SALMON GNRH SYNTHESIS IN THE PREOPTIC AREA AND THE VENTRAL TELENCEPHALON IS ACTIVATED DURING GONADAL MATURATION IN FEMALE MASU SALMON

被引：33

作者：

AMANO, M

HYODO, S

KITAMURA, S

IKUTA, K

SUZUKI, Y

URANO, A

AIDA, K

机构：

[1] UNIV TOKYO,FAC AGR,DEPT FISHERIES,TOKYO 113,JAPAN

[2] UNIV TOKYO,COLL ARTS & SCI,DEPT BIOL,TOKYO 153,JAPAN

[3] HOKKAIDO UNIV,DIV BIOL SCI,SAPPORO,HOKKAIDO 060,JAPAN

[4] NATL RES INST AQUACULTURE,NIKKO,TOCHIGI,JAPAN

来源：

GENERAL AND COMPARATIVE ENDOCRINOLOGY | 1995年 / 99卷 / 01期

关键词：

D O I：

10.1006/gcen.1995.1079

中图分类号：

R5 [内科学];

学科分类号：

1002 ; 100201 ;

摘要：

Changes in salmon gonadotropin-releasing hormone (sGnRH) synthetic activity in the brain during gonadal maturation were examined by in situ hybridization in 2-year-old female masu salmon, Oncorhynchus masou. During gonadal maturation, the numbers of neurons expressing sGnRH mRNA increased in the preoptic area and the ventral telencephalon, but not in the olfactory bulbs and the terminal nerve ganglion. The numbers of silver grains per neuron also increased in the preoptic area and the ventral telencephalon. These results indicate that sGnRH has multiple physiological functions according to the location of the neurons in the brain. neurons in the preoptic area and the ventral telencephalon are involved in gonadal maturation possibly by stimulating gonadotropin synthesis and release, whereas neurons in the olfactory bulbs and the terminal nerve ganglion may have different roles. (C) 1995 Academic Press, Inc.

引用

页码：13 / 21

页数：9

共 49 条

[1] ISOLATION OF THE GENE AND HYPOTHALAMIC CDNA FOR THE COMMON PRECURSOR OF GONADOTROPIN-RELEASING-HORMONE AND PROLACTIN RELEASE-INHIBITING FACTOR IN HUMAN AND RAT [J].