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Tag: "grown" at biology news

Study finds surfing safer than soccer

... hard bottom." The sport of surfing has rapidly grown in popularity since the 1960's, but little is known about surfing injuries ?especially the relative frequency, mechanisms and risk factors. Nathanson and his research team collected injury data from 32 surfing contests worldwide, both professional an...

Soft-cell approach cuts animal tests

...ants and measures cytotoxic effects. The cells are grown on a porous polyester membrane inside a small diffusion chamber and then exposed to selected toxic air pollutants. After as little as one hour's exposure, they can study cell growth and metabolism, and a range of routine toxicological endpoints. Im...

Stem cells act through multiple mechanisms to benefit mice with neurodegenerative disease

...by invoking multiple mechanisms. Such cells can be grown in a manner compatible with clinical use (i.e., wi... all. Finally, the human embryonic stem cells were grown without mouse feeder layers and in a "defined" culture medium that is compatible with clinical use a...

Scientists discover new, readily available source of stem cells

...n to being easily obtainable, the AFS cells can be grown in large quantities because they typically double every 36 hours. They also do not require guidance from other cells (termed "feeders") and they do not produce tumors, which can occur with certain other types of stem cells. The scientists noted that ...

UBC researchers reveal dwarf aquatic plants' hidden ancestry

...ars ago, during the age of the dinosaurs. Fully grown individuals in the Hydatellaceae family can be as small as 1-2 centimetres in height, and have dozens of minute flowers clustered into each compact flower head. Native to Australia, New Zealand and India, they thrive in seasonal freshwater pools ...

Mummy's amazing American maize

...nd at other sites in northwest Argentina with that grown in the same region today. Surprisingly, they found both ancient and modern samples of the crop were genetically almost identical indicating that modern European influence has not been as great as previously thought. "The entire culture of South...

Stem cell transplants explored at Stanford as a possible treatment for hearing loss

...s the population has aged and noise pollution has grown more severe, health experts now estimate that one in three adults over the age of 65 has developed a handicapping hearing loss. Coming up with the answers is a slow process, Heller said. "This research takes time and money, but we remain hopefu...

Lab research may one day lead to cancer treatment using patient's own immune cells

...py. In future use with humans, the cells would be grown in the cell processing facility located in the Iris S. and Bert L. Wolstein Research Building, which opened in 2003. The activated T cells would be reinfused into the bloodstream of the same patient to train their immune system to fight the cancer. ...

Knocking out survival protein could aid leukemia treatment

...ncer cells from 17 CLL patients and ALL cell lines grown in the laboratory. The investigators placed molecules called small interfering RNA (siRNA) inside the cells and found that the tiny molecules greatly reduced the amount of the survival protein, causing many of the cells to die. The effect was the...

Statin plus cancer drug deliver combo punch to brain cancer cells

...opamine killed 63 percent of medulloblastoma cells grown in the laboratory. By contrast, using either agent alone wiped out fewer than 20 percent of cells. The Hopkins researchers published their findings in the January issue of the American Journal of Pathology. The researchers caution that the cyclop...

Biodiesel won't drive down global warming

... results show that biodiesel derived from rapeseed grown on dedicated farmland emits nearly the same amount of greenhouse gas emissions (defined as CO2 equivalents) per km driven as does conventional diesel. However, if the land used to grow rapeseed was instead used to grow trees, petroleum diesel wou...

Conceptualizing a cyborg

...n Smith's lab. Two adjacent plates of neurons are grown in a bioreactor. Axons sprout out to connect the neuron populations on each plate. The plates are then slowly pulled apart over a series of days, aided by a precise computer-controlled motor system, until they reached a desired length. For the ...

Whitefly spreads emerging plant viruses

...spanning food and fiber crops, and certain nursery grown ornamentals, with the ability to infest more than 500 plant species," she said. This whitefly and the plant viruses it transmits are no longer restricted to their native habitats or contained by natural geographic boundaries. "The increased import...

Scientists map air pollution using corn grown in US fields

...i and Alaska. They chose corn because it is widely grown and, as an annual plant, all of its carbon is derived from a single growing season. The scientists avoided pollution point sources such as highways and power plants to allow for mapping of regional patterns across different states. Back in the labora...

Organic is healthier: Kiwis prove that green is good

... of California, Davis have proven that organically grown kiwifruit contain more health-promoting factors than those grown under conventional conditions. The research is reported in the SCI’s magazine Chemistry & Indust...

Ultrathin films deliver DNA as possible gene therapy tool

...gues have also demonstrated gene delivery to cells grown in a dish. In preliminary experiments conducted in collaboration with Matthew Wolff, Timothy Hacker, and Jose Torrealba in the UW School of Medicine and Public Health, Lynn has shown that DNA film-coated stents can successfully deliver a gene encod...

Engineering the heart piece by piece

...lina. It allows up to 11 specimens of tissue to be grown in the same conditions at the same time, while allowing each specimen to be “stretched?using a specially made device that can both apply forces and measure the forces generated when the tissue begins contracting and beating on its own. In the new pap...

Plants do not emit methane

...n and execution of a novel experiment. Plants were grown in a facility containing atmospheric carbon dioxid...on molecules in the air. Six plant species were grown in a 13C-carbon dioxide atmosphere, saturating the plants with heavy carbon. 13C-Methane emission wa...

With cellulosic ethanol, there is no food vs. fuel debate according to MSU scientist

...o-called energy crops ?grasses and woody materials grown for their energy content ?also will increase drama... Dale said that many of these energy crops will be grown on land that isn't prime agricultural acreage. In other words, they'll be grown on marginal land tha...

Fruit fly gene research may shed light on human disease processes

...ndertaken in humans. These simple organisms can be grown cheaply in test tubes, fed on yeast, corn meal and molasses, yet their embryos, which can be seen with the naked eye, undergo many of the same developmental processes as larger creatures. Thus, they can serve as models, allowing us to observe details...

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