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Stimulants as specific inducers of dopamine-independent σ agonist self-administration in rats.

Hiranita T1, Soto PL, Tanda G, Kopajtic TA, Katz JL.
The Journal of pharmacology and experimental therapeutics.J Pharmacol Exp Ther.2013 Oct;347(1):20-9. doi: 10.1124/jpet.113.207522. Epub 2013 Aug 1.
A previous study showed that cocaine self-administration induced dopamine-independent reinforcing effects of σ agonists mediated by their selective actions at σ1 receptors (σ1Rs), which are intracellularly mobile chaperone proteins implicated in abuse-related effects of stimulants. The present st
PMID 23908387

Acute administration of dopaminergic drugs has differential effects on locomotion in larval zebrafish.

Irons TD1, Kelly PE, Hunter DL, Macphail RC, Padilla S.
Pharmacology, biochemistry, and behavior.Pharmacol Biochem Behav.2013 Feb;103(4):792-813. doi: 10.1016/j.pbb.2012.12.010. Epub 2012 Dec 28.
Altered dopaminergic signaling causes behavioral changes in mammals. In general, dopaminergic receptor agonists increase locomotor activity, while antagonists decrease locomotor activity. In order to determine if zebrafish (a model organism becoming popular in pharmacology and toxicology) respond si
PMID 23274813

[Role of DopR in the molecular mechanism of the dopamine control of juvenile hormone metabolism in female Drosophila].

Karpova EK, Bogomolova EV, Romonova IV, Gruntenko NE, Raushenbakh IIu.
Genetika.Genetika.2012 Aug;48(8):999-1002.
The effect of a decreased availability of the D1-like dopamine receptor (DopR) in Drosophila (caused by DopR antagonist added into food) on the juvenile hormone (JH) synthesis rate in young female D. melanogaster has been studied. The JH degradation rate and the alkaline phosphatase (ALP) and tyrosi
PMID 23035552