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Preserved white matter in unmedicated pediatric bipolar disorder

Abstract : White matter (WM) abnormalities have been reported in bipolar disorder (BD) patients, as well as in their non-BD relatives, both children and adults. Although it is considered an emerging vulnerability marker for BD, there are no studies investigating WM alterations in pediatric unmedicated patients and young healthy offspring. In this study, we evaluated the presence of WM alterations in 18 pediatric, non medicated BD patients, as well as in 18 healthy offspring of BD type I parents and 20 healthy controls. 3T DT-MRI data were acquired and scans were processed with tract-based spatial statistics to provide measures of fractional anisotropy and diffusivity. We found no significant differences in WM microstructure between BD patients, healthy offspring and healthy controls. Previous studies that reported WM alterations investigated older subjects, either on medication (BD patients) or with psychiatric diagnoses other than BD (unaffected offspring). Our findings highlight the importance of the understanding of disease ontogeny and brain development dynamics in the search for early vulnerability markers for psychiatric disorders.
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https://hal.umontpellier.fr/hal-01945829
Contributeur : Anthony Herrada <>
Soumis le : mercredi 5 décembre 2018 - 15:31:15
Dernière modification le : vendredi 12 juin 2020 - 16:58:21

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Ana Maria A. Teixeira, Ana Kleinman, Marcus Zanetti, Marcel Jackowski, Fábio Duran, et al.. Preserved white matter in unmedicated pediatric bipolar disorder. Neuroscience Letters, Elsevier, 2014, 579, pp.41-45. ⟨10.1016/j.neulet.2014.06.061⟩. ⟨hal-01945829⟩

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