PMID- 14741755 OWN - NLM STAT- MEDLINE DCOM- 20040503 LR - 20190901 IS - 0165-3806 (Print) IS - 0165-3806 (Linking) VI - 147 IP - 1-2 DP - 2003 Dec 30 TI - Altered cocaine-induced behavioral sensitization in adult mice exposed to cocaine in utero. PG - 97-105 AB - Behavioral sensitization induced by psychostimulants is characterized by increased locomotion and stereotypy and may reflect aspects of neuronal adaptations underlying drug addiction in humans. To study the developmental contributions to addictive behaviors, we measured behavioral responses in adult offspring to a cocaine sensitization paradigm following prenatal cocaine exposure. Pregnant Swiss-Webster (SW) mice were injected twice daily from embryonic days 8 to 17 (E8-E17, inclusive) with cocaine (20 or 40 mg/kg/day; COC20 and COC40, respectively), or saline vehicle (SAL and SPF40) subcutaneously (s.c.). A nutritional control group of dams were 'pair-fed' with COC40 dams (SPF40). P120 male offspring from each prenatal treatment group were assigned to a behavioral sensitization group and injected with cocaine (15 mg/kg) or saline intraperitoneally (i.p.) every other day for seven doses. Locomotor activity and stereotypy were measured during habituation, cocaine initiation, and following a cocaine challenge 21 days after the last initiation injection. As expected, animals demonstrated significantly more locomotion and stereotypic behavior following acute and recurrent injection of cocaine compared to saline-injected animals. However, for each prenatal treatment group, cocaine-sensitized animals showed unique temporal profiles for the increase in locomotor sensitization and stereotypy over the course of the sensitization protocol. Two features that distinguished the altered behavioral progression of prenatally cocaine-exposed animals (COC40) from control (SAL) animals included blunted augmentation of locomotion and enhanced patterns of stereotypic behavior. These findings provide evidence that the behavioral activating effects of cocaine in adult animals are altered following exposure to cocaine in utero. FAU - Crozatier, Claire AU - Crozatier C AD - INSERM U513, Neurobiology and Psychiatry, Faculty of Medicine, 94010 Creteil, France. FAU - Guerriero, Rejean M AU - Guerriero RM FAU - Mathieu, Flavie AU - Mathieu F FAU - Giros, Bruno AU - Giros B FAU - Nosten-Bertrand, Marika AU - Nosten-Bertrand M FAU - Kosofsky, Barry E AU - Kosofsky BE LA - eng GR - DA 00354/DA/NIDA NIH HHS/United States GR - DA08648/DA/NIDA NIH HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - Netherlands TA - Brain Res Dev Brain Res JT - Brain research. Developmental brain research JID - 8908639 RN - I5Y540LHVR (Cocaine) SB - IM MH - Animals MH - Behavior, Animal/*drug effects MH - Cocaine/adverse effects/*toxicity MH - Conditioning, Operant/drug effects MH - Female MH - Growth/drug effects MH - Habituation, Psychophysiologic/drug effects MH - Male MH - Mice MH - Motor Activity/*drug effects MH - Pregnancy MH - *Prenatal Exposure Delayed Effects MH - Stereotyped Behavior/drug effects MH - Substance Withdrawal Syndrome/psychology EDAT- 2004/01/27 05:00 MHDA- 2004/05/05 05:00 CRDT- 2004/01/27 05:00 PHST- 2004/01/27 05:00 [pubmed] PHST- 2004/05/05 05:00 [medline] PHST- 2004/01/27 05:00 [entrez] AID - S016538060300333X [pii] AID - 10.1016/j.devbrainres.2003.10.006 [doi] PST - ppublish SO - Brain Res Dev Brain Res. 2003 Dec 30;147(1-2):97-105. doi: 10.1016/j.devbrainres.2003.10.006.