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Tag: "functions" at biology news

Brain activity related to processing faces is similar in people with, without autism

...r said. "We wanted to find out if these executive functions of particular brain regions that are critical for the appropriate generation of actions show deficits in autistic individuals. In addition, we wanted to see if these deficits were further compounded by the presence of social cues on which executive d...

Zooming in on the protein-conducting channel

...t yielded significant insight into how the channel functions to translocate proteins across or into membranes, said Frank. “Now that we have these new insights into the architecture of the PCC in its translocating, and possibly non-translocating state, we can explore the mechanisms of perpendicular versus lat...

Novel protein complex enables survival in hostile environment

...ture; two previously known proteins with unrelated functions have been physically combined by use of a linker. Even after this linking, the two units retain their individual characteristics. "We hypothesize that the NH2-terminal half of Fsr (named Fsr-N) collects electrons via F420 and the COOH-terminal half...

Neurons generated in the adult brain learn to respond to novel stimuli

...nd can contribute to important learning and memory functions of the brain, suggesting that similar, newly recruited neurons may be able to function in other parts of the brain," says Sanjay Magavi, PhD, who led the study as a fellow in the laboratory of Jeffrey Macklis, MD, DHST, director of the MGH-HMS CNSR. ...

Yale participates in global human genome initiative

...y found that several siRNAs regulate critical gene functions in normal development and in development of cancer. "Participation in this consortium gives us a cutting-edge technology to systematically screen the human genome using cell-based models of human diseases," said Kevin P. White , associate professo...

Genetic analysis of cavefish reveals more about evolution

...arget for mutations, and it seems to have no other functions besides helping to make melanin. Therefore, it doesn't diminish other aspects of fitness when it is mutated. ...

Gene Expression in the Aging Brain

...he cortex (the brain region responsible for higher functions such as thinking), they found a similar pattern of...n-cortical region, the cerebellum (whose principal functions include movement), was largely unchanged with age. In addition to confirming a prediction of the fre...

Navigating the brain for sense of direction as paradigm for higher cognitive functions

...he cortex (the brain region responsible for higher functions such as thinking), they found a similar pattern of...n-cortical region, the cerebellum (whose principal functions include movement), was largely unchanged with age. In addition to confirming a prediction of the fre...

Carnegie Mellon scientists create PNA molecule with potential to build nanodevices

...he cortex (the brain region responsible for higher functions such as thinking), they found a similar pattern of...n-cortical region, the cerebellum (whose principal functions include movement), was largely unchanged with age. In addition to confirming a prediction of the fre...

Limiting the damage in stroke

... ?in other types of cells the signal has important functions which are necessary for the animal to survive. So to test our hypotheses about its role in neurons, we needed more precise control of the gene." In parallel, Bernd Baumann and Thomas Wirth at the University of Ulm had generated two additional mouse m...

Discovering the first steps in transcription-coupled repair

...cognize the stalled RNAPII and carry out its other functions in TCR," says Cooper. "We think that even if CSB i...er. The new findings suggest that one of the major functions of TFIIH -- previously unsuspected -- is to clear the way for transcription-coupled repair by openin...

Meditation associated with structural changes in brain

... differences is involved in both the modulation of functions like heart rate and breathing and also the integration of emotion with thought and reward-based decision making ?a central switchboard of the brain," says Lazar. An instructor in Psychology at Harvard Medical School, she also stresses that the resul...

The brain is broadly wired for reproduction

...h the idea that GnRH neurons might have additional functions beyond controlling the pituitary, other investigat...ons are in brain areas involved in a wide array of functions -- for example, appetite, feeding, reward, arousal, and the relay of information to higher brain are...

MIT researcher presents new view of how the cortex forms

...n's topography and networks to create the specific functions and areas of the postnatal mammalian brain. ...

OHSU discovery sheds light into how stem cells become brain cells

...rt becoming glial cells, which perform a number of functions that include supporting the neurons. We wanted to find out what factors cause this switch in differentiation. We also wanted to determine if the process can be controlled and used as a possible therapy. What amazed us is that it turns out a single ge...

Chlamydia parasite lives off our fat

...half a billion years ago by reprogramming cellular functions from within. In humans today, chlamydial infections are responsible for a range of ailments from sexually transmitted infections to atypical pneumonias to chronic severe disorders such as pelvic inflammatory disease and atherosclerosis. The Centers f...

Technique offers new view of dynamic biological landscape

...files (E-MAP), has already been used to assign new functions to known genes, to uncover the roles of previously...hich restricts analysis to genes that have related functions and that also cluster in one place in the cell. In the Cell paper, they applied the E-MAP techniqu...

Scientists show how thinking can harm brain cells

...d a new culprit and method of attack on neurologic functions in diseases such as Alzheimer's and dementia associated with HIV. In an article in the Nov. 1 issue of The Journal of Clinical Investigation, the Rochester scientists describe a new mechanism by which brain cells can be damaged during chronic neurod...

Biologists discover new pathway into plant cells

...tein that can cross plant cell membranes, where it functions as a toxin to kill the cell. It had been known that viruses and bacteria can penetrate cell wall barriers and disrupt plant cells, but never before has a protein been found that could do this by itself. When more research is done, this may provide a...

'Computer-chemistry' yields new insight into a puzzle of cell division

... cyclin-dependent kinase protein complex that also functions as an enzyme, known as Cdk2-pTpY--CycA. The work was funded by the National Institutes of Health. Detailed study of such docking is important because uncontrolled overreaction of the Cdc25 family of enzymes has been associated with the development o...

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