TY  - JOUR
PY  - 2017//
TI  - Subcortical brain structure and suicidal behaviour in major depressive disorder: a meta-analysis from the ENIGMA-MDD working group
JO  - Translational psychiatry
A1  - Rentería, M. E.
A1  - Schmaal, L.
A1  - Hibar, D. P.
A1  - Couvy-Duchesne, B.
A1  - Strike, L. T.
A1  - Mills, N. T.
A1  - de Zubicaray, G. I.
A1  - McMahon, K. L.
A1  - Medland, S. E.
A1  - Gillespie, N. A.
A1  - Hatton, S. N.
A1  - Lagopoulos, J.
A1  - Veltman, D. J.
A1  - van der Wee, N.
A1  - van Erp, T. G. M.
A1  - Wittfeld, K.
A1  - Grabe, H. J.
A1  - Block, A.
A1  - Hegenscheid, K.
A1  - Völzke, H.
A1  - Veer, I. M.
A1  - Walter, H.
A1  - Schnell, K.
A1  - Schramm, E.
A1  - Normann, C.
A1  - Schoepf, D.
A1  - Konrad, C.
A1  - Zurowski, B.
A1  - Godlewska, B. R.
A1  - Cowen, P. J.
A1  - Penninx, B. W. J. H.
A1  - Jahanshad, N.
A1  - Thompson, P. M.
A1  - Wright, M. J.
A1  - Martin, N. G.
A1  - Christensen, H.
A1  - Hickie, I. B.
SP  - e1116
EP  - e1116
VL  - 7
IS  - 5
N2  - The aetiology of suicidal behaviour is complex, and knowledge about its neurobiological mechanisms is limited. Neuroimaging methods provide a noninvasive approach to explore the neural correlates of suicide vulnerability in vivo. The ENIGMA-MDD Working Group is an international collaboration evaluating neuroimaging and clinical data from thousands of individuals collected by research groups from around the world. Here we present analyses in a subset sample (n=3097) for whom suicidality data were available. Prevalence of suicidal symptoms among major depressive disorder (MDD) cases ranged between 29 and 69% across cohorts. We compared mean subcortical grey matter volumes, lateral ventricle volumes and total intracranial volume (ICV) in MDD patients with suicidal symptoms (N=451) vs healthy controls (N=1996) or MDD patients with no suicidal symptoms (N=650). MDD patients reporting suicidal plans or attempts showed a smaller ICV (P=4.12 × 10(-3)) or a 2.87% smaller volume compared with controls (Cohen's d=-0.284). In addition, we observed a nonsignificant trend in which MDD cases with suicidal symptoms had smaller subcortical volumes and larger ventricular volumes compared with controls. Finally, no significant differences (P=0.28-0.97) were found between MDD patients with and those without suicidal symptoms for any of the brain volume measures. This is by far the largest neuroimaging meta-analysis of suicidal behaviour in MDD to date. Our results did not replicate previous reports of association between subcortical brain structure and suicidality and highlight the need for collecting better-powered imaging samples and using improved suicidality assessment instruments.<p />  <p>Language: en</p>
LA  - en
SN  - 2158-3188
UR  - http://dx.doi.org/10.1038/tp.2017.84
ID  - ref1
ER  -