Effects of cyclic and constant hydrostatic pressure on norepinephrine and epinephrine levels in the brain of flounder
Abstract:The effects of cyclic and constant hydrostatic pressure on the norepinephrine and epinephrine content in discrete regions of the brain of European flounder Platichthys flesus were studied. After a 14 day exposure to cyclic hydrostatic pressure with a tidal period of 12·4 h and with a maximum peak of 800 kPa (range 200–800 kPa of absolute hydrostatic pressure), fish showed a highly significant decrease in norepinephrine content when compared to control animals held at constant atmospheric pressure. No changes were detected in fish submitted to a constant hydrostatic pressure of 800 kPa.
Document Type: Research Article
Affiliations: 1: CIIMAR-Center for Marine and Environmental Research, Rua dos Bragas, 289, 4050-123 Oporto, Portugal, 2: Institute of Pharmacology and Therapeutics, Faculty of Medicine, 4200-319 Oporto, Portugal
Publication date: April 1, 2006