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International journal of molecular biology (Edmond, Okla.)最新文献

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Retrospective analysis: the research on Mycobacteria in Basilicata from 1977 to 2012 回顾性分析1977 ~ 2012年巴西利卡塔地区分枝杆菌的研究
Pub Date : 2018-10-02 DOI: 10.15406/ijmboa.2018.03.00079
L. Buono, C. Colonna, G. Montesano
The mycobacterial laboratory was devoted to the search of the Koch bacillus in the pathological materials through the microscopical examination, the examination of the culture, identification and antibiogram. The scientific progress and technical innovation have remarkably improved the mycobacterial diagnostic possibilities and consequently rapid tests of high sensibility and specificity have been developed such as the gene amplification tests used directly on the clinical samples and gene probes for the identification of non-tuberculosis mycobacteria (NTMs) which have substituted the biochemical tests of uncertain identification.
分枝杆菌实验室致力于通过显微镜检查、培养检查、鉴定和抗生素谱检查在病理材料中寻找科赫杆菌。科学进步和技术创新极大地提高了分枝杆菌的诊断可能性,因此开发了高灵敏度和特异性的快速检测方法,如直接用于临床样品的基因扩增试验和用于非结核分枝杆菌鉴定的基因探针,取代了鉴定不确定的生化试验。
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引用次数: 0
The emergence of specific HDAC inhibitors and their clinical efficacy in the treatment of hematologic malignancies and breast cancer 特异性HDAC抑制剂的出现及其在血液恶性肿瘤和乳腺癌治疗中的临床疗效
Pub Date : 2018-09-26 DOI: 10.15406/ijmboa.2018.03.00078
David A Pride, Alyssa R Summers
Epigenetic modification of gene expression through inhibition of histone deacetylases (HDAC) represents a promising potential clinical strategy for a variety of conditions, including cancer, autoimmunity and transplantation, polyglutamine disorders, neurological diseases, and heart disease. 1–4 Numerous histone deacetylase inhibitors (HDI) have been developed, showing varying degrees of specificity across classes or isotypes of HDACs. Early experience demonstrated the efficacy of less specific, “pan/global” HDIs (e.g. vorinostat, panbinostat, and abexinostat) in the treatment of specific hematological malignancies, but was tempered by significant toxicity exhibited by the inhibitor class. As the preclinical and clinical evaluation of this strategy has progressed, the field has shifted toward a focus on the development and investigation of more specific HDIs;5 hoping to limit toxicity and unintended non-target effects of HDI. Herein, we seek to review the trend in clinical research toward the development of class and isoformspecific HDIs, highlighting their clinical efficacies and limitations in the treatment of hematologic and breast cancers in order to underscore their potential to allow for the improvement of clinical outcomes with less toxicity and unintended non-target effects.
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引用次数: 3
Hematology and external egg quality parameters of three Nigerian indigenous chicken genotypes 3种尼日利亚地方鸡基因型的血液学和外部蛋品质参数
Pub Date : 2018-08-07 DOI: 10.15406/IJMBOA.2018.03.00077
Adeyemo Go, Bo-Cheng Mo, Samuel Ehiabhi Okhale
Information about haematological parameters and external egg quality parameters of Nigerian indigenous chickens is limited and not even available to farmers. In many species of birds especially chicken, normal values for hematological parameters were measured and a comprehensive data base was established of their blood profile. The Nigerian indigenous chicken breeds have been reported to have many advantageous gene complexes that could be harnessed in the development of meat or egg type chicken suitable for use in the tropics.1 Among these major genes are the Naked necked, Frizzled and Normal feathered. In the other hand, many researchers have evaluated normal haematological parameters of industrial and commercial hybrid chickens.2,3 Information about hematological and external egg quality parameters of indigenous chickens are limited therefore, this study was carried out to evaluate the haematological and external egg quality parameters of three strains of indigenous chickens.
关于尼日利亚本地鸡的血液学参数和外部鸡蛋质量参数的信息有限,甚至农民也无法获得。对许多种鸟,特别是鸡,测量了血液学参数的正常值,并建立了一个全面的血液资料数据库。据报道,尼日利亚本土鸡品种具有许多有利的基因复合物,可用于开发适合热带地区使用的肉鸡或蛋鸡在这些主要基因中有裸颈型、卷曲型和正常羽型。另一方面,许多研究人员对工业和商业杂交鸡的正常血液学参数进行了评估。2,3由于对地方鸡血液学和鸡蛋外部品质参数的了解有限,本研究对3个地方鸡品系的血液学和鸡蛋外部品质参数进行了评价。
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引用次数: 1
Altered protein product of PGAP2 gene disrupts cognitive pathway PGAP2基因蛋白产物的改变破坏认知通路
Pub Date : 2018-07-30 DOI: 10.15406/ijmboa.2018.03.00076
Shoaib Ur Rehman, Rahmat Ali Khan
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引用次数: 1
Effect of Peristrophe bicalyculata powder on diabetic and lipid parameters in the stomach of albino rats 双曲藤散对白化大鼠糖尿病及胃脂质参数的影响
Pub Date : 2018-07-26 DOI: 10.15406/ijmboa.2018.03.00075
Sheneni Victor Duniya, Shaibu Isaac Eleojo, Jegede Rapheal Eneji, O. Ameh, Abaniwo Rose Mafo, Mamudu Ojonugwa Collins
Peristrophe bicalyculata is a herbaceous plants which belongs to the family Acanthaceae. The Hausas call it tubanin dawaki in Nigeria, which means horse flour. In Senegal the serer and Wolof language call it buben and moto.1 It is called chotiharjori2 by the Indore zone of the Indians. Naturally it is found in the warm tropical areas of Africa, in the sahel area of Mauritania, northern part of Nigeria and also in Thailand, India and Burma. The plant is used locally in the treatment of diabetes in the south western part of Nigeria. The plant is a stimulant, stomachic and a diuretic. Chewing the plant leaves suppresses the sweet and bitter in it. The consumers of this usually expects a reducing effect on weight and betterment of diabetes due to its ability to reduce taste of sweet and prevent the absorption of glucose by the cells. Diabetes mellitus is a metabolic disorder characterized by elevated blood sugar level, abnormalities in lipoprotein metabolism and intermediary embolism of major food substances.3 Rare cases of hepatic inflammation induced by anthraquinone have been documented,4 and are dose depended. Anthrax quinines are metabolised in the small intestines, forming hepatic toxic substances that some people are sensitive to. This substances result to reversible liver abnormality. Gastrointestinal disorder is one of the prevailing reasons why people seek medical advice. About approximately 15– 30% of full grown adults suffer from this condition. The discovery of functional drugs is one of the major areas of phototherapeutic treatment today. From the day immemorial, bitter herbal drugs from neem or vernonia amyygdalina has been implicated in the treatment of patients with dyspeptic complaint. The mechanism of action of how this bitter herb elicits their biological function is not fully understood. But it is believed stimulate the stomach secretion, digestive glands and strengthens gastrointestinal tract thus stimulating the CNS, leading to notification. Bitters, especially at a very high dose affect positively the mucous membrane lining of the stomach and bowel. They are usually combined with essential oil, which are known for their spasmolytic, aesthetic and carminative effect.5 This study shows the effect of various concentrations of Peristrophe bicalyculata in albino rats. Methodology
双生藤是棘科的一种草本植物。豪萨人在尼日利亚称之为tubanin dawaki,意思是马面粉。在塞内加尔,serer语和Wolof语称其为buen和moto印多尔地区的印第安人把它叫做chotiharjori2。它自然生长在非洲温暖的热带地区、毛里塔尼亚的萨赫勒地区、尼日利亚北部以及泰国、印度和缅甸。在尼日利亚西南部,这种植物被当地用于治疗糖尿病。这种植物有兴奋剂、胃药和利尿剂的作用。咀嚼植物的叶子抑制了其中的甜味和苦味。消费者通常期望它能减轻体重,改善糖尿病,因为它能减少甜味,防止细胞吸收葡萄糖。糖尿病是一种以血糖水平升高、脂蛋白代谢异常、主要食物物质中间栓塞为特征的代谢性疾病蒽醌引起肝脏炎症的罕见病例已有文献记载,4且有剂量依赖性。炭疽奎宁在小肠中代谢,形成一些人敏感的肝毒性物质。这些物质会导致可逆性肝脏异常。胃肠疾病是人们寻求医疗建议的主要原因之一。大约15 - 30%的成年人患有这种疾病。功能药物的发现是当今光疗治疗的主要领域之一。从远古时代起,苦楝或苦楝的草药就被用于治疗消化不良的病人。这种苦味草药如何激发其生物学功能的作用机制尚不完全清楚。但据信,它能刺激胃分泌、消化腺体,加强胃肠道,从而刺激中枢神经系统,导致通知。苦味,特别是在非常高的剂量下,对胃和肠的粘膜有积极的影响。它们通常与精油结合使用,以其解痉、美容和驱风作用而闻名本研究显示了不同浓度双孢霉对白化大鼠的影响。方法
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引用次数: 3
Metabolic regulation in innate immunity 先天免疫中的代谢调节
Pub Date : 2018-07-23 DOI: 10.15406/ijmboa.2018.03.00074
Samin Ayromlou, L. Hatamnezhad, H. Ayromlou, S. Siamak, oghchian Shotorbani
Abbreviations: CNS, central nervous system; G6P, glucose 6-phosphate; GluT, glucose transferase; ATP, Adenosine three phosphate; NADPH, nicotinamide adenine dinucleotide phosphate; MAPKS, mitogen activated protein kinases; ROS/RNS, reactive oxygen/reactive nitrogen species; G6PD, glucose-6-phosphate dehydrogenase; NF-κB, nuclear factor-κB nox: NADPH Oxidase 2; MIF, migration inhibitory factor; PKC, protein kinase C; TLR, tolllike receptors; PRRS, pattern recognition receptor; Myd88, myeloid differentiation primary response gene 88; TIR, toll/Interleukin-1 receptor; IRAK4, IL-1 receptor-associated kinase 4; TRAF6, TNF receptor associated factor; AP-1, activator protein 1 IKK: IκB kinase; JNK, c-Jun N-terminal kinases; TCR, T-cell receptor; TNF-α, tumor necrosis factor-α; Il-6, Interleukin-6; LIF, leukemia inhibitory factor; Il-1ß, Interleukin-1ß Il-1; Acp, The IL-1 accessory protein; Gp130, Glycoprotein 130; JAK, Janus kinase; STAT, signal transducer and activator of transcription; CRP, C-reactive protein.
缩写:CNS,中枢神经系统;G6P,葡萄糖6-磷酸;GluT,葡萄糖转移酶;ATP,三磷酸腺苷;NADPH,烟酰胺腺嘌呤二核苷酸磷酸;MAPKS,丝裂原活化蛋白激酶;ROS/RNS、活性氧/活性氮;G6PD,葡萄糖-6-磷酸脱氢酶;NF-κB,核因子-κB nox: NADPH氧化酶2;MIF:迁移抑制因子;PKC,蛋白激酶C;TLR, toll样受体;PRRS,模式识别受体;Myd88,髓细胞分化初效基因88;toll/Interleukin-1受体;IRAK4, IL-1受体相关激酶4;TNF受体相关因子TRAF6;AP-1,激活蛋白1 IKK: κ b激酶;JNK, c-Jun n端激酶;t细胞受体;TNF-α,肿瘤坏死因子-α;il - 6,白细胞介素- 6;白血病抑制因子;Il-1ß,白细胞介素-1ß Il-1;Acp, IL-1辅助蛋白;Gp130,糖蛋白130;Janus激酶;STAT,信号转换器和转录激活器;c反应蛋白。
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引用次数: 2
Enzyme kinetics of RNase present in testes 睾丸中RNase的酶动力学
Pub Date : 2018-07-16 DOI: 10.15406/ijmboa.2018.03.00073
Eswari Beeram, Divya Bysani, C. Pallavi, K. Thyagaraju
Enzyme kinetics is one of the important parameter to be studied to know the inhibition studies of RNase A. RNase A is an allosteric enzyme which consists of an allosteric site in addition to the active site of the enzyme. With respect to allosteric enzymes two types of modulators namely positive and negative regulates the enzyme. Positive allosteric modulators increase the cooperitivity to other sites in positive manner for a multi subunit protein. So, K0.5 is usually decreased and Vmax found to be increased.1 Where as negative modulators decrease the affinity of substrate binding at one subunit of enzyme compared to other subunits of it. So, K0.5 found to be increased and Vmax decreases.1 O2 binding to the Hb is an example of positive cooperivity and feedback inhibition by allosteric enzyme is an example of negative cooperitivity. UV visible spectroscopic analysis in vitro proved RNase A is an allosteric enzyme and agarose gel electrophoresis analysis2 has proved that metosartan is an inhibitor of RNase A. Various plots of enzyme like Michaelis–Menton plot, Line weaverburk plot, Dixon plot and Eadiehofstee plot are used to know the K0.5 and Vmax of the enzyme in the presence and absence of drug. As RNase A is an allosteric enzyme it doesn’t follows Michaelsmenton kinetics as it consists of more than one active site. Allosteric enzymes give profound sigmoid curve with negative modulator and hyperbolic curve with positive modulator. Line weaver – Burk plot is not useful in case of allosteric enzymes to know whether the inhibition pattern is allosteric or not. Dixon plots are used to know the potency of inhibitor over the enzyme and Eadie – Hofstee plot is useful to know the Km/Vmax and Km. But it is difficult to know the Km and Vmax of the enzymes by EadieHofstee plot. Enzyme kinetics for each concentration is plotted and its effect of drug on enzyme was studied. The term Km is not used for allosteric enzymes instead K0.5 is used as the enzyme doesn’t follows Michaels menton kinetics. Properties of allosteric enzymes are as follows. Higher substrate concentration favours R state of the enzyme where as lower concentration favours T state where as other molecules like O2 and 2,3-Bis phosphor glycerate are regulators of allosteric enzymes.
酶动力学是了解RNase A抑制研究的重要参数之一。RNase A是一种变构酶,除了酶的活性位点外,还由一个变构位点组成。对于变构酶有两种类型的调节剂,即正调节剂和负调节剂。正变构调节剂增加了多亚基蛋白与其他位点的正向合作。因此,通常K0.5减小,Vmax增大负调剂降低了酶的一个亚基与其他亚基结合的亲和力。因此,K0.5增大,Vmax减小O2与Hb的结合是正协同性的一个例子,而变构酶的反馈抑制是负协同性的一个例子。体外UV可见光谱分析证实RNase A是一种变质酶,琼脂糖凝胶电泳分析2证实美托沙坦是RNase A的抑制剂。我们利用Michaelis-Menton图、Line weaverburk图、Dixon图、Eadiehofstee图等多种酶图来了解该酶在有药和无药情况下的K0.5和Vmax。由于RNase A是一种变构酶,它不遵循迈克尔门顿动力学,因为它由多个活性位点组成。变构酶在负调节剂作用下呈现出深刻的s型曲线,在正调节剂作用下呈现出双曲曲线。对于变构酶的抑制模式是否为变构的情况,线编织-伯克图是无用的。Dixon图用于了解抑制剂对酶的效价,Eadie - Hofstee图用于了解Km/Vmax和Km。但利用EadieHofstee图很难确定酶的Km和Vmax。绘制了各浓度的酶动力学图,并研究了药物对酶的影响。术语Km不用于变构酶,而使用K0.5,因为酶不遵循迈克尔门顿动力学。变构酶的性质如下。较高的底物浓度有利于酶的R态,较低的浓度有利于T态,而O2和2,3-二磷酸甘油酸等其他分子是变构酶的调节剂。
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引用次数: 1
Invasive alien plant species in Ethiopia: ecological impacts on biodiversity a review paper 埃塞俄比亚外来入侵植物物种对生物多样性的生态影响综述
Pub Date : 2018-07-12 DOI: 10.15406/IJMBOA.2018.03.00072
Wakshum Shiferaw, S. Demissew, T. Bekele
Ethiopia has great geographic diversity, and macro and micro -climatic variability. However, there are threats its biodiversity by habitat conversion, invasive species, unsustainable utilization of biodiversity resources, replacement of local varieties and breeds, climate change and pollution, demographic change, poverty, and lack of awareness and coordination.1 Invasive species are either indigenous or non indigenous species that can heavily colonize a particular habitat.2 Alien species are non-native or exotic organisms that occur outside their adaptive ranges and dispersal ranges.3,4 IAS are all categories of living organisms (plants, mammals and insects) which comprise the most common types in terrestrial environments.4 They are also widely distributed in all kinds of ecosystems throughout the world. IAS have the ability to establish themselves, invade, outcompete natives and take over the new environment.3,5 They are now affecting every ecosystem types on the planet and they are the second greatest global threat to biodiversity after habitat destruction.4,6 They are pausing threats to ecosystems of the earth, and the services that they provide to humanity are under risk.5 IAS have induce impacts on native species directly competing for resource such as: food and breeding sites indirectly by altering habitat and modify hydrology, nutrient cycling and other ecosystem processes. Their impacts are on native biodiversity in ecosystems like agricultural and range lands, national parks, water ways, lakes, rivers, power dams, road sides and urban green spaces with huge economical as well as social consequences. These dramatically change the ecosystem both positively and negatively. Across impact types, the positive impacts reported by most authors were found to be largely outweighed by negative impacts.7–9
埃塞俄比亚具有巨大的地理多样性,宏观和微观气候多变性。然而,其生物多样性受到生境转换、物种入侵、生物多样性资源的不可持续利用、本地品种和品种的替代、气候变化和污染、人口变化、贫困以及缺乏意识和协调等方面的威胁入侵物种是本地或非本地的物种,它们可以大量地占领一个特定的栖息地外来物种是出现在其适应范围和扩散范围之外的非本地或外来生物。3,4生物分类是陆地环境中最常见的生物(植物、哺乳动物和昆虫)的所有类别它们也广泛分布在世界各地的各种生态系统中。IAS有能力建立自己,入侵,超越本地竞争并接管新环境。它们正在影响地球上的每一种生态系统类型,是仅次于栖息地破坏的第二大全球生物多样性威胁。它们正在停止对地球生态系统的威胁,它们为人类提供的服务正处于危险之中外来生态系统通过改变生境和改变水文、养分循环等生态系统过程,间接影响本地物种对食物和繁殖地等资源的直接竞争。它们对农业和牧场、国家公园、水道、湖泊、河流、水坝、路边和城市绿地等生态系统的本地生物多样性产生了影响,造成了巨大的经济和社会后果。这极大地改变了生态系统,既有积极的一面,也有消极的一面。在影响类型中,大多数作者报告的积极影响被负面影响大大超过
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引用次数: 47
Effects of preservative on foetus tissues and DNA profiling in forensic cases 防腐剂对胎儿组织和法医案件DNA分析的影响
Pub Date : 2018-07-02 DOI: 10.15406/ijmboa.2018.03.00071
Naresh Kumar, Aanchal Maitray, Ritika Gupta, S. Shukla
It was in the news when a 10 year old girl became pregnant at Chandigarh in India after being repeatedly raped by a relative in 2017. There are lots of cases of teenage pregnancies involving 14 to 17 year olds. The girl in question has been described as a happy smiley child. On 28 July, Supreme Court of India rejected a petition filed on her behalf to allow her to abort, on the grounds that it is 32 weeks pregnancy. A doctors’ panel was formed and advised the court that a termination at this stage would be too risky for the girl, and foetus was doing well. It was a huge disappointment for the girl’s family. In another case a girl eloped with some friend on 6 September at 7 AM in the morning when she went to the school and did not turn back. First Information report was registered in the nearby police station. The girl was recovered on 31 March and medical examination was done and she was declared pregnant. MTP was done on the 12 May. Total five items were collected including part of foetus in the form of tissue in normal Saline (NS), complete foetus in formalin and placenta in two parts in formalin as well as normal saline, along with blood sample of the victim.
2017年,印度昌迪加尔一名10岁女孩在被亲戚多次强奸后怀孕,这一消息上了新闻。有很多14到17岁少女怀孕的案例。这个女孩被描述为一个快乐的微笑的孩子。7月28日,印度最高法院驳回了代表她提出的允许她堕胎的请愿书,理由是她已经怀孕32周。一个医生小组成立了,并建议法院在这个阶段终止妊娠对女孩来说风险太大,而胎儿状况良好。这对女孩的家人来说是一个巨大的失望。在另一起案件中,一名女孩于9月6日早上7点与一些朋友私奔,当时她去了学校,没有回头。第一份信息报告是在附近的警察局登记的。该女孩于3月31日康复,进行了体检,并宣布怀孕。MTP于5月12日完成。采集了部分组织形态的胎儿(NS)、完整的胎儿(福尔马林)和两部分胎盘(福尔马林和生理盐水)共5个项目,并采集了受害者的血液样本。
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引用次数: 2
Biodegradation of pesticide complex chlorpyrifos + cypermethrin by microorganisms isolated from the Southern Aral Sea region 南咸海地区微生物对毒死蜱+氯氰菊酯复合农药的生物降解研究
Pub Date : 2018-06-26 DOI: 10.15406/ijmboa.2018.03.00070
Tashpulatov Jj, Zaynitdinova Li, Juraeva Rn, Lobanova, Kukanova Si
Anthropogenic natural disaster of the Aral Sea and decreasing outflow of rivers Amudarya and Syrdarya caused a number of irreversible changes in soil microbial communities in the Southern Aral Sea region. Common features of these soils is their high salinization, extreme instability of humidity level up to total draught, and high content of different xenobiotics.1,2 Soil borne microorganisms are one of the main factors controlling degradation of xenobiotics in the natural ecosystem and essential bioindicators reflecting changes in soil, which is related to their enormous importance in soil formatting processes. There is possibility of emergence of strains in microbial populations of such soils that are capable to active degradation of pesticides.3,4 Such cultures, undoubtedly, are perspective for rehabilitation of natural environments.5 The approach engaging microorganismsbiodestructors for rehabilitation of soils polluted with agrochemicals has certain efficiency and effectiveness. Indigenous strains of soil borne microorganisms possessing both ability to destroy pesticides and natural resistance to the complex of pollutants and sharp changes of climatic conditions stipulate importance and feasibility of this approach. In these regards, the microbial biota of the Southern Aral Sea region, characterized by extreme natural conditions, was studied. Different microorganisms were isolated and their ability to destroy pesticides was determined.
咸海的人为自然灾害和阿姆达里亚河和锡尔达里亚河出水量的减少,导致咸海南部地区土壤微生物群落发生了一系列不可逆的变化。这些土壤的共同特征是高度盐碱化,湿度水平极度不稳定直至完全干旱,以及不同的异种生物含量高。1,2土源微生物是控制自然生态系统中外源生物降解的主要因素之一,是反映土壤变化的重要生物指标,在土壤形成过程中具有重要意义。在这种土壤的微生物种群中有可能出现能够主动降解农药的菌株。毫无疑问,这种文化是恢复自然环境的前景利用微生物生物破坏者修复农药污染土壤具有一定的效率和效果。土传微生物的本地菌株既具有破坏农药的能力,又具有对复杂污染物和气候条件急剧变化的天然抗性,这说明了这种方法的重要性和可行性。在此基础上,对具有极端自然条件的南咸海地区的微生物群进行了研究。分离出不同的微生物,并测定其对农药的破坏能力。
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引用次数: 1
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