Sebert P, Le Bras Y, Barthelemy L, Peyraud C
Aviat Space Environ Med. 1984 Oct;55(10):931-4.
Catecholamines (CA) are involved in many adaptative mechanisms of an organism to its environment. In fish, pressure is an environmental factor able to modify these mechanisms of adaptation, and some of the physiological perturbations observed under pressure can be compared to CA unloading. Moreover, the metabolic rate, and probably the CA metabolism of fish, are modified by the ambient temperature. This study has been conducted to measure tissue (brain and heart) CA contents (dopamine, norepinephrine, epinephrine) of eels acclimatized for 15 d at two temperatures, Tw, (15 degrees C or 25 degrees C). The measurements have been made either at atmospheric pressure (1 ATA) or after 60 min at 101 ATA of hydrostatic pressure "per se." The results show that 1) at a given Tw, pressure has no significant effect on tissue CA contents; and 2) there seems to exist a pressure-temperature antagonism concerning dopamine and epinephrine in the brain. It is suggested that this antagonism acts on enzymatic systems involved in the metabolism of these two amines.
儿茶酚胺（CA）参与生物体对其环境的许多适应性机制。在鱼类中，压力是一种能够改变这些适应机制的环境因素，在压力下观察到的一些生理紊乱可与CA卸载相比较。此外，鱼类的代谢率以及可能的CA代谢会受到环境温度的影响。本研究旨在测量在两种温度（Tw，15℃或25℃）下适应15天的鳗鱼的组织（脑和心脏）CA含量（多巴胺、去甲肾上腺素、肾上腺素）。测量是在大气压（1ATA）下进行，或者在101ATA静水压力“本身”作用60分钟后进行。结果表明：1）在给定的Tw下，压力对组织CA含量没有显著影响；2）在大脑中，关于多巴胺和肾上腺素似乎存在压力 - 温度拮抗作用。有人认为这种拮抗作用作用于参与这两种胺代谢的酶系统。
