奥氮平与利培酮治疗难治性精神分裂症的对照研究

目的 比较奥氮平与利培酮对难治性精神分裂症的疗效及安全性.方法 68例难治性精神分裂症患者按照排列表法随机分为奥氮平组[34例,(24.1±5.4)mg/d]和利培酮组[34例,(7.9±1.8)mg/d],疗程均为12周.采用阳性和阴性症状量表(PANSS)、临床总体印象量表(CGI)及治疗中需处理的不良反应症状量表(TESS),在治疗前及治疗第1,2,4,8,12周末分别评定疗效和不良反应.结果 (1)奥氮平组PANSS总分、阳性症状分、阴性症状分及一般病理分均从治疗第2周末起较治疗前下降(P<0.05～0.01);利培酮组PANSS总分、阳性症状分、一般病理分从治疗第2周末起,阴性症状分从第4周末起,较治疗前下降(P<0.05～0.01);奥氮平组从治疗第2周末起各时点PANSS总分、阴性症状分均低于利培酮组(P<0.05～0.01).(2)治疗第2周末起,2组临床总体印象量表-严重程度和改善程度(CGI-SI)总分均较治疗前下降(P<0.05～0.01);2组间各时点CGI-SI分的差异无统计学意义(P>0.05).(3)治疗第12周末,奥氮平组、利培酮组临床总有效率分别为65%、41%,差异有统计学意义(P<0.05).(4)奥氮平组、利培酮组不良反应发生率分别为53%(18/34)和59%(20/34),差异无统计学意义(P>0.05);奥氮平组体质量增加发生率高于利培酮组(P<0.05);利培酮组静坐不能、异常泌乳和(或)闭经、肌张力增高的发生率高于奥氮平组(P<0.05).结论 奥氮平对难治性精神分裂症有良好疗效,不良反应轻微.     

五种常用二代抗精神病药物对首发精神分裂症患者泌乳素的近期影响

目的探讨目前临床常用的5种二代抗精神病药物对首发精神分裂症患者血清泌乳素(prolactin,PRL)水平的近期影响。方法 250例首发精神分裂症患者随机分为5组,分别采用利培酮、奥氮平、帕利哌酮、喹硫平、齐拉西酮治疗6周,检测基线(入组时)和治疗每周末血清泌乳素水平,并在基线和治疗第6周末采用阳性与阴性症状量表(positive and negative symptom scale,PANSS)和副反应量表(treatment emergent symptom scale,TESS)评估各药物疗效与安全性。结果患者泌乳素水平经重复测量方差分析示,时间因素主效应、分组因素主效应和时间与分组的交互效应均具有统计学意义(均P0.01)。其中第1周末时,利培酮组泌乳素水平均高于另外4组(P0.05);第2、3、4、5周末时,利培酮组和奥氮平组泌乳素水平均高于其他3组(P0.05);第6周末,利培酮组、奥氮平组和帕利哌酮组均高于其他2组(P0.05),并且利培酮组和奥氮平组高于帕利哌酮组(P0.05)。治疗前后PANSS量表的变化值在5组间有统计学差异(P0.05),不良反应发生率无统计学差异(P0.05)。结论抗精神病药物治疗使患者泌乳素水平逐渐增高;不同二代抗精神病药物对泌乳素的近期影响不同,利培酮和奥氮平在治疗早期就能明显升高泌乳素水平。     

非典型抗精神病药对男性精神分裂症患者性功能影响的初步分析

目的 探讨喹硫平、利培酮、奥氮平及氯氮平对男性精神分裂症患者性功能影响的差异.方法 将门诊就诊的男性精神分裂症患者145例,分为喹硫平组 30 例、利培酮组 47 例、奥氮平组 31 例及氯氮平组 37 例.检测各组患者血清泌乳素水平.使用简明男性性功能量表、阳性与阴性综合征量表(PANSS)评估性功能及精神症状,用副反应量表(TESS)评估药物治疗的不良反应.共观察8周.结果 治疗第 8 周末,利培酮组的性功能量表总分及因子分均较治疗前降低,奥氮平组的性唤起因子及性功能因子得分有所下降,氯氮平组的性满意度因子及性功能因子得分有所下降.喹硫平组得分无明显变化.利培酮组和奥氮平组治疗第 8 周末的血清泌乳素水平高于基线水平[利培酮组:(12±5)ng/ml,(20±6)ng/ml,t=13.92,P＜0.01;奥氮平组:(13±6)ng/ml,(18±5)ng/ml,t=8.27,P＜0.01],喹硫平组和氯氮平组无明显变化.影响男性精神分裂症患者性功能的因素有泌乳素、年龄及TESS分.结论 常见非典型抗精神病药物对男性精神分裂症患者的性功能影响有所不同.     

奥氮平与利培酮治疗青少年首发精神分裂症对照研究

目的比较奥氮平与利培酮治疗青少年首发精神分裂症的疗效和安全性。方法对60例青少年期首发精神分裂症患者随机分为两组,分别给予奥氮平与利培酮治疗8周。于治疗前及治疗后1、2、6、8周末进行阳性和阴性症状量表(PANSS)及副反应量表(TESS)评定。结果奥氮平与利培酮总的疗效无显著性差异,均能快速起效,PANSS总分比较治疗第1周与第2周末奥氮平组显著低于利培酮组,利培酮组锥体外系反应显著多于奥氮平组。结论奥氮平与利培酮均是治疗首发青少年精神分裂症安全有效的非典型抗精神病药物,可根据患者的不同情况分别选择。     

非典型抗精神病药对精神分裂症患者血清甲状腺激素水平的影响

目的探讨非典型抗精神病药利培酮、奥氮平对精神分裂症患者甲状腺功能的影响。方法将符合《中国精神障碍分类与诊断标准(第3版)》(CCMD-3)的54例精神分裂症患者,采用随机数字表法分成服用利培酮和奥氮平两组,其中利培酮组29例,给药初始剂量为4 mg/d,2周内逐渐加至6 mg/d,观察至8周末;奥氮平组25例,给药初始剂量为10 mg/d,2周内逐渐加至15mg/d,观察至8周末。分别在治疗前、治疗第8周末测血清总三碘甲状腺原氨酸(TT3)、血清总甲状腺素(TT4)、游离三碘甲状腺原氨酸(FT3)、血清游离甲状腺素(FT4)及促甲状腺激素(TSH)水平。结果利培酮组治疗前后血清TT3、TT4、FT3、FT4、TSH水平差异均无统计学意义(P0.05),奥氮平组治疗前后血清TT3、TT4、TSH水平差异无统计学意义(P0.05),治疗前后FT3、FT4差异有统计学意义[(3.01±0.28)pg/mlvs.(2.81±0.26)pg/ml,(0.91±0.2)pg/mlvs.(0.77±0.14)pg/ml,P0.05]。利培酮组治疗后血清TT3、FT3水平升高,较奥氮平组差异有统计学意义(P0.05)。结论利培酮对精神分裂症患者甲状腺功能无实质影响,奥氮平能影响精神分裂症患者血清FT3、FT4的水平,在治疗中应注意监测服用奥氮平的精神分裂症患者的甲状腺激素水平。     

阿立哌唑治疗利培酮所致男性精神分裂症患者泌乳素升高的疗效分析

目的 探讨阿立哌唑治疗利培酮所致男性精神分裂症患者泌乳素升高的疗效及安全性。 方法 60例患者使用利培酮治疗4周末随机分配为研究组（利培酮+阿立哌唑）和对照组（利培酮）各30例， 观察至8 周末。在基线、第4 周末、第8 周末监测两组患者的泌乳素（PRL）水平，并进行阳性与阴性症状 量表（PANSS）和UKU 不良反应量表评估。结果 使用利培酮治疗4 周末，两组患者PRL水平均显著升 高（P＜ 0.01）。第8 周末研究组PRL水平与自身相比显著降低（P＜ 0.01），且与对照组比较差异有统计学 意义（P＜ 0.01）；两组患者PANSS 评分均较前显著降低（P＜ 0.01），但两组间PANSS 评分差异无统计学意 义。两组均多见的不良反应有男性乳房发育、乏力、思睡、静坐不能、肌张力障碍、震颤，但上述不良反 应发生率组间比较差异均无统计学意义（P＞0.05）。结论 利培酮可导致男性精神分裂症患者PRL增加， 合并使用阿立哌唑可显著降低利培酮所致的男性精神分裂症患者PRL增高，但未增加不良反应发生率。     

抗精神病药对男性精神分裂症患者性功能影响的相关性分析

目的 探讨抗精神病药喹硫平、利培酮、氯丙嗪及氯氮平对男性精神分裂症患者性功能影响的差异及相关因素分析.方法 将门诊就诊的男性精神分裂症患者120例,随机分为喹硫平组38例、利培酮组41例、氯丙嗪39例、氯氮平组42例.应用酶联免疫吸附法检测血清泌乳素、放射免疫法检测睾酮水平,检测各组患者治疗前及治疗第12周末的血清泌乳素(PRL)和睾酮水平.分别于基线及治疗第12周末使用简明男性性功能量表、阳性与阴性症状量表(PANSS)评估性功能及精神症状,于治疗第12周末用副反应量表(TESS)评估药物治疗的不良反应.结果 治疗第12周末,利培酮组、氯丙嗪组、氯氮平组的性功能量表总分较治疗前降低(P＜0.05).利培酮组和氯丙嗪组治疗第12周末的血清泌乳素水平高于基线水平[利培酮组:(12±5)ng/ml,(22±6)ng/ml,t=13.92,P＜0.01;氯丙嗪组:(13±6)ng/ml,(19±5)ng/ml,t=8.27,P＜0.01],喹硫平组和氯氮平组无明显变化.利培酮组和氯丙嗪组治疗第12周末的血睾酮水平低于基线水平:利培酮组:(0.77±0.21)ng/ml,(0.27±0.11)ng/ml,t=13.22,P＜0.01;氯丙嗪组:(0.90±0.11)ng/ml,(0.32±0.14)ng/ml,t=11.27,P＜0.01;喹硫平组和氯氮平组无明显变化.影响男性精神分裂症患者性功能的因素有泌乳素、睾酮、年龄及TESS分.结论 抗精神病药物中,利培酮和氯丙嗪易引起血清泌乳素升高和血清睾酮降低,氯氮平具有较多药物不良反应,这些可能造成男性精神分裂症患者的性功能减退.     

奥氮平与利培酮治疗精神分裂症首次发病患者的疗效

目的:探讨奥氮平与利培酮治疗首发精神分裂症的疗效以及对生活质量的影响。方法:68例首发精神分裂症患者随机分为奥氮平组和利培酮组各34例,分别给予奥氮平和利培酮治疗8周,随访6个月。于治疗前后采用阳性与阴性症状量表(PANSS)及治疗中出现的症状量表(TESS)评定疗效及不良反应;于治疗6个月前后,采用生活质量综合评定问卷(GQOLI)评定生活质量。结果:两组PANSS评分治疗后均有显著下降(P<0.05或P<0.01)。奥氮平组GQOLI总分及各维度与利培酮组GQOLI总分及躯体功能、心理功能维度治疗前后差异均有统计学意义(P均<0.01);两组间比较,治疗前两组GQOLI评分差异无统计学意义,6个月后随访,在躯体功能及社会功能差异有统计学意义(P均<0.01)。结论:奥氮平与利培酮治疗首发精神分裂症疗效相当,但奥氮平在提高生活质量方面略优于利培酮。     

奥氮平联用氟西汀治疗精神分裂症阴性症状的对照研究

目的 探讨奥氮平合并氟西汀治疗精神分裂症阴性症状的疗效和安全性.方法 将59例以阴性症状为主的精神分裂症患者随机分为研究组(奥氮平合用氟西汀治疗,30例)和对照组(单用奥氮平治疗,29例),于治疗前和治疗后第2、4、8、12周末使用阳性和阴性综合征量表(PANSS)和阴性症状量表(SANS)评定两组的疗效,药物治疗中需处理的不良反应症状量表(TESS)评定两组的不良反应.结果 治疗后第2周末研究组PANSS总分、阴性因子分较治疗前降低,差异有统计学意义(P＜0.05),治疗后第4周末研究组PANSS总分、阴性因子分及SANS总分、情感平淡因子分明显低于对照组,差异有统计学意义(P＜0.05,P＜0.01).两组TESS评分体质量改变差异有统计学意义(P＜0.05),余无明显差异.结论 奥氮平合并氟西汀能显著改善精神分裂症患者的阴性症状,且安全性好.     

比较3种非典型抗精神病药对精神分裂症首次发作患者处理速度测验的影响

目的比较奥氮平、利培酮和阿立哌唑三种非典型抗精神病药对精神分裂症首次发作患者处理速度测验成绩的影响。方法 91例精神分裂症首发患者随机分配至阿立哌唑组(n=27)、利培酮组(n=37)和奥氮平组(n=27),在治疗前和治疗12周末完成如下测验:阳性与阴性症状量表、沟槽钉板测验、连线测验、Stroop色词测验、数字符号编码测验和范畴流利测验。结果 (1)治疗12周后,三组PANSS评分均较治疗前显著降低(P0.001),三组间PANSS减分率的差异无统计学显著性;(2)奥氮平组治疗后的利手、连线A、颜色连线1、颜色连线2以及Stroop测验B得分均较治疗前显著改善(P0.05～0.001);利培酮组治疗后的连线A、颜色连线1、颜色连线2、Stroop测验C以及数字符号编码得分均较治疗前显著改善(P0.05～0.001);阿立哌唑组除颜色连线2外,其它各项评分的治疗前后比较差异无显著性(P0.05)。结论在对首发精神分裂症患者的处理速度的改善方面,奥氮平和利培酮可能优于阿立哌唑。     

Denervation study of synapses of organ of corti of old world monkeys

Fine structural characteristics of synapses in the spiral organ of Corti were examined, with reference to differences between inner and outer haircell systems, and to location of neurons of origin of efferent axons. Surgical interruption of crossed olivocochlear bundle, of vestibular nerve, of facial nerve, and excision of superior cervical ganglia were used to determine the pathways of efferent axons. Interruption of the vestibular nerve near the brainstem results in degeneration of all efferent terminals on outer hair cells. Mid-line lesions at, and caudal to, the facial colliculus result in degeneration of about half of these efferent terminals. Efferent synaptic bulbs to the inner hair-cell system are small, of the order of one micron, and form type 2 junctions with afferent dendrites. They tend to have more large dense-core vesicles (about 80 nm) than the large efferent terminals of the outer hair-cell system, and appear to be the terminals of axons in the habenula perforata, which exhibit varicosities laden with large dense core vesicles. The varicosities are unaffected by excision of the superior cervical ganglia. So far as our material can reveal, it appears that the varicosities in the habenula perforata do not survive vestibular root interruption, nor do the efferent processes in the internal spiral bundle or at the base of inner hair cells. Most interestingly, the afferent processes of the inner hair-cell system, as identified for example by their relation to pre-synaptic bodies in the inner hair cells, are subject to a trans-synaptic reaction after severance of the vestibular root. They undergo a dramatic cytological transformation, characterized by increase of volume, engorgement with microtubules, microfilaments, microvesicles of various sizes, and clusters of lysosomes. Thus, both the efferent and afferent terminals of the inner hair-cell system show marked cytological differences from the corresponding terminals of the outer hair cell system.     

Mechanism of action of tubocurarine on nicotinic cholinoreceptors of neurons of the sympathetic ganglia of rats

Tubocurarine (Tc) effect on membrane currents elicited by acetylcholine (ACh) was studied in isolated superior cervical ganglion neurons of rat using patch-clamp method in the whole-cell recording mode. The "use-dependent" block of ACh current by Tc was revealed in the experiments with ACh applications, indicating that Tc blocked the channels opened by ACh. Mean lifetime of Tc-open channel complex, tau, was found to be 9.8 +/- 0.5 s (n = 7) at -50 mV and 20-24 degrees C. tau exponentially increased with membrane hyperpolarization (e-fold change in tau corresponded to the membrane potential shift by 61 mV). Inhibition of the ACh-induced current by Tc (3-30 microM/1) was completely abolished by membrane depolarization to the level of 80-100 mV. Inhibition of ACh-induced current was augmented at increased ACh doses. It is concluded that the open channel block produced by Tc is likely to be the only mechanism for Tc action on nicotinic acetylcholine receptors in superior cervical ganglion neurons of rat.     

The effect of age of onset of PD on risk of dementia

Background Dementia occurs in the majority of patients with Parkinson’s disease (PD). Late onset of PD has been reported to be associated with a higher risk for dementia. However, age at onset (AAO) and age at baseline assessment are often correlated. The aim of this study was to explore whether AAO of PD symptoms is a risk factor for dementia independent of the general effect of age. Methods Two community-based studies of PD in New York (n = 281) and Rogaland county, Norway (n = 227) and two population-based groups of healthy elderly from New York (n = 180) and Odense, Denmark (n = 2414) were followed prospectively for 3–4 years and assessed for dementia according to DSM-IIIR. All PD and control cases underwent neurological examination and were followed with neurological and neuropsychological assessments. We used Cox proportional hazards regression based on three different time scales to explore the effect of AAO of PD on risk of dementia, adjusting for age at baseline and other demographic and clinical variables. Findings In both PD groups and in the pooled analyses, there was a significant effect of age at baseline assessment on the time to develop dementia, but there was no effect of AAO independent of age itself. Consistent with these results, there was no increased relative effect of age on the time to develop dementia in PD cases compared with controls. Interpretation This study shows that it is the general effect of age, rather than AAO that is associated with incident dementia in subjects with PD. Received in revised form: 22 December 2005     

Limits of deinstitutionalization--perspectives of relatives of psychiatric patients

After a hopeful beginning, the social process of the reintegration of those with severe mental illness has come to a standstill. I am led to wonder whether "the community" really wants to live together with people suffering from severe mental illness, and if so, how closely? As long as the medical treatment of mental illness provided by the general practitioners is fundamentally deficient, as they are not able to prescribe the necessary interventions--such as out-patient psychiatric nursing, and service providers in the out-patient sector are content with offering increasingly intensive forms of care for the less seriously ill at the cost of the Social Welfare System--the reintegration of those with serious mental illness remains an illusion--which is mainly to the benefit of providers of residential care in homes and hostels.     

Summary of Legislation of 1933 of interest to the Department of Mental Hygiene

Psychiatric Quarterly -