Tsunami in the brain
... even unaffected areas of the brain are at risk depolarization
waves arise at the edges of the dead tissue and ... first proven in stroke patients
waves in the brain known as cortical spreading ... are thus known from animals the waves of depolarization
that can spread out at a speed of two to five ...
Slices of living brain tissue are helping scientists identify new stroke therapies
... engulf and engorge brain cells following a stroke.
It's called anoxic depolarization
and it primarily results from the brain getting insufficient blood and ... is testing to see whether these sigma receptor ligands inhibit anoxic depolarization
in humans to forecast translational success.
Clues Found to Brain Mechanism Behind Migraines
... 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 ...
Depolarization in Medical Technology
Depolarization in Medical Definition
Depolarization-induced suppression of inhibition
... inhibitory currents could be invoked simply by depolarization
of the target cell, this phenomenon was termed ... 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 ...
Depolarization in Biological News
Depolarization in Biological Technology
Depolarization in Biological Definition
... In biology, depolarization
refers to the event a cell undergoes when its ... with respect to the extracellular solution. depolarization
typically results from the influx of positively ... or calcium ) into the cell. Alternatively, depolarization
can also happen if potassium channels are ...
... 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 ...
... 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 ...
Depolarization in Biological Dictionary
... In biology, depolarization
is a change in a cell's membrane potential, ... In neurons and some other cells, a large enough depolarization
may result in an action potential. Hyperpolarization is the opposite of depolarization
, ... ...
... 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 ...
... 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 ...
... 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 ...