Effect of Kudzuvine Root in Improving Neuroelectrophysiological Function of Brain in Patients with Diabetes Mellitus Type 2

Objective: To investigate the effects of kudzuvine root on 3 kinds of brain evoked potential in patients with diabetes mellitus type 2 (DM2). Methods: Forty-six cases of DM2 were randomized into two groups: the control group and the treatment group, they were respectively treated orally with 50 ml of normal saline or 50ml of kudzuvine root decoction containing kudzuvine root 0.4 g/ml. The short latency somatosensory evoked potential (SSEP), brainstem auditory evoked potential (BAEP) and visual evoked potential (VEP) in patients were measured before and 40 min after treatment. Results: (1) SSEP in the control group was not changed significantly before and after taking normal saline (P＞0.05), while in the treatment group there appeared a significant delay in peak latency (PL) of N13 wave (N13PL) and a significant shortening in N20PL and interpeak latency (IPL) between N13 wave and N20 wave (N13-N20 IPL) after kudzuvine treatment ( P＜0.05 or P＜0.01). But the difference of various parameters of SSEP between the two groups was insignificant difference (P＞0.05). (2) BAEP in the control group was not changed significantly after treatment (P＞0.05), while in the treatment group Ⅰ -Ⅲ IPL and Ⅰ -Ⅴ IPL were significantly shortened, showing significant difference as compared with those in the control group (both P＜0.01). (3) VEP in the control group was not changed significantly after treatment ( P＞0.05), while in the treatment group the amplitude of P100 wave increased obviously (P＜0.01). But the difference of various VEP parameters between the two groups was not significant statistically after treatment( P＞0.05). Conclusion: Kudzuvine could shorten the latent period of brain evoked potential and the central transmission time, increase the amplitude of cortex wave and turn it back to normal, thus to effectively protect and accommodate the brain function in patients with DM2.     

Evaluation of the Clinical Efficacy of Qingqiao Capsule (清窍胶囊) in Treating Patients with Secretory Otitis Media

Objective: To ooserve the clinical efficacy of Qingqiao Capsule (清窍胶囊, QQC) in treating patients with secretory otitis media (SOM). Methods: A total of 90 patients were randomly assigned into the treated group (n=45 ) and the control group (n =45). Patients in the treated group were administrated with QQC, 5 capsules each time, 3 times a day for totally 10-14 days, and those in the control group were given per os cefaclor capsules 0.5g each time for adult, 3 times a day, or 20mg/(kg· d) for children, for 10-14 days. The therapeutic efficacy of treatment on the patients was observed and compared after treatment and followed up for 3-6 months. Results: (1) The clinical efficacy in the treated group was superior to that in the control group with significant statistical difference ( P＜0.01 ); (2) Comparison of the efficacies in patients of three different TCM syndrome types (the external pathogenic wind invasion caused auditory orifice stuffiness type, the Gan-Dan damp-heat steaming up auditory orifice type and the Pi-deficiency dysfunction induced dirty dampness blocking ear type) showed no statistically significant difference(P＞0.05); (3) The vanishing rate and time needed of the main symptoms and signs in the treated group were superior to those in the control group on ear muffle, tinnitus, hearing impairment, hydrotypanum, pure tone threshold and abnormal tongue figure, and the difference was statistically significant ( P＜0.05 or P＜0.01), only those of earache,otopiesis and abnornal pulse figure were insignificantly different between the two groups ( P＞0.05). Conclusion: QQC is an effective Chinese composite medicine on patients with SOM, and shows no obvious adverse reaction.     

EVOKED POTENTIALS OF OBSESSIVE-COMPULSIVE DISORDER： STATE OR TRAIT MARKER

Objective To investigate the status of evoked potentials in obsessive-compulsive disorder(OCD). Methods Evoked potentials P300, auditory brainstem response (ABR) and visual evoked potential ( VEP) were recorded from 35 OCD patients and 28 normal controls (NC) with a Nicolet Spirit Instrument. 23 of the OCD patients were followed up after 5 months with the same markers. Results Compared with NC, OCD patients showed decreased P3 of P300 amplitude (OCD group 3. 5 ±1. 6μv vs. NC group 5.9 ±2. 1μv, P <0. 01), delayed V latency (6.4±0. 4ms vs. 5. 5 ±0. 3ms, P <0. 01) and increased V amplitude(0. 35±0. 1μv vs. 0. 16 ±0.09μv, P <0. 05) of ABR and delayed P2 of VEP latency (199±39ms vs. 183±28ms, P <0. 05). The follow-up measures of evoked potentials suggested that decreased P3 of P300 amplitude and delayed P2 of VEP latency might be state markers of OCD, while decreased V amplitude and delayed V of ABR latency might be trait markers of OCD. Conclusion The changes of P300 and VEP are related to clini     

Effects of electroacupuncture combined psycho-intervention on cognitive function and event-related potentials P300 and mismatch negativity in patients with internet addiction

Objective:To observe the effects of comprehensive therapy(CT) with electroacupuncture(EA) in combination with psycho-intervention(PI) on the cognitive function and event-related potentials(ERP),P300 and mismatch negativity(MMN),in patients with internet addiction(IA) for a preliminary exploration of the possible mechanism of the therapy.Methods:One hundred and twenty patients with IA were randomly divided into three groups,and a total of 112 subjects reached the final analysis of the trial,the EA group(39 patients),the PI group (36 patients) and the CT group(37 patients).EA was applied at acupoints Baihui(GV20),Sishencong(EX-HN1), Hegu(LI4),Neiguan(PC6),Taichong(LR3) and Sanyinjiao(SP6),once every other day;PI with the cognitionbehavior mode was implemented every 4 days;both EA and PI were used in the CT group.The treatment course for all patients was 40 days.Changes before and after treatment in terms of scoring by the IA self-rating scale,short-term memory capacity,short-term memory span,and the latency and amplitude of P300 and MMN in patients were observed.Results:After treatment,in all groups,the IA score was lowered significantly(P<0.05) and scores of short-term memory capacity and short-term memory span increased significantly(P<0.05), while the decreased IA score in the CT group was more significant than that in the other two groups(P<0.05). ERP measurements showed that P300 latency was depressed and its amplitude raised in the EA group;MMN amplitude increased in the CT group(all P<0.05).Conclusion:The EA in combination with PI could improve the cognitive function of IA patients,and its mechanism might be related to the speedup of cerebral discrimination on external stimulus and the enhancement of effective resource mobilization during information processing of the brain.     

Long-term P300 in hemispherectomized patients

Background In the years around 1990, in Beijing 13antan Hospital Affiliated to Capital Medical University many children with infantile hemiplegia and intractable epilepsy were treated with further modified anatomical hemispherectomy. We report the follow up of the first six cases. To make good use of these precious clinical data and make clear their neuropsychological state, we performed neuropsychological and neurophysiological measurements in these patients, who were at a median of 17.8 years after hemispherectomy. Methods Oddball task was given to the patients and to a normal control group to collect the peak latency （PL） and peak amplitude （PA） of event-related potentials （ERPs）-P300. The P300 data of the two groups were analyzed and the P300 patterns of the six patients are presented. The baseline characteristics and long-term follow-up of the six hemispherectomized patients, especially the long-term seizure control and cognitive function after surgery, are described. Results Five patients had no seizures and one was almost seizure-free during the years after surgery. Clear P300 was obtained from every electrode in the patients. Differences of P300 between patients and normal control group had no statistical significance. And the maximum PA was at the site of electrode Pz or Cz which was consistent with that of the control group and with previous findings. Conclusions Further modified anatomical hemispherectomy has preferable long-term antiepileptic effects. The P300 results of the patients mean that the basic cognitive function of the patients has no difference from the control group. This reflects the plasticity of the hemisphere to some extent and increases the affirmation of the long-term curative effects of further modified anatomical hemispherectomy from both neuropsychological and neurophysiological aspects.     

Clinical study on treatment of liver fibrosis of chronic hepatitis B patients with Ginkgo leaf

Objective: To study the anti-liver fibrosis effect of Ginkgo leaf in patients with chronic hepatitis B.Methods: Eighty-six patients with chronic hepatitis B were randomly divided into two groups with similar general condition. The 42 patients in the treated group were treated with Ginkgo leaf tablet (GLT), and the 44 patients in the control group were treated with Yiganling tablet (益肝灵片). The treatment was conducted for 3 successive months in both groups. Changes in the histo-pathology of liver, serum levels of platelet activating factor (PAF), hyaluronic acid (HA), collagen type Ⅳ (C-Ⅳ), laminin (LN) and pro-collagen peptide type Ⅲ (PCⅢ)were observed before and after treatment. Results: The markedly effective rate and the total effective rate in the treated group were 45.1% and 76.2% respectively, while in the control group the corresponding rates were 18.2% and 43.2%. Comparison between the two groups showed significant difference (P<0.01). Serum levels of PAF, HA, C-Ⅳ, LN and PCⅢ were lowered significantly in the treated group after treatment. Compared with the corresponding parameters in the control group after treatment, the differences were all significant (P<0.01 or P<0.05). The pathological examination of liver showed improvement in both groups, the inflammation grade lowered in 10 patients (55.6%) of the treated group and in 5 patients (35.7%) of the control group, insignificant difference was shown between them. But in comparing the fibrosis staging lowering patients between the two groups, 12 patients (66.7%) vs 3 patients (21.4%), the difference was significant (P<0.05). Moreover, there were 4 patients in the control group with their fibrosis aggravated, while in the treated group, none was aggravated (P<0.05).Conclusion: Ginkgo leaf tablet has some liver protective and anti-liver fibrosis benefits.     

Effect of Gan-Pi regulatory needling in treating chloasma

<正>Objective:To study the effect of Gan(肝)-Pi(脾) regulatory needling(GPRN) in treating chloasma and its influences on female sex hormones,superoxide dismutase(SOD),lipid peroxide(LPO) and melanocyte-stimulating hormone(MSH).Methods:Ninety chloasma patients were equally randomized to three groups,the treatment group treated with GPRN,the control group treated with conventional Westem medicine and the blank group untreated. Changes in the scores of skin lesion(area and color) and symptom,as well as blood levels of female sex hormones, MSH,SOD and LPO were observed and compared after 3 months of treatment.Results:In the treatment group,the scores of skin lesion area and color were reduced from 2.76±0.96 and 2.48±0.78 before treatment to 1.42±0.42 and 1.03±0.41 after treatment,respectively,while in the control group they were from 2.78±1.06 and 2.53±0.88 to 1.58±1.23 and 1.28±0.96,respectively,all showing significant changes(P0.05);the scores were insignificantly changed in the blank group(P0.05).At the same time,the score of symptoms in the treatment group significantly improved after treatment(P0.05),significantly different from that of the other two groups.Comparison of female sex hormones among groups showed no significant differences either before or after treatment.The level of LPO decreased and SOD increased in both the treatment group and the control group significantly(all P0.05),but significant lowering of MSH was only seen in the treatment group(P0.05).Conclusions:GPRN can effectively lessen the size and lighten the color of chloasma,improve the accompanying symptoms in patients and decrease LPO and MSH levels and increase the SOD level,but will not affect the level of the female sex hormones.     

眼动训练对轻度认知功能障碍老人视觉注意事件相关电位的影响

目的 探讨眼动训练对轻度认知功能障碍老人视觉注意事件相关电位(ERP)的影响.方法 将48名轻度认知障碍老人分别进行眼动训练、手指操训练和空白处理3个月,利用事件相关电位技术(e-vent-related potentials,ERPs)对训练后老人进行检测,分析比较靶刺激P3b和新异刺激P3a的波幅和潜伏期.结果 训练后,新异刺激早成分P1波幅组别主效应显著(P＜0.05),眼动训练组[(6.78±1.55)μV]和手指操训练组[(5.43±1.47)μV]较空白对照组[(3.09±0.98)μV]波幅增大,主要表现在额区.靶刺激早成分P1波幅组别主效应显著(P＜0.05),眼动训练组[(6.75±2.01)μV]高于手指操训练组[(4.12±1.33)μV]和空白对照组[(3.45±1.01)μV].P3a波幅组别主效应显著(P＜0.05),眼动训练组P3a波幅[(10.19±3.09)μV]较手指操训练组[(7.57±2.66)μV]和空白对照组[(6.06±2.03)μV]增大(P＜0.05,P＜0.05),主要表现在额区.P3a潜伏期组别主效应显著(P＜0.05),眼动训练组P3a潜伏期[(390.67±55.03)ms]较手指操训练组[(428.55±48.68)ms]和空白对照组[(435.89±59.21)ms]提前,主要表现在额区和中央顶区.结论 眼动训练可以提高MCI患者的非选择性注意力,手指操训练对视觉注意力的影响不显著.

Abstract：

Objective To study the visual attention of mild cognitive impairment patients (MCI)by eyes movement training. Meathods 48 mild cognitive impairment patients were divided into eye movement training group,finger training group and untreated control group by single-blind randomized block method. Then they were trained respectively three months. Event-related potentials (ERPs) were used to measure the face recognition of them before and after training. The amplitude and latency of P3b elicited by target stimuli and P3a elicited by new stimuli of the three said groups were compared and contrasted. Results After training,the amplitude of P1 elicted by novelty stimulus were larger in eye movement training group( (6.78 ± 1.55 ) μV) and in finger training group ( ( 5.43 ± 1.47 ) μV) than untreated control group ( ( 3.09 ± 0.98 ) μV) significantly, especially in the frontal area. The amplitude of P1 elicted by target stimulus were larger in eye movement training group( (6.75 ±2.01 ) μV)than in finger training group( (4.12 ± 1.33 )μV)and untreated control group( (3.45 ± 1.01 )μV)significantly, especially in the frontal area. The amplitude of P3a were larger in eye movement training group( ( 10. 19 ± 3.09)μV ) than in finger training group ( ( 7.57 ± 2.66 ) μV ) and untreated control group ( ( 6.06 ± 2.03 ) μV ) (P ＜ 0.05,P＜0.05) significantly,especially in the frontal area. The latency of P3a were earlier in eye movement training group( (390.67 ±55.03 ) ms) compared to finger training group( (428.55 ± 48.68 ) ms) and untreated control group( (435.89 ± 59.21 )ms)significantly, especially in the frontal region and central parietal area. Conclusion Eyes movement can improve the MCI patients' non-selective attention function, especially in frontal area.The finger execrises have no significant effect on visual attention.     

Tiaobu Xinshen Recipe (调补心肾方) Improved Mild Cognitive Impairment of Alzheimer's Disease Patients with Xin (Heart) and Shen (Kidney) Deficiency

Objective: To observe the intervention effects of Tiaobu Xinshen Recipe(调补心肾方, TXR) on patients with mild cognitive impairment caused by Alzheimer's disease(MCI-AD). Methods: Totally 88 MCI-AD patients with syndrome of Xin(Heart) and Shen(Kidney) deficiency were assigned to the experimental group(47 cases, treated with TXR) and the control group(41 cases, treated with donepezil hydrochloride) using a random number table. Final recruited qualified patients were 44 cases in the experimental group and 39 cases in the control group. The therapeutic course was 12 weeks. Neuropsychological scales [mini mental state examination(MMSE) and Montreal cognitive assessment(MoCA)], and Chinese medicine(CM) dementia syndromes scales were performed in all patients, and results were compared between groups or intra-group before and after treatment. Results: MMSE and Mo CA scores of the two groups were increased after treatment compared with those before treatment(P0.05). But there was no statistical difference in MMSE or MOCA scores after treatment between the two groups(P0.05). CM dementia syndrome score was significantly decreased after treatment in the experimental group compared with the control group(P0.01). Visual spatial and executive function scores and delayed recall scores of the two groups were increased compared with those before treatment(P0.01). Conclusion: TXR could effectively improve cognitive impairment of MCI-AD patients with syndrome of Xin and Shen deficiency.     

Efficacy and Safety of Qiaoshao Formula(翘芍方) on Patients with Lifelong Premature Ejaculation of Gan(Liver) Depression and Shen(Kidney) Deficiency Syndrome:A Randomized Controlled Trial

Objective: To observe the efficacy and safety of Qiaoshao Formula(翘芍方, QSF) on patients with lifelong premature ejaculation(LPE) of Gan(Liver) depression and Shen(Kidney) deficiency syndrome. Methods: A total of 60 LPE patients were randomly divided into treatment(QSF) and control(dapoxetine) groups. The treatment group received QSF twice a day and the control group received dapoxetine 1 to 2 h prior to planned sexual intercourse for 4 weeks. The outcomes included intra-vaginal ejaculation latency time(IELT), premature ejaculation diagnostic tool(PEDT), clinical global impression of change(CGIC), scores of Chinese medicine symptoms(CMSS), sex life satisfaction(SLS) and adverse events(AEs). Results: In the treatment group, the median IELT was 3 min vs. 1.5 min before and after treatment(P0.05). PEDT in the treatment group was reduced to 11.76±1.68 from 15.83±2.30 after treatment(P0.05). Besides, patient's SLS was improved from 1.30±0.05 to 6.30±0.04(P0.05), and spouse's SLS was increased from 1.30±0.08 to 6.10±0.06(P0.05); CMSS was decrease from 14.86±3.02 to 9.62±2.87(P0.05). In addition, no significant AE was observed in both groups. Conclusion: QSF may be effective and safe on LPE patients with Gan depression and Shen deficiency syndrome.     

睡眠呼吸暂停综合征及鼾症患者事件相关电位的研究

目的　研究睡眠呼吸暂停及鼾症患者事件相关电位 (P3)的情况 ,探讨可能的机制。方法　入组受试者分为睡眠呼吸暂停患者组 2 1例、鼾症组 2 1例及正常对照组 2 1例 ,均进行睡眠多导仪、听觉诱发事件相关电位 (P3)、临床记忆量表检查及神经系统查体。结果采用GLM程序分析。结果　睡眠呼吸暂停患者组记忆商 (MQ) 90± 12 ,P3潜伏期Fz记录点 :36 3ms± 2 3ms ,Cz记录点 :36 9ms± 2 8ms;鼾症组MQ :10 1± 17,P3潜伏期 :Fz记录点 :337ms± 31ms ,Cz记录点 :340ms± 32ms ;正常对照组MQ :114± 12 ,P3潜伏期 :Fz记录点 :341ms± 2 9ms ,Cz记录点 338ms± 30ms。睡眠呼吸暂停患者组与鼾症组、正常对照组的P3潜伏期和记忆商比较差异有显著意义 (P <0 0 5 )。鼾症患者记忆商较正常对照组降低。结论　睡眠呼吸暂停患者有认知功能损害。鼾症患者记忆功能减退。夜间低氧血症可能起重要作用     

Alzheimer病认知电位P300初步研究

目的研究 Alzheimer 病(AD 组)与正常老人(NC 组)的认知电位 P_(300)及其亚成分。方法应用美国 Nicolet Spir-it 脑诱发电位仪和听觉 oddball 范式,记录了30例 AD 组和34例 NC 组在 Cz 和 Fz 点上 P_(300),进一步分析 P_3亚成分。结果 P_3是一个复合波,P_(3a)、P_(3b)双峰明显,清晰。在 Cz 点,AD 组 P_3双峰波出现率低于 NC 组,差异有显著性(P<0.05)。本检测结果,在 Fz 点 P_(3a)潜伏期、P_(3a)及 P_(3b)波幅和 Cz 点 P_(3a)潜伏期、P_(3a)及 P_(3b)波幅上,AD 组表现为同一趋势,即潜伏期延迟和波幅低于 NC组,有显著性差异(P<0.05或 P>0.01)。结论提示 P_(3a)和 P_(3b)是一个较好的指标,适合老年精神科临床应用。     

盐酸多奈哌齐及康复训练对帕金森病患者认知功能障碍的影响

目的:探索有效改善帕金森病认知功能障碍的治疗方法。方法:将2007年5月至2011年10月在温州市中医院康复中心就诊的帕金森病合并认知功能障碍的患者50例随机分为实验组(n=27)和对照组(n=23),实验组给予认知功能康复训练加盐酸多奈哌齐治疗;对照组给予认知功能康复训练。治疗前后两组各做一次统一的蒙特利尔认知评估量表(MoCA)检测、帕金森病评分量表(UPDRS)、韦氏成人智力量表(WAIS-RC)和韦氏记忆量表(WMS)评定。结果:实验组治疗前后蒙特利尔认知评估量表检测、记忆、总智商、言语智商和操作智商评分比较差异均有统计学意义;对照组除潜伏期N2Pz、N2Fz、P3Pz和N2Cz外,其余差异均有统计学意义。两组治疗前后评分差值结果比较,韦氏智商和UPDRS日常生活活动评分差值差异无统计学意义(P>0.05),蒙特利尔认知评估量表检测、P300、记忆评分差异有统计学意义(P<0.05)。结论:认知功能康复训练或认知功能康复训练配合盐酸多奈哌齐都有助于帕金森病患者认知功能损伤的恢复,两者配合使用效果更佳。     

基于P300的非器质性失眠症ERP特征及溯源分析

目的：探讨非器质性失眠症在事件相关电位下的P300特征和溯源分析。方法：将受试者分为健康对照组和非器质性失眠症组,各10例,采用EGI高密度脑电设备记录受试者任务态脑电及行为学数据,其中任务态脑电选择数字N-back任务。通过Net Station软件分析事件相关电位,提取Fz、Cz、Pz电极点的P300潜伏期、振幅以及行为学数据,并在GeoSource工具栏中进行溯源定位。比较2组溯源特征属性。结果：非器质性失眠症组匹兹堡睡眠质量指数总分及其各个组成部分评分、汉密尔顿焦虑量表评分、汉密尔顿抑郁量表评分均高于健康对照组(P<0.05～P<0.01)。2组在0-back、1-back任务中的正确率、反应时间差异均无统计学意义(P>0.05),2组在2-back任务中的正确率、反应时间差异均有统计学意义(P<0.05)。非器质性失眠症组在0-back任务中Fz点、1-back任务中Fz点的P300振幅均低于健康对照组(P<0.05和P<0.01)。非器质性失眠症组在2-back任务中Fz、Cz、Pz点的P300潜伏期均长于健康对照组(P<0.05)...     

伴和不伴有凶杀行为的精神分裂症患者听觉感觉门控P50的研究

目的 分析伴和不伴有凶杀行为的精神分裂症患者听觉感觉门控P50的变化及其意义.方法 应用256导联高密度脑电仪采用听觉条件(S1)-测试刺激(S2)模式对26例具有凶杀行为的精神分裂症患者(凶杀组)、27例非凶杀行为的精神分裂症患者(非凶杀组)和32名正常对照者(正常组)进行听觉诱发电位P50检测.应用阳性和阴性症状评定量表(PANSS)对患者进行临床精神症状评定.结果 (1)与正常组相比,凶杀组、非凶杀组S1-P50的波幅[Fz脑区分别为(2.4±1.6)μV、(2.5±1.5)μV和(3.4±2.7)μV和潜伏期[Fz脑区分别为(68±19)ms、(67±20)ms和(61±19)ms]差异均无统计学意义(均P＞0.05),s2.P50波幅高[Fz脑区分别为(0.8±0.7)μV、(2.5 ±1.6)μV和(3.3±2.2)μV]和潜伏期延迟[Fz脑区分别为(50 4±26)ms、(75±19)ms和(70±24)ms](均P＜0.01);凶杀组和非凶杀组的s2-P50波幅和潜伏期差异均无统计学意义(均P＞0.05).(2)与正常组相比,凶杀组、非凶杀组的S2/S1比值高[Fz脑区分别为35±26、153±137和125±85],S1-S2差值小[Fz脑区分别为1.69 ±1.55、0.08 ±2.41和0.17±2.30]和100(1-S2/S1)值小[Fz脑区分别为65 ±26、-53 ±137和-25 ±85](P＜0.01).而凶杀组和非凶杀组的S2/S1比值、S1-S2差值和100(1-S2/S1)差异均尤统计学意义(均P＞0.05).(3)凶杀组和非凶杀组的PANSS总分、阳性量表总分、阴性量表总分及一般精神病理量表总分的差异均无统计学意义[凶杀组分别为:(110 ±27)分、(26±10)分、(29±7)分、(55±12)分;非凶杀组分别为:(105 ±27)分、(24 ±8)分、(28±10)分、(53 ±12)分](均P＞0.05),且与反映P50的S/S1、S1-S2差值和100(1-S2/S1)指标的相关性差异均无统计学意义(均P＞0.05).结论 伴和不伴有凶杀行为的精神分裂症患者感觉门控存在异常,能通过听觉P50检测,但P50指标无差异.     

精神分裂症患者事件相关电位MMN对照研究

目的探讨精神分裂症患者事件相关电位失匹配负波(mismatch negativity,MMN)的特征及发病次数对MMN的影响。方法对35例精神分裂症患者(病例组)和30名志愿者(对照组)行事件相关电位MMN的检测,并比较首发病患与复发病患MMN潜伏期、波幅的差异。结果①病例组和对照组Fz,Cz点均可见较明显MMN波形,精神分裂症组波形欠规则。②相对于对照组而言,病例组在Fz,Cz点潜伏期没有显著性变化,而波幅降低,差异具有统计学意义(P<0.05)。③首发病患和复发病患MMN的潜伏期和波幅差异均没有统计学意义。结论精神分裂症患者存在认知功能缺陷,MMN可以为其提供临床参考,且MMN是一个素质性指标,与发病次数没有显著性相关。     

帕金森病患者眼球运动预测性控制的临床观察

目的 研究帕金森病(PD)患者眼球运动预测性控制能力,探讨其临床意义.方法 利用视频眼震电图(VNG)对早中期原发性PD患者和年龄、性别相匹配的正常人做可预测性眼球扫视运动,比较两组的扫视潜伏期.结果 在随机性扫视方案中,PD组和对照组扫视潜伏期分别为284ms±58 ms和236 ms±37 ms,两者比较差异有统计学意义(P=0.003);在可预测性扫视方案中,PD组和对照组的扫视潜伏期分别为150 ms±138 ms和59 ms±102 ms,两组差异有统计学意义(P=0.002);在可预测扫视方案中,PD组出现预见性扫视的次数占21%,对照组则占31%,两者相比,差异有统计学意义(P=0.003).结论 PD患者存在眼球运动预见性机制缺陷,表明PD在疾病早期可能出现部分认知功能障碍.     

精神分裂症认知功能障碍与事件相关电位P300的相关性研究

目的 探讨首发精神分裂症患者认知障碍与事件相关电位P300之间的相关性。方法 应用丹麦丹迪公司KeyPointV2．12诱发电位仪（ERPs），对60例精神分裂症患者、3例急性精神分裂样障碍患者及40例健康人（对照组）使用听觉Oddball范式检测P300成分，同时运用阳性和阴性症状量表（PANSS）对患者组进行精神症状评定，并用主成分分析方法分离出几个症状因子。结果 PANSS项目主成分分析显示认知障碍、阴性症状、抑郁症状、敌对／兴奋、妄想／幻觉5个因子；与健康对照组相比，P300波幅在F2、Cz、P2、T3、T45个记录区差异均有显著性（P〈0．05，P〈0．01），P300潜伏期无显著差异（P〉0．05），患者组认知障碍因子仅与Fz、T3处P300波幅呈负相关（r=-0．43，P〈0．01；r=-0．33，P〈0．05）。结论 额及颞区P300波幅降低反映精神分裂症患者一定程度的认知损害。     

轻度认知损害和阿尔茨海默病的听觉诱发电位与P300检查的性别差异

目的:比较性别对阿尔茨海默病(AD)、轻度认知损害(MCI)的脑干听觉诱发电位(BAEP)、事件相关电位(ERP)P300的影响.方法:对38例MCI、26例AD患者、20例健康老年人(HC)进行BAEP和P300检查,根据性别的不同,进行组间和组内的比较.结果:组内BAEP比较,MCI组在左侧Ⅲ、Ⅴ波潜伏期差异有显著性(P<0.01);HC组在左侧Ⅳ、Ⅴ波潜伏期差异有显著性(P<0.01);AD组组内比较,差异无显著性;P300比较,MCI潜伏期女性比男性延长,差异有显著性(P<0.01);AD和HC组差异无显著性.组间BAEP比较,AD与MCI仅男性左侧Ⅰ、Ⅱ差异有显著性.AD与HC比较,男性在左侧Ⅰ、Ⅲ～Ⅴ和右侧Ⅳ波,女性在左右两侧Ⅰ～Ⅴ差异有显著性.MCI与HC比较,男性在左侧Ⅲ、Ⅴ和右侧Ⅰ、Ⅳ、Ⅴ波,女性在右侧Ⅰ、Ⅱ、Ⅴ波差异有显著性.P300检查发现,男性AD的潜伏期比MCI显著延长.AD和HC比较,无论男女在潜伏期的Fz、Cz、Pz点差异有显著性.MCI与HC比较,女性在潜伏期的Fz、Cz、Pz点,差异有显著性.结论:性别对MCI的BAEP和P300检查均有影响,而对AD检查未显示明显的影响.相同性别的AD、MCI和HC的BAEP和P300的表现也有不同,可能对三者的鉴别有意义.     

老年阻塞性睡眠呼吸暂停综合征患者认知功能评估

目的探讨老年阻塞性睡眠呼吸暂停综合征（OSAS）患者的认知状况,及其与睡眠结构紊乱和低氧血症之间的关系。方法受试者分为OSAS组（n=26）及对照组（n=16）,均进行多导睡眠图（PSG）、简易智能精神状态量表（MMSE）和事件相关电位（ERP）检测。结果 OSAS组Ⅲ＋Ⅳ期和REM期睡眠时间比例、最低及平均血氧饱和度明显减少（P〈0.05）,醒觉次数及睡眠呼吸紊乱指数（AHI）明显增加（P〈0.05）;OSAS组MMSE总分显著低于对照组（P〈0.05）,且MMSE总分与AHI呈显著负相关（r=-0.498,P〈0.05）,与平均SaO_2及最低SaO_2呈显著正相关（r分别为0.583和0.441,P均〈0.05）;OSAS组P300潜伏期显著长于对照组（P〈0.05）,P300潜伏期与MMSE总分呈显著负相关（r=-0.512,P〈0.05）。结论老年OSAS患者存在认知功能损害,夜间低氧血症可能起重要作用。