Temporal Variations in Gonadal and Body Fat Responses to Daily Injections of 5-Hydroxytryptophan (5-HTP) and Dihydroxyphenylalanine (DOPA) in the Gulf Killifish, Fundulus grandis

Authors

Arnil C. Emata, Louisiana State University
Albert H. Meier, Louisiana State University
Richard E. Spieler, Louisiana State UniversityFollow

Document Type

Article

Publication Date

1-1985

Publication Title

Journal of Experimental Zoology

ISSN

0022-104X

Volume

233

Issue/No.

1

First Page

29

Last Page

34

Abstract

Daily injections of dihydroxyphenylalanine (DOPA), a dopamine precursor, stimulate large increases in reproductive and body fat indices in gulf killifish, Fundulus grandis, when given 20 hours after daily injections of 5-hydroxytryptophan (5-HTP), a serotonin precursor. However, DOPA injections are inhibitory when given 8 hours after 5-HTP. The drug effects persist for at least 3 weeks following drug treatment indicating a possible resetting of an endogenous mechanism involved in seasonality.

Comments

©1985 Wiley-Liss Inc.

NSUWorks Citation

Arnil C. Emata, Albert H. Meier, and Richard E. Spieler. 1985. Temporal Variations in Gonadal and Body Fat Responses to Daily Injections of 5-Hydroxytryptophan (5-HTP) and Dihydroxyphenylalanine (DOPA) in the Gulf Killifish, Fundulus grandis .Journal of Experimental Zoology , (1) : 29 -34. https://nsuworks.nova.edu/occ_facarticles/189.

DOI

10.1002/jez.1402330106