差异蛋白质组学研究与应用进展

差异蛋白质组学是蛋白质组学的一种重要研究策略,着重于比较不同生物体在不同时刻或状态下蛋白质表达的变化,在目前技术背景下有重要的现实意义。将近年来新发展的差异蛋白组学技术,如激光捕获微切割、蛋白芯片及蛋白质定量研究方面等的技术和差异蛋白组学应用进展进行总结。     

差异蛋白质组学研究与应用进展

差异蛋白质组学是蛋白质组学的一种重要研究策略,着重于比较不同生物体在不同时刻或状态下蛋白质表达的变化,在目前技术背景下有重要的现实意义.将近年来新发展的差异蛋白组学技术,如激光捕获微切割、蛋白芯片及蛋白质定量研究方面等的技术和差异蛋白组学应用进展进行总结.     

血清差异蛋白质组学在肝癌研究中的进展

随着蛋白质纽学相关技术的迅速发展,差异蛋白质组学已成为当今细胞生物学领域中极其活跃的学科。差异蛋白质组学是蛋白质组学的一个分支,研究不同时期、不同条件下蛋白质的表达。差异蛋白质组学的核心技术包括双相电泳、质谱分析。现综述血清差异蛋白质组学在肝细胞癌中的研究进展。     

动物模型蛋白质组学技术在高血压疾病的研究进展

蛋白质组学是研究细胞内全部蛋白质的组成及其活动规律的科学,蛋白质组学研究不但能揭示病因不明疾病的发生和发展机制,并为提供新的诊断技术、治疗方法和药物靶点等有积极的作用。因高血压的病因还不十分清楚,人们希望用分子生物学揭示其神秘的面纱,因此蛋白质组学与高血压的研究,成为高血压模型动物及其临床领域研究的热点,本文对动物模型蛋白质组学技术在高血压疾病的研究进展情况进行综述。     

后基因时代神经源性疼痛研究的焦点：蛋白质网络

后基因时代到来后蛋白质组学技术得到了迅猛发展,系统化和网络化研究神经源性疼痛模型中,神经系统蛋白质结构和功能必将是未来疼痛相关研究的重要组成部分。蛋白质组学方法的广泛应用,将为我们提供一个用于判断疼痛的新工具,更有利于疼痛机理的揭示。     

后基因时代神经源性疼痛研究的焦点:蛋白质网络

后基因时代到来后蛋白质组学技术得到了迅猛发展,系统化和网络化研究神经源性疼痛模型中,神经系统蛋白质结构和功能必将是未来疼痛相关研究的重要组成部分.蛋白质组学方法的广泛应用,将为我们提供一个用于判断疼痛的新工具,更有利于疼痛机理的揭示.     

血清差异蛋白质组学在肝癌研究中的进展

随着蛋白质组学相关技术的迅速发展,差异蛋白质组学已成为当今细胞生物学领域中极其活跃的学科.差异蛋白质组学是蛋白质组学的一个分支,研究不同时期、不同条件下蛋白质的表达.差异蛋白质组学的核心技术包括双相电泳、质谱分析.现综述血清差异蛋白质组学在肝细胞癌中的研究进展.     

兼职蛋白质及其哲学思考

在蛋白质组学天空中,新近提出的兼职蛋白质概念正越来越受到人们的关注。研究发现,某些蛋白质因其细胞定位、细胞类型、寡聚状态的不同及其配体、底物、辅因子和产物在细胞内浓度的变化而表现出不同的功能,从而对细胞和机体产生诸多有益作用,并使其发展出一系列完善机制以实现不同功能间的转换。兼职蛋白质概念的提出不仅改变了一个基因－－一种蛋白质－－一种功能的传统观念,也为大分子间相互作用、细胞复杂性及生物多样性研究     

表面等离子共振技术在蛋白质组学中的应用

被誉为“生命登月计划”的人类基因组计划于2 0 0 1年 2月迎来了它的一个重要里程碑———人类基因组工作框架图完成[1] !它公布了覆盖人类基因组 97%的基因序列 ,并提示仅有 3- 4万个基因编码蛋白质。面对这些浩如烟海的碱基序列 ,如何破译全部遗传信息、解码生命的奥秘成为“后基因组时代”的重要任务。结构基因组学正向功能基因组学、蛋白质组学过渡 ,研究重点变为从整体水平上探讨基因组动态的生物学功能 ,研究蛋白质结构与功能的关系及蛋白质间的相互作用 ,解释人类生命现象何以如此复杂多变。1　 2 1世纪的生命科学是蛋白质组学的时代…     

蛋白质化学与分子生物学携手前进

蛋白质化学的发展历经了几次重大的转变,分析仪器的商品化使蛋白质从实验室走向市场;一级结构信息促进了多肽的合成与改造;分子生物学技术的成熟使人们从设计改造功能蛋白转向设计基因,并尝试进行基因治疗和ＤＮＡ免疫。这些转变,使蛋白质化学技术与分子生物学技术成为人们手中的工具,为人们研究生命拓宽了思路。     

A comparison of adaptive psychometric procedures based on the theory of optimal experiments and bayesian techniques: implications for cochlear implant testing

Numerous previous studies have focused on the development of quick and efficient adaptive psychometric procedures. In psychophysics, there is often a model of the psychometric function supported by previous studies for the task of interest. The theory of optimal experiments provides a framework for utilizing a model of the process to develop quick and efficient sequential-testing strategies for estimating model parameters, making it appropriate for developing adaptive psychophysical-testing methods. In this study, we investigated the application of sequential parameter search strategies based on the theory of optimal experiments and Bayesian adaptive procedures for measuring psychophysical variables. The results presented in this article suggest that more sophisticated psychometric procedures can expedite the measurement of psychophysical variables. Such techniques for quickly collecting psychophysical data may be particularly useful in cochlear implant research, where a large set of psychophysical variables are useful for characterizing the performance of an implanted device. It is to be hoped that further development of these techniques will make psychophysical measurements available to clinicians for tuning and optimizing the speech processors of individual cochlear implant patients.     

Treatment of Depression in Disadvantaged Women

Low-income minority women are underrepresented in mental health service settings, yet they are clearly at risk for psychiatric disorders. We staff a clinic specialized in the treatment of depression in economically disadvantaged medical patients. We will share our experience treating disadvantaged and ethnic minority women and will discuss the ingredients necessary to provide quality therapy for these women. We will begin by discussing how poor and minority women access treatment, and the strategies we have used to keep these women in treatment. Then we will consider how services can be made sensitive to the special needs of disadvantaged women, including particular techniques we have found useful in their treatment. Finally, we will discuss common therapeutic issues for these women, as well as successful strategies for helping with the common issues.     

Autoimmun-Enzephalitiden – eine Erkrankungsgruppe mit vielen Gesichtern

During the last 10 years a number of syndromes with antibodies against neuronal surface antigens have been characterized. Adults as well as children can be affected. Patients may suffer from amnestic syndrome, other cognitive deficits, seizures, or psychiatric symptoms. Some patients develop generalized encephalopathy with altered levels of consciousness, hyperkinesias, and hypothalamic disorders. In some patients, ovarial teratoma, thymoma, or small cell lung cancer can be diagnosed. However, in most patients no tumor is found. These syndromes were previously called autoimmune channelopathies. In fact, most antigens are not part of an ion channel but proteins or part of protein complexes on the cell surface of neurons, axons, dendrites, or synaptic terminals. These proteins are expressed throughout the nervous system. Interestingly, in limbic encephalitis very circumscribed brain regions are affected. This may be due to an increased vulnerability or accessibility of the affected brain regions. Limbic encephalitis is a well-characterized form of autoimmune encephalitis, which can be associated with different antibodies. Anti-NMDA-receptor encephalitis is not restricted to the limbic system. Characterization of other syndromes and auto-antibodies are expected in the future. In this review, aspects of limbic encephalitis and anti-NMDA-receptor encephalitis will be discussed.     

Treating disturbed emotional regulation in sexual offenders: The potential applications of mindful self-regulation and controlled breathing techniques

It has been noted that some offenders are characterized by problems in the appropriate regulation of emotional states. Deficits in emotional regulation are particularly pertinent in sexual offenders. Therefore, therapeutic programs should, in part, focus on the development of effective strategies for the control of emotional arousal. In this review, we will provide an outline of how anatomical structures including the amygdala and regions of the prefrontal cortex (PFC) are involved in the appropriate regulation of emotion. It is argued in this paper that the effective control of emotional states may be helped through the adoption of a group of meditational practices, known as mindfulness techniques, which have emerged from Buddhist philosophy. These techniques involve slow, deep breathing and have been shown to affect vagal modulation of the heart and the functioning of specific neural circuits which are critically involved in emotional regulation.     

Proposed Strategies for Teaching Ethics of Nanotechnology

Nanotechnology and nanosciences have recently gained tremendous attention and funding, from multiple entities and directions. In the last 10 years the funding for nanotechnology research has increased by orders of magnitude. An important part that has also gained parallel attention is the societal and ethical impact of nanotechnology and the possible consequences of its products and processes on human life and welfare. Multiple thinkers and philosophers wrote about both negative and positive effects of nanotechnology on humans and societies. The literature has a considerable amount of views about nanotechnology that range from calling for the abandonment and blockage of all efforts in that direction to complete support and encouragement in hopes that nanotechnology will be the next big jump in ameliorating human life and welfare. However, amidst all this hype about the ethics of nanotechnology, relatively less efforts and resources can be found in the literature to help engineering professionals and educators, and to provide practical methods and techniques for teaching ethics of nanotechnology and relating the technical side of it to the societal and human aspect. The purpose of this paper is to introduce strategies and ideas for teaching ethics of nanotechnology in engineering in relation to engineering codes of ethics. The paper is neither a new philosophical view about ethics of nanotechnology nor a discussion of the ethical dimensions of nanotechnology. This is an attempt to help educators and professionals by answering the question of how to incorporate ethics of nanotechnology in the educational process and practice of engineering and what is critical for the students and professionals to know in that regard. The contents of the presented strategies and ideas focus on the practical aspects of ethical issues related to nanotechnology and its societal impact. It also builds a relation between these issues and engineering codes of ethics. The pedagogical components of the strategies are based on best-practices to produce independent life-long self-learners and critical thinkers. These strategies and ideas can be incorporated as a whole or in part, in the engineering curriculum, to raise awareness of the ethical issues related to nanotechnology, improve the level of professionalism among engineering graduates, and apply ABET criteria. It can also be used in the way of professional development and continuing education courses to benefit professional engineers. Educators and institutions are welcome to use these strategies, a modified version, or even a further developed version of it, that suits their needs and circumstances.     

Comparative research methodology: Cross-cultural studies

Cross-cultural research can make contributions to theory development by identifying groups of people who seem not to behave according to established theories and by increasing the range of independent variables available for study in any one culture. A major methodological orientation to such studies, developed over the last 10 years, is the emic-etic distinction. An emic analysis documents valid principles that describe behavior in any one culture, taking into account what the people themselves value as meaningful and important. The goal of an etic analysis is to make generalizations across cultures that take into account all human behavior. Examples of these approaches are given from studies on ingroup-outgroup relations in Greece and the United States; and studies on the need for achievement and its relation to the need for affiliation. A specific method to document emic and etic principles is presented which involves the development of core items to measure concerns in all cultures under study, and culture-specific items which are designed to measure concerns in one culture that may not be appropriate for all cultures under study. The techniques of back-translation and decentering are related to the emic-etic approach, as are the techniques developed by Triandis which involve the development of research instruments within each culture and the use of factor analysis. The most general approach, applicable to all comparative studies, is the plausible rival hypothesis analysis which forces the research to examine each and every potential explanation for any data set. The suggestion is made that the future of cross-cultural research will depend on its contribution to theory in general psychology, and methods (such as those presented here) will only be a means to the major goal of discovering important, central facts about human behavior.