Contractile function of the smooth-muscle wall and its adrenergic regulation in megaureter
| Autor: | I. V. Kazanskaya, I. S. Mudraya, Z. R. Sabirzyanova, V. I. Kirpatovskii |
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| Rok vydání: | 2005 |
| Předmět: |
Vesico-Ureteral Reflux
medicine.medical_specialty Ureterocele Megaureter Chemistry Reflux Adrenergic Stimulation Muscle Smooth General Medicine urologic and male genital diseases medicine.disease General Biochemistry Genetics and Molecular Biology Tonic (physiology) Receptors Adrenergic Norepinephrine Endocrinology Smooth muscle Internal medicine medicine Humans Ureter Child Muscle Contraction Ureteral Obstruction |
| Zdroj: | Bulletin of experimental biology and medicine. 138(3) |
| ISSN: | 0007-4888 |
| Popis: | We demonstrated disordered contractile capacity of megaureters formed against the background of reflux, organic or functional obstruction. The rhythmic and tonic contractions were suppressed in the megaureters with organic obstruction in comparison with megaureters caused by reflux. Norepinephrine stimulation induced pronounced pressor responses in obstructive megaureters. The state of the smooth-muscle walls of megaureters with functional obstruction was characterized by high tone, weak phase contractions, and increased capacity to pressor tonic reactions induced by norepinephrine. |
| Databáze: | OpenAIRE |
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