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Tag: "these" at biology news

Experiments provide proof of how traveling in groups protects insects

... to specific insects among untold millions. "With these remarkable new light-weight transmitters, we could keep track of individual crickets and find out what happened to them when they were in the band and also when we removed them and put them in other locations by themselves," Lorch said. "In repeated...

Protein Packages Found To Activate Genes; May Be What Regulates Development And Disease

... on the genes they wrap. In most cases, they found these tags turn genes on and off individually. The big s...rtain cancers. "Many of the proteins that regulate these genes can suppress or enhance tumor growth," Bernstein notes. "Some of the genes can cause cancer di...

First 'atlas' of key brain genes could speed research on cancer, neurological diseases

...eurological diseases that result from mutations in these switch genes?called “transcription factors.?When these genes are altered, thegenes they control can go awry, causing abnormalities in thedevelopment or fun...

New research questions basic tenet of neuron function

...urons were at rest and when they were active. From these observations, as well as data gathered from electr...types of vesicles. "The functional differences of these two sets of vesicles may be the result of differences in the protein and/or lipid composition of the...

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

...emoval of BCCs is aneffective approach to treating these cancers, which generally have aslow growth rate an...on of Gli2 is necessary forthe continued growth of these tumors. When Dlugosz and colleaguesturned Gli2 off, the BCC tumor cells stopped growing and wereelim...

Weill Cornell Research Reveals Secrets Of Trafficking Within Cells

...ust as hard to keep that brain alive. Every one of these cells -- and others throughout the body -- depends on an internal process called endocytosis to keep the flow of cellular nutrients and information healthy and strong. It's an incredibly important life process, and now researchers at Weill Medical C...

Experiments provide proof of how traveling in groups protects insects

... to specific insects among untold millions. "With these remarkable new light-weight transmitters, we could keep track of individual crickets and find out what happened to them when they were in the band and also when we removed them and put them in other locations by themselves," Lorch said. "In repeated...

New Study from Affymetrix Laboratories Points to Changing View of How Genome Works

... and exciting questions: What are the functions of these previously unannotated transcripts and what are th...ody. Most disease research has focused on studying these protein-coding genes, even though they make up only about two percent of the human genome sequence. ...

First-ever Compounds To Target Only Metastatic Cells Are Highly Effective Against Breast, Prostate, And Colon Cancers

...range of other cancers, too. "What's unique about these analogues is that they do all this without affecti...t." Exact mechanisms remain unclear. "Obviously, these compounds are targeting some step in the cell-migration process," Dr. Huang said. The activity of a ...

Discovery of key protein's shape could lead to improved bacterial pneumonia vaccine

... protein on the surface ofpneumonia bacteria helps these germs invade the human bloodstream. Thisfinding, p...carbohydrates naturally appearing onthe surface of these bacteria. When used in a vaccine, these pieces ofcarbohydrate stimulate the immune system to make an...

Critical role in programmed cell death identified

...is really one way of killing cells and it involves these mitochondria. Using genetics, we could rigorously ...ve multiple components or families of proteins for these factors; moreover, their cell death is more sporadic and harder to pinpoint. In worms, scientists k...

New comparative toxicogenomics database

... protein on the surface ofpneumonia bacteria helps these germs invade the human bloodstream. Thisfinding, p...carbohydrates naturally appearing onthe surface of these bacteria. When used in a vaccine, these pieces ofcarbohydrate stimulate the immune system to make an...

ASU researchers finds novel chemistry at work to provide parrot's vibrant red colors

...ellow coloration, but McGraw and Nogare found that these compounds are not responsible for the red colors f...to denote status or attractiveness). As he studied these aspects, he wanted to understand more about what makes the colors of the birds possible, and then fo...

Genetically modified natural killer immune cells attack, kill leukemia cells

...researchers were not able to grow large numbers of these immune cells in the laboratory, and because NK cel...of the researchers to collect a pure population of these immune cells. The researchers then genetically modified the growing NK cells so they carried on the...

UCSD researchers maintain stem cells without contaminated animal feeder layers

...inated with a non-human molecule called Neu5Gc. If these stem cells were to be transplanted into people, th...ryonic stem cells cultured for several weeks under these conditions showed no change in cell form and structure. The team then eliminated each factor and plu...

Transport System Smuggles Medicines Into Brain

...ellow coloration, but McGraw and Nogare found that these compounds are not responsible for the red colors f...to denote status or attractiveness). As he studied these aspects, he wanted to understand more about what makes the colors of the birds possible, and then fo...

Probing The Promise And Perils Of Nanoparticles

...the damage can be prevented. "If you're inventing these sorts of materials, you need to be concerned about...argets inside the body, but high concentrations of these nanoparticles can be toxic. In earlier work, U-M researchers discovered that dendrimers punch nanosc...

Open microfluidic and nanofluidic systems

.... Like the test-tubes in macroscopic laboratories, these microcompartments should have some basic propertie... rectangular cross section. The width and depth of these channels can be varied between a hundred nanometer and a couple of micrometer. At first sight, it s...

Gene Vaccine Protects Mice Against Development Of Her2/neu Breast Cancer

...e replicon particles, referredto as “VRP-neu.?When these non-propagating particles are injected intoan animal, the vector directs the animal’s cells to make thousands ofcopies of the HER2/neu growth protein, says Lachman.In addition, the VRP-neu preferentially homes to specialized immunesystem cells known ...

Highly adaptable genome in gut bacterium key to intestinal health

... of molecular biology and pharmacology. "Together, these microbes can be viewed as a 'microbial organ' that lives within the intestine and harvests, stores and redistributes energy from the diet." Because changes in the composition of this "microbial organ" may be deleterious to human health, it is import...

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