INVESTIGADORES
FERNANDINO Juan Ignacio
artículos
Título:
Sex Hormone Binding Globuling during an annual reproductive cycle in the hepatopancreas and ovary of pejerrey (Odontesthes bonariensis)
Autor/es:
GONZALEZ, A.; FERNANDINO, J.I.; ELISIO, M.; CHALDE, T.; MIRANDA, L.A.; HAMMOND, G.L.; SOMOZA, G.M.
Revista:
GENERAL AND COMPARATIVE ENDOCRINOLOGY
Editorial:
ACADEMIC PRESS INC ELSEVIER SCIENCE
Referencias:
Lugar: Amsterdam; Año: 2019 vol. 272 p. 52 - 56
ISSN:
0016-6480
Resumen:
In the present study, we determined the hepatopancratic shbg transcript abundance and ovarian immunoreactive Shbg (ir-Shbg) localization in pejerrey females at different gonadal stages during an annual ovarian cycle. In the hepatopancreas, shbg expression remains was constant in pre-vitellogenic stages, decreased at final vitellogenesis to increase again in final maturation and atretic stages to previous levels at post-vitellogenic stages. Related to this, also we found a negative significant relation between sex steroid and shbg expression. On the other hand, in the ovary we found ir-Shbg inside of cortical alveoli, from previtellogenic stages to final maturation. This localization of Shbg in a teleost fish ovary suggests a new role for Shbg in oocytes, that may also extend the oocyte fertilization/development process.