Browse Items · NEOMED Bibliography Database

Rats become acutely tolerant to cathine after amphetamine or cathinone administration.

The drug discrimination paradigm was used to evaluate in rats the ability of the discriminate response to either 0.8 mg/kg d-amphetamine or 0.8 mg/kg l-cathinone to generalize to 2.4-6.0 mg/kg of the active cathinone metabolite d-norpseudoephedrine,…

Tags: 1990, Alkaloids/*pharmacology, Amphetamine/*pharmacology, Animals, Antipsychotic Agents/pharmacology, Discrimination (Psychology)/drug effects, Dose-Response Relationship, Drug, Drug Tolerance, Inbred Strains, Male, Phenylpropanolamine/*pharmacology, Psychopharmacology, Psychotropic Drugs/*pharmacology, Rats, Schechter M D, Thiazepines/pharmacology

Serotonergic-dopaminergic mediation of 3,4-methylenedioxymethamphetamine (MDMA, "ecstasy").

A series of three experiments were conducted to investigate the possible serotonergic and dopaminergic mediation of the discriminative stimulus properties of the "designer" drug MDMA. In Experiment 1, rats trained to discriminate 1.5 mg/kg (+/-)-MDMA…

Stability of the stimulus properties of drugs over time.

Three separate groups of rats were trained to discriminate the stimulus effects of either 600 mg/kg ethanol (n = 5), 0.8 mg/kg d-amphetamine (n = 8) or 1.0 mg/kg

Tags: *Discrimination (Psychology), 1989, Animals, Boja J W, Dextroamphetamine/*pharmacology, Dose-Response Relationship, Drug, Drug Tolerance, Ethanol/*pharmacology, Inbred Strains, Pharmacology, biochemistry, and behavior, Piperazines/*pharmacology, Rats, Schechter M D, Signs S A

Temporal parameters of cathinone, amphetamine and cocaine.

Rats were trained to discriminate intraperitoneally administered 0.8 mg/kg

Tags: 1989, Alkaloids/*pharmacology, Amphetamines/*pharmacology, Animals, Cocaine/*pharmacology, Conditioning, Discrimination (Psychology)/*drug effects, Inbred Strains, Male, Operant/*drug effects, Pharmacology, biochemistry, and behavior, Rats, Schechter M D, Task Performance and Analysis, Time Factors

Temporal differences in behavioral effect of fenfluramine and norfenfluramine.

Ten male rats were trained to discriminate the anorectic drug d,l-fenfluramine (2.0 mg/kg intraperitoneally administered) from its vehicle using a food-reinforced (fixed-ratio 10 schedule) two-lever operant task. Once learned, the fenfluramine…

Tags: 1990, Animal/*drug effects, Animals, Behavior, Discrimination Learning/*drug effects, Dose-Response Relationship, Drug, Fenfluramine/*analogs & derivatives/*pharmacology, Inbred Strains, Injections, Intraperitoneal, Male, Norfenfluramine/*pharmacology, Pharmacology, biochemistry, and behavior, Rats, Schechter M D, Stereoisomerism

Tetrahydro-beta-carboline may produce its stimulus effects via 5HT1B receptors.

To further clarify the role of 5-hydroxytryptamine (5HT) in the behavioral effects of tetrahydro-beta-carboline, male rats were trained to discriminate either 20 mg/kg THBC from its vehicle (n = 10) or 2.0 mg/kg fenfluramine from saline (n = 5). THBC…

Tags: 1987, Animals, Carbolines/*pharmacology, Discrimination Learning/drug effects, Inbred Strains, Male, Metergoline/pharmacology, Pharmacology, biochemistry, and behavior, Piperazines/pharmacology, Rats, Receptors, Schechter M D, Serotonin Antagonists/pharmacology, Serotonin/*metabolism

Time-dependent effect of ethanol upon discrimination behavior.

The discriminative stimulus properties produced by ethanol were employed to demonstrate differences in discriminative performance over time in rats trained at different postinjection times. Thus, one group of rats was trained to discriminate between…

Tags: 1989, Alcohol (Fayetteville, N.Y.), Animals, Discrimination (Psychology)/*drug effects, Dose-Response Relationship, Drug, Ethanol/*pharmacology, Inbred Strains, Male, Rats, Schechter M D, Time Factors

The role of dopamine and serotonin receptors in the mediation of the ethanol interoceptive cue.

The drug discrimination paradigm was used to evaluate the contribution of dopamine or serotonin receptors in the mediation of the stimulus properties of ethanol. Briefly, rats were trained to discriminate between ethanol (600 mg/kg, IP) and water…

Tags: 1988, Animals, Conditioning, Cues, Discrimination (Psychology)/*physiology, Dopamine/drug effects/*physiology, Dose-Response Relationship, Drug, Ethanol/*pharmacology, Inbred Strains, Male, Operant/physiology, Pharmacology, biochemistry, and behavior, Rats, Receptors, Schechter M D, Serotonin/drug effects/*physiology, Signs S A

Acute and subchronic effects of methylenedioxymethamphetamine [(+/-)MDMA] on locomotion and serotonin syndrome behavior in the rat.

Specific behaviors comprising the serotonin syndrome (low body posture, forepaw treading, headweaving) and the autonomic signs of piloerection and salivation were determined and analyzed with locomotor activity in response to MDMA at three doses…

A comparative analysis of monoaminergic involvement in the spinal antinociceptive action of DAMPGO and DPDPE.

The antinociceptive properties of intrathecally (i.t.) administered [D-Ala2,

Projections from the medial agranular cortex to brain stem visuomotor centers in rats.

Projections from medial agranular cortex to brain stem in rat were determined by use of the anterograde tracers Phaseolus vulgaris leucoagglutinin, or wheat germ agglutinin conjugated horseradish peroxidase. Axonal trajectories were also followed by…

Tags: 1990, Animals, Brain Stem/*cytology, Cerebral Cortex/*cytology, Experimental brain research, Female, Horseradish Peroxidase, Immunohistochemistry, Inbred Strains, Male, Newman D B, Phytohemagglutinins, Rats, Stuesse S L, Visual Pathways/*anatomy & histology, Wheat Germ Agglutinin-Horseradish Peroxidase Conjugate, Wheat Germ Agglutinins

The development of long-term potentiation in hippocampus and neocortex.

The development of long-term potentiation (LTP), an enduring alteration in synaptic efficacy following afferent activation, was examined in CA1 hippocampus and primary visual cortex of rat. Both regions show little LTP prior to postnatal day 5,…

Innervation of regenerated spindles in muscle grafts of the rat.

Features of the nerve supply and the encapsulated fibers of muscle spindles were assessed in grafted and normal extensor digitorum longus (EDL) muscles of rats by analysis of serial 10-microns frozen transverse sections stained for enzymes which…

Non-neural and neural expression of myosin heavy chains by regenerated intrafusal fibers of rats.

Expression of myosin heavy chain (MHC) isoforms was studied in rat soleus (SOL) and extensor digitorum longus (EDL) muscles which regenerated in the presence or absence of innervation. Frozen sections of two 5 day denervated SOL and EDL grafts, two…

Tags: *Muscle Denervation, *Nerve Regeneration, 1991, Afferent/*metabolism, Animals, Female, Inbred Strains, Kucera J, Motor Endplate/metabolism, Muscles/*metabolism/transplantation, Myosins/analysis/*biosynthesis, Narvy R, Neurons, Neuroscience letters, Organ Specificity, Rats, Walro J M

Sharing of sensory terminals between the dynamic bag1 and static bag2 fibers in the rat muscle spindle.

The nuclear bag1 intrafusal fiber mediates the dynamic (velocity) sensitivity, whereas the nuclear bag2 and nuclear chain fibers mediate the static (length) sensitivity of muscle spindles to stretch. The pattern of branching of primary and secondary…

Tags: 1987, Afferent/*ultrastructure, Animals, Axons/ultrastructure, Brain research, Female, Inbred Strains, Kucera J, Muscle Spindles/*ultrastructure, Nerve Fibers/*ultrastructure, Neurons, Rats, Walro J M

The acute effects of methylenedioxymethamphetamine on dopamine release in the awake-behaving rat.

The effects of the recently classified Schedule I amphetamine analog, 3,4-methylenedioxymethamphetamine [+/-)-MDMA) on caudate and nucleus accumbens dopamine release and metabolism were studied by in vivo voltammetry and HPLC with electrochemical…

Tags: 1988, 3, 4-Dihydroxyphenylacetic Acid/metabolism, 4-methylenedioxyamphetamine, 4-Methylenedioxyamphetamine/analogs & derivatives/*pharmacology, Amphetamines/*pharmacology, Animals, Brain/drug effects/metabolism, Caudate Nucleus/drug effects/metabolism, Consciousness, Dopamine/*metabolism, European journal of pharmacology, Inbred Strains, Male, N-Methyl-3, Nucleus Accumbens/drug effects/metabolism, Rats, Spanos L J, Yamamoto B K

A neurochemical heterogeneity of the rat striatum as measured by in vivo electrochemistry and microdialysis.

The neurochemical heterogeneity of the rat striatum was assessed in vivo by measuring subregional changes in extracellular dopamine and DOPAC by in vivo electrochemistry and microdialysis in response to amphetamine and the D2 antagonist,…

Tags: 1990, 3, 4-Dihydroxyphenylacetic Acid/metabolism, Amphetamines/*pharmacology, Animals, Brain research, Corpus Striatum/*metabolism, Dopamine D2, Dopamine/*metabolism, Dopamine/drug effects, Electrochemistry, Inbred Strains, Male, Pehek E A, Rats, Receptors, Sulpiride/*pharmacology, Yamamoto B K

Browse Items (97 total)