| Literature DB >> 10633171 |
R A Bakker1, K Wieland, H Timmerman, R Leurs.
Abstract
Transient expression of the wild-type human histamine H(1) receptor in SV40-immortalised African green monkey kidney cells resulted in an agonist-independent elevation of the basal levels of the second messenger inositoltrisphospate. Several histamine H(1) receptor antagonists, including the therapeutically used anti-allergics cetirizine, loratadine and epinastine reduced this constitutive histamine H(1) receptor activity. Inverse agonism, i.e., stabilisation of an inactive conformation of the human histamine H(1) receptor, may therefore be a key component of the anti-allergic mechanism of action of clinically used antihistamines.Entities:
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Year: 2000 PMID: 10633171 DOI: 10.1016/s0014-2999(99)00803-1
Source DB: PubMed Journal: Eur J Pharmacol ISSN: 0014-2999 Impact factor: 4.432