Differential engagement of cognitive control regions and subgenual cingulate based upon presence or absence of comorbid anxiety with depression

Jenkins, Lisanne M.; Stange, Jonathan P.; Bessette, Katie L.; Chang, Yi Shin; Corwin, Samantha; Skerrett, Kristy A.; Patron, Victor; Zubieta, Jon Kar; Crane, Natania A.; Passarotti, Alessandra M.; Pine, Daniel S.; Langenecker, Scott A.

doi:10.1016/j.jad.2018.07.082

Cited by 19 publications

(1 citation statement)

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“…The CCN primarily regulates top-down affective responses and modulation of cognitive and attentional tasks (55, 56). Previous studies have found cognitive dysfunction in MDD patients, and escitalopram can improve DLPFC function and thus alleviate depression and cognitive symptoms (57,58). The precuneus, located medial to the parietal lobe, is one of the centers of the posterior DMN and is involved in self-related information processing and contextual memory processing (59).…”

Section: Discussionmentioning

confidence: 99%

Altered functional connectivity in first-episode and recurrent depression: A resting-state functional magnetic resonance imaging study

Sun

et al. 2022

Front. Neurol.

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BackgroundFunctional magnetic resonance imaging (fMRI) studies examining differences in the activity of brain networks between the first depressive episode (FDE) and recurrent depressive episode (RDE) are limited. The current study observed and compared the altered functional connectivity (FC) characteristics in the default mode network (DMN), cognitive control network (CCN), and affective network (AN) between the RDE and FDE. In addition, we further investigated the correlation between abnormal FC and clinical symptoms.MethodsWe recruited 32 patients with the RDE, 31 patients with the FDE, and 30 healthy controls (HCs). All subjects underwent resting-state fMRI. The seed-based FC method was used to analyze the abnormal brain networks in the DMN, CCN, and AN among the three groups and further explore the correlation between abnormal FC and clinical symptoms.ResultsOne-way analysis of variance showed significant differences the FC in the DMN, CCN, and AN among the three groups in the frontal, parietal, temporal, and precuneus lobes and cerebellum. Compared with the RDE group, the FDE group generally showed reduced FC in the DMN, CCN, and AN. Compared with the HC group, the FDE group showed reduced FC in the DMN, CCN, and AN, while the RDE group showed reduced FC only in the DMN and AN. Moreover, the FC in the left posterior cingulate cortices and the right inferior temporal gyrus in the RDE group were positively correlated with the 17-item Hamilton Rating Scale for Depression (HAMD-17), and the FC in the left dorsolateral prefrontal cortices and the right precuneus in the FDE group were negatively correlated with the HAMD-17.ConclusionsThe RDE and FDE groups showed multiple abnormal brain networks. However, the alterations of abnormal FC were more extensive and intensive in the FDE group.

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Section: Discussionmentioning

confidence: 99%