Abstract：
:Cerebrospinal fluid (CSF) measures of dynorphin A were compared in three groups. Alzheimer patients (n = 9), elderly depressives (n = 9), and age-matched normal controls (n = 9). The Alzheimer patients revealed a 40% decrease in CSF dynorphin compared with controls (36 +/- 15 versus 60 +/- 21 pg/ml, p less than 0.05). In contrast, other peptide measures [Neuropeptide Y (NPY), vasoactive intestinal peptide (VIP), and galanin] remained unchanged across groups. This finding was further supported when an additional 20 Alzheimer patients with similar clinical backgrounds also showed reduced CSF dynorphin (37 +/- 13 pg/ml). CSF dynorphin did not correlate significantly with clinical variables or other CSF measures of monoamine metabolites [i.e., 3-methoxy-4-hydroxyphenylglycol (MHPG), 5-hydroxyindoleacetic acid (5-HIAA), and homovanillic acid (HVA)]. Given the previous report of increased kappa binding of Alzheimer brains at autopsy, the authors speculate about a possible up-regulation of opiate receptors in Alzheimer's disease and suggest ways to test this hypothesis in vivo.
journal_name
Biol Psychiatryjournal_title
Biological psychiatryauthors
Sunderland T,Berrettini WH,Molchan SE,Lawlor BA,Martinez RA,Vitiello B,Tariot PN,Cohen RMdoi
10.1016/0006-3223(91)90073-usubject
Has Abstractpub_date
1991-07-01 00:00:00pages
81-7issue
1eissn
0006-3223issn
1873-2402pii
0006-3223(91)90073-Ujournal_volume
30pub_type
杂志文章abstract：BACKGROUND:Although neuropsychological and neuroimaging studies of obsessive-compulsive disorder (OCD) have implicated the frontal cortex and subcortical structures in the pathophysiology of the disorder, few studies have examined cognitive function in patients with OCD on tasks validated in the assessment of frontal l...
journal_title：Biological psychiatry
pub_type： 临床试验,杂志文章
doi：10.1016/s0006-3223(97)00201-1
更新日期：1998-03-01 00:00:00
abstract：BACKGROUND:Prenatal inflammatory mechanisms may play a role in the pathogenesis of psychiatric disorders and could be relevant for attention-deficit/hyperactivity disorder (ADHD). We investigated maternal chronic somatic diseases with immune components as possible risk factors for ADHD in offspring. METHODS:We perform...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2015.11.024
更新日期：2017-03-01 00:00:00
abstract：BACKGROUND:Patients with autism show clinical features suggestive of abnormal processing of auditory and other sensory information. We hypothesized that low-functioning autistic subjects present abnormalities in discriminating simple auditory stimuli at sensory system preconscious stages of cortical processing. METHOD...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/s0006-3223(03)00295-6
更新日期：2003-09-15 00:00:00
abstract：:Primary depressive illness comprises a wide variety of clinical presentations which may represent disorders with different underlying biology, life course, and treatment response. In order to explore possible correlates of such clinical heterogeneity, we have constructed a rating scale for atypical depressive illness....
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：
更新日期：1982-03-01 00:00:00
abstract：:An early-onset, familial form of Alzheimer's disease (AD) has been reported to be linked to a locus on the long arm of chromosome 21 (21q21). Furthermore, duplications in the vicinity of this locus involving the beta-amyloid gene and the proto-oncogene ets-2 have been reported in association with AD. The structural ge...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(89)90236-9
更新日期：1989-03-15 00:00:00
abstract：:Sixty-five cocaine-dependent subjects were enrolled into a 10-week randomized, double-blind study to determine the safety and efficacy of the serotonin-2 receptor antagonist, ritanserin (10 mg/day), in reducing cocaine consumption and craving. All subjects also participated in a structured intensive outpatient psychos...
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(96)00490-8
更新日期：1997-11-15 00:00:00
abstract：BACKGROUND:Altered expression of serotonin-1A (5-HT1A) receptors, both presynaptic in the raphe nuclei and post-synaptic in limbic and cortical target areas, has been implicated in mood disorders such as major depression and anxiety. Within the 5-HT1A receptor gene, a powerful dual repressor element (DRE) is regulated ...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2009.02.033
更新日期：2009-08-01 00:00:00
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:Although intimate partner violence (IPV) has a great impact on women's health, few studies have assessed the consequences on physiologic responses. METHODS:Women abused by their intimate male partners either physically (n = 70) or psychologically (n = 46) were compared with nonabused control women (n = 46)....
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2004.06.001
更新日期：2004-08-15 00:00:00
abstract：:Previous studies have demonstrated blunted beta-adrenergic responsivity in leukocytes from depressed patients. We sought to determine if this blunted cyclic adenosine monophosphate (AMP) response is specific for beta-adrenergic receptors (homologous), or whether other adenylyl cyclase-coupled receptors are also involv...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/S0006-3223(97)00154-6
更新日期：1997-11-15 00:00:00
abstract：:Conditioned responses to drug-related cues appear to be related to the maintenance of stimulant addiction. These conditioned responses are not blocked by treatments that block the direct effects of stimulants and may contribute to the high rate of relapse of addicts. Rats administered (+)-amphetamine in a specific env...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(92)90159-w
更新日期：1992-06-01 00:00:00
abstract：BACKGROUND:Monoamine dysfunction, particularly of the serotonin system, has been the dominant hypothesis guiding research and treatment development in affective disorders. The majority of research has been performed in midlife depressed adults. The importance of understanding the neurobiology of depression in older adu...
journal_title：Biological psychiatry
pub_type： 临床试验,杂志文章
doi：10.1016/j.biopsych.2009.02.012
更新日期：2009-08-01 00:00:00
abstract：BACKGROUND:The 5HTTLPR genetic variant of the serotonin transporter (SERT), which consists of a long (SERT-l) and short (SERT-s) allele, has emerged as a major factor influencing emotional behavior and brain anatomy. The pulvinar nucleus of the thalamus projects to important limbic nuclei including the amygdala and cin...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2006.08.047
更新日期：2007-03-15 00:00:00
abstract：BACKGROUND:Sensitivity to reward has been implicated as a predisposing factor for behaviors related to drug abuse as well as overeating. However, the underlying mechanisms contributing to reward sensitivity are unknown. We hypothesized that a dysregulation in dopamine signaling might be an underlying cause of heightene...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2008.06.007
更新日期：2008-12-01 00:00:00
abstract：BACKGROUND:Fine motor skill impairments are common in autism spectrum disorder (ASD), significantly affecting quality of life. Sensory inputs reaching the primary motor cortex (M1) from the somatosensory cortex (S1) are likely involved in fine motor skill and specifically motor learning. However, the role of these conn...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2016.06.020
更新日期：2017-02-01 00:00:00
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 ...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(87)90052-7
更新日期：1987-09-01 00:00:00
abstract：BACKGROUND:Down syndrome (DS) is a genetic disorder (trisomy 21 in 96% of cases), associated with an excess of a key enzyme involved with free radical metabolism (FRM), superoxide dismutase-1 (SOD-1), that is encoded by a gene on chromosome 21. Consequently, SOD-1 activity is elevated in DS, which also occurs in condit...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/s0006-3223(99)00026-8
更新日期：1999-12-15 00:00:00
abstract：:Several findings support the hypothesis that the striatum is implicated in executive functions and in the modulation of goal-directed behavior, and could play a key role in the pathophysiology and in the production of symptoms and signs in schizophrenia. We have studied the relationship between the objective measures ...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/s0006-3223(97)00017-6
更新日期：1997-11-01 00:00:00
abstract：:Associations between cannabis use and psychotic outcomes are consistently reported, but establishing causality from observational designs can be problematic. We review the evidence from longitudinal studies that have examined this relationship and discuss the epidemiologic evidence for and against interpreting the fin...
journal_title：Biological psychiatry
pub_type： 杂志文章,评审
doi：10.1016/j.biopsych.2015.08.001
更新日期：2016-04-01 00:00:00
abstract：BACKGROUND:Stimulation of alpha(2)-adrenergic receptors (alpha(2)-ARs) in the prefrontal cortex (PFC) has a beneficial effect on working memory and attentional regulation in monkeys. alpha(2)-adrenergic agonists like clonidine and guanfacine have been used experimentally and clinically for the treatment of attention de...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2004.11.004
更新日期：2005-01-15 00:00:00
abstract：:The present study was undertaken to investigate if acute anxiety can affect plasma concentrations of homovanillic acid (pHVA). Since elevated pHVA levels have been associated with severity of schizophrenic symptoms, the results of this study will help determine if the pHVA elevations are directly related to psychosis ...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(95)00390-8
更新日期：1996-08-15 00:00:00
abstract：BACKGROUND:Vagus nerve stimulation (VNS) has shown promising antidepressant effects in treatment-resistant depression, but the mechanisms of action are not known. Cerebrospinal fluid (CSF) studies in epilepsy patients show that VNS alters concentrations of monamines and gamma-aminobutyric acid (GABA), neurotransmitter ...
journal_title：Biological psychiatry
pub_type： 临床试验,杂志文章
doi：10.1016/j.biopsych.2004.06.025
更新日期：2004-09-15 00:00:00
abstract：:A broad definition of sensory gating refers to the ability of the brain to modulate its sensitivity to incoming sensory stimuli. This definition allows the concept of gating to include both the capacities to minimize or stop responding to incoming irrelevant stimuli (gating out) and to respond when a novel stimulus is...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/s0006-3223(98)00253-4
更新日期：1999-04-01 00:00:00
abstract：BACKGROUND:Several lines of evidence suggest the presence of abnormalities in the endocannabinoid (eCB) system in schizophrenia (SCZ). However, there are limited in vivo measures of the eCB system in SCZ. METHODS:Twenty five male SCZ subjects (SCZs) (18 antipsychotic treated and 7 antipsychotic free) were compared wit...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2015.08.021
更新日期：2016-06-15 00:00:00
abstract：BACKGROUND:Recent studies have suggested that there may be a preferential decrease of "nonpyramidal" neurons (NPs) in several corticolimbic regions of schizophrenic (SZ) brain. The current study was undertaken to determine whether a change in the density of pyramidal neurons (PNs) and NPs might be present in the hippoc...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/s0006-3223(98)00138-3
更新日期：1998-07-15 00:00:00
abstract：BACKGROUND:The ability to stop a suboptimal response is integral to decision making and is commonly impaired across psychiatric disorders. Cortical paired associative stimulation (cPAS) is a form of transcranial magnetic stimulation in which paired pulses can induce plasticity at cortical synapses. Here we used cPAS pr...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2018.03.009
更新日期：2019-02-15 00:00:00
abstract：BACKGROUND:Benzodiazepines modulate γ-aminobutyric acid type A (GABA(A)) receptors throughout the brain. However, it is not fully understood which brain regions within anxiety-related brain circuits are really responsible for their anxiolytic effects and how these regions interact. METHODS:We investigated whether the ...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2012.09.004
更新日期：2013-02-15 00:00:00
abstract：BACKGROUND:The amplitude of the auditory P3 event-related potential is reduced in patients with axes I and II disorders. Data regarding P3 amplitude and normal personality traits in healthy individuals have been inconsistent, however, although more extreme variants of dimensional traits such as neuroticism and extraver...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/s0006-3223(00)01067-2
更新日期：2001-06-01 00:00:00
abstract：:Both genetic and environmental factors have been associated with an increased risk for schizophrenia. These factors are not mutually exclusive; a single gene can be a genetic factor (due to a mutation in the gene sequence) and a target of a physiological response to an environmental stimulus, both with the common endp...
journal_title：Biological psychiatry
pub_type： 杂志文章,评审
doi：10.1016/j.biopsych.2006.04.028
更新日期：2006-09-15 00:00:00
abstract：:The levels of the synaptic vesicle-associated proteins, synapsin and synaptophysin, were examined in human postmortem hippocampus from the brains of schizophrenics and age-matched controls using a quantitative western blot analysis. The schizophrenic samples had significantly lower levels of synapsin I than controls. ...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(93)90195-j
更新日期：1993-10-15 00:00:00
