CSMD1基因多态性与精神分裂症患者词语流畅性及脑灰质体积的关联研究

被引:5
作者
李静
郁昊
廖金敏
姜思思
刘琦
闫俊
岳伟华
阎浩
张岱
机构
[1] 北京大学第六医院北京大学精神卫生研究所卫生部精神卫生学重点实验室(北京大学)国家精神心理疾病临床医学研究中心(北京大学第六医院)
关键词
精神分裂症; 多态性,单核苷酸; 认知; CSMD1; 灰质体积;
D O I
暂无
中图分类号
R749.3 [精神分裂症];
学科分类号
100204 [神经病学];
摘要
目的探讨CSMD1(CUB and Sushi multiple domains1)基因多态性与精神分裂症患者词语流畅性及脑灰质体积的关系。方法对87例精神分裂症患者(患者组)及98名对照者(对照组)进行脑MRI检查、认知功能评估及全基因组单核苷酸多态性分型芯片检测。采用线性回归模型检验CSMD1基因上各单核苷酸多态性位点基因型与数字符号转换测验、词语流畅性测验评分的关联。采用全因子模型分析诊断和CSMD1基因型的主效应及交互效应脑区, 并对交互作用显著的脑区灰质体积与认知评分进行偏相关分析。结果患者组认知功能评估中数字符号转换测验(t=-7.51, P<0.05)及词语流畅性测验评分较对照组显著下降(t=-3.23, P<0.05)。患者组CSMD1基因rs17405197位点多态性与词语流畅性相关。全因子模型分析显示, 左侧直回及双侧颞上回灰质体积存在诊断主效应;post hoc分析显示患者组在上述脑区灰质体积较对照组减小。右侧额下回三角部灰质体积存在CSMD1基因rs17405197基因型主效应[MNI坐标(x、y、z)为54、27、9, F=35.75, FWE校正, P<0.05, 连续体素k>10];post hoc分析显示AA基因型携带者在该脑区较AC+CC基因型携带者灰质体积减小。右侧额下回岛盖部灰质体积存在基因型×诊断的交互效应[MNI坐标(x、y、z)为51、20、15, F=20.55;P<0.001, k>100]。偏相关分析显示, 仅患者组右侧额下回岛盖部灰质体积与词语流畅性评分负相关(r=-0.28, P=0.01)。结论 CSMD1基因rs17405197多态性可能通过影响精神分裂症患者右侧额下回岛盖部灰质体积进而影响其词语流畅性功能。
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