Citrus In Situ In situ preservation—conserving plants and organisms in their indigenous habitat...Toxic flood lifts lid on common urban pollution problem
...aminants. "If you pick up this potentially toxic material before it gets into the hydrological cycle, it is far more economical than if you try to take it out of the water after the fact," he said. ...Researchers Create DNA-Based Sensors for Nano-Tongues and Nano-Noses
...connected together and then rolled. It is a unique material in which every atom is on both the surface and the interior. Although nanotubes have many applications, they are extremely sensitive to electrostatic variations in their environment, whether the nanotube is in a liquid or in air. "When the DNA porti...Nanotubes inspire new technique for healing broken bones
...rosis. In a typical bone graft, bone or synthetic material is shaped by the surgeon to fit the affected area,...today are realizing that mechanical mimicry of any material alone cannot succeed in duplicating the intricacies of the human body," Haddon says. "Interactions o...How HIV disables the cells' call for help
... of immune cell to come to the rescue. The genetic material of the virus, which is basically a strand of RNA, then forces the cell's DNA to make copies of it. Newly minted viruses created by the host DNA later break out of the cell membrane to infect other cells. Many believed that the very act of breaking in...Acid water in East Java threatens biodiversity and local welfare
... also very low. The inhibited breakdown of organic material was another ecological effect measured. Lohr established this using packs containing jati and bamboo leaves, which she suspended in the river at various locations. She determined the loss dry matter over a period of several months. Solution Acco...Making plant cells work like miniature factories
...lecules that have been electrically charged. Plant material is ionized into a gas, sorted in an analyzer chamber according to the mass-to-charge ratios, and collected by an ion detector. The detector converts ion flux into a proportional electrical current. Finally, the magnitude of the electrical signals is ...India's smoking gun: Dino-killing eruptions
...ought to have been the surfacing of a plume of hot material from deep in the Earth's mantle. ...Less virulent strains of avian influenza can infect humans
...umans, giving them the opportunity to swap genetic material with human strains, which could result in a more virulent virus. Researchers in Italy studied outbreaks that occurred among poultry between 1999 and 2003, to determine the risk of avian influenza virus transmission to persons in contact with the an...Genetically modified maize not found in southern Mexico
...can test for very low concentrations of transgenic material in maize seeds. The researchers were looking for traces of two key transgenes ?one or both of which are found in all GM maize crops. Test results showed no evidence of the presence of either transgene from any of the seeds. "We now know that transg...Transplanting Animal Organs Could Soon Be A Reality
...umans, giving them the opportunity to swap genetic material with human strains, which could result in a more virulent virus. Researchers in Italy studied outbreaks that occurred among poultry between 1999 and 2003, to determine the risk of avian influenza virus transmission to persons in contact with the an...First Whole Genome Map of Genetic Variability in Parkinson’s Disease
...umans, giving them the opportunity to swap genetic material with human strains, which could result in a more virulent virus. Researchers in Italy studied outbreaks that occurred among poultry between 1999 and 2003, to determine the risk of avian influenza virus transmission to persons in contact with the an...Eating, body weight regulated by specific neurons
...umans, giving them the opportunity to swap genetic material with human strains, which could result in a more virulent virus. Researchers in Italy studied outbreaks that occurred among poultry between 1999 and 2003, to determine the risk of avian influenza virus transmission to persons in contact with the an......umans, giving them the opportunity to swap genetic material with human strains, which could result in a more virulent virus. Researchers in Italy studied outbreaks that occurred among poultry between 1999 and 2003, to determine the risk of avian influenza virus transmission to persons in contact with the an...New study finds how cells with damaged DNA alert the immune system
...nts associated with impairment of a cell's genetic material -- the DNA damage pathway -- was exposure to radiation and chemotherapy drugs. They found that cells in which the DNA damage pathway was triggered were the ones that exhibited an increase in the expression of special proteins on the cell surface. Th...