Abstract：
:Adrenocorticosteroids and serotonergic neurons exert reciprocal regulatory actions, and both are abnormal in depression. We evaluated whether glucocorticoids influence the serotonin transporter in rat platelets and brain by infusing dexamethasone for 26 days, sufficient for replacement of the entire platelet population. Effectiveness was verified by measurement of plasma dexamethasone levels, adrenal atrophy, and growth inhibition. At the end of the infusion, we examined [3H]paroxetine binding to platelet, hippocampal, and cerebrocortical membranes, and [3H]serotonin uptake into platelets and synaptosomes. Dexamethasone slightly reduced platelet [3H]paroxetine binding (12%) and had no effect on binding in brain. Platelet [3H]serotonin uptake was unaffected, but synaptosomal uptake was significantly reduced. In neither platelets nor synaptosomes did dexamethasone alter imipramine's ability to inhibit uptake. Thus, elevated glucocorticoids are not responsible for reduced platelet serotonin transporter expression in depression, nor for resistance to imipramine's effect in platelets in elderly depression; however, reduced synaptosomal [3H]serotonin uptake indicates that glucocorticoids can affect transport efficiency, even when the number of transporter molecules is unaltered.
journal_name
Biol Psychiatryjournal_title
Biological psychiatryauthors
Slotkin TA,McCook EC,Ritchie JC,Seidler FJdoi
10.1016/0006-3223(95)00469-6subject
Has Abstractpub_date
1996-10-01 00:00:00pages
576-84issue
7eissn
0006-3223issn
1873-2402pii
0006322395004696journal_volume
40pub_type
杂志文章abstract：BACKGROUND:Solid evidence links schizophrenia (SZ) susceptibility to neurodevelopmental processes involving tyrosine phosphorylation-mediated signaling. Mouse studies implicate the Ptpra gene, encoding protein tyrosine phosphatase RPTPα, in the control of radial neuronal migration, cortical cytoarchitecture, and oligod...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2011.06.016
更新日期：2011-10-01 00:00:00
abstract：:The current concept that blunted adrenocorticotropic hormone (ACTH) response to human corticotropin-releasing-hormone (h-CRH) in depression is primarily determined by elevated circulating plasma cortisol levels is still unproven. We tested this hypothesis by comparing ACTH release following intravenous administration ...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(88)90254-5
更新日期：1988-11-01 00:00:00
abstract：BACKGROUND:Despite the twofold higher prevalence of major depressive and posttraumatic stress disorders in women compared with men, most clinical and preclinical studies have focused on male subjects. We used an ethological murine model to study several cardinal symptoms of affective disorders in the female targets of ...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2019.05.005
更新日期：2019-11-01 00:00:00
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journal_title：Biological psychiatry
pub_type： 杂志文章
doi：
更新日期：1982-12-01 00:00:00
abstract：BACKGROUND:Psychostimulants and opiates trigger similar enduring neuroadaptations within the reward circuitry thought to underlie addiction. Transcription factors are key to mediating these enduring behavioral alterations. The facilitation of these maladaptive changes by glucocorticoid hormones suggests that the glucoc...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2010.03.037
更新日期：2010-08-01 00:00:00
abstract：BACKGROUND:There is an increasing recognition that the pathophysiology of mental disorders could be the result of deregulation of synaptic plasticity with alterations of neurotrophins. The valine (Val)66-to-methionine (Met) variant, located in the pro brain-derived neurotrophic factor (BDNF) sequence, has been extensiv...
journal_title：Biological psychiatry
pub_type： 杂志文章,meta分析
doi：10.1016/j.biopsych.2006.08.025
更新日期：2007-04-01 00:00:00
abstract：BACKGROUND:The cardiovascular safety of mixed amphetamine salts extended release (MAS XR) was evaluated in 2968 children 6-12 years of age with attention-deficit/hyperactivity disorder (ADHD). METHODS:In this prospective, open-label, noncomparative, community-based study, subjects whose symptoms of ADHD were well cont...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2006.05.002
更新日期：2007-03-01 00:00:00
abstract：:Using computed tomography, lateral ventricular size was determined in 45 schizophrenic and 22 affective disorder patients, and was found in both patient groups to be greater than that of 62 similarly aged headache controls. While drug-free, the 15 schizophrenics with ventricles 1 standard deviation greater than the ag...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：
更新日期：1984-01-01 00:00:00
abstract：BACKGROUND:It is uncertain whether the neurobiological abnormalities in schizophrenia emerge at the first episode of the disorder or are present during the prodromal phase. Recent neuroimaging studies indicate that some brain abnormalities are present in subjects at ultra-high-risk (UHR) for schizophrenia. Pre-attentiv...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2008.12.024
更新日期：2009-06-15 00:00:00
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journal_title：Biological psychiatry
pub_type： 杂志文章,meta分析,评审
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更新日期：2010-09-15 00:00:00
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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：10.1016/0006-3223(94)00190-E
更新日期：1995-04-01 00:00:00
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journal_title：Biological psychiatry
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.biopsych.2011.11.011
更新日期：2012-03-01 00:00:00
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journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(90)90590-x
更新日期：1990-04-01 00:00:00
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journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(92)90247-w
更新日期：1992-03-15 00:00:00
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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(02)01500-7
更新日期：2003-02-01 00:00:00
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journal_title：Biological psychiatry
pub_type： 杂志文章,评审
doi：10.1016/j.biopsych.2015.03.013
更新日期：2015-06-15 00:00:00
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journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2004.08.013
更新日期：2004-11-01 00:00:00
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journal_title：Biological psychiatry
pub_type： 杂志文章,评审
doi：10.1016/j.biopsych.2012.05.003
更新日期：2012-10-01 00:00:00
abstract：:Heterogeneity is a major obstacle in the search for biological substrates in schizophrenia. The positive and negative distinction, even if too simplistic, may improve our understanding of underlying processes. Frontostriatal deficits have been related to negative symptoms, while dysfunction of the dominant temporal lo...
journal_title：Biological psychiatry
pub_type： 杂志文章,评审
doi：10.1016/0006-3223(94)00205-H
更新日期：1995-07-01 00:00:00
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journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2006.07.023
更新日期：2007-05-15 00:00:00
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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
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journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2011.10.017
更新日期：2012-02-15 00:00:00
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journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2011.02.019
更新日期：2011-07-01 00:00:00
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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
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journal_title：Biological psychiatry
pub_type： 杂志文章
doi：
更新日期：1984-10-01 00:00:00
abstract：BACKGROUND:Current smoking cessation therapies offer limited success, as relapse rates remain high. Nicotine, which is the major component of tobacco smoke, is thought to be primarily responsible for the addictive properties of tobacco. However, little is known about the molecular mechanisms underlying nicotine relapse...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2014.02.001
更新日期：2014-11-01 00:00:00
abstract：BACKGROUND:There is a paucity of neuroimaging data in pediatric-onset obsessive-compulsive disorder (OCD). This multimodal neuroimaging study aimed to identify structural gray (GM) and white matter (WM) microstructure changes in pediatric OCD. METHODS:We obtained structural and diffusion tensor magnetic resonance imag...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2011.06.032
更新日期：2011-12-01 00:00:00
abstract：:Neutrophils from 22 patients (11 men, 11 women) under chronic lithium therapy and from 22 age- and sex-matched healthy controls were assessed for the activity of the agonist-stimulated inositol-phospholipid second messenger-producing system. [3H]inositol-labeled cells were stimulated with the chemotactic peptide formy...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/0006-3223(91)90305-6
更新日期：1991-09-01 00:00:00
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journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2010.08.028
更新日期：2011-04-01 00:00:00
abstract：BACKGROUND:Animal research shows that early adverse experience results in altered glucocorticoid levels in adulthood, either raised basal levels or accentuated responses to stress. If a similar phenomenon operates in humans, this suggests a biological mechanism whereby early adversity might transmit risk for major depr...
journal_title：Biological psychiatry
pub_type： 杂志文章
doi：10.1016/j.biopsych.2003.09.013
更新日期：2004-02-15 00:00:00
