Abstract：
:Vitamin A and its derivatives, the retinoids, exert modulatory roles on central nervous system (CNS) function. However, the clinical use of vitamin A at moderate to high doses induces serious side effects, including dysfunctional brain metabolism and mood disorders. Then, we have investigated in this work the effects of vitamin A supplementation at 1000, 2500, 4500, or 9000IU/kg/day for 28 days on redox and bioenergetics parameters in adult rat frontal cortex. Additionally, we have measured caspase-3 and caspase-8 activities to analyze whether vitamin A supplementation as retinol palmitate induces neuronal death in such brain area. The levels of the pro-inflammatory cytokine TNF-alpha were also quantified. We have found increased rates of O(2)(-) production and increased levels of markers of oxidative insult in frontal cortex and also in mitochondrial membranes. Superoxide dismutase (SOD) enzyme activity was increased, and catalase (CAT) enzyme activity did not change in this experimental model. Surprisingly, we observed increased mitochondrial electron transfer chain (METC) activity. Caspase-3 and caspase-8 activities and TNF-alpha levels did not change in this experimental model. Finally, vitamin A supplementation did not induce depression in adult rats after 28 days of treatment. However, exploration in the center of an open field was decreased and time spent in freezing behavior was increased in vitamin A treated rats.
journal_name
J Psychiatr Resjournal_title
Journal of psychiatric researchauthors
De Oliveira MR,Oliveira MW,Behr GA,Moreira JCdoi
10.1016/j.jpsychires.2008.10.002subject
Has Abstractpub_date
2009-05-01 00:00:00pages
754-62issue
8eissn
0022-3956issn
1879-1379pii
S0022-3956(08)00231-8journal_volume
43pub_type
杂志文章abstract：:This study explored whether cerebral metabolic changes seen in treatment resistant and rapid cycling bipolar depression inpatients are also found in an outpatient sample not specifically selected for treatment resistance or rapid cycling. We assessed 15 depressed outpatients with bipolar disorder (six type I and nine ...
journal_title：Journal of psychiatric research
pub_type： 杂志文章
doi：10.1016/j.jpsychires.2008.04.015
更新日期：2009-01-01 00:00:00
abstract：OBJECTIVES:Clinical research projects gather large amounts of data. Typically, information is captured on paper source documents for later transcription to an electronic format, where responses can be checked, and errors, omissions, and inconsistencies can be resolved. These steps contribute delays, cost, and complexit...
journal_title：Journal of psychiatric research
pub_type： 杂志文章
doi：10.1016/j.jpsychires.2006.07.015
更新日期：2007-11-01 00:00:00
abstract：:Psychological distress and coping styles have been suggested to relate to altered function in the hypothalamic-pituitary-adrenal (HPA) axis, although there remains much to be understood about their relationships. High and low cortisol levels (or reactivity) both represent HPA axis dysfunction, with accumulated evidenc...
journal_title：Journal of psychiatric research
pub_type： 杂志文章
doi：10.1016/j.jpsychires.2010.02.007
更新日期：2010-10-01 00:00:00
abstract：:Previous studies of gender differences in the phenomenology of depression have focused mostly on symptoms as measured by self-report questionnaires or clinician-rated scales. In this study, we examined gender differences in the interpersonal behavior of depressed patients by using ethological techniques which involve ...
journal_title：Journal of psychiatric research
pub_type： 临床试验,杂志文章
doi：10.1016/s0022-3956(98)00064-8
更新日期：1999-05-01 00:00:00
abstract：:The implicit and explicit memory in patients with obsessive-compulsive disorder (OCD) was investigated using the event-related potential (ERP). For the assessment of implicit memory, a lexical decision task was administered. Among a total of 320 words and 140 non-words, 200 words were repeated, while the remaining 120...
journal_title：Journal of psychiatric research
pub_type： 杂志文章
doi：10.1016/j.jpsychires.2005.05.007
更新日期：2006-09-01 00:00:00
abstract：:Because repetitive transcranial magnetic stimulation (rTMS) is capable of inducing lasting alterations of cortical excitability, it represents a promising therapeutic tool in several neuropsychiatric disorders. However, rTMS, especially when applied chronically, may cause harmful effects in the stimulated tissue. To s...
journal_title：Journal of psychiatric research
pub_type： 杂志文章
doi：10.1016/s0022-3956(03)00017-7
更新日期：2003-07-01 00:00:00
abstract：:We examined the behavioral effects of the dietary constituents tryptophan and tyrosine on human mood, sensorimotor performance and pain sensitivity. Tryptophan and tyrosine are neurotransmitter precursors present in varying amount in protein-containing foods. Tryptophan (50 mg/kg) increased subjective drowsiness and f...
journal_title：Journal of psychiatric research
pub_type： 杂志文章,评审
doi：10.1016/0022-3956(82)90015-2
更新日期：1982-01-01 00:00:00
abstract：:A difficulty in the interpretation of the reliability/stability of a lifetime diagnosis of mental disorders is the lack of a theoretical perspective. A model expressed in terms of the three unknowns--sensitivity, specificity and true base rate--is problematic due to the lack of a "gold standard", so that only two of t...
journal_title：Journal of psychiatric research
pub_type： 杂志文章
doi：10.1016/0022-3956(87)90080-x
更新日期：1987-01-01 00:00:00
abstract：:Neopterin, a byproduct of the tetrahydrobiopterin de novo pathway, is found in increased levels in cerebrospinal fluid and plasma and significantly increases upon damage, infection or during immune system activation. The production of this compound seems almost restricted to the monocyte/macrophage linage cells, in re...
journal_title：Journal of psychiatric research
pub_type： 杂志文章,评审
doi：10.1016/j.jpsychires.2015.10.003
更新日期：2015-12-01 00:00:00
abstract：INTRODUCTION:Even though anomalies on brain metabolites have been found in schizophrenia, researches about subjects with high risk (HR) show heterogeneous results. Thus, this meta-analysis aims to characterize the metabolic profile of HR subjects, first, compared to controls (HC) and then compared to people with schizo...
journal_title：Journal of psychiatric research
pub_type： 杂志文章,评审
doi：10.1016/j.jpsychires.2020.03.006
更新日期：2020-06-01 00:00:00
abstract：:Childhood maltreatment is associated with posttraumatic stress disorder (PTSD) and elevated rates of adolescent and adult psychopathology including major depression, bipolar disorder, substance use disorders, and other medical comorbidities. Gray matter volume changes have been found in maltreated youth with (versus w...
journal_title：Journal of psychiatric research
pub_type： 杂志文章,多中心研究
doi：10.1016/j.jpsychires.2017.12.015
更新日期：2018-03-01 00:00:00
abstract：:Although sleep disturbance has been shown to be associated with psychological distress and the hypothalamic-pituitary-adrenal (HPA) axis function, the simultaneous relationship between sleep, distress and HPA axis function is less clear. Here we examined the relationship between sleep quality as assessed with the Pitt...
journal_title：Journal of psychiatric research
pub_type： 杂志文章
doi：10.1016/j.jpsychires.2011.04.001
更新日期：2011-09-01 00:00:00
abstract：:Cholesterol (CHL) and phospholipid (PL) levels in synaptosomal membranes in particular can have an impact on cell signalling. Alterations in peripheral CHL measures have been consistently reported in suicidal behaviour. As CHL and PL turnover in the brain are important in synapse maintenance and function, the objectiv...
journal_title：Journal of psychiatric research
pub_type： 杂志文章
doi：10.1016/j.jpsychires.2012.10.019
更新日期：2013-02-01 00:00:00
abstract：:Benzodiazepine hypnotics increase NREM sleep and alter its EEG by reducing delta (0.3-3 Hz) and increasing sigma (12-15 Hz) and beta (15-23 Hz) activity. We tested whether the nonbenzodiazepine hypnotic, zolpidem (10 mg), produced the same pattern of sleep and EEG changes as two "classical" benzodiazepines, triazolam ...
journal_title：Journal of psychiatric research
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/s0022-3956(00)00038-8
更新日期：2000-11-01 00:00:00
abstract：:The post-partum period is a time of extreme vulnerability for a whole spectrum of psychiatric disorders. Delivery may be considered an important risk factor in genetically susceptible women. Five hundred and eight SNPs in 44 genes at candidate pathways putatively related to mood changes after delivery were genotyped i...
journal_title：Journal of psychiatric research
pub_type： 杂志文章,多中心研究
doi：10.1016/j.jpsychires.2009.12.012
更新日期：2010-08-01 00:00:00
abstract：:Williams syndrome (WMS) is a rare genetic disorder characterized by relative preservations of language ability and facial processing despite deficits in overall intelligence, problem solving, and visuospatial processing. Subjects with WMS also display hypersocial behavior and excessive linguistic affect during convers...
journal_title：Journal of psychiatric research
pub_type： 杂志文章
doi：10.1016/s0022-3956(01)00024-3
更新日期：2001-07-01 00:00:00
abstract：BACKGROUND:Gray matter reduction and ventricular enlargement belong to the best replicated findings in schizophrenia. Brain morphologic changes were also found in non-schizophrenic family members (FM). The intention of this study was to examine whether non-psychotic first-degree relatives reveal similar morphologic cha...
journal_title：Journal of psychiatric research
pub_type： 杂志文章
doi：10.1016/j.jpsychires.2005.04.009
更新日期：2006-10-01 00:00:00
abstract：:In a prospective study of a random sample of 1,007 young adults, we examined the association between migraine and psychiatric disorder, physical complaints, indicators of functional impairment, and use of mental health services. A history of migraine was associated with increased lifetime rates of major depression, an...
journal_title：Journal of psychiatric research
pub_type： 杂志文章
doi：10.1016/0022-3956(93)90009-q
更新日期：1993-04-01 00:00:00
abstract：:Many studies have suggested that prenatal and perinatal factors increase the risk for autism spectrum disorder (ASD). However, few reports have addressed the question of their influence on the severity of the clinical presentation of children with ASD. Our objective was to determine the prenatal and perinatal factors ...
journal_title：Journal of psychiatric research
pub_type： 杂志文章
doi：10.1016/j.jpsychires.2020.11.005
更新日期：2020-11-04 00:00:00
abstract：:A number of lines of converging evidence suggest that brain-derived neurotrophic factor (BDNF) may play a role in the onset and treatment of bipolar disorder. We review pertinent data on BDNF from several different areas of preclinical and clinical investigation that suggest novel theoretical and treatment implication...
journal_title：Journal of psychiatric research
pub_type： 杂志文章,评审
doi：10.1016/j.jpsychires.2006.09.009
更新日期：2007-12-01 00:00:00
abstract：:Existing animal and human research support the causal role of stress in the emergence of anhedonia, and in turn, the influence of anhedonia in social functioning. However, this model has not been tested in relation to psychosis-risk; this literature gap is notable given that both anhedonia and declining social functio...
journal_title：Journal of psychiatric research
pub_type： 杂志文章
doi：10.1016/j.jpsychires.2021.01.005
更新日期：2021-01-11 00:00:00
abstract：:Suicide is a serious worldwide health problem of critical consequences. Nowadays genetic factors are considered to be an important cause of suicide. The association between Val66Met (rs6265) polymorphism of the BDNF gene and suicide behavior has been increasingly studied. The aim of this study was to perform a meta-an...
journal_title：Journal of psychiatric research
pub_type： 杂志文章,meta分析,评审
doi：10.1016/j.jpsychires.2017.07.020
更新日期：2017-11-01 00:00:00
abstract：PURPOSE:Beyond the effects of the coronavirus pandemic on the public's health, the length of lockdown and its possible psychological impacts on populations is heavily debated. However, the consequences of lockdown on psychotic symptoms have been poorly investigated. METHODS:An online survey was run from April 13 to Ma...
journal_title：Journal of psychiatric research
pub_type： 杂志文章
doi：10.1016/j.jpsychires.2020.12.042
更新日期：2020-12-21 00:00:00
abstract：:Research indicates that distress tolerance exhibits a complicated relationship with risk factors for suicidal behavior. Specifically, low self-reported distress tolerance has been linked to perceived burdensomeness and thwarted belongingness. Contrastingly, high self-reported distress tolerance has been linked to the ...
journal_title：Journal of psychiatric research
pub_type： 杂志文章
doi：10.1016/j.jpsychires.2012.02.015
更新日期：2012-06-01 00:00:00
abstract：OBJECTIVE:To examine gender differences in the associations of levels of pain interference and psychiatric disorders among a nationally representative sample of adult men and women. METHOD:Chi-square tests and multinomial logistic regression analyses were performed on data obtained from the National Epidemiologic Surv...
journal_title：Journal of psychiatric research
pub_type： 杂志文章
doi：10.1016/j.jpsychires.2011.09.004
更新日期：2012-01-01 00:00:00
abstract：:Child maltreatment (CM) is a global issue with serious lifelong consequences. In fact, maltreatment during childhood might be an important risk factor for the development of psychiatric disorders. Furthermore, previous studies showed a strong relationship between telomere length (TL) and early life stress. Considering...
journal_title：Journal of psychiatric research
pub_type： 杂志文章
doi：10.1016/j.jpsychires.2018.10.012
更新日期：2018-12-01 00:00:00
abstract：:Molecular knowledge about schizophrenia--a psychotic, multifactorial mental disorder that affects about 1% of the population worldwide--is limited and no diagnostic biomarkers are available. The comparative proteome analysis of human brain tissue from patients with schizophrenia and healthy controls may supply useful ...
journal_title：Journal of psychiatric research
pub_type： 杂志文章
doi：10.1016/j.jpsychires.2010.03.003
更新日期：2010-10-01 00:00:00
abstract：:Despite the fact that the majority of currently available treatment guidelines propose antidepressants as the first-line pharmacological therapy for posttraumatic stress disorder (PTSD), a substantial portion of patients fail to show an adequate response following this type of treatment. In this context, a number of s...
journal_title：Journal of psychiatric research
pub_type： 杂志文章,meta分析,评审
doi：10.1016/j.jpsychires.2014.05.003
更新日期：2014-09-01 00:00:00
abstract：:Earthquakes are a common and deadly natural disaster, with roughly one-quarter of survivors subsequently developing posttraumatic stress disorder (PTSD). Despite progress identifying risk factors, limited research has examined how to combine variables into an optimized post-earthquake PTSD prediction tool that could b...
journal_title：Journal of psychiatric research
pub_type： 杂志文章
doi：10.1016/j.jpsychires.2017.09.010
更新日期：2018-01-01 00:00:00
abstract：:The typical reliance on self-report questionnaires in retrospective case-control studies of childhood abuse and psychotic disorders has been criticised, due to the potential for recall bias associated with, amongst other factors, cognitive impairments and detachment from reality, among individuals with psychosis. One ...
journal_title：Journal of psychiatric research
pub_type： 杂志文章
doi：10.1016/j.jpsychires.2020.02.002
更新日期：2020-04-01 00:00:00
