Stoichiometry of the 9 10 Nicotinic Cholinergic Receptor

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Stoichiometry of the 9 10 Nicotinic Cholinergic Receptor

Paola V. Plazas,1 Eleonora Katz,1,2 Marı́a E. Gomez-Casati,1 Cecilia Bouzat,3 and A. Belén Elgoyhen1 1Institute of Investigations in Genetic Engineering and Molecular Biology, National Council of Scientific and Technical Investigations, and 2Department of Physiology, Molecular and Cellular Biology, Faculty of Exact and Natural Sciences, University of Buenos Aires, Buenos Aires 1428, Argentina, a...

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Direct Interaction of Serotonin Type 3 Receptor Ligands with Recombinant and Native 9 10-Containing Nicotinic Cholinergic Receptors

In the present work, we characterized the effects of serotonin type 3 receptor ligands on recombinant and native 9 10containing nicotinic acetylcholine receptors (nAChRs). Our results indicate that the recombinant 9 10 nAChR shares striking pharmacological properties with 5-HT3 ligand-gated ion channels. Thus, 5-HT3 receptor antagonists block ACh-evoked currents in 9 10-injected Xenopus laevis ...

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Effects of Quinine, Quinidine, and Chloroquine on 9 10 Nicotinic Cholinergic Receptors

In this study, we report the effects of the quinoline derivatives quinine, its optical isomer quinidine, and chloroquine on 9 10-containing nicotinic acetylcholine receptors (nAChRs). The compounds blocked acetylcholine (ACh)-evoked responses in 9 10-injected Xenopus laevis oocytes in a concentration-dependent manner, with a rank order of potency of chloroquine (IC50 0.39 M) quinine (IC50 0.97 ...

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A Novel Human Nicotinic Receptor Subunit, 10, That Confers Functionality to the 9-Subunit

We present herein the cloning of the human nicotinic acetylcholine receptor 9-ortholog and the identification of a new -like subunit ( 10) that shares 58% identity with 9. Whereas 10 fails to produce functional receptors alone, it promoted robust acetylcholine-evoked currents when coinjected with 9. The presence of 10 modifies the physiological and pharmacological properties of the 9 receptor i...

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Cholinergic Receptor Sensitivity Following Pharmacological Modulation of the Immune System

Objective. To study the effect of immunomodulators on learning and memory and on cholinergic receptor sensitivity. Methods. Animals were initially treated for a period of 8 days with cyclosporine/levamisole/saline. They were then subjected to passive avoidance training and 48 hrs later, the retention test for the passive avoidance task was conducted. Twenty-four hours after the retention tests ...

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ژورنال

عنوان ژورنال: Journal of Neuroscience

سال: 2005

ISSN: 0270-6474,1529-2401

DOI: 10.1523/jneurosci.3805-05.2005