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Pre‐Pro‐Somatostatin‐III May Have Cortistatin‐like Functions in Fish
Author(s) -
CANOSA LUIS FABIÁN,
PETER RICHARD ECTOR
Publication year - 2005
Publication title -
annals of the new york academy of sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.712
H-Index - 248
eISSN - 1749-6632
pISSN - 0077-8923
DOI - 10.1196/annals.1327.036
Subject(s) - somatostatin , preoptic area , cerebrum , thalamus , medicine , endocrinology , fish <actinopterygii> , biology , chemistry , neuroscience , hypothalamus , central nervous system , fishery
A bstract : This study analyzes daily changes in the expression of somatostatin precursors PSS‐I and PSS‐III (structurally related to cortistatin) in the goldfish brain. The results indicate that PSS‐I expression correlates with the light cycle only in optic tectum‐thalamus (OT‐Tha). PSS‐III expression correlates with the light cycle in telencephalon‐preoptic area (Tel‐POA) and OT‐Tha. In Tel‐POA, PSS‐III reaches a minimum level at the beginning of the active phase and a maximum level late in this phase. These results suggest that PSS‐I in OT‐Tha and PSS‐III in Tel‐POA and OT‐Tha could be involved in the control of the activity cycles in goldfish.