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Membrane Potentials - Physiology
Research News and Information
Definition of 'Membrane Potentials'The voltage differences across a membrane. For cellular membranes they are computed by subtracting the voltage measured outside the membrane from the voltage measured inside the membrane. They result from differences of inside versus outside concentration of potassium, sodium, chloride, and other ions across cells' or ORGANELLES' membranes. For excitable cells, the resting membrane potentials range between -30 and -100 millivolts. Physical, chemical, or electrical stimuli can make a membrane potential more negative (hyperpolarization), or less negative (depolarization). |
Saturday, November 21, 2009
29 Nov 2009 
ClC-2 chloride channel is present in the brain and some transporting epithelia where its function is poorly understood. We have now demonstrated that the surface channels are rapidly internalised and approximately the 70% of the surface membrane ... Read more...
19 Oct 2009 The Mas-related G-protein-coupled receptor D (Mrgprd) marks a distinct subset of sensory neurons that transmit polymodal nociceptive information from the skin epidermis to the substantia gelatinosa (SG, lamina II) of the spinal cord. Moreover, ... Read more...
Grafting neural precursor cells promotes functional recovery in an SCA1 mouse model.
19 Oct 2009 The B05 transgenic SCA1 mice, expressing human ataxin-1 with an expanded polyglutamine tract in cerebellar Purkinje cells (PCs), recapitulate many pathological and behavioral characteristics of the neurodegenerative disease spinocerebellar ataxia ... Read more...
Latest indexed articles for 'Membrane Potentials - Physiology'
These are the very latest articles for this heading:
- Rapid recycling of ClC-2 chloride channels between plasma membrane and endosomes: role of a tyrosine endocytosis motif in surface retrieval. 29 Nov 2009
- Mrgprd-expressing polymodal nociceptive neurons innervate most known classes of substantia gelatinosa neurons. 19 Oct 2009
- Grafting neural precursor cells promotes functional recovery in an SCA1 mouse model. 19 Oct 2009
- Retrograde viral vector-mediated inhibition of pontospinal noradrenergic neurons causes hyperalgesia in rats. 12 Oct 2009
- Receptive field organization across multiple electrosensory maps. II. Computational analysis of the effects of receptive field size on prey localization. 8 Oct 2009
- Needle electromyography.
29 Sep 2009 - Trains of transcranial direct current stimulation antagonize motor cortex hypoexcitability induced by acute hemicerebellectomy. 29 Sep 2009
- Non-proteolytic HCN2 in the heart. 23 Sep 2009
- AMPA receptor ligand binding domain mobility revealed by functional cross linking. 21 Sep 2009
- The neural network for chemotaxis to tastants in Caenorhabditis elegans is specialized for temporal differentiation. 21 Sep 2009
- A critical period for activity-dependent synaptic development during olfactory bulb adult neurogenesis. 21 Sep 2009
- A novel postsynaptic group II metabotropic glutamate receptor role in modulating baroreceptor signal transmission. 21 Sep 2009
- Vagal gustatory reflex circuits for intraoral food sorting behavior in the goldfish: cellular organization and neurotransmitters. 18 Sep 2009
- An environmental sensor, TRPV4 is a novel regulator of intracellular Ca2+ in human synoviocytes. 14 Sep 2009
- Activity of Hb9 interneurons during fictive locomotion in mouse spinal cord. 14 Sep 2009
- Selective expression of ligand-gated ion channels in L5 pyramidal cell axons. 14 Sep 2009
- Coding of stimulus sequences by population responses in visual cortex. 11 Sep 2009
- Serotonin targets inhibitory synapses to induce modulation of network functions. 10 Sep 2009
- Fast kinetics, high-frequency oscillations, and subprimary firing range in adult mouse spinal motoneurons. 7 Sep 2009
- Epac2 induces synapse remodeling and depression and its disease-associated forms alter spines. 4 Sep 2009
See a longer list of these articles.
Technical information about 'Membrane Potentials'
Definition: The voltage differences across a membrane. For cellular membranes they are computed by subtracting the voltage measured outside the membrane from the voltage measured inside the membrane. They result from differences of inside versus outside concentration of potassium, sodium, chloride, and other ions across cells' or ORGANELLES' membranes. For excitable cells, the resting membrane potentials range between -30 and -100 millivolts. Physical, chemical, or electrical stimuli can make a membrane potential more negative (hyperpolarization), or less negative (depolarization).
Descriptor UI: D008564
Alternative terms: Membrane Potentials; Membrane Potential; Potential, Membrane; Potentials, Membrane; Transmembrane Potential Difference; Difference, Transmembrane Potential; Differences, Transmembrane Potential; Potential Difference, Transmembrane; Potential Differences, Transmembrane; Transmembrane Potential Differences; Transmembrane Electrical Potential Difference; Transmembrane Potentials; Potential, Transmembrane; Potentials, Transmembrane; Transmembrane Potential; Resting Potentials; Potential, Resting; Potentials, Resting; Resting Potential; Resting Membrane Potential; Membrane Potential, Resting; Membrane Potentials, Resting; Resting Membrane Potentials;
Allowable Qualifiers: drug effects; genetics; immunology; physiology; radiation effects; ethics;
Tree Number: G01.154.535; G04.580; G07.265.750; G11.561.570;
History Note: 68(67)
Technical Notes: coordinate with organ /physiol