Abstract:
OBJECTIVES:While the pathophysiology of bipolar disorder (BD) remains to be elucidated, postmortem and neuroimaging studies have suggested that abnormalities in the dorsolateral prefrontal cortex (DLPFC) are implicated. We compared the levels of specific brain chemicals of interest measured with proton magnetic resonance spectroscopy ((1)H MRS) in medication-free BD subjects and age- and gender-matched healthy controls. We hypothesized that BD subjects would present abnormal cellular metabolism within the DLPFC, as reflected by lower N-acetyl-aspartate (NAA) and creatine + phosphocreatine (Cr + PCr). METHODS:Thirty-two medication-free BD subjects (33.8 +/- 10.2 years) and 32 matched controls (33.8 +/- 9.0 years) underwent a short echo-time (TE = 30 ms) (1)H MRS. An 8-cm(3) single voxel was placed in the left DLPFC, and individual concentrations of NAA, Cr + PCr, choline-containing compounds (GPC + PC), myo-inositol, and glutamate were obtained, using the water signal as an internal reference. RESULTS:BD subjects had lower Cr + PCr [F((1,62)) = 5.85; p = 0.018; one-way analysis of variance (ANOVA)] and lower GPC + PC [F((1,62)) = 5.79; p = 0.019; one-way ANOVA] levels in the left DLPFC. No significant differences were observed for other brain metabolites. CONCLUSIONS:These findings provide further evidence that the pathophysiology of BD involves impairment in the DLPFC. Our findings can be interpreted as evidence for reduced cellular energy and phospholipid metabolism, consistent with the hypothesis of mitochondrial dysfunction in BD.
journal_name
Bipolar Disordjournal_title
Bipolar disordersauthors
Frey BN,Stanley JA,Nery FG,Monkul ES,Nicoletti MA,Chen HH,Hatch JP,Caetano SC,Ortiz O,Kapczinski F,Soares JCdoi
10.1111/j.1399-5618.2007.00454.xsubject
Has Abstractpub_date
2007-06-01 00:00:00pages
119-27eissn
1398-5647issn
1399-5618pii
BDI454journal_volume
9 Suppl 1pub_type
杂志文章abstract::Bipolar disorder is a complex condition that includes symptoms of mania, depression, and often anxiety. Diagnosing and treating bipolar depression is challenging, with the disorder often being diagnosed as unipolar depression. In addition, comorbid anxiety can be a significant detractor to successful outcomes, increas...
journal_title:Bipolar disorders
pub_type: 杂志文章,评审
doi:10.1111/j.1399-2406.2003.00061.x
更新日期:2003-01-01 00:00:00
abstract:OBJECTIVES:We investigated the neuroprotective effects of lithium in an experimental neurodegeneration model gated to kainate (KA) receptor activation. METHODS:The hippocampus from KA-treated mice and hippocampal cell cultures were used to evaluate the pathways regulated by chronic lithium pretreatment in both in vivo...
journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/j.1399-5618.2010.00825.x
更新日期:2010-06-01 00:00:00
abstract:OBJECTIVE:To review research findings on clinical effects of discontinuing lithium maintenance treatment. METHODS:Data from studies reported since 1970 plus our recent findings were updated. RESULTS:Discontinuing lithium maintenance treatment led to marked increases of early affective morbidity and suicidal risk. Gra...
journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1034/j.1399-5618.1999.10106.x
更新日期:1999-09-01 00:00:00
abstract:OBJECTIVES:Considerable preclinical biochemical and behavioral data suggest that protein kinase C inhibition would bring about antimanic effects. Notably, the structurally highly dissimilar antimanic agents lithium and valproate, when administered in therapeutically relevant paradigms, attenuate protein kinase C [corre...
journal_title:Bipolar disorders
pub_type: 杂志文章,随机对照试验
doi:10.1111/j.1399-5618.2007.00530.x
更新日期:2007-09-01 00:00:00
abstract:OBJECTIVE:We conducted a study of clinical presentation and family history in patients responsive to either of two commonly used mood stabilizers, lithium and lamotrigine. METHODS:The sample included 164 subjects from 21 families of bipolar probands, 14 responders to lithium and seven to lamotrigine. Diagnostic inform...
journal_title:Bipolar disorders
pub_type: 临床试验,杂志文章
doi:10.1034/j.1399-5618.2003.00026.x
更新日期:2003-04-01 00:00:00
abstract:OBJECTIVES:Bipolar disorder is associated with positive emotion disturbance, though it is less clear which specific positive emotions are affected. METHODS:The present study examined differences among distinct positive emotions in recovered bipolar disorder (BD) patients (n = 55) and nonclinical controls (NC) (n = 32)...
journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/j.1399-5618.2009.00679.x
更新日期:2009-05-01 00:00:00
abstract:OBJECTIVES:Although clinical evidence suggests important differences between unipolar mania and bipolar-I disorder (BP-I), epidemiological data are limited. Combining data from nine population-based studies, we compared subjects with mania (M) or mania with mild depression (Md) to those with BP-I with both manic and de...
journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/bdi.12732
更新日期:2019-08-01 00:00:00
abstract:OBJECTIVES:We sought to determine if postpartum mood symptoms and depressive episodes exhibit familial aggregation in bipolar I pedigrees. METHODS:A total of 1,130 women were interviewed with the Diagnostic Interview for Genetic Studies as part of the National Institute of Mental Health (NIMH) Genetics Initiative Bipo...
journal_title:Bipolar disorders
pub_type: 杂志文章,多中心研究
doi:10.1111/j.1399-5618.2008.00455.x
更新日期:2008-02-01 00:00:00
abstract:OBJECTIVES:To examine the nature of executive deficits in euthymic patients with bipolar disorder (BD). METHODS:Fifteen euthymic BD patients and 13 controls were administered a battery of executive tasks including verbal fluency, Stroop, Theory of Mind (ToM) tests and selected subtests from the Cambridge Neuropsycholo...
journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/j.1399-5618.2005.00254.x
更新日期:2005-01-01 00:00:00
abstract:OBJECTIVE:Although bipolar disorder has high heritability, the onset occurs during several decades of life, suggesting that social and environmental factors may have considerable influence on disease onset. This study examined the association between the age of onset and sunlight at the location of onset. METHOD:Data ...
journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/j.1399-5618.2012.01025.x
更新日期:2012-09-01 00:00:00
abstract:OBJECTIVES:Although it is well established that euthymic patients with bipolar disorder can have cognitive impairment, substantial heterogeneity exists and little is known about the extent and severity of impairment within the bipolar II disorder subtype. Therefore, the main aim of this study was to analyze cognitive v...
journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/bdi.12385
更新日期:2016-05-01 00:00:00
abstract:OBJECTIVES:The enzyme glycogen synthase kinase-3β (GSK3β) is involved in the mechanisms of action of lithium and may play a role in relation to affective states in bipolar disorder. The objectives of the present study were to compare the activity of GSK-3β (measured as levels of phosphorylated GSK-3β [p-GSK-3β]) betwee...
journal_title:Bipolar disorders
pub_type: 杂志文章,多中心研究
doi:10.1111/bdi.12400
更新日期:2016-06-01 00:00:00
abstract:OBJECTIVES:Experts have debated the ability of patients with bipolar illness to consent to research participation when manic. We compared 25 euthymic bipolar and 26 manic bipolar patients in their understanding of three hypothetical studies of varying complexity. METHODS:Hypothetical studies were presented as written ...
journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/j.1399-5618.2007.00525.x
更新日期:2008-03-01 00:00:00
abstract:OBJECTIVES:Electroconvulsive therapy is an effective treatment for bipolar depression, but there are concerns about whether it causes long-term neurocognitive impairment. METHODS:In this multicenter randomized controlled trial, in-patients with treatment-resistant bipolar depression were randomized to either algorithm...
journal_title:Bipolar disorders
pub_type: 杂志文章,随机对照试验
doi:10.1111/bdi.12594
更新日期:2018-09-01 00:00:00
abstract:BACKGROUND:Bipolar illness is frequently misdiagnosed. Several studies have focused on the underdiagnosis of this condition and the frequent long delay in its recognition. However, the illness is difficult to diagnose and many of its symptoms are shared by other conditions. In order to determine the accuracy of the dia...
journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/j.1399-5618.2007.00465.x
更新日期:2007-09-01 00:00:00
abstract:OBJECTIVES:To investigate the use of transcranial direct current stimulation (tDCS) for enhancing working memory and sustained attention in euthymic patients with bipolar disorder. METHODS:Fifteen patients with bipolar disorder received anodal left prefrontal tDCS with an extracephalic cathode (prefrontal condition), ...
journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/bdi.12350
更新日期:2015-12-01 00:00:00
abstract:OBJECTIVE:To investigate whether treatment with lithium in patients with mania or bipolar disorder is associated with a decreased rate of subsequent dementia. METHODS:Linkage of register data on prescribed lithium in all patients discharged from psychiatric health care service with a diagnosis of mania or bipolar diso...
journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/j.1399-5618.2009.00788.x
更新日期:2010-02-01 00:00:00
abstract:OBJECTIVES:Impaired verbal declarative memory has been proposed as a trait marker for adult bipolar disorder. However, similar impairments in juvenile-onset bipolar disorder have not been yet documented. Here, we assessed declarative memory in a large sample of clinically well-characterized children with bipolar disord...
journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/j.1399-5618.2005.00267.x
更新日期:2005-12-01 00:00:00
abstract:OBJECTIVE:Drug repurposing is an increasingly promising idea in many fields of medicine. We systematically used Danish nation-wide population-based registers to investigate whether continued use of non-aspirin non-steroidal anti-inflammatory drugs (NSAIDs), low-dose aspirin, high-dose aspirin, statins, allopurinol, and...
journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/bdi.12772
更新日期:2019-08-01 00:00:00
abstract:OBJECTIVES:To investigate whether first admission with mania is associated with the occurrence of death in the family or with major stressful life events and to explore whether the associations change with age. METHODS:Case register study with linkage of the Danish Psychiatric Central Research Register, including data...
journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/j.1399-5618.2004.00102.x
更新日期:2004-04-01 00:00:00
abstract:OBJECTIVES:The mood-stabilizing drug valproic acid (VPA) exerts a neurotrophic effect on the human neuroblastoma cell line, SH-SY5Y. We aimed to establish whether other mood-stabilizing drugs have a similar action and which signalling pathways mediate this process. METHODS:We analysed the effects of the mood stabilize...
journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/j.1399-5618.2004.00164.x
更新日期:2005-02-01 00:00:00
abstract:OBJECTIVES:Suicide is a leading cause of death in the USA. Although factors elevating long-term risk for suicide are known and include bipolar disorder, signs of imminent suicide risk are difficult to study and not well specified. Acute risk determinations must be made to determine the appropriate level of care to safe...
journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/bdi.12092
更新日期:2013-08-01 00:00:00
abstract:OBJECTIVES:A high prevalence rate of bipolar disorder (BP) comorbid with alcohol dependence (AD) (BP+AD) in Western patients with BP has been reported, but whether this is true for Han Chinese with BP is uncertain. We explored the prevalence of BP+AD in a Han Chinese population with BP, and investigated the effect of a...
journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/bdi.12313
更新日期:2015-08-01 00:00:00
abstract:OBJECTIVE:Inositol is a constituent of the intracellular phosphatidyl inositol (PI) second messenger system, which is linked to various neurotransmitter receptors. Inositol crosses the blood-brain barrier in pharmacological doses, and has shown efficacy in a small double-blind study of unipolar depression. This pilot s...
journal_title:Bipolar disorders
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1034/j.1399-5618.2000.020107.x
更新日期:2000-03-01 00:00:00
abstract:OBJECTIVES:To determine the effects of mood and additional clinical variables on different domains of current interviewer-rated social adjustment reflecting the reported behaviour of patients with bipolar disorder (BD). METHOD:Multi-center cross-sectional study employing multiple linear regression to investigate wheth...
journal_title:Bipolar disorders
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1111/j.1399-5618.2007.00343.x
更新日期:2007-02-01 00:00:00
abstract:BACKGROUND:Neurocognitive deficits are prevalent, persistent, and implicated as mediators of functional impairment in adults with bipolar disorder. Notwithstanding progress in the development of pharmacological treatments for various phases of bipolar disorder, no available treatment has been proven to be reliably effi...
journal_title:Bipolar disorders
pub_type: 杂志文章,随机对照试验
doi:10.1111/bdi.12006
更新日期:2012-11-01 00:00:00
abstract:OBJECTIVES:Recent evidence has demonstrated that corpus callosum maturation follows a similar developmental timeline to cognitive processes. Bipolar disorder (BD) has been associated with disruptions in error processing, response inhibition, and motor functioning, which are mediated by underlying white matter structure...
journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/bdi.12247
更新日期:2014-12-01 00:00:00
abstract:OBJECTIVES:The question of whether there is a continuum or a dichotomy among patients with schizophrenia (SZ) and bipolar disorders (BD) has not been clearly resolved and remains a challenge. Thus, the identification of specific biomarkers of these disorders might be helpful. The present study investigated the volume o...
journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/bdi.12526
更新日期:2017-09-01 00:00:00
abstract:OBJECTIVES:Mental imagery abnormalities occur across psychopathologies and are hypothesized to drive emotional difficulties in bipolar disorder (BD). A comprehensive assessment of mental imagery in BD is lacking. We aimed to test whether (i) mental imagery abnormalities (abnormalities in cognitive stages and subjective...
journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/bdi.12453
更新日期:2016-12-01 00:00:00
abstract:OBJECTIVES:Population isolates offer several advantages for those hoping to identify predisposition genes for bipolar disorder (BP). In this review article, the rationale for performing gene mapping studies in this type of population and the results of genetic mapping studies performed to date in population isolates ar...
journal_title:Bipolar disorders
pub_type: 杂志文章,评审
doi:10.1034/j.1399-5618.2001.30605.x
更新日期:2001-12-01 00:00:00