Tag: "sensitive" at biology news

Researchers discover way to make cells in the eye sensitive to light

Researchers have discovered a way to makelight sensitive cells in the eye by switching on a single gene.Acc...oof of principle that melanopsincan make non-light sensitive cells receptive to light, and although nota cure, could have applications in treating some forms of ...

Novel technology detects human DNA mutations

...tary applications -- such as bio-barcode for ultra sensitive detection of proteins -- demonstrate the broad app...s any mutations in the DNA and the probe, a highly sensitive gold nanoparticle, creates a strong signal accurately indicating the presence of a specific target S...

Inflammatory molecules released by pollen trigger allergies

...s whether cells from allergy-prone people are more sensitive to the effects of the pollen-derived compound than those from non-allergic individuals. A better understanding of these molecules and how they work may eventually lead to new approaches to treating allergies. ...

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

...ll culture, the researchers found that neurons are sensitive to the protective effect of interferons, inducing pathways to fight the virus' spread. However, their findings showed that interferons fight the virus at different stages of the virus' life cycle. First, they inhibit viral RNA and protein synthesis. ...

Color-blind method opens new doors in DNA sequencing

...ery clean." Metzker said, "We have built a highly sensitive instrument for the measuring of fluorescence, because PME gives brighter signals and collects more of that signal by eliminating the need for a prism to separate the light into colors." Metzker is also seeking to develop a chip-based imager than cou...

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

...escan produce significant scarring in cosmetically sensitive locations,such as the face.The Hedgehog signaling pathway plays a key role in normal development,and its dysfunction has been implicated in a number of different humandiseases and neoplasms, including BCCs in skin and cancers arising inbrain, lung, p...

Alcohol's effects on gene expression in the central nervous system

...ies with humans indicate that this brain region is sensitive to the effects of heavy alcohol drinking and repeated withdrawals. The microarray technique provides insight into cellular changes that occur over time with chronic alcohol drinking and repeated withdrawals." Collectively speaking, added McBride, fi...

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

...ause of this close match, the laser is exquisitely sensitive to subtle changes in the mitochondria size and effects of clustering. To date, the research team has found that 90 to 95 percent of light scatter generated is from optical properties of mitochondria. Working with UCSD According to Bob Naviaux, prof...

Devising Nano Vision for an Optical Microscope

...f details. “The scattering patterns are extremely sensitive to small changes in the shape and size of the scattering feature,?explains Rick Silver, a physicist in NIST’s Precision Engineering Division. ...

Study of genomic DNA leads to new advances in cancer diagnostics

...istance to DNA digestion. Non-malignant cells were sensitive to DNA digestion by Alu I while highly malignant c... cell, influenced whether the cell's chromatin was sensitive or resistant to Alu I. The group also implicated the cell's cytoskeleton, the internal scaffolding t...

Bird Brains Show How Trial and Error May Contribute to Learning

...e usually too subtle for human ears, Kao said, but sensitive recording equipment can detect them. The systematic trials were possible with the aid of a computer program that could track the bird twitters and trigger stimulations to LMAN at precise moments to elicit measurable effects on a predetermined syllabl...

Affymetrix and Stratagene Announce Strategic Software Alliance

...software will provide highly accurate, precise and sensitive methods needed to support expression research," said Jason Goncalves, General Manager of Stratagene's software solutions business. "We've placed these capabilities in a software tool designed for life scientists, and the result will be better quality...

Applied Biosystems Introduces Advanced Gene Expression Service Provider Program

...for gene expression analysis, including the highly sensitive Expression Array System for whole genome analysis ...ied Biosystems Expression Array System is a highly sensitive gene expression detection system. The system detects more genes and achieves more than a 10-fold inc...

Harnessing microbes, one by one, to build a better nanoworld

...for gene expression analysis, including the highly sensitive Expression Array System for whole genome analysis ...ied Biosystems Expression Array System is a highly sensitive gene expression detection system. The system detects more genes and achieves more than a 10-fold inc...

Children's taste sensitivity and food choices influenced by taste gene

...s with two bitter-sensitive alleles (PP) were more sensitive to bitter taste than those with just one (AP). Ge...als with the mixed AP genotype, children were more sensitive to bitter than adults, with 64% of children but only 43% of adults able to detect bitterness in the ...

Researchers develop rapid diagnostic tool for pathogen identification

...lumbia Genome Center have designed and developed a sensitive new diagnostic technology platform, called “Mass T...biodefense.?/p> To address the need for highly sensitive diagnostics, researchers built on an established method known as polymerase chain reaction that allo...

NYU study reveals how brain's immune system fights viral encephalitis

...ll culture, the researchers found that neurons are sensitive to the protective effect of interferons, inducing pathways to fight the virus' spread. However, their findings showed that interferons fight the virus at different stages of the virus' life cycle. First, they inhibit viral RNA and protein synthesis. ...

Norovirus, AIDS vaccine and Hepatitis Virus

...monstrated here that replication of HBV and HCV is sensitive to the antiviral activities of interferon lambda," say the researchers. "These results suggest the possibility that interferon lambda may be therapeutically useful in the treatment of chronic HBV or HCV infection." (M.D. Robek, B.S. Boyd, F.V. Chisa...

Polymers with copper show promise for implanted sensors

...In some instances, the chemistry in the polymer is sensitive to moisture and heat, so whether it can be easily commercialized is one of the big issues," he said. In addition, the polymer coating must be very thin for most biomedical applications, which limits the amount of nitric oxide that can be stored and r...

Nanoscale Diagnostic Sets Sights on Alzheimer's

...y : - Gold nanoparticles and bio-bar codes bring sensitive DNA detection - Nanoparticle-Based Bio–Bar Codes...bar codes, which are then measured by an extremely sensitive detector. Each DNA piece greatly increases the sensitivity of the test and its potential to tell doc...

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