Abstract
The injection ofBordetella pertussis, inactivated by merthiolate, causes a 2-fold increase in the IC50 of carbamylcholine (carbachol) in displacing [3H];-L(−) quinuclidinyl benzilate binding ([3H]QNB) to the receptor. In control animals, 50 μM Gpp(NH)p causes a 6-fold decrease in the affinity of carbachol binding, whereas after vaccination the reduction is only 1.6-fold. After pertussis treatment there is no alteration in the affinity and number of [3H]QNB binding sites of to the muscarinic receptor.
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Aguilar, J.S., Fonseca, M.I. & De Robertis, E. Pertussis vaccine reduces agonist binding to the rat heart muscarinic receptor and its guanine nucleotide modulation. Neurochem Res 11, 745–752 (1986). https://doi.org/10.1007/BF00965342
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DOI: https://doi.org/10.1007/BF00965342