Diffuse cortical reduction of neuronal activity in unipolar major depression:: a retrospective analysis of 337 patients and 321 controls

被引:23
作者
Nikolaus, S [1 ]
Larisch, R [1 ]
Beu, M [1 ]
Vosberg, H [1 ]
Müller-Gärtner, HW [1 ]
机构
[1] Heinrich Heine Univ Hosp, Dept Nucl Med, D-40225 Dusseldorf, Germany
关键词
D O I
10.1097/00006231-200012000-00005
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 ; 100207 ; 1009 ;
摘要
Reduction of neuronal activity in frontocortical and limbic circuits is considered a characteristic of depression. WE aimed to test this hypothesis by pooling all available data from experimental literature. All investigations were included comparing regional cerebral blood flow (rCBF) or glucose metabolism (rCMRGlc) between acutely depressed unipolar major depressive patients and healthy controls. For cortical and subcortical regions we computed the percentage difference between depressives (n = 337) and controls (n = 321). In patients with unipolar major depression rCBF and rCMRGlc were lowered in left (-4.4%, P = 0.022) and right frontal (-3.2%, P = 0.053), left (-1.7%, P = 0.061) and right temporal(-3.0%, P = 0.003), left (-6.5%, P = 0.002), and right parietal (-8.8%, P = 0.001), and left (-6.6%:, P = 0.083) and right occipital cortex (-4.2%, P = 0.002). Moreover, there were reductions in left (-6.3%, P = 0.029) and right basal ganglia (-4.8%, P = 0.002), left (-3.4%, P = 0.114) and right thalamus (-3.1%, P = 0.036), and left limbic system (-2.2%, P = 0.127). Parameters were increased by 1.0% (P = 0.714) only in the right limbic system. There were no hemispheric asymmetries (P > 0.05). Moreover, there was no indication for an anterior-posterior gradient (P > 0.05), and thus no 'hypofrontality'. In contrast to the current view, the data indicate a diffuse cortical rather than regionalized reduction of neuronal activity in unipolar major depression. ((C) 2000 Lippincott Williams & Wilkins).
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页码:1119 / 1125
页数:7
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