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Tag: "produces" at biology news

Molecular 'signature' protects cells from viruses

Every cell constantly produces a whole arsenal of proteins. The instruction what ...us re-programmes it: the cell production line then produces large numbers of new virus capsules. These are filled with virus RNA and attack more cells. 'How...

Silver bullet: UGA researchers use laser, nanotechnology to rapidly detect viruses

...d with methods that detect the antibodies a person produces in response to an infection. Tripp explained that these tests are prone to false positives because a person can still have antibodies in their system from a related infection decades ago. The tests are also prone to false negatives because some peopl...

Research holds promise for herpes vaccine

...n a suit of armor, Halford said. However, herpes produces a protein, ICP0, that tricks every infected cell into destroying its own armor. Once the cell's armor is gone, the virus can propagate itself and spread to other cells, which are in turn tricked into lowering their defenses. In his research, Halfo...

Vaccine for brain tumors shows promising results

...Antigenics, the Massachusetts biotech company that produces the vaccine from the patient's tumor tissue. Because of the size of the tumor, Hekkala will receive injections every other week until mid-February. So far, results are promising with no sign of tumor regrowth, according to the Parsa. "Every day I ...

Scientists discover role for dueling RNAs

...A that comprise the gene unravel. The first strand produces a molecule called messenger RNA, which acts as the protein's template. Biologists call this first strand of DNA the "sense" or "coding" transcript. Even though the other strand doesn't contain a protein recipe, it may also, on occasion, produce an "a...

Newly discovered behavior in cancer cells signals dangerous metastasis

...rroundings necessitate. The proteins that the cell produces dictate which way the cell shifts. In a classic example of survival of the fittest, a cancer cell's ability to toggle between epithelial and mesenchymal enables the most malignant cells to aggressively invade and then peacefully adapt in unfamiliar ...

HIV exploits competition among T-cells

...nt strains. The winners ?the T cells that the body produces in mass quantities to fight the disease ?are the ones with the best overall record against the most recogniztable strains. Among the losers, however, there may be T cells that better control the other less recognizable, but still deadly, strains. "...

Flu shot effective against drifted influenza, nasal spray vaccine less so

...aab, professor emeritus of epidemiology. MedImmune produces it under a license with the University. Monto's research team is conducting a randomized, double-blind, placebo-controlled three-year trial with National Institutes of Health funding in which the two vaccines are being compared head-to-head and ag...

New dwarf buffalo discovered by chance in the Philippines

...ssils to be found in the Philippines, which rarely produces fossils due to its hot, wet conditions, which are not conducive to fossil preservation. Only a few fossils of elephants, rhinos, pig, and deer have been found previously, according to Dr. Angel Bautista, a co-author of the study and curator of anthro...

Stem cell activity deciphered in the aging brain

...eurobiologists have discovered why the aging brain produces progressively fewer new nerve cells in its learning and memory center. The scientists said the finding, made in rodents, refutes current ideas on how long crucial "progenitor" stem cells persist in the aging brain. The finding also suggests the poss...

Reading Shakespeare has dramatic effect on human brain

...he brain and catches it off guard in a manner that produces a sudden burst of activity - a sense of drama created out of the simplest of things." Experts believe that this heightened brain activity may be one of the reasons why Shakespeare's plays have such a dramatic impact on their readers. Professor N...

Three-dimensional, miniature endoscope opens new diagnostic possibilities

...e developed a new type of miniature endoscope that produces three-dimensional, high-definition images, which may greatly expand the application of minimally invasive diagnostic and therapeutic procedures. In the October 19 issue of Nature, the team from the Wellman Center for Photomedicine at MGH describes t...

Intrinsic eye protein halts angiogenesis

.... "We want to know what it is in the cornea that produces so much of this protein which inhibits angiogenesis. With that knowledge we will be closer to fighting the growth of everything from vision-obscuring blood vessels in the eye to cancers," said Jayakrishna. ...

New target for cancer therapy identified

...quired to turn on, and also inhibit, the gene that produces telomerase. They have found two proteins Smad3 and c-Myc that are involved in turning off telomerase production. Their findings are published in the current issue of the Journal of Biological Chemistry. "It's significant to find inhibitors of te...

Electronic chip, interacting with the brain, modifies pathways for controlling movement

...connects neighboring sites in the motor cortex, it produces long-lasting changes. Namely, the movements evoked from the recording site changed to resemble those evoked from the stimulation site. The researchers said that a likely explanation for these changes is the strengthening of pathways within the cort...

Gene transfer using mutant form of good cholesterol cuts vascular plaque and inflammation

Transfer of a gene that produces a mutant form of good cholesterol provides significantly better anti-plaque and anti-inflammation benefits than therapy using the "normal" HDL gene, according to a mouse study conducted by cardiology researchers at Cedars-Sinai Medical Center and rep...

Major cancer study aims to identify protein markers for early-stage disease

...s spectrometry is great. Currently, the technology produces varying results in different labs. Research in one lab may suggest certain proteins are associated with a given blood sample, while research in another lab may point to other proteins. The capacity to detect proteins in fluids is of intense interest...

Epstein-Barr virus might kick-start multiple sclerosis

...s-specific T cells. When B cells divide, the virus produces EBNA1 and uses it to slip its own DNA into the new cell. T cells that target EBNA1 are a crucial component of EBV-specific immune responses in individuals without MS. Lünemann, Edwards, and colleagues began by collecting T cells from 20 untreated pa...

Mayo Clinic Cancer Center: Harnessing the measles virus to attack cancer

... says Dr. Galanis. "When the virus replicates, it produces a marker protein that we can detect in the blood using a clinically-available assay. Repeat brain tumor biopsies for this purpose are not always safe or ethically justified. Instead we can monitor viral propagation in the tumor with a blood test, a...

Mobile DNA part of evolution's toolbox

... that is near a gene called Islet 1 (ISL1). ISL1 produces a protein that helps control the growth and differentiation of motor neurons. In the laboratory of Edward Rubin at the University of California, Berkeley, postdoctoral fellow Nadav Ahituv combined the human version of the LF-SINE sequence with a "rep...

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