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- W2986889609 abstract "Background and Purpose Alcohol exposure in utero may lead to a wide range of long‐lasting morphological and behavioural deficiencies known as fetal alcohol spectrum disorders (FASD), associated with a higher risk of later developing neuropsychiatric disorders. However, little is known about the long‐term consequences of cocaine use and abuse in individuals with FASD. This study aimed to investigate the effects of maternal binge alcohol drinking during prenatal and postnatal periods on cocaine reward‐related behaviours in adult offspring. Experimental Approach Pregnant C57BL/6 female mice were exposed to an experimental protocol of binge alcohol consumption (drinking‐in‐the‐dark test) from gestation to weaning. Male offspring were subsequently left undisturbed until reaching adulthood and were tested for cocaine‐induced motivational responses (conditioned place preference, behavioural sensitization and operant self‐administration). Protein expression of dopamine‐ and glutamate‐related molecules was assessed following cocaine‐induced reinstatement. Key Results The results show that prenatal and postnatal alcohol exposure enhanced the preference for the cocaine‐paired chamber in the conditioned place preference test. Furthermore, early alcohol‐exposed mice displayed attenuated cocaine‐induced behavioural sensitization but also higher cocaine self‐administration. Furthermore, alterations in glutamatergic excitability (GluA1/GluA2 ratio) and ΔFosB expression were found in the prefrontal cortex and the striatum of alcohol‐exposed mice after cocaine‐primed reinstatement. Conclusion and Implications Our findings demonstrate that maternal binge‐like alcohol consumption during gestation and lactation alters sensitivity to the reinforcing effects of cocaine in adult offspring mice. Together, such data suggest that prenatal and postnatal alcohol exposure may underlie an enhanced susceptibility of alcohol‐exposed offspring to develop drug addiction later in adulthood." @default.
- W2986889609 created "2019-11-22" @default.
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- W2986889609 date "2020-01-23" @default.
- W2986889609 modified "2023-10-16" @default.
- W2986889609 title "Prenatal and postnatal alcohol exposure increases vulnerability to cocaine addiction in adult mice" @default.
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- W2986889609 doi "https://doi.org/10.1111/bph.14901" @default.
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