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Tag: "detecting" at biology news

New imaging technology shown to detect pancreatic inflammation in type 1 diabetes

...lown diabetes. Today, the only accurate method for detecting the progression or regression of insulitis is a biopsy of the pancreas, which is almost never performed because it is an invasive and potentially risky procedure. "The most exciting aspect of this study is that it demonstrates that we can, at least...

Researchers identify genes associated with lung transplant rejection

...from 22 lung transplant patients, with the goal of detecting genes and gene products associated with inflammation and formation of scar tissue in breathing passages. Using a customized version of a conventional laboratory technique, they found that they were able to look at hundreds of gene products simultaneo...

Secret sex life of killer fungus?

...hers also showed that some key genes involved with detecting mating partners were active in the fungus. Taken as a whole, the study's results indicate that the fungus has a recent evolutionary history of sexual activity and might still be having sex, if thus far unseen by human eyes. These results are importa...

'Underground' tunnels discovered as means for communication between immune system cells

...nating to see this interplay inside living tissue, detecting the tiny tubules in such a complex environment may be nearly impossible with current technology. ...

Huntington's cure in flies lays groundwork for broader treatment approaches

...issue," says Yin. "And we are not yet sensitive to detecting the defects in those other tissues." Rather than focusing treatment strategies on single genetic pathways, then, Yin believes a promising alternative might be to simultaneously target a cocktail of gene-induced activities - all of which are set in m...

Carnegie Mellon cyLab researchers work to develop new red tide monitoring

... Administration (NOAA) to develop new software for detecting and tracking toxic algae plaguing North American waters. "We are developing software that will monitor dangerous algae and various biochemical anomalies for public health," said Cai, who noted other applications for this software might range from st...

Human brain is still evolving

...of the journal Science. Their analyses focused on detecting sequence changes in two genes - Microcephalin and "abnormal spindle-like microcephaly associated" (ASPM) - across different human populations. In humans, mutations in either of these genes can render the gene nonfunctional and cause microcephaly - a ...

Scientists closer to new cancer detection method

...help for early diagnosis of cancer, as well as for detecting residual cancer in patients after treatment." It works by capitalizing on fluorescent molecules engineered into tiny strands of DNA or RNA. Known as aptamers, the strands act as molecular beacons, corresponding and readily binding to a sought-after ...

Restaurant seafood prices since 1850s help plot marine harvests through history

...ds from fossils to fish taxes give a head start to detecting and managing future trends. The "Oceans Past Conference," organized by The History of Marine Animal Populations (HMAP) project component of the Census of Marine Life, will probe how the diversity, distribution and abundance of marine life in the wor...

Plant wounds trigger bacteria

...acterial protein called VirA acts like an antenna, detecting phenols in a plant wound; the phenols, in turn, signal VirA to add a phosphate (PO4) group to a related protein, VirG, converting it into an active form. The new study shows that the activated form of VirG causes the tumor-inducing plasmid to repli...

Logging doubles threat to the Amazon, rivaling clear-cutting, study suggests

...ation across large areas have only been capable of detecting clear-cut swaths of land, where all the trees are removed to clear space for farming or grazing. A new satellite imaging method, developed by Gregory Asner of the Carnegie Institution of Washington and colleagues, detects deforestation on a finer s...

War on terror meets war on cancer

... biological warfare agents may have some new uses: detecting rapidly growing cancers and studying obesity and eating disorders. The method, known as "stable isotope ratio mass spectrometry," can determine where a substance was produced by "weighing" various forms or isotopes of an element in the substance ?s...

Nanoparticles, nanoshells, nanotubes: How tiny specks may provide powerful tools against cancer

... nanotube, combined with monoclonal antibodies, is detecting cancer cells, offering a potential cost-effective ...the sensitivity of the antibody-nanotube system in detecting cancer cells in the blood and in detecting specific types of cancer cells shed in the blood from tum...

New study examines how sense of smell affects mating and aggression in mice

... by scientists at UCSF sheds light on how the odor detecting system in mice sends signals that affect their social behavior. "Understanding how mice process cues from the olfactory system--which regulates the sense of smell--should provide insight into the fundamental principles that mammalian brains use to ...

Neurons generated in the adult brain learn to respond to novel stimuli

... findings suggest that the new cells specialize in detecting previously unencountered odors and in subsequently responding to those smells. "These contrasting responses suggest that adult-born olfactory neurons have a unique role in the brain, becoming linked to new smells while the older neurons essentially...

PET imaging reveals the immune system at work

...linical settings it produces images of the body by detecting radiation emitted from radioactive substances, such as fluorodeoxyglucose, injected into the body. In the work reported by Witte's group, PET was used to follow immune cells whose DNA included "reporter genes," genes engineered to help concentrate ch...

Jefferson biologist coaxing human embryonic stem cells to make dopamine with simpler, faster method

...linical settings it produces images of the body by detecting radiation emitted from radioactive substances, such as fluorodeoxyglucose, injected into the body. In the work reported by Witte's group, PET was used to follow immune cells whose DNA included "reporter genes," genes engineered to help concentrate ch...

Health of coral reefs detected from orbit

...or boat-based observation is the current method of detecting bleaching, but many reefs are either inaccessible ...ng of live coral. MERIS should remain sensitive to detecting from 7-8% bleached coral even under ten metres of water. "MERIS Full Resolution covers the world ev...

Researchers make long DNA 'wires' for future medical and electronic devices

...t application ?building the wires into sensors for detecting disease biomarkers. In the meantime, they are collaborating with researchers in the Department of Electrical and Computer Engineering at Ohio State to measure the electrical properties of the DNA wires. They are also using this technique to produce D...

Gene expression profile helps predict chemotherapy response in ovarian cancer patients

...ly the most sensitive investigational approach for detecting residual disease in patients with advanced ovarian cancer who have achieved a complete clinical remission following chemotherapy, explains Cannistra.) The expression of 93 genes, collectively referred to as the Chemotherapy Response Profile (CRP), w...

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