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Tag: "isolated" at biology news

H5N1 vaccine could be basis for life-saving stockpile

...ct is important since in humans the virus has been isolated from specimens taken from the cerebrospinal fluid,...the hemagglutinin (HA) protein from the H5N1 virus isolated in Hong Kong. The virus uses the HA proteins on its surface to infect cells in the respiratory tract...

New light microscope sharpens scientists' focus

...nts light in a semiconductor could be individually isolated and studied. Combining these earlier studies, Betzig later proposed that molecular-level resolution might be achieved in cells by imaging just a few molecules at a time and identifying each one's center ?but no one yet knew how to separate out a cel...

Scientists to employ Arctic ice and polar bears to protect diversity of world's crops

...ct is important since in humans the virus has been isolated from specimens taken from the cerebrospinal fluid,...the hemagglutinin (HA) protein from the H5N1 virus isolated in Hong Kong. The virus uses the HA proteins on its surface to infect cells in the respiratory tract...

WWF captures first-ever photo of wild rhino on Borneo

... in addition to the 13, scattered across Sabah but isolated from each other. "This is an encouraging sign for the future of rhinoceros conservation work in Sabah," said Mahedi Andau, Director of the Sabah Wildlife Department. "While the total number of Borneo rhinos remaining is uncertain, we do know there ...

Adult stem cell research at UB targets damaged hearts

...to determine whether and how stem cell populations isolated from aged animals may be used. "In the long-term, the translation between the MSC-based therapy in the porcine hibernating myocardium and regenerative medicine for humans with chronic coronary artery disease will lead to optimized MSC therapeutics ...

Metal homeostasis research in plants will lead to nutrient-rich food and higher yielding crops

...s expression in yeast, Guerinot and her colleagues isolated alleles of IRT1 that no longer facilitate the accumulation of Cadmium yet retain the crucial ability to transport Iron. When the engineered IRT1 alleles are expressed in plants that no longer express a wild type copy of IRT1, the engineered allele a...

Pitt phage hunter takes on tuberculosis

...age nicknamed the "Bronx Bomber," which Jacobs had isolated from his back yard, and which Hatfull has studied extensively. They found that when infected by the Bomber, the germ could no longer form its protective coatings. Furthermore, this occurred because the phage had disrupted a M. smegmatis gene called g...

Gut microbes' partnership helps body extract energy from food, store it as fat

...uld survive, such as hot springs. Scientists first isolated archaea from the human intestine in 1982, and have recently recognized M. smithii as the most common archaeon in human intestines. In addition to its prevalence, M. smithii was an intriguing target for study because of its ability to consume hydrog...

Brain's 'gambling circuitry' identified

...of these functions, meaning that they had, indeed, isolated the "gambling" function of these regions. Of the practical implications of their findings, the researchers wrote that "pathological behaviors ranging from addiction to gambling, as well as a variety of mental illnesses such as bipolar disorder and ...

Massive duplication of genes may solve Darwin's 'abominable mystery' about flowering plants

...uplicated genes. The challenge was to distinguish isolated duplications from whole-genome duplications after a period of time in which direct evidence for a genome-wide duplication may have disappeared. Any duplicated gene gives rise to two "paralogs," which are each subject to random, independent mutation....

Gardenia fruit compound starting point for diabetes therapy

...ey further found that acute addition of genipin to isolated pancreatic tissue reversed high glucose- and obesity-induced dysfunction of insulin-producing beta cells. A derivative of genipin that lacked the chemical's cross-linking activity continued to inhibit UCP2, they reported. That's a good sign for the ...

RNA found in the cellular centrosome of surf clams

...nary Studies at Rensselaer. Palazzo's laboratory isolated clam centrosomes and Mark Alliegro and Mary Anne Alliegro of LSU Health Sciences Center analyzed the centrosomes for RNA content. "Although the possibility of DNA inside the centrosome of the cell has been ruled out by others' previous work, the pr...

Race to halt global amphibian crisis boosted by rediscovery of endangered Colombian frogs

...f species found nowhere else across a multitude of isolated ecosystems. Protecting the new El Dorado Nature Reserve prevents destruction of valuable and rare biodiversity, and also ensures a clean water source for coastal towns that depend on two watersheds that have their sources at the site ...

'Smart' genetic therapy helps the body to heal itself

...ve seen the effect of the anti-sense drug in their isolated and cultured muscle cells. We are optimistic that this small scale trial will be the precursor of major clinical studies, which will lead in turn to a safe and efficient full body treatment for DMD patients. Currently no therapy is available for t...

Unique soybean lines hold promise for producing allergy-free soybeans

Researchers have isolated two Chinese soybean lines that grow without the pr...st-doctoral researcher Monica A. Schmidt. "We then isolated the gene responsible for the lesion, and we found there was a single significant change in the gene'...

Electric fish in Africa could be example of evolution in action

...to separate species because they become physically isolated from each other. Eventually, genes within each group mutate so that the groups can no longer be considered to be of the same species. Another type of speciation, which many scientists have found harder to imagine, involves animals that live in the s...

Control measures fail to stop spread of new H5N1 virus

...also conducted genetic studies of 390 H5N1 viruses isolated from poultry in the current study (30 percent of the total found in southern China) and found that 68 percent were of the FL sublineage. The emergence of FL-like viruses and their success in replacing other H5N1 variants in such a short time demon...

MRSA vaccine shows promise in mouse study

...ty to protect mice from multiple bacterial strains isolated from humans. The researchers vaccinated 50 mice. Three weeks later, they injected groups of 10 with potentially lethal doses of one of five different clinical isolates. The vaccine completely protected mice against two strains--including the vir...

Scientists use an 'ice lolly' to find polar bacteria in their own backyard

... Antarctic lakes and glaciers. Bacteria previously isolated from polar climates, and have properties which allow them to survive in extreme cold, have been isolated from soil in temperate environments. Professor Virginia Walker and her colleagues at Queen's Univer...

Epstein-Barr virus might kick-start multiple sclerosis

...but did not have the autoimmune disease. They then isolated from each patient the T cells that specifically responded to EBNA1. A series of experiments revealed a pattern among the EBNA1 T cells in MS patients that was not seen in the healthy volunteers. "We saw a dual effect--not only was there an increase...

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