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  • Neurons/*metabolism  (3)
  • American Association for the Advancement of Science (AAAS)  (3)
  • 1
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    Response to comments on "Local impermeant anions establish the neuronal chloride concentration" (2014)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2014-09-06
    Beschreibung: We appreciate the interest in our paper and the opportunity to clarify theoretical and technical aspects describing the influence of Donnan equilibria on neuronal chloride ion (Cl(-)) distributions.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4410268/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4410268/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Glykys, J -- Dzhala, V -- Egawa, K -- Balena, T -- Saponjian, Y -- Kuchibhotla, K V -- Bacskai, B J -- Kahle, K T -- Zeuthen, T -- Staley, K J -- R01 NS040109/NS/NINDS NIH HHS/ -- U01 MH106013/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 2014 Sep 5;345(6201):1130. doi: 10.1126/science.1253146.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA. ; New York University School of Medicine, Skirball Institute for Biomolecular Medicine, New York, NY, USA. ; Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA. ; Department of Cellular and Molecular Medicine, University of Copenhagen, Denmark. ; Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA. staley.kevin@mgh.harvard.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25190789" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Brain/*metabolism ; Chloride Channels/*metabolism ; Chlorides/*metabolism ; Neurons/*metabolism ; Receptors, GABA-A/*metabolism
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
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    Local impermeant anions establish the neuronal chloride concentration (2014)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 2014-02-08
    Beschreibung: Neuronal intracellular chloride concentration [Cl(-)](i) is an important determinant of gamma-aminobutyric acid type A (GABA(A)) receptor (GABA(A)R)-mediated inhibition and cytoplasmic volume regulation. Equilibrative cation-chloride cotransporters (CCCs) move Cl(-) across the membrane, but accumulating evidence suggests factors other than the bulk concentrations of transported ions determine [Cl(-)](i). Measurement of [Cl(-)](i) in murine brain slice preparations expressing the transgenic fluorophore Clomeleon demonstrated that cytoplasmic impermeant anions ([A](i)) and polyanionic extracellular matrix glycoproteins ([A](o)) constrain the local [Cl(-)]. CCC inhibition had modest effects on [Cl(-)](i) and neuronal volume, but substantial changes were produced by alterations of the balance between [A](i) and [A](o). Therefore, CCCs are important elements of Cl(-) homeostasis, but local impermeant anions determine the homeostatic set point for [Cl(-)], and hence, neuronal volume and the polarity of local GABA(A)R signaling.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4220679/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4220679/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Glykys, J -- Dzhala, V -- Egawa, K -- Balena, T -- Saponjian, Y -- Kuchibhotla, K V -- Bacskai, B J -- Kahle, K T -- Zeuthen, T -- Staley, K J -- NS 40109-06/NS/NINDS NIH HHS/ -- R01 EB000768/EB/NIBIB NIH HHS/ -- R01 NS040109/NS/NINDS NIH HHS/ -- R01 NS074772/NS/NINDS NIH HHS/ -- R25 NS065743/NS/NINDS NIH HHS/ -- S10 RR025645/RR/NCRR NIH HHS/ -- U41 RR019703/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2014 Feb 7;343(6171):670-5. doi: 10.1126/science.1245423.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24503855" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Brain/*metabolism ; Cell Membrane Permeability ; Cell Polarity ; Chloride Channels/*metabolism ; Chlorides/*metabolism ; Cytoplasm/metabolism ; Extracellular Matrix Proteins/metabolism ; Glycoproteins/metabolism ; Mice ; Mice, Transgenic ; Neurons/*metabolism ; Receptors, GABA-A/*metabolism ; Recombinant Fusion Proteins/genetics/metabolism ; Signal Transduction
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
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    Ionic mechanisms of neuronal excitation by inhibitory GABAA receptors (1995)
    American Association for the Advancement of Science (AAAS)
    Details
    Publikationsdatum: 1995-08-18
    Beschreibung: Gamma-aminobutyric acid A (GABAA) receptors are the principal mediators of synaptic inhibition, and yet when intensely activated, dendritic GABAA receptors excite rather than inhibit neurons. The membrane depolarization mediated by GABAA receptors is a result of the differential, activity-dependent collapse of the opposing concentration gradients of chloride and bicarbonate, the anions that permeate the GABAA ionophore. Because this depolarization diminishes the voltage-dependent block of the N-methyl-D-aspartate (NMDA) receptor by magnesium, the activity-dependent depolarization mediated by GABA is sufficient to account for frequency modulation of synaptic NMDA receptor activation. Anionic gradient shifts may represent a mechanism whereby the rate and coherence of synaptic activity determine whether dendritic GABAA receptor activation is excitatory or inhibitory.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Staley, K J -- Soldo, B L -- Proctor, W R -- AA03527/AA/NIAAA NIH HHS/ -- HD27827/HD/NICHD NIH HHS/ -- NS01573/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1995 Aug 18;269(5226):977-81.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurology, University of Colorado Health Sciences Center, Denver 80262, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7638623" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Acetazolamide/pharmacology ; Amiloride/pharmacology ; Animals ; Bicarbonates/*metabolism ; Chlorides/*metabolism ; Dendrites/metabolism ; Hydrogen-Ion Concentration ; In Vitro Techniques ; Magnesium/pharmacology ; Membrane Potentials ; Muscimol/pharmacology ; Neurons/*metabolism ; Pyramidal Cells/metabolism ; Rats ; Receptors, GABA-A/*metabolism ; Receptors, N-Methyl-D-Aspartate/metabolism ; Synapses/metabolism ; gamma-Aminobutyric Acid/*metabolism/pharmacology
    Print ISSN: 0036-8075
    Digitale ISSN: 1095-9203
    Thema: Biologie , Chemie und Pharmazie , Informatik , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von American Association for the Advancement of Science (AAAS)
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    AKTUELLE ARTIKEL
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