喹硫平治疗心境障碍的作用机制

双相情感障碍，简称双相障碍（BPD），是针对单相情感障碍（重性抑郁）而言。DSM—Ⅳ和ICD-10将二者并列为两种主要心境障碍。顾名思义，双相兼有心境变高和变低两极性特点，是心境在正常，高涨（躁狂），低落（抑郁）之间往返摆动。DSM—Ⅳ将双相障碍又分为若干个亚型，这在诊断上是一个重要变更，突出表现在分出了双相Ⅰ型和双相Ⅱ型，基本区别是前者一般以躁狂发作严重；后者以抑郁发作严重，躁狂发作较轻，且家族史中阳性率高，发作次数多，对治疗反应差。流行病学资料显示，双相Ⅰ型发病率为0．5％～2．4％，双相Ⅱ型发病率为0．2％-5．0％。双相障碍是精神科常见病，多发病，具有较高同病率（焦虑障碍，酒依赖，药物依赖）与较高死亡率（特别是在抑郁相或者混合状态）特点。目前有关躁狂症状的治疗已有很大进展；而抑郁症状则被认为治疗困难，传统抗抑郁药物或心境稳定剂疗效均不佳。美国最近一项研究发现，喹硫平除对躁狂症状（单药或喹硫平＋锂盐／双丙戊酸钠）或精神分裂症疗效明确外，还能控制抑郁症状，从而提高患者生活质量。因此，喹硫平是目前唯一被FDA批准单药既可用于治疗双相躁狂急性发作，     

拉莫三嗪治疗双相情感障碍

双相情感障碍的药物治疗其目的是通过阻止情绪的环性变化以维持情感于良好状态。许多病人需要服用多种药物 (抗抑郁药、抗精神病药、抗焦虑药等 )来保持情绪的稳定。目前仍无一种广谱药物能有效的控制双相障碍的发作。锂剂、丙戊酸类、卡马西平等虽具有抗躁狂作用 ,但对抑郁相及混合状态疗效欠佳。人们期待着新的情绪稳定剂的问世 ,以控制躁狂、抑郁及混合发作。拉莫三嗪 ( lamotrigine)是一种抗癫痫药物 ,常用于治疗局限性发作。最近有人报告对双相障碍有效 ,包括缓解快速循环型症状、混合状态等。本文首次观察其治疗双相障碍的作用范围、…     

双相情感障碍抑郁相与单相抑郁发作临床分析

目的:对双相情感障碍抑郁相和单相抑郁发作进行临床分析。方法:对双相情感障碍抑郁相和单相抑郁发作患者各30例进行临床分析。结果:双相情感障碍抑郁相有如下特点:①发病年龄早;②女性多见;③具有“精力过盛”性人格;④一级亲属中有双相障碍的家族史;⑤症状多为非典型抑郁发作或伴有精神病性症状。结论:如首次抑郁发作的症状符合以上特点,则可能以后发展为双相情感障碍,应使用足量心境稳定剂,谨慎使用抗抑郁剂,以免转为躁狂发作。     

不同发作类型双相障碍患者自知力及服药态度比较

目的比较躁狂发作、抑郁发作及混合状态的双相障碍住院患者出院前的自知力及服药态度,以了解不同发作类型双相障碍的自知力及服药态度在出院前的差异,为出院后制定康复方案提供参考。方法连续入组罗定市第三人民医院2014年5月-2016年12月收治的符合《国际疾病分类(第10版)》(ICD-10)诊断标准的双相障碍住院患者266例,其中躁狂发作116例,抑郁发作94例,混合状态56例。采用汉密尔顿抑郁量表17项版(HAMD-17)、杨氏躁狂评定量表(YMRS)、自知力与治疗态度问卷(ITAQ)及服药态度清单(DAI)在出院当天分别评定精神症状、自知力及服药态度。采用单因素方差分析比较三组HAMD-17、YMRS、ITAQ及DAI评分。结果 HAMD-17、YMRS评分组间比较差异均无统计学意义(P均0.05)。ITAQ、DAI评分组间比较差异有统计学意义(F=6.205、5.481,P=0.002、0.005),两两比较结果显示,抑郁发作组及混合状态组ITAQ、DAI评分均高于躁狂发作组,差异均有统计学意义(P均0.05);抑郁发作组及混合状态组ITAQ、DAI评分比较差异无统计学意义(P均0.05)。结论不同发作类型的双相障碍住院患者出院前的自知力及服药态度存在差异,躁狂发作患者的自知力及服药态度较抑郁发作及混合状态患者差。     

microRNA在双相情感障碍中的研究进展

双相情感障碍(Bipolar disorder,BD)是一种临床上常见的精神科疾患,主要临床特征为情绪的转变:既有躁狂或轻躁狂发作,又有抑郁发作的一类心境障碍.目前双相情感障碍的诊断只能依靠专业精神科医师的精神状况检查,治疗主要针对临床症状,锂盐是主要治疗药物之一[1],针对双相情感障碍的系统心理治疗可以预防或延缓其复发[2],但目前该疾病尚不能治愈[3].     

双相情感障碍混合发作血清细胞因子水平研究

目的：比较双相情感障碍混合发作与躁狂发作及抑郁发作患者之间血清细胞因子的水平。方法：采用酶联免疫吸附法测定38例双相情感障碍混合发作患者（混合组）、54例躁狂发作患者（躁狂组）、47例抑郁发作患者（抑郁组）及38名正常人（对照组）血清白介素-1（IL-1β）、白介素-2（IL-2）及白介素-6（IL-6）的浓度;混合组患者于治疗前和治疗8周进行Hamilton抑郁量表（HAMD-24）和Young躁狂量表（YMRS）评定。结果：混合组IL-1β浓度显著高于躁狂组及抑郁组（P〈0.01）,但与对照组差异无统计学意义（P〉0.05）。混合组IL-2浓度与躁狂组、抑郁组及对照组之间差异均无统计学意义（P〉0.05）。混合组IL-6浓度显著高于躁狂组、抑郁组及对照组（P〈0.001）。混合组IL-6浓度治疗8周后较治疗前显著下降（t=3.372,P〈0.01）,与对照组比较差异无统计学意义（t=1.823,P〉0.05）。混合组治疗前后IL-6浓度差值与HAMD-24、YMRS减分率之间均无显著相关（r分别=-0.211、-0.100,P均〉0.05）。结论：双相情感障碍混合发作可能存在IL-6诱导的免疫功能异常,有不同于双相情感障碍躁狂发作及抑郁发作的生物学特征。     

快速循环型双相障碍的药物治疗

虽然Kraepelin对躁狂和抑郁的描述已有一个多世纪，但快速循环这一术语直至1974年才由Dunner和Fieve引入。DSM-Ⅳ和CCMD-3将快速循环双相障碍定义为在过去的12个月中有4次心境发作，符合重性抑郁、躁狂、混合性、或轻躁狂发作的诊断标准。所谓发作是指二者之间至少2个月的部分或充分缓解，或者从一相转变为另一相。二大分类系统对快速循环的定义并无显著的差异。快速循环是作为一种病程的特异性而非疾病的亚型，因而提示所有的双相患者在病程中都有快速循环的可能。过去30年国内外研究有关陕速循环发生率的结果差异很大，范围是占双相患者的10％-56％不等。快速循环型的难治性给精神科医生带来挑战。庆幸的是，近来的相关研究和新型药物的进展，给快速循环提供了较好的治疗方案。本文主要就锂盐、抗痉挛药、不典型抗精神病药等对快速循环型治疗、疗效相关因素和疗效评定等方面进行阐述。     

精神分裂症与分裂情感性障碍的核心特征与治疗

精神分裂症是一种严重的精神障碍,在普通人群中的患病率为0.5%~1.0%,在住院患者中,其比例更高。由于精神分裂症的不同亚型在治疗上并无区别,并且容易给临床诊断造成混乱,因此,DSM-5去除了精神分裂症的亚型。分裂情感性障碍的患病率约为精神分裂症的一半。其症状相当于既有精神分裂症的A组症状,同时又有心境症状,例如重性抑郁或躁狂。诊断此障碍必须符合两个关键标准:(1)在半数以上的病程中,除了存在精神分裂症诊断标准A的症状以外,还伴有重性抑郁发作或躁狂发作;(2)在没有心境发作至少2周(抑郁或躁狂)的情况下,存在持续的妄想或幻觉,即证明这些精神病性症状并非由心境发作所致。     

心境稳定剂临床应用的研究进展

1　概述境稳定剂目前尚缺乏统一的定义[1] 。有学者认为 ,理想的心境稳定剂应具有如下特点 :①对急性躁狂状态或混合状态治疗有效 ;②对双相情感障碍中的抑郁发作或混合状态中的抑郁症状有效 ;③可预防躁狂和抑郁的复发 ;④不会恶化躁狂或抑郁症状 ,不会诱发症状转相或诱发快速循环发作。目前的药物均无法满足上述标准。因此 ,有人提出一个相对宽松的标准 ,包括 :①至少符合上述标准中的 2条以上 ;②符合前 3条标准中的 1条以及最后 1条标准[2 ] 。目前 ,心境稳定剂的分类尚未被药理学所认可。但在精神病学领域 ,人们早已将以碳酸锂为代表的…     

有精神病性症状躁狂发作的临床特征研究

目的探讨有精神病性症状的躁狂发作的临床特征。方法使用自编的一般情况问卷及有精神病性症状的躁狂发作的精神症状调查问卷,共收集135例"有精神病性症状的躁狂发作"患者,并根据患者的精神病性症状是否与心境相协调进一步分成两组(非典型组59例和典型组76例),比较两组间临床资料的异同。结果在有精神病性症状的躁狂发作中,伴有与心境不协调的精神病性症状的非典型躁狂发作占43.7%、伴有与心境协调的精神病性症状的典型躁狂发作占56.3%,非典型躁狂发作在起病形式、病程特点、病前社会功能、病前性格、首发症状及近期疗效与典型躁狂发作相比有显著性差异(P<0.05),典型组在起病形式上以急性起病者居多,病程多表现为间歇性病程,病前社会功能良好,性格以外向者居多,多以情感症状为首发症状及近期疗效相对较好。结论伴有与心境协调的精神病性症状的典型躁狂发作和伴有与心境不协调的精神病性症状的非典型躁狂发作在临床上均极为常见,非典型躁狂发作为躁狂发作的一个特殊的亚型,我们应对其加强认识。     

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.