Current human embryonic stem cell lines contaminated UCSD/Salk team finds
...periments, the researchers used recently developed probes todetect the presence of Neu5Gc on the cell surface of human embryonicstem cells that had been grown in traditional culture conditions. Thescientists further confirmed the presence of Neu5Gc with a processcalled electrospray mass spectrometry. The pe...Newly discovered virus linked to childhood lung disorders and Kawasaki disease
...hn and co-workers at YaleUniversity used molecular probes targeting a gene that is common inhuman and animal...their findings the New Haven coronavirus,then used probes specific for the virus to screen respiratory specimensfrom 895 symptomatic children under age 5 who ...First 'atlas' of key brain genes could speed research on cancer, neurological diseases
...sed in the brains of developing mice.Using genetic probes to investigate thin sections of mouse brains, thescientists found that only 349 of the TF genes were expressed inspecific regions, and not throughout the brain, as the majority were.They inferred that these 349 genes, therefore, controlled thedevelop...Nano-Probes Allow an Inside Look at Cell Nuclei
...aboratory have developed a way to sneak nano-sized probes inside cell nuclei where they can track life's fun... illuminated by a laser. Because these fluorescent probes are stable and nontoxic, they have the ability to remain in a cell's nucleus -- without harming the ......ynthesis of oligonucleotides, including diagnostic probes and primers, antisense including RNAi, microRNA, DNA-based and aptamer drugs and represents a substantial portion of the cost to manufacture these oligonucleotides. NittoPhase?has been rigorously tested at both small and large scales, and has been o...Genrate: a generative model that finds and scores new genes and exons in genomic microarray data
...ions (e.g. tissues) and co-location and density of probes in DNA sequence data. GenRate balances probabilistic evidence derived from different sources and outputs scores (log-likelihoods) for each gene model, enabling the estimation of false-positive and false-negative rates. The model has a number of loca...Researchers develop rapid diagnostic tool for pathogen identification
...ng and detection of genetic polymorphisms. Genetic probes for pathogens were coupled to markers known as mass codes. After amplification, incorporated mass codes were detected by mass spectroscopy allowing identification of the pathogen. According to Thomas Briese, PhD, associate director of the Greene Inf...Duke engineers develop new 3-D cardiac imaging probe
...ing therapeutic treatment devices such as ablation probes that burn off damaged cells that cause an irregula...Pua has done." "Maintaining the size of normal TE probes was a main factor in the design since 3-D imaging inherently requires significantly more sensors tha...Brain-injury rehabilitation depends on acetylcholine circuitry
...am injection. The researchers then used electrical probes to create small lesions in the rats' brain region responsible for controlling limb movement. They then gave the rats rehabilitation training. The control group of rats recovered about 55% of the deficit in their reaching ability, while the rats lack...Microscopic brain imaging in the palm of your hand
...o microendoscopy, tiny, minimally invasive optical probes that could be inserted deep into living brain tissue. To make one group of images (figures 1c-1e), the researchers inserted the microendoscope into the hippocampus, about a millimeter below the mouse brain surface, to image this part of the brain. T...Most common lung cancers may begin in newly discovered cells
... research group to develop microscopic fluorescent probes to image the unique molecular surface of BASCs and track the progress of the naturally arising tumor, Jacks said. The similar genetic activity profile of mouse tumors with K-ras mutations to the profile of human lung cancer samples make the researche...Gene Bridges And Covalys To Develop Restriction-Enzyme-Free SNAP-tag Gene Fusion Kits
...beling protein tag which covalently links chemical probes to proteins of interest without prior purification. The combined products will allow scientists to easily add the SNAP-tag gene onto any cloned gene, at any position, so that the SNAP-tag can be used to study protein function and interaction. The cl...New technique rapidly detects illness-causing bacteria
...es tiny sequences of complementary DNA -- known as probes -- that are exactly matched to stick to the rRNA t... to another sequence of the S. pyogenes rRNA. The probes attach to the target rRNA sequence when the test tube is placed in a water bath for about 25 minutes...Tagging pathogens with synthetic DNA 'barcodes'
...icals of interest by tagging them with color-coded probes made out of synthetic tree-shaped DNA. A research...t," he said. Several years ago researchers created probes consisting of nanoscale bars of metal actually etched with conventional bar codes. Since then, most ...Errors in the measurement of global warming corrected
...e, says that direct heat of the sun on temperature probes of the weather balloon (radiosonde) probably explains the discrepancy between reports showing that atmospheric temperatures have been unchanged since the 1970's, while temperatures at the Earth's surface are rising. For the last 40 years radiosonde ...NHGRI expands effort to revolutionize sequencing technologies
...group will design novel nanopores articulated with probes to sequentially, and directly, identify nucleotide...stigators from this group will hybridize short DNA probes to genomic DNA fragments to determine sequence information. In addition, they will use optical mappi...'Smart' nanoprobes light up disease
...sly through skin, muscle and cartilage, so the new probes could alert doctors to tumors and other diseases s...s particularly powerful about the protease imaging probes described in this study is the combination of the contrast enhancement achievable through an activat...Magnetic probe successfully tracks implanted cells in cancer patients
By using MRI to detect magnetic probes of tiny iron oxide particles, an international res...ron oxide particles. This new application of the probes -- already clinically approved for MRI scanning of the liver -- could dramatically improve efforts t...Team led by Carnegie Mellon University scientist finds first evidence of a living memory trace
...ulb. Team member Marcel Weidert placed fluorescent probes within different glomeruli, and imaged their activity using dyes sensitive to the opening and closing of calcium channels on neurons. The scientists created an imaging grid across the glomeruli and measured the ratio of fluorescence versus nonfluores...Microbes under Greenland Ice may be preview of what scientists find under Mars' surface
...e, as some scientists have proposed, then unmanned probes to the Martian surface should look for them at depths where the temperature is about 10 degrees Celsius (18 degrees Fahrenheit) warmer than that found at the base of the Greenland ice sheet, according to UC Berkeley lead researcher P. Buford Price, a...New nanosensor uses quantum dots to detect DNA
Using tiny semiconductor crystals, biological probes and a laser, Johns Hopkins University engineers ha...r that, the Johns Hopkins team used two biological probes made of synthetic DNA. Each of these probes is a complement to the DNA sequence the researchers are ...3D ultrasound device poised to advance minimally invasive surgery
Three-dimensional ultrasound probes built by researchers at Duke's Pratt School of Eng...engineers said their demonstration showed that the probes could give surgeons a better view during human endoscopic surgeries in which operations are performe...Rare Tibetan antelope listed as endangered
Three-dimensional ultrasound probes built by researchers at Duke's Pratt School of Eng...engineers said their demonstration showed that the probes could give surgeons a better view during human endoscopic surgeries in which operations are performe...Powerful new tool for studying brain development
... expression is visible because special tags called probes bind to messenger RNA (mRNA)--the decoded form of the gene--and release a signal that can be seen using a special microscope. Gene expression refers to the production of mRNA, which becomes the blueprint the cell uses to make the protein coded for by...Study suggests that publicly available genome data may contain small but significant errors
...sion yeast S. pombe and examined how they bind to probes arrayed on a glass slide, they were able to computationally derive the "distance" between probes in the genome and organize the probes along the genome. The resulting physical map of the S. pombe g...Berkeley researchers lay groundwork for cell version of DNA chip
...rous-containing phosphine, as a means of attaching probes and reagents to cell surfaces, or to link different molecules inside of the cells. "The Staudinger ligation has been shown to be both cell friendly and precise, so we exploited the reaction to very specifically link a DNA molecule to the surface o...Markers of gene, protein, or micro-RNA activity predict outcome in prostate and colorectal cancers
...erson University used a microarray chip containing probes for most of the known miRNAs in human and mouse. The investigative team, led by Bruce Boman, M.D., Ph.D., director of Genetic and Preventive Medicine at Jefferson, used the array to first characterize the miRNA expression pattern in intestinal epithe...AIDS-related cognitive impairment exists in two separate forms
...erson University used a microarray chip containing probes for most of the known miRNAs in human and mouse. The investigative team, led by Bruce Boman, M.D., Ph.D., director of Genetic and Preventive Medicine at Jefferson, used the array to first characterize the miRNA expression pattern in intestinal epithe...3-D ultrasound scanner could guide robotic surgeries
...ller ultrasound arrays, the researchers engineered probes that could fit inside catheters threaded through blood vessels to view the vasculature and heart from the inside. Earlier this year, the team reported another advance: a 3-D ultrasound device including 500 tiny cables and sensors packed into a tube...Study offers innovative profile of enzyme that aids tumor growth
...ivity-based proteomics probe for this enzyme. Such probes are now available for many enzyme classes that participate in cell metabolism, so Cravatt suggests "a large swath of the enzyme proteome" could be addressed using the study's experimental strategy. "The success of our study opens the door to ass...Study finds the air rich with bacteria
...ab's Earth Sciences Division. Their DNA microarray probes air samples for a gene involved in making proteins, called 16S rRNA, which is found in all bacteria. The square-shaped microarray, which is called PhyloChip and is roughly the size of a quarter, can detect up to 9,000 different types of this gene, ea...Altered perception of reward in human cocaine addiction
...ith sensitive behavioral, cognitive, and emotional probes to optimize the study of drug addiction, a psychopathology that these tools have helped to identify as a disorder of the brain." Goldstein will present details of these studies at a press conference on neuroscience and addiction at the Society for...Dig deeper to find Martian life
...s that the chance of finding life with the current probes is slim. Scientists will need to dig deeper and target very specific, hard-to-reach areas such as recent craters or areas where water has recently surfaced. Dr Andrew Coates, UCL Department of Space & Climate Physics, said: "This study is try...Faster, low cost sequencing technologies needed to drive era of personalized medicine
...ce DNA by applying a sample to single stranded DNA probes attached to a chip. An atomic force microscop...cing by hybridization are limited by the number of probes that can be placed on a chip," said Jian Gu, a research staff member in the Center for Applied NanoB...Triplex assay used to assay duplex genomic DNA
...o they can be mixed with standard amounts of oligo probes for the purpose of automatic in solution assay. The instrument is easy to program, self-cleaning and inexpensive. Daksis indicated that she expected to soon publish data on the use of the Genome Flow® instrument to carry out triplex assaying of ge...Infection detectives use disease 'fingerprints' to track common infections in children
...cial gene chip called a microarray, which contains probes for the whole human genome and measures which genes are turned on or off. In this study, researchers analyzed gene expression patterns in leukocytes from 29 children at Children’s known to have one of four common infections: flu (influenza A); s...UC Davis researchers use heated nanoprobes to destroy breast cancer cells in mice
...eNardo and her colleagues infused trillions of the probes -- more than 10,000 can fit on the end of a straig... human breast tumors. Once in the bloodstream, the probes began to seek out and latch onto receptors on the surface of malignant cells. Three days later, t...pHLIP, a novel technology to locate and treat tumors
...archers demonstrated that by attaching fluorescent probes to a pHLIP peptide, tumors could be detected. They expect that by attaching and delivering active agents with pHLIP, that tumors may be able to be treated. Targeting is based on the fact that most tumors, even very small ones, are acidic as a result ......Electron Microscopy, a national user facility that probes material at the nanoscale. They found that the zinc sulfide nanoparticles were arranged in dense aggregates. Such tightly packed metal sulfide formations are not new to scientists, but they do beg a question that remains unanswered: Why do the nanopa......pecially designed DNA probes. "All together, these probes would have seven times the length of human genome," illustrates Weigel the extent of the project. The data were evaluated with several specially designed statistical methods, including a variant of machine learning. The result of this painstaking a...