Sex differences in bipolar disorder

a review of neuroimaging findings and new evidence

Jigar Jogia, Danai Dima, Sophia Frangou

Research output: Contribution to journalArticle

Abstract

Objectives: The sex of an individual is known to modulate the clinical presentation of bipolar disorder (BD), but little is known as to whether there are significant sex-by-diagnosis interactions on the brain structural and functional correlates of BD. Methods: We conducted a literature review of magnetic resonance imaging (MRI) studies in BD, published between January 1990 and December 2010, reporting on the effects of sex and diagnosis. In the absence of any functional MRI (fMRI) studies, this review was supplemented by original data analyses focusing on sex-by-diagnosis interactions on patterns of brain activation obtained during tasks of working memory, incentive decision-making, and facial affect processing. Results: We found no support for a sex-by-diagnosis interaction in global gray or white matter volume. Evidence regarding regional volumetric measures is limited, but points to complex interactions between sex and diagnosis with developmental and temperamental factors within limbic and prefrontal regions. Sex-by-diagnosis interactions were noted in the pattern of activation within the basal ganglia during incentive decision-making and within ventral prefrontal regions during facial affect processing. Conclusions: Potential sex-by-diagnosis interactions influencing the brain structural and functional correlates of disease expression in BD have received limited attention. Our data suggest that the sex of an individual modulates structure and function within subcortical and cortical regions implicated in disease expression.
Original languageEnglish
Pages (from-to)461-471
Number of pages11
JournalBipolar Disorders
Volume14
Issue number4
Early online date25 May 2012
DOIs
Publication statusPublished - Jun 2012

Fingerprint

Bipolar Disorder
Neuroimaging
Sex Characteristics
Motivation
Decision Making
Brain
Magnetic Resonance Imaging
Basal Ganglia
Short-Term Memory

Keywords

  • bipolar disorder
  • brain function
  • brain structure
  • decision making
  • facial affect
  • sex
  • working memory

Cite this

Jogia, Jigar ; Dima, Danai ; Frangou, Sophia. / Sex differences in bipolar disorder : a review of neuroimaging findings and new evidence. In: Bipolar Disorders. 2012 ; Vol. 14, No. 4. pp. 461-471.
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Sex differences in bipolar disorder : a review of neuroimaging findings and new evidence. / Jogia, Jigar; Dima, Danai; Frangou, Sophia.

In: Bipolar Disorders, Vol. 14, No. 4, 06.2012, p. 461-471.

Research output: Contribution to journalArticle

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