Abstract:
:While the long-term administration of antipsychotics is known to cause dopamine supersensitivity psychosis (DSP), recent studies revealed that DSP helps form the foundation of treatment resistance. Electroconvulsive shock (ES) is one of the more effective treatments for treatment-resistant schizophrenia. The objective of this study was to examine whether repeated ES can release rats from dopamine supersensitivity states such as striatal dopamine D2 receptor (DRD2) up-regulation and voluntary hyperlocomotion following chronic administration of haloperidol (HAL). HAL (0.75 mg/kg/day) was administered for 14 days via mini-pumps implanted in rats, and DRD2 density and voluntary locomotion were measured one day after drug cessation to confirm the development of dopamine supersensitivity. The rats with or without dopamine supersensitivity received repeated ES or sham treatments, and then DRD2 density was assessed and a voluntary locomotion test was performed. Chronic treatment with HAL led to the up-regulation of striatal DRD2 and hyperlocomotion in the rats one day after drug cessation. We thus confirmed that these rats experienced a dopamine supersensitivity state. Moreover, after repeated ES, locomotor activity and DRD2 density in the DSP model rats fell to the control level, while an ES sham operation had no effect on the dopamine supersensitivity state. The present study suggests that repeated ES could release DSP model rats from dopamine supersensitivity states. ES may be helpful for patients with DSP.
journal_name
Schizophr Resjournal_title
Schizophrenia researchauthors
Kimura M,Oda Y,Oishi K,Yoshino K,Kimura H,Niitsu T,Kanahara N,Shirayama Y,Hashimoto K,Iyo Mdoi
10.1016/j.schres.2020.11.062subject
Has Abstractpub_date
2021-01-08 00:00:00pages
1-6eissn
0920-9964issn
1573-2509pii
S0920-9964(20)30654-Xjournal_volume
228pub_type
杂志文章abstract:BACKGROUND:Noncompliance is common in patients with schizophrenia and can have serious consequences; therefore research of the variables associated with noncompliance is a priority. Although the MEMS device is regarded as the "reference standard" for evaluating compliance, it has been used in very few published studies...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2008.09.007
更新日期:2009-02-01 00:00:00
abstract::This paper examines trait arousability (TA), a temperament characteristic, in 47 stable outpatients with schizophrenia and 50 non-psychiatric controls. Self-reported levels of stress were obtained during a negative and positive memory speech task. Levels of TA, and the association of TA scores with reported stress dur...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2004.01.008
更新日期:2004-11-01 00:00:00
abstract:BACKGROUND:Neurodevelopmental models of schizophrenia suggest that cognitive deficits may be observed during childhood and adolescence, long before the onset of psychotic symptoms. Elucidating the trajectory of normal cognitive development during childhood and adolescence may therefore provide a basis for identifying s...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2013.11.023
更新日期:2014-01-01 00:00:00
abstract::Thirty-six subjects aged 16 years or older judged at risk for a first episode of psychosis within a North American multi-site study of the schizophrenia prodrome [McGlashan et al., Schizophr. Res. (2003); Miller et al., Schizophr. Res. (2003)] performed at levels intermediate to population norms and data reported for ...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2003.08.007
更新日期:2004-04-01 00:00:00
abstract:BACKGROUND:While poor premorbid functioning is associated with poorer outcomes in psychotic illnesses, little is known about whether it is also a risk factor for suicide attempts. OBJECTIVE:The current study examined the association of premorbid functioning and suicide attempts in a county-wide cohort of first-admissi...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2009.11.005
更新日期:2010-02-01 00:00:00
abstract::We investigated IL1B genetic variation previously associated with risk for transition to psychosis for its association with gene expression in human post-mortem dorsolateral prefrontal cortex (DLPFC) from 74 (37 schizophrenia, 37 control) individuals and brain structure in 92 (44 schizophrenia, 48 control) living indi...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2018.09.008
更新日期:2019-02-01 00:00:00
abstract:BACKGROUND:Neuroimaging findings implicate bilateral superior temporal regions in the genesis of auditory-verbal hallucinations (AVH). This study aimed to investigate whether 1 Hz repetitive transcranial magnetic stimulation (rTMS) of the bilateral temporo-parietal region would lead to increased effectiveness in the ma...
journal_title:Schizophrenia research
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.schres.2009.07.013
更新日期:2009-10-01 00:00:00
abstract::This study assessed visuospatial attention in healthy adults and medicated schizophrenic patients. Participants performed a visual orientation task in which a peripheral cue was followed. at different intervals, by a target presented either at valid or invalid locations. When the long stimulus onset asynchrony (SOA) w...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/s0920-9964(99)00044-4
更新日期:1999-11-09 00:00:00
abstract::Nondeclarative memory (NDM) has subtypes associated with different brain regions; learning of a probabilistic classification task is impaired by striatal damage and learning of a gambling task is impaired by ventromedial prefrontocortical damage. Typical and atypical antipsychotic medications differentially affect imm...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/s0920-9964(02)00315-8
更新日期:2003-06-01 00:00:00
abstract::Schizophrenia is associated with significant brain abnormalities, including changes in brain metabolites as measured by proton magnetic resonance spectroscopy (MRS). What remains unclear is the extent to which these changes are a consequence of the emergence of psychotic disorders or the result of treatment with antip...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2008.03.012
更新日期:2008-07-01 00:00:00
abstract::Few studies have investigated the relationships between static, elementary neurocognitive functions, dynamic measures of learning potential and functional status in schizophrenia, despite the putative role of learning potential in models of the relationship between static neurocognitive function and functional status ...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2009.08.011
更新日期:2010-02-01 00:00:00
abstract::Motion-induced blindness (MIB) occurs when target stimuli are presented together with a moving distractor pattern. Most observers experience the targets disappearing and reappearing repeatedly for periods of up to several seconds. MIB can be viewed as a striking marker for the organization of cognitive functioning. In...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2005.08.012
更新日期:2006-01-31 00:00:00
abstract::Younger patients with schizophrenia have most likely experienced fewer adverse consequences of the illness than older patients who may have experienced a lifetime of treatment as well as socio-economic problems as a consequence of the illness. There is limited information regarding differential efficacy of long-acting...
journal_title:Schizophrenia research
pub_type: 杂志文章,多中心研究
doi:10.1016/j.schres.2016.09.034
更新日期:2017-01-01 00:00:00
abstract::Most individuals with schizophrenia will be confronted with some form of stigma. In recent years, clinicians and family members have increasingly contested the term "schizophrenia". Many of them discuss changing this name, as a means to fight stigma. Up until now, surprisingly, most research has been conducted using s...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2019.11.054
更新日期:2020-02-01 00:00:00
abstract::We examined the fractionation of executive functioning performance in ninety patients with schizophrenia, who were tested for initiation, sustained attention, switching/flexibility, attention allocation and impulsivity/disinhibition. The participants were also given tests of general intelligence and memory. We analyse...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2005.08.011
更新日期:2006-01-31 00:00:00
abstract::The purpose of the present study was to investigate the patterns of interregional correlations of serotonin transporter (SERT) availability with glucose metabolism using 7-Tesla magnetic resonance imaging (MRI) and high-resolution positron emission tomography (PET) with 11C-3-amino-4-(2-dimethylaminomethylphenylthio)b...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2016.10.020
更新日期:2017-04-01 00:00:00
abstract:OBJECTIVE:Executive dysfunction is a common feature of schizophrenia and bipolar disorder (BP). While deficits in social cognitive abilities, including theory of mind (ToM), have been suggested to be specific to schizophrenia, available evidence suggests that there is also a significant overlap in social cognitive perf...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2016.06.007
更新日期:2016-10-01 00:00:00
abstract::Diminished expressivity is a characteristic feature of schizophrenia-spectrum pathology. However, attempts to elucidate the neurobiological underpinnings of diminished expressivity have yielded limited information. The present study posited that diminished expressivity was associated with a right, but not left-hemisph...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2009.01.010
更新日期:2009-04-01 00:00:00
abstract::Grey matter brain networks are disrupted in schizophrenia, but it is still unclear at which point during the development of the illness these disruptions arise and whether these can be associated with behavioural predictors of schizophrenia. We investigated if single-subject grey matter networks were disrupted in a sa...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2015.08.025
更新日期:2015-10-01 00:00:00
abstract::Normally, when two brief, non-startling auditory stimuli are presented 500 ms apart, with long (e.g., 10 s) interpair intervals, the positive potential occurring approx. 50 ms after the first stimulus (P50) is relatively large, and the P50 to the second stimulus is smaller. In schizophrenia patients, however, the P50 ...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/s0920-9964(97)00122-9
更新日期:1998-02-27 00:00:00
abstract::In this study, we examined the preliminary concurrent validity of a brief version of the Prodromal Questionnaire (PQ-B), a self-report screening measure for psychosis risk syndromes. Adolescents and young adults (N=141) who presented consecutively for clinical assessment to one of two early psychosis research clinics ...
journal_title:Schizophrenia research
pub_type: 杂志文章,多中心研究
doi:10.1016/j.schres.2011.03.029
更新日期:2011-06-01 00:00:00
abstract:BACKGROUND:A false sense of reality is a characteristic of schizophrenia spectrum disorders (SSD). Reality confusion may also emanate from posterior orbitofrontal cortex (OFC) lesions, as evident in confabulations that patients act upon and disorientation. This confusion can be measured by repeated runs of a continuous...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2018.07.036
更新日期:2019-02-01 00:00:00
abstract:OBJECTIVE:To assess the prevalence and correlates of antipsychotic polypharmacy (APP) across decades and regions. METHODS:Electronic PubMed/Google Scholar search for studies reporting on APP, published from 1970 to 05/2009. Median rates and interquartile ranges (IQR) were calculated and compared using non-parametric t...
journal_title:Schizophrenia research
pub_type: 杂志文章,meta分析,评审
doi:10.1016/j.schres.2012.03.018
更新日期:2012-06-01 00:00:00
abstract::We tested the hypothesis that the expression of schizophrenic psychopathology is dependent on the stage of adolescent development. The study had a retrospective design, using high-quality case-note material of cases of schizophrenia at first admission. Patients with onset of illness between the age of 11 and 21 years ...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/0920-9964(94)00020-9
更新日期:1995-01-01 00:00:00
abstract:BACKGROUND:Many studies have identified urban-rural differences in the occurrence of schizophrenia. Though unknown, the underlying causes responsible for these differences have been hypothesized to include urban-rural differences in toxic exposures, diet, infections, stress, or an artifact due to selective migration. F...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2015.08.028
更新日期:2015-10-01 00:00:00
abstract:BACKGROUND:Executive Functioning (EF) is an important factor for community functioning for people with severe mental illness. Cognitive remediation programs often improve EF, but do so by using multiple therapeutic techniques. Little is known regarding how individual treatment elements promote cognitive improvement. Os...
journal_title:Schizophrenia research
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.schres.2017.08.052
更新日期:2019-01-01 00:00:00
abstract::Patients with schizophrenia and bipolar disorder (BD) shared a significant overlap in genetic susceptibility, pharmacological treatment responses, neuropsychological deficits, and epidemiological features. However, it remains unknown whether these clinical overlaps are mediated by shared or disorder-specific abnormali...
journal_title:Schizophrenia research
pub_type: 杂志文章,meta分析
doi:10.1016/j.schres.2017.01.005
更新日期:2017-07-01 00:00:00
abstract::Insight was investigated in 180 individuals consecutively admitted to a comprehensive early psychosis treatment program. Insight was assessed on admission and after 3, 6 and 12 months. Insight improved significantly over 12 months, and was negatively correlated with both positive and negative symptoms, and positively ...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/S0920-9964(03)00047-1
更新日期:2004-04-01 00:00:00
abstract::This study tests the hypothesis that deficits of spatial working memory are an inherent trait in schizophrenic patients, regardless of their clinical status. The participants were 22 chronic schizophrenic patients, 11 schizophrenic patients in remission, and 22 normal adults. All participants were asked to track the o...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/s0920-9964(01)00176-1
更新日期:2002-01-01 00:00:00
abstract::While the "clinical high-risk state" for psychosis has demonstrated good reliability and fair predictive validity for psychotic disorders, over 50% of identified subjects do not progress to psychosis. Despite the benefits that early detection and treatment might offer, debate concerning the official inclusion of a "ps...
journal_title:Schizophrenia research
pub_type: 杂志文章
doi:10.1016/j.schres.2010.03.012
更新日期:2010-07-01 00:00:00