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Tag: "extract" at biology news

Color-blind method opens new doors in DNA sequencing

...hose nucleotides. In sequencing, scientists first extract DNA from the nuclei of cells and through a painstaking series of bacterial cloning and/or polymerase chain reaction (PCR) steps, reduce its length to a manageable size of thousands of nucleotides. Using natural replicating enzymes, the DNA is tagged ...

Open microfluidic and nanofluidic systems

...d be accessible in such a way that one can add and extract liquid in a convenient manner. An appealing design principle for such microcompartments is based on open and, thus, directly accessible surface channels which can be fabricated on solid substrates using available photolithographic methods. The simpl...

Circles Of DNA Might Help Predict Success Of Stem Cell Transplantation

...in the parent cell," Handgretinger said. "So if we extract large numbers of sjTRECs from T cells in the blood of a patient about to undergo a stem cell transplant, that's a good sign. It means the patient's thymus is a good T-cell factory." Handgretinger is the senior author of the Blood report. The St. Ju...

Ice core 'dipstick' indicates West Antarctic ice has thinned less than believed

...ed into a very thin band, researchers were able to extract an isotope record that provided a picture of temperature and snowfall patterns near Siple Dome. The layers get thinner and thinner with depth, as more ice and snow piles up. But the thinness of the layers deposited near the end of the Last Glacial Ma...

Tiny scaffolding allows stem cells to become working fat cells

...lmark task of fat cells. Researchers were able to extract RNA from the cells, just as they can from naturall...ion of fat cells has other vital roles. Fat cells extract lipids, or fatty acids, from the bloodstream. They also become a huge reservoir for glucose as well,...

Influenza vaccine uses insect cells to speed development

...ifying hemagglutinin from an influenza virus. They extract the genes responsible for the production of hemagglutinin from the virus and insert them into a baculovirus. Caterpillar cells are then infected with the virus and begin to produce the hemagglutinin. The FluBlok vaccine has recently finished phase I...

Vampire bats keep out of trouble by running

... need to hurry to catch the cattle from which they extract perhaps a tablespoon of blood at a time for sustenance. They feed while their prey are sleeping, spending perhaps 10 minutes drinking from the small cuts they make. However, running may help them avoid being stepped on, Riskin suggests. More likely, ...

wFleaBase: the Daphnia genome database

..., which currently contains functions to search and extract information from expressed sequenced tags, genome survey sequences and full genome sequencing projects. This new database is built primarily from core components of the Generic Model Organism Database project, and related bioinformatics tools. Ove...

Breakthrough isolating embryo-quality stem cells from blood

...ity of Leipzig have developed a procedure that can extract and isolate embryo-quality stem cells from adult blood for the first time. This new technique could unlock the stem cell revolution and stimulate a boom in medical research using stem cells. Stem cells are cells which have not yet differentiated int...

Software Tool for Converting Scientific Text into a Database of Functional Relationships

...he effects of regulation, and can be customized to extract other types of information. "The majority of phar...t has become simple to customize dictionaries, and extract new types of relationships by adding or editing linguistic patterns. MedScan users can create inform...

Ariadne Genomics Announces the Release of PathwayStudio?Central, Client-Server Software for Biological Pathway Analysis

...extraction tool that can “read?scientific text and extract functional relationships on the fly? said Ilya Mazo, President of Ariadne Genomics. “They can get an immediate view of all known relationships for a protein or a small molecule, build pathways from gene lists or results of PubMed searches, or predict...

Chemists synthesize molecule that helps body battle cancers, malaria

...ung cancer, prostate cancer, HIV-1 and malaria. An extract from the bark of the South American tree Quillaja saponaria Molina, QS-21A is available only in small quantities. "Now that we have synthesized this remarkable molecule and confirmed its structure, we are in a position to examine how it works and in...

Proteomics brings researchers closer to understanding microbes that produce acid mine drainage

...eogenomic" technique Banfield and her team used to extract the proteome from the biofilm involved dicing up all the proteins in a melange of the organisms, then determining at ORNL the masses of these short proteins, called peptides, with "shotgun" mass spectrometry. To identify the peptides from their masse...

Most common lung cancers may begin in newly discovered cells

...at are destroyed in emphysema. Or scientists could extract the BASCs, alter their genes, and replace them in a kind of cellular gene therapy for genetic diseases such a cystic fibrosis. "This work has identified a new population of cells that links the normal biology of the lung to lung cancer development,"...

Spider blood found in 20 million year old fossil

... fossil. It is possible the blood could be used to extract DNA. The fossil, which is 4cm long and 2cm wide, was discovered in the Dominican Republic and dates back to the Miocene period. Palaeontologist Dr David Penney, of the School of Earth, Atmospheric and Environmental Sciences, has now used the blood ...

Researchers devise new technique for creating human stem cells

...tire cell. Thus, it is not practical to physically extract the nucleus, as is currently done with oocytes, which have a relatively small nucleus. An alternative approach of destroying the embryonic stem cell nucleus with chemicals or radiation would induce the cell's suicide program, called apoptosis, he sai...

Scientists devise way to measure RNA synthesis on the fly in a live cell

...equired killing and breaking up a cell in order to extract an RNA molecule. With those techniques, "one cannot detect in real time the underlying dynamics of RNA synthesis associated with cellular activities," he said. But the scientists in his laboratory have found a way around this with a technique called ...

Seaweed could make junk food healthier

Junk food could be made healthier by adding an extract of an exotic type of seaweed, say British scientis...tine which usually covers the meat, as the seaweed extract has gelling properties too." Prof Pearson, who has already made loaves of bread containing the seaw...

MERIS monitoring tracks planetary photosynthesis levels

...ields the MGVI product. "It is a complex task to extract the required information from the reflected light MERIS measures," explains Nadine Gobron of EC-JRC. "It requires the development of mathematical tools to minimise the effects due to scattering from atmospheric particles, the presence of soils and th...

Women cautioned against using herbal supplements

...st designed studies found no effect; ginkgo biloba extract was found to have no effect, while a beneficial response from chaste tree berry extracts was found in about half the women studied. For menstrual pain, two clinical trials have examined the Japanese herbal preparations toki-shakuyakusan and toki-shak...

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