Abstract:
:There is an increasing awareness that a psychosis, similar to that of schizophrenic psychosis, can be derived from cocaine addiction. Thus, the prototypical atypical antipsychotic medication, clozapine, a 5-HT(2)/DA(2) antagonist, was studied for its effects on cocaine-induced dopamine (DA) and serotonin (5-HT) release in nucleus accumbens (NAcc) of behaving male Sprague-Dawley laboratory rats with In Vivo Microvoltammetry, while animals' locomotor (forward ambulations), an A(10) behavior, was monitored at the same time with infrared photobeams. Release mechanisms for monoamines were determined by using a depolarization blocker, gamma-butyrolactone (gammaBL). BRODERICK PROBE microelectrodes selectively detected release of DA and 5-HT within seconds and sequentially in A(10) nerve terminals, NAcc. Acute and subacute studies were performed for each treatment group. Acute studies are defined as single injection of drug(s) after a stable baseline of each monoamine and locomotor behavior has been achieved. Subacute studies are defined as 24-h follow-up studies on each monoamine and locomotor behavior, in the same animal at which time, no further drug was administered. Results showed that (1) acute administration of cocaine (10 mg/kg ip) (n=5) significantly increased both DA and 5-HT release above baseline (P<.001) while locomotion was also significantly increased above baseline (P<.001). In subacute studies, DA release decreased significantly below baseline (P<.001) and significant decreases in 5-HT release occurred at the 15-min mark and at each time point during the second part of the hour (P<.05); the maximum decrease in 5-HT was 40% below baseline. Locomotor behavior, on the other hand, increased significantly above baseline (P<.05). (2) Acute administration of clozapine/cocaine (20 and 10 mg/kg ip, respectively; n=6) produced a significant block of the cocaine-induced increase in DA (P<.001) and 5-HT release (P<.001). Cocaine-induced locomotion was blocked simultaneously with each monoamine by clozapine as well (P<.001). In subacute studies, DA release continued to be blocked presumably via clozapine by exhibiting a statistically significant decrease (P<.001), but 5-HT release increased significantly (P<.001), while cocaine-induced locomotor activity also continued to be antagonized by clozapine, i.e., locomotor activity exhibited no difference from baseline (P>.05). In summary, acute studies (a) support previous data from this laboratory and others that cocaine acts as a stimulant on the monoamines, DA and 5-HT and on locomotor behavior as well and (b) show that clozapine, 5-HT(2)/DA(2) antagonist, blocked enhanced DA, 5-HT and psychomotor stimulant behavior induced by cocaine. Subacute studies (a) suggest that withdrawal responses occurred in the cocaine group, based on recorded deficiencies in monoamine neurotransmitters (b) show that withdrawal effects in the cocaine group likely presynaptic, were distinguished from locomotor behavior, classically known to be mediated postsynaptically, and finally, (c) suggest that clozapine, with longer lived pharmacokinetic properties, reversed 5-HT cocaine-related withdrawal effects, but was unable to reverse DA cocaine-related withdrawal responses. Taken together with data from this laboratory, in which the 5-HT(2A/2C) antagonist, ketanserin, affected cocaine neurochemistry in much the same way as did clozapine, a mediation by either separate or combined 5-HT(2A/2C) receptors for these clozapine/cocaine interactions, is suggested. Further studies, designed to tease out the responses of selective 5-HT(2A) and 5-HT(2C) receptor compounds to cocaine and clozapine/cocaine, are underway.
journal_name
Prog Neuropsychopharmacol Biol Psychiatryauthors
Broderick PA,Hope O,Okonji C,Rahni DN,Zhou Ydoi
10.1016/j.pnpbp.2003.09.032subject
Has Abstractpub_date
2004-01-01 00:00:00pages
157-71issue
1eissn
0278-5846issn
1878-4216pii
S0278-5846(03)00245-8journal_volume
28pub_type
杂志文章abstract::Neurocardiac dysregulation has been reported in schizophrenia. Indices of heart rate variability (HRV) are useful in assessing the status of cardiac autonomic regulation. We explored within-subject changes in HRV indices in acutely ill patients with schizophrenia treated with risperidone. Sixteen medication-naïve or m...
journal_title:Progress in neuro-psychopharmacology & biological psychiatry
pub_type: 杂志文章
doi:10.1016/j.pnpbp.2010.04.017
更新日期:2010-08-16 00:00:00
abstract::Auditory verbal hallucinations (AVHs) constitute a frequent and distressing symptom of schizophrenia, associated with physical, emotional, and cognitive challenges. Despite their clinical importance, changes in the multiple dimensions of AVHs during treatment have rarely been examined, and subjective views thereof hav...
journal_title:Progress in neuro-psychopharmacology & biological psychiatry
pub_type: 杂志文章
doi:10.1016/j.pnpbp.2019.109671
更新日期:2019-12-20 00:00:00
abstract::Acceleration of blood leukocyte apoptosis in major depression has been described. The present studies have been undertaken to estimate the level of apoptosis of blood leukocytes in patients with depression and to examine the mechanisms leading to apoptosis. Blood was taken from 29 patients with depression (age 48.2+/-...
journal_title:Progress in neuro-psychopharmacology & biological psychiatry
pub_type: 杂志文章
doi:10.1016/j.pnpbp.2007.11.012
更新日期:2008-04-01 00:00:00
abstract:PURPOSE OF THE REVIEW:Nutrition, as part of lifestyle and modifiable environmental factors, constitutes an interesting approach for the prevention of geriatric syndromes. The objective of this review was to examine the most recent evidence on the association between nutrition, from dietary patterns to specific nutrient...
journal_title:Progress in neuro-psychopharmacology & biological psychiatry
pub_type: 杂志文章,评审
doi:10.1016/j.pnpbp.2019.109703
更新日期:2019-12-20 00:00:00
abstract::1. Disturbances in cortisol secretory patterns and excessive secretion of cortisol after a variety of neuroendocrine stimulation tests indicate excessive activity of the hypothalamic-pituitary-adrenocortical axis in depression. 2. Peripheral indicators of hypercortisolemia have also been observed (e.g. enlarged adrena...
journal_title:Progress in neuro-psychopharmacology & biological psychiatry
pub_type: 杂志文章
doi:10.1016/s0278-5846(98)00003-7
更新日期:1998-02-01 00:00:00
abstract::Recent studies have revealed that aberrant vitamin A signaling may lead to memory deficits in rodents. Present study investigates the potential of all-trans-retinoic acid (ATRA) an agonist at retinoid acid family of receptors, in cognitive dysfunctions associated with experimental dementia. Streptozotocin (STZ) [3 mg/...
journal_title:Progress in neuro-psychopharmacology & biological psychiatry
pub_type: 杂志文章
doi:10.1016/j.pnpbp.2012.09.012
更新日期:2013-01-10 00:00:00
abstract::The study of the causes and mechanisms underlying psychiatric disorders requires the use of non-human models for the test of scientific hypotheses as well as for use in pre-clinical drug screening and discovery. This review argues in favor of the use of zebrafish as a novel animal model to study the impact of early (s...
journal_title:Progress in neuro-psychopharmacology & biological psychiatry
pub_type: 杂志文章,评审
doi:10.1016/j.pnpbp.2010.10.010
更新日期:2011-08-01 00:00:00
abstract::A strong positive association between depression and alcoholism is evident in epidemiological studies. Curiously, the incidence of smoking (nicotine intake) is also very high among depressed individuals. Because neuronal nicotinic receptors have been implicated in mood regulation as well as in reinforcing effects of a...
journal_title:Progress in neuro-psychopharmacology & biological psychiatry
pub_type: 杂志文章
doi:10.1016/j.pnpbp.2008.09.010
更新日期:2009-04-30 00:00:00
abstract::1. The effect of chronic antidepressant administration on CRE-, SP1- and GRE-binding activity was studied in rat hippocampus and frontal cortex. 2. Fluoxetine and desipramine (3 and 10 mg/kg/day respectively) were given to rats for 21 consecutive days. The animals were killed 3 hr after the last injection and nuclear ...
journal_title:Progress in neuro-psychopharmacology & biological psychiatry
pub_type: 杂志文章
doi:10.1016/s0278-5846(98)00040-2
更新日期:1998-07-01 00:00:00
abstract::Motor symptoms including neurological soft signs have been found to be more prevalent in schizophrenic patients. In addition, catatonic symptoms and neuroleptic treatment as well may influence cortical and subcortical motor organization in schizophrenia. The results of previous neuroimaging studies exploring motor fun...
journal_title:Progress in neuro-psychopharmacology & biological psychiatry
pub_type: 杂志文章
doi:10.1016/s0278-5846(01)00271-8
更新日期:2002-04-01 00:00:00
abstract::Correlation between specific binding potencies "in vitro" of several benzodiazepines and activities in SCR-habituation test is very satisfactory. As the SCR-habituation test might be considered as an elementary model of anxiety state, the test is suggested to be used as an intermediate psychopharmacological tool befor...
journal_title:Progress in neuro-psychopharmacology & biological psychiatry
pub_type: 杂志文章
doi:10.1016/0278-5846(85)90191-5
更新日期:1985-01-01 00:00:00
abstract::1. The authors have previously shown that direct activation of metabotropic glutamate receptors (mGluRs) by (S)-3,5-dihydroxyphenylglycine ((S)-DHPG) can induce a long-lasting potentiation of synaptic transmission in the rat dentate gyrus in vitro. Here the authors provide further characterisation of this agonist-indu...
journal_title:Progress in neuro-psychopharmacology & biological psychiatry
pub_type: 杂志文章
doi:10.1016/s0278-5846(98)00095-5
更新日期:1999-01-01 00:00:00
abstract::1. Within triads of rats, individuals can be discerned according to their competition for sucrose-pellets as a high-, a medium- and a poor-performing animal. 2. The competition-rates, expressed as scores, are affected by serotonergic drugs: upon inhibiting tryptophan-hydroxylase, the characteristic abstention of the p...
journal_title:Progress in neuro-psychopharmacology & biological psychiatry
pub_type: 杂志文章
doi:10.1016/0278-5846(88)90009-7
更新日期:1988-01-01 00:00:00
abstract::A system is described for avoidance conditioning of the budgerigar (Melopsittacus undulatus), for sound patterns consisting of one or two sequential subunits and to discriminate between two closely resembling sounds. Electric shock was used as the unconditioned stimulus. Simple conditioning was accomplished in about 3...
journal_title:Progress in neuro-psychopharmacology & biological psychiatry
pub_type: 杂志文章
doi:10.1016/0278-5846(86)90039-4
更新日期:1986-01-01 00:00:00
abstract::Amyotrophic lateral sclerosis (ALS) is a fatal disorder of motor neuron degeneration with unclear etiology and no effective treatment to date. ALS is, however, increasingly recognized as a multisystem disorder associated with impaired cognition. The overlap between ALS and dementia at clinical, genetic and neuropathol...
journal_title:Progress in neuro-psychopharmacology & biological psychiatry
pub_type: 杂志文章,评审
doi:10.1016/j.pnpbp.2010.07.017
更新日期:2011-03-30 00:00:00
abstract::Recent case reports of postpartum psychosis are reviewed, which suggest hypotheses for the aetiology of this disease. The main themes are: The relationship to manic depression. Premenstrual relapse. Prepartum onset. Onset after miscarriage or evacuation of a trophoblastic tumour. Onset after bromocriptine treatment. A...
journal_title:Progress in neuro-psychopharmacology & biological psychiatry
pub_type: 杂志文章,评审
doi:10.1016/0278-5846(94)90001-9
更新日期:1994-05-01 00:00:00
abstract::Zolpidem is a rapid-onset, short-duration, quickly eliminated imidazopyridine hypnotic. It has been suggested that zolpidem may produce less memory and cognitive impairment than benzodiazepines (BZs) due to its low binding affinity for BZ receptor subtypes found in areas of the brain that are involved in learning and ...
journal_title:Progress in neuro-psychopharmacology & biological psychiatry
pub_type: 杂志文章
doi:10.1016/s0278-5846(02)00254-3
更新日期:2002-10-01 00:00:00
abstract::The interaction between genes and environment seems to be relevant for the development of Attention Deficit/Hyperactivity Disorder (ADHD), one of the most prevalent childhood psychiatric diseases. The occurrence of ADHD is typically associated with poor academic performance, probably reflecting learning difficulties a...
journal_title:Progress in neuro-psychopharmacology & biological psychiatry
pub_type: 杂志文章
doi:10.1016/j.pnpbp.2009.06.012
更新日期:2009-10-01 00:00:00
abstract::1. Phorbol 12-myristate-13-acetate (PMA), a protein kinase C activator, elevated cyclic AMP accumulation in EBV-transformed human B-lymphocytes, and potentiated isoproterenol-, prostaglandin- (PGE1), cholera toxin-, and forskolin-stimulated cyclic AMP accumulation. 2. The dopamine D1 receptor agonist, SKF38393 (10(-7)...
journal_title:Progress in neuro-psychopharmacology & biological psychiatry
pub_type: 杂志文章
doi:10.1016/0278-5846(95)00295-2
更新日期:1996-01-01 00:00:00
abstract::There has been significant recent progress in understanding the neurobiological mechanisms of antidepressant treatments. The delayed-onset of action of monoamine-based antidepressant drugs have been associated to their ability to slowly increase synaptic plasticity and neuronal excitability via altering neurotrophic s...
journal_title:Progress in neuro-psychopharmacology & biological psychiatry
pub_type: 杂志文章,评审
doi:10.1016/j.pnpbp.2015.06.001
更新日期:2016-01-04 00:00:00
abstract::1. The patient population consisting of fifteen patients was divided into three groups, namely: diazepam group, phenobarbital group and placebo group. After three weeks the medicated groups were switched to placebo for a week and the placebo group was given phenobarbital. 2. The parameters to be assessed once a week c...
journal_title:Progress in neuro-psychopharmacology & biological psychiatry
pub_type: 临床试验,杂志文章
doi:10.1016/s0278-5846(82)80175-9
更新日期:1982-01-01 00:00:00
abstract::1. Behavioural experiments were carried out on adult rats made hypothyroid and hyperthyroid. The hypothyroid rats in an "open field" situation reduced the number of squares crossed and boluses defecated, the hyperthyroid rats reduced the number of squares crossed. A swimming endurance was conducted to evaluate the phy...
journal_title:Progress in neuro-psychopharmacology & biological psychiatry
pub_type: 杂志文章
doi:10.1016/0278-5846(89)90044-4
更新日期:1989-01-01 00:00:00
abstract::The rate of hippocampal neurogenesis declines with aging. This is partly explained by decreased neural responsiveness to various cues stimulating metabolism. AMP-activated protein kinase (AMPK), a pivotal enzyme regulating energy homeostasis in response to metabolic demands, showed the diminished sensitivity in periph...
journal_title:Progress in neuro-psychopharmacology & biological psychiatry
pub_type: 杂志文章
doi:10.1016/j.pnpbp.2016.06.011
更新日期:2016-11-03 00:00:00
abstract::Monoamine oxidase (MAO) in astroglial primary cultures increased during cell development. The enzyme activity towards type B substrate was further enhanced in cultures treated with 0.25 mM dibutyl cyclic AMP (dBcAMP), although dBcAMP (1 mM) does not effect MAO activity in vitro. It has been estimated that the dBcAMP t...
journal_title:Progress in neuro-psychopharmacology & biological psychiatry
pub_type: 杂志文章
doi:10.1016/0278-5846(83)90046-5
更新日期:1983-01-01 00:00:00
abstract:BACKGROUND:Brain morphometric measures from magnetic resonance imaging (MRI) have not been used to discriminate between first-episode patients with schizophrenia and healthy subjects. METHODS:Magnetic resonance images were acquired from 34 (17 males, 17 females) first-episode schizophrenia patients and 48 (24 males, 2...
journal_title:Progress in neuro-psychopharmacology & biological psychiatry
pub_type: 杂志文章
doi:10.1016/j.pnpbp.2009.09.004
更新日期:2010-02-01 00:00:00
abstract::Monoamine oxidases (MAO) influence the monoamine levels in brain by virtue of their role in neurotransmitter breakdown. MAO B is the predominant form in glial cells and in platelets. MAO B structure, function and kinetics are described as a background for the effect of alterations in its activity on behavior. The need...
journal_title:Progress in neuro-psychopharmacology & biological psychiatry
pub_type: 杂志文章,评审
doi:10.1016/j.pnpbp.2016.02.005
更新日期:2016-08-01 00:00:00
abstract:BACKGROUND:Intent-to-treat analyses from a randomized controlled trial showed significant between-group differences favouring micronutrient treatment on the Clinical Global Impression-Improvement, but no group differences on clinician, parent and teacher ratings of overall ADHD symptoms. There was an advantage of micro...
journal_title:Progress in neuro-psychopharmacology & biological psychiatry
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.pnpbp.2018.09.007
更新日期:2019-03-08 00:00:00
abstract::Several environmental factors with periodic changes in intensity during the calendar year have been put forward to explain the increase in suicide frequency during spring and summer. In the current study we investigated the effect of averaged daily sunshine duration of periods with different lengths and 'lags' (i.e. t...
journal_title:Progress in neuro-psychopharmacology & biological psychiatry
pub_type: 杂志文章
doi:10.1016/j.pnpbp.2016.10.003
更新日期:2017-02-06 00:00:00
abstract::Tardive dyskinesia (TD) is an adverse movement disorder induced by chronic treatment with antipsychotics drugs. The contribution of common genetic variants to TD susceptibility has been investigated in recent years, but with limited success. The aim of the current study was to investigate the potential contribution of...
journal_title:Progress in neuro-psychopharmacology & biological psychiatry
pub_type: 杂志文章
doi:10.1016/j.pnpbp.2019.109659
更新日期:2019-08-30 00:00:00
abstract::Group II metabotropic glutamate receptor (mGluR2/3) agonists once showed promise as non-dopaminergic antipsychotic drugs because of their efficacy in alleviating symptoms of schizophrenia (SZ) in both animal models and human patients. However, the recent failure of Phase III clinical trials dealt a huge blow to the sc...
journal_title:Progress in neuro-psychopharmacology & biological psychiatry
pub_type: 杂志文章,评审
doi:10.1016/j.pnpbp.2015.02.012
更新日期:2015-07-03 00:00:00