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Influence of Various Compounds with Glyprolines on Acth-4-7 Effects in Pain-Induced Aggressive-Defensive Behavior in Rats 甘脯氨酸类化合物对大鼠疼痛性攻击-防御行为中Acth-4-7作用的影响
Pub Date : 2018-02-10 DOI: 10.4172/2157-2526.1000160
Severyanova La, Plotnikov Dv
We studied the effects of ACTH4-7 (the N-terminal fragment of the corresponding pituitary hormone molecule) on the pain-induced aggressive-defensive behavior in the foot-shock model in rats. The peptide was administered intraperitoneally in the saline at the doses 17, 50, 150 and 450 mcg/kg 12 min before the unavoidable painful stimulation of a pair of rats in an electrified camera. The analgesic and anti-aggressogenic effects of the peptide were found. These effects were significally enhanced after administration of the peptides synthesized by means of binding of the amino acids chain Pro-Gly-Pro to one or both ends of ACTH4-7 molecule. The data obtained increase the possibility of searching and using drugs to correct aggression.
我们研究了ACTH4-7(相应垂体激素分子n端片段)对足休克模型大鼠疼痛性攻击-防御行为的影响。在对一对大鼠进行不可避免的疼痛刺激前12分钟,以17、50、150和450 mcg/kg的剂量在生理盐水中腹腔注射该肽。发现该肽具有镇痛和抗侵袭作用。通过结合氨基酸链Pro-Gly-Pro与ACTH4-7分子的一端或两端合成的肽,这些作用在给药后显着增强。所获得的数据增加了寻找和使用药物来纠正攻击性的可能性。
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引用次数: 0
Emergence of Nipah Virus: Need More R&D and Public Health Infrastructure 尼帕病毒的出现:需要更多的研发和公共卫生基础设施
Pub Date : 2018-01-01 DOI: 10.4172/2157-2526.1000E123
R. Dhaked
An infectious disease outbreak of Nipah virus (NiV) in Kozhikode and Malappuram districts in Kerala (India) has left at least 17 people dead of 18 cases brought the world's attention in May 2018. The most cases of this outbreak are of family members or health workers caring for individuals. NiV is a zoonotic virus whose natural host is the fruit bat (Pteropus bat species) and its outbreak was first reported in 1998-99 when virus moved to pig farmers from pigs in Malaysia and Singapore, infecting 276 and resulting in 106 deaths. Later in 2004 the Philippines NiV outbreak claimed 9 deaths out of 17 reported cases. In India, the NiV infection was first reported in 2001 followed in 2007 claiming 50 lives at the death rate of 70% in both the outbreaks. Annual outbreaks occur in Bangladesh since it was recognized in 2001 through consumption of the contaminated sap of date palm trees by infected bats and there were 199 deaths from 261 cases with case fatality ratio >76% till 2015. A total of six hundred cases have been reported between 1998 and 2015 of NiV infection by WHO in the south and east Asia. There is no specific treatment or vaccine available against NiV infection and only supportive care is offered to affected individuals. The virus has reported from Pteropus bats and other bat species from countries like Indonesia, Philippines, Thailand, Madagascar, Cambodia, and Ghana. While WHO reports the risk of geographical spread of Nipah outbreaks to be low, the wide distribution and extensive migration of fruit bats species raise concerns about the pandemic of NiV with devastating zoonotic potential. Since NiV infection is contagious with a very high mortality rate it is listed as category a biological warfare agents requiring biosafety laboratories of containment level 4 for handling limiting the interest in NiV research. The high end infrastructure requirement further hinders the research and development in the field of diagnosis and therapeutics in the low income affected countries [1-3].
2018年5月,印度喀拉拉邦科日科德和马拉普兰地区爆发了尼帕病毒(NiV)传染病,造成18例病例中至少17人死亡,引起了全世界的关注。这次暴发的大多数病例是家庭成员或照顾个人的卫生工作者。NiV是一种人畜共患病毒,其自然宿主是果蝠(狐蝠属蝙蝠)。1998-99年首次报道了该病毒的爆发,当时病毒从马来西亚和新加坡的猪转移到养猪户,感染276人,导致106人死亡。2004年晚些时候,菲律宾爆发了新冠肺炎疫情,报告的17例病例中有9例死亡。在印度,2001年首次报告了NiV感染,随后在2007年两次暴发中造成50人死亡,死亡率为70%。自2001年通过受感染的蝙蝠食用受污染的椰枣树汁液而被确认以来,孟加拉国每年都会发生疫情,截至2015年,261例病例中有199例死亡,病死率>76%。世卫组织在1998年至2015年期间在南亚和东亚共报告了600例NiV感染病例。没有针对NiV感染的特定治疗方法或疫苗,仅向受影响的个人提供支持性护理。据报道,这种病毒来自印度尼西亚、菲律宾、泰国、马达加斯加、柬埔寨和加纳等国的狐蝠和其他蝙蝠物种。虽然世卫组织报告尼帕病毒疫情在地理上传播的风险较低,但果蝠物种的广泛分布和广泛迁徙令人担忧尼帕病毒大流行具有破坏性人畜共患的潜力。由于NiV感染具有传染性,死亡率非常高,因此被列为a类生物战剂,需要4级控制的生物安全实验室进行处理,限制了对NiV研究的兴趣。高端基础设施需求进一步阻碍了低收入受影响国家在诊断和治疗领域的研发[1-3]。
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引用次数: 0
Rift Valley Fever in Chronic Carrier and Liver Manifestations 裂谷热的慢性携带者和肝脏表现
Pub Date : 2018-01-01 DOI: 10.4172/2157-2526.1000161
K. SamiaAhmed
Background: Rift Valley Fever virus (RVFV) causes certain type of hemorrhagic fever. In Egypt, during September 2017, RVFV was detected in samples from imported cattle (country of origin: the Sudan). Samples were collected from imported cattle from different localities in Cairo during October, November, December 2017.Material and methods: RVFV isolation in Swiss mice (6 days old) was by intra-peritoneal inoculation (I/P) with tissue homogenates, positive results were seen in second passages. Detection of RVFV antigen in samples was done by Agar Gel Precipitation test (AGPT) and the Immunofluorescence Technique (IF). However; reverse transcription real time polymerase chain reaction (RT-PCR) was applied and showed negative results for both samples and positive control Egyptian strain (Menya /Sheep/258) indicating non indicative information (false negative). IF tests were applied on paraffin sections and tissues impressions.Results: The pathological investigations showed chronic infection in the form of necrotic foci (necrogranulomas) and IF test was showing RVFV antigen in hepatocytes, lymphocytes, Kupffer cells (histiocytes of liver), polymorphnuclear cells and in macrophages. RVFV is necrotizing virus that use histiocytes to produce its destructive effects on infected tissues (hepatocytes eating virus), it has its specific and unique pathologic profile inside hepatic tissues. The infected cells produce the virus in large number which leaves cells in groups of millions of viral particles enclosed in certain type of capsule or membrane. The severity of RVFV infections of the liver indicates the virulence status of the virus.Conclusion: The pathologic changes indicate chronic disease. This study proves that RVFV causes chronic diseases and carriers are present in the endemic areas.
背景:裂谷热病毒(RVFV)引起某种类型的出血热。2017年9月,埃及在进口牛的样本中发现裂谷热病毒(原产国:苏丹)。样本于2017年10月、11月和12月从开罗不同地点的进口牛中采集。材料与方法:采用组织匀浆腹腔接种法分离瑞士小鼠(6日龄)的裂谷热病毒,第二次传代均阳性。采用琼脂凝胶沉淀法(AGPT)和免疫荧光法(IF)检测样品中RVFV抗原。然而;反转录实时聚合酶链反应(RT-PCR)结果显示,两份样品和阳性对照埃及菌株(Menya /Sheep/258)均为阴性,提示非指示性信息(假阴性)。对石蜡切片和组织印痕进行IF试验。结果:病理检查显示慢性感染,表现为坏死灶(坏死肉芽肿),肝细胞、淋巴细胞、库普弗细胞(肝组织细胞)、多形核细胞和巨噬细胞中可见RVFV抗原。裂谷热病毒是一种利用组织细胞对被感染组织产生破坏作用的坏死性病毒(肝细胞吞噬病毒),它在肝组织内有其特异性和独特的病理特征。受感染的细胞大量产生病毒,留下数百万病毒颗粒的细胞,这些病毒颗粒被包裹在某种类型的胶囊或膜中。裂谷热病毒感染肝脏的严重程度表明病毒的毒力状况。结论:病理改变为慢性疾病。这项研究证明,裂谷热病毒引起慢性疾病,并且在流行地区存在携带者。
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引用次数: 0
Global Biothreat and Cross-Border Resource Management: Some Findings 全球生物威胁和跨境资源管理:一些研究结果
Pub Date : 2018-01-01 DOI: 10.4172/2157-2526.1000157
Rongxing Guo
As the earth is becoming increasingly fragile, the unilateral mechanisms of solving most, if not all, border-related problems are bound to be ineffective. In the third edition of “Cross-Border Resource Management”, various multidisciplinary methodologies and techniques are presented, with case studies of both traditional and new challenges of cross-border peace, vulnerability and development throughout the world.
随着地球变得越来越脆弱,解决大多数(如果不是全部的话)与边界有关的问题的单边机制注定是无效的。在第三版“跨界资源管理”中,介绍了各种多学科方法和技术,并对世界各地跨界和平、脆弱性和发展的传统挑战和新挑战进行了案例研究。
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引用次数: 0
Effects of Gamma Irradiation on the Molecular and Physical Detection Properties of Bacillus Spores γ辐射对芽孢杆菌孢子分子和物理检测特性的影响
Pub Date : 2018-01-01 DOI: 10.4172/2157-2526.1000158
M. JasonEdmonds, Courtney E. Love, T. Harvey
Gamma irradiation is a technique for inactivation of biological warfare agents (BWAs). Detection of these irradiated agents by sensor technologies may be affected,; altering sensitivity compared to that of non-irradiated organisms. Here for the first time, we aim to determine if spore morphology, or other physical or chemical properties beyond viability and PCR, is altered by the gamma irradiation process. This study analyzed common detection methods to determine the effects the irradiation process has on Bacillus thuringiensis subspecies kurstaki (Btk) spores compared to nonirradiated spores. Liquid concentrations of 108, 106, and 104 CFU ml-1 of Btk spores and one dry powder sample of 109 CFU g-1 were exposed to varying levels of gamma irradiation. Cell viability studies showed complete inactivation for all concentrations at doses of 5.43 kGy and higher. PCR analysis indicated no loss in sensitivity with increasing doses for both wet and dry spore samples. Visual inspection of the spores through scanning electron microscopy showed a change in morphology as the dosage of irradiation increased. With The inability to distinguish whole spores from cell debris occurred in at the 10.86 kGy samples level. Similarly, fluorescence readings remained stable among all but one dose with only the 10.86 kGy sample showing an increase in fluorescence. For PCR based detection methods, no bias towards irradiated versus non-irradiated spore samples exist while optical detection technologies are likely affected by the physical changes to spore morphology and rupturing. Results from this study demonstrate that gamma irradiation of Bacillus spores causes damage to the organism which may make them unrecognizable alter how they to are perceived by detection technologies. When using irradiated analyte to evaluate performance of detection technologies, the results may be impacted by the irradiation process.
伽马辐照是一种使生物战剂失活的技术。传感器技术对这些辐照剂的探测可能受到影响;与未辐照的生物体相比,改变了敏感性。在这里,我们的目的是第一次确定是否孢子形态,或其他物理或化学性质超越生存力和PCR,是由伽马辐照过程改变。本研究分析了常用的检测方法,以确定辐照过程对苏云金芽孢杆菌亚种kurstaki (Btk)孢子的影响,并与未辐照的孢子进行了比较。将液体浓度为108、106和104 CFU ml-1的Btk孢子和一个109 CFU g-1的干粉样品暴露在不同水平的伽马辐射下。细胞活力研究表明,在5.43 kGy或更高的剂量下,所有浓度的细胞都完全失活。PCR分析表明,随着剂量的增加,对湿孢子和干孢子样品的敏感性没有下降。通过扫描电镜目视观察,孢子的形态随照射剂量的增加而变化。在10.86 kGy的样品水平下,不能区分完整孢子和细胞碎片。同样,除了一个剂量外,荧光读数在所有剂量中都保持稳定,只有10.86 kGy的样品显示荧光增加。对于基于PCR的检测方法,不存在辐照和未辐照孢子样品的偏倚,而光学检测技术可能受到孢子形态和破裂的物理变化的影响。本研究的结果表明,伽马辐射对芽孢杆菌孢子造成的损害可能使它们无法识别,从而改变检测技术对它们的感知方式。当使用辐照分析物评价检测技术的性能时,结果可能受到辐照过程的影响。
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引用次数: 1
Biodata Risks and Synthetic Biology: A Critical Juncture 生物数据风险和合成生物学:一个关键的结合点
Pub Date : 2018-01-01 DOI: 10.4172/2157-2526.1000159
Diane DiEuliis, Charles D. Lutes, J. Giordano
The tools of synthetic biology and the life sciences are rapidly advancing, as the ability to apply classical engineering to biological systems creates increasing possibilities for innovations in health and medicine, materials science, energy and agriculture. Intrinsic to these capabilities is the mounting ‘digitization of biology’, as the genetic code and its related metadata (including translated proteins, associated functions, herein referred to as “biodata”) are amassed in order to engineer biology for specific purposes. The full spectrum of risks associated with the compilation and use of a wide range of biodata has not been fully identified or comprehensively understood. Further, divergences in traditional attitudes about security among disciplines, namely, biological sciences, engineering, information technology, and data science, complicate discussions on approaches to risk mitigation. To provide a more unified perspective and clarity, we propose that there are unique risks associated with the digitization of biology, represented by overlapping concerns of biosecurity and privacy. We discuss these in three categories of risk: 1) pathogen risks; 2) manufacturing risks, and 3) risks to individual privacy that can allow human harms. Further, we note that there is insufficient address or treatment of these risks in the formulation of ethics, policy and governance. Mitigation of risks will require characterization of all three spheres of risk, acknowledgement that they may require different solutions, and engagement of divergent disciplines and stakeholders to design solutions.
合成生物学和生命科学的工具正在迅速发展,因为将经典工程应用于生物系统的能力为健康和医学、材料科学、能源和农业领域的创新创造了越来越多的可能性。这些能力的本质是不断增长的“生物学数字化”,因为遗传密码及其相关元数据(包括翻译蛋白质、相关功能,此处称为“生物数据”)被积累起来,以便为特定目的设计生物学。与广泛生物数据的汇编和使用相关的全部风险尚未得到充分确定或全面了解。此外,生物科学、工程、信息技术和数据科学等学科之间对安全的传统态度存在分歧,这使关于降低风险方法的讨论复杂化。为了提供一个更统一的视角和清晰度,我们提出与生物学数字化相关的独特风险,以生物安全和隐私的重叠关注为代表。我们将这些风险分为三类:1)病原体风险;2)制造风险,3)可能造成人身伤害的个人隐私风险。此外,我们注意到,在制定道德、政策和治理方面,对这些风险的处理和处理不足。要减轻风险,就需要确定所有三个风险领域的特征,承认它们可能需要不同的解决办法,并让不同学科和利益攸关方参与设计解决办法。
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引用次数: 9
Insects as Biological Weapons 昆虫作为生物武器
Pub Date : 2018-01-01 DOI: 10.4172/2157-2526.1000156
F. N. Chaudhry, M. F. Malik, M. Hussain, N. Asif
This study was conducted at University of Gujrat during 2017 to 2018 as a term paper for Master of Philosophy. The data regarding use of Insects as Biological Weapons was reviewed and compiled as a review paper from various published articles of international reputed journals annual/environmental reports of recognized organization and e-books. Use of entomological weapons is a wide field of research. Insects were used as biological weapons from ancient times and this concept is very old. Different insects can be used for this purpose by different ways. Insects can be used as biological weapons against crops, animals and human beings. Insects may be used as direct pests against crop or they may be used as vectors to spread diseases in animals and human beings. In both cases their effects are devastating. House Flies, Oriental Rat Flea, Colorado potato beetle, Ticks, screw worm larvae are the examples of some insects which can be used as biological weapons. Use of biological weapons in war against humans is however illegal.
这项研究是在2017年至2018年期间在古吉拉特大学进行的,作为哲学硕士学位的学期论文。对利用昆虫作为生物武器的数据进行了审查,并从国际知名期刊的各种已发表文章和公认组织的年度/环境报告和电子书中汇编为一篇综述论文。昆虫武器的使用是一个广泛的研究领域。昆虫从古代就被用作生物武器,这个概念非常古老。不同的昆虫可以通过不同的方式来达到这个目的。昆虫可以作为对付农作物、动物和人类的生物武器。昆虫可以作为农作物的直接害虫,也可以作为在动物和人类中传播疾病的媒介。在这两种情况下,它们的影响都是毁灭性的。家蝇、东方鼠蚤、科罗拉多马铃薯甲虫、扁虱、螺虫幼虫是一些可以作为生物武器的昆虫的例子。然而,在战争中使用生物武器是非法的。
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引用次数: 1
Changes in U.S. Biosecurity Following the 2001 Anthrax Attacks 2001年炭疽袭击后美国生物安全的变化
Pub Date : 2018-01-01 DOI: 10.4172/2157-2526.1000163
Aidan D McCarty
On September 18, 2001, anonymous letters laced with anthrax spores were dropped in a mailbox in Trenton, New Jersey, en route to multiple national news organizations. A second mailing in early October had refined the spores into an easily-inhalable powder and targeted two U.S. senators [1]. The most recent bioterror attack in U.S. history had begun, and spurred a national frenzy in the wake of 9/11 [2,3]. In all, just 17 people were hospitalized and only 5 died, [4] but the event instigated an order-of-magnitude increase in biodefense spending and transformed the entire biodefense landscape over the following 15 years. [5,6]. The 2001 anthrax attacks inspired a rapid scaling in American biodefense through the Bio Watch program, stockpiling of smallpox vaccine, Project Bio Shield, and massive increases in bio agents research; however, increased spending and scale have failed to yield sufficient protection [7].
2001年9月18日,一些带有炭疽孢子的匿匿信被投进了新泽西州特伦顿的一个邮箱,这些匿匿信在送往多家全国性新闻机构的途中。10月初的第二次邮寄将孢子提炼成易于吸入的粉末,目标是两名美国参议员[1]。美国历史上最近的一次生物恐怖袭击已经开始,并在9/11之后引发了全国的狂热[2,3]。总共只有17人住院,只有5人死亡,[4]但这一事件引发了生物防御支出的数量级增长,并在接下来的15年里改变了整个生物防御格局。(5、6)。2001年的炭疽袭击促使美国通过生物观察计划、天花疫苗储备、生物盾牌计划和大规模增加生物制剂研究,迅速扩大了生物防御规模;然而,增加的支出和规模并没有产生足够的保护[7]。
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引用次数: 4
Features of Bioterrorism Information System 生物恐怖主义信息系统的特点
Pub Date : 2018-01-01 DOI: 10.4172/2157-2526.1000162
H. Moghaddasi, L. ShikrizadehArani, A. Zarghi
Background and objectives: Bioterrorism Information System has been widely used under different titles for real-time detection, control and evaluation of bioterrorism attacks in various countries. Appling such system, based on various characteristics, leads to reduction of epidemiological effects and reduction of its etiologic factors in the community whose benefits are real-time health response and increasing national security. The effects of such a system depend on its features. This study aims to investigate the features of Bioterrorism Information System. Method: To accomplish this review study, 150 articles including the key words of Sentinel Surveillance, Biosurveillance, Disease Outbreaks, Bioterrorism and Information Systems were originally derived from the ProQuest, PubMed, Web of Science, Scopus and Google Scholar databases. 150 articles dated 1980-2017 were found of which 79 were analytically identified as the main ones according to the content. Results: Based on this study, the features of Bioterrorism Information System were classified into five main categories: collection, processing, distribution of data, legal requirements, and Security requirements. Conclusion: Identifying the features of the Bioterrorism Information System is an important step in its designing. If the Bioterrorism Information System is properly designed and its features are considered in terms of collection, processing, distribution, security and legal requirements, it will more effectively detect bioterrorism attacks.
背景与目的:生物恐怖主义信息系统在不同国家被广泛应用于生物恐怖袭击的实时检测、控制和评估。根据不同特点,应用该系统可以减少社区流行病学影响,减少其病因,其好处是实时卫生响应和增加国家安全。这样一个系统的效果取决于它的特点。本研究旨在探讨生物恐怖信息系统的特点。方法:为完成本综述研究,从ProQuest、PubMed、Web of Science、Scopus和谷歌Scholar等数据库中检索关键词为Sentinel Surveillance、Biosurveillance、Disease outbreak、Bioterrorism和Information Systems的文献150篇。从1980年至2017年的150篇文章中,根据内容分析确定了79篇为主要文章。结果:在本研究的基础上,将生物恐怖主义信息系统的特征分为五大类:数据的收集、处理、分发、法律要求和安全要求。结论:识别生物恐怖信息系统的特征是设计生物恐怖信息系统的重要步骤。如果生物恐怖主义信息系统设计得当,并在收集、处理、分发、安全和法律要求等方面考虑其特点,将更有效地发现生物恐怖主义袭击。
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引用次数: 3
Immunogenicity and protective efficiency in mice of a smallpox DNA vaccine candidate 一种天花DNA候选疫苗在小鼠中的免疫原性和保护效果
Pub Date : 2017-06-07 DOI: 10.4172/2157-2526.1000155
N. Kim, D. Chang, G. Hur, T. Lee, Jai-Myung Yang, Sungho Shin
The adverse reactions of the current live smallpox vaccine, and potential use of smallpox as a bioterrorism weapon, have highlighted the need to develop a new effective vaccine for this infectious disease. In the present study, a DNA vaccine vector was produced, which was optimized for expression of the vaccinia virus L1 antigen in a mouse model. Plasmid-encoded IgM-tL1R, which contains a truncated L1R gene fused to an IgM signal sequence, was constructed and expressed under the regulation of an SV40 enhancer. The expressed recombinant tL1 proteins were successfully secreted into the culture media. The DNA vaccine was administered to mice by electroporation, and animals were subsequently challenged with the lethal dose of vaccinia virus. We observed that immunization with IgM-tL1R induced robust neutralizing antibody responses and provided complete protection against a vaccinia virus infection. Isotyping studies revealed a lower IgG1/IgG2a ratio following vaccination with IgM-tL1R, suggesting the stimulation of Th1 immune responses. Our results propose that an optimized DNA vaccine, IgM-tL1R, can be effective in eliciting an anti-vaccinia virus immune response and provide protection against lethal orthopoxvirus challenge.
目前天花活疫苗的不良反应,以及天花作为生物恐怖主义武器的潜在用途,突出表明需要为这种传染病开发一种新的有效疫苗。本研究制备了一种DNA疫苗载体,并对其进行了优化,使其能够在小鼠模型中表达牛痘病毒L1抗原。质粒编码的IgM- tl1r包含一个截断的与IgM信号序列融合的L1R基因,在SV40增强子的调控下构建并表达。成功地将表达的重组tL1蛋白分泌到培养基中。DNA疫苗通过电穿孔注射给小鼠,随后用致死剂量的牛痘病毒攻击动物。我们观察到IgM-tL1R免疫诱导了强大的中和抗体反应,并对牛痘病毒感染提供了完全的保护。同型研究显示,接种IgM-tL1R后,IgG1/IgG2a比例降低,提示刺激了Th1免疫应答。我们的研究结果表明,优化的DNA疫苗IgM-tL1R可以有效地引发抗牛痘病毒免疫反应,并提供对致命的正痘病毒攻击的保护。
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引用次数: 2
期刊
Journal of Bioterrorism and Biodefense
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