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Tag: "thousands" at biology news

Gene expression profile helps predict chemotherapy response in ovarian cancer patients

... to a glass slide containing embedded sequences of thousands of known human genes. The genes that are present in the tumor cell bind to their counterpart sequences on the slide and can then be identified through computer analysis. In this new study, the authors conducted microarray testing on samples from 60 ...

Carnegie Mellon U. transforms DNA microarrays with standard Internet communications tool

...l systems. DNA microarrays monitor the behavior of thousands of genes over time by detecting changes in the exp...exing problem for scientists who study hundreds or thousands of cells over time, according to Bar-Joseph. Large groups of living cells that start out together at...

'Dating agency' boosts hunt for disease genes

... of Manchester, adds: "The archive manages tens of thousands of samples for a dozen diseases. Now we are using the internet to sort out the logistics of distribution." Simon Pullum, the chief executive of Azura Group, a technology consultancy in Essex used by the DNA Network, says: "The software is designed t...

Needle-free immunizations

...lions of cases of hepatitis B and hepatitis C, and thousands of HIV infections. The World Health Organization has estimated that as many as one-third of immunization injections are unsafe in four of it six geographical regions. In a paper published today in Nature Reviews, "Immunization Without Needles," Mi...

Picking particles faster than one at a time

...ry have developed software that can select tens of thousands of high-quality images of biological molecules fro...llion atoms, you need a million particle images -- thousands for each orientation." These must be chosen from many millions of candidates, and each must show t...

Yale scientists decipher 'wiring pattern' of cell signaling networks

...eta Devgan used proteome microarrays to assay the thousands of different proteins in a yeast cell for targets ...," said Snyder. "We wanted to know how the tens of thousands of proteins coordinate to carry out complex processes such as growth, cell division and formation of...

Birth defects: 8 million annually worldwide

...rom the March of Dimes. Additionally, hundreds of thousands more are born with serious birth defects of post-conception origin due to maternal exposure to environmental agents, such as alcohol, rubella, and syphilis, says the March of Dimes Global Report on Birth Defects: The Hidden Toll of Dying and Disable...

Cellular scale drug delivery from the inside out

...hat makes drug delivery possible. The spheres have thousands of parallel channels running completely through them. Through capillary action, the spheres can soak up molecules of the drug to be delivered. When the channels are filled, the ends of channels are "capped" to safely seal the drug inside. Once the ca...

Ancient DNA helps UF researchers unearth potential hemophilia therapy

...fied form of the protein, but it can cost patients thousands of dollars and its effects don't last long. Scientists have been trying to find a safe way to perform gene therapy in hemophilia patients for years, but problems with the viruses typically used to transport needed genes to their target destinations h...

Simple idea to dramatically improve dengue vaccinations

...dy. A mosquito-born disease, Dengue kills tens of thousands of people per year and sickens 100 million more. K... clear the infection. After the infection is gone, thousands of these pre-programmed T-cells remain in the body, lying in wait should the disease return. In rec...

Sequencing our seas

...ted at each depth. In the process, they discovered thousands of new genes from novel and ecologically abundant microbes and found evidence of frequent gene exchange between organisms. The study also revealed variations in genetic composition at different depths--including differences among genes involved with ...

Wyoming cloud seeding experiment begins this month

...ted at each depth. In the process, they discovered thousands of new genes from novel and ecologically abundant microbes and found evidence of frequent gene exchange between organisms. The study also revealed variations in genetic composition at different depths--including differences among genes involved with ...

Intelligently designed molecular evolution

...er laboratories, requires the screening of tens of thousands to a million or more mutants. "The enzyme synthase was there ready to be evolved, and with our methodology, we were able to rapidly and efficiently evolve it down a pathway of our choice," Keasling said. "We are recapitulating evolution into intel...

Vaccine provides 100 percent protection against avian flu virus in animal study

...ted at each depth. In the process, they discovered thousands of new genes from novel and ecologically abundant microbes and found evidence of frequent gene exchange between organisms. The study also revealed variations in genetic composition at different depths--including differences among genes involved with ...

UC Berkeley researchers create a biologically-inspired artificial compound eye

...ting pinhead-sized polymer resin domes spiked with thousands of light-guiding channels, each topped with its ow...f the eye's outer layer, a structure consisting of thousands of microlenses. Using existing technology, they made a flat array of these tiny, domed lenses arrang...

New Rotavirus vaccine joins routine infant immunization schedule

...tening diarrhea and dehydration. It causes tens of thousands of hospitalizations in the U.S. each year, and throughout the world, hundreds of thousands of child deaths. The new vaccine was invented by three Philadelphia scientists: H. Fred Clark, D.V...

Powerful new tool for studying brain development

...M is a growing, encyclopedic collection of tens of thousands of images as seen through a microscope. The images are obtained at distinct time points and show where and when specific genes are expressed at each of four developmental stages. Gene expression is visible because special tags called probes bind to m...

Amazonian terra preta can transform poor soil into fertile

...oil, said that the super-fertile soil was produced thousands of years ago by indigenous populations using slash...n said, by sequestering huge amounts of carbon for thousands of years and substantially reducing methane and nitrous oxide emissions from soils. "The result is ...

GPSDB, the free Gene and Protein Synonyms DataBase

...oil, said that the super-fertile soil was produced thousands of years ago by indigenous populations using slash...n said, by sequestering huge amounts of carbon for thousands of years and substantially reducing methane and nitrous oxide emissions from soils. "The result is ...

Invasive species harms native hardwoods by killing soil fungus

...tion center in Petersham, Mass. "In North America, thousands of nonnative plants and animals have become established since European settlement and many more continue to be introduced. Some alien species cause little harm, while others can become very aggressive and radically transfigure their new habitat. "Th...

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