How roots control plant shoots
... repeatedly, the flow of growth-inhibiting hormone stopped and leaves grew normally. Van Norman believes th...eaves grew pretty much normally. Because fluridone stopped the growth-inhibiting chemical and allowed leaves to grow, and because fluridone inhibits carotenoid...Molecule that helps DNA replicate may make good target for cancer therapy
...the complex cannot attach to DNA, cell division is stopped cold. The proteins that bring about DNA replication have been highly conserved during evolution; that is, the proteins are virtually identical whether the organism is yeast, an invertebrate or a human. Therefore, whatever is learned from yeast--whi...Loyola begins study on blood substitute in trauma patients at the scene of injury
...od substitute. Use of the blood substitute can be stopped at anytime during the trial based on patient or family request. Under the study protocol, treatment will begin before arrival at the hospital, either at the scene of the injury, in the ambulance or in LIFESTAR® (Loyola's helicopter paramedic unit...Sea change: Skeletons of ancient corals different from today's
...ngstanding question of why the Scleratinian corals stopped making reefs during the Cretaceous: because the low magnesium/calcium ratios in the oceans at that time inhibited the growth of the aragonite mineral that they used to build their skeletons," Ries said. ...Antipsychotic drugs stop fatal viral infection in brain cells
...hey did. By understanding that the JC virus can be stopped with clozapine and comparable serotonin receptor blocking drugs, Atwood and Roth said new avenues for PML therapy are now open. The antihistamine cyproheptadine, for example, could have the same effect on the virus. "Cyproheptadine has very high affi...'Lighter than air' breathing more than doubles COPD patients' exercise endurance
...rinflation (DH) at isotime (Iso; when the patients stopped exercising during regular air breathing), as reflected by the increase in inspiratory capacity (IC) to 1.97 from 1.77 liters and a decrease in dyspnea" scoring to 6 from 8. The researchers said that "heliox induced a state of rela...Citrus shows promise for certain childhood cancer
...hat citrus compounds called limonoids targeted and stopped neuroblastoma cells in the lab. They now hope to learn the reasons for the stop-action behavior and eventually try the citrus concoction in humans. Neuroblastomas account for about 10 percent of all cancer in children, Harris said, a...Efforts to clone primates move forward
...mbryos. In the past, such cloned embryos generally stopped growing at the 8- to 16-cell stage. Even so, cellular development continues to be somewhat flawed, indicating improper nuclear reprogramming and/or other incompatibilities. Spindle abnormalities, motor deficiencies and other chromosomal anomalies wer...Research studies effects of soy baby formula on intestinal development
...infant formula and found that the cells "basically stopped proliferating." However, actions seen in cells in culture may not be seen in infants, Donovan said. In a second study, she fed one group of newborn piglets a cow's milk-based formula, while feeding other piglets formula supplemented with genistein a...Growth of common skin cancer blocked in gene-switch mice
...nd colleagues turned Gli2 off, the BCC tumor cells stopped growing and were eliminated via execution of a programmed cell death process. These results are consistent with previous work from other labs studying different Hh-associated tumors, "but we were very surprised to see that some tumor cells persisted...Pinatubo's rivers show the danger isn't over when volcanic eruption ends
... until the eruption has subsided and the world has stopped paying attention. It is then that rain-swollen rivers emanating from volcanic peaks can send massive lahars large waves of mud made up of water, ash and volcanic rock careening down the mountainsides, often burying everything in their paths, even e...'Moss in space' project shows how some plants grow without gravity
...mission reentered Earth's atmosphere. This process stopped all growth in the moss. Control studies conducted at Kennedy Space Center in Florida used hardware and procedures similar to those used aboard each flight. However, these moss cultures were either kept stationary or turned at a slow spin on a clinost...Compound from rare plant shows promise in treating breast cancer
... "By preventing RSK from working, we completely stopped the growth of breast cancer cells but did not affect the growth of normal breast cells," said Lannigan, an Assistant Professor of Microbiology at the U. Va. Cancer Center. She compares this discovery to the development of the drug Gleevec for the tre...New science sheds light on rebuilding fisheries
...s," says Conover. "The scary part is that when we stopped size-selective harvest, the biology didn't change backit was permanent." "Resource managers and decision-makers need to be aware that fishing can cause genetic changes - changes to characteristics that are vitally important to the continuity of the p......ugs designed to be used for a week or two and then stopped once an infection clears, he said. Now UF researchers have devised a patent-pending method that combines testing of various drug concentrations at the site of infection with a series of laboratory analyses and mathematical models designed to streamli...Discovery clarifies role of peptide in biological clock
...posed that knocking out VIP or the receptor for it stopped the clock," Herzog said. "We've found that the biological clock is still running, but its internal synchrony is uncoordinated. This causes irregular patterns of sleep and wake, for example." The study was published on-line in Nature Neurosc...Compound inhibits one critical pathway in breast cancer growth
...reast cancer cells in order to find which one best stopped the constant Stat3 activation. STA-21 appeared to be the best inhibitor of Stat3 activity. "This compound showed a remarkable ability to inhibit Stat3 activity, more than any of the other 99 compounds that we tested," Lin said. The researchers then u...Could microbes solve Russia's chemical weapons conundrum?
...PHT derivatives in the cultures until the bacteria stopped growing, using monoethanolamine (MEA) and ethylene...these carbon sources. By the time the bacteria had stopped growing, the concentration of the PHT derivatives had de-creased by 50-55 percent. When further MEA ...Fasting intermittently reduces cell proliferation, a marker for cancer risk, study finds
...ell division. Tests revealed that the estrus cycle stopped for mice on the lowest calorie diet. The mice fed intermittently, on the other hand, continued to cycle regularly. Results of the refeeding trials indicated that any weight lost during the calorie restriction period was regained once a normal feeding......component of the region's cropping system, growers stopped producing it because it was not profitable. The Small Grains Breeding Program work is aimed at reversing this trend. It has focused on improving and diversifying barley's end-use quality. "Traditional hulled barley cultivars that have higher starch a...