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Hjärnstrukturförändringar till följd av farmakologisk behandling vid bipolär sjukdom

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Hjärnstrukturförändringar till följd av farmakologisk behandling vid bipolär sjukdom

Inlägg av Onddruid i ons feb 17 2016, 11:06

http://medicalxpress.com/news/2016-02-brain-effects-psychopharmacological-treatment-bipolar.html

MRI studies comparing patients with bipolar disorder and healthy volunteers have demonstrated subtle grey matter volume deficits in patients, especially in brain regions underpinning mood regulation, as well as white matter disorganization in tracts interconnecting distributed brain regions. However studies tend to display considerable heterogeneity in their findings. In this review of in vivo neuroanatomical imaging studies of bipolar disorder to date, McDonald discusses the evidence that differential usage of psychopharmacological treatment is associated with alterations in neuroanatomy and thus an important source of this heterogeneity.

When greater weight is given to more powerful studies, with large numbers or with longitudinal design where intra-individual variation after initiation of medication is examined, substantial evidence emerges that medications used in bipolar disorder have a predominantly ameliorative affect on brain anatomy. This includes evidence that use of mood stabilizers such as lithium is associated with increased grey matter volume especially in brain regions underpinning mood regulation, as well as normalization of white matter disconnectivity.

#artikel #review #medicin #hjärnan #neurologi #läkemedel

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