The influence of doxazosin, an alpha1-adrenergic receptor antagonist on the urinary bladder contractility in pigs

• Autorzy: Markiewicz W. , Jasielska A. , Barski D. , Janiuk J. , Bossowska A. , Jaroszewski J. J.
• Języki publikacji: EN

Abstrakty

EN

In the present study influence of doxazosin on the porcine urinary bladder contractility has been examined. Immature pigs were treated for 30 days with: a) doxazosin (n = 5) per os at a dose of 0.1 mg/kg b.w. or b) placebo (n = 5; control group). Thereafter, animals were sacrificed and urinary bladder strips from the trigone were suspended in organ baths. The tension of the smooth musce was measured before and after exposition to acetylocholine (ACh; 10⁻⁵ - 10⁻³ M), norepinephrine (NE; 10⁻⁹ - 10⁻⁷ M) and 5-hydroxytryptamine (5-HT; 10⁻⁷ - 10⁻⁵ M). Both the ACh and 5-HT at the highest doses significantly increased the contractility in each group, but this response was weaker in doxazosin-treated animals. NE caused relaxation in both groups, but the effect was weaker in doxazosine-treated group. The results of our study have shown that long-term administration of doxazosin caused a desensitization of the detrusor smooth muscle for in vitro applied mediators of the autonomic nervous systems.

• Wydawca: -
• Czasopismo: Polish Journal of Veterinary Sciences
• Rocznik: 2014
• Tom: 17
• Numer: 3
• Opis fizyczny: p.527-529,fig.,ref.

Twórcy

autor

Markiewicz W.

• Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 13, 10-719 Olsztyn, Poland

autor

Jasielska A.

• Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 13, 10-719 Olsztyn, Poland

autor

Barski D.

• Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 13, 10-719 Olsztyn, Poland

autor

Janiuk J.

• Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 13, 10-719 Olsztyn, Poland

autor

Bossowska A.

• Department of Human Physiology, Faculty of Medical Sciences, University of Warmia and Mazury, Warszawska 30, 10-082 Olsztyn, Poland

autor

Jaroszewski J. J.

• Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Oczapowskiego 13, 10-719 Olsztyn, Poland

Bibliografia

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Identyfikatory

DOI

10.2478/pjvs-2014-0078