Abstract:
:Schizophrenia is a severe neuropsychiatric disorder with familial loading as heritable risk factor and cannabis abuse as the most relevant environmental risk factor up to date. Cannabis abuse has been related to an earlier onset of the disease and persisting cannabis consumption is associated with reduced symptom improvement. However, the underlying morphological and biochemical brain alterations due to these risk factors as well as the effects of gene-environmental interaction are still unclear. In this magnetic resonance imaging (MRI) study in 47 first-episode schizophrenia patients and 30 healthy control subjects, we investigated effects of previous cannabis abuse and increased familial risk on subcortical brain regions such as hippocampus, amygdala, caudate nucleus, putamen, thalamus and subsegments of the corpus callosum (CC). In a subsequent single-volume (1)H-magnetic resonance spectroscopy study, we investigated spectra in the left hippocampus and putamen to detect metabolic alterations. Compared to healthy controls, schizophrenia patients displayed decreased volumes of the left hippocampus, bilateral amygdala and caudate nucleus as well as an increased area of the midsagittal CC1 segment of the corpus callosum. Patients fulfilling the criteria for cannabis abuse at admission showed an increased area of the CC2 segment compared to those who did not fulfill the criteria. Patients with a family history of schizophrenia combined with previous cannabis abuse showed lower volumes of the bilateral caudate nucleus compared to all other patients, implicating an interaction between the genetic background and cannabis abuse as environmental factor. Patients with cannabis abuse also had higher ratios of N-acetyl aspartate/choline in the left putamen, suggesting a possible neuroprotective effect in this area. However, antipsychotic medication prior to MRI acquisition and gender effects may have influenced our results. Future longitudinal studies in first-episode patients with quantification of cannabis abuse and assessment of schizophrenia risk genes are warranted.
journal_name
Eur Arch Psychiatry Clin Neurosciauthors
Malchow B,Hasan A,Schneider-Axmann T,Jatzko A,Gruber O,Schmitt A,Falkai P,Wobrock Tdoi
10.1007/s00406-013-0451-ysubject
Has Abstractpub_date
2013-11-01 00:00:00pages
S155-68eissn
0940-1334issn
1433-8491journal_volume
263 Suppl 2pub_type
杂志文章abstract::The role of the brain-derived neurotrophic factor (BDNF) in the pathophysiology of major depressive disorder (MDD) remains to be elucidated. Recent post hoc analyses indicated a potential association of three polymorphisms in the BDNF gene with worse treatment outcome in patients with the subtype of melancholic depres...
journal_title:European archives of psychiatry and clinical neuroscience
pub_type: 杂志文章,多中心研究
doi:10.1007/s00406-012-0364-1
更新日期:2013-08-01 00:00:00
abstract::Impairments in emotion recognition and psychosocial functioning are a robust phenomenon in schizophrenia and may affect motivational behavior, particularly during socio-emotional interactions. To characterize potential deficits and their interplay, we assessed social motivation covering various facets, such as implici...
journal_title:European archives of psychiatry and clinical neuroscience
pub_type: 杂志文章
doi:10.1007/s00406-015-0589-x
更新日期:2015-10-01 00:00:00
abstract::Although classical and atypical antipsychotics may have different neurotoxic effects, their underlying mechanisms remain to be elucidated, especially regarding neuroglial function. In the present study, we compared the atypical antipsychotic risperidone (0.01-10 μM) with the typical antipsychotic haloperidol (0.01-10 ...
journal_title:European archives of psychiatry and clinical neuroscience
pub_type: 杂志文章
doi:10.1007/s00406-009-0095-0
更新日期:2010-09-01 00:00:00
abstract::Three adult schizophrenic patients without a previous history of epilepsy are reported who, during clozapine treatment, developed paroxysmal EEG patterns and generalized myoclonic jerks without alteration of consciousness. These seizures were phenomenologically identical to those occurring in juvenile myoclonic epilep...
journal_title:European archives of psychiatry and clinical neuroscience
pub_type: 杂志文章
doi:10.1007/BF02279769
更新日期:1991-01-01 00:00:00
abstract:OBJECTIVE:Interpersonal psychotherapy (IPT) is a time-limited psychotherapy for major depression. The aim of this study is to summarize findings from controlled trials of the efficacy of IPT in the treatment of depressive spectrum disorders (DSD) using a meta-analytic approach. METHODS:Studies of randomized clinical t...
journal_title:European archives of psychiatry and clinical neuroscience
pub_type: 杂志文章,评审
doi:10.1007/s00406-004-0542-x
更新日期:2005-04-01 00:00:00
abstract::The objective of this study is to determine whether cannabis influences BDNF levels in patients with psychosis (FEP) and healthy volunteers (HV) to help understand the role of BDNF in psychosis. We assessed the association between BDNF and cannabis in a cohort of FEP antipsychotic-naïve patients and HV, whilst control...
journal_title:European archives of psychiatry and clinical neuroscience
pub_type: 杂志文章
doi:10.1007/s00406-020-01117-y
更新日期:2020-10-01 00:00:00
abstract::The purpose of this study was to investigate the relationship between specific symptom severity and D2/3 receptor availability in extrastriatal regions in outpatients with schizophrenia to shed light on the role of extrastriatal dopaminergic neurotransmission in the pathophysiology of symptoms of schizophrenia. Sixtee...
journal_title:European archives of psychiatry and clinical neuroscience
pub_type: 杂志文章
doi:10.1007/s00406-017-0821-y
更新日期:2018-09-01 00:00:00
abstract::Negative symptoms were examined in 150 primarily first-admission patients diagnosed with schizophrenia, schizoaffective disorder, psychotic depression, psychotic bipolar disorder, and 'other' psychoses. The analysis focused on patients who were rated on the Scale for the Assessment of Negative Symptoms (SANS) within 4...
journal_title:European archives of psychiatry and clinical neuroscience
pub_type: 临床试验,杂志文章
doi:10.1007/BF02274895
更新日期:1996-01-01 00:00:00
abstract::To date, few studies have addressed the relationship between brain structure alterations and responses to atypical antipsychotics in schizophrenia. To this end, in this study, magnetic resonance imaging (MRI) and voxel-based morphometry (VBM) were used to assess the relationship between the brain volumes of gray (GM) ...
journal_title:European archives of psychiatry and clinical neuroscience
pub_type: 杂志文章
doi:10.1007/s00406-010-0182-2
更新日期:2011-09-01 00:00:00
abstract::A follow-up and family study was carried out of 16 first episode, DSM-III-R schizophreniform disorder patients with good prognostic features. Mean length of follow-up was 52.3 months. It was found that 62.5% had affective episodes, 31.2% had schizophreniform episodes. No case of schizophrenia was observed. Outcome was...
journal_title:European archives of psychiatry and clinical neuroscience
pub_type: 杂志文章
doi:10.1007/BF02191558
更新日期:1992-01-01 00:00:00
abstract::Neurofunctional mechanisms underlying cognitive behavior therapy (CBT) are still not clearly understood. This functional magnetic resonance imaging (fMRI) study focused on changes in brain activation as a result of one-session CBT in patients suffering from spider phobia. Twenty-six female spider phobics and 25 non-ph...
journal_title:European archives of psychiatry and clinical neuroscience
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00406-007-0754-y
更新日期:2007-12-01 00:00:00
abstract:OBJECTIVE:This exploratory study aims to compare lifetime psychiatric axis-I-comorbidity and psychosocial functioning in a clinically referred sample of adult patients with attention-deficit/hyperactivity disorder (ADHD) with a population-based healthy control group and to examine whether patients with ADHD and lifetim...
journal_title:European archives of psychiatry and clinical neuroscience
pub_type: 杂志文章
doi:10.1007/s00406-007-0712-8
更新日期:2007-10-01 00:00:00
abstract::Sustainable observations suggest that suicidal behaviour by itself may have biological correlates, among which those related to the serotonergic synapse hold the key position. Based on the association of suicide and serotonergic dysfunction, it was proposed that genetic mechanisms affecting suicidal behaviour could be...
journal_title:European archives of psychiatry and clinical neuroscience
pub_type: 杂志文章
doi:10.1007/s00406-004-0482-5
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abstract::Minority religions, sects and cults are an increasingly common socio-cultural phenomenon, of which the effects concerning mental health and illness are still poorly understood. In the present study, we compared socio-demographical and clinical characteristics between members of Christian sects and the remaining genera...
journal_title:European archives of psychiatry and clinical neuroscience
pub_type: 杂志文章
doi:10.1007/BF02191523
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abstract::Thirty inpatients with somatoform disorders were examined with the structured clinical interview SCID for psychiatric lifetime diagnosis. In the present diagnoses, we found a concordance of 63% for somatoform and affective disorders and the lifetime comorbidity of both disorders was 87%. Additionally, patients with so...
journal_title:European archives of psychiatry and clinical neuroscience
pub_type: 杂志文章
doi:10.1007/BF02190259
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journal_title:European archives of psychiatry and clinical neuroscience
pub_type: 杂志文章
doi:10.1007/s00406-016-0700-y
更新日期:2016-10-01 00:00:00
abstract::The effect of comorbidity on rates of suicidal ideation and suicide attempts from an adult general population of former West Germany is investigated. The assessment instrument is a modified German version of the Diagnostic Interview Schedule (DIS), a fully standardized interview for the assessment of selected DSM-III ...
journal_title:European archives of psychiatry and clinical neuroscience
pub_type: 杂志文章
doi:10.1007/BF02193525
更新日期:1994-01-01 00:00:00
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journal_title:European archives of psychiatry and clinical neuroscience
pub_type: 杂志文章
doi:10.1007/s00406-006-0676-0
更新日期:2007-02-01 00:00:00
abstract:PURPOSE:Mental health is one of the priorities of the European Commission. Studies of the use and cost of mental health facilities are needed in order to improve the planning and efficiey of mental health resources. We analyze the patterns of mental health service use in multiple clinical settings to identify factors a...
journal_title:European archives of psychiatry and clinical neuroscience
pub_type: 杂志文章
doi:10.1007/s00406-007-0763-x
更新日期:2008-03-01 00:00:00
abstract::Intravascular lymphomatosis (IVL), a rare type of non-Hodgkin's lymphoma, is an uncommon cause of progressive dementia, usually followed by death within a few months of onset of clinical disease. Often this aggressive tumor is only diagnosed at autopsy, because of misleading clinical features mimicking a broad spectru...
journal_title:European archives of psychiatry and clinical neuroscience
pub_type: 杂志文章
doi:10.1007/s00406-004-0551-9
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abstract::The aim of this study was to reexamine and compare the characteristics of the deficit and nondeficit schizophrenic patients. This cross-sectional study consisted of 62 in- and out-patients, 18-65 years of age, diagnosed with schizophrenia according to DSM-IV. The sociodemographic variables, premorbid adjustment, clini...
journal_title:European archives of psychiatry and clinical neuroscience
pub_type: 杂志文章
doi:10.1007/s00406-003-0434-5
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journal_title:European archives of psychiatry and clinical neuroscience
pub_type: 杂志文章,评审
doi:10.1007/s004060050014
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abstract::The excitatory amino acid glutamate plays an important role in the mammalian CNS. Studies conducted from 1940 to 1950 suggested that oral administration of glutamate could have a beneficial effect on normal and retardate intelligence. The neurotoxic nature of glutamate resulting in excitotoxic lesions (neuronal death)...
journal_title:European archives of psychiatry and clinical neuroscience
pub_type: 杂志文章,评审
doi:10.1007/BF02189982
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abstract::Severe psychiatric disorders such as schizophrenia are related to cognitive and negative symptoms, which often are resistant to current treatment approaches. The glutamatergic system has been implicated in the pathophysiology of schizophrenia and affective disorders. A key component is the dysfunction of the glutamate...
journal_title:European archives of psychiatry and clinical neuroscience
pub_type: 杂志文章,评审
doi:10.1007/s00406-013-0399-y
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journal_title:European archives of psychiatry and clinical neuroscience
pub_type: 杂志文章
doi:10.1007/s00406-011-0282-7
更新日期:2012-08-01 00:00:00
abstract::Various factors contribute to the development and maintenance of delusions in the context of schizophrenic psychoses. Studies with functional and structural MRI were able to detect neurobiological correlates of paranoid symptoms. Consistent with the neurodevelopmental hypothesis of schizophrenic psychosis, which impli...
journal_title:European archives of psychiatry and clinical neuroscience
pub_type: 杂志文章,评审
doi:10.1007/s00406-008-5008-0
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abstract::Abnormalities of the cerebellum and default-mode network (DMN) in patients with obsessive-compulsive disorder (OCD) have been widely reported. However, alterations of reciprocal functional connections between the cerebellum and DMN at rest in OCD remain unclear. Forty patients with OCD and 38 gender-, age-, and educat...
journal_title:European archives of psychiatry and clinical neuroscience
pub_type: 杂志文章
doi:10.1007/s00406-019-01070-5
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journal_title:European archives of psychiatry and clinical neuroscience
pub_type: 杂志文章,评审
doi:10.1007/s004060170036
更新日期:2001-08-01 00:00:00
abstract::The alpha 1C subunit of the L-type voltage-gated calcium channel (CACNA1C) gene is one of the best replicated susceptibility loci for bipolar disorder, schizophrenia and major depression. It is involved in learning, memory and brain plasticity. Genetic studies using functional magnetic resonance imaging (fMRI) reporte...
journal_title:European archives of psychiatry and clinical neuroscience
pub_type: 杂志文章
doi:10.1007/s00406-013-0428-x
更新日期:2014-03-01 00:00:00
abstract:OBJECTIVE:We tested Kraepelin's dichotomy model by studying the separability of schizophrenia and depression on the basis of symptoms and illness course. MATERIALS AND METHODS:Matched untreated patients with schizophrenia and depression (n = 130 each) and 130 "healthy" controls were assessed from onset to first admiss...
journal_title:European archives of psychiatry and clinical neuroscience
pub_type: 杂志文章
doi:10.1007/s00406-008-2011-4
更新日期:2008-06-01 00:00:00