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Hydrobiological Journal
SJR: 0.227 SNIP: 0.901 CiteScore™: 0.5

ISSN Печать: 0018-8166
ISSN Онлайн: 1943-5991

Выпуски:
Том 56, 2020 Том 55, 2019 Том 54, 2018 Том 53, 2017 Том 52, 2016 Том 51, 2015 Том 50, 2014 Том 49, 2013 Том 48, 2012 Том 47, 2011 Том 46, 2010 Том 45, 2009 Том 44, 2008 Том 43, 2007 Том 42, 2006 Том 41, 2005 Том 40, 2004 Том 39, 2003 Том 38, 2002 Том 37, 2001 Том 36, 2000 Том 35, 1999 Том 34, 1998

Hydrobiological Journal

DOI: 10.1615/HydrobJ.v37.i3.60
11 pages

The Role of Brain g-Aminobutirate Shunt in Adaptaition of Fish to Extreme Environmental Factors

A. O. Zhydenko
Chernigiv State Pedagogical University, Chernigiv, Ukraine
V. V. Kryvopysha
Chernigov State Pedagogical University, Chernigov, Ukraine

Краткое описание

The authors studied the changes in contents of g-aminobutyric acid (GABA) and the intermediates involved in its forming pathway (shunt) in brains of pond carps during a year. An increased production of GABA and g-oxiaminobutyric acid (GOBA) promotes energy preservation in brain under unfavorable seasonal state offish organism (April). In NН3 toxicosis, an increased GOBA production (GABA transamination) supports the tolerance of central nervous system to that toxicant. After addition of Mg2+ to water medium with an enhanced NН3, glutamate, and GABA in brains; acetylcholinesterase activity was restored. These effects evidence a protective action of Mg2+ at stress states in fish.


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