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We aimed at the further characterization of rats in which SERT gene silencing was achieved by hippocampal injection of a lentiviral vector, carrying three si‐RNA to block SERT mRNA at 66% of normal levels. Improved self‐control and reduced restlessness were already demonstrated in these rats. Present further studies consisted of male adult rats, bilaterally inoculated within the hippocampus; control...
Gambling disorder (GD) is a topical problem in developed countries and may be present in 1–3% of the general population. The pathophysiology of this disorder is largely unknown but it shares similarities to other behavioral addictions. Multiple neurotransmitter systems, including dopaminergic, serotonergic, noradrenergic, glutamatergic, and opioidergic, have been implicated in GD. Based on available...
Brain serotonin 7 (5‐HT7) receptors play an important functional role in learning and memory, in regulation of mood and motivation, and for circadian rhythms. Recently, we have studied the modulatory effects of a developmental exposure (under subchronic regimen) in rats with LP‐211, a brain‐penetrant and selective 5‐HT7 receptor agonist. We aimed at further deciphering long‐term sequelae into adulthood...
Interest is rising for animal modeling of impaired behavioral inhibition. Impulsivity and risk proneness, key symptoms of impulse‐control disorders, are classically measured by Intolerance to Delay (ID) and Probabilistic Delivery (PD) tasks, requiring choice between a “Small & Soon” or “Sure” (SS) versus a “Large & Late” or “Luck‐Linked” (LL or LLL, respectively) reinforcer. Several temporal...
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