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Tag: "interaction" at biology news

Researchers discover new route to hemoglobin synthesis

... in assessment of the quality of the mother-infant interaction in a supervised environment." ...

Opiate cocktail may spare cells from morphine's dark side

...he analgesic effects of morphine arise through the interaction of the drug with a specialized protein on the surface of cells, the mu opioid peptide receptor, or "MOP" receptor. MOP receptors are also activated by other opioid drugs and by endogenous opioids, such as endorphins. However, morphine is unique in th...

Protein structure key for AIDS, cell function

...le, researchers have shown that CD38 interrupts an interaction between the AIDS virus and its point of entry into cells -- a protein receptor called CD4. By looking at CD38's 3-D structure, the Cornell researchers identified a peptide, an organic compound composed of amino acids, that they believe may play a rol...

Gradient guides nerve growth down spinal cord

...lsion by Wnts. Antibodies that blocked the Wnt-Ryk interaction blocked the downward growth of corticospinal axons when injected into the space between the dura and spinal cord in newborn mice. This knowledge, coupled with emerging stem cell technologies, may provide the most promising current approach to nervou...

Molecular mechanism of feather formation found

...gulation of Shh expression. This dynamic signaling interaction fits a longstanding mathematical model known as an...ing feathers. The results suggested that a simple interaction between Shh and Bmp2 is sufficient to model the creation and patterning of barbs in feather developm...

'Cookbook recipes' would cure disease with nontoxic DNA delivery systems

Scientists studying the structure and interaction of negatively charged lipids and DNA molecules have created a "cookbook" for a class of nontoxic DNA delivery systems that will assist doctors and clinicians in the safe and effective delivery of genetic medicine. As reported in the Aug. 9 issue of ...

Learning how SARS spikes its quarry

...d Harrison. There was nothing surprising about the interaction itself, he noted. However, the studies revealed important new information about two specific amino acids on the spike protein. These were the amino acids that Farzan and his colleagues had previously determined to be the most critical for determining...

Environment, not genes, key in family relationships

...d systems lying within and helping to shape family interaction systems," said lead author John C. Loehlin, Ph.D.,...question of how children's genes help shape family interaction systems." ...

Exercise aside, genes may ultimately dictate seniors' mobility

... is the first study to show behavioral and genetic interaction in functioning and aging, and shows people are alr...ercisers, suggesting function was influenced by an interaction between exercise intensity and genetic make-up. In addition, seniors who reported weight training a...

Yale scientists identify structure for RNA quality control

...protein may allow the design of drugs to block the interaction between the antibodies and Ro," said Wolin. The r...protein may allow the design of drugs to block the interaction between the antibodies and Ro," said Wolin. The research team consisted of members from the Reinisc...

Brain networks change according to cognitive task

...ch different cognitive goals are achieved from the interaction between different brain regions. In addition to Bitan, Booth and Mesulam, co-authors of the article are Janet Choy and Douglas Burman of Northwestern's communication sciences and disorders department and Darren Gitelman, associate professor of neuol...

NHGRI expands effort to revolutionize sequencing technologies

...of DNA base identity. The key to the system is the interaction between a fluorescent polymerase and the nucleotide, which emits a signature detectable in real-time. Xiaohua Huang, Ph.D., University of California, San Diego, La Jolla. $750,000 (3 years) "Massively Parallel Cloning and Sequencing of DNA" The goa...

UT Southwestern researchers discover master switch in cell death

...ed to. The key to the researchers?finding was the interaction between the Mule enzyme and a major player in cell...ible routes a cell may take toward apoptosis, this interaction serves as one of the “master switches?controlling whether or not those other pathways are triggered....

Purdue researchers find key to rice blast fungus

...t area of his future research will be to learn the interaction among several signaling pathways in rice blast fungus that allows the pathogen to communicate with the plant. ...

Discovery that bacterium is phosphate gourmet key clue to what makes it most social of bacteria

...e phosphate signalling pathways, with considerable interaction between the three pathways. A further additional ...th also has evidence that the surprising extent of interaction between the three and a half phosphate signalling pathways is also found among the other 140 plus si...

Scientists and engineers apply nature's design to human problems

...vity of the Tech 'ecosystem.'" As CBID encourages interaction among its initial 17 members, Yen expects an increase in biomimetic research ?that is, research in biologically inspired design. Already, however, biomimetic research projects are under way in biosensing, materials design, locomotory devices, systems...

Complex gene interactions account for autism risk

...m the effects of single genes, but rather from the interaction of particular genes, or sets of genes, when they c..., autism is characterized by impairments in social interaction and communication and restricted and repetitive patterns of interest or behavior. While many previo...

Swimming with dolphins can alleviate depression

...he aesthetic value, and the emotions raised by the interaction with dolphins may explain the mammals' healing properties, they suggest. Three months after the study, participants in both groups also reported lasting improvement and did not require treatment. This suggests that in patients with mild or moderate ...

Brains response to visual stimuli helps us to focus on what we should see, rather than all there is to see

...o shape responses to stimuli. This "go-no" kind of interaction is necessary, Callaway says, or a positive feedback of chemical signals across neuronal synapses would result in a myriad of disorders, including epilepsy. They simultaneously measured activity in both a specific type of inhibitory neuron, called fa...

The first laugh: New study posits evolutionary origins of two distinct types of laughter

...ic. "Laughter that occurs during everyday social interaction in response to banal comments and humorless conversation is now being studied," write Matthew Gervais and David Sloan Wilson. "The unstated issue is whether such laughter is similar in kind to laughter following from humor." Using empirical evidence...

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