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Tag: "interaction" at biology news

Creeping crinoids! Sea lilies crawl to escape predators, new video shows

...s and their predators. "We think that perhaps the interaction between these slow-moving, bottom-dwelling predators and crinoids is a long one," he said, "and that it may have been connected in some way to pushing crinoids into developing these defensive strategies." ...

U. of Colorado researcher identifies tracks of swimming dinosaur in Wyoming

...s and their predators. "We think that perhaps the interaction between these slow-moving, bottom-dwelling predators and crinoids is a long one," he said, "and that it may have been connected in some way to pushing crinoids into developing these defensive strategies." ...

NJIT study shows nanoparticles could damage plant life

... suspect is what contributes to the growth-slowing interaction between the seeds and the nanoparticles. The small...l not understood, said Watts, is the nature of the interaction between the nanoparticle and the root of the seed. "What is the mechanism of the interaction between...

Plant gene related to cancer treatment may foster new oncology drugs

...he uptake and release of molecules are mediated by interaction between the PGP transporter proteins and PIN facilitator proteins," Murphy said. ...

Nanoparticles, nanoshells, nanotubes: How tiny specks may provide powerful tools against cancer

...ar-infrared light delivered by a laser has minimal interaction with components found in tissue, and so also does .... "It is possible that if the lytic peptide has no interaction with the membrane it is targeting, it cannot kill," Leuschner says. The research group next looked...

Role of microRNA identified in thyroid cancer

...e more reasonably linked to a more subtle, complex interaction among several genes ?suggesting a possible role for miRNAs. MiRNAs are smidgens of genetic material no longer than 22 or so nucleotides in length. A gene, in comparison, can be tens of thousands of nucleotides long. Scientists used to think miRNAs ...

Bacterial protein mimics host to cripple defenses

...ssor of Plant Pathology Gregory Martin studies the interaction of Pseudomonas syringae bacteria with plants to find what determines whether a host succumbs to disease. Martin and graduate student Robert Abramovitch previously found that AvrPtoB, a protein Pseudomonas injects into plants, disables PCD in a variet...

Shorter colds, milder flu may follow from newly revealed immune mechanism

...ys. "If we can improve the outcome from this first interaction with the viruses, we are very likely to also prevent the later development of persistent airway disease." ...

Mining biotech's data mother lode

...like pieces of a jigsaw puzzle. BioGrid's protein interaction software includes a database of the 20,000 known protein structures and uses that database to identify which ones could potentially interact, among the thousands of proteins created by the over-expressing genes. Once interesting potential protein int...

Yale participates in global human genome initiative

...g ways to exchange and compare data. The continued interaction is expected to help optimize rapid, genome-wide screening and accelerate drug discovery. The other Global Initiative founding member institutions are the Campbell Family Institute for Breast Cancer Research at Princess Margaret Hospital and the Sam...

Is it Possible to Change Prescribing Habits?

... alert was displayed if a relevant drug–laboratory interaction existed. Comparisons were made between baseline and post-intervention periods. Provider ordering behavior was monitored, focusing on the number of medication orders not completed and the number of rule-associated laboratory test orders initiated aft...

Researchers show key protein necessary for normal development of red blood cells

... complex differentiation pathway that involves the interaction of many molecular players and proteins. In humans, there are four globin genes clustered on chromosome 11 in the order in which they are "turned on" or expressed. These genes include the epsilon-globin gene, two gamma-globin genes and the beta-glob...

Finding the mind's eye

...dings may advance the understanding of the brain's interaction with the eye by identifying the neural basis of conscious experience, a relationship important to the fields of medicine, neurology and psychology. Tse and his co-authors, Susana Martinez-Conde, Alexander A. Schlegel and Stephen L. Macknik of the Ba...

Cancer support cells may evolve, fuel tumor growth, study shows

...ing tissue and immune cells," said Van Dyke. "The interaction between the predominant cancer cell type and other types of surrounding cells is important in the development of disease." The signals that go back and forth between cells contain selective pressures, not only on the cancer cell itself but also on t...

UCLA discovery will aid in treatment of patients with a deadly brain cancer

... other cancers suggested that the key might be the interaction of the PTEN protein and a mutant protein called EGFRvIII. About half of patients with amplified EGFR also have this mutant protein. The UCLA team and their collaborators studied a subset of 26 glioblastoma patients who either responded very well or ...

How Rickettsial pathogens break into cells

...ria," Cossart said. "The mechanism underlying this interaction remains unclear, so we are now investigating how rOmpB, expressed by R. conorii, interacts with Ku70 and allows bacterial entry." Her team has already shown that Ku70 has to be present in certain well-organized regions of the cell membrane called r...

Microbes under Greenland Ice may be preview of what scientists find under Mars' surface

...s not replenishing the methane, Price noted. While interaction of carbon-bearing fluid with basaltic rock might be responsible, methanogens might instead take in subsurface hydrogen and carbon dioxide to make the methane, he said. If methanogens are responsible, Price calculated that they would occur in a conce...

Researchers discover new form of cancer gene regulation

...ls from outside of the cell in the form of protein interaction with the cell surface. Through a series of intracellular events, these signals trigger gene activation or repression through action of transcription factors in the nucleus of the cell. The altered gene expression profile then results in cellular dif...

Chlamydia parasite lives off our fat

...ia loves our lipid droplets. The discovery of an interaction between lipid droplets and Chlamydia was made as Kumar and Valdivia performed the genetic equivalent of an end-run. Chlamydia is not amenable to direct genetic manipulation so the researchers moved the pathogen's genes elsewhere, inserting them into ...

Performing monkeys in Asia carry viruses that could jump species to humans

...ght increase the risk of a bite, scratch, or other interaction that could lead to exposure to monkey body fluids...., but that has been detected in other monkey-human interaction settings in Asia. Two of the monkeys tested positive for simian retrovirus (SRV), which, though it h...

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