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Hyperpolarization in Medical Definition

Depolarization-induced suppression of inhibition

... , typically results in the influx of chloride ions into that target cell. This build-up of negative charge from the chloride ions results in the hyperpolarization of the target cell, making it less likely to fire an action potential . Accordingly, any ionic current that hyperpolarizes a cell is called an ...
Hyperpolarization in Biological News

New 'control knobs' for stem cells identified

... into fat and bone cells. They found that hyperpolarization (increased difference between the voltage in the ... vs. fat differentiation. To determine whether hyperpolarization was functionally required for differentiation, ... More study is needed to determine whether hyperpolarization also determines which specific type of cell stem ...
Hyperpolarization in Biological Technology

Bruker Introduces HyperQuant™, a Unique Bench-Top NMR Reader to Quantify Hyperpolarization

... for precisely quantifying both the magnetic hyperpolarization as well as the thermal polarization of a sample. ... Wire EON) September 10, 2008 -- Magnetic hyperpolarization promises to be a useful technique with potential ... in MRI and sensitivity in solid-state NMR. hyperpolarization provides a means to increase the nuclear magnetic ...

Berkeley scientists bring MRI/NMR to microreactors

... is a net excess in the para spin state even at room temperature and in the complete absence of a magnetic field. Under the right conditions, this hyperpolarization can be passed on to other nuclei and used to substantially boost the strength of their MRI/NMR signals by several orders of magnitude. Pines, ...
Hyperpolarization in Biological Definition

Hyperpolarization

... hyperpolarization has several meanings: In biology , hyperpolarization occurs when a cell's membrane potential dips below its resting level . In physics , hyperpolarization is the selective polarization of nuclear spin ...

Depolarization

... ions (such as sodium or calcium ) into the cell. Alternatively, depolarization can also happen if potassium channels are closed. Compare to hyperpolarization . Depolarization of membrane potentials is important for other cell types, particularly muscle cells. Related topics membrane potential ...

Ion channel

... 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 calcium channels that ...
Hyperpolarization in Biological Dictionary

Hyperpolarization

... hyperpolarization is a change in a cell's membrane potential ... It is the opposite of a depolarization. 4.3 hyperpolarization ("undershoot") 4.4 Refractory period. ... ion) ... Aspects of the topic hyperpolarization are discussed in the following places at ...

Depolarization

... a large enough depolarization may result in an action potential. hyperpolarization is the opposite of depolarization , ... Depolarization of ... must precede the ... That this depolarization was replaced by a slow hyperpolarization in the ... Such depolarization could allow afferent excitatory ...

Rhodopsin

... Electronica music singles, watch music videos, listen to free streaming mp3s, & read ... Cyclic Pathway of Rhodopsin and its Relationship to hyperpolarization of the Rod ... Rhodopsin undergoes a cyclic decomposition and reconstitution in response to the ... Rhodopsin (RHO) To see compiled data on ...
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