E Burgisser

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The ability of guanine nucleotide to decrease the binding affinity of agonists but not antagonists has been documented in a number of hormone and neurotransmitter receptor systems. By contrast, recent reports indicate that both agonist and antagonist binding to the muscarinic cholinergic receptors appear to be regulated in a reciprocal fashion by guanine(More)
1. To determine the influence of loss of atrioventricular synchrony on release of atrial natriuretic peptide (ANP), plasma ANP concentrations were measured by radioreceptor assay in 16 patients during sequential and ventricular cardiac pacing at normal heart rates. 2. Ventricular pacing induced an increase in plasma ANP concentrations (means +/- SEM) from(More)
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