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| 001 | 1018437 | ||
| 005 | 20240429104855.0 | ||
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| 100 | 1 | _ | |a Krick, Sebastian |b 0 |
| 245 | _ | _ | |a Neuroanatomy of post-stroke depression: the association between symptom clusters and lesion location |
| 260 | _ | _ | |a [Großbritannien] |c 2023 |b Guarantors of Brain |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 520 | _ | _ | |a Post-stroke depression affects about 30% of stroke patients and often hampers functional recovery. The diagnosis of depression encompasses heterogeneous symptoms at emotional, motivational, cognitive, behavioural or somatic levels. Evidence indicates that depression is caused by disruption of bio-aminergic fibre tracts between prefrontal and limbic or striatal brain regions comprising different functional networks. Voxel-based lesion-symptom mapping studies reported discrepant findings regarding the association between infarct locations and depression. Inconsistencies may be due to the usage of sum scores, thereby mixing different symptoms of depression. In this cross-sectional study, we used multivariate support vector regression for lesion-symptom mapping to identify regions significantly involved in distinct depressive symptom domains and global depression. MRI lesion data were included from 200 patients with acute first-ever ischaemic stroke (mean 0.9 ± 1.5 days of post-stroke). The Montgomery-Åsberg Depression Rating interview assessed depression severity in five symptom domains encompassing motivational, emotional and cognitive symptoms deficits, anxiety and somatic symptoms and was examined 8.4 days of post-stroke (±4.3). We found that global depression severity, irrespective of individual symptom domains, was primarily linked to right hemispheric lesions in the dorsolateral prefrontal cortex and inferior frontal gyrus. In contrast, when considering distinct symptom domains individually, the analyses yielded much more sensitive results in regions where the correlations with the global depression score yielded no effects. Accordingly, motivational deficits were associated with lesions in orbitofrontal cortex, dorsolateral prefrontal cortex, pre- and post-central gyri and basal ganglia, including putamen and pallidum. Lesions affecting the dorsal thalamus, anterior insula and somatosensory cortex were significantly associated with emotional symptoms such as sadness. Damage to the dorsolateral prefrontal cortex was associated with concentration deficits, cognitive symptoms of guilt and self-reproach. Furthermore, somatic symptoms, including loss of appetite and sleep disturbances, were linked to the insula, parietal operculum and amygdala lesions. Likewise, anxiety was associated with lesions impacting the central operculum, insula and inferior frontal gyrus. Interestingly, symptoms of anxiety were exclusively left hemispheric, whereas the lesion-symptom associations of the other domains were lateralized to the right hemisphere. In conclusion, this large-scale study shows that in acute stroke patients, differential post-stroke depression symptom domains are associated with specific structural correlates. Our findings extend existing concepts on the neural underpinnings of depressive symptoms, indicating that differential lesion patterns lead to distinct depressive symptoms in the first weeks of post-stroke. These findings may facilitate the development of personalized treatments to improve post-stroke rehabilitation.Keywords: MADRS; SVR-LSM; large-scale; multivariate; neural substrates. |
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| 700 | 1 | _ | |a Koob, Janusz L |b 1 |
| 700 | 1 | _ | |a Latarnik, Sylvia |b 2 |
| 700 | 1 | _ | |a Volz, Lukas J |0 0000-0002-0161-654X |b 3 |
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| 700 | 1 | _ | |a Grefkes, Christian |0 P:(DE-Juel1)161406 |b 5 |e Corresponding author |
| 700 | 1 | _ | |a Rehme, Anne K |b 6 |
| 773 | _ | _ | |a 10.1093/braincomms/fcad275 |g Vol. 5, no. 5, p. fcad275 |0 PERI:(DE-600)3020013-1 |n 5 |p fcad275 |t Brain communications |v 5 |y 2023 |x 2632-1297 |
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