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Early Adolescence is a Critical Period for the Maturation of Inhibitory Behavior.

Author(s): Reynolds LM, Yetnikoff L, Pokinko M, Wodzinski M, Epelbaum JG, Lambert LC, Cossette MP, Arvanitogiannis A, Flores C

Cereb Cortex. 2018 Oct 06;: Authors: Reynolds LM, Yetnikoff L, Pokinko M, Wodzinski M, Epelbaum JG, Lambert LC, Cossette MP, Arvanitogiannis A, Flores C

Article GUID: 30295713
Differential sensitivity to the acute and sensitizing behavioral effects of methylphenidate as a function of strain in adolescent and young adult rats.

Author(s): Yetnikoff L, Arvanitogiannis A

Behav Brain Funct. 2013 Oct 17;9:38 Authors: Yetnikoff L, Arvanitogiannis A

Article GUID: 24134881
Endocannabinoids promote cocaine-induced impulsivity and its rapid dopaminergic correlates.

Author(s): Hernandez G, Oleson EB, Gentry RN, Abbas Z, Bernstein DL, Arvanitogiannis A, Cheer JF

Biol Psychiatry. 2014 Mar 15;75(6):487-98 Authors: Hernandez G, Oleson EB, Gentry RN, Abbas Z, Bernstein DL, Arvanitogiannis A, Cheer JF

Article GUID: 24138924
Dampened Mesolimbic Dopamine Function and Signaling by Saturated but not Monounsaturated Dietary Lipids.

Author(s): Hryhorczuk C, Florea M, Rodaros D, Poirier I, Daneault C, Des Rosiers C, Arvanitogiannis A, Alquier T, Fulton S

Neuropsychopharmacology. 2016 Feb;41(3):811-21 Authors: Hryhorczuk C, Florea M, Rodaros D, Poirier I, Daneault C, Des Rosiers C, Arvanitogiannis A, Alquier T, Fulton S

Article GUID: 26171719
Non-Contingent Exposure to Amphetamine in Adolescence Recruits miR-218 to Regulate Dcc Expression in the VTA.

Author(s): Cuesta S, Restrepo-Lozano JM, Silvestrin S, Nouel D, Torres-Berrío A, Reynolds LM, Arvanitogiannis A, Flores C

Neuropsychopharmacology. 2018 03;43(4):900-911 Authors: Cuesta S, Restrepo-Lozano JM, Silvestrin S, Nouel D, Torres-Berrío A, Reynolds LM, Arvanitogiannis A, Flores C

Article GUID: 29154364
Adolescent Exposure to Methylphenidate Increases Impulsive Choice Later in Life.

Author(s): Abbas Z, Sweet A, Hernandez G, Arvanitogiannis A

Front Behav Neurosci. 2017;11:214 Authors: Abbas Z, Sweet A, Hernandez G, Arvanitogiannis A

Article GUID: 29163086
Title:Differential sensitivity to the acute and sensitizing behavioral effects of methylphenidate as a function of strain in adolescent and young adult rats.
Authors:Yetnikoff L,  Arvanitogiannis A
Link:https://www.ncbi.nlm.nih.gov/pubmed/24134881?dopt=Abstract
Category:Behav Brain Funct
PMID:24134881
Dept Affiliation: CSBN
1 Department of Psychology, Center for Studies in Behavioral Neurobiology, Concordia University, Montreal, Quebec, Canada. a.arvanitogiannis@concordia.ca.

Description:

Differential sensitivity to the acute and sensitizing behavioral effects of methylphenidate as a function of strain in adolescent and young adult rats.

Behav Brain Funct. 2013 Oct 17;9:38

Authors: Yetnikoff L, Arvanitogiannis A

Abstract

BACKGROUND: Behavioral effects of stimulant drugs are influenced by non-pharmacological factors, including genetic variability and age. We examined acute and sensitized locomotor effects of methylphenidate in adolescent and early adult male Sprague Dawley (SD), spontaneously hypertensive (SHR) and Wistar Kyoto (WKY) rats using a drug regimen that differentiates clearly between initial and enduring differences in drug responsiveness. We probed for strain and age differences in the sensitizing effects of methylphenidate using a cocaine challenge. Methylphenidate was administered to the rats in a non-home environment.

FINDINGS: Strain differences in sensitivity to single methylphenidate injections depend on age and change with continuing drug pretreatment. While SHR rats are more sensitive to methylphenidate relative to WKY regardless of age and pretreatment day, SHR rats become more sensitive to methylphenidate than SD rats towards the end of pretreatment during early adulthood. SD rats exhibit greater sensitivity to methylphenidate relative to the WKY group during adolescence, an effect that dissipates with continued drug pretreatment during adulthood. Remarkably, only SHR rats, regardless of age, exhibit methylphenidate-induced cross-sensitization to the behavioral effects of cocaine.

CONCLUSIONS: Our findings suggest that SHR rats are more vulnerable than other strains to methylphenidate-induced cross-sensitization to cocaine, at least when methylphenidate is administered in a non-home environment. Given that SHR rats are typically used to model features of attention deficit hyperactivity disorder, these findings may have important implications for the treatment of this disorder with methylphenidate.

PMID: 24134881 [PubMed - indexed for MEDLINE]