Abstract：
BACKGROUND:Recent studies have raised concerns about subtle long-lasting neurobiological changes that might be triggered by exposure to Cannabis derivatives, especially in a critical phase of brain maturation, such as puberty. The mesolimbic dopamine (DA) system, involved in the processing of drug-induced reward, is a locus of action of cannabinoids and endocannabinoids. Thus, we compared the effects of repeated cannabinoid administration in adolescent and adult rats on DA neuronal functions and responses to drugs of abuse. METHODS:Single-unit extracellular recordings from antidromically identified mesoaccumbens DA neurons and from their target cells in the nucleus accumbens were carried out in urethane-anesthetized rats. Animals were pretreated during adolescence or adulthood, for 3 days, with the cannabinoid agonist WIN55212.2 (WIN) or vehicle and allowed a 2-week interval. RESULTS:In cannabinoid-administered rats, DA neurons were significantly less responsive to the stimulating action of WIN, regardless of the age of pretreatment; however, in the adolescent group, but not in the adult, long-lasting cross-tolerance developed to morphine, cocaine, and amphetamine. CONCLUSIONS:Our study suggests that an enduring form of neuronal adaptation occurs in DA neurons after subchronic cannabinoid intake at a young age, affecting subsequent responses to drugs of abuse.
journal_name
Biol Psychiatryjournal_title
Biological psychiatryauthors
Pistis M,Perra S,Pillolla G,Melis M,Muntoni AL,Gessa GLdoi
10.1016/j.biopsych.2004.05.006subject
Has Abstractpub_date
2004-07-15 00:00:00pages
86-94issue
2eissn
0006-3223issn
1873-2402pii
S000632230400530Xjournal_volume
56pub_type
杂志文章abstract：BACKGROUND:Problems with the voluntary control of behavior, such as those leading to increased antisaccade errors, are accepted as evidence of prefrontal dysfunction in schizophrenia. We previously reported that speeded prosaccade responses, i.e., shorter response latencies for automatic shifts of attention to visual t...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2007.11.009
更新日期：2008-04-15 00:00:00
abstract：BACKGROUND:First degree relatives (FDR) of patients with schizophrenia have higher risk of developing schizophrenia than the general population. Previous positron emission tomography (PET) studies have shown that striatal presynaptic dopamine synthesis capacity is increased in schizophrenia. We investigated whether thi...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2007.04.017
更新日期：2008-01-01 00:00:00
abstract：:This study examined the relationship between borderline and impulsive personality traits on the one hand, and monoamine function on the other in 15 women with bulimia nervosa and 15 women with recurrent suicidal behavior. Platelet serotonin (5-HT) and platelet monoamine oxidase (MAO) activity were used as peripheral m...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(95)00384-3
更新日期：1996-08-01 00:00:00
abstract：:The volume of the entorhinal region is significantly reduced in postmortem brains of schizophrenics compared with controls (p less than 0.017). In addition, a significant reduction of neurons (p less than 0.017), but no significant increase in absolute glial cell numbers, is found. These results are consistent with th...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(88)90162-x
更新日期：1988-09-01 00:00:00
abstract：BACKGROUND:Prior neurophysiological studies on patients with premenstrual syndrome (PMS) have revealed sleep electroencephalographic alterations in both cycle phases. We report on a study evaluating saccadic eye movements in PMS patients. METHODS:Saccadic eye movements were examined in 21 women with and 21 women witho...
journal_title：Biological psychiatry
pub_type： 临床试验,杂志文章
doi：10.1016/s0006-3223(98)00012-2
更新日期：1998-10-15 00:00:00
abstract：:Seventeen drug-free patients with Alzheimer's disease (AD) and 15 normal elderly controls, of which 13 age- and sex-matched pairs were included, participated in a study of red blood cell (RBC) and plasma choline. Mean values for RBC choline, plasma choline, and the ratio of RBC/plasma choline did not differ between th...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(85)90039-3
更新日期：1985-04-01 00:00:00
abstract：:The present study was designed to examine differences in the electrodermal activity of schizophrenics born in the season of excessive risk (January-April), and those born in the season of nonexcessive risk (May-December). Thirty-two male schizophrenics were presented with a series of orienting tones (1000 Hz, 80dB, 2 ...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(90)90007-o
更新日期：1990-02-01 00:00:00
abstract：:There has been an explosion of research on fear extinction in humans in the past 2 decades. This has not only generated major insights, but also brought a new goal into focus: how to maintain extinction memory over time (i.e., extinction retention). We argue that there are still important conceptual and procedural cha...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2019.02.011
更新日期：2019-06-15 00:00:00
abstract：BACKGROUND:Cerebral myeloarchitecture shows substantial development across childhood and adolescence, and aberrations in these trajectories are relevant for a range of mental disorders. Differential myelination between intracortical and subjacent white matter can be approximated using signal intensities in T1-weighted ...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2018.09.027
更新日期：2019-03-01 00:00:00
abstract：:Postmortem cerebellar and frontal cortical membrane homogenates from human alcoholics, control subjects without neurological or psychiatric illnesses, and rats that chronically drank alcohol were studied to determine the binding characteristics of an imidazobenzodiazepine, [3H]Ro 15-4513. This ligand binds to classica...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(92)90309-n
更新日期：1992-04-15 00:00:00
abstract：BACKGROUND:Stress activates the hypothalamic-pituitary-adrenal (HPA) axis, so it was expected that posttraumatic stress disorder (PTSD) would be associated with activation of this axis; however, studies have found both increased and decreased cortisol in PTSD. To address this question, we collected saliva cortisol at h...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2004.05.011
更新日期：2004-08-01 00:00:00
abstract：BACKGROUND:A polymorphism of the human serotonin transporter gene (SCL6A4) has been associated with serotonin transporter expression and with processing of aversive stimuli in the amygdala. Functional imaging studies show that during the presentation of aversive versus neutral cues, healthy carriers of the short (s) al...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2006.08.019
更新日期：2007-04-15 00:00:00
abstract：:Single-unit recording techniques and liquid chromatography with electrochemical detection were used to measure the effects of neuroleptic pretreatment on the efficacy of dopamine transmission in the amygdaloid complex. Rats received twice-daily injections of clozapine (10.0 mg/kg), haloperidol (1.0 mg/kg), or vehicle ...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(88)90022-4
更新日期：1988-03-01 00:00:00
abstract：BACKGROUND:GPR88 is an orphan G protein coupled receptor highly enriched in the striatum, and previous studies have focused on GPR88 function in striatal physiology. The receptor is also expressed in other brain areas, and here we examined whether GPR88 function extends beyond striatal-mediated responses. METHODS:We c...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2015.05.020
更新日期：2016-06-01 00:00:00
abstract：BACKGROUND:Previous work has implicated noradrenergic beta-receptors in the consolidation and reconsolidation of conditioned fear. Less is known, however, about their role in fear expression and extinction. The beta-receptor blocker propranolol has been used clinically to reduce anxiety. With an auditory fear condition...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2009.01.009
更新日期：2009-05-15 00:00:00
abstract：:Stress is associated with obesity, and the neurobiology of stress overlaps significantly with that of appetite and energy regulation. This review will discuss stress, allostasis, the neurobiology of stress and its overlap with neural regulation of appetite, and energy homeostasis. Stress is a key risk factor in the de...
journal_title：Biological psychiatry
pub_type： 杂志文章,评审
doi：10.1016/j.biopsych.2013.01.032
更新日期：2013-05-01 00:00:00
abstract：BACKGROUND:Endocytic dysfunction and neurotrophin signaling deficits may underlie the selective vulnerability of hippocampal neurons during the progression of Alzheimer's disease (AD), although there is little direct in vivo and biochemical evidence to support this hypothesis. METHODS:Microarray analysis of hippocampa...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2010.05.030
更新日期：2010-11-15 00:00:00
abstract：:Prominent heightened arousal symptoms and clinical/laboratory findings implicate the central noradrenergic system in posttraumatic stress disorder (PTSD). Heightened arousal frequently manifests in relation to sleep in PTSD. Central noradrenergic systems have a role in regulating arousal levels during sleep. We theref...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(94)00238-X
更新日期：1995-08-01 00:00:00
abstract：BACKGROUND:The high-risk strategy is one of the most powerful approaches for identifying premorbid risk factors and reducing etiologic and phenotypic heterogeneity characteristic of the major psychiatric disorders. METHODS:This paper reviews the methods of high-risk research and findings from previous high-risk studie...
journal_title：Biological psychiatry
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/s0006-3223(99)00172-9
更新日期：1999-12-01 00:00:00
abstract：:Using magnetic resonance imaging (MRI), we measured the volumes of various brain structures and cerebrospinal fluid (CSF) in 19 men with dementia of the Alzheimer type (DAT) and 18 healthy age-matched control men. The mean (+/- S.D) Mini-Mental State exam score (MMSE) of the DAT men was 16 +/- 7; 9 were mildly (MMSE >...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(93)90153-5
更新日期：1993-11-01 00:00:00
abstract：:Previous studies indicate differences between schizophrenics and normals in thickness and overall size of the corpus callosum, particularly in female subjects. The present study compares the area of the corpus callosum as measured by magnetic resonance imaging (MRI) in men and women experiencing first-episode cases of...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(94)91237-8
更新日期：1994-06-15 00:00:00
abstract：BACKGROUND:Considering the magnitude of the reported changes in brain volume over time in first-episode patients it is unlikely that these changes are constant over the life-span of the schizophrenic illness. Thus, one would expect the progression in brain volume change in schizophrenia to follow a more complex traject...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2007.01.004
更新日期：2008-01-01 00:00:00
abstract：BACKGROUND:Only about one third of patients at high risk for psychosis based on current clinical criteria convert to a psychotic disorder within a 2.5-year follow-up period. Targeting clinical high-risk (CHR) individuals for preventive interventions could expose many to unnecessary treatments, underscoring the need to ...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2013.07.038
更新日期：2014-03-15 00:00:00
abstract：:Eighteen unmedicated patients suffering from major depressive disorder with melancholia (DSM-III) were examined for abnormalities in peripheral serotonin (5-HT) and related metabolites. Serotonin in platelet-free plasma and in platelets from melancholics was significantly reduced to 30% and 60% of their respective con...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(87)90100-4
更新日期：1987-12-01 00:00:00
abstract：BACKGROUND:To explore the domain-general risk factor of early-life social stress in mental illness, rearing rodents in persistent postweaning social isolation has been established as a widely used animal model with translational relevance for neurodevelopmental psychiatric disorders such as schizophrenia. Although chan...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2017.12.010
更新日期：2018-07-15 00:00:00
abstract：:There is substantial evidence that depression is a risk factor for cardiac morbidity and mortality, both for patients without clinical evidence of coronary heart disease at index examination and for patients with established coronary disease. The relationship is most apparent for patients with a recent acute myocardia...
journal_title：Biological psychiatry
pub_type： 杂志文章,评审
doi：10.1016/s0006-3223(03)00111-2
更新日期：2003-08-01 00:00:00
abstract：BACKGROUND:Suicide is a major risk for those with bipolar disorder, a risk amplified by comorbid substance abuse in some, but not all, previous studies. To further explore the relationships of substance abuse, suicide, and bipolarity as they present in clinical practice, we analyzed standardized clinical data from a la...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2004.10.003
更新日期：2004-11-15 00:00:00
abstract：:Potential recovery of electrophysiological and neuropsychological functions was investigated in alcoholics completing treatment and controls. Event-related potentials (ERPs) and neuropsychological tests were administered initially and repeated 14 months later. Alcoholics were classified as resumers or abstainers based...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(94)90639-4
更新日期：1994-10-01 00:00:00
abstract：BACKGROUND:Morphometric magnetic resonance imaging (MRI) studies of pediatric bipolar disorder (BD) have not reported on gray matter volumes but have reported increased lateral ventricular size and presence of white matter hyperintensities (WMH). We studied gray matter volume, ventricular-to-brain ratios (VBR), and num...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2005.03.039
更新日期：2005-08-01 00:00:00
abstract：BACKGROUND:High rates of comorbidity, shared risk, and overlapping therapeutic mechanisms have led psychopathology research toward transdiagnostic dimensional investigations of clustered symptoms. One influential framework accounts for these transdiagnostic phenomena through a single general factor, sometimes referred ...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2018.03.012
更新日期：2018-09-15 00:00:00
