Findings show how toxic proteins rob Alzheimer's patients of memory
...e current study, the research team used both ADDLs obtained from human brain tissue and ADDLs synthesized in the laboratory. Experiments showed that all the ADDLs, regardless of origin, showed the same pattern of binding to synapses on specific neurons. What is striking about ADDLs, said Klein, is that they d...JCI table of contents, December 1 2004
...ells to the rescue or not? The use of stem cells obtained from bone marrow for the treatment of some skeletal or heart diseases is an attractive long-term strategy to deliver normal stem cells, capable of developing into any cell type of the body, to injured tissue in order to effect repair. A subset of bon...Brain surface stimulation alleviates Parkinson's symptoms
...e deep-brain regions of the striatum, "the results obtained here in baboons strongly suggest that this may be the case." Xavier Drouot, Satoru Oshino, Bechir Jarraya, Laurent Besret, Haruhiko Kishima, Philippe Remy, Julien Dauguet, Jean Pascal Lefaucheur, Frdric Doll, Franoise Cond, Michel Bottlaender, Marc ...Impulsive behavior may be relict of hunter-gatherer past
...umps. The jays encountered one clump at a time and obtained some food from it. Then they had to decide whether to wait for a bit more from the same clump or leave and search for another clump. Not surprisingly, the birds still acted impulsively, preferring items they could get quickly. They considered only th...Chicken genomic sequence yields insight into vertebrate evolution
...en says. Similar results were obtained for another imprinted gene cluster, the region containing the IGF2 and H19 genes, by another group of investigators led by Hiroyuki Sasaki, Ph.D., from the National Institute of Genetics in Mishima, Japan. Sasaki and colleagues found that most of th......ppets they called "phrases." Rose and colleagues obtained permits to capture sparrow nestlings, hand-feeding and raising them in the laboratory in sound-proof cages so they didn't hear each other. When the sparrows were 2 weeks old, the researchers began trying to teach them to sing by playing them segmen...Injectable gel could speed repair of torn cartilage
...al, using cartilage-producing cells (chondrocytes) obtained from the ears of pigs, under the skin of a small group of mice, which are commonly used to examine cartilage formation in a physiological environment. The material was gelled with exposure to ultraviolet light and cartilage formation was examined ove...International HapMap consortium widens data access
...No medical or personal identifying information was obtained from the 270 individuals providing the samples. However, the samples are identified by the population from which they were collected. The $130 million project, which was launched in October 2002 and is expected to be completed in September 2005, is a...Strange ocean wave patterns raise questions about beach erosion
... while they were attempting to verify measurements obtained from the camera system. Back in 2000, their video-based measurements, which they then took from towers along the coastline at Duck, compared favorably with data from the in-water sensors. Because their measurements didn't precisely match up -- they f...MIT team engineers new approaches to understanding malaria, more
...hat cells would experience in the body. The forces obtained by the MIT-led researchers are several times larger, and their technique offers considerably greater flexibility to mechanically manipulate cells than other methods. "This really gives a level of strain for the red blood cell that is similar to what ...New effects of an antihistaminic against cerebral injury
...tal models of cerebral ischemia, because they have obtained good preliminar results with alive rats. Ranitidine is already widely used as a drug for treating gastric ulcers, which will accelerate the step towards clinical trials on humans. In fact, the researchers are already designing these clinical trails w......th. Peter Becker studied biology in Heidelberg and obtained his doctorate in biochemistry. After spending thre... to Stanford University in the USA from 1997-98 he obtained his doctorate in Munich in 2000. In 2003, at just 31 years of age, he was appointed to a professorsh...Hummingbirds lose power at high altitudes
...cross a wide variety of species." McGuire obtained DNA samples from museum specimens, relying mostly upon the tropical bird collections of the Museum of Natural Science at Louisiana State University in Baton Rouge, and analyzed two nuclear and one mitochondrial gene from each species. Though only 75 ...Evidence that human brain evolution was a special event
...ltered the protein produced by the gene. They then obtained the rate of evolution for that gene by scaling the number of DNA changes to the amount of evolutionary time taken to make those changes. By this measure, brain-related genes evolved much faster in humans and macaques than in mice and rats. In additi...Protein in urine may warn of preeclampsia risk in pregnant women
...econd study in which they analyzed urine specimens obtained at 21 and 23 weeks gestation from women with two other obstetrical conditions gestational hypertension and delivery of a small-for-gestational-age (SGA) infant which share characteristics similar to preeclampsia. Their findings showed that at the sa......dministering of all the components, given that the obtained effect greatly depended on the order in which each of the substances was administered. After a number of years of investigation, researchers have discovered this pattern. Firstly, the OTZ has to be given, then the chemotherapeutic agent and, finally,...Story tips from the Department of Energy's Oak Ridge National Laboratory, January 2005
...ser-induced breakdown spectroscopy, Madhavi Martin obtained "chemical fingerprints" from a partially burned lo...tterfly's wing. The 5-nanometer resolution images, obtained with a technique called atomic force acoustic microscopy, depict the infinitesimally complex structu...Scientists discover unique microbe in California's largest lake
...own," says UO biology professor Michelle Wood. She obtained samples containing the organism while studying the... Miller estimated that the proteobacterial DNA was obtained by an ancestor of modern chlorophyll- d producing cyanobacteria between roughly 10 and 100 million ...New lensless imaging technique opens door to nanoscale world
...periment took place at BESSY in February 2004. The obtained image revealed the randomly organized "north" and "south" magnetic regions of a cobalt-platinum film to a spatial resolution of 50 nanometers (50 billionths of a meter)....Study in Royal Society journal on managing GM crops for environmental benefit
...lusive evidence that environmental benefits can be obtained from GM herbicide tolerant (GMHT) sugar beet crops. Previous work, including the government's Farm Scale Evaluation trials, suggested that GMHT sugar beet, whilst providing environmental benefits early in the season, will reduce weed seed numbers in...