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Tag: "simultaneously" at biology news

Newly-discovered class of genes determines ?and restricts ?stem cell fate

... cells: it directs them to become melanocytes, but simultaneously prevents them from differentiating completely. "It gets the show going, but at the same time, prevents the final act," says Epstein. "I call this dual function a "biological capacitor," because Pax3 tells the cell: Get ready to go, but at the same ti...

Leukemia Drug Breakthrough Study In New England Journal Of Medicine

...form of pre-leukemia. Given in pill form, Revlimid simultaneously blocks the growth of new blood vessels that nourish tumors (anti-angiogenesis) and stimulates the immune system to fight cancer cells. The study is reported in the Feb.10 issue of the New England Journal of Medicine. Nearly 90 percent of MDS patient...

Development of portable infectious disease detector

...el, is thedevelopment of a sensor suite capable of simultaneously measuring theconcentrations of the key chemicals that cells consume andexcrete--oxygen, glucose and lactic acid--with enough sensitivity tomonitor the health of a few thousand cells confined in a small volume.(For more detail see "New device can help...

Breakthrough method in nanoparticle synthesis paves the way for new pharmaceutical and biomedical applications

...notechnology (IBN) has developed a novel method to simultaneously control the size and morphology of nanoparticles, ...present a new class of materials that are tailored simultaneously with nanometer-scale particle size and nanometer-sized pores. This is a beautiful example of ‘bottom...

Researchers develop rapid diagnostic tool for pathogen identification

...echnology platform, called “Mass Tag PCR,?that can simultaneously screen for multiple infectious agents. The new technology is addressed in a paper published in the February issue of the Centers for Disease Control and Prevention's (CDC) Emerging Infectious Diseases. This new platform is demonstrated in an assay th...

Molecular Motors Cooperate In Moving Cellular Cargo, Study Shows

...ned on or off in a fashion that prevents them from simultaneously dragging the peroxisome." In the future, Selvin wants to combine FIONA and an optical trap technique to monitor the speed and direction of a peroxisome, and the force acting upon it. "By measuring force we can determine how many molecular motors ar...

Nanoscale Diagnostic Sets Sights on Alzheimer's

...ually be configured to detect hundreds of diseases simultaneously ?with a single procedure, doctors could quickly and inexpensively test a blood sample for any number of ailments. The researchers developed BCA to detect a mere few dozen molecules amongst a sample filled with billions and have already experimented w...

Microbial fuel cell: High yield hydrogen source and wastewater cleaner

...tural or industrial wastewater, for example -- and simultaneously clean the wastewater. "While there is likely insu...or BEAMR. The BEAMR not only produces hydrogen but simultaneously cleans the wastewater used as its feedstock. It uses about one-tenth of the voltage needed for elect...

To control germs, scientists deploy tiny agents provocateurs

... types of quorum sensing are beneficial, so we are simultaneously searching for compounds that selectively turn on group behaviors." Using new combinatorial chemistry techniques, Blackwell and her team are screening through hundreds of molecules at a time. The researchers have so far unveiled three promising organ...

Researchers make gains in understanding antibiotic resistance

...otics that possess the ability to bind to interact simultaneously with different, nearby sites on the ribosome represented by different classes of antibiotics," he said. "The idea is to take a bit of one antibiotic and tie it to another. So, if resistance arises due to a mutation in one site, there is still anothe...

Silence the gene, save the cell: RNA interference as promising therapy for ALS

...that causes ALS, the EPFL researchers were able to simultaneously deliver a normal version of the gene to motor neuron cells using a single delivery mechanism. "This is the first proof of principle in the human form of a disease of the nervous system in which you can silence the gene and at the same time produce an...

Scientists discover that three overlapping signals in embryo help get the backbone right

... combinations, finding the most dramatic effect by simultaneously knocking out noggin, follistatin, and chordin. Harland noted that the signaling pathway they blocked is one of several developmental pathways proceeding at the same time in the embryo. While BMP antagonists allow the formation of the back and belly,...

Marine sponge yields nanoscale secrets

...actively promotes the formation of the glass while simultaneously serving as a template to guide the shape of the growing mineral (glass) that it produces. These discoveries are significant because they represent a low temperature, biotechnological, catalytic route to the nanostructural fabrication of valuable mat...

Researchers develop assay that could be applied to drug screening

...colleagues Christien Merrifield and David Perrais, simultaneously measured the minute movements made by coated pits as they invaginated and detected membrane scission, the process by which a coated pit is converted into a clathrin coated vesicle. In further experiments, the researchers showed how proteins linked to...

New miniaturised chip dramatically reduces time taken for DNA analysis

...to assemble a set of sensors that can collect data simultaneously and deduce information about the bacteria such as ... even thousands, of genetic tests can be performed simultaneously with these chips, which are now a vital part of any large-scale project, such as unlocking the genet...

Unique library of plant genes germinates, takes root at UNC

...ty to compare the genetic maps of multiple species simultaneously and predict the gene content in regions of plant genomes that have not yet been deciphered." Besides Vision, others involved in the development of Phytome are Dr. Stefanie Hartmann, a postdoctoral researcher in biology; Dihui Lu, a graduate student ...

UN: World in big ecological mess

...from 315 million in 1999. The report was launched simultaneously at several UN headquarters around the world. "The challenge of ensuring the future of our environment is pressing and concerns us all, whether we work in education, science, culture or communication," UN Educational, Scientific and Cultural Organizat...

Mosaic mouse technique offers a powerful new tool to study diseases and genetics

... which would result in a mutant cell. This process simultaneously activates the green fluorescent protein, which turns the mutant cell green. "If there is no recombination, there are neither green nor mutant cells," Luo explains. "So even if only one cell turns green, we know it has to contain the mutated gene of ...

Bioinformatics reveals new gene regulation system

...rawn by the team was correct. Israeli researchers simultaneously showed through 'wet' biology experiments in Streptomyces bacteria that a transcription factor from this family represses Nrd gene expression in the living bacterial cell, confirming the Russian researchers' predictions. Confident that they had identi...

Enlisting genomics to understand flu evolution

...-a process that can occur when someone is infected simultaneously by more than one strain. The genetic reshuffling demonstrated in this study is the first to examine in detail a reassortment event from a persistently cocirculating minor strain to a previously dominant strain leading to an epidemiologically signific...

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