Increased Compulsivity in Adulthood after Early Adolescence Immune Activation: Preclinical Evidence
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Mora Parada, Santiago; Martín González, Elena; Prados Pardo, Ángeles; Flores Cubos, Pilar; Moreno Montoya, MargaritaFecha
2021-04-28Resumen
Immune activation during early developmental stages has been proposed as a contributing factor in the pathogenesis of neuropsychiatric conditions such as obsessive-compulsive disorder, attention-deficit/hyperactivity disorder, and autism in both human and animal studies. However, its relationship with the vulnerability to inhibitory control deficit, which is a shared feature among those conditions, remains unclear. The present work studied whether postnatal immune activation during early adolescence, combined with exposure to early-life adverse events, could lead to adult vulnerability to impulsive and/or compulsive behaviors. Male Wistar rats were exposed to lipopolysaccharide (LPS) in early adolescence at postnatal day 26 (PND26). During peripuberal period, half of the animals were exposed to a mild stress protocol. In adulthood, behavioral assessment was performed with the aid of the sustained attentional 5-choice serial reaction time (5-CSRT) task, schedule-induced polydipsia (SIP)...
Palabra/s clave
inhibitory control
compulsivity
immune activation
behavior
preclinical models
early life adversity