Medizinische Universität Graz - Research portal
Selected Publication:
Spitaler, MM; Hammer, A; Malli, R; Graier, WF.
Functional analysis of histamine receptor subtypes involved in endothelium-mediated relaxation of the human uterine artery.
Clin Exp Pharmacol Physiol. 2002; 29(8):711-716
Doi: 10.1046%2Fj.1440-1681.2002.03704.x
Web of Science
PubMed
FullText
FullText_MUG
Google Scholar
- Leading authors Med Uni Graz
- Graier Wolfgang
- Co-authors Med Uni Graz
- Hammer Astrid
- Malli Roland
- Altmetrics:
- Dimensions Citations:
- Plum Analytics:
- Scite (citation analytics):
- Abstract:
- 1. This work was designed to introduce human uterine arteries as a new model for cardiovascular research. Advantages of this model include considerable availability of tissue because of the appearance of uterus myomatosus in post-menopausal women who undergo surgery and the chance to work on dysfunctional and healthy vessels. 2. Histamine evoked relaxation of the uterine artery that was prevented by removal of the endothelium or by the presence of N(G)-nitro-L-arginine. 3. Receptor antagonists for histamine H(1) (mepyramine) and H(2) (ranitidine) receptors increased the EC(50) of histamine by 112- and 67-fold, respectively. 4. Remarkably, isolated uterine arteries could be stored in incubators for 5 days without any change in contractility to phenylephrine and endothelium-dependent relaxation to acetylcholine and histamine. 5. Endothelial cells could be isolated and cultured in high purity, as demonstrated by histochemical staining of factor VIII, low CD45-RO for macrophages and no smooth muscle alpha-actin. In addition, cultured human uterine artery endothelial cells could be used for single cell Ca(2+) measurements. 6. In agreement with our findings in the intact vessel, histamine-initiated elevation of the intracellular free Ca(2+) concentration was reduced in the presence of mepyramine and ranitidine by 59 and 55%, respectively. 7. These data indicate that, in the human uterine artery, H(1) and H(2) receptors are involved in histamine-induced endothelium-dependent relaxation that is mediated by nitric oxide. 8. In addition, this vessel can be stored for possible virus-mediated gene expression for 5 days without any loss of reagibility. 9. Finally, endothelial cells can be isolated and cultured from the human uterine artery and maintain their reactivity to histamine in culture.
- Find related publications in this database (using NLM MeSH Indexing)
- Arteries - cytology
- Calcium Signaling - drug effects
- Cells, Cultured - drug effects
- Endothelium, Vascular - cytology
- Female - cytology
- Humans - cytology
- Middle Aged - cytology
- Receptors, Histamine - classification
- Uterus - blood supply
- Vasodilation - drug effects
- Find related publications in this database (Keywords)
- Ca2+
- endothelium-derived relaxing factor
- histamine receptors
- human artery