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Tag: "samples" at biology news

Association of herpesvirus with lung disorder questioned

...that reported the presence of the virus in similar samples of lung tissue from a similar number of patients. ... of subjects. They looked for evidence of HHV-8 in samples of lung tissue from 10 patients diagnosed with primary pulmonary hypertension at a Tokyo hospital fr...

Deficient DNA Repair Capacity Associated With Increased Risk Of Breast Cancer

...olleagues analyzed cell lines generated from blood samples taken from pairs of sisters in which one sister had been diagnosed with breast cancer and the other had not. They found that DNA repair capacity was lower in breast cancer patients than in the control subjects. Deficient DNA repair capacity was asso...

Yellowstone microbes fueled by hydrogen, according to U. of Colorado study

...t grows in a culture dish, we looked at the RNA of samples directlyfrom the field," Spear said."We've never b...about as much material as a pencil eraser.Sediment samples were scooped into special sample vials and immediatelyfrozen in liquid nitrogen canisters to preserv...

It's not all genetic: Common epigenetic problem doubles cancer risk in mice

... extra IGF2." The team's analysis of colon tissue samples from a dozen or so Johns Hopkins patients with sus...similar, the researchers report. A larger study of samples from patients with and without suspected colon cancer is underway, Feinberg notes. In the mice -- a...

Novel technology detects human DNA mutations

...shold and can be used with human DNA obtained from samples as small as a drop of blood. Importantly, the tech...s technology were demonstrated withunamplified DNA samples representing all possible forms of three genesimplicated in hypercoagulation disorders.Related : Na...

Growth in the sea comes down to a struggle for iron

... prohibit scientists from boarding or even sharing samples or equipment with a vessel from another country. The American team went to work lowering equipment over the side to collect water samples. They analyzed water chemistry, nutrients, and microorganism diversity. Working to assist their Japanese collea...

Neuronal 'traffic jam' marks early Alzheimer's disease

...e models of Alzheimer's disease and in human brain samples from people with the disease, researchers observed... 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 t...

Anti-bacterial additive widespread in U.S. waterways

...tamination is based inpart on an analysis of water samples collected from rivers in andaround Baltimore, Md., as well as from local water filtration andwastewater treatment plants. From the samples, Dr. Halden and hissummer research intern, Daniel H. Paull, now a graduate student in theChemistry department a...

Study Demonstrates Gene Expression Microarrays are Comparable and Reproducible

..., the expression profiles of portions ofindividual samples were highly comparable, and the experimentalcorrel...sues, five cancer celllines, and five purified RNA samples were prepared, blinded, andrandomized for analysis in four laboratories: University of MichiganMedic...

Study Links Ebola Outbreaks To Animal Carcasses

...carcasses were tested for the Ebola virus, with 14 samples being found positive. In 11 cases, instances of human infection were directly linked to gorilla, chimpanzee and duiker carcasses. To prevent future outbreaks from becoming health crises, health officials and wildlife researchers must continue to wor...

Bacteria collection sheds light on urinary tract infections

...i obtained from an animal source. They used E.coli samples collected over 40 years from the center to match u...with bacteria found in animals. They tested E.coli samples from dogs, cows, sheep, water and turkeys. The researchers then compared the samples genetically to ...

Improved Outcomes Releases GeneLinker(TM) Gold and Platinum Version 4.6

...enting over-training and reducing theeffect of bad samples by requiring consensus among multiple learners tomake predictions." said Mark Chatterley, VP Bioinformatics at IOS."Despite our new focus, we are still enhancing our products for geneexpression data analysis. We've added additional data import script...

The secret lives of whales

...iddle of the last series of Ice Ages. Using whale samples from the Japanese meat market, where Antarctic min...ting a map of global ocean pollution based on skin samples from whales. “Our goal is to determine how badly contaminated oceanic fish are with persistent orga...

Dinosaur DNA? New Patent Covers Degraded DNA recovery

...of a crime scene or the environment has caused DNA samples to become degraded. "We hope this gives criminal i... that began in 1989 when DNA was recovered from 12 samples of ancient organic remains, ranging in age from 4 to 13,000 years. The remains included several Egyp...

Mitochondrial DNA mutations play significant role in prostate cancer

...cerfree. Twelve percent of all the prostate cancer samples had mutationsin the COI gene, while less than 2 percent of the samples from patientsfound to be cancer free harbored mutations in this gene. In a controlsample of 1,019 in...

Researchers reveal the infectious impact of salmon farms on wild salmon

...try, but past studies haven't looked at such large samples or the spatial aspect," says fisheries biologist Ransom Myers of the University of Dalhousie. "This study goes far beyond a theoretical model. They tested the model in the real world, using an enormous data set, and saw the same patterns. It is a ver...

ASU researchers finds novel chemistry at work to provide parrot's vibrant red colors

...feathers. McGraw and Nogare collected and analyzed samples from 44 parrot species that have red feathers. Overall, there are some 350 species of parrots, 80 percent of which have red in their plumage. They found a suite of five molecules, called polyenal lipochromes (or psittacofulvins), that color parrot p...

Genetically modified natural killer immune cells attack, kill leukemia cells

...rge populations of NK cells, the team started with samples of blood containing a variety of different immune system cells. They placed this sample into a dish containing a type of human leukemia cell called K562. Campana's team genetically modified the K562 cells so they carried on their surfaces many copies...

Transport System Smuggles Medicines Into Brain

...feathers. McGraw and Nogare collected and analyzed samples from 44 parrot species that have red feathers. Overall, there are some 350 species of parrots, 80 percent of which have red in their plumage. They found a suite of five molecules, called polyenal lipochromes (or psittacofulvins), that color parrot p...

Open microfluidic and nanofluidic systems

... could provide fast and detailed analysis of blood samples in the physician's office without the need to wait several days before the sample has been returned from specialized laboratories. Other applications include customized chips for space travel in order to monitor microbes inside spacecraft or to detec...

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