Abstract:
OBJECTIVE:Diffusion-weighted magnetic resonance imaging (MRI) has shown increased sensitivity in detecting brain white matter disease compared to traditional T2-weighted MRI. Diffusion-weighted imaging (DWI) can quantitatively assess the microstructural integrity of white matter using the average apparent diffusion coefficient (ADC(av)), a measure of the extent to which water molecules move freely within tissue. On the basis of numerous studies suggesting white matter disease in bipolar patients, particularly patients with more severe illness, this study aimed to test the utility of DWI in assessing the white matter integrity of bipolar patients with severe illness. METHODS:The existing MRI scans of eight bipolar patients and eight age-matched controls with neurological illness were examined retrospectively. ADC(av) values for pixels within white matter regions of interest (ROIs) were calculated and used to plot ADC(av) frequency histograms for each ROI. Mean ADC(av) values for the two groups were then compared by ANCOVA. RESULTS:The bipolar mean ADC(av) (0.855 +/- 0.051 x 10(-3) mm2/s) for combined white matter ROIs significantly exceeded that of controls (0.799 +/- 0.046 x 10(-3) mm2/s), while covarying for age (F = 4.47, df = 3, p = 0.025). CONCLUSIONS:This is the first report of an elevated ADC(av) in the white matter of a group of patients with bipolar disorder. In this group of patients with severe illness, increased white matter ADC(av) suggests microstructural changes consistent with decreased white matter integrity. DWI may be an additional, useful tool to assess white matter abnormalities in bipolar disorder.
journal_name
Bipolar Disordjournal_title
Bipolar disordersauthors
Regenold WT,D'Agostino CA,Ramesh N,Hasnain M,Roys S,Gullapalli RPdoi
10.1111/j.1399-5618.2006.00281.xkeywords:
subject
Has Abstractpub_date
2006-04-01 00:00:00pages
188-95issue
2eissn
1398-5647issn
1399-5618pii
BDI281journal_volume
8pub_type
杂志文章abstract:OBJECTIVES:Diagnosis and management of bipolar disorder (BD) are limited by the absence of available biomarkers. Allostatic load (AL) represents the strain that stress, including the effects of acute phases and inter-episode chronic mood instability, exerts on interconnected biological systems. This study aimed to oper...
journal_title:Bipolar disorders
pub_type: 杂志文章
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journal_title:Bipolar disorders
pub_type: 杂志文章,多中心研究
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更新日期:2017-09-01 00:00:00
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pub_type: 杂志文章
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journal_title:Bipolar disorders
pub_type: 杂志文章,meta分析
doi:10.1111/bdi.12612
更新日期:2018-05-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/bdi.12128
更新日期:2013-12-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章
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更新日期:2017-03-01 00:00:00
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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
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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:To compare the quality of life (QOL) of patients having dual diagnosis of bipolar affective disorder and substance dependence with those having either diagnosis alone and with healthy controls. METHODS:Cross-sectional assessment of the four groups of subjects was made. Euthymic bipolar patients and those su...
journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/j.1399-5618.2004.00173.x
更新日期:2005-04-01 00:00:00
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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
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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::Lithium, the major drug used to treat manic depressive illness, robustly protects cultured rat brain neurons from glutamate excitotoxicity mediated by N-methyl-D-aspartate (NMDA) receptors. The lithium neuroprotection against glutamate excitotoxiciy is long-lasting, requires long-term pretreatment and occurs at therap...
journal_title:Bipolar disorders
pub_type: 杂志文章,评审
doi:10.1034/j.1399-5618.2002.01179.x
更新日期:2002-04-01 00:00:00
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pub_type: 杂志文章
doi:10.1111/j.1399-5618.2007.00413.x
更新日期:2007-11-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/bdi.12164
更新日期:2014-05-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/bdi.12906
更新日期:2020-09-01 00:00:00
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pub_type: 杂志文章
doi:10.1111/j.1399-5618.2009.00701.x
更新日期:2009-06-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/j.1399-5618.2006.00373.x
更新日期:2006-10-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章,评审
doi:10.1034/j.1399-5618.2003.00033.x
更新日期:2003-06-01 00:00:00
abstract::Calcium channel antagonists (CCAs) have many clinical applications, including their possible use in the treatment of bipolar disorder. Two justifications for this last application are some overlap in physiological activities of CCAs with those of lithium, and a possible association between bipolar disorder and calcium...
journal_title:Bipolar disorders
pub_type: 杂志文章,评审
doi:10.1034/j.1399-5618.2000.020204.x
更新日期:2000-06-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章,多中心研究
doi:10.1111/j.1399-5618.2005.00237.x
更新日期:2005-10-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/bdi.12770
更新日期:2019-06-01 00:00:00
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pub_type: 杂志文章,评审
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更新日期:2020-02-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/j.1399-5618.2005.00216.x
更新日期:2005-08-01 00:00:00
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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.1399-5618.2011.00975.x
更新日期:2012-02-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章,meta分析,评审
doi:10.1111/j.1399-5618.2012.01033.x
更新日期:2012-08-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/j.1399-5618.2008.00582.x
更新日期:2008-06-01 00:00:00
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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
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pub_type: 临床试验,杂志文章
doi:10.1111/j.1399-5618.2006.00335.x
更新日期:2006-08-01 00:00:00
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journal_title:Bipolar disorders
pub_type: 杂志文章
doi:10.1111/bdi.13048
更新日期:2021-01-29 00:00:00
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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