Abstract
1 There are no selective effects of Na+, K+, Ca2+, Mg2+ or Cl- on the binding of antagonists or agonists to muscarinic receptors in rat brain. A decrease in affinity related to ionic strength is found for all these ions. 2 Larger effects were produced by T1+, La3+, and some transition metal ions.
MeSH terms
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Animals
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Brain / metabolism
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Carbachol / metabolism
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Choline / analogs & derivatives
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Choline / metabolism
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Ions / pharmacology*
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Parasympatholytics / metabolism*
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Parasympathomimetics / metabolism*
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Potassium Chloride / pharmacology
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Rats
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Receptors, Cholinergic / metabolism*
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Receptors, Muscarinic / metabolism*
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Scopolamine / metabolism
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Sodium Chloride / pharmacology
Substances
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Ions
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Parasympatholytics
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Parasympathomimetics
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Receptors, Cholinergic
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Receptors, Muscarinic
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Sodium Chloride
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Potassium Chloride
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Carbachol
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Scopolamine
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Choline