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Prefrontal Cortical Volume in Childhood-Onset Major Depression
Preliminary Findings
Carla L. Nolan;
Gregory J. Moore, PhD;
Rachel Madden;
Tiffany Farchione;
Marla Bartoi, PhD;
Elisa Lorch, MA;
Carol M. Stewart, RNC;
David R. Rosenberg, MD
Arch Gen Psychiatry. 2002;59:173-179.
Background Abnormalities in the prefrontal cortex have been implicated in the pathogenesis
of major depressive disorder (MDD). To our knowledge, no prior study has examined
prefrontal cortical anatomy in pediatric patients with MDD near the onset
of illness before receiving treatment.
Methods Volumetric magnetic resonance imaging studies were conducted in 22 psychotropic-naive
patients with MDD, aged 9 to 17 years (10 males and 12 females), and 22 case-matched
healthy comparison control subjects. Twelve of the 22 patients with MDD had
at least 1 first-degree relative with MDD (familial MDD), whereas 10 had no
clear family history of MDD (nonfamilial MDD).
Results Patients with nonfamilial MDD had significantly larger left-sided but
not right-sided prefrontal cortical volumes than patients with familial MDD
(17% larger) and controls (11% larger). Left-sided and right-sided prefrontal
cortical volumes did not differ significantly between patients with familial
MDD and controls.
Conclusions These results provide new evidence of prefrontal cortical alterations
in pediatric MDD that may differ in familial and nonfamilial subtypes of MDD.
Our findings must be considered preliminary, however, in view of the small
sample size.
From the Departments of Psychiatry and Behavioral Neurosciences (Mss
Nolan, Madden, Farchione, Lorch, and Stewart and Drs Moore, Bartoi, and Rosenberg),
Radiology (Dr Moore), and Pediatrics (Dr Rosenberg), Wayne State University
School of Medicine, Detroit, Mich.
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