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Tag: "thousands" at biology news

New tool reveals secrets of migrating cells

... or immature T cells were highly mobile, traveling thousands of microns in an hour as they explore the thymus. The new experiments, conducted primarily by Witt, suggest that this exploration probably is a search for a signal that will decide the cell's fate. In their experiments on one lobe of the mouse thymu...

Using computers and DNA to count bacteria

... reconnect. As often happens at Los Alamos, where thousands of scientists from every imaginable discipline are gathered, the researchers form a multidisciplinary team, with Gans (biophysicist), Wolinsky (physicist) and Dunbar (microbiologist) using their varied backgrounds to solve these types of knotty quest...

Comparison of Cocaine, Methamphetamine ‘Highs?Finds Differences

... reconnect. As often happens at Los Alamos, where thousands of scientists from every imaginable discipline are gathered, the researchers form a multidisciplinary team, with Gans (biophysicist), Wolinsky (physicist) and Dunbar (microbiologist) using their varied backgrounds to solve these types of knotty quest...

Could better mangrove habitats have spared lives in the 2004 tsunami?

...nefit, has been responsible for the destruction of thousands of hectares of mangrove forest (e.g., in East Africa, on the Indian subcontinent, and in Banda Aceh, Indonesia), resulting in the loss of the natural, protective "dyke" function of mangroves in addition to the loss of other services that mangroves pr...

Stem Cells to Solve the Blood Shortage Problem?

...nefit, has been responsible for the destruction of thousands of hectares of mangrove forest (e.g., in East Africa, on the Indian subcontinent, and in Banda Aceh, Indonesia), resulting in the loss of the natural, protective "dyke" function of mangroves in addition to the loss of other services that mangroves pr...

Identification of specific genes predicts which patients will respond to Hepatitis C treatment

...ntists to compare levels of expression for tens of thousands of genes on a glass slide ?these "gene chips" are the size of a postage stamp. The technology is able to quickly scan the expression of those genes and differentiate between genes which are "turned on" or "turned off". Comparing "genetic fingerprints...

OHSU research shows vitamin C counteracts some negative impacts of smoking on unborn babies

...smoking in unborn babies. The research may benefit thousands of babies born to mothers who continue to smoke throughout pregnancy despite physician warnings. The research is published in the current edition of the American Journal of Respiratory and Critical Care Medicine. "The findings of this research are h...

Drawing with DNA: 'Bioart' illuminates genomics

On any given day, tens of thousands of biologists around the globe run DNA sequences of unknown function through a lightning-fast online algorithm called BLAST ?typically submitting 200 to 400 base pairs, or "letters" of genetic code, to be matched against the billions of letters for k...

Divergent life history shapes gene expression in brains of salmon

...al genomics technologies to simultaneously monitor thousands of genes in individual tissues. "Research like this was very difficult in the past because we lacked adequate tools to measure gene expression," Aubin-Horth says. "As a result almost nothing is known about the molecular basis of developmental plasti...

Woods Hole Research Center plans controlled burn in Amazon rainforest

...on landscape. Every year, low intensity fires burn thousands of square miles of Amazon forest. To study the eff... measurements prior to the burning ?inventories of thousands of trees to catalogue their species, size, and number, surveys of seedlings, measurements of fuel on...

NIH creates nationwide network of molecular libraries screening centers

...ally enable researchers to explore the hundreds of thousands of proteins believed to be encoded by the approximately 25,000 genes in the human genome. To date, only a few hundred human proteins have been studied in detail using small molecule probes. Certain small organic chemical compounds, also referred to ...

New lead reported in tumor angiogenesis

...hat they had generated a few years earlier showing thousands of genes that HGF activates in head and neck tumor cells. The gene that was among the most expressed is called jagged1, which is known to bind to a specific protein on the surface of endothelial cells. "I thought, 'Oh, this makes sense,'" said Wang. ...

Public collections of DNA and RNA sequence reach 100 gigabases

...ults of experiments that measure the activities of thousands of genes, or computational models of entire processes, it is important to celebrate the achievements of the three databases that pioneered the open exchange of biological information." In the late 1970s, as researchers started to study organisms at...

MSU researchers receive $4 million grant to uncover gene functions

...lar to a simple bacterium, rather than the tens of thousands of genes required to make a whole plant. "If we completely understand the chloroplast, it should then be possible to engineer plants to be more productive harvesters of the sun's energy into biomass to decrease dependence on oil," said Robert Last, ...

Tagging pathogens with synthetic DNA 'barcodes'

A supermarket checkout computer can identify thousands of different items by scanning the tiny barcode printed on the package. New technology developed at Cornell University could make it just as easy to identify genes, pathogens, illegal drugs and other chemicals of interest by tagging them with color-c...

New Lab Research May Help Those Deafened By Immune System Attack

...normal tissues in our body and wreaking havoc. In thousands of people each year, the immune system attacks the inner ear, home to the tiny, delicate structures that allow us to hear. Without warning, in days or weeks, patients lose the ability to hear in one or both ears. Some might get part or all of their h...

Mayan stingless bee keeping: Going, going, gone?

...gle" series, would like people to take note: "For thousands of years, Mayans were expert practitioners of bee husbandry, and honey was an essential forest resource…as a sweetener, as an antibiotic and as an ingredient in the Mayan version of mead. The Mayans, like other tropical forest cultures, worked with...

Molecular miners find pain relief drugs from the sea

... has to offer. In fact, the venom is a cocktail of thousands of biologically active compounds of which only a few hundred have been identified. Associate Professor Gayler says the team, by using genes as the starting point, are able to minimize the number of cone snails required to develop new tools and thera...

Researchers predict infinite genomes

...t unique genes will continue to emerge, even after thousands of genomes are sequenced. The GBS pan-genome is expected to grow by an average of 33 new genes every time a new strain is sequenced. "We were surprised to find that we haven't cornered this species yet," says Tettelin, lead author of the PNAS paper....

Hopkins scientists uncover 'tags' that force proteins to cell surface

...that allow -- and perhaps force -- hundreds if not thousands of proteins to get to the surface of cells and sta...in you want to target with drugs, and then to test thousands of molecules to see which ones interact with the protein and have the effect you want," says the stu...

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