Abstract：
:Eighteen unmedicated patients suffering from major depressive disorder with melancholia (DSM-III) were examined for abnormalities in peripheral serotonin (5-HT) and related metabolites. Serotonin in platelet-free plasma and in platelets from melancholics was significantly reduced to 30% and 60% of their respective control values. Plasma 5-hydroxyindoleacetic acid was also found to be reduced, but not significantly. Other plasma compounds related to 5-HT (indoleacetic acid, total tryptophan, and free tryptophan) were found to be unchanged in these patients. Of all variables, only platelet 5-HT was affected while patients were on clomipramine (CIM) treatment. After 2 weeks on CIM (100-150 mg/day, orally), platelet 5-HT was reduced to 8% of pretreatment values, but plasma 5-HT did not change and continued to be reduced upon clinical recovery. The existence of a distinct pool of plasma 5-HT that is clearly independent of the platelet pool is indicated by the differences observed in plasma and platelet 5-HT during CIM treatment, as well as by previous data from this laboratory. The very marked decrease in plasma 5-HT levels may be in accord with the central nervous system changes reported in depression and suggests the possibility of using plasma 5-HT as a peripheral indicator of abnormal serotonin function in melancholia.
journal_name
Biol Psychiatryjournal_title
Biological psychiatryauthors
Sarrias MJ,Artigas F,Martínez E,Gelpí E,Alvarez E,Udina C,Casas Mdoi
10.1016/0006-3223(87)90100-4subject
Has Abstractpub_date
1987-12-01 00:00:00pages
1429-38issue
12eissn
0006-3223issn
1873-2402pii
0006-3223(87)90100-4journal_volume
22pub_type
杂志文章abstract：BACKGROUND:We previously reported that a single injection of ketamine prior to stress protects against the onset of depressive-like behavior and attenuates learned fear. However, the molecular pathways and brain circuits underlying ketamine-induced stress resilience are still largely unknown. METHODS:Here, we tested w...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2018.02.011
更新日期：2018-12-01 00:00:00
abstract：BACKGROUND:Although the FMR1 premutation is associated with elevated prevalence of psychiatric disorders, the longitudinal course of symptoms has not been established. The present study followed a sample of women with the FMR1 premutation to characterize the incidence, stability, and predictors of mood and anxiety diso...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2015.07.015
更新日期：2016-05-15 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: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：BACKGROUND:The observation that some patients with schizophrenia display subtly anomalous craniofacial features dates back to the early 1900s and has recently been hypothesized to reflect disrupted prenatal development also involving the brain. Most studies to date have used observer ratings rather than physical measur...
journal_title：Biological psychiatry
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.biopsych.2005.06.034
更新日期：2006-02-15 00:00:00
abstract：:There is increasing evidence of a deficit or disturbance of neurons in the brains of schizophrenic patients--evidence that particularly implicates the frontal or temporal lobes. As yet there is no direct neurochemical correlate of the transmitter systems involved, although changes in some neurotransmitters in the temp...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(90)90039-5
更新日期：1990-05-01 00:00:00
abstract：BACKGROUND:Reduction in a pre-attentive measure of auditory change detection, mismatch negativity (MMN), is one of the most consistent findings in schizophrenia. Recently, our group showed a reduction in MMN to changes in the duration and intensity of background sounds in those within 5 years of illness onset, whereas ...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2011.08.023
更新日期：2012-01-15 00:00:00
abstract：:The aim of the present paper was to perform a single trial analysis of event-related potentials in order to elucidate the mechanisms behind a reduced P300 amplitude occurring in unmedicated depressives (n = 11) and schizophrenics (n = 18). For this purpose, tools from linear system theory were applied to single trials...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(95)00652-4
更新日期：1996-11-01 00:00:00
abstract：BACKGROUND:Electroconvulsive therapy (ECT) is the most acutely effective treatment for depression, but is limited by cognitive side effects. However, research on their persistence, severity, and pattern is inconsistent. We aimed to quantify ECT-associated cognitive changes, specify their pattern, and determine progress...
journal_title：Biological psychiatry
pub_type： 杂志文章,meta分析,评审
doi：10.1016/j.biopsych.2010.06.009
更新日期：2010-09-15 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：BACKGROUND:Mismatch negativity (MMN) is a negative-going event-related potential (ERP) component that occurs in response to intermittent changes in constant auditory backgrounds. A consistent finding across a large number of studies has been impaired MMN generation in schizophrenia, which has been interpreted as eviden...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2008.03.019
更新日期：2008-09-01 00:00:00
abstract：BACKGROUND:Most depressed adults exhibit dysregulation of the hypothalamic-pituitary-adrenal axis, including cortisol hyperreactivity to psychosocial challenge. In contrast, remarkably little is known about hypothalamic-pituitary-adrenal axis activity in response to psychosocial challenge among at-risk children and ado...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2010.04.004
更新日期：2010-09-01 00:00:00
abstract：BACKGROUND:Although genetic risk factors for posttraumatic stress disorder (PTSD) in similarly traumatized cohorts can be confounded with risk for type of exposure, the primary risk for exposure to the 9/11 attack on New York City was proximity, allowing study of PTSD risk in a sample that is not confounded by exposure...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2009.02.034
更新日期：2009-10-01 00:00:00
abstract：:The prevalence and role of sleep disorders in the sexual problems of diabetic patients remain unexplored. This study was conducted on 40 diabetic men carefully screened to exclude the confounding effects of other medical illnesses or drugs likely to impair sexual function and 40 age-matched healthy volunteers. They un...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(93)90388-t
更新日期：1993-08-01 00:00:00
abstract：:It has previously been demonstrated that direct opiate infusion into nucleus accumbens elicits psychomotor activation in rats. In the present study, the effects of chronic treatment with five different neuroleptics on this behavioral response were investigated. All neuroleptics tested (haloperidol, sulpiride, flupenti...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(86)90006-5
更新日期：1986-01-01 00:00:00
abstract：:Specific electroencephalogram (EEG) changes during clozapine therapy were prospectively studied in a cohort of 50 chronic state hospital patients with schizophrenia who were randomly assigned to one of three nonoverlapping clozapine serum level ranges (50-150 ng/mL, 200-300 ng/mL, and 350-450 ng/mL). EEGs were obtaine...
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)00298-3
更新日期：1997-07-15 00:00:00
abstract：:Posttraumatic stress disorder (PTSD) is a stress-related psychiatric disorder that is thought to emerge from complex interactions among traumatic events and multiple genetic factors. Epigenetic regulation lies at the heart of these interactions and mediates the lasting effects of the environment on gene regulation. An...
journal_title：Biological psychiatry
pub_type： 杂志文章,评审
doi：10.1016/j.biopsych.2015.04.003
更新日期：2015-09-01 00:00:00
abstract：BACKGROUND:In addition to cognitive impairment, there are disruptions to mood and emotion processing in attention-deficit/hyperactivity disorder (ADHD) but little is known about their neural basis. We examined ADHD disturbances in mood and emotion recognition and underlying neural systems before and after treatment wit...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2007.11.022
更新日期：2008-05-15 00:00:00
abstract：:Previous studies of the haloperidol-induced increase in dopamine (DA) receptor number have not emphasized the existence of individual differences. The present study evaluated DA receptor number in individual rat and mouse caudates after haloperidol or drug-free feeding. After 3 months of haloperidol treatment of rats ...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：
更新日期：1981-11-01 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:Vagus nerve stimulation (VNS) alters both concentrations of neurotransmitters or their metabolites and functional activity of central nervous system regions dysregulated in mood disorders. An open trial has suggested efficacy. METHODS:This 10-week, acute, randomized, controlled, masked trial compared adjunc...
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.2005.05.025
更新日期：2005-09-01 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: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: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：:Animal models of mental illness provide a foundation for evaluating hypotheses for the mechanistic causes of mental illness. Neurophysiological investigations of neural network activity in rodent models of mental dysfunction are reviewed from the conceptual framework of the discoordination hypothesis, which asserts th...
journal_title：Biological psychiatry
pub_type： 杂志文章,评审
doi：10.1016/j.biopsych.2015.03.013
更新日期：2015-06-15 00:00:00
abstract：BACKGROUND:Brain imaging and behavioral studies suggest an inverse relationship between dopamine (DA) D2/D3 receptors and vulnerability to cocaine abuse, although most research has used males. For example, male monkeys that become dominant in a social group have significant elevations in D2/D3 receptor availability and...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2012.03.002
更新日期：2012-09-01 00:00:00
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：:Postmortem cerebellar and frontal cortical membrane homogenates from human alcoholics, control subjects without neurological or psychiatric illnesses, and rats that chronically drank alcohol were studied to determine the binding characteristics of an imidazobenzodiazepine, [3H]Ro 15-4513. This ligand binds to classica...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(92)90309-n
更新日期：1992-04-15 00:00:00
abstract：BACKGROUND:How clozapine exerts superior antipsychotic efficacy in treatment-resistant schizophrenia is not known. Moderate (rather than "full") occupancy of D2 postsynaptic receptors may be crucial, perhaps by achieving a more effective D1/D2 or serotonin-2a/D2 ratio. The objective of this study was to test the modera...
journal_title：Biological psychiatry
pub_type： 临床试验,杂志文章
doi：10.1016/S0006-3223(98)00226-1
更新日期：1998-01-15 00:00:00
abstract：BACKGROUND:Hypersecretion of corticotropin-releasing hormone (CRH) in the brain has been implicated in stress-related human pathologies. We developed a transgenic mouse line overexpressing CRH (CRH-OE) exclusively in neural tissues to assess the effect of long-term CRH overproduction on regulation of the hypothalamic-p...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/s0006-3223(02)01334-3
更新日期：2002-06-01 00:00:00
