Enzyme inhibitor reduces cardiac cell death in heart attack
... knownas YVAD-cmk not only blocks this biochemical cascade but also protects hearttissue, dramatically reduci...ays -- the crucial steps that activate the caspase cascade and how to blockthem to prevent cell death associated with heart attack, stroke or otherdebilitating...Scientists identify novel component of cell-fate pathway
...to thepreliminary outline of how the Wnt-signaling cascade functions. Dr. Jon Graff,assistant professor in th... Graff and colleagues identified CKI as a Wnt cascade component throughexperiments in frogs and worms. The component is a member of a family of enzymestha...Jefferson scientists propose mechanism to control the body's red blood cell and platelet production
...ad tocell death. They detail part of the intricate cascade of cellular events leadingto activation of these enzymes in the blockade of red blood cell development. Apoptosis is a fundamental biological process that is vital to celldifferentiation and normal development. In human embryos, for exampl...Another component of the blood clotting machinery unraveled
Insights in the molecular steps of the coagulation cascade / Relevance for cell-membrane interactions Researchers at the Max Planck Institute for Biochemistry in Martinsried/Munich have determined the structure of an important domain of coagulation factor Va. This opens new insights into the molecular det......l the structural basis of the switch in the signal cascade at atomic resolution, with the hopes of developing new approaches for treating multiple-resistant infections," Kern says. It's the first time the structure of such a short-lived protein has ever been pinpointed by scientists, Kern says, and herald...Possible cause and treatment for shock uncovered by UC San Diego bioengineers
...ous activators into the blood stream, initiating a cascade of events leading to multiple organ failure." To test their theory, the researchers surgically produced shock in rats. Control rats were given no treatment. But the researchers injected a broadly acting pancreatic enzyme inhibitor* into t...Food web theory suggests ecology may be governed by general rules
...od web. The most widely accepted model to date-the cascade model-successfully predicts only a few food web pr...eir individual properties more accurately than the cascade model. A computer-imaging program designed by Williams to process the data also allowed the researc...University of Colorado salmon study spawns new insight into human brain aging
...re a good model to study because the physiological cascade of aging effects proceeds much like that in humans, although salmon run an astonishingly swift course toward death following reproduction, said Norris. Both salmon and humans exhibit remarkably similar aging symptoms, including brain decay, cardiov...Alexion and Yale discover harmful complement activation in patients with acute coronary syndrome
...ficial effects of the components of the complement cascade prior to the fifth component (C5) and the greater inflammatory disease-promoting effects of the cleavage products of C5, the Company has identified C5 as a potentially effective anti-inflammatory drug target....How a hormonal henchman triggers death
... , the scientists report that ecdysone initiates a cascade of biochemical signals that controls genes that destroy salivary gland tissues when the larval fruit fly Drosophila melanogaster begins its metamorphosis into an adult. "Studying the process of programmed cell death during development is nearly im...One-two punch knocks out fly genes
...hing on the molecular scissors and setting off the cascade of clipping events that culminated in a pair of broken ends of the normal body color gene DNA. The flies' cellular machinery swiftly reacted, directing the broken-ended gene to be sewn into the fly genome and replacing the former, wrong copy of the ...Compound that switches off appetite in mice discovered by Hopkins scientists
...he brain at all. Scientists normally look for the cascade of reactions, used to synthesize molecules called fatty acids, in the body's fat or liver tissue. Yet not only is the pathway found in certain brain cells, but these cells are concentrated in areas known to control appetite. "It's unlikely that C75...Understanding how E. coli kills cells
...are destroyed by the toxins. Although this general cascade had already been known, just exactly how these toxins killed the cells remained a mystery. Now, Drs. Atsushi Suzuki and Hirofumi Doi and their colleagues in Japan discovered that the verotoxins contain a short stretch of amino acids very similar to a...Molecular structure key to allergies and asthma is identified
...t attack allergies at their source, preventing the cascade of released chemicals that leads to the itching, sneezing and congestion of allergies, the life-threatening respiratory distress of asthma and anaphylactic shock. Todays commercial drugs only treat symptoms once the allergic response is already under......ell. This ion movement, in turn, triggers a whole cascade of events that eventually leads to muscle contraction. "In the brain, neurons communicating with other neurons communicating with still other neurons is the physical basis of thoughts, emotions and behaviors. Synapses are the key structures for in...Scientists discover key ingredient in sexual reproduction
...m and an egg come together, something triggers the cascade of chemical events that eventually results in the development of an embryo. 'Since the turn of the century, people have wondered exactly how sperm-egg contact initiates development,' says biologist David Epel. The answer, he says, begins with ...Little-known substance regulates inflammatory response
...necrosis factor, or TNF. TNF not only initiates a cascade of other chemical messengers but also increases blood-vessel permeability, allowing white blood cells to pass easily out of the capillaries to reach the site of an infection. Once the immune system gains the upper hand, however, it has to scale bac...Researchers identify molecule that senses osmotic pressure in vertebrates
...hem calcium ions, to pass through, which elicits a cascade of intracellular events. In the case of sensory cells and nerve cells, this is converted into electrical signals to the central nervous system. The scientists cloned VR-OAC from rat, mouse, chicken and human gene libraries. The ion channel was detect...Instant replay: study finds potential mechanism for building long-term memory
...ift from short- to long-term memory is driven by a cascade of biochemical reactions unleashed by the original...That theory seemed flawed, said Tsien, because the cascade of reactions lasts only a few hours or couple of days, and the consolidation of long-term memory in ...