Brain metabolism differs in Alzheimer's disease and Parkinson's disease dementia.

Brain metabolism differs in Alzheimer's disease and Parkinson's disease dementia.
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DOI:
10.1016/j.jalz.2008.04.008
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发表时间:
2008-11
影响因子:
14
通讯作者:
Marson, Daniel C.
Marson, Daniel C.
中科院分区:
医学1区
文献类型:
--
作者:
Griffith, H. Randall;den Hollander, Jan A.;Okonkwo, Ozioma C.;O'Brien, Timothy;Watts, Ray L.;Marson, Daniel C.

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很少有关于神经退行性疾病之间的代谢性大脑变化的比较研究。我们用质子磁共振波谱(MRS)对阿尔茨海默病(AD)和帕金森氏病(PDD)患者的脑代谢异常进行了比较。12例特发性PDD患者、22例疑似轻度AD患者和61例健康老年人行后扣带回MRS检查。AD患者MRS显示N-乙酰天冬氨酸(NAA)/肌酸(Cr)降低(p<0.05),胆碱(Cho)/肌酸(p<0.05)和肌醇(MI)/肌酸(p<0.01)升高。与对照组相比,PDD患者的NAA/Cr(p<0.05)和谷氨酸(Glu)/Cr(p<0.01)降低。与AD组相比,PDD组Glu/Cr值降低(p<0.01)。AD患者和PDD患者表现出不同的脑代谢MRS图谱。研究结果表明,对不同痴呆症患者的脑磁共振波谱进行比较,为未来的研究提供了有用的方向。
Few comparative studies exist of metabolic brain changes among neurodegenerative illnesses. We compared brain metabolic abnormalities in Alzheimer’s disease (AD) and in Parkinson’s disease with dementia (PDD) as measured by proton magnetic resonance spectroscopy (MRS). Twelve patients with idiopathic PDD, 22 patients with probable mild AD, and 61 healthy older controls underwent posterior cingulate MRS. Patients with AD showed reduced N-acetylaspartate (NAA)/creatine (Cr) (p <0.05) and increased choline (Cho)/Cr (p <0.05) and myo-Inositol (mI)/Cr (p <0.01) compared to controls. Patients with PDD showed reduced NAA/Cr (p <0.05) and glutamate (Glu)/Cr (p <0.01) compared to controls. There was reduced Glu/Cr in PDD compared to AD (p <0.01). Patients with AD and patients with PDD showed distinct brain metabolic MRS profiles. Findings suggest that comparison of brain MRS profiles across dementias provides useful direction for future study.
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