Journal article
Somatolactin stimulates in vitro gonadal steroidogenesis in coho salmon, Oncorhynchus kisutch
General and comparative endocrinology, Vol.87(1), pp.1-5
1992
Handle:
https://hdl.handle.net/2376/101358
PMID: 1624088
Abstract
Somatolactin (SL), a newly discovered pituitary hormone of the teleost pars intermedia, is structurally similar to prolactin ans growth hormone. The function(s) of SL are not yet established, although evidence suggests that it may play a role in reproduction. Possible steroidogenic activity of coho salmon SL was tested and compared with gonadotropin I (GTH I) in incubations of ovarian follicles or testicular fragments. SL stimulated production of 11-ketotestosterone and testosterone by testicular fragments, and production of estradiol by ovarian follicles in a concentration-dependent manner. However, the steroidogenic activity of SL was considerably less than that of GTH I. These results suggest that SL may play a role in regulation of gonadal function in salmon.
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Details
- Title
- Somatolactin stimulates in vitro gonadal steroidogenesis in coho salmon, Oncorhynchus kisutch
- Creators
- Josep V Planas - School of Fisheries HF-15, University of Washington, Seattle, WA 98195 USAPenny Swanson - School of Fisheries HF-15, University of Washington, Seattle, WA 98195 USAMariann Rand-Weaver - Dept. Biology and Biochemistry, Brunel University, Uxbridge, Middlesex UB8 3PH, EnglandWalton W Dickhoff - School of Fisheries HF-15, University of Washington, Seattle, WA 98195 USA
- Publication Details
- General and comparative endocrinology, Vol.87(1), pp.1-5
- Academic Unit
- UNKNOWN
- Publisher
- Elsevier Inc
- Identifiers
- 99900546671201842
- Language
- English
- Resource Type
- Journal article