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Medicine and Health Sciences

Thomas Jefferson University

2008

Male

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Trk: A Neuromodulator Of Age-Specific Behavioral And Neurochemical Responses To Cocaine In Mice., Michelle Niculescu, Shane A Perrine, Jonathan S Miller, Michelle E Ehrlich, Ellen M Unterwald Jan 2008

Trk: A Neuromodulator Of Age-Specific Behavioral And Neurochemical Responses To Cocaine In Mice., Michelle Niculescu, Shane A Perrine, Jonathan S Miller, Michelle E Ehrlich, Ellen M Unterwald

Farber Institute for Neuroscience Faculty Papers

Responses to psychostimulants vary with age, but the molecular etiologies of these differences are largely unknown. The goal of the present research was to identify age-specific behavioral and molecular adaptations to cocaine and to elucidate the mechanisms involved therein. Postweanling, periadolescent, and adult male CD-1 mice were exposed to cocaine (20 mg/kg) for 7 d. The rewarding effects of cocaine were assessed, as were the response to a Trk antagonist and the regulation of dopamine and cAMP-regulated phosphoprotein, 32 kDa (DARPP-32). Cocaine was rewarding in both periadolescent and adult mice using a conditioned place preference procedure. In contrast, postweanling mice …


Sevoflurane Enhances Ethanol-Induced Cardiac Preconditioning Through Modulation Of Protein Kinase C, Mitochondrial Katp Channels, And Nitric Oxide Synthase, In Guinea Pig Hearts., Kazuhiro Kaneda, Masami Miyamae, Shingo Sugioka, Chika Okusa, Yoshitaka Inamura, Naochika Domae, Junichiro Kotani, Vincent M. Figueredo Jan 2008

Sevoflurane Enhances Ethanol-Induced Cardiac Preconditioning Through Modulation Of Protein Kinase C, Mitochondrial Katp Channels, And Nitric Oxide Synthase, In Guinea Pig Hearts., Kazuhiro Kaneda, Masami Miyamae, Shingo Sugioka, Chika Okusa, Yoshitaka Inamura, Naochika Domae, Junichiro Kotani, Vincent M. Figueredo

Division of Cardiology Faculty Papers

BACKGROUND: Volatile anesthetics and regular ethanol consumption induce cardioprotection mimicking ischemic preconditioning. We investigated whether sevoflurane enhances ethanol preconditioning and whether inhibition of protein kinase C (PKC) and mitochondrial K(ATP) channels attenuated this enhanced cardioprotection. The effects of regular ethanol consumption on expression of inducible (iNOS) and endothelial (eNOS) nitric oxide synthase were determined. METHODS: Isolated perfused guinea pig hearts underwent 30-min global ischemia and 120-min reperfusion (Control: CTL). The ethanol group (EtOH) received 2.5% ethanol in their drinking water for 6 wk. Anesthetic preconditioning was elicited by 10-min exposure to sevoflurane (1 minimum alveolar anesthetic concentration; 2%) in ethanol …