2型糖尿病合并轻度认知损害的正电子发射计算机断层扫描研究  被引量:1

Positron emission tomography imaging study of mild cognitive impairment in patients with 2 type diabetes mellitus

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作  者:林铮[1] 陈怀红[2] 徐磊[2] 占宏伟[3] 

机构地区:[1]浙江大学医学院附属第二医院精神科,杭州310009 [2]浙江大学医学院附属第二医院老年科,杭州310009 [3]浙江大学医学院附属第二医院核医学科,杭州310009

出  处:《中华精神科杂志》2012年第2期89-92,共4页Chinese Journal of Psychiatry

基  金:浙江省科技厅面上科研社会发展项目(2007C33045)

摘  要:目的探讨2型糖尿病(DM)合并轻度认知损害(MCI)患者脑葡萄糖代谢特点。方法应用18-氟代脱氧葡萄糖(^18F-FDG)正电子发射计算机断层扫描(PET),对7例单纯DM患者(DM组)、6例DM合并MCI患者(DM+MCI组)及10名正常对照者(对照组)脑葡萄糖代谢进行检测;采用简易精神状态检查量表(MMSE)、画钟试验(CDT)及临床痴呆评定量表(CDR)测定患者认知功能。结果(1)认知功能:DM+MCI组的MMSE得分[(24.67±0.82)分]显著低于对照组[(29.20±0.79)分]及DM组[(29.14±1.21)分](P均〈0.01),CDR得分[(0.58±0.20)分]显著高于对照组[(0.10±0.21)分]及DM组[(0.14±0.24)分](P均〈0.01),CDT得分与对照组及DM组间差异无统计学意义。(2)^18F-FDGPET检查:与对照组比较,DM组左顶叶平均标准化摄取值(SUV)半定量比值降低(1.03±0.07比1.16±0.09,P〈0.05),DM+MCI组左额叶(1.02±0.16比1.15±0.08)、右额叶(0.90±0.07比1.10±0.06)、扣带回(0.92±O.06比1.17±0.08)、左顶叶(0.94±0.12比1.16±0.09)、右顶叶(0.93±0.10比1.11.4-0.06)、左颞顶后叶(0.96±0.11比1.17±0.01)、右颞顶后叶(0.90±0.09比1.15±0.06)的SUV半定量比值均降低(P〈0.01);与DM组比较,DM+MCI组左额叶(1.024-0.16比1.15±0.11)、右额叶(0.90±0.07比1.06±0.18)、扣带回(0.92±0.06比1.16±0.08)、右顶叶(O.93±0.10比1.10±0.12)、左颞顶后叶(0.96±0.11比1.14±0.14)、右颞顶后叶(0.90±0.09比1.18±0.17)的SUV半定量比值降低(P〈0.01或P〈0.05)。结论2型糖尿病合并MCI患者的双侧额叶、扣带回、顶叶、颞顶后叶等多个脑区葡萄糖代谢均降低。Objective To investigate the changes of regional cerebral metabolism rate of glucose in 2 type diabetes mellitus patients (DM) with mild cognitive impairment (MCI) by positron emission tomography (PET). Methods Seven diabetes mellitus patients (DM), 6 DM patients with MCI (DM ± MCI) and 10 healthy controls (HC) were underwent ^18F-fluoro deoxyglucose PET (^18F-FDG PET) scanning and gained the standardized uptake value (SUV). All subjects were measured with the Mini Mental State Examination (MMSE), Clock Drawing Test (CDT), Clinical Dementia Rating (CDR). Results ( 1 ) Cognitive function : MMSE scores of DM ± MCI group ( 24. 67 ± 0. 82 ) were decreased significantly compared to HC group (29. 20 ±0. 79) and DM group (29. 14 ± 1.21 ), CDR scores of DM ± MCI group (0. 58 ±0. 20) increased significantly compared to HC group (0. 10 ± 0. 21 ) and DM group(0. 14 ± 0. 24 ), P 〈0.01 there were no differences on CDT scores between three groups. (2) lSF-FDG PET: In comparison to HC group, the SUV ratio of left parietal lobe [ ( 1.03 ± 0. 07 ) vs. ( 1.16 ± 0. 09 ) ] was decreased in DM group( P 〈 0. 05 ) and declined obviously in left frontal lobe [ ( 1.02± 0. 16 ) vs. ( 1.15 ± 0. 08 ) ], right frontal lobe[ (0. 90 ± 0. 07) vs. (1.10 ±0.06)], cingulated gyrus [(0.92 ± 0. 06) vs. (1.17 ±0.08) ], left parietal lobe [ (0. 94 ± 0. 12) vs. ( 1.16 ± 0. 09) ], right parietal lobe [ (0. 93 ± 0. 10) vs. ( 1.11 ± 0.06 ) 1, left posterior temporal-parietal lobe [ (0. 96 ± 0. 11 ) vs. ( 1.17 ± 0.01 ) ], right posterior temporal- parietal lobe [ ( 0. 90 ± 0.09 ) vs. ( 1.15 ± 0.06 ) ] in DM ± MCI group ( P 〈 0. 01 ). The SUV ratio of left frontal lobe [ ( 1.02 ± 0. 16 ) vs. ( 1.15 ± 0. 11 ) ], right frontal lobe [ ( 0. 90 ± 0. 07 ) vs. ( 1.06 ± 0. 18 ) ],cingulated gyms [(0.92 ± 0.06) vs. (1.16 ±0.08)1, right parietal lobe [(0.

关 键 词:认知障碍 糖尿病 正电子发射断层显像术 痴呆 

分 类 号:R749.1[医药卫生—神经病学与精神病学]

 

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