title: The Modulatory Effect of Ischemia and Reperfusion on Arginine Vasopressin-Induced Arterial Reactions.
abstract: Aim of the Study. The purpose of this study was to investigate the impact of ischemia and reperfusion on the resistance of arteries to AVP (arginine vasopressin), with a particular emphasis on the role of smooth muscle cells in the action of vasopressin receptors and the role of the cGMP-associated signalling pathway. Materials and Methods. Experiment was performed on the perfunded tail arteries from male Wistar rats. The constriction triggered by AVP after 30 minutes of ischemia and 30 and 90 minutes of reperfusion was analysed. Analogous experiments were also carried out in the presence of 8Br-cGMP. Results. Ischemia reduces and reperfusion increases in a time-dependent manner the arterial reaction to AVP. The presence of 8Br-cGMP causes a significant decrease of arterial reactivity under study conditions. Conclusions. Ischemia and reperfusion modulate arterial contraction triggered by AVP. The effect of 8Br-cGMP on reactions, induced by AVP after ischemia and reperfusion, indicates that signalling pathway associated with nitric oxide (NO) and cGMP regulates the tension of the vascular smooth muscle cells.
authors: Department of Pharmacology and Therapeutics, Collegium Medicum Nicolaus Copernicus University, Sklodowskiej-Curie Street 9, 85-094 Bydgoszcz, Poland.
authors: Katarzyna
authors: 0000-0001-9077-4488
authors: K
authors: Szadujkis-Szadurska
authors: Department of Pharmacology and Therapeutics, Collegium Medicum Nicolaus Copernicus University, Sklodowskiej-Curie Street 9, 85-094 Bydgoszcz, Poland.
authors: Bartosz
authors: B
authors: Malinowski
authors: Department of Pharmacology and Therapeutics, Collegium Medicum Nicolaus Copernicus University, Sklodowskiej-Curie Street 9, 85-094 Bydgoszcz, Poland.
authors: Małgorzata
authors: M
authors: Piotrowska
authors: Department of Pharmacology and Therapeutics, Collegium Medicum Nicolaus Copernicus University, Sklodowskiej-Curie Street 9, 85-094 Bydgoszcz, Poland.
authors: Grzegorz
authors: G
authors: Grześk
authors: Department of Pharmacology and Therapeutics, Collegium Medicum Nicolaus Copernicus University, Sklodowskiej-Curie Street 9, 85-094 Bydgoszcz, Poland.
authors: Michał
authors: 0000-0002-7222-0171
authors: M
authors: Wiciński
authors: Department of Pharmacology and Therapeutics, Collegium Medicum Nicolaus Copernicus University, Sklodowskiej-Curie Street 9, 85-094 Bydgoszcz, Poland.
authors: Marta
authors: M
authors: Gajdus
mesh_terms: D000818:Animals; D001127:Arginine Vasopressin / Q000494:pharmacology*; D001158:Arteries / Q000187:drug effects / Q000502:physiology; D008297:Male; D032389:Myocytes, Smooth Muscle / Q000166:cytology; D051381:Rats; D017208:Rats, Wistar; D015427:Reperfusion Injury / Q000503:physiopathology*; D013623:Tail / Q000098:blood supply; D014655:Vascular Resistance / Q000187:drug effects / Q000502:physiology*
chemical_list: D001127:Arginine Vasopressin