منابع مشابه
Inverse agonism of histamine H2 antagonist accounts for upregulation of spontaneously active histamine H2 receptors.
Histamine H2 receptors transfected in Chinese hamster ovary (CHO) cells are time- and dose-dependently upregulated upon exposure to the H2 antagonists cimetidine and ranitidine. This effect appears to be H2 receptor-mediated as no change in receptor density was observed after H1 or H3 antagonist treatment or after incubation with the structural analogue of cimetidine, VUF 8299, which has no H2 ...
متن کاملPhysiological implications of biased signaling at histamine H2 receptors
Histamine mediates numerous functions acting through its four receptor subtypes all belonging to the large family of seven transmembrane G-protein coupled receptors. In particular, histamine H2 receptor (H2R) is mainly involved in gastric acid production, becoming a classic pharmacological target to treat Zollinger-Ellison disease and gastric and duodenal ulcers. H2 ligands rank among the most ...
متن کاملAntinociceptive effect of the aqueous extract obtained from Foeniculum vulgare in mice: the role of histamine H1 and H2 receptors
Foeniculum vulgare (fennel) has been widely used in traditional medicine for treatment of variousdiseases including pediatric colic. This study was designed to assess the antinociceptive effects of aqueousextract of F. vulgare on visceral pain and possible involvement of opioidergic, serotonergic, adrenergic andhistaminergic systems. The results of this study showed that aqueous extract of F. v...
متن کاملHistamine suppresses gene expression and synthesis of tumor necrosis factor alpha via histamine H2 receptors
Histamine and tumor necrosis factor alpha (TNF-alpha) can each contribute to the pathogenesis of allergic reactions and chronic inflammatory diseases. We now report the effect of histamine on gene expression and total cellular synthesis of TNF-alpha. Lipopolysaccharide (LPS)-induced synthesis of TNF-alpha in peripheral blood mononuclear cells (PBMC) from 18 healthy donors was suppressed by hist...
متن کاملThe role of central endogenous histamine and H1, H2 and H3 receptors on food intake in broiler chickens
The role of endogenous histamine and H1, H2 and H3 central receptors on food intake in broiler chickenswas investigated. For this purpose, a probe was used to manipulate the concentration of endogenoushistamine by intracerebroventricular (ICV) injection of thioperamide, an H3 receptor antagonist, and R-α-methylhistamine, an H3 receptor agonist and subsequently the effects of brain histaminergic...
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ژورنال
عنوان ژورنال: Practica Oto-Rhino-Laryngologica
سال: 1994
ISSN: 1884-4545,0032-6313
DOI: 10.5631/jibirin.87.1281