2006
Enhanced Sensitivity to the Euphoric Effects of Alcohol in Schizophrenia
D'Souza DC, Gil RB, Madonick S, Perry EB, Forselius-Bielen K, Braley G, Donahue L, Tellioglu T, Zimolo Z, Gueorguieva R, Krystal JH. Enhanced Sensitivity to the Euphoric Effects of Alcohol in Schizophrenia. Neuropsychopharmacology 2006, 31: 2767-2775. PMID: 16985503, DOI: 10.1038/sj.npp.1301207.Peer-Reviewed Original ResearchConceptsEffects of alcoholHealthy subjectsBlood alcohol levelsPositive psychotic symptomsSmall transient increaseSelf-medication hypothesisPerceptual alterationsAlcohol administrationMotor functionAlcohol dosesElevated riskPsychotic symptomsLifetime exposureSchizophrenia patientsSchizophrenia symptomsEuphoric effectsNegative symptomsAlcohol levelsAlcohol useStimulatory effectSubjective effectsTransient increaseSchizophreniaStimulatory responseAlcohol responses
2001
Attenuation of Ketamine Effects by Nimodipine Pretreatment in Recovering Ethanol Dependent Men: Psychopharmacologic Implications of the Interaction of NMDA and L-Type Calcium Channel Antagonists
Krupitsky E, Burakov A, Romanova T, Grinenko N, Grinenko A, Fletcher J, Petrakis I, Krystal J. Attenuation of Ketamine Effects by Nimodipine Pretreatment in Recovering Ethanol Dependent Men: Psychopharmacologic Implications of the Interaction of NMDA and L-Type Calcium Channel Antagonists. Neuropsychopharmacology 2001, 25: 936-947. PMID: 11750186, DOI: 10.1016/s0893-133x(01)00346-3.Peer-Reviewed Original ResearchConceptsVoltage-sensitive calcium channelsL-type voltage-sensitive calcium channelsKetamine effectsStimulant effectsCalcium channelsDouble-blind placebo-controlled studyN-methyl-D-aspartate (NMDA) glutamate receptorsL-type calcium channel antagonistL-type VSCC antagonistBehavioral effectsTransient behavioral effectsPlacebo-controlled studyCalcium channel antagonistsImproved memory functionInteraction of NMDAAspects of schizophreniaNimodipine pretreatmentVSCC antagonistsVerbal fluency impairmentPatient groupKetamine responseChannel antagonistsNMDA antagonistsNMDA receptorsEthanol intoxication
1998
Dose-Related Ethanol-like Effects of the NMDA Antagonist, Ketamine, in Recently Detoxified Alcoholics
Krystal JH, Petrakis IL, Webb E, Cooney NL, Karper LP, Namanworth S, Stetson P, Trevisan LA, Charney DS. Dose-Related Ethanol-like Effects of the NMDA Antagonist, Ketamine, in Recently Detoxified Alcoholics. JAMA Psychiatry 1998, 55: 354-360. PMID: 9554431, DOI: 10.1001/archpsyc.55.4.354.Peer-Reviewed Original Research
1997
Effect of alpha-methyl-para-tyrosine on response to cocaine challenge
Stine S, Krystal J, Petrakis I, Jatlow P, Heninger G, Kosten T, Chamey D. Effect of alpha-methyl-para-tyrosine on response to cocaine challenge. Biological Psychiatry 1997, 42: 181-190. PMID: 9232210, DOI: 10.1016/s0006-3223(96)00331-9.Peer-Reviewed Original ResearchConceptsDopamine metabolite homovanillic acidCocaine-induced euphoriaNorepinephrine metabolite 3Placebo-controlled studyBlood pressure responseMetabolite homovanillic acidReduced plasma levelsTyrosine hydroxylase inhibitorSerum cocaine levelsTuberoinfundibular dopamine systemAMPT pretreatmentAcute reductionIntranasal administrationPara-tyrosinePlasma levelsProlactin levelsCocaine challengeHomovanillic acidCatecholamine synthesisHeart rateHydroxylase inhibitorAlpha-methylDopamine systemCocaine levelsTherapeutic potential