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Intrinsic Connectivity of the Globus Pallidus: An Uncharted Marker of Functional Prognosis in People With First-Episode Schizophrenia.
Schizophrenia Bulletin ( IF 5.3 ) Pub Date : 2020-01-04 , DOI: 10.1093/schbul/sbz034
Goda Tarcijonas 1 , William Foran 1 , Gretchen L Haas 1 , Beatriz Luna 1, 2, 3 , Deepak K Sarpal 1
Affiliation  

There is growing evidence suggesting that abnormalities in cortical-basal ganglia circuitry may play a significant role in determining outcomes in schizophrenia. The globus pallidus (GP), a critical structure within this circuitry, unique in its role as a mediator of competing inputs through the striatum, has not been well characterized in schizophrenia. The following study examined functional interactions of the GP in individuals with first-episode schizophrenia (FES). To probe the large-scale intrinsic connectivity of the GP, resting-state fMRI scans were obtained from patients with FES and sex and age-matched healthy controls. Participants with FES were also evaluated after 6 months via the Strauss-Carpenter Outcomes Scale to assess overall functional trajectory. The GP was parcellated to generate seeds within its substructures, and connectivity maps were generated. Our FES cohort showed significantly lower functional connectivity between the left GP interna and a network of regions including the dorsolateral prefrontal cortex, caudate, and cerebellum at baseline. In addition, FES participants with lower overall scores of functioning at 6 months showed significantly decreased connectivity between the GP interna and the dorsal anterior cingulate and bilateral insula, all regions important for motivational salience. These results provide novel evidence for unique abnormalities in functional interactions of the GP with key prefrontal cortical regions in FES. Our findings also suggest that reduced prefrontal-pallidal connectivity may serve as a predictor of early functional outcome.

中文翻译:

Globus Pallidus的内在连通性:初发精神分裂症患者功能预后的未知标志。

越来越多的证据表明,皮质基底神经节回路异常可能在确定精神分裂症的预后中起重要作用。苍白球(GP)是该电路中的关键结构,其独特的作用是通过纹状体竞争性输入的介体,在精神分裂症中尚未得到很好的表征。以下研究检查了患有首发精神分裂症(FES)的个体中GP的功能相互作用。为了探究GP的大规模内在连通性,从FES患者以及与性别和年龄相匹配的健康对照组中获得了静息状态fMRI扫描。6个月后,还通过Strauss-Carpenter结果量表评估了FES的参与者,以评估总体功能轨迹。GP被切碎以在其子结构内生成种子,并生成连接图。我们的FES队列显示左GP内部与基线区域的区域网络(包括背外侧前额叶皮层,尾状和小脑)之间的功能连接性明显降低。此外,在6个月时总体功能评分较低的FES参与者显示,GP内部与背扣带和双侧岛突之间的连通性显着降低,所有这些区域对动机显着性都很重要。这些结果为GP与FES中关键的前额叶皮层区功能相互作用中的独特异常提供了新的证据。我们的研究结果还表明,额叶前苍白细胞连接性降低可能是早期功能预后的预测指标。我们的FES队列显示左GP内部与基线区域的区域网络(包括背外侧前额叶皮层,尾状和小脑)之间的功能连接性明显降低。此外,在6个月时总体功能评分较低的FES参与者显示,GP内部与背扣带和双侧岛突之间的连通性显着降低,所有这些区域对动机显着性都很重要。这些结果为GP与FES中关键的前额叶皮层区功能相互作用中的独特异常提供了新的证据。我们的研究结果还表明,额叶前苍白细胞连接性降低可能是早期功能预后的预测指标。我们的FES队列显示左GP内部与基线区域的区域网络(包括背外侧前额叶皮层,尾状和小脑)之间的功能连接性明显降低。此外,在6个月时总体功能评分较低的FES参与者显示,GP内部与背扣带和双侧岛突之间的连通性显着降低,所有这些区域对动机显着性都很重要。这些结果为GP与FES中关键的前额叶皮层区功能相互作用中的独特异常提供了新的证据。我们的研究结果还表明,额叶前苍白细胞连接性降低可能是早期功能预后的预测指标。此外,在6个月时总体功能评分较低的FES参与者显示,GP内部与背扣带和双侧岛突之间的连通性显着降低,所有这些区域对动机显着性都很重要。这些结果为GP与FES中关键的前额叶皮层区功能相互作用中的独特异常提供了新的证据。我们的研究结果还表明,额叶前苍白细胞连接性降低可能是早期功能预后的预测指标。此外,在6个月时总体功能评分较低的FES参与者显示,GP内部与背扣带和双侧岛突之间的连通性显着降低,所有这些区域对动机显着性都很重要。这些结果为GP与FES中关键的前额叶皮层区功能相互作用中的独特异常提供了新的证据。我们的研究结果还表明,额叶前苍白细胞连接性降低可能是早期功能预后的预测指标。这些结果为GP与FES中关键的前额叶皮层区功能相互作用中的独特异常提供了新的证据。我们的研究结果还表明,额叶前苍白细胞连接性降低可能是早期功能预后的预测指标。这些结果为GP与FES中关键的前额叶皮层区功能相互作用中的独特异常提供了新的证据。我们的研究结果还表明,额叶前苍白细胞连接性降低可能是早期功能预后的预测指标。
更新日期:2020-01-04
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