Enzyme increases number, size of heart muscle cells in mice
...elomeres cap the ends of chromosomes, like plastic tips on shoelaces. Ordinarily, after organisms are born, TERT production stops in most types of cells, and telomeres shorten in the process of aging. The mice produced in Schneiders laboratory make TERT at concentrations usually seen only in embryos. In...Science, engineering and technology news tips
...he RNA accumulated in the meristems -- the growing tips of the shoots. "This is the first study to show that long-distance transported RNA is functional," said graduate student Minsung Kim, who is lead author on the study. Because the RNA accumulated in cells of the meristem, it must carry within it an a...SAGE pronouncements on long life
...scovered tts-1, which appears to interact with the tips of chromosomes. These results provide hot new data for scientists studying longevity and showcase SAGE as a tool for studying global gene activity patterns....UCSF scientists halt tumor growth by manipulating telomerase enzyme
...into deoxyribonucleic acid (DNA) and places on the tips of telomeres, DNA-protein complexes at the ends of...vide accurately during cell division. However, the tips of telomeres drop off each time a cell divides, and when they are gone a cell stops dividing. (This ...$100,000 prize to pioneers in neural research
...d discover many key genes that control the growing tips of nerve cells known as axons, steer them to their proper targets, and direct them to make the appropriate synaptic connections. Dr. Goodman has also demonstrated that these genes and mechanisms that control brain wiring are nearly identical in all ......ley, found a protein on prostate cancer cells that tips off the immune system to the tumor's presence and brings in an armada of immune cells to destroy it. If the protein, called an antigen, is truly unique to prostate cancer cells, it could lead to diagnostics for prostate cancer and a potential vaccine...New tools for health care providers and the public to combat overweight and obesity
..., an online interactive menu planner, and consumer tips on behavior change for weight management are some ...de is just that a practical manual with tools and tips for weight loss. "This guide gives health care providers the fundamentals needed to evaluate an...Growing neurons use silencing mechanism to avoid disastrous tug-of-war
...f the red light when the green light comes on, the tips of growing nerve cells protect themselves from being led astray by switching off their sensitivity to an attractant protein when activating sensitivity to a repellent protein. This interlocking fail-safe mechanism might be a basic strategy used t...Researchers find new clues to nerve cell development
...nnae, filopodia are finger-like projections on the tips of developing nerve cells that extend out to detect environmental clues and help direct axons to their proper destinations. Until now, scientists didn't know what kind of signals filopodia sent back to the cell tip, called a growth cone, or how they ...Calcium signals found to guide nerve cell development
...nment and generate tiny bursts of calcium at their tips that send back information in a manner similar to ...out how filopodia send their signals to the motile tips of neurons, called growth cones, or how they controlled the growing nerve cells' movements. When the...Freezing human eggs - new findings point way to greater success
...p 417-422 Growing mouse ovarian follicles - future tips for freezing human tissue?A study*** by two Sydney-based researchers is the first to show that pre-antral mouse follicles isolated from frozen and thawed ovarian tissue can be grown in-vitro to the point of antral development. They can also release m...Wistar scientists add difficult-to-sequence stretches to human genome data
... sequence of the human genome to reach most of the tips of human chromosomes, called telomeres. The telomeres and adjacent regions were not fully included in the working draft sequence announced last summer because they have unique properties that make them particularly difficult to isolate and analyze. ...A bizarre new predatory dinosaur unearthed on Madagascar
...e front are longer and almost conical, with hooked tips and only tiny serrations. These features are otherwise unknown among theropod dinosaurs, which tend to have teeth of the same type front and back. Sampson stated, "When we dug up the first lower jaw bone, we weren't even sure it belonged to a din...New predatory dog-sized dinosaur unearthed on Madagascar
...e front are longer and almost conical, with hooked tips and only tiny serrations. These features are otherwise unknown among theropod dinosaurs, which tend to have teeth of the same type front and back. "When we dug up the first lower jaw bone, we weren't even sure it belonged to a dinosaur!" s...Reducing sodium leads to substantial drop in blood pressure, finds NHLBI study
...t, have a lower sodium breakfast and lunch. Other tips include downsizing ordering the kiddie meal, which will have less sodium because its a smaller portion; avoiding fried dishes since batter is salted; and ordering sandwiches with lettuce and tomato instead of mayonnaise, sauces and condiments. ...Game of life allows all mating strategies
... paternity tests by snipping a tiny piece from the tips of the lizards' toes, a humane procedure that did not disable the animals. The result of the screening, using a process called microsatellite genotyping, could have been predicted by an experienced player of the rock-paper-scissors game (although th......eam showed that the protein is present at the very tips of the nerve endings. To test the function of ..."The BNC1 protein is an ion channel located at the tips of nerves surrounding hair follicles. When the hair moves, the channels open and the flow of ions c...A molecular motor's key role in cell birth
...in cables into the bud, allowing Kar9p to pull the tips of microtubules into the bud and properly orient the yeast cells' mitotic spindles, as revealed by immunofluorescence microscopy. Yin's work is the first to successfully demonstrate the role of a molecular motor guiding the spindle during mitosis ...Foods puffed up with air can aid weight management
... density eating plan and offers menus, recipes and tips for modifying your favorite dishes.......ber 1999, p 4). These include the telomeres at the tips of chromosomes, which protect them from fraying and recombining; the central, X-shaped centromere, which orchestrates duplication during cell division; and regions of satellite DNA at the root of each of the chromosome's four arms, made up of "junk" ...