Researchers determine genetic cause of Timothy syndrome
...e less clear," said Keating. Studies of the pattern of activity of the gene for the channel in humans and mice revealed that it was expressed not only in heart muscle cells, but also in adult and fetal tissues of the brain, gastrointestinal system, lungs, immune system, smooth muscle and testis. In pa...Researchers create nanotubes that change colors, form 'nanocarpet' and kill bacteria
...e processing, the tubes align into the more formal pattern of a nanocarpet. Just like any rug, a backing, also self-assembled from the same material, holds it all together. The nanocarpet measures about one micrometer in height, approximately the same height as the free-form nanotubes. "This alignment of nan...Study reveals why eyes in some paintings seem to follow viewers
...sn't change. You're looking at a flat surface. The pattern of light and dark remains the same," Todd said. "W...a surface that is most consistent with the overall pattern of judgments in each condition." However, the different viewing conditions didn't yield many differe...Genes expose secrets of sex on the side
...ed their genes to the next generation. "It is a pattern that's built up over time. The norm through human ...chondrial DNA. "Because we don't think the pattern we see was caused by an event that swept across the globe, we had to re-examine our assumptions abou...Cockroach-like robot leads new research effort
...r muscles - sum up to give that remarkably general pattern of movement. "Now we can ask questions like, 'What if you had a more compliant leg? What if you had two joints in that leg, what does that give you versus one joint?' We can start putting artificial muscles in. Of course, that will make a better...News tips from the Journal of Neuroscience
... neurons in current clamp and then used the firing pattern of each cell as a voltage command. When the sodium current was blocked, L-type channels were only able to support slow oscillations at more depolarized potentials. 2.The Who's Who Signal in Electric Fish Bruce A. Carlson and Masashi Kawasaki ...Genetic analysis rewrites salamander's evolutionary history
...in the mitochondrial DNA, biologists can infer the pattern of evolution. "What is happening now is that by focusing on mitochondrial genes and adding particular nuclear genes, we really are teasing apart issues related to our understanding of the tree of life," Wake said. Mueller obtained DNA samples from fr...Cell's gatekeeper for ammonia revealed in unprecedented detail
...d and then exposed to intense X-ray radiation. The pattern created when the X-rays are scattered off electrons in the crystal can be used to visualize the relative three dimensional position of every atom in the protein's structure. The research reveals that AmtB channels cluster in groups of three. Three sl...Wrapping a memory with an experience, capacity for recollection detected in non-human species
...hile recollection persists, precisely the opposite pattern observed in the animals without a hippocampus. This combination of results provides strong evidence that animals, contrary to Aristotle's contention, exhibit recollection as well as familiarity. Furthermore, the findings point to the hippocampus as...New research suggests link between maternal diet and childhood leukemia risk
...first attempt to capture a woman's overall dietary pattern - using a 76-food-item questionnaire - and its relationship to the development of leukemia in a child. Researchers also studied the use of vitamin supplements, but did not find a statistically significant link to childhood leukemia risk. A g...Heart gene yields insights into evolution, disease risk
...hern Italy and Papua New Guinea. They compared the pattern of variation with the random genetic variation taking place in a group of neutral genetic markers. These analyses revealed that the variation in the gene among populations could be attributed to evolutionary positive selection. Particularly interesti...Rising childhood leukaemia incidence prompts conference
...rue, but they cannot plausibly explain the overall pattern of data now at our disposal," said Professor Coleman. It is the worrying upward trend, an inability to pin down the causes and emerging concerns that cancer treatments are leaving survivors vulnerable to future serious health risks that has prompted...Single isolated mouse skin cell can generate into variety of epidermal tissues
...factors might help to keep stem cells in a holding pattern -- an environment that inhibits growth -- and that is why they have been recognized as slow cycling," says Lowry. After expanding an isolated stem cell clone several million times, the researchers grafted the cells on to the back of a mouse that had ...Streptococcus infects humans by thwarting blood clotting
... possible to tailor treatment of infections to the pattern of genetic variability in clotting genes or other pathogenicity factors," said Ginsburg....Unicellular organisms contribute more nitrogen to ocean that reported earlier
... only fixing nitrogen for 12 hours a day a common pattern for other nitrogen-fixing organisms. But some of their data indicate that unicells may actually fix nitrogen around the clock. "These measurements have important geochemical implications, so at this early stage, I would rather undersell than oversell...Evidence for sympatric speciation by host shift in the sea
... by host shift is the simplest explanation for the pattern of habitat use and current-day geographic range of the new species. The ecology of coral-dwelling gobies closely matches that of leaf-eating insects, another group of animals for which sympatric speciation by host shift has been reported, thus provid...Sweet success in targeting sugar molecules to cells in living animals
...aid. "We hope to be able to witness changes in the pattern of glycosylation in a tissue as an animal develops through the embryonic stages, as a disease develops, or as tumors become metastatic. Until now, there has not been a technique to do such imaging." Bertozzi and her colleagues are working on probes t...X marks the spot: Vector insertion is viral specific
... each studied virus preferred a unique integration pattern or site suggests that viruses home in on certain chromosomal features for inserting themselves within the genome. This work appears in the August 17 issue of PLoS Biology, a new open-access journal. "There's a picture forming of where diffe...Schizophrenia gene variant linked to risk traits
... risk. The 'A' variant is also associated with the pattern of traits linked with the disorder. This was true in patients, their healthy siblings, and normal volunteers. In the study, people with an 'A' variant have differences in measures of brain glutamate. In a postmortem study of brain tissue, the 'A' va...Infants sighs may 'reset' breathing regulation mechanism as well as help lungs develop
...tion." The researchers say that the breathing pattern in young infants, a mathematical rhythm of sorts, is controlled by a long-term memory, which is necessary for a kind of homeokinesis that leads to a breathing rate of about 40 breaths a minute. Initially, they were somewhat surprised to find that thi...