中学生生活事件与抑郁的关系

目的：探讨中学生具体生活事件和抑郁状况的关系。方法：采用青少年生活事件量表和中学生抑郁量表对558名中学生进行问卷调查。结果：除个别生活事件项目外，青少年生活事件量表中的多数项目均与中学生抑郁呈显著正相关；生活事件与抑郁的回归分析表明，学习负担重，受人歧视冷遇，不喜欢上学，家庭经济困难，与同学或好友发生纠纷，升学压力，被盗或丢失东西，考试失败或不理想，受批评或处分，生活习惯明显变化，恋爱不顺利或失恋，被罚款等12类生活事件进入了对抑郁的回归方程，对抑郁的预测作用较大。结论：中学生生活事件与其抑郁存在广泛的正相关关系。12项生活事件对中学生抑郁有较大的预测作用。     

CD8+T-bet+ cells as a predominant biomarker for inclusion body myositis

Background

Myositis is a heterogeneous group of muscular auto-immune diseases with clinical and pathological criteria that allow the classification of patients into different sub-groups. Inclusion body myositis is the most frequent myositis above fifty years of age. Diagnosing inclusion body myositis requires expertise and is challenging. Little is known concerning the pathogenic mechanisms of this disease in which conventional suppressive-immune therapies are inefficacious.

SARS疫情期间公众心态影响及变化趋势分析

目的：探索重大突发性公共卫生事件对社会公众心理行为的影响，以及在不同阶段中公众心态变化的特点。方法：对SAILS流行期间374人次的心理咨询记录进行分析，依据疫情发展情况，比较各阶段的差异。结果：在咨询者中，女性(59．4％)多于男性(40．6％)；根据疫情变化将咨询记录数据划分为三个阶段，分析发现随着疫情缓和，针对SARS症状的咨询者显著减少，从13．1％降低到1．8％；有关社会生活的咨询者显著增多，从8．7％上升到12．3％；在有关情绪问题的咨询者中，伴有相关症状者显著减少，从23．0％降低到4．5％；不伴相关症状者显著增多，从77．0％上升到95．5％。结论：整个SAILS疫情期问，情绪问题始终占第一位；随SARS疫情缓和，社会公众对于疾病本身的关注减少，而与疫情有关的社会生活问题增多；面对突发性公共卫生事件，及时开通心理咨询热线电话是十分必要的。     

大学生主观幸福感及其影响因素

目的 考察大学生主观幸福感的现状,探讨自尊、社会支持、生活事件等对其主观幸福感的影响.方法 对1～4年级的300名大学生进行幸福感指数量表、自尊量表、社会支持评定量表和青少年生活事件量表等问卷测量.结果 ①大学生主观幸福感处于中等偏上水平(=9.71).②大学生主观幸福感得分在性别上存在显著差异(总分:t=2.239,P＜0.05).③大学生主观幸福感与自尊、社会支持呈显著正相关.④大学生主观幸福感与生活事件呈显著负相关.⑤自尊对大学生主观幸福感有显著的正向预测作用(β=0.308,P＜0.05).⑥社会支持对大学生的主观幸福感也有显著的正向预测作用(β=0.163,P＜0.01).结论 自尊和社会支持对大学生的主观幸福感有显著的正向预测作用,生活事件对大学生主观幸福感的影响较小.     

A paradigm for single nucleotide polymorphism analysis: the case of the acetylcholinesterase gene

Acetylcholinesterase (AChE) plays a crucial physiological role in termination of impulse transmission at cholinergic synapses through rapid hydrolysis of acetylcholine. It is a highly conserved molecule, and only a few naturally occurring genetic polymorphisms have been reported in the human gene. The goal of the present study was to make a systematic effort to identify natural single nucleotide polymorphisms (SNPs) in the human ACHE gene. To this end, the genomic coding sequences for acetylcholinesterase of 96 unrelated control individuals from three distinct ethnic groups were analyzed. A total of 13 ACHE SNPs were identified, 10 of which are newly described, and five that should produce amino acid substitutions [c.101G>A (p.Arg34Gln), c.169G>A (p.Gly57Arg), c.1031A>G (p.Glu344Gly), c.1057C>A (p.His353Asn), and c.1775C>G (p.Pro592Arg)]. Population frequencies of 11 of the 13 SNPs were established in four different populations: African Americans, Ashkenazi Jews, Sephardic Jews, and Israeli Arabs; 15 haplotypes and five ethnospecific alleles were identified. The low number of SNPs identified until now in the ACHE gene is ascribed to technical hurdles arising from the high GC content and the presence of numerous repeat sequences, and does not reflect its intrinsic heterozygosity. Among the SNPs resulting in an amino acid substitution, three are within the mature protein, mapping on its external surface: they are thus unlikely to affect its catalytic properties, yet could have antigenic consequences or affect putative protein-protein interactions. Furthermore, the newly identified SNPs open the door to a study of the possible association of AChE with deleterious phenotypes-such as adverse drug responses to AChE inhibitors employed in treatment of Alzheimer patients and hypersensitivity to pesticides.     

In support of hassles as a measure of stress in predicting health outcomes

We investigated the impact of frequently occurring minor stressors (hassles) upon health status in a sample of low-income, elderly persons with osteoarthritis. These individuals are characterized by conditions which are precursors to experiencing stress. Using a modified Hassles scale, we replicated some important findings in a sample demographically distinct from earlier studies on hassles. Specifically, hassles were better predictors of health status than major life change events, and the influence of life change events was indirect, i.e., it increased hassles, which in turn, negatively affected health status. Furthermore, hassles correlated strongly with validated indicators of health status. By replicating earlier studies in a demographically dissimilar sample, and by finding significant correlations between hassles and valid physical health measures, we have strengthened the conceptual development of hassles.     

Long-term evaluation of usefulness of skin and incremental challenge tests in patients with history of adverse reaction to local anesthetics

A variety of adverse reactions to local anesthetics has been described, some of which are thought to be allergic. Different protocols of prick and intradermal skin tests as well as subcutaneous challenge tests are used to select a local anesthetic which can safely be used. Their long-term effectiveness has not yet been assessed. Twenty-eight patients with a history of adverse reaction to local anesthetics were evaluated over a 3-year period. Loss of consciousness occurred in eight patients, skin reaction in nine, and vagal symptoms in eight. Various reactions were recorded in the remaining three patients. Rapid spontaneous recovery was the rule, suggesting that immediate allergic reaction and, in particular, anaphylactic reaction were unlikely. Investigation allowed the selection of a tolerated anesthetic in all cases. Reexposure occurred in 19 patients 16–50 months after evaluation and 6.8 ± 5.5 years after the first reaction. No patient presented a second reaction. In conclusion, adverse reactions to local anesthetics seem to be, in most cases, not allergic in nature. Evaluation protocols are effective in selecting an agent susceptible to tolerance, but are time consuming. However, they probably contribute to an important reassurance effect that is likely to increase tolerance to subsequent local anesthetic administration. Simplification of the protocols and better patient selection are proposed.     

Description of Heart-Rate Variability Data in Accordance With a Physiological Model for the Genesis of Heartbeats

A survey is presented of techniques which transform heart-rate variability data into a signal that is both visually informative and accessible for analysis. The Instantaneous Heart-Rate (IHR) signal is introduced, i.e. the signal having the value of the heart rate (inverse interbeat interval) during the interval concerned. The IHR signal differs from the standard Delayed Heart-Rate (DHR) signal, which is always one beat late. The relationship is discussed between the different representation methods and the Integral Pulse Frequency Modulation (IPFM) model, the latter being a physiologically plausible model for the transformation of a continuous input signal (e.g., nervous influence on the cardiac pacemaker) into a series of events (heartbeats). It is shown that when the IHR signal is used as input of the IPFM model, the event series from which the signal was derived appears at the output. Hence, if the IPFM model is accepted as a model of the pacemaker, the IHR signal may be considered as an approximation of the neural (sympathetic and parasympathetic) influence on the pacemaker. In addition we show that the appearance of the IHR signal is less affected by trigger errors or extrasystoles than the standard DHR signal. It is concluded that the most attractive time-domain representation of physiological event series consists of the IHR signal, because this signal, being conceptually and computationally simple, is consistent with the IPFM model.     

神经症的研究进展

目的探讨神经症的病因,防御机制,应对方式,心理治疗及药物治疗的研究进展,以便为其研究、预防和治疗工作提供科学依据。方法以最近20年国内外有关神经症研究的成果为基础,采用文献研究法分析总结了近50余篇有关的研究论文的研究成果。结果神经症患者多内向,情绪明显不稳定,神经质影响心理症状最大;他们的父母较正常人的父母对子女缺乏情感温暖,并有过度的拒绝和过度保护,家庭不和睦,其在发病前一年内负性生活事件数目与严重程度均高于对照组(P<0.01);情绪表达受限,生活单调乏味,父母采取不良教养方式,人际关系紧张等。患者存在防御上的不适当,多使用不成熟或中间型防御机制,缺乏良好的应对方式。心理疗法主要有支持心理治疗,森田疗法,认知领悟疗法和精神分析疗法;而药物以三环类药物,苯二氮卓类为主。药物与心理疗法相结合的疗效比单纯应用心理治疗或药物治疗要好。结论神经症的病因主要有人格特征,家庭环境,生活事件,教养方式,人际关系等。采用心理干预与药物治疗相结合的方法是目前比较公认的。