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Tag: "examined" at biology news

Association of herpesvirus with lung disorder questioned

...n at a Tokyo hospital from 1981 to 2003. They also examined samples of lung tissue from 12 patients with other forms of pulmonary hypertension. All 22 were Japanese. For a control group, the scientists studied Kaposi's sarcoma tissue samples obtained from unrelated patients. Like the authors of the earlier s...

Quantum Dots Research Leads to New Knowledge about Protein Binding in Plants

... the molecules togerminated lily pollen grains and examined them under a confocalmicroscope.This is the very first time that Quantum Dots have been utilized forlive imaging in plant systems. The study opens the door for thepotential use of Quantum Dots in live imaging of plant cells andprovides valuable under...

Neuronal 'traffic jam' marks early Alzheimer's disease

...lular proteins. Goldstein and his colleagues also examined brain sections taken at autopsy from humans with different stages of Alzheimer's disease. They detected the same kinds of swelling in those samples that they had seen in the mice. "This was a small, initial neuropathological study, but we believe tha...

Timing is everything: First step in protein building revealed

...released from the ribosome complex, theresearchers examined how fast the pieces of the ribosome come together,and how long it takes them to fall apart under various circumstances.Their results support the idea that two separate steps take place oncethe instruction's starting point is found: first a structural...

Another Look Finds Promising Proteomics Test is Not Biologically Plausible

...f these data sets. The M. D. Anderson researchers examined the quality of the data sets and concluded that this systematic protein pattern “is biologically implausible.?Baggerly explains that discriminatory peaks appear to be spread across the entire m/z spectrum in the second data set, but “changes in prote...

New species from old data

...f these data sets. The M. D. Anderson researchers examined the quality of the data sets and concluded that this systematic protein pattern “is biologically implausible.?Baggerly explains that discriminatory peaks appear to be spread across the entire m/z spectrum in the second data set, but “changes in prote...

Cracking the olfactory code in bees

...f these data sets. The M. D. Anderson researchers examined the quality of the data sets and concluded that this systematic protein pattern “is biologically implausible.?Baggerly explains that discriminatory peaks appear to be spread across the entire m/z spectrum in the second data set, but “changes in prote...

Study Demonstrates Gene Expression Microarrays are Comparable and Reproducible

...e accurately grouped together.The researchers also examined variations of individual genemeasurements to help determine causes of variability, and they foundthat laboratory practices comprised the smallest source of variation inthese studies. Measurement errors common to all labs were the next mostcommon cont...

Signaling protein builds bigger, better bones in mice

...f these data sets. The M. D. Anderson researchers examined the quality of the data sets and concluded that this systematic protein pattern “is biologically implausible.?Baggerly explains that discriminatory peaks appear to be spread across the entire m/z spectrum in the second data set, but “changes in prote...

Combination therapy boosts effectiveness of telomere-directed cancer cell death

...ndation for Cancer Researchin Tokyo and colleagues examined what happens to cancer cells whentelomerase inhibition is combined with inhibition of an enzyme calledtankyrase 1 that is involved in making telomeres accessible totelomerase. The researchers found that both tankyrase 1 activity andtelomere shortenin...

GATA: a graphic alignment tool for comparative sequence analysis

...ndation for Cancer Researchin Tokyo and colleagues examined what happens to cancer cells whentelomerase inhibition is combined with inhibition of an enzyme calledtankyrase 1 that is involved in making telomeres accessible totelomerase. The researchers found that both tankyrase 1 activity andtelomere shortenin...

Genome-wide mouse study yields link to human leukemia

...ature.com/ng/. "This is the first time anyone has examined methylation in leukemia on a genome-wide basis in a mouse, and the findings offer important implications for patient care, since we know that methylation, which alters gene function, can be reversed," says Christoph Plass, senior co-author and a memb...

NYU Study Reveals How Brain's Immune System Fights Viral Encephalitis

...y can fight viral encephalitis. Specifically, they examined how type I interferons--proteins made by the body that are released in response to stimuli, notably infection--work in neurons and to determine if nerve cells' response to interferons is similar to that of other cells. Examining the effect of the vi...

The secret lives of whales

...entific research?are legally sold as food, Palumbi examined variations in mitochondrial DNA from individual whales. He was amazed at their genetic variation ?an indicator of the past size of their population. Piecing together their ancient family trees, he has discovered that the Antarctic population of minke...

Clam embryo study shows pollutant mixture adversely affects nerve cell development

...e embryos' developing neurons.Reinisch and company examined periodically recorded images to see whateffect, if any, the chemicals had. They also measured the levels ofproteins in the normal and treated embryos to check the visual data. Read the full paper ...

Study identifies predictors of HIV drug resistance in patients beginning triple therapy

...e embryos' developing neurons.Reinisch and company examined periodically recorded images to see whateffect, if any, the chemicals had. They also measured the levels ofproteins in the normal and treated embryos to check the visual data. Read the full paper ...

Scientists decipher genome of fungus that can cause life-threatening infections

...omparedto other pathogenic fungi. Researchers also examined the geneticdeterminants of its pathogenicity by co...ce paper. "Although the two Cryptococcusstrains we examined differ significantly in virulence, we foundsurprisingly little difference in their gene content."TIG...

U-M scientists find genes that control growth of common skin cancer

...rsity of Michigan and the NationalCancer Institute examined the functions of the Hedgehog (Hh) signalingpathway in basal cell carcinoma ?the most common form of cancer ?anduncovered a subset of tumor cells that were resistant to inhibition ofthe Hedgehog pathway. The new finding has important implications for...

Scientists document complex genomic events leading to the birth of new genes

...gent from those of RanBP2, Bork and his co-workers examined the subcellular localization of one of the RGP-family isoforms. In contrast to RanBP2, which is found exclusively at the nuclear envelope, this RGP-family protein was detected in discrete cytoplasmic locations, thereby confirming its functional diver...

NC State scientist finds soft tissue in T. rex bones

...ft behind stretchy bone matrix material that, when examined microscopically, seemed to show blood vessels, osteocytes, or bone building cells, and other recognizable organic features. Since current data indicates that living birds are more closely related to dinosaurs than any other group, Schweitzer compare...

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