Abstract：
BACKGROUND:Schizophrenics show deficits in sensorimotor gating, as measured by prepulse inhibition of acoustic startle (PPI). The goal of this investigation is to further characterize PPI and habituation deficits in schizophrenia, and to examine whether differing subgroups of schizophrenics would show comparable PPI deficits. METHODS:PPI was measured in 24 male schizophrenic subjects (9 acutely decompensated inpatients and 15 stable outpatients) and in 20 age-matched normal control subjects. Schizophrenic subjects were rated for positive and negative symptoms at the time of testing. RESULTS:Schizophrenic subjects showed deficits in prepulse inhibition and habituation as compared to normal subjects. Similar latency facilitation was produced by the prepulse in both groups. Acutely decompensated inpatients and stable outpatients did not differ in percent PPI. PPI did not correlate with severity of positive or negative symptoms. CONCLUSIONS:These results suggest that schizophrenic subjects have impaired central inhibitory mechanisms as measured by PPI, and support the hypothesis that periods of relative clinical remission are not accompanied by normalization of sensorimotor gating.
journal_name
Biol Psychiatryjournal_title
Biological psychiatryauthors
Parwani A,Duncan EJ,Bartlett E,Madonick SH,Efferen TR,Rajan R,Sanfilipo M,Chappell PB,Chakravorty S,Gonzenbach S,Ko GN,Rotrosen JPdoi
10.1016/s0006-3223(99)00148-1subject
Has Abstractpub_date
2000-04-01 00:00:00pages
662-9issue
7eissn
0006-3223issn
1873-2402pii
S0006-3223(99)00148-1journal_volume
47pub_type
杂志文章abstract：:Natural lithium (Li) salts, including those used routinely in manic depressive illness, consist of two stable nonradioactive isotopes: lithium-7 (Li-7) (92.6%) and lithium-6 (Li-6) (7.4%). Female rats (3 months old) were treated with either Li-7 chloride or Li-6 chloride or were untreated prior to and during gestation...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(86)90308-2
更新日期：1986-11-01 00:00:00
abstract：:This study is designed to measure effects of serotonin 1A (5-HT1A) agonists on escape deficits produced by inescapable shock in rats--a model of learned helplessness. Rats were first exposed to 60 inescapable shocks (15-sec duration, 0.8 mA, every 1 min +/- 15 sec), and 48 hr later, they were subjected to daily 15-min...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(88)90034-0
更新日期：1988-02-01 00:00:00
abstract：:Event-related potentials (ERPs) and electrodermal activity were studied in 14 medicated schizophrenics, 17 unmedicated schizophrenics, and 23 age- and education-matched controls. Subjects were run in three auditory stimulus paradigms differing from the usual ERP paradigms in having interstimulus intervals greater than...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(91)90094-3
更新日期：1991-03-15 00:00:00
abstract：BACKGROUND:Psychological stress and trauma are risk factors for several medical and psychiatric illnesses. Recent studies have implicated advanced cellular aging as a potential mechanism of this association. Telomeres, DNA repeats that cap the ends of chromosomes and promote stability, shorten progressively with each c...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2009.08.014
更新日期：2010-03-15 00:00:00
abstract：BACKGROUND:Previous studies have shown that cocaine abusers have cerebral perfusion deficits that may diminish cognitive functioning. This study examined whether cocaine-dependent patients have perfusion abnormalities associated with poor decision-making ability as measured by the Iowa Gambling Task (IGT). METHODS:Sev...
journal_title：Biological psychiatry
pub_type： 临床试验,杂志文章
doi：10.1016/j.biopsych.2004.06.031
更新日期：2004-10-01 00:00:00
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)....
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(91)90073-u
更新日期：1991-07-01 00:00:00
abstract：:Platelet MAO activity in schizophrenics was significantly decreased, by about 15%, after 3 weeks of treatment with haloperidol. Treatment with thioridazine or butaperazine also tended to decrease platelet MAO activity. The neuroleptic-induced decrease began to appear within a few days of treatment and did not show tol...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：
更新日期：1982-08-01 00:00:00
abstract：:Methysergide a clinically used blocker of serotonin receptors, was given for 48 hr to 11 normal adults, at a dose of 8 mg per 24 hr. Total REM sleep time was decreased, although total sleep time was unchanged. Stage 4 decreased and stage 3 increased, while total slow wave sleep remained constant. There was a tendency ...
journal_title：Biological psychiatry
pub_type： 临床试验,杂志文章
doi：
更新日期：1975-08-01 00:00:00
abstract：BACKGROUND:Suvorexant is an orexin receptor antagonist for treatment of insomnia. We report results from two pivotal phase 3 trials. METHODS:Two randomized, double-blind, placebo-controlled, parallel-group, 3-month trials in nonelderly (18-64 years) and elderly (≥65 years) patients with insomnia. Suvorexant doses of 4...
journal_title：Biological psychiatry
pub_type： 杂志文章,多中心研究,随机对照试验
doi：10.1016/j.biopsych.2014.10.003
更新日期：2016-01-15 00:00:00
abstract：BACKGROUND:Recent research has demonstrated that clinical depression can emerge as early as the preschool period. Here, we examine brain function in children with a history of preschool-onset depression (PO-MDD) in comparison with healthy children. METHODS:Participants were medication naïve school-aged children (ages ...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2012.06.009
更新日期：2012-12-15 00:00:00
abstract：:Unmedicated chronic schizophrenic inpatients and nonpsychotic controls were tested in a paradigm designed to elicit habituated event-related potentials (ERPs) to auditory stimuli. Analysis of Variance of the ERP components recorded at bilateral frontal (F1 and F2) and temporal (T3 and T4) scalp leads revealed signific...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(89)90053-x
更新日期：1989-08-01 00:00:00
abstract：:There is no definitive neural marker of suicidal thoughts and behaviors (STBs) or nonsuicidal self-injury (NSSI), and relative to adults, research in youth is more limited. This comprehensive review focuses on magnetic resonance imaging studies reporting structural and functional neural correlates of STBs and NSSI in ...
journal_title：Biological psychiatry
pub_type： 杂志文章,评审
doi：10.1016/j.biopsych.2020.06.002
更新日期：2021-01-15 00:00:00
abstract：BACKGROUND:Subjects with autism suffer from impairments of social interaction, deviations in language usage, as well as restricted and stereotyped patterns of behavior. These characteristics are found irrespective of age, IQ, and gender of affected subjects. However, brain changes due to age, IQ, and gender might pose ...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2011.03.026
更新日期：2011-08-01 00:00:00
abstract：:Hypertonic hemolysis was increased in patients with a manic episode (n = 6, mean NaCl concentration in mol/L at which 50% of the erythrocytes was hemolyzed (H50) 3.24 +/- 0.10), compared to healthy controls (n = 12, mean H50 3.43 +/- 0.13) (p < or = 0.02) and patients with a nonaffective psychotic disorder (n = 15, me...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(95)00106-9
更新日期：1996-01-01 00:00:00
abstract：BACKGROUND:In the Systematic Treatment Enhancement Program for Bipolar Disorder, we showed that valproate is associated with new-onset menstrual-cycle irregularities and hyperandrogenism in 10.5% of 86 women. We now determine whether polycystic ovarian syndrome (PCOS) features reverse on valproate discontinutation. ME...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2006.05.027
更新日期：2006-12-15 00:00:00
abstract：BACKGROUND:A growing body of preclinical research suggests that brain glutamate systems may be involved in the pathophysiology of major depression and the mechanism of action of antidepressants. This is the first placebo-controlled, double-blinded trial to assess the treatment effects of a single dose of an N-methyl-D-...
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)00230-9
更新日期：2000-02-15 00:00:00
abstract：BACKGROUND:Among the diverse animal models proposed for schizophrenia, the neonatal ventral hippocampal lesion (NVHL) is one of the most widely used. However, its construct validity can be questioned because there is no evidence of a lesion present in schizophrenia. Other approaches that have tried to capture environme...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2009.09.028
更新日期：2010-02-15 00:00:00
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journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(91)90068-w
更新日期：1991-07-01 00:00:00
abstract：BACKGROUND:Recent postmortem studies demonstrate disrupted neurochemistry of the noradrenergic locus coeruleus (LC) in major depression (MD). Increased levels of tyrosine hydroxylase and decreased levels of norepinephrine transporter implicate a norepinephrine deficiency in the LC in MD. Here we describe a study of alp...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/s0006-3223(02)01728-6
更新日期：2003-02-15 00:00:00
abstract：BACKGROUND:The implication of serotonin in suicide and affective disease explains why the 5-HT(2A) receptor gene has been proposed as a candidate gene in these disorders, although with conflicting results. METHODS:We analysed the distribution of the 5-HT(2A)-1438A/G genetic polymorphism in 192 patients with major affe...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/s0006-3223(01)01228-8
更新日期：2002-05-01 00:00:00
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journal_title：Biological psychiatry
pub_type： 杂志文章,评审
doi：10.1016/j.biopsych.2013.01.021
更新日期：2013-06-15 00:00:00
abstract：BACKGROUND:The incubation of cue-induced drug craving in rodents provides a model of persistent vulnerability to craving and relapse in human addicts. After prolonged withdrawal, incubated cocaine craving depends on strengthening of nucleus accumbens (NAc) core synapses through incorporation of Ca2+-permeable alpha-ami...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2016.04.003
更新日期：2016-11-01 00:00:00
abstract：BACKGROUND:A genetic component has a role in the etiology of Panic Disorder (PD) and a familial association between PD and CO2 hypersensitivity have been repeatedly described. METHODS:Complex segregation analysis was performed on a sample of 165 families of PD probands and on the subgroup homogeneous for CO2 hypersens...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/s0006-3223(99)00004-9
更新日期：1999-09-15 00:00:00
abstract：:The interaction between various neuroleptics and antiparkinsonian drugs was analyzed by measuring the neuroleptic plasma level before and after withdrawal of antiparkinsonian drugs. The population completing the study consisted of 32 chronic schizophrenics treated with chlorpromazine (8), levomepromazine (14), thiorid...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：
更新日期：1977-06-01 00:00:00
abstract：BACKGROUND:Elevated levels of proinflammatory cytokines, especially interleukin-6 (IL-6), can mediate the greater risk for cardiovascular disease in individuals with posttraumatic stress disorder (PTSD), particularly in those with comorbid major depressive disorder (MDD). However, IL-6 levels are not consistently eleva...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2010.07.033
更新日期：2010-12-01 00:00:00
abstract：BACKGROUND:Studies in elderly patients demonstrate antipsychotic efficacy and favorable safety profiles for olanzapine. We report results from two placebo-controlled, double-blind studies of olanzapine for treatment of dopamimetic drug-induced psychosis in patients with Parkinson's disease (PD). METHODS:Patients were ...
journal_title：Biological psychiatry
pub_type： 临床试验,杂志文章,多中心研究,随机对照试验
doi：10.1016/s0006-3223(02)01392-6
更新日期：2002-09-01 00:00:00
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journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(95)00048-8
更新日期：1995-11-15 00:00:00
abstract：:To date, there has been little investigation of the neurobiological basis of emotion processing abnormalities in psychiatric populations. We have previously discussed two neural systems: 1) a ventral system, including the amygdala, insula, ventral striatum, ventral anterior cingulate gyrus, and prefrontal cortex, for ...
journal_title：Biological psychiatry
pub_type： 杂志文章,评审
doi：10.1016/s0006-3223(03)00171-9
更新日期：2003-09-01 00:00:00
abstract：:Several lines of evidence suggest that dopamine might be involved in anxiety states. In this study, we assessed the growth hormone (GH) response to apomorphine (a dopaminergic agonist) 0.5 mg SC in nine drug-free inpatients meeting Research Diagnostic Criteria (RDC) for panic disorder who were age-matched and gender-m...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(92)90061-4
更新日期：1992-12-01 00:00:00
abstract：:A morphometric magnetic resonance imaging (MRI) study compared volumes of brain structures in 10 female subjects with trichotillomania (repetitive hair-pulling) versus 10 normal controls matched for sex, age, handedness, and education. Three-dimensional MRI scans were blindly normalized and segmented using well-charac...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/S0006-3223(96)00297-1
更新日期：1997-07-01 00:00:00
