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Tag: "introduced" at biology news

Mitochondrial DNA mutations play significant role in prostate cancer

...ausally related to prostatecancer, the researchers introduced into a prostate cancer cell linemtDNAs harboring a known disease-causing mtDNA mutation and, as acontrol, the same mtDNA but without the disease mutation. They theninjected these modified prostate cancer cells into mice to assess theirtumor-forming a...

Muscle-targeted gene therapy reverses rare muscular dystrophy in mice

...or of the study. "By restricting the expression of introduced genes to muscle, the immune response can be preven...e complications of neutralizing antibodies against introduced enzyme, which currently present obstacles to enzyme replacement therapy and liver-targeted gene ther...

Introduced foxes transformed vegetation on Aleutian Islands from lush grasslands to tundra

... journal Science now shows that the effects of the introduced foxes rippled through entire island ecosystems, tr...n or extinction of species that are consumed by an introduced predator. This study shows how the effects of introduced species can spread throughout an ecosystem ...

Scientists discover unique microbe in California's largest lake

...itchhikers in water containingsport fish that were introduced from the ocean many years ago," Woodexplains.She says the Salton Sea may have fostered this species ofAcaryochloris' ability to live independently by mimicking theenvironment created by the original host. In the open ocean, whichitself is nutrient po...

Artifical cornea lets woman blind 20 years see

... of injuries, like damaging chemicals accidentally introduced into the eye, Afshari added. The artificial cornea is entirely manmade, but does utilize donated corneal tissue, said Afshari. Available devices include a front and back plate, which would first be attached to a donated cornea and then sewn into the...

LUCA technologies confirms real-time methane generation

... has shown that radio-labeled CO2 (carbon dioxide) introduced to these substrate samples is converted to radio-labeled methane. This demonstrates that the methane formation is the result of a biological process occurring today. Luca is actively working to characterize Geobioreactors and the microbial consortia...

BioMed Central welcomes the new National Institutes of Health public access policy

...o update their manuscript version with the changes introduced in the publication process, as many publishers specify that only the author's version of the manuscript can be submitted to archives. Those who choose to publish in any of BioMed Central's Open Access journals, which cover all areas of biology and m...

Pulsating ultrasound enhances gene therapy for tumors

...lls, effectively "cooking" them. Under a technique introduced by King C.P. Li, M.D., M.B.A., from the National Institutes of Health (NIH), short pulses of HIFU can be used to prevent exposed tissue from becoming too hot and damaged. Pulsed-HIFU instead renders tissues permeable and helps target them for taking ...

Fleshing out the genome

... for only 16 proteins, or 3 percent. Finally, they introduced a seven-category system for annotating genomic proteins, ranked according to a functional assignment's precision and confidence. Kolker said that "a big part of this was the proteomics"-- a systematic screening and identification of proteins, in thi...

Molecular models advance the fight against malaria

...eloped disease models using yeast and successfully introduced five mutations that make malaria resistant to the ...oped resistance to almost every anti-malarial drug introduced in the past 30 years. Although atovaquone is one of the most recent drugs on the market, there is si...

HIV-1 spread through six transmission lines in the UK

...f at least six established chains of transmission, introduced in the early and mid 1980s. This goes against the prevailing belief that one initial entry of HIV-1 was responsible for the spread of the epidemic. “Since 1990 there have been important changes in Britain's social attitudes and awareness of HIV-1 an...

Silence the gene, save the cell: RNA interference as promising therapy for ALS

...ence a gene, short bits of double-stranded RNA are introduced in the cell, where they bind with matching sections of messenger RNA. The cell identifies the resulting messenger RNA strand as faulty and chops it up. As a result, the genetic blueprint isn't delivered and the protein never gets made. "Gene silenci...

Brain-mapping technique aids understanding of sleep, wakefulness

... in order to study a specific neural pathway. They introduced the tracer into mice so that it was expressed only in orexin neurons, which are found in a part of the brain called the lateral hypothalamus. The researchers found that some of the upstream neurons in the anterior hypothalamus, known to be active onl...

Revolutionary nanotechnology illuminates brain cells at work

...fer, or FRET. In a new study, the nanosensors were introduced into nerve cells to measure the release of the neurotransmitter glutamate--the major brain chemical that increases nerve-cell activity in mammalian brains. It is involved in everything from learning and memory to mood and perception. Too much glutama...

Youth With HIV Take More Risks After New Meds Introduced

...years before powerful new medications for HIV were introduced in 1996, according to a new report in the American...ly active antiretroviral therapies, or HAART, were introduced in 1996. The new drugs have successfully lowered virus levels and prolonged the lives of thousands o...

Different microarray systems more alike than previously thought

... Additional studies can also include more recently introduced versions of microarray platforms. The research was funded by the National Institutes of Health Specialized Centers of Clinically Oriented Research (SCCOR), the National Institute of Diabetes and Digestive and Kidney Diseases, and by donations of tim...

Aggressive aquatic species invading Great Lakes

...earch suggests that for the round goby, a recently introduced fish species, their ability to wrest territory from native fish plays a key role in their dominance of the Great Lakes. In the study, McMaster's Sigal Balshine, an assistant professor of psychology, and her colleagues report that gobies win territor...

New tumor-suppressor gene discovered

...corporated the human gene into their DNA. "When we introduced the human mats gene into the mutant fly's body, we found it was able to perform the same function as a normal fly's mats gene," Lai says. The mats gene is thought to be present in all plants and animals, and Lai's lab identified defective mats genes...

Undesirable expatriates: Preventing the spread of invasive animals

...xtinction, preceded only by habitat loss. Not all introduced animals become invasive. When moved into a foreign.... In an effort to gain insight into how frequently introduced animals become invasive, Drs. Jeschke and Strayer analyzed bird, mammal and freshwater fish introduc...

Product improves peptide identification for proteomics research

Agilent Technologies Inc. (NYSE: A) today introduced a high-performance ion trap mass spectrometer (MS) that allows pharmaceutical and academic life-science researchers to identify 60 to 80 percent more peptides than preceding models in proteomics applications, such as protein identification and biomar...

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