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Affinities of the protonated and non-protonated forms of hyoscine and hyoscine N-oxide for muscarinic receptors of the guinea-pig ileum and a comparison of their size in solution with that of atropine.
1. At 37 degrees C in 0.1 M NaCl the pKa of hyoscine (10 mM) is 7.53; the non-protonated form has about one-tenth of the affinity (log K = 8.58) of the protonated form (log K = 9.58) for muscarine-sensitive receptors of the guinea-pig ileum at 37 degrees C. 2. In the same conditions the pKa of hyosc...
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| Hauptverfasser: | , |
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| Format: | Artigo |
| Sprache: | Inglês |
| Veröffentlicht: |
Nature Publishing Group
1981
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| Schlagworte: | |
| Online Zugang: | https://ncbi.nlm.nih.gov/pmc/articles/PMC2071641/ https://ncbi.nlm.nih.gov/pubmed/7284683 |
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