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Effect of 12 hr temporal relation of serotonin and dopamine precursor drugs (5-HTP and L-DOPA) on photosexual responses of immature Japanese quail.
Indian J Exp Biol. 1991 Apr; 29(4):342-5.IJ

Abstract

To study the interaction of photoperiod and circadian neurotransmitter activity, L-DOPA L-dihydroxyphenylalanine, dopamine precursor) was administered daily, 12 hr after 5-HTP (5-hydroxy tryptophan, serotonin precursor) in sexually immature Japanese quail, raised under short photoperiod (LD8:16) since hatching. The 12 hr treatment of 5-HTP and L-DOPA was given under continuous condition of light for 11 days. After treatment the quail were transferred to intermediate day length (LD 13.5:10.5). The cloacal gland size of drug treated group increased significantly in comparison to control. The quail were then transferred to short photoperiod (LD 8:16). The cloacal gland size of both the groups started decreasing gradually but the rate was significantly low in drug treated quail in comparison to control. The results indicate that the endogenous mechanism controlling seasonality may be reset by drugs that influence serotonergic and dopaminergic activity. The 12 hr relation between the two drugs is stimulatory for gonadal growth under intermediate day length and retards the rate of regression when transferred to short days.

Authors+Show Affiliations

Department of Zoology, Banaras Hindu University, Varanasi, India.No affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

1874551

Citation

Chaturvedi, C M., et al. "Effect of 12 Hr Temporal Relation of Serotonin and Dopamine Precursor Drugs (5-HTP and L-DOPA) On Photosexual Responses of Immature Japanese Quail." Indian Journal of Experimental Biology, vol. 29, no. 4, 1991, pp. 342-5.
Chaturvedi CM, Meier AH, Bhatt R. Effect of 12 hr temporal relation of serotonin and dopamine precursor drugs (5-HTP and L-DOPA) on photosexual responses of immature Japanese quail. Indian J Exp Biol. 1991;29(4):342-5.
Chaturvedi, C. M., Meier, A. H., & Bhatt, R. (1991). Effect of 12 hr temporal relation of serotonin and dopamine precursor drugs (5-HTP and L-DOPA) on photosexual responses of immature Japanese quail. Indian Journal of Experimental Biology, 29(4), 342-5.
Chaturvedi CM, Meier AH, Bhatt R. Effect of 12 Hr Temporal Relation of Serotonin and Dopamine Precursor Drugs (5-HTP and L-DOPA) On Photosexual Responses of Immature Japanese Quail. Indian J Exp Biol. 1991;29(4):342-5. PubMed PMID: 1874551.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effect of 12 hr temporal relation of serotonin and dopamine precursor drugs (5-HTP and L-DOPA) on photosexual responses of immature Japanese quail. AU - Chaturvedi,C M, AU - Meier,A H, AU - Bhatt,R, PY - 1991/4/1/pubmed PY - 1991/4/1/medline PY - 1991/4/1/entrez SP - 342 EP - 5 JF - Indian journal of experimental biology JO - Indian J. Exp. Biol. VL - 29 IS - 4 N2 - To study the interaction of photoperiod and circadian neurotransmitter activity, L-DOPA L-dihydroxyphenylalanine, dopamine precursor) was administered daily, 12 hr after 5-HTP (5-hydroxy tryptophan, serotonin precursor) in sexually immature Japanese quail, raised under short photoperiod (LD8:16) since hatching. The 12 hr treatment of 5-HTP and L-DOPA was given under continuous condition of light for 11 days. After treatment the quail were transferred to intermediate day length (LD 13.5:10.5). The cloacal gland size of drug treated group increased significantly in comparison to control. The quail were then transferred to short photoperiod (LD 8:16). The cloacal gland size of both the groups started decreasing gradually but the rate was significantly low in drug treated quail in comparison to control. The results indicate that the endogenous mechanism controlling seasonality may be reset by drugs that influence serotonergic and dopaminergic activity. The 12 hr relation between the two drugs is stimulatory for gonadal growth under intermediate day length and retards the rate of regression when transferred to short days. SN - 0019-5189 UR - https://www.unboundmedicine.com/medline/citation/1874551/Effect_of_12_hr_temporal_relation_of_serotonin_and_dopamine_precursor_drugs__5_HTP_and_L_DOPA__on_photosexual_responses_of_immature_Japanese_quail_ L2 - https://www.lens.org/lens/search?q=citation_id:1874551 DB - PRIME DP - Unbound Medicine ER -