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Latest G protein coupled receptors Stories

The Evolution Of Vision
2012-10-30 04:46:51

April Flowers for redOrbit.com - Your Universe Online A new study from the University of Bristol, published in the Proceedings of the National Academy of Sciences (PNAS), sheds light on the origin of sight in animals, including humans. The research team, led by Dr. David Pisani of Bristol's School of Earth Sciences, used computer modeling to provide a detailed picture of how and when opsins evolved. Opsins are conjugated protein enzymes. These enzymes are components of the visual...

2012-10-17 22:52:30

On the road at night or on a tennis court at dusk, the eye can be deceived. Vision is not as sharp as in the light of day, and detecting a bicyclist on the road or a careening tennis ball can be tough. New research reveals the key chemical process that corrects for potential visual errors in low-light conditions. Understanding this fundamental step could lead to new treatments for visual deficits, or might one day boost normal night vision to new levels. Like the mirror of a telescope...

2012-10-10 22:00:18

Results may help improve drugs for neurological disorders Researchers have published the first highly detailed description of how neurotensin, a neuropeptide hormone which modulates nerve cell activity in the brain, interacts with its receptor. Their results suggest that neuropeptide hormones use a novel binding mechanism to activate a class of receptors called G-protein coupled receptors (GPCRs). "The knowledge of how the peptide binds to its receptor should help scientists design...

2012-09-19 16:18:31

A new study of the sense of smell lends support to a controversial theory of olfaction: Our noses can distinguish both the shape and the vibrational characteristics of odorant molecules. The study, in the journal Physical Chemistry Chemical Physics, demonstrates the feasibility of the theory — first proposed decades ago — that the vibration of an odorant molecule´s chemical bonds — the wagging, stretching and rocking of the links between atoms — contributes to...

Propofol Controlled With Light, Possible Blindness Help As Well
2012-09-14 08:58:36

Connie K. Ho for redOrbit.com — Your Universe Online A new study by German researchers found that a light-sensitive element that was mixed with the anesthetic propofol was able to be managed by light and the mixture could possibly be used to treat particular eye disorders. To begin, the scientists believe that inhibitory neurotransmitters can limit the activity of neurons and this reduction effect acts as the foundation for different anesthetics. In particular, propofol can work...


Word of the Day
ween
  • To think; to imagine; to fancy.
  • To be of opinion; have the notion; think; imagine; suppose.
The word 'ween' comes from Middle English wene, from Old English wēn, wēna ("hope, weening, expectation"), from Proto-Germanic *wēniz, *wēnōn (“hope, expectation”), from Proto-Indo-European *wen- (“to strive, love, want, reach, win”).
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