Researchers develop mouse model of Rett syndrome
...tein and its loss is now instrumental. Things fall apart and people regress. Perhaps key genes that are important at certain times are not put in place. We don't know the mechanism but having this mouse model will allow us to ask these questions." Zoghbi is hopeful that studying the mouse model will also ...Just one bite at a time: Researchers find snake with unusual feeding habit
...apore, feasts on soft-shelled crabs which it tears apart and swallows one bite at a time. The discovery by ...elf into a loop and uses the loop to hold and tear apart its prey. The ability to rip the crabs apart was a surprise, because snake teeth are not adapted for...Unique feeding behavior discovered for snakes
...s have discovered that a species of snake can tear apart its prey. This snake loops its body around a crab ...ecies, Fordonia leucobalia, was also found to pull apart oversized prey, but it has hypertrophied cranial musculature and short, blunt teeth that facilitate ...Complex gene-swapping spawns a form of lymphoma
... occurred where the RAG enzyme would normally snip apart DNA. In a key set of experiments, the researchers used a technique called spectral karyotyping to analyze in detail the breakage and rearrangements of the chromosomes in the lymphomas. "Basically, this technique traces chromosome rearrangements by 'p...Protein simulation can be done three times as fast
...ural and during the next interval they are further apart than is actually possible. Biologically interesting processes such as the folding of proteins, occur in a matter of milliseconds. For this the fastest Pentium has to calculate day and night for 200 years. Supercomputers can perform these calculations...New cellular evolution theory rejects Darwinian assumptions
...ion, he argues. "It has set Homo sapiens entirely apart from its (otherwise very close) primitive relatives, and it is bringing forth a new level of biological organization," Woese wrote. The advent of translation, he said, caused various archaic nucleic-based entities to begin changing into proteinaceous...Studying the strength of protein bonds one molecule at a time
...to ADP, it takes the same amount of force to break apart a single pair of integrin and fibrinogen molecules. It takes about 80-100 picoNewtons to separate the two molecules. By comparison, a picoNewton is about the weight of a single red blood cell and there are 500 million red cells in a drop of blood. "Y...Study suggests infants 'tune in' to familiar face groups
...olds would have been able to tell the monkey faces apart as easily as they distinguished human faces." None of this means that the ability to distinguish faces of a different species can't be learned, said Nelson. People who regularly see or work with chimpanzees, monkeys or other species learn to tell the...Baby brains learn to 'tune in' faces, Science authors say
... three months and adults have an easy time telling apart fellow humans, but telling apart one monkey from another proved nearly impossible. There are these really remarkable changes in the f...Can we enlist substitute genes to fight muscular dystrophy
...ck absorber to keep the cell membrane from tearing apart during muscle contraction. Since it is so similar to dystrophin, utrophin can also function as this molecular shock absorber, although not as well. The idea that utrophin has a protective effect against DMD has been gaining favor as researchers look...From nanotechnology to raspberries, Virginia Tech inventions and creations can improve our lives
...s are extremely symmetrical and the drupelets tear apart rather than separate from each other. Josephine seems resistant to both late rust and leaf hoppers. In keeping with tradition, established for other new varieties in recent years, of naming the most successful after important women in the researchers...Salamanders change spots: Was it environmental stress?
...s from two breeding areas that are about six miles apart and within the same watershed area in Ithaca: Bull Pasture Pond, on Cornell's Robert Trent Jones golf course, and Ringwood Pond, part of a nature reserve protected and managed by Cornell. Zamudio and Wright also examined salamanders in the Cornell M...Study suggests mechanism for heart defect that kills young athletes
...T2. While the animal is a superb model for teasing apart the function of different genes in the developing embryo, it cannot serve as a perfect model for the human genetic disease, Sehnert points out. The zebrafish can continue to develop for up to one week even if it lacks the genes needed for the heart m...Defects in 'orphan' inositol polyphosphates may be linked to manic depression, cancer
...d molecules. As a graduate student, Dr. York took apart the three dimensional structure of inositol polyphosphate 1-phosphatase, an enzyme that many scientists suspected was the target of lithium. At the center of the enzyme he found and was able to characterize a unique structure he then used as a guide ...New evidence for organic compounds in deep space
... are found. In deep space the molecules are so far apart that they no longer collide with each other. Collisions dramatically influence the spectrum. It is difficult to create a collision-free situation in the laboratory. Furthermore, the substance is so rarefied that a spectrum can scarcely be measured. H...Extensive research survey confirms life on Earth now being affected by global warming
... in Antarctica surprised everyone because it broke apart so suddenly instead of melting gradually. If those kind of break points exist elsewhere in ecology, we are on very thin ice in trying to predict the future of living things on the basis of the past history of the climate system," Post says. "The c...Discovery Channel special watches OSU chimps learn to read
... that, ostensibly, may set us apart from other animals. It hasn't been clear, however, if this talent might possibly be established in chimps to teach them simple reading skills. While Boysen's work with n...Scientists reveal secrets of infectious childhood heart disease
...t two rheumatic fever outbreaks occurring 12 years apart in the area around Salt Lake City, Utah, were caused by virtually identical GAS strains. "We have made enormous strides in understanding the biology of infectious diseases, yet much remains to be learned about relatively common bacteria like group ...Researchers discover new mechanism that targets and destroys abnormal RNA
...ollection of enzymes called exonucleases that snip apart RNA molecules. In their experiments, van Hoof, Parker and their colleagues set out to see if the exosome was involved in nonstop mRNA decay. It was known that the exosome was involved in a variety of RNA degradation processes in the cell, probably co...Stanford scientist seeks participants in NASA hypergravity study
...ll be stopped when the lights are about 40 degrees apart - the point at which peripheral vision begins to dim - or when the Doppler sensor indicates that the passenger has undergone a significant reduction in blood flow to his eyes. People tend to lose peripheral vision between 3 and 5 G, so the pretest sh...