First Author | Hossen MA | Year | 2003 |
Journal | Int Immunopharmacol | Volume | 3 |
Issue | 12 | Pages | 1563-8 |
PubMed ID | 14555281 | Mgi Jnum | J:106208 |
Mgi Id | MGI:3617740 | Doi | 10.1016/S1567-5769(03)00009-2 |
Citation | Hossen MA, et al. (2003) Histamine H3 receptors regulate vascular permeability changes in the skin of mast cell-deficient mice. Int Immunopharmacol 3(12):1563-8 |
abstractText | The participation of histamine H(3) receptors in the regulation of skin vascular permeability changes in mast cell-deficient mice was studied. Although intradermal injection of histamine H(3) antagonists, iodophenpropit and clobenpropit, at a dose of 100 nmol/site caused significant increases in skin vascular permeability in both mast cell-deficient (WBB6F1 W/W(v)) and wild-type (WBB6F1 +/+) mice, this response was significantly lower in mast cell-deficient mice than in the wild-type controls. Histamine also caused dose-related increases in skin vascular permeability in both wild-type and mast cell-deficient mice. Significant effects were observed at doses of 10 and 100 nmol/site, and no significant difference in skin vascular permeability was observed between mast cell-deficient and wild-type mice. However, histamine contents of dorsal skin in mast cell-deficient mice were significantly lower than in wild-type mice. In addition, the H(1) antagonists diphenhydramine and chlorpheniramine and the NK(1) antagonists, L-732,138 and L-733,060, were able to antagonize H(3) antagonist-induced skin vascular permeability. These results indicated that blockade of H(3) receptors by H(3) antagonists induce skin vascular permeability through mast cell-dependent mechanisms. In addition, histamine and, to a lesser extent substance P are involved in the reaction. |