White matter disruptions in patients with bipolar disorder

Lucija Abramovic; Marco P.M. Boks; Annabel Vreeker; Sanne Verkooijen; Annet H. van Bergen; Roel A. Ophoff; René S. Kahn; Neeltje E.M. van Haren

doi:10.1016/j.euroneuro.2018.01.001

White matter disruptions in patients with bipolar disorder

Lucija Abramovic, Marco P.M. Boks, Annabel Vreeker, Sanne Verkooijen, Annet H. van Bergen, Roel A. Ophoff, René S. Kahn, Neeltje E.M. van Haren^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

34 Citations (Scopus)

Abstract

Bipolar disorder (BD) patients show aberrant white matter microstructure compared to healthy controls but little is known about the relation with clinical characteristics. We therefore investigated the relation of white matter microstructure with the main pharmacological treatments as well its relation with IQ. Patients with BD (N = 257) and controls (N = 167) underwent diffusion tensor imaging (DTI) and comprehensive clinically assessments including IQ estimates. DTI images were analyzed using tract-based spatial statistics. Fractional anisotropy (FA) and Mean Diffusivity (MD) were determined. Patients had significantly lower FA and higher MD values throughout the white matter skeleton compared to controls. Within the BD patients, lithium use was associated with higher FA and lower MD. Antipsychotic medication use in the BD patients was not associated with FA but, in contrast to lithium, was associated with higher MD. IQ was significantly positively correlated with FA and negatively with MD in patients as well as in controls. In this large DTI study we found evidence for marked differences in FA and MD particularly in (but not restricted to) corpus callosum, between BD patients and controls. This effect was most pronounced in lithium-free patients, implicating that lithium affects white matter microstructure and attenuates differences associated with bipolar disorder. Effects of antipsychotic medication intake were absent in FA and only subtle in MD relative to those of lithium. The abnormal white matter microstructure was associated with IQ but not specifically for either group.

Original language	English
Pages (from-to)	743-751
Number of pages	9
Journal	European Neuropsychopharmacology
Volume	28
Issue number	6
DOIs	https://doi.org/10.1016/j.euroneuro.2018.01.001
Publication status	Published - Jun 2018
Externally published	Yes

Bibliographical note

Funding Information:
This study was supported by NIMH grant number: R01 MH090553 (to RAO). The NIMH had no further role in study design, in the collection, analysis and interpretation of the data, in the writing of the report, and in the decision to submit the paper for publication. The authors of this paper do not have any commercial associations that might pose a conflict of interest in connection with this manuscript.

Publisher Copyright:
© 2018 Elsevier B.V. and ECNP

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10.1016/j.euroneuro.2018.01.001

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title = "White matter disruptions in patients with bipolar disorder",

abstract = "Bipolar disorder (BD) patients show aberrant white matter microstructure compared to healthy controls but little is known about the relation with clinical characteristics. We therefore investigated the relation of white matter microstructure with the main pharmacological treatments as well its relation with IQ. Patients with BD (N = 257) and controls (N = 167) underwent diffusion tensor imaging (DTI) and comprehensive clinically assessments including IQ estimates. DTI images were analyzed using tract-based spatial statistics. Fractional anisotropy (FA) and Mean Diffusivity (MD) were determined. Patients had significantly lower FA and higher MD values throughout the white matter skeleton compared to controls. Within the BD patients, lithium use was associated with higher FA and lower MD. Antipsychotic medication use in the BD patients was not associated with FA but, in contrast to lithium, was associated with higher MD. IQ was significantly positively correlated with FA and negatively with MD in patients as well as in controls. In this large DTI study we found evidence for marked differences in FA and MD particularly in (but not restricted to) corpus callosum, between BD patients and controls. This effect was most pronounced in lithium-free patients, implicating that lithium affects white matter microstructure and attenuates differences associated with bipolar disorder. Effects of antipsychotic medication intake were absent in FA and only subtle in MD relative to those of lithium. The abnormal white matter microstructure was associated with IQ but not specifically for either group.",

author = "Lucija Abramovic and Boks, {Marco P.M.} and Annabel Vreeker and Sanne Verkooijen and {van Bergen}, {Annet H.} and Ophoff, {Roel A.} and Kahn, {Ren{\'e} S.} and {van Haren}, {Neeltje E.M.}",

note = "Funding Information: This study was supported by NIMH grant number: R01 MH090553 (to RAO). The NIMH had no further role in study design, in the collection, analysis and interpretation of the data, in the writing of the report, and in the decision to submit the paper for publication. The authors of this paper do not have any commercial associations that might pose a conflict of interest in connection with this manuscript. Publisher Copyright: {\textcopyright} 2018 Elsevier B.V. and ECNP",

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doi = "10.1016/j.euroneuro.2018.01.001",

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AU - Abramovic, Lucija

AU - Boks, Marco P.M.

AU - Vreeker, Annabel

AU - Verkooijen, Sanne

AU - van Bergen, Annet H.

AU - Ophoff, Roel A.

AU - Kahn, René S.

AU - van Haren, Neeltje E.M.

N1 - Funding Information: This study was supported by NIMH grant number: R01 MH090553 (to RAO). The NIMH had no further role in study design, in the collection, analysis and interpretation of the data, in the writing of the report, and in the decision to submit the paper for publication. The authors of this paper do not have any commercial associations that might pose a conflict of interest in connection with this manuscript. Publisher Copyright: © 2018 Elsevier B.V. and ECNP

PY - 2018/6

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AB - Bipolar disorder (BD) patients show aberrant white matter microstructure compared to healthy controls but little is known about the relation with clinical characteristics. We therefore investigated the relation of white matter microstructure with the main pharmacological treatments as well its relation with IQ. Patients with BD (N = 257) and controls (N = 167) underwent diffusion tensor imaging (DTI) and comprehensive clinically assessments including IQ estimates. DTI images were analyzed using tract-based spatial statistics. Fractional anisotropy (FA) and Mean Diffusivity (MD) were determined. Patients had significantly lower FA and higher MD values throughout the white matter skeleton compared to controls. Within the BD patients, lithium use was associated with higher FA and lower MD. Antipsychotic medication use in the BD patients was not associated with FA but, in contrast to lithium, was associated with higher MD. IQ was significantly positively correlated with FA and negatively with MD in patients as well as in controls. In this large DTI study we found evidence for marked differences in FA and MD particularly in (but not restricted to) corpus callosum, between BD patients and controls. This effect was most pronounced in lithium-free patients, implicating that lithium affects white matter microstructure and attenuates differences associated with bipolar disorder. Effects of antipsychotic medication intake were absent in FA and only subtle in MD relative to those of lithium. The abnormal white matter microstructure was associated with IQ but not specifically for either group.

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ER -

White matter disruptions in patients with bipolar disorder

Abstract

Bibliographical note

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