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Tag: "detecting" at biology news

Ancient olfaction protein is shared by many bugs, offering new pest control target

...olfactory neurons and serves a general function in detecting odors. When the gene for Or83b is deleted, the flies can't smell. In the new study, Vosshall, in collaboration with researchers from Sentigen Biosciences, showed that the function of Or83b is preserved in different insects. Although many odorant-rec...

Scientists develop new color-coded test for protein folding

...omedical researchers a fast, affordable method for detecting antibodies and other disease-related proteins. Aci... of the solution, thus making it an ideal tool for detecting conformational changes in proteins. "While we're not ready to mass-produce this technology, we beli...

New Breast Cancer Test Could Save Lives

...w test, which is much more reliable than X-rays at detecting cancer in this age group. The test is also a much more comfortable procedure than X-rays since it does not involve compressing the breast between plates. This could encourage many more women to be tested regularly for breast cancer, which, according ...

Novel ultrafast laser detection of cancer cells also may improve understanding of stem cells

...kers for disease. This technique holds promise for detecting cancer at a very early stage and could nearly eliminate delays in diagnosis and treatment." The technique is effective because "it measures changes in the cell architecture, especially those arising from alterations in protein density, cytoskeleton ...

Robot-based system developed at Carnegie Mellon detects life in Chile's Atacama desert

...don't know of other remote methods capable both of detecting low levels of micro-organisms and visualizing high levels incorporated as biofilms or colonies," said Gregory Fisher, project imaging scientist. "Our fluorescent imager is the first such system to work in the daylight while in the shade of the rover...

Test for early detection of prostate cancer shows promise

...es of the marker, and to verify its usefulness for detecting prostate cancer in a larger sample of patients, said Getzenberg. Prostate cancer is the most common type of cancer found in American men. The American Cancer Society estimates that there will be approximately 232,090 new cases of prostate cancer in ...

Biomarkers isolated from saliva successfully predict oral and breast cancer

...nd blood sera that might have diagnostic value for detecting early cancer. In the cell, messenger RNA or mRNA carries a copy of the genetic code or DNA, housed in the cell's nucleus, to other parts of the cell for protein manufacture. The process by which genes are copied to mRNA, via an enzyme called RNA poly...

Chromosome Deletion Predicts Aggressive Neuroblastoma

...od cancer neuroblastoma. A new study suggests that detecting this genetic deletion during the initial evaluation of children with neuroblastoma may indicate to physicians that they should recommend a more aggressive regimen of chemotherapy to fight the cancer. Edward F. Attiyeh, M.D., a pediatric oncology fel...

Confocal imaging promises early detection of skin cancer

...to replace these visits with just one visit and by detecting skin cancer as early as possible, to offer patient...otes that confocal imaging has great potential for detecting skin cancers and expects significant take-up of the technology in the next five years. ...

Molecular thermometers on skin cells detect heat and camphor

...V3 proteins on the keratinocytes that are actually detecting warm temperatures. It is not known how this signal is communicated to the brain, since keratinocytes, unlike neurons, have no direct link with the central nervous system. Keratinocytes do, however, touch nerve fibers, and it may be through these cont...

Whole-body MRI Takes Less Than 20 Min To Scan A Patient's Entire Body For Cancer Spread To Bone

...ers a better sensitivity and higher specificity in detecting bone metastasis than other methods,?said Joan C. V...sults of whole-body MRI and whole-body FDG-PET for detecting cancer, researchers from the University Hospital in Freiburg, Germany, also found that whole-body MR...

Newer imaging techniques may lead to over-treatment

...alize more of the arteries in the lungs, including detecting small blood clots not previously seen, but seeing more may have little impact on the patient's outcome, a new study suggests. The study included 198 patients with suspected pulmonary embolism. About half of the patients (98) had a multidetector CT (...

Life detection instrument passes key test on road to Mars

...land, then it would have a good chance some day of detecting life on the planet Mars. In a place that hadn't s...that this instrument is a thousand times better at detecting biomarkers than any instrument put on Mars before." The instrument has been chosen to fly aboard th...

New miniaturised chip dramatically reduces time taken for DNA analysis

...ing from paternity tests and identifying people to detecting genetically modified food, identifying bacterial s...er important applications for DNA sensors include: detecting genetically modified organisms in food, either in basic ingredients or in prepared food; identifying...

Immune system's distress signal tells bacteria when to strike back

...et them know there's a problem." For Pseudomonas, detecting interferon-gamma, "is like receiving a demolition notice from your landlord," Alverdy said. "It lets them know they need to find a new home. They don't take that news any better than we would." A vulnerable host, like a condemned home, is a liabilit...

Scripps research scientists solve structure of a critical innate immune system protein

...tem because they are the molecules responsible for detecting some of the antigens produced by pathogens. For this reason, Toll-like receptors have been called the eyes of the innate immune system. Normally, when human or mouse cells encounter bacteria or viruses, they recognize proteins, lipids, or other molec...

Researchers seek to discover what really happens when a virus enters the body

...reatly extend the reach of medical research beyond detecting the anatomical presence of the disease. Employing applied engineering technologies to treatment will allow more intensive study of diseases at the cellular level. A greater understanding of the physiology of an illness will lead to more targeted trea...

Woods Hole Research Center plans controlled burn in Amazon rainforest

...to verify how reliable those measurements were for detecting active fires under a forest canopy. According to Nepstad, "One of the discoveries from our first year of burning is that forest understory fires are invisible to the coarse-resolution satellites that are used to monitor active fires around the world....

New technique rapidly detects illness-causing bacteria

...rapid, less costly and sensitive new technique for detecting group A streptococcus, the bacteria that cause sca...n Cornell's food science department, will focus on detecting the food-borne bacteria Streptococcus pyogenes (S. pyogenes ), but the technique can be applied to a...

Quantum dots provide a faster, more sensitive method for detecting respiratory viral infections

...t one million deaths annually. Current methods of detecting the virus can take from two to six days, postponin...p a quantum dot cocktail capable of simultaneously detecting the presence of at least five major respiratory viruses: influenza A and B, parainfluenza and metapn...

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