Novel Photoconductive Cellular Depolarization Technology Reveals Insight Into Neuronal Growth, Guidance, and Regeneration
BOSTON, Jan. 30 /PRNewswire/ -- Neurosilicon's novel Photoconductive Stimulation Device (PSD) was highlighted in the recent scientific publication by Hung and Colicos titled, Astrocytic Ca2+ Waves Guide CNS Growth Cones to Remote Regions of Neuronal Activity. The article appearing in the November ...
Clues Found to Brain Mechanism Behind Migraines
...familial hemiplegic migraine (FHM), a subtype of severe migraine accompanied by the aura.
Brain imaging has previously shown that strong neuronal depolarization
creeps across the cerebral cortex during CSD, initially increasing electrical signals in the brain, then suppressing neural activity for an extended p...
Slices of living brain tissue are helping scientists identify new stroke therapies
...at engulf and engorge brain cells following a stroke.
It's called anoxic depolarization
and it primarily results from the brain getting insufficient blood and oxyg...Kirov is testing to see whether these sigma receptor ligands inhibit anoxic depolarization
in humans to forecast translational success.
Tsunami in the brain
...e, even unaffected areas of the brain are at risk depolarization
waves arise at the edges of the dead tissue and sp...rizations first proven in stroke patients
waves in the brain known as cortical spreading de...features are thus known from animals the waves of depolarization
that can spread out at a speed of two to five mill...
Depolarization in Medical Technology
Depolarization in Medical Definition
Depolarization-induced suppression of inhibition
...of inhibitory currents could be invoked simply by depolarization
of the target cell, this phenomenon was termed de...r whose synthesis or release was stimulated by the depolarization
of the target cell. This messenger then diffused "... cerebellum, Kreitzer's group also discovered that depolarization
of Purkinje cells could also cause a temporary red...
Depolarization in Medical Dictionary
...tery disease). Learn about causes like ... An EKG is taken of the person before, during, and after the stress tests. ... Visual of EKG with depolarization
and Repolarizaton ... 12-Lead EKG Interpretation Tips ... Atrial Enlargement and Ventricular Hypertrophy EKG Characteristics ... An electrocar...
Depolarization in Biological News
Depolarization in Biological Technology
Depolarization in Biological Definition
In biology, depolarization
refers to the event a cell undergoes when its membrane potential grows more positive with respect to the extracellular solution. Depolarization
typically results from the influx of positively charged ions (such as sodium or calcium ) into the cell. Alternative...
...a favorite target.
Diversity and activation
Voltage-gated channels sense the transmembrane potential and open or close in response to depolarization
or hyperpolarization , respectively. Examples include the sodium and potassium voltage-gated channels of nerve and muscle, and the voltage-gated ...
...Within the cells , small-molecule neurotransmitter molecules are packaged in vesicles . When an action potential travels to the synapse, the rapid depolarization
causes calcium ion channels to open. Calcium then stimulates the transport of vesicles to the synaptic membrane: the vesicle and cell membrane fus...
Depolarization in Biological Dictionary
In biology, depolarization
is a change in a cell's membrane potential, making it more positive, or less negative. In neurons and some other cells, a large enough depolarization
may result in an action potential. Hyperpolarization is the opposite of depolarization
, and... Depolariz...
...a deep invagination of the sarcolemma , which is the plasma membrane, only found in skeletal and cardiac muscle cells. These invaginations allow depolarization
of the membrane to quickly penetrate to the interior of the cell. ... a role in remodelling of sarcolemma , sarcoplasmic reticulum, and myofibril...
... voltage changes across ... For example, hyperpolarization , in which the difference between the interior and ... Hyperpolarization reduced and depolarization
increased the 5-HTH; the mean ... Hyperpolarization of the membrane decreased or caused no apparent change in 5-HTD. ... The hyperpolarization ...
...diately after an action potential , in which it is difficult or ... The action potential is the all-or-nothing electrical ... This spike of depolarization
represents the action potential . ... There is thus no loss of signal as an action potential travels along an axon. ... Textbook Reference ...