H1 receptor


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H1 receptor

a type of histamine receptor on vascular smooth muscle cells through which histamine mediates vasodilation. See also histamine blocking agent.
References in periodicals archive ?
Effect of activation of the H1 receptor on coronary hemodynamics in man.
Histamine can also affect other receptors of the cell surface than the H1 receptor, explains Professor Ilkka Harvima of the University of Eastern Finland.
H1 receptor activation also causes smooth muscle contraction in the airways, leading to bronchospasm, and in the GI tract causing nausea, vomiting, bloating abdominal cramps and diarrhoea.
First-generation H1 receptor antagonists achieve receptor blockage in a dose-dependent fashion.
Intranasal corticosteroids versus topical H1 receptor antagonists for the treatment of allergic rhinitis: a systematic review with meta-analysis.
But when pyrilamine blocked the H1 receptor, blood flow to the skin was dramatically reduced.
LAS VEGAS -- Nonsedating H1 receptor antagonists should be frontline therapy in treating chronic idiopathic urticaria, Dr.
Intravenous pheniramine maleate (1 mg/kg) which is a H1 receptor antagonist and methylprednisolone (2 mg/kg) were administered.
TABLE 22LEADING MANUFACTURERS OF H1 RECEPTOR ANTAGONISTS 40