Browse Items · NEOMED Bibliography Database

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

Alteration in L-DOPA evoked dopamine and DOPAC output under conditions of impaired vesicular dopamine storage.

We examined the effect of L-dihydroxyphenylalanine (L-DOPA) infusion in vitro upon dopamine (DA) and dihydroxyphenylacetic acid (DOPAC) output from superfused corpus striatum of vehicle and reserpine or tetrabenazine (TBZ) treated male rats.…

Tags: 1998, 3, 4-Dihydroxyphenylacetic Acid/*metabolism, Animals, Dluzen D E, Dopamine Agents/*pharmacology, Dopamine/*metabolism, Journal of neural transmission (Vienna, Austria : 1996), Levodopa/*pharmacology, Male, Pharmaceutical Vehicles, Rats, Reserpine/pharmacology, Sprague-Dawley, Synaptic Vesicles/*drug effects/metabolism, Tetrabenazine/pharmacology, Xu K

L-DOPA modulation of corpus striatal dopamine and dihydroxyphenylacetic acid output from intact and 6-OHDA lesioned rats.

In the present report we examined the differences in in vitro dopamine (DA) and dihydroxyphenylacetic acid (DOPAC) efflux from the corpus striatum (CS) of intact versus 6-hydroxydopamine (6-OHDA) lesioned (in substantia nigra) male rats in response…

Tags: *Sympathectomy, 1996, 3, 4-Dihydroxyphenylacetic Acid/*metabolism, Animals, Antiparkinson Agents/*pharmacology, Chemical, Corpus Striatum/drug effects/*metabolism, Dluzen D E, Dopamine/*metabolism, Journal of neural transmission (Vienna, Austria : 1996), Levodopa/*pharmacology, Male, Oxidopamine, Rats, Sprague-Dawley, Substantia Nigra/drug effects/metabolism, Xu K

The effect of GDNF on nigrostriatal dopaminergic function in response to a two-pulse K(+) stimulation.

We examined the effect of glial cell line-derived neurotrophic factor (GDNF) upon nigrostriatal dopaminergic function in response to two-pulse potassium (K(+)) stimulation in rats under in vivo microdialysis conditions. The two-pulse infusion…

Tamoxifen increases methamphetamine-evoked dopamine output from superfused striatal tissue fragments of male mice.

The antiestrogen, tamoxifen (TMX), has been shown to function as a neuroprotectant against the nigrostriatal dopaminergic (NSDA) neurotoxin, methamphetamine (MA), within male mice. In the present report, we examined the effects of a combined infusion…

Tags: 2004, Animals, Brain research, Corpus Striatum/*drug effects/*metabolism, Dluzen Dean E, Dopamine Agents/*pharmacology, Dopamine Plasma Membrane Transport Proteins, Dopamine/*metabolism, Drug Synergism, Estrogen Antagonists/*pharmacology, Inbred Strains, Male, Membrane Glycoproteins/metabolism, Membrane Transport Proteins/metabolism, Methamphetamine/*pharmacology, Mice, Nerve Tissue Proteins/metabolism, Tamoxifen/*pharmacology, Willett Matthew C

Further evidence for the mechanisms that may mediate nicotine discrimination.

Rats were trained to discriminate the interoceptive stimuli produced by subcutaneously administered 0.4 mg/kg nicotine in a two-lever, food-motivated, operant task. Once criterion performance was attained, dose-response experiments indicated an ED50…

Tags: 1992, Animals, Calcium Channel Blockers/pharmacology, Dihydropyridines/pharmacology, Discrimination Learning, Dopamine/*metabolism, Dose-Response Relationship, Drug, Inbred Strains, Indoles/pharmacology, Isradipine, Male, Meehan S M, Nicotine/administration & dosage/*pharmacology, Pharmacology, biochemistry, and behavior, Rats, Schechter M D, Thiazepines/pharmacology, Tropisetron

Nomifensine alters sex differences in striatal dopaminergic function.

A series of three experiments are presented in which the acute effects of the catecholamine reuptake inhibitor, nomifensine, upon striatal dopaminergic function are compared in female and male mice. In Experiment 1, treatment with nomifensine (5 mg…

Effects of cathinone and amphetamine on the neurochemistry of dopamine in vivo.

The effects of (-)cathinone, the primary psychoactive alkaloid of the Khat plant, were compared to those of (+)amphetamine in the anterior caudate-putamen and the nucleus accumbens. In vivo microdialysis was used to measure extracellular levels of…

Estrogen, but not testosterone, attenuates methamphetamine-evoked dopamine output from superfused striatal tissue of female and male mice.

The gonadal steroid hormone, estrogen, has the capacity to function as a neuroprotectant against methamphetamine (MA)-induced neurotoxicity of the nigrostriatal dopaminergic system within female, but not male, mice. In an attempt to understand some…

Tags: 2003, Anderson L I, Animals, Corpus Striatum/*drug effects/metabolism, Dluzen D E, Dopamine/*metabolism, Estrogens/*metabolism, Female, In Vitro Techniques, Male, Methamphetamine/*pharmacology, Mice, Myers R E, Neuropharmacology, Orchiectomy, Ovariectomy, Perfusion, Testosterone/*metabolism

Dose-response effects of estrogen and tamoxifen upon methamphetamine-induced behavioral responses and neurotoxicity of the nigrostriatal dopaminergic system in female mice.

In the present experiment we evaluated the dose-response effects of estrogen (estradiol benzoate; EB) and tamoxifen (TMX) in modulating the acute behavioral and chronic effects of methamphetamine (MA) upon the nigrostriatal dopaminergic (NSDA) system…

Oestrogen and nigrostriatal dopaminergic neurodegeneration: animal models and clinical reports of Parkinson's disease.

1. The exact nature of oestrogen (positive, negative or no effect) in the dopaminergic neurodegenerative disorder Parkinson's disease is controversial. 2. In the present review, we summarize the data on oestrogen and nigrostriatal dopaminergic…

Tags: 2007, Animal, Animals, Basal Ganglia/drug effects/*metabolism/pathology, Clinical and experimental pharmacology & physiology, Disease Models, Dluzen Dean E, Dopamine/*metabolism, Estrogens/*metabolism/pharmacology/therapeutic use, Humans, Liu Bin, Nerve Degeneration/drug therapy/*metabolism/pathology, Neurons/metabolism/pathology, Neuroprotective Agents/*metabolism/pharmacology/therapeutic use, Parkinson Disease/drug therapy/*metabolism/pathology, Parkinsonian Disorders/drug therapy/*metabolism/pathology, Substantia Nigra/drug effects/*metabolism/pathology

Testosterone enhances dopamine depletion by methamphetamine in male, but not female, mice.

We examined the effects of varying concentrations of testosterone propionate (T) treatment within intact and gonadectomized male and female mice with regard to its capacity to alter striatal dopamine (DA) depletion in response to a neurotoxic regimen…

Tags: *Sex Characteristics, 2008, Animals, Castration/methods, Corpus Striatum/drug effects/metabolism, Dluzen Dean E, Dopamine Uptake Inhibitors/*pharmacology, Dopamine/*metabolism, Dose-Response Relationship, Drug, Female, Lewis Chandani, Male, Methamphetamine/*pharmacology, Mice, Neuroscience letters, Testosterone Propionate/*pharmacology

Sex differences in methamphetamine-evoked striatal dopamine of mice are reversed by nomifensine.

Male mice show more severe striatal dopamine depletions to the psychostimulant, methamphetamine (MA). To gain some understanding for this sex difference, we examined MA-evoked dopamine (DA) responses from superfused striatal tissue fragments of male…

Sex differences in striatal dopaminergic function within heterozygous mutant dopamine transporter knock-out mice.

The issue of whether a deletion of the dopamine transporter (DAT) allele (+/- DAT) would differentially alter striatal dopamine (DA) and dihydroxyphenylacetic acid (DOPAC) concentrations and DA release upon potassium and methamphetamine (MA)…

Sex differences in K+-evoked striatal dopamine output from superfused striatal tissue fragments of reserpine-treated CD-1 mice.

Reserpine inhibits vesicular monoamine transporter-2 (VMAT-2) function and thereby impairs vesicular dopamine (DA) storage within nerve terminals. The present report compared the effects of reserpine treatment upon the striatal dopaminergic system in…

Tags: 2007, Adrenergic Uptake Inhibitors/*metabolism, Animals, Corpus Striatum/anatomy & histology/*metabolism, Dluzen D E, Dopamine Agents/metabolism, Dopamine/*metabolism, Female, Ji J, Journal of neuroendocrinology, Male, McDermott J L, Methamphetamine/metabolism, Mice, Potassium/*metabolism, Reserpine/*metabolism, Sex Factors, Tissue Culture Techniques, Vesicular Monoamine Transport Proteins/metabolism

Alteration of dopamine release by rat caudate putamen tissues superfused with alpha 2-macroglobulin.

Monoamine-activated alpha-2-macroglobulin (alpha 2M) has been shown to decrease the dopamine concentrations in rat caudate putamen (CP) in vivo as well as inhibit choline acetyltransferase activities in the culture of basal forebrain neurons. In this…

Intracranial infusion of monoamine-activated alpha 2-macroglobulin decreases dopamine concentrations within the rat caudate putamen.

Monoamine-activated alpha 2-macroglobulin (alpha 2M) has been shown to inhibit choline acetyltransferase in basal forebrain neurons as well as neurotrophin-dependent neuronal functions. The objective of this study was to determine whether…

Tags: *Nerve Degeneration, 1994, alpha-Macroglobulins/*pharmacology/physiology/toxicity, Animals, Caudate Nucleus/*drug effects/metabolism, Dluzen D E, Dopamine/*metabolism, Hu Y Q, Infusion Pumps, Journal of neuroscience research, Koo P H, Male, Putamen/*drug effects/metabolism, Rats, Sprague-Dawley

In vivo neurochemical and anatomical heterogeneity of the dopamine uptake system in the rat caudate putamen.

The neurochemical and anatomical heterogeneity of dopamine uptake blockade was studied at a medial and lateral position in each of 3 rostrocaudal areas of the rat caudate-putamen. In vivo voltammetric measures of extracellular dopamine indicated a…

Tags: 1989, 3, 4-Dihydroxyphenylacetic Acid/metabolism, Animals, Brain research, Caudate Nucleus/drug effects/*metabolism, Dopamine/*metabolism, Electrochemistry, Glynn G E, Homovanillic Acid/metabolism, Inbred Strains, Indoles/*pharmacology, Male, Mazindol/*pharmacology, Neurotransmitter Uptake Inhibitors/*pharmacology, Nomifensine/*pharmacology, Putamen/drug effects/*metabolism, Rats, Yamamoto B K

Dimebon attenuates methamphetamine, but not MPTP, striatal dopamine depletion.

Dimebon is an anti-histamine with central nervous system activity. In this report the effects of dimebon as a neuroprotectant in animal models of Parkinson's disease were tested as assessed in methamphetamine- and MPTP-induced striatal dopaminergic…

Tags: 2012, Animals, Corpus Striatum/*drug effects/metabolism, Darvesh Altaf S, Department of Pharmaceutical Sciences, Dluzen Dean E, Dopamine/*metabolism, Drug Synergism, Geldenhuys Werner J, Inbred C57BL, Indoles/*pharmacology, Methamphetamine/*pharmacology, Mice, NEOMED College of Pharmacy, Neurochemistry international

Effects of a novel dopamine uptake inhibitor upon extracellular dopamine from superfused murine striatal tissue.

The dopamine transporter (DAT) plays an important role in substance abuse, schizophrenia, and dopaminergic toxicity associated with the Parkinsonian animal model toxin, 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP). Accordingly, the DAT serves…

The effect of testosterone upon methamphetamine neurotoxicity of the nigrostriatal dopaminergic system.

The gonadal steroid hormone estrogen (E) can function as a neuroprotectant of nigrostriatal dopaminergic (NSDA) neurotoxicity, however, there exists very limited information on the role of testosterone (T) in this capacity. In the present report, the…

Tags: 2001, Animals, Brain research, Corpus Striatum/drug effects/*metabolism, Dluzen D E, Dopamine/*metabolism, Drug Implants, Female, Gao X, Male, Methamphetamine/*toxicity, Mice, Neuroprotective Agents/pharmacology, Neurotoxins/*toxicity, Orchiectomy, Ovariectomy, Potassium/pharmacology, Substantia Nigra/drug effects/*metabolism, Testosterone/administration & dosage/*pharmacology

Sex differences in methamphetamine-evoked striatal dopamine output are abolished following gonadectomy: comparisons with potassium-evoked output and responses in prepubertal mice.

Sex differences are reported for methamphetamine (MA)-induced neurotoxicity of the nigrostriatal dopaminergic system. In an attempt to understand some of the bases for these differences, we investigated MA-evoked dopamine (DA) responses from…

Tags: 2005, Animals, Dluzen Dean E, Dopamine Uptake Inhibitors/*pharmacology, Dopamine/*metabolism, Female, In Vitro Techniques, Male, Methamphetamine/*pharmacology, Mice, Neostriatum/drug effects/*metabolism, Neuroendocrinology, Orchiectomy, Ovariectomy, Potassium/*pharmacology, Salvaterra Ty J, Sex Characteristics, Sexual Maturation

Gender differences in modulatory effects of tamoxifen upon the nigrostriatal dopaminergic system.

It has been demonstrated that the gonadal steroid hormone estrogen can exert neuroprotective effects upon the nigrostriatal dopaminergic (NSDA) system against methamphetamine (MA)-induced neurotoxicity in female, but not male, mice. In contrast, the…

Tags: *Sex Characteristics, 2005, Animals, Corpus Striatum/*drug effects/metabolism, Dluzen Dean E, Dopamine/*metabolism, Female, Male, Mice, Mickley Katherine R, Motor Activity/drug effects/physiology, Pharmacology, biochemistry, and behavior, Substantia Nigra/*drug effects/metabolism, Tamoxifen/*pharmacology

Developmental and genetic influences upon gender differences in methamphetamine-induced nigrostriatal dopaminergic neurotoxicity.

The gonadal steroid hormone estrogen (E) may play an important role in sex differences in methamphetamine (MA)-induced neurotoxicity of the nigrostriatal dopaminergic (NSDA) system because E can serve as a neuroprotectant in female, but not male,…

Tags: *Sex Characteristics, 2004, Animals, Annals of the New York Academy of Sciences, Corpus Striatum/*drug effects/growth & development/metabolism, Dluzen Dean E, Dopamine/*metabolism, Female, Humans, Male, McDermott Janet L, Methamphetamine/*toxicity, Substantia Nigra/*drug effects/growth & development/metabolism

Age-related changes in nigrostriatal dopaminergic function in heterozygous mutant dopamine transporter knock-out mice.

In this report we compared three different parameters of nigrostriatal dopaminergic (NSDA) function - locomotor activity, striatal dopamine (DA) levels and 3,4-dihydroxyphenylacetic acid (DOPAC)/DA ratios between heterozygous mutant dopamine…

Methamphetamine-gonadal steroid hormonal interactions: effects upon acute toxicity and striatal dopamine concentrations.

Methamphetamine (MA)-related deaths and nigrostriatal dopaminergic (NSDA) neurotoxicity are greater in males. The exact basis for this gender difference is not known, but data, which show that estrogen (E) can function as a protectant of both the…

Striatal dopamine output is compromised within +/- BDNF mice.

We reported previously that mice lacking one brain-derived neurotrophic factor (BDNF) allele demonstrate elevated striatal dopamine (DA) concentrations but impaired behavioral responses involving the nigrostriatal dopaminergic (NSDA) system. To test…

Unconventional effects of estrogen uncovered.

The nigrostriatal dopamine system shows marked gender differences that, in many cases, can be attributable to estrogen. However, the virtual absence of conventional estrogen receptors within the nigrostriatal dopamine system has made it difficult to…

Tags: 2005, Animals, Corpus Striatum/*metabolism/physiology, Dluzen Dean E, Dopamine D2/metabolism, Dopamine/*metabolism, Estrogens/*physiology, GTP-Binding Proteins/metabolism, Humans, Receptors, Signal Transduction/physiology, Substantia Nigra/*metabolism/physiology, Trends in pharmacological sciences

The effect of gender and the neurotrophin, BDNF, upon methamphetamine-induced neurotoxicity of the nigrostriatal dopaminergic system in mice.

The interactive effects between gender and a selective alteration in the neurotrophin, brain-derived neurotrophic factor (BDNF) upon methamphetamine (MA)-induced neurotoxicity of the nigrostriatal dopaminergic (NSDA) system were assessed. MA…

Parity decreases methamphetamine-induced striatal dopaminergic perturbation.

The role of parity upon methamphetamine-induced neurotoxicity of the striatal dopaminergic system was assessed. Female CD-1 mice either remained nulliparous or underwent one or three complete pregnancies and were designated as the 0, 1 or 3 pregnancy…

Tags: *Parity, 2011, Animals, Corpus Striatum/*drug effects/metabolism/physiology, Dluzen Dean E, Dopamine/*metabolism, Female, Methamphetamine/*pharmacology, Mice, Neurochemistry international, Pregnancy

The effect of freezing and extraction upon striatal dopaminergic function.

Determinations of striatal dopamine (DA) and 3,4-dihydroxyphenylacetic acid (DOPAC) concentrations were compared under conditions where tissue was either frozen followed by extraction (FE) or extracted followed by freezing (EF). In Experiment 1,…

Tags: *Freezing, 2011, 3, 4-Dihydroxyphenylacetic Acid/metabolism, Analysis of Variance, Animals, Chemical Fractionation/methods, Corpus Striatum/*metabolism, Cryopreservation/methods, Dluzen Dean E, Dopamine/*metabolism, Journal of neuroscience methods, Male, Mice, Time Factors

The aromatic amino acid decarboxylase inhibitor, NSD-1015, increases release of dopamine: response characteristics.

Addition of the aromatic amino acid decarboxylase inhibitor, NSD-1015 (10 microM), to Krebs'-Ringer phosphate (KRP) superfusion medium, significantly increased the release of dopamine in vitro from superfused corpus striatum tissue fragments of male…

Tags: *Aromatic Amino Acid Decarboxylase Inhibitors, 1992, 3, 4-Dihydroxyphenylacetic Acid/metabolism, Animals, Brain/*drug effects/metabolism, Dluzen D, Dopamine/*metabolism, Hydrazines/*pharmacology, Male, McDermott J, Neuropharmacology, Rats, Reddy A, Sprague-Dawley

Striatal dopamine release in vitro from immature male rats shows enhanced responsiveness to pulsatile, but not continuous, infusions of L-dopa.

In the present experiment we compared the effects of continuous versus pulsed infusions of L-beta-3,4,dihydroxyphenylalanine (L-DOPA) upon dopamine and 3,4-dihydroxyphenylacetic acid (DOPAC) release in vitro from superfused corpus striatal tissue…

Tags: 1991, 3, 4-Dihydroxyphenylacetic Acid/metabolism, Aging/*metabolism, Animals, Brain research. Developmental brain research, Corpus Striatum/*metabolism, Dluzen D, Dopamine/*metabolism, Inbred Strains, Levodopa/*administration & dosage/pharmacology, Male, McDermott J, Pulsatile Flow, Rats

Modulatory effects of testosterone on

In this experiment, we examined the modulatory effects of testosterone on the parkinsonism-inducing drug 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) in two strains of mice. Orchidectomized male CD-1 and C57/B1 mice were implanted with either…

Alterations in nigrostriatal dopaminergic function within BDNF mutant mice.

The influence of brain-derived neurotrophic factor (BDNF) upon the nigrostriatal dopaminergic system was evaluated in weanling and adult mice carrying a targeted inactivated BDNF gene. Regional specificity of this BDNF mutation was assessed by…

Estrogen alters MPTP-induced neurotoxicity in female mice: effects on striatal dopamine concentrations and release.

The effects of estrogen on MPTP-induced neurotoxicity of the nigrostriatal dopaminergic system were examined in C57Bl and CD-1 mice. Ovariectomized mice with and without estrogen were treated with MPTP or its vehicle. The effects of these treatments…

Tags: *MPTP Poisoning, 1996, 3, 4-Dihydroxyphenylacetic Acid/metabolism, Animals, Corpus Striatum/*drug effects/*metabolism, Dluzen D E, Dopamine/*metabolism, Estradiol/*pharmacology, Female, Inbred C57BL, Inbred Strains, Journal of neurochemistry, Levodopa/pharmacology, Liu B, McDermott J L, Mice, Osmolar Concentration, Ovariectomy

Browse Items (55 total)