title: Neurobehavioral Effects from Developmental Methamphetamine Exposure.
abstract: Intrauterine methamphetamine exposure adversely affects the neurofunctional profile of exposed children, leading to a variety of higher order cognitive deficits, such as decreased attention, reduced working-memory capability, behavioral dysregulation, and spatial memory impairments (Kiblawi et al. in J Dev Behav Pediatr 34:31-37, 2013; Piper et al. in Pharmacol Biochem Behav 98:432-439 2011; Roussotte et al. in Neuroimage 54:3067-3075, 2011; Twomey et al. in Am J Orthopsychiatry 83:64-72, 2013). In animal models of developmental methamphetamine, both neuroanatomical and behavioral outcomes critically depend on the timing of methamphetamine administration. Methamphetamine exposure during the third trimester human equivalent period of brain development results in well-defined and persistent wayfinding and spatial navigation deficits in rodents (Vorhees et al. in Neurotoxicol Teratol 27:117-134, 2005, Vorhees et al. in Int J Dev Neurosci 26:599-610, 2008; Vorhees et al. in Int J Dev Neurosci 27:289-298, 2009; Williams et al. in Psychopharmacology (Berl) 168:329-338, 2003b), whereas drug delivery during the first and second trimester equivalents produces no such effect (Acuff-Smith et al. in Neurotoxicol Teratol 18:199-215, 1996; Schutova et al. in Physiol Res 58:741-750, 2009a; Slamberova et al. in Naunyn Schmiedebergs Arch Pharmacol 380:109-114, 2009, Slamberova et al. in Physiol Res 63:S547-S558, 2014b). In this review, we examine the impact of developmental methamphetamine on emerging neural circuitry, neurotransmission, receptor changes, and behavioral outcomes in animal models. The review is organized by type of effects and timing of drug exposure (prenatal only, pre- and neonatal, and neonatal only). The findings elucidate functional patterns of interconnected brain structures (e.g., frontal cortex and striatum) and neurotransmitters (e.g., dopamine and serotonin) involved in methamphetamine-induced developmental neurotoxicity.
authors.affiliation: Division of Neurology, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave., R-1447, Cincinnati, OH, 45229-3039, USA. sarah.jablonski@cchmc.org.
authors.forename: Sarah A
authors.initials: SA
authors.lastname: Jablonski
authors.affiliation: Division of Neurology, Cincinnati Children's Hospital Medical Center and Department of Pediatrics, University of Cincinnati College of Medicine, 45229, Cincinnati, OH, USA.
authors.forename: Michael T
authors.initials: MT
authors.lastname: Williams
authors.affiliation: Division of Neurology, Cincinnati Children's Hospital Medical Center and Department of Pediatrics, University of Cincinnati College of Medicine, 3333 Burnet Ave., MLC 7044, 45229-3039, Cincinnati, OH, USA.
authors.forename: Charles V
authors.initials: CV
authors.lastname: Vorhees
mesh_terms: D000818:Animals; D001522:Behavior, Animal / Q000187:drug effects*; D001921:Brain / Q000187:drug effects*; D000697:Central Nervous System Stimulants / Q000633:toxicity*; D004195:Disease Models, Animal; D005260:Female; D008694:Methamphetamine / Q000633:toxicity*; D011247:Pregnancy; D011297:Prenatal Exposure Delayed Effects / Q000523:psychology
chemical_list: D000697:Central Nervous System Stimulants; D008694:Methamphetamine
keywords: Allocentric learning; Dopamine; Egocentric learning; Glutamate; Methamphetamine; Postnatal; Prenatal; Serotonin; Spatial learning