The alteration of gamma-aminobutyric acid and glutamate contents in the discrete brain of female tilapia during certain stages of gonadal cycle.
The alteration of gamma-aminobutyric acid (GABA) and glutamate (Glu) contents in the discrete brain of female tilapia during the certain stages of gonadal cycle was investigated. Both hypothalamic GABA and Glu showed a significantly higher content in the prespawning female than that in the recrudesced and regressed females, which there was no significant difference. In the different gonadal status of female, both telencephalic GABA and Glu showed a maximal content during the prespawning phase and a minimal content during the recrudesced phase. Neither GABA nor Glu content was altered with the gonadal phases in the optic lobe and cerebellum of female tilapia. These results indicate that the alteration of GABA and Glu contents in the hypothalamus and telencephalon, but neither in the optic lobe nor cerebellum, is consistent with the gonadal cycle.
Tsai
C
C
Department of Marine Resources, National Sun Yat-sen University, Taiwan 80424, Kaohsiung, Republic of China. cltsai@mail.snysu.edu.tw
Wang
L
L
D000818:Animals; D001921:Brain / Q000378:metabolism*; D002531:Cerebellum / Q000378:metabolism; D005260:Female; D018698:Glutamic Acid / Q000378:metabolism*; D007031:Hypothalamus / Q000378:metabolism; D010053:Ovary / Q000166:cytology / Q000378:metabolism*; D012098:Reproduction / Q000502:physiology; D003336:Tectum Mesencephali / Q000378:metabolism; D013687:Telencephalon / Q000378:metabolism; D017210:Tilapia / Q000378:metabolism*; D005680:gamma-Aminobutyric Acid / Q000378:metabolism*
D018698:Glutamic Acid; D005680:gamma-Aminobutyric Acid