Title : Carbachol-induced down-regulation of high-affinity receptors for vasoactive intestinal peptide.

Pub. Date : 1989 Sep

PMID : 2551183






7 Functional Relationships(s)
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1 When dispersed acini from guinea pig pancreas are first incubated with carbachol, the subsequent binding of 125I-vasoactive intestinal peptide (VIP) is inhibited during a second incubation. Carbachol VIP peptides Cavia porcellus
2 When dispersed acini from guinea pig pancreas are first incubated with carbachol, the subsequent binding of 125I-vasoactive intestinal peptide (VIP) is inhibited during a second incubation. Carbachol VIP peptides Cavia porcellus
3 This inhibitory action of carbachol on binding of 125I-VIP depends on time, temperature, and the concentration of carbachol in the first incubation and can be blocked by atropine. Carbachol VIP peptides Cavia porcellus
4 This inhibitory action of carbachol on binding of 125I-VIP depends on time, temperature, and the concentration of carbachol in the first incubation and can be blocked by atropine. Carbachol VIP peptides Cavia porcellus
5 Adding EGTA to the first incubation medium abolishes the effect of carbachol on binding of 125I-VIP. Carbachol VIP peptides Cavia porcellus
6 In control acini or acini first incubated with carbachol, approximately half of the bound 125I-VIP can be stripped by acetic acid. Carbachol VIP peptides Cavia porcellus
7 The dose-response curve for carbachol-induced inhibition of binding of 125I-VIP and that for occupation of low-affinity muscarinic cholinergic receptors by carbachol are similar. Carbachol VIP peptides Cavia porcellus