Navigation Links

Tag: "excitation" at biology news

50-year-old Mystery Solved: Protein Tags Regulate Key Ion Channel

...bed in the 1950s when it was recognized to control excitation of nerves, the reason for leak had not previously been understood. The first human clone of this channel, K2P1, generated a good deal of excitement, Goldstein said, but no one could learn much about it because it always seemed to be mute. "This disc...

Plants reveal a secret and bring researchers nearer a cleaner future

...fluorescence from the sample that is emitted after excitation with X-rays. They flashed the sample with a laser and registered the change using X-ray fluorescence every 10 microseconds to find out how different oxidation states developed. When carefully analysing the reaction kinetics, they observed a time de...

Team led by Carnegie Mellon University scientist finds first evidence of a living memory trace

... a matrix of the extent (or amplitude) of neuronal excitation and inhibition within glomeruli. He retrieved a spatial pattern of synchronized, correlated activity ?the memory trace ?from what appeared to be random fluctuations of neural activity. "The trace is like a fingerprint that disappears over time. It's...

Molecular mechanism may explain how fevers spark seizures

...the cell membrane could leave a neuron open to the excitation and repetitive firing that characterizes seizures. The investigators are currently studying where the receptors go when the temperature is raised -- are they taken inside the cell more quickly, are they degraded, is their forward insertion into the c...

Experimental drug reverses key cognitive deficits, pathology in Alzheimer's

... such cellular responses as the wave of electrical excitation of a nerve impulse. As an animal model of AD, the researchers used a "triple knockout" mouse in which three key genes involved in normal brain protein processing pathways had been knocked out, creating both amyloid plaques and neurofibrillary tangl...

Striking the right balance between excitation and inhibition

...le of Notch as an arbitrator of the choice between excitation and inhibition, Goulding says: "The degree of Notch expression on one neuron tells the sibling cell that it cannot be the same thing. If it is up-regulated in one cell, Notch will be down-regulated in its sibling. "There are thousands of different ki...

Researchers add to understanding of how brain cells communicate

...d NR1/2D. Although NR1/2A receptors require strong excitation to let calcium ions flow across the membrane, NR1/2D receptors respond even to weak inputs. In this paper, Johnson and Qian further elucidate how NR1/2D receptors do this. Johnson was most surprised to find that the magnesium ion, which strongly b...

Hopkins researchers discover how brain protein might control memory

...er-excite a cell to death, says Worley, and if the excitation controls come off, the strength of long-term memory is altered. So what does Arc's control over brain cell receptors mean for our ability to remember where we put the car keys? "We know that animals lacking Arc live only in the here and now. They ...

Drug treatment improves learning in mice with Down syndrome symptoms, Stanford/Packard study shows

...l brains maintain a precise ratio between neuronal excitation and inhibition that allows efficient learning. In ...mation. "In general, learning involves neuronal excitation in certain parts of the brain," said Garner. "For example, caffeine, which is a stimulant, can make ...

Protein enables discovery of quantum effect in photosynthesis

...osynthetic energy transfer process as one in which excitation energy hops from light-capturing pigment molecules to reaction center molecules step-by-step down the molecular energy ladder. "The classical hopping description of the energy transfer process is both inadequate and inaccurate," said Fleming. "It ...

1

Other Tags
(Date:7/25/2014)... July 25, 2014 In the first broad-scale estimate of ... scientists and collaborators calculated that trees are saving more ... incidences of acute respiratory symptoms. , While trees, pollution ... less than 1 percent, the impacts of that improvement ... the reduced air pollution at nearly $7 billion every ...
(Date:7/25/2014)... of people lived on the land now called California, ... the availability of plants they used for food, fuel, ... to maintain desired habitat and natural resources. , Frank ... Southwest Station, will lead a field trip ... Ecological Society of America,s 99th Annual Meeting, in Sacramento, ...
(Date:7/25/2014)... scars on this false-color image from the Terra satellite show ... rash of wildfires in Eastern Russia. The burn scars ... background. The wildfires have broken across the remote parts ... this false-color image from the MODIS instrument, it is ... that continue. Two recent image features noted below show the ...
Breaking Biology News(10 mins):First national study finds trees saving lives, reducing respiratory problems 2Fire ecology manipulation by California native cultures 2Fire ecology manipulation by California native cultures 3
(Date:7/25/2014)... are more easily distracted during thinking and memory tasks ... any type of memory test administered reveals a decline ... co-author Randi Martin, professor of psychology at Rice University, ... said, this study shows that "environmental interference" has a ... younger adults. The study included 60 seniors, aged ...
(Date:7/25/2014)... As reported by People Magazine in the article Mike ... Sober (7/15), one of the most popular cast stars ... the public about his personal transformation. Now, two years later ... moving on with his life was a challenge. He was ... 2012 and even spent some time in rehab. He took ...
(Date:7/25/2014)... AttorneyOne.com, a recognized authority on law, update the ... on Ibuprofen and Oxcarbazepine Tablets . , The ... and one lot of Oxcarbazepine Tablets, by American Health Packaging ... is used for the treatment of certain types of seizures ... the recall is that Lot #142588, Expiration Date, 01/2016 of ...
(Date:7/25/2014)... 2014 Parker Waichman LLP, a national ... comments on a recent tobacco lawsuit in which a ... billion in punitive damages. Cynthia Robinson brought the lawsuit ... case is Cynthia Robinson v. R.J. Reynolds Tobacco Company ... Circuit Court, Escambia County, Florida; Case Number 2008 CA ...
(Date:7/25/2014)... Philadelphia, PA (PRWEB) July 25, 2014 ... that Valerie D. Weber, MD, MS, FACP, has been appointed ... , Weber will join Drexel from The Commonwealth Medical College, ... Sciences, associate dean for clinical affairs, and professor of medicine. ... of The Commonwealth Medical College, Weber had a major role ...
Breaking Medicine News(10 mins):Health News:Distractions Seem More Troublesome With Age 2Health News:'The Situation' Celebrates 8 Months of Sobriety 2Health News:'The Situation' Celebrates 8 Months of Sobriety 3Health News:Ibuprofen and Oxcarbazepine Tablets Recalled: AttorneyOne Monitors and Keep Consumers Informed 2Health News:A Florida Jury Awards Widow More Than $23 Billion in Punitive Damages in a Lawsuit Brought Against Tobacco Maker, R.J. Reynolds, Parker Waichman LLP Comments 2Health News:A Florida Jury Awards Widow More Than $23 Billion in Punitive Damages in a Lawsuit Brought Against Tobacco Maker, R.J. Reynolds, Parker Waichman LLP Comments 3Health News:Valerie D. Weber, MD, Appointed Vice Dean for Education at Drexel University College of Medicine 2Health News:Valerie D. Weber, MD, Appointed Vice Dean for Education at Drexel University College of Medicine 3
Other Contents