Abstract：
:Our previous studies have shown that in psychotics, the plasma serine level is abnormally high and that plasma serine hydroxymethyltransferase (which cleaves serine to glycine) activity is abnormally low as compared with that in nonpsychotic subjects. In this study, psychotic and nonpsychotic subjects ingested a large bolus of L-serine (4 mM/kg) at breakfast and blood was drawn before breakfast, 2 hr, 4 hr, and 6 hr after serine ingestion. Baseline serine and SHMT activity differentiated between psychotics and nonpsychotics with high degrees of significance (p less than 0.0001) and p less than 0.01, respectively). Plasma serine levels 2 hr after serine ingestion were significantly higher (p less than 0.01) in nonpsychotics as compared with psychotics. Elimination of serine in psychotics was bimodal and was significantly different from that of nonpsychotics (p less than 0.0079, Moses test). These findings provide additional evidence for abnormal serine metabolism in psychotic patients.
journal_name
Biol Psychiatryjournal_title
Biological psychiatryauthors
Wilcox J,Waziri R,Sherman A,Mott Jdoi
10.1016/0006-3223(85)90133-7subject
Has Abstractpub_date
1985-01-01 00:00:00pages
41-9issue
1eissn
0006-3223issn
1873-2402pii
0006-3223(85)90133-7journal_volume
20pub_type
杂志文章abstract：:We studied 10 subjects each with melancholic depression evidencing significant motor retardation (RM), Parkinson's disease (PD) with bradykinesia, and normal healthy controls (NC), matched closely for age and gender, on measurements of motor function and depression, and their performance of simple and complex ballisti...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(94)91256-4
更新日期：1994-02-15 00:00:00
abstract：BACKGROUND:Abnormalities of cortical neuronal organization and reductions in neuronal somal size have been reported in schizophrenia. The purpose of this investigation was to assess patterns of neuronal and glial distribution in the anterior cingulate cortex (ACC) in major depressive disorder (MDD), schizophrenia, bipo...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/s0006-3223(03)00114-8
更新日期：2003-06-15 00:00:00
abstract：:The densities of platelet 3H-imipramine sites were determined by repetitive measures of 11 normal controls over the course of 1 year. A significant seasonal variation was found, with a circannual peak on February 17 and a nadir on August 18. The estimated amplitude of this rhythm was +/- 599.54 fmol/mg, which fluctuat...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(89)90069-3
更新日期：1989-09-01 00:00:00
abstract：:In a sample of 13 endogenous depressive inpatients, REM (rapid eye movement) latency (recorded over 4 consecutive nights after 2 habituation nights) and contingent negative variation amplitude showed significant relationship, suggesting that both parameters may depend on the same mechanisms, possibly cholinergic. ...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(85)90115-5
更新日期：1985-12-01 00:00:00
abstract：:Interpersonal and social rhythm therapy is an individual psychotherapy designed specifically for the treatment for bipolar disorder. Interpersonal and social rhythm therapy grew from a chronobiological model of bipolar disorder postulating that individuals with bipolar disorder have a genetic predisposition to circadi...
journal_title：Biological psychiatry
pub_type： 杂志文章,评审
doi：10.1016/s0006-3223(00)00969-0
更新日期：2000-09-15 00:00:00
abstract：:Over the past 30 years, investigators have used nonlinear and so-called chaos theory-based techniques to examine a wide range of phenomena ranging from electroencephalogram and cardiac rate and rhythm analyses to stock market and weather predictions. Psychiatric neuroscientists are now beginning to apply nonlinear met...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/s0006-3223(02)01701-8
更新日期：2003-01-01 00:00:00
abstract：:The intuitive association between self-focused rumination in major depressive disorder (MDD) and the self-referential operations performed by the brain's default-mode network (DMN) has prompted interest in examining the role of the DMN in MDD. In this article, we present meta-analytic findings showing reliably increas...
journal_title：Biological psychiatry
pub_type： 杂志文章,评审
doi：10.1016/j.biopsych.2015.02.020
更新日期：2015-08-15 00:00:00
abstract：BACKGROUND:Acute ketamine has been shown to model features of schizophrenia such as psychotic symptoms, cognitive deficits and smooth pursuit eye movement dysfunction. There have been suggestions that chronic ketamine may also produce an analogue of the disorder. In this study, we investigated the effect of persistent ...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2008.10.045
更新日期：2009-06-15 00:00:00
abstract：:Research on mood and anxiety disorders has historically proceeded without sufficient reference to the growing body of work on the nature of typical emotional development and temperament. Reviewing data from several studies, we consider experiential, biological, and genetic factors as providing causal input to typical ...
journal_title：Biological psychiatry
pub_type： 杂志文章,评审
doi：10.1016/s0006-3223(00)01003-9
更新日期：2000-12-15 00:00:00
abstract：BACKGROUND:Chronic treatment of rats with certain selective serotonin or norepinephrine reuptake inhibitors produces significant decreases, respectively, in serotonin and norepinephrine transporter binding sites in brain. Duloxetine may be a dual serotonin/norepinephrine reuptake inhibitor, as it is only a slightly mor...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2006.02.029
更新日期：2007-01-15 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：: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：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:Clinically and biologically, autism spectrum disorder (ASD) is heterogeneous. Unusual patterns of visual preference as indexed by eye tracking are hallmarks; however, whether they can be used to define an early biomarker of ASD as a whole or leveraged to define a subtype is unclear. To begin to examine this ...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2015.03.032
更新日期：2016-04-15 00:00:00
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 de...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/s0006-3223(99)00148-1
更新日期：2000-04-01 00:00:00
abstract：BACKGROUND:Experimental animal studies suggest that early glucocorticoid exposure may have lasting effects on the neurodevelopment of the offspring; animal studies also suggest that this effect may be eliminated by positive postnatal rearing. The relevance of these findings to humans is not known. METHODS:We prospecti...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2010.01.002
更新日期：2010-06-01 00:00:00
abstract：BACKGROUND:Chronic stress exposure causes neuronal atrophy and synaptic deficits in the medial prefrontal cortex (PFC), contributing to development of anxiety- and depressive-like behaviors. Concomitantly, microglia in the PFC undergo morphological and functional changes following stress exposure, suggesting that micro...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2017.05.026
更新日期：2018-01-01 00:00:00
abstract：BACKGROUND:Several studies have found that alpha-tocopherol (vitamin E) can effectively treat tardive dyskinesia (TD). A limitation of these trials is their short treatment durations (maximum of 12 weeks), which do not allow us to address the effects of long-term treatment. METHODS:To participate, patients had to have...
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(97)00027-9
更新日期：1998-06-15 00:00:00
abstract：BACKGROUND:Several epidemiologic and clinical factors have been shown to predict long term outcome in major depressive disorder (MDD). The value of biological predictors has not been extensively studied. This study examined whether plasma norepinephrine may be useful in predicting outcome in MDD. METHODS:Forty patient...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/s0006-3223(99)00134-1
更新日期：1999-11-01 00:00:00
abstract：BACKGROUND:Dopamine D4 receptor (DRD4) gene polymorphisms are associated with various pharmacologic activities. This study investigated whether polymorphisms of 48-bp tandem repeats in the exon 3 of the DRD4 gene are related to neuroleptic response. METHODS:The neuroleptic response at the acute stage of schizophrenia ...
journal_title：Biological psychiatry
pub_type： 临床试验,杂志文章
doi：10.1016/s0006-3223(98)00134-6
更新日期：1998-09-15 00:00:00
abstract：BACKGROUND:Childhood-onset schizophrenia (COS), defined as onset of psychotic symptoms by age 12 years, is a rare and severe form of the disorder that seems to be clinically and neurobiologically continuous with the adult disorder. METHODS:We studied a rare cohort consisting of 98 probands; 71 of these probands receiv...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2004.01.024
更新日期：2004-05-15 00:00:00
abstract：BACKGROUND:Frequent electroencephalographic arousals or awakenings associated with periodic leg movements (PLM) might be responsible in part for the complaints of sleep disturbances made by patients treated with antidepressants. Past studies, however, have determined the effects of only certain limited antidepressants,...
journal_title：Biological psychiatry
pub_type： 临床试验,杂志文章
doi：10.1016/j.biopsych.2005.04.022
更新日期：2005-09-15 00:00:00
abstract：BACKGROUND:Elevated endogenous levels of corticosteroids cause neural dysfunction and loss, especially within the hippocampus, as well as cognitive impairment in hippocampus-mediated tasks. Because Cushing's syndrome patients suffer from hypercortisolism, they represent a unique opportunity to study the impact of eleva...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2004.09.003
更新日期：2004-12-01 00:00:00
abstract：BACKGROUND:Currently, no pharmacological treatments for bipolar depression exist that exert rapid (within hours) antidepressant or antisuicidal effects. We previously reported that intravenous administration of the N-methyl-D-aspartate antagonist ketamine produced rapid antidepressant effects in patients with treatment...
journal_title：Biological psychiatry
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.biopsych.2011.12.010
更新日期：2012-06-01 00:00:00
abstract：:Functional neuroimaging studies have identified multiple nodes of dysfunction in frontostriatal and mesocorticolimbic networks in attention-deficit/hyperactivity disorder (ADHD). Yet relatively few studies have examined how structural and functional connectivity between nodes in these networks might relate to the beha...
journal_title：Biological psychiatry
pub_type： 杂志文章,评审
doi：10.1016/j.biopsych.2011.03.022
更新日期：2011-06-15 00:00:00
abstract：BACKGROUND:Deletions encompassing a four-gene region on chromosome 15 (BP1-BP2 at 15q11.2), seen at a population frequency of 1 in 500, are associated with increased risk for schizophrenia, epilepsy, and other common neurodevelopmental disorders. However, little is known in terms of how these common deletions impact co...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2019.04.008
更新日期：2019-08-15 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
abstract：BACKGROUND:Anatomic magnetic resonance imaging (MRI) studies of attention-deficit/hyperactivity disorder (ADHD) have been limited by use of callosal rather than sulcal/gyral landmarks in defining cerebral lobes and functionally relevant sublobar regions (e.g., prefrontal cortex). We present an investigation of cerebral...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/s0006-3223(02)01412-9
更新日期：2002-10-15 00:00:00
abstract：:Pre-treatment and posttreatment dexamethasone suppression test (DST) results in physically healthy elderly major depressives without dementia demonstrated an association between treatment and DST normalization. Sixty percent of subjects were nonsuppressors at baseline compared to 17% after intensive treatment. DST res...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(93)90263-d
更新日期：1993-07-01 00:00:00
abstract：BACKGROUND:Obsessive-compulsive disorder (OCD) is a debilitating neuropsychiatric disorder with a genetic risk component, yet identification of high-confidence risk genes has been challenging. In recent years, risk gene discovery in other complex psychiatric disorders has been achieved by studying rare de novo (DN) cod...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2019.09.029
更新日期：2020-06-15 00:00:00
