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Tag: "known" at biology news

Antibodies from plants protect against anthrax

...man or animal pathogens, and plant viruses are not known to infect humans," says Yusibov. "It is an easy, inexpensive and, very stable system. If you're looking for a way to stockpile a large amount of antibodies for a long periods of time, plant-produced antibodies are the answer," says Baillie. Anthrax...

White blood cell waste disposal system plays critical regulatory role

...ion and destruction are not well understood, it is known that the immune signaling molecules IL-17 and G-CSF stimulate neutrophil production. In addition, a newly discovered molecule called IL-23 that is produced by phagocytes has been shown to stimulate IL-17 production. Dr. Klaus Ley and colleagues from ...

New RNA polymerase discovered in plants

...fers to as the catalytic, or "business end" of any known polymerase. "So, we took a reverse-genetics appro...t the fourth polymerase was involved with what are known as micro RNAs, which are known to regulate flower development, but that proved wrong." In a series ...

NJIT Presidential Award winner takes stem cell research another step

...wing that stem cells, when mixed with biomaterials known as scaffolds, can help regenerate bone growth; and another proving that stem cells taken from one person can be successfully implanted into another. A list of conditions for which stem-cell treatment holds promise grows almost daily: It now includes ...

Bird Brains Show How Trial and Error May Contribute to Learning

...ting motor variability," Brainard said. "It's been known for a long time that this circuit is important in learning. Our data supports the hypothesis that one of the things it could be doing is introducing variability." Other researchers in the Brainard and Doupe labs are following up to see if the male m...

The Bacteria's guide to survival

...increased in activity due to the tugs were already known to regulate apoptosis and cellular response to str...the membrane. Also, a majority of these genes were known to be induced by a family of proteins called mitogen-activated protein kinases, or MAPKs. The resear...

Influenza vaccine uses insect cells to speed development

... The vaccine strategy pursued by Protein Sciences, known commercially as FluBlok, does not rely on whole vaccine virus. It uses a purified concentration of a key molecule on the surface of the virus, called hemagglutinin, to elicit an immune response against that specific strain of the virus. Wang and his...

RNA project to create language for scientists worldwide

...indings. An international team of RNA scientists, known as the RNA Ontology Consortium, has now been forme...he Northwest Ohio Bioinformatics Consortium, he is known internationally for his work on RNA structural bioinformatics--the field of science in which biology...

TEL2 gene cooperates with MYC gene to provoke B-cell lymphomas

...tion, is another member of the ETS family and is a known target of mutations in human leukemia. Grosveld's ...3 in the development of B lymphoma. It was already known that many human B-cell lymphomas over-express the MYC gene, either because the tumor cells acquire a...

Examination of internal 'wiring' of yeast, worm, and fly reveals conserved circuits

...fly (Drosophila melanogaster) proteins with 38,965 known interactions. Their PathBLAST tool generated a lis...at we are seeing something real." Biologists have known for many years that in even distantly related species, nature doesn't reinvent the wheel. Similar pr...

Falling ants glide back to trunk to avoid dangers of forest floor

...n (UTMB). Gliding ants ?the only wingless insects known to actively direct their fall ?were first observed last year outside Iquitos, Peru, by insect ecologist Stephen P. Yanoviak of UTMB. While perched 100 feet up in the rainforest canopy waiting for mosquitoes to alight and feed on his blood, Yanoviak c...

Unexpressed But Indispensable -- The DNA Sequences That Control Development

...everal clusters also appear in regions without any known genes—the identification of these clusters might lead to the discovery of new developmentally significant genes. While “in silico?discoveries such as this can be the jumping-off point for whole new areas of investigation, their validity must be test...

Scientists discover that host cell lipids facilitate bacterial movement

...f stimulating actin assembly and PIP2 and PIP3 are known to localize to regions of new actin assembly, Dr. Southwick and his colleagues decided to explore the roles these lipids play in Listeria infection. "We had expected to see PIP2 and PIP3 only at the very back of Listeria where new actin assembly was...

UF Researchers Map Bacterial Proteins That Cause Tooth Loss

...ent in the proteome based on similarities to other known proteins, said Fletcher. “This study has done two things to advance that,?Lamont said. “We’ve identified the complete protein complement of the organism, and we’ve looked at how those proteins are expressed when the organism is in an environment tha...

Gene therapy for Parkinson's disease moves forward in animals

...death of brain cells that produce a vital chemical known as dopamine, which carries messages that tell the body how and when to move. In tests with 31 monkeys, including a control group, scientists inserted copies of a gene to produce GDNF into a region in the front part of the brain called the striatum. T...

Scientists find fossil proof of Egypt's ancient climate

...lly increased rainfall compared to the present are known to have occurred in the Sahara throughout the last million years, but their duration, intensity, and frequency remain somewhat unconstrained. Jennifer R. Smith, Ph.D., Washington University assistant professor of earth and planetary sciences in Arts...

Implanted Devices Detect High-Risk Heart Failure Patients

... stimuli by regulating their beating action -- are known to be at higher risk of suffering a heart attack. ...nutrients in the blood to the body's tissues. Also known as congestive heart failure, its many causes include infections of the heart, coronary artery diseas...

VCU Researchers Identify Networks Of Genes Responding To Alcohol In The Brain

...patterns regulated by alcohol in two mouse strains known as B6 and D2. The two mouse strains differ in a nu... three different regions of the brain that are all known to play a role in responses to alcohol and other drugs of abuse. Using DNA microarrays, which measur...

How an AIDS-Related Cancer Unleashes Inflammation

...B gene is very unusual; there's no homology to any known gene," said Ganem. "So, we had no clue as to what ... kaposin B binds to a protein called MK2, which is known to play a role in boosting cytokine production. In further experiments, they discovered that the bi...

Special Imaging Study Shows Failing Hearts Are 'Energy Starved'

...partment of Radiology. “While scientists have long known that nucleotide adenosine triphosphate (ATP) is the chemical that fuels heart contractions and that creatine kinase (CK) is the enzyme for one of the sources of ATP, we believe this is the first time someone has actually measured the flux of ATP prod...

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