CAJ | 학술논문

目的：利用磁共振波谱（1H-MRS ）分析研究青少年抑郁症患者前额叶的代谢改变。方法：收集年龄、性别及教育程度匹配的24例青少年抑郁症患者（抑郁症组）和23例健康青少年（对照组），应用多体素1H-MRS 技术测量前额叶白质和灰质内 N-乙酰天门冬氨酸盐（ NAA ）、胆碱复合物（ Cho ）、肌酸（Cr）等代谢物的水平。结果：抑郁症组左背外侧前额叶白质 NAA/Cr、Cho/Cr 较对照组显著减低[NAA/Cr：1．67±0．32， t ＝3．126， P ＝0．004； Cho/Cr：1．28±0．30， t ＝2．362， P ＝0．024]，抑郁症组右背外侧前额叶白质 NAA/Cr 较对照组显著减低[NAA/Cr：1．65±0．26， t ＝2．969， P ＝0．006]，两组间双侧前扣带回灰质的代谢物无明显差异。结论：前额叶白质的代谢异常参与青少年抑郁症的发生过程，这些改变发生在疾病发生过程的早期。
목적：이용자공진파보（1H-MRS ）분석연구청소년억욱증환자전액협적대사개변。방법：수집년령、성별급교육정도필배적24례청소년억욱증환자（억욱증조）화23례건강청소년（대조조），응용다체소1H-MRS 기술측량전액협백질화회질내 N-을선천문동안산염（ NAA ）、담감복합물（ Cho ）、기산（Cr）등대사물적수평。결과：억욱증조좌배외측전액협백질 NAA/Cr、Cho/Cr 교대조조현저감저[NAA/Cr：1．67±0．32， t ＝3．126， P ＝0．004； Cho/Cr：1．28±0．30， t ＝2．362， P ＝0．024]，억욱증조우배외측전액협백질 NAA/Cr 교대조조현저감저[NAA/Cr：1．65±0．26， t ＝2．969， P ＝0．006]，량조간쌍측전구대회회질적대사물무명현차이。결론：전액협백질적대사이상삼여청소년억욱증적발생과정，저사개변발생재질병발생과정적조기。
Objective To explore the brain biochemical changes in the frontal lobe of adolescents with depression using proton magnetic resonance spectroscopy (1H-MRS). Methods Twenty-four patients and twenty-three healthy subjects matched for age, sex and education level were enrolled in the study. All the subjects underwent multivoxel 1H MRS to measure the bilateral metabolic levels of N-acetylaspartate (NAA), choline (Cho), creatine (Cr) in the prefrontal lobes. Results The NAA/Cr and Cho/Cr ratios in the left dorsolateral prefrontal white matter of the depressive adolescents were significantly lower than those of the healthy subjects [NAA/Cr: 1.67 ± 0.32, t = 3.126, P = 0.004; Cho/Cr: 1.28 ± 0.30, t = 2.362, P = 0.024], and the ratios of NAA/Cr in the right dorsolateral prefrontal white matter of the depressive adolescents was also significantly lower than that of the healthy subjects [NAA/Cr:1.65 ± 0.26, t=2.969, P=0.006]. There was no significant difference in the metabolic ratios in the bilateral anterior cingulate gray matter between the depressive adolescents and the healthy controls. Conclusions Biochemical abnormalities in prefrontal white matter are involved in the pathophysiology of depression. Importantly , these abnormalities are already present early in the course of the disorder.