Abstract:
:Acetylcholinesterase (AChE) from erythrocytes was solubilized by Triton X-100. Size and charge heterogeneity of AChE was investigated by polyacrylamide gel electrophoresis (PAGE) and isoelectric focusing (IEF) in polyacrylamide gels in the presence of 0.5% (v/v) Triton X-100. There were no interindividual differences in these parameters in 46 psychiatric patients (schizophrenia, major affective disorder, personality disorder, dependency, dementia) and controls. The specific activity of solubilized AChE did not discriminate between controls and patients or between the diagnostic subgroups.
journal_name
Biol Psychiatryjournal_title
Biological psychiatryauthors
Fritze J,Beckmann Hdoi
10.1016/0006-3223(87)90052-7subject
Has Abstractpub_date
1987-09-01 00:00:00pages
1097-106issue
9eissn
0006-3223issn
1873-2402pii
0006-3223(87)90052-7journal_volume
22pub_type
杂志文章abstract:BACKGROUND:Chronic social defeat stress (CSDS) produces persistent behavioral adaptations in mice. In many behavioral assays, it can be difficult to determine if these adaptations reflect core signs of depression. We designed studies to characterize the effects of CSDS on sensitivity to reward because anhedonia (reduce...
journal_title:Biological psychiatry
pub_type: 杂志文章
doi:10.1016/j.biopsych.2013.12.014
更新日期:2014-10-01 00:00:00
abstract:BACKGROUND:The study assessed the efficacy and tolerability of the selective serotonin reuptake inhibitor (SSRI) fluvoxamine in the treatment of pathologic gambling (PG). METHODS:A 16-week randomized double-blind crossover design insured that each subject received 8 weeks of fluvoxamine and 8 weeks of a placebo. Fifte...
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(00)00241-9
更新日期:2000-05-01 00:00:00
abstract::As many patients still require maintenance neuroleptic medication, it is important to determine what factors affect the course of tardive dyskinesia (TD) during ongoing neuroleptic treatment. In this study the data are from a series of annual examinations using the Abnormal Involuntary Movement Scale (AIMS) in a cohor...
journal_title:Biological psychiatry
pub_type: 杂志文章
doi:10.1016/0006-3223(92)90071-7
更新日期:1992-10-01 00:00:00
abstract:BACKGROUND:The stomach-derived hormone ghrelin drives higher-order feeding processes related to food reward and food seeking via central nervous system signaling at its receptor (GHSR1A). The specific nuclei mediating these effects are only partially understood. Here, we use a rat model to examine whether ghrelin signa...
journal_title:Biological psychiatry
pub_type: 杂志文章
doi:10.1016/j.biopsych.2012.07.002
更新日期:2013-05-01 00:00:00
abstract:BACKGROUND:A variety of immunologic alterations have been observed in patients with schizophrenia. These findings have lent support to theories that autoimmune mechanisms may be important in some patients with the illness. The CD5+ B lymphocyte, a B-cell subset associated with autoimmune disease, has been the subject o...
journal_title:Biological psychiatry
pub_type: 杂志文章
doi:10.1016/s0006-3223(98)00307-2
更新日期:1999-07-01 00:00:00
abstract:BACKGROUND:Chronic life stress, such as the stress of caregiving, can promote pathophysiology, but the underlying cellular mechanisms are not well understood. Chronic stress may induce recalibrations in mitochondria leading to changes either in mitochondrial content per cell, or in mitochondrial functional capacity (i....
journal_title:Biological psychiatry
pub_type: 杂志文章
doi:10.1016/j.biopsych.2018.01.012
更新日期:2018-07-01 00:00:00
abstract:BACKGROUND:The etiology of dementia that occurs in patients with schizophrenia is not well understood. Nicotinic acetylcholine receptors have been implicated in cognitive function, and deficits in these receptors have been reported in schizophrenia. METHODS:The present study investigates possible associations of nicot...
journal_title:Biological psychiatry
pub_type: 杂志文章
doi:10.1016/s0006-3223(03)00348-2
更新日期:2003-12-01 00:00:00
abstract:BACKGROUND:Relations between stress hormones and antisocial behavior are understudied. METHODS:A subsample (n = 335) of at-risk males recruited in first grade for a longitudinal study were recruited at approximately 16 years of age for a laboratory study, including two psychological challenges: describing their worst ...
journal_title:Biological psychiatry
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/j.biopsych.2005.01.041
更新日期:2005-05-15 00:00:00
abstract:BACKGROUND:The cognitive deficits of schizophrenia are largely resistant to current treatments and thus are a lifelong illness burden. The Measurement and Treatment Research to Improve Cognition in Schizophrenia (MATRICS) Consensus Cognitive Battery (MCCB) provides a reliable and valid assessment of cognition across ma...
journal_title:Biological psychiatry
pub_type: 杂志文章
doi:10.1016/j.biopsych.2015.02.017
更新日期:2015-12-01 00:00:00
abstract::It has been nearly 30 years since Dr. David Barker first highlighted the importance of prenatal factors in contributing to the developmental origins of adult disease. This concept was later broadened to include postnatal events. It is clear that the interaction between genetic predisposition and early life environment...
journal_title:Biological psychiatry
pub_type: 杂志文章,评审
doi:10.1016/j.biopsych.2018.06.014
更新日期:2019-01-15 00:00:00
abstract:BACKGROUND:A large number of studies suggest the presence of deficits in dorsolateral prefrontal cortex function during performance of working memory tasks in individuals with schizophrenia. However, working memory deficits may also present in other psychiatric disorders, such as major depression. It is not clear wheth...
journal_title:Biological psychiatry
pub_type: 杂志文章
doi:10.1016/s0006-3223(02)01674-8
更新日期:2003-03-01 00:00:00
abstract:BACKGROUND:In view of the effects of stress on synaptic plasticity, the regulation of synaptophysin and synaptotagmin expression by immobilization was analyzed by in situ hybridization. METHODS:Rats were exposed to immobilization stress, which induced typical behavioral alterations, such as reduced locomotor activity ...
journal_title:Biological psychiatry
pub_type: 杂志文章
doi:10.1016/s0006-3223(01)01229-x
更新日期:2001-11-15 00:00:00
abstract:BACKGROUND:Nicotine is highly addictive when it is inhaled from tobacco smoke, whereas nicotine replacement products, which usually deliver nicotine orally or transdermally, rarely lead to addiction. It has been proposed that this is due in part to differences in the rate of nicotine delivery to the brain under the two...
journal_title:Biological psychiatry
pub_type: 杂志文章
doi:10.1016/j.biopsych.2004.11.040
更新日期:2005-02-15 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::The subjective sleep disturbance in posttraumatic stress disorder (PTSD), including the repetitive, stereotypical anxiety dream, suggests dysfunctional rapid eye movement (REM) sleep mechanisms. The polysomnograms of a group of physically healthy combat veterans with current PTSD were compared with those of an age-app...
journal_title:Biological psychiatry
pub_type: 杂志文章
doi:10.1016/0006-3223(94)91152-5
更新日期:1994-02-01 00:00:00
abstract::Benzodiazepines, the most widely prescribed psychotropic drugs, are often used in patients with depressive disorders, either alone or in combination with standard antidepressants. This review evaluates the efficacy of benzodiazepines (alprazolam, diazepam, chlordiazepoxide) as established in acute-phase, randomized co...
journal_title:Biological psychiatry
pub_type: 杂志文章,meta分析
doi:10.1016/0006-3223(95)00049-7
更新日期:1995-11-01 00:00:00
abstract:BACKGROUND:The McLean-Harvard First-Episode Project recruited affective and nonaffective patients at their first lifetime psychiatric hospitalization. METHODS:Baseline evaluation and 6-month follow-up in 257 cases yielded recovery outcomes defined by syndromal (absence of DSM-IV criteria for a current episode) and fun...
journal_title:Biological psychiatry
pub_type: 杂志文章
doi:10.1016/s0006-3223(00)00915-x
更新日期:2000-09-15 00:00:00
abstract:BACKGROUND:Current neuroimaging perspectives on a variety of mental disorders emphasize dysfunction of the amygdala. The neuropeptide oxytocin (OXT), a key mediator in the regulation of social cognition and behavior, accumulates in cerebrospinal fluid after intranasal administration in macaques and humans and modulates...
journal_title:Biological psychiatry
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.biopsych.2017.04.015
更新日期:2017-12-15 00:00:00
abstract:BACKGROUND:Reinforcement of behavioral responses involves a complex cerebral circuit engaging specific neuronal networks that are modulated by cortical oversight systems affiliated with emotion, memory, judgment, and decision making (collectively referred to in this study as the "extended reward and oversight system" o...
journal_title:Biological psychiatry
pub_type: 杂志文章
doi:10.1016/j.biopsych.2008.01.018
更新日期:2008-08-01 00:00:00
abstract::This report describes a series of experiments, all of which demonstrate a strong contribution of the behavioral pattern manifested at the time of initial amphetamine injection to the topography and development of the stereotypy that develops with chronic amphetamine intoxication. These initial behavioral patterns refl...
journal_title:Biological psychiatry
pub_type: 杂志文章
doi:
更新日期:1975-02-01 00:00:00
abstract::The total number of neurons was estimated in eight brains from chronic schizophrenic men and compared with 16 gender- and age-matched controls. The average total neocortical nerve cell number was 22.12.10(9) in schizophrenics and 22.06.10(9) in controls. The estimate of total cell numbers can not demonstrate more subt...
journal_title:Biological psychiatry
pub_type: 杂志文章
doi:10.1016/0006-3223(93)90065-l
更新日期:1993-12-01 00:00:00
abstract:BACKGROUND:Current pathophysiologic models of attention-deficit/hyperactivity disorder (ADHD) suggest that impaired functional connectivity within brain attention networks may contribute to the disorder. In this electroencephalographic (EEG) study, we analyzed cross-frequency amplitude correlations to investigate diffe...
journal_title:Biological psychiatry
pub_type: 杂志文章
doi:10.1016/j.biopsych.2009.11.022
更新日期:2010-04-01 00:00:00
abstract:BACKGROUND:The endocannabinoid and neurosteroid systems regulate emotions and stress responses. Activation of peroxisome proliferator-activated receptor (PPAR)-α by the endocannabinoid congener N-palmitoylethanolamine (PEA) regulates pathophysiological systems (e.g., inflammation, oxidative stress) and induces peripher...
journal_title:Biological psychiatry
pub_type: 杂志文章
doi:10.1016/j.biopsych.2019.02.006
更新日期:2019-06-15 00:00:00
abstract::The cortisol response to ipsapirone (a 5-HT1A-partial agonist that produces a dose-dependent increase in plasma cortisol secretion in man) is blunted in major depression. Buspirone is another 5-HT1A agonist that increases cortisol secretion in man. This study investigated cortisol and prolactin (PRL) responses to busp...
journal_title:Biological psychiatry
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/0006-3223(94)90035-3
更新日期:1994-03-01 00:00:00
abstract::The authors examined thyrotropin-releasing hormone (TRH) stimulation testing in the neuroendocrine evaluation of DSM-III major depressive disorder in 26 consecutive medication-free, medically healthy patients meeting a primary DSM-III diagnosis of axis II personality disorder. Thyroid-stimulating hormone (TSH) respons...
journal_title:Biological psychiatry
pub_type: 杂志文章
doi:10.1016/0006-3223(93)90077-q
更新日期:1993-08-15 00:00:00
abstract:BACKGROUND:Since low serum iron has been reported in a variety of neuropsychiatric motor disorders, this study was conducted to examine serum iron in patients with a catatonic disorder. METHODS:Forty catatonic and 40 noncatatonic psychotic patients were studied in relation to serum iron levels. The association of seru...
journal_title:Biological psychiatry
pub_type: 杂志文章
doi:10.1016/s0006-3223(98)00137-1
更新日期:1999-03-15 00:00:00
abstract:BACKGROUND:Autism spectrum disorder and attention-deficit/hyperactivity disorder (ADHD) are associated with complex changes as revealed by functional magnetic resonance imaging. To date, neuroimaging-based models are not able to characterize individuals with sufficient sensitivity and specificity. Further, although evi...
journal_title:Biological psychiatry
pub_type: 杂志文章
doi:10.1016/j.biopsych.2019.02.019
更新日期:2019-08-15 00:00:00
abstract::We examined the relationship between low birth weight (LBW) (< or = 2500 g) and specific neurocognitive abilities at 6 years of age in a large-scale nonconcurrent prospective study. In 1990-1992, we randomly selected and evaluated LBW and normal birth weight (NBW) children from the 1983-1985 newborn lists of two major...
journal_title:Biological psychiatry
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/0006-3223(95)00399-1
更新日期:1996-09-01 00:00:00
abstract:BACKGROUND:Previous magnetic resonance imaging (MRI) studies indicate that compared with healthy volunteers, patients with bipolar disorder have structural and functional abnormalities in the prefrontal cortex. The aim of this study was to investigate differences in prefrontal subregions between bipolar patients and he...
journal_title:Biological psychiatry
pub_type: 杂志文章
doi:10.1016/s0006-3223(02)01350-1
更新日期:2002-07-15 00:00:00
abstract:BACKGROUND:Schizophrenia (SCZ) is a neurodevelopmental disorder with a progressive, prolonged course. Early prevention for SCZ is promising but overall lacks support from preclinical evidence. Previous studies have tested environmental enrichment (EE) in certain models of SCZ and discovered a broadly beneficial effect ...
journal_title:Biological psychiatry
pub_type: 杂志文章
doi:10.1016/j.biopsych.2020.09.023
更新日期:2021-02-01 00:00:00