Effect of rs1063843 in the CAMKK2 gene on the dorsolateral prefrontal cortex

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• 作者：Ping Yu ; Xiongying Chen ; Wan Zhao ; Zhifang Zhang ; Qiumei Zhang ; Bingqian Han ; Jinguo Zhai ; Min Chen ; Boqi Du ; Xiaoxiang Deng ; Feng Ji ; Chuanyue Wang ; Yu-Tao Xiang ; Dawei Li ; Hongjie Wu ; Jun Li ; Qi Dong and Chuansheng Chen
• 刊名：Human Brain Mapping
• 出版年：2016
• 出版时间：July 2016
• 年：2016
• 卷：37
• 期：7
• 页码：2398-2406
• 全文大小：242K
• ISSN：1097-0193

文摘

Recently, a single nucleotide polymorphism (SNP) in the CAMKK2 gene (rs1063843) was found to be associated with lower expression of the gene in the dorsolateral prefrontal cortex (DLPFC) and with schizophrenia (SCZ) and deficits in working memory and executive function. However, the brain mechanism underlying this association is poorly understood. A functional magnetic resonance imaging (fMRI) study (N = 84 healthy volunteers) involving multiple cognitive tasks, including a Stroop task (to measure attentional executive control), an N-back task (to measure working memory), and a delay discounting task (to measure decision making) to identify the brain regions affected by rs1063843 was performed. Across all three tasks, it was found that carriers of the risk allele consistently exhibited increased activation of the left DLPFC. In addition, the risk allele carriers also exhibited increased activation of the right DLPFC and the left cerebellum during the Stroop task and of the left caudate nucleus during the N-back task. These findings helped to elucidate the role of CAMKK2 in cognitive functions and in the etiology of SCZ. Hum Brain Mapp 37:2398–2406, 2016.