Meteorites supplied Earth life with phosphorus
...enosine triphosphate (ATP), the energy that powers growth and movement. And phosphorus is part of living architecture it is in the phospholipids that make up cell walls and in the bones of vertebrates."In terms of mass, phosphorus is the fifth most important biologic element, after carbon, hydrogen, oxygen...Tiny molecules have big potential as cancer drugs, Stanford researcher believes
...od vessels to the tumors as well as increase tumor growth and invasiveness. The team also tried giving a bro...tumor development both in early and late stages of growth with no apparent side effects. The National Cancer Institute has since fast-tracked the inhibitor in...JGI announces community sequencing program portfolio
... Too much phosphorous can over-stimulate microbial growth resulting in eutrophication, where oxygen in the water is depleted and fish and other organisms residing in the habitat die. Alvinella pompejana, the marine Pompeii worm, which has adapted to thrive at super-hot hydrothermal vents. Prochlorococcu......g consumer trend that has spawned an international growth industry. The speakers will address myths and misconceptions about pesticides, preservatives and other chemicals, as well as irradiation, organic farming and nutrition. The two-part symposium will take place on Monday, Aug. 23 beginning at 8:...The insect police: Why social insects punish cheating comrades
...ring - can detract from the overall efficiency and growth of the colony. To test this, Hammond and Keller estimated the extent to which workers produce their own male offspring and whether this was determined by how related the workers are to each other (e.g. some colonies are run by more than one queen); ...Anticancer drug zebularine specifically targets tumor cells
...or called zebularine--is better at inhibiting cell growth and promoting gene expression in cancer cells, not... Jones and colleagues showed that zebularine slows growth by as much as 68 percent in cancer cells, but only by 21 percent or less in normal cells. These find...Testing the fitness of biological clocks
...mutations in the clock genes that didn't stunt the growth of the microscopic plants. They then mixed the algae with disrupted clocks with algae with normally functioning clocks. When the mixture was placed in an environment with a 24-hour day/night cycle, the normal algae grew dramatically faster than those...New compound could give some types of cancer the one-two punch
...nts use a combination of drugs one to prevent the growth of new blood vessels, for example, and another to keep cancer cells from dividing and spreading," Li said. "One drug with dual activity means that the body only has to deal with a single compound, and that could eliminate a lot of complexity in terms...Improved nutrition could reduce malaria burden worldwide
...iciencies in malaria endemic regions contribute to growth faltering and compromise a child's ability to fight infection. Zinc improves growth and enhances the body's ability to respond to infection, and vitamin A plays an essential role in th...Study suggests cell-cycle triggers might be cancer drug targets
...y proteins believed essential to cell division and growth had little impact on normal tissue development of ...embryos. "D-type cyclins" are molecules that sense growth signals from the cell's environment and, when appropriate, switch on cell division and growth. But w...Tips from the journals of the American Society for Microbiology
...-specific CD8+ T-cell immunity and can control the growth of E6-expressing tumor cells," say the researchers. "Therefore, E6 vaccines, and perhaps E6 and E7 vaccines in combination, may represent an important approach to controlling HPV-associated cancers." (S. Peng, H. Ji, C. Trimble, L. He, Y. Tsai, J. Y...Muscling their way into the food chain: Zebra mussels alter fish populations in the Hudson River
... American shad and striped bass, have decreased in growth and abundance since the zebra mussel invasion. Con...t-limited areas, increased sunlight results in the growth of aquatic plants and the invertebrates associated with them, creating more fish food in vegetated s...Progress in breast cancer progression
...ne that would undergo this transition when given a growth factor, the authors showed that when NF-kB activit..., the cells no longer required the addition of the growth factor to transition, but instead would spontaneously undergo the epithelial-mesenchymal transition....JCI table of contents, 16 August, 2004
...ne that would undergo this transition when given a growth factor, the authors showed that when NF-kB activit..., the cells no longer required the addition of the growth factor to transition, but instead would spontaneously undergo the epithelial-mesenchymal transition....X marks the spot: Vector insertion is viral specific
... entry. "If there's a key interaction required for growth of a virus, then that would be a target to inhibit," says Bushman. HIV needs three enzymes - reverse transcriptase, protease, and integrase - to complete a full replication cycle. AZT and protease inhibitors stop activity of the first two, respective...Nerve cells 'guided' to repair spinal damage: Technique
... gel channels and peptides to stimulate nerve cell growth and bridge the gap between the two ends. "We need cells to grow in a specific direction to minimize that distance, thereby reducing the time for regeneration," says Shoichet, who holds the Canada Research Chair in Tissue Engineering. "A longitudinal ...Stem cell research targets cerebral palsy
...tural chemicals, called chemokines. Chemokines are growth factors that attract white blood cells and are quickly summoned to the site of an injury, such as a brain injury that occurs in cerebral palsy. More recently, researchers have found that chemokines also seem to attract stem cells to an injury site. H...Marijuana ingredient inhibits VEGF pathway required for brain tumor blood vessels
... needed for the production of vascular endothelial growth factor (VEGF). According to a new study published ...n previous studies, have been shown to inhibit the growth of blood vessels, or angiogenesis, in laboratory mice. However, little was known about the specific ...T. rex owes its giant size to the ultimate teenage growth spurt
...irst time, scientists have determined the lifelong growth pattern for the Tyrannosaurus rex. T. rex reached its massive adult size due to an extraordinary growth spurt that stretched from about 14 to 18 years of age. Furthermore, the surge was followed by about ......r native hosts. For example, if the gene for human growth hormone is inserted into the genetic code of yeast...expressed in the yeast is called recombinant human growth hormone. Zhang's research starts with introducing the genes of interest into tobacco plants and the...