Arginine vasotocin (AVT) and isotocin (IT) in fish brain: Diurnal and seasonal variations

被引：58

作者：

Gozdowska, M ^{[1
]}

Kleszczynska, A ^{[1
]}

Sokolowska, E ^{[1
]}

Kulczykowska, E ^{[1
]}

机构：

[1] Polish Acad Sci, Inst Oceanol, Dept Genet & Marine Biotechnol, PL-81347 Gdynia, Poland

来源：

COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY B-BIOCHEMISTRY & MOLECULAR BIOLOGY | 2006年 / 143卷 / 03期

关键词：

arginine vasotocin; derivatization; fish; hormone; hypothalamus; HPLC; isotocin; neurohormone; neurohypophysis; rhythms;

D O I：

10.1016/j.cbpb.2005.12.004

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

An HPLC assay with solid-phase extraction and fluorescence derivatization was developed for measurement of arginine vasotocin (AVT) and isotocin (IT) in the neural tissues of fish. The efficiency and usefulness of the method have been verified in experiments by examination of peptides concentrations in brains of three fish species. The day-night changes in neuropeptides levels have been studied in brains of adult sea bream (Sparus aurata) and juvenile Atlantic salmon (Salmo salar). Seasonal fluctuations have been investigated in brains of three-spined sticklebacks (Gasterosteus aculeatus). The AVT and IT biosynthesis in brain seems to be controlled independently and probably each neuropeptide plays a different role in a circadian time-keeping system and an endocrine calendar in fish. (C) 2005 Elsevier Inc. All rights reserved.

引用

页码：330 / 334

页数：5

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