Cigarette smoke causes breaks in DNA and defects to a cell's chromosomes, Pitt study finds
...wn to cause cancers. While the researchers did not expose cells to actual puffs of smoke, the cigarette smoke condensate they used was derived from burning real cigarettes and obtained from theR.J. Reynolds Tobacco Company. Containing mostly particulates, the extracted smoke was liquefied as part of a solve...Students build submarine to track Octopuses
...ver thought we would have to take the dome off and expose the computer parts to salt air, but, of course, we immediately blew some fuses and had to remove the dome. So we had all this moist, salty air getting into everything." Lesson learned. Students will repackage all the electronics inside the sub to pro...Researchers identify gene for a primary form of sudden infant death sydrome (SIDS)
... TGen, and the paper's senior author, has begun to expose the distinct genetic causes behind these deaths. "This is one of the first genetic sub-classifications of SIDS," Stephan said. "And it's going to be helpful in offering parents answers for sudden infant deaths, recognizing predisposition ea...Male susceptibility to disease may play role in evolution of insect societies
... food or building materials, activities that might expose them to disease pathogens. "If males were exposed to disease we would expect females to avoid, and possibly to attack and kill those males to minimize disease being brought into the colony." The sick-male theory proposes that female-biased societ...Researchers find evidence that sea turtles navigate with magnetic maps
...water in the center of the coil so that they could expose the turtles to various magnetic fields while observing the direction in which they swam. "We captured juvenile turtles using a 400-meter net stretched parallel to the coastline," Catherine Lohmann said. "Each turtle was placed in a cloth harness and ...Clemson dedicates biotech research complex
...es to thrive in the gene age. Their mission is to expose students to principles of genetics and disease risk, to provide the opportunity to do hands-on experiments with DNA, and to provide access to genetic information to families and individuals when they need to make informed health care choices. The ...DNA chip will catch beefed up chicken
...ly contains goose liver. The test could also help expose scams like the one uncovered in Europe last May, in which a few poultry producers were caught bulking up chicken meat with beef and pork waste. As well as posing a possible BSE risk, the scam also meant that people whose religions forbid eating pork...Out-of-balance ecosystems play role in demise of amphibian populations
...neys of tadpoles." The lack of vegetation also may expose tadpoles to more trematodes coming from the infected snails, because the tadpoles cant hide or use the vegetation to brush off the parasites, Schotthoefer said. So while the parasites seem to contribute to declines and deformities in frog populations...Research reveals brain has biological mechanism to block unwanted memories
...ing about it," Anderson said. "If you consistently expose people to a reminder of a memory that they don't want to think about, and they try not to think about it, they actually don't remember it as well as memories where they were not presented with any reminders at all." Implications of the study Gabrie...Easily paralyzed flies provide clues to neurodegeneration
... modern genetics and molecular biology. But if you expose them to slightly elevated temperatures in the range of human body temperature, "in less than 10 seconds, some mutants are completely paralyzed. Others become totally incapacitated by convulsive seizures. It's like flipping a switch. All we change is ...Unraveling a protein, researchers uncover mechanics of anti-cancer agent
...tretched, the proteins change their structures and expose chemically active groups. Once exposed, anastellin enhances the ability of the proteins to form networks. "The cells use anastellin apparently when it arises in half-unraveled FN-III-1 to strengthen the glue effect of the matrix," said Mu Gao, a doct...Scientists work to break cellular code
...ell in response to distinct stimuli. For example, expose a yeast transcription factor called Ste12 to a certain pheromone from a potential mating partner, and it induces a mating response. But starve the yeast for nutrients, and the same transcription factor provokes filamentation the yeast begins to spro...Case Western Reserve University scientists test protein as early cancer detection agent
... requires either a guess or mice, because we can't expose humans to the radiation that helped us get to these findings. Humans and mice share many genes, so it was much easier to use strains of genetically identical mice," Boothman said. Case scientists test protein as early cancer detection.... add one T...Protein is shown to aid cell's reading of genetic code
...ufacture a particular protein, nucleosomes open to expose the part of the chromosomal DNA where the gene for that protein is located. This allows an enzyme called RNA polymerase II to contact the gene to transcribe its code onto another molecule called messenger RNA. In turn, the messenger RNA travels out ...Purdue instrument to fashion custom-made proteomics chips
...of hours. Once the surface is prepared, scientists expose it to a solution containing chemical or biological reagents that might react with those on the chip. They then examine the surface visually or with other analytical techniques to determine which of the hundreds of protein "spots" have reacted. "By th...Brookhaven Lab & Battelle collaborate on research that may lead to novel anti-microbial drugs
...n she will purify each enzyme, crystallize it, and expose it to x-rays at the NSLS. A detector records a pattern from the resulting scattered x-ray beam, which allows Bewley to determine the enzyme's structure. During the first year of the CRADA, Battelle will identify business opportunities to market compo...New national studies show combined hormone replacement therapy boosts stroke, dementia
...who are free of menopause-related symptoms but did expose them to a slightly higher risk of heart attacks, strokes and breast cancer. For that reason, many medical scientists began recommending against the combined therapy in the absence of such symptoms, saying the risks of estrogen plus progestin outweigh...Molecular machine shuffles beads on a DNA string
...ne that shuffles the nucleosomes out of the way to expose the DNA double helix. Postgraduate researchers An... right place, push the nucleosomes out of the way, expose the DNA double helix and begin the process of stitching a new piece of DNA into place. The work is ...In a noisy world, how can the senses project and receive information at the same time?
...ticene well and its ventral cuticle was removed to expose the abdominal and thoracic ganglia. The thoracic or thoracic and abdominal nerves were cut, except for prothoracic nerve #5, which contains the auditory afferents. Care was taken not to damage the main ventral trachea. To deafen crickets, the foreleg......y research." The scientists scratch the leaves and expose the wound to bacteria carrying the beneficial genes. Treated leaf-disks, with their enhanced genomic structure, are then cloned, producing trees with predictable qualities. As with any research involving genetic engineering, Chiang's modified aspens ...