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Large scale propagation and in vitro weaning for the restoration of Viola palustris to support assisted colonisation of a threatened butterfly 对一种濒危蝴蝶的辅助定植进行大规模繁殖和体外断奶
IF 1.7 Q2 Agricultural and Biological Sciences Pub Date : 2021-10-01 DOI: 10.4172/2332-2543.1000212
Jonathan P. Kendon, A. Novotná, M. Ramsay, A. Porter, V. Sarasan
Abstract The distribution and abundance of Boloria selene (small pearl-bordered fritillary butterfly, SPBF) declined over recent decades in many parts of the UK. Availability of food plants, especially marsh violet (Viola palustris), for the caterpillars of the SPBF has been identified as one of the major causes of this decline. To achieve augmentation of existing colonies and develop new populations of SPBF large numbers of marsh violet propagules were required specifically to feed the larvae. The main objectives of the study were to produce thousands of good quality marsh violet propagules to restore selected habitats in the Heart of Durham, Northern England, using in vitro methods. Preliminary trials showed that in vitro multiplication of seedlings from wild collected seeds through conventional agar-based cultures was lengthy, expensive and turned out to be a non-viable route to achieve the objectives. This study explored the potential of bioreactor-based cloning and cost-effective one step rooting and weaning. Robust propagules, ready for transplantation following rapid propagation and one step rooting and weaning in vitro, were raised in a plug system for transplantation and establishment under field conditions. This was achieved by using simple and cost-effective methods to support the large-scale restoration exercise using 14,000 propagules. Application of high throughput micropropagation and low cost one step weaning systems for time-bound conservation and restoration projects are discussed in detail. This research highlights the important role of in vitro methods to support integrated biodiversity conservation of a native larval host plant and threatened butterfly.
摘要近几十年来,英国许多地区的小珍珠镶边贝母蝴蝶(Boloria selene, SPBF)的分布和丰度都有所下降。可获得的食物植物,特别是沼泽堇菜(Viola palustris),可作为SPBF毛虫的食物,已被确定为这种下降的主要原因之一。为了扩大现有的种群数量和发展新的SPBF种群,需要大量的沼泽紫罗兰繁殖体专门喂养幼虫。这项研究的主要目的是通过体外培养的方法,生产出数千株优质的沼泽紫罗兰繁殖体,以恢复英格兰北部达勒姆中心地区选定的栖息地。初步试验表明,通过传统的琼脂为基础的培养,从野生收集的种子中体外繁殖幼苗是漫长而昂贵的,并且证明是实现目标的不可行的途径。本研究探索了基于生物反应器的克隆技术和经济高效的一步生根断奶技术的潜力。通过快速繁殖和一步离体生根和断奶,在插塞系统中培养健壮的繁殖体,以便在田间条件下进行移植和建立。这是通过使用简单和具有成本效益的方法来支持使用14,000个繁殖体的大规模恢复演习来实现的。详细讨论了高通量微繁殖和低成本一步断奶系统在有时限保护和恢复工程中的应用。本研究强调了体外方法在支持本地幼虫寄主植物和濒危蝴蝶生物多样性综合保护中的重要作用。
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引用次数: 0
Unrevealing the impact of pulsed electric fields (PEF) on cucumber seed vigour and surface disinfection 脉冲电场(PEF)对黄瓜种子活力和表面消毒的影响
IF 1.7 Q2 Agricultural and Biological Sciences Pub Date : 2021-10-01 DOI: 10.2478/ebtj-2021-0027
B. Atmaca, G. Akdemir Evrendilek, N. Bulut, Sibel Uzuner
Abstract Chemicals used for seed treatments help to increase the agricultural production by preventing pests and pathogens but also cause environmental and health problems. Thus, environmentally-friendly technologies need to be developed for a seed treatment that inactivates surface microflora and improves seed vigor. One such pulsed electric field (PEF) treatment applied to cucumber seeds in the range of 1.07-17.28 Joule (J) significantly enhanced a mean germination rate (MGR) by up to 9%, a normal seedling rate by 25.73%, and a resistance to 100 and 200 mM salt stresses by 96% and 91.67%, respectively, with a stronger and faster growth of roots and seedlings. PEF treatment provided 3.34 and 3.22 log-reductions in the surface microflora of total mold and yeast and total aerobic mesophilic bacteria, respectively. The electrical conductivity (EC) values of the control samples increased over time, from 4 to 24 h. Those of the PEF-treated samples after 4, 12, and 24th hours were also more affected by the measurement time not by the PEF treatment. The joint optimization of 18 responses based on the best-fit Gaussian process model pointed to 19.78 s and 17.28 J as the optimal settings. The PEF treatment appeared to improve seed germination ability and stress resistance with the adequate inactivation of surface microflora.
用于种子处理的化学品通过防治病虫害有助于提高农业产量,但也会造成环境和健康问题。因此,需要开发环境友好的技术来处理种子,使表面微生物群失活,提高种子活力。在1.07 ~ 17.28焦耳(J)的脉冲电场处理下,黄瓜种子的平均发芽率(MGR)提高了9%,正常出苗率提高了25.73%,抗100和200 mM盐胁迫的能力分别提高了96%和91.67%,根和苗的生长更快、更强。PEF处理使霉菌和酵母表面菌群总数和好氧中温细菌总数分别减少3.34和3.22个对数。对照样品的电导率(EC)值随着时间的推移而增加,从4到24 h。经过PEF处理的样品的电导率(EC)值在4、12和24小时后也更受测量时间的影响,而不是PEF处理。基于最拟合高斯过程模型对18个响应进行联合优化,得出19.78 s和17.28 J为最优设置。PEF处理可以提高种子的萌发能力和抗逆性,使表面微生物失活。
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引用次数: 1
SCM-198 Can Regulate Autophagy Through the Bax/Bcl-2/TLR4 Pathway to Alleviate Renal Ischemia-Reperfusion Injury SCM-198可通过Bax/Bcl-2/TLR4通路调节自噬,减轻肾缺血再灌注损伤
IF 1.7 Q2 Agricultural and Biological Sciences Pub Date : 2021-10-01 DOI: 10.2478/ebtj-2021-0025
E. Eraslan, B. Bircan, A. Tanyeli̇, Mustafa Can Güler, Y. Bayir, S. Altun
Abstract Renal ischemia-reperfusion (I/R) injury is frequently observed in several clinical cases. In this study, we want to investigate that SCM-198 attenuates renal injury in the renal I/R model and find out the possible mechanisms. Wistar albino 40 male rats were classified into four groups (n=10): control, DMSO, I/R, and SCM-198 30 mg/kg. In the group 4, SCM-198 was administered intraperitoneally once at the doses of 30 mg/kg following the reperfusion. Glomerular associated proteins (PCX), tubular damage factors (NGAL, KIM-1), blood urea nitrogen (BUN), serum creatinine, inflammatory cytokines (IL-1β, IL-18, and TNF-α), Bax/Bcl-2, TLR4, LC3B, and Beclin-1 were evaluated. SCM-198 played an essential role in mitigating kidney damage. SCM-198 alleviated tubular damage and decreased IL-1β, IL-18, and TNF-α levels. SCM-198 reduced the apoptosis marker Bax/Bcl-2 ratio, immune system protein TLR4, and autophagy proteins LC3B and Beclin-1. In brief, our results support the notion that SCM-198 has protective effects on I/R-induced renal injury. SCM-198 therapy may be a new alternative for the prevention and treatment of renal I/R injury.
摘要肾缺血再灌注(I/R)损伤是临床上常见的病例。在本研究中,我们希望研究SCM-198在肾I/R模型中减轻肾损伤的作用,并找出可能的机制。Wistar白化40雄性大鼠分为4组(n=10):对照组、DMSO组、I/R组和SCM-198 30 mg/kg组。第4组在再灌注后腹腔注射SCM-198 1次,剂量为30 mg/kg。检测肾小球相关蛋白(PCX)、肾小管损伤因子(NGAL、KIM-1)、血尿素氮(BUN)、血清肌酐、炎症因子(IL-1β、IL-18、TNF-α)、Bax/Bcl-2、TLR4、LC3B、Beclin-1。SCM-198在减轻肾脏损害方面发挥了重要作用。SCM-198减轻了小管损伤,降低了IL-1β、IL-18和TNF-α水平。SCM-198降低凋亡标志物Bax/Bcl-2比值、免疫系统蛋白TLR4、自噬蛋白LC3B和Beclin-1。简而言之,我们的研究结果支持了SCM-198对I/ r诱导的肾损伤具有保护作用的观点。SCM-198治疗可能是预防和治疗肾I/R损伤的一种新的选择。
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引用次数: 1
Investigation of Polyacrylic Acid Toxicity in Human Breast Cancer (MCF-7) and Mouse Fibroblast (L-929) Cell Lines 聚丙烯酸对人乳腺癌(MCF-7)和小鼠成纤维细胞(L-929)的毒性研究
IF 1.7 Q2 Agricultural and Biological Sciences Pub Date : 2021-07-01 DOI: 10.2478/ebtj-2021-0021
M. Ersoz, A. Allahverdiyev
Abstract In recent years, biopolymers have been widely used in various fields of medicine. Before using any polymer, its biocompatibility should be examined. Polyacrylic acid (PAA), a polyelectrolyte, is known to be used as an adjuvant effect in immunology, anti-thrombogenic effect in medical experiments, and as a carrier in drug delivery systems. Although there are studies on various conjugates and nanoparticles of PAA, studies on its toxicity alone are limited. Determination of toxicity in biopolymer studies is extremely important. Cultures of various cells are used for toxicity analyses. This study aimed to investigate the toxicity of PAA in human breast cancer (MCF-7) and mouse fibroblast (L-929) cell lines by various methods. Cell culture, 3-(4,5-dimethyltriazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT), trypan blue and 4,6-diamidino 2 phenylindole (DAPI) methods were used in the study. The half-maximal effective concentration (EC50) value of PAA was 6.6 mg/ml in MCF 7 cells and 1.8 mg/ ml in L-929 cells. Apoptosis was observed in cells on the increasing PAA concentration with DAPI. With these results, the cytotoxic properties of PAA were determined in vitro. Accordingly, the biocompatibility of polymers to be used in modeling should be supported by in vitro and in vivo studies.
近年来,生物聚合物在医学的各个领域得到了广泛的应用。在使用任何聚合物之前,应检查其生物相容性。聚丙烯酸(PAA)是一种聚电解质,已知在免疫学中用作辅助作用,在医学实验中用作抗血栓形成作用,并在药物输送系统中用作载体。虽然对PAA的各种缀合物和纳米颗粒进行了研究,但单独对其毒性的研究还很有限。在生物聚合物的研究中,毒性的测定是非常重要的。各种细胞的培养用于毒性分析。本研究旨在通过多种方法研究PAA对人乳腺癌(MCF-7)和小鼠成纤维细胞(L-929)的毒性。采用细胞培养法、3-(4,5-二甲基三唑-2-基)-2,5-二苯基溴化四唑(MTT)、台苯蓝法和4,6-二氨基2苯基吲哚(DAPI)法进行研究。PAA在mcf7细胞和L-929细胞中的半最大有效浓度(EC50)分别为6.6 mg/ml和1.8 mg/ml。DAPI使PAA浓度升高,细胞出现凋亡。在此基础上,测定了PAA的体外细胞毒性。因此,用于建模的聚合物的生物相容性应该得到体内和体外研究的支持。
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引用次数: 1
Synthesis, Characterization, and Optimization of Green Silver Nanoparticles Using Neopestalotiopsis clavispora and Evaluation of Its Antibacterial, Antibiofilm, and Genotoxic Effects 棒状新香蒜噻菌绿色银纳米粒子的合成、表征、优化及其抗菌、抗菌膜和基因毒性评价
IF 1.7 Q2 Agricultural and Biological Sciences Pub Date : 2021-07-01 DOI: 10.2478/ebtj-2021-0020
Tuğba Kahraman, S. Elif Korcan, R. Liman, İ. Hakkı Ciğerci, Y. Acikbas, M. Konuk, Gülderen Uysal Akkuş
Abstract Silver nanoparticles (AgNPs) have been used in a variety of biomedical applications in the last two decades, including antimicrobial, anti-inflammatory, and anticancer treatments. The present study highlights the extracellular synthesis of silver nanoparticles AgNPs using Neopestalotiopsis clavispora MH244410.1 and its antibacterial, antibiofilm, and genotoxic properties. Locally isolated N. clavispora MH244410.1 was identified by Internal transcribed spacer (ITS) sequences of nuclear ribosomal DNA. Optimization of synthesized AgNPs was performed by using various parameters (pH (2, 4, 7, 9 and 12), temperature (25, 35 and 45 °C), and substrate concentration (0.05, 0.1, 0.15, 0.2 and 0.25 mM)). After 72 hours of incubation in dark conditions, the best condition for the biosynthesis of AgNPs was determined as 0.25 mM metal concentration at pH 12 and 35 °C. Fungal synthesized AgNPs were characterized via spectroscopic and microscopic techniques such as Fouirer Transform Infrared Spectrophotometer (FTIR), UV-Visible Spectroscopy, and Transmission Electron Microscopy (TEM). The average size of the AgNPs was determined less than 60 nm using the TEM and Zetasizer measurement system (measured in purity water suspension). The characteristic peak of AgNPs was observed at ~414 nm from UV-Vis results. Antibacterial and genotoxic activity of synthesized AgNPs (0.1, 1, and 10 ppm) were also determined by using the agar well diffusion method and in vivo Somatic Mutation and Recombination Test (SMART) in Drosophila melanogaster. AgNPs exhibited potential antimicrobial activity against all the tested bacteria (Bacillus subtilis, Staphylococcus aureus, and Pseudomonas aeruginosa) except Escherichia coli in a dose-dependent manner. AgNPs did not induce genotoxicity in the Drosophila SMART assay. 79.33, 65.47, and 41.95% inhibition of biofilms formed by P. aeruginosa were observed at 10, 1, and 0.1 ppm of AgNPs, respectively. The overall results indicate that N. clavispora MH244410.1 is a good candidate for novel applications in biomedical research.
摘要在过去的二十年里,银纳米颗粒(AgNPs)已被用于各种生物医学应用,包括抗菌、抗炎和抗癌治疗。本研究重点介绍了使用棒孢新霉MH244410.1在细胞外合成银纳米颗粒AgNPs及其抗菌、抗菌膜和遗传毒性特性。通过核核糖体DNA的内部转录间隔区(ITS)序列鉴定了局部分离的棒孢N.clavispora MH244410.1。通过使用各种参数(pH(2、4、7、9和12)、温度(25、35和45°C)和底物浓度(0.05、0.1、0.15、0.2和0.25mM)对合成的AgNPs进行优化。在黑暗条件下孵育72小时后,确定AgNPs生物合成的最佳条件为pH 12和35°C下0.25mM金属浓度。通过光谱和显微镜技术,如傅里叶变换红外分光光度计(FTIR)、紫外可见光谱和透射电子显微镜(TEM),对真菌合成的AgNPs进行了表征。使用TEM和Zetasizer测量系统(在纯水悬浮液中测量)确定AgNP的平均尺寸小于60nm。紫外-可见光谱结果显示,AgNPs的特征峰在~414nm处。还通过琼脂扩散法和体内体细胞突变和重组试验(SMART)测定了合成的AgNPs(0.1、1和10ppm)在果蝇中的抗菌和基因毒性活性。AgNPs以剂量依赖的方式对除大肠杆菌外的所有测试细菌(枯草芽孢杆菌、金黄色葡萄球菌和铜绿假单胞菌)表现出潜在的抗菌活性。在果蝇SMART试验中,AgNPs没有诱导遗传毒性。在10、1和0.1ppm的AgNPs下,分别观察到79.33、65.47和41.95%对铜绿假单胞菌形成的生物膜的抑制。总体结果表明,N.clavispora MH244410.1是生物医学研究中新应用的良好候选者。
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引用次数: 3
New Technology Tools and Life Cycle Analysis (LCA) Applied to a Sustainable Livestock Production 应用于可持续畜牧生产的新技术工具和生命周期分析(LCA)
IF 1.7 Q2 Agricultural and Biological Sciences Pub Date : 2021-07-01 DOI: 10.2478/ebtj-2021-0022
E. D’Agaro, F. Rosa, N. Akentieva
Abstract Agriculture 4.0, a combination of mechanical innovation and information and communication technologies (ICT) using precision farming, omics technologies and advanced waste treatment techniques, can be used to enhance the biological potential of animal and crop productions and reduce livestock gaseous emissions. In addition to animal proteins being excellent nutritional ingredients for the human diet, there is a growing concern regarding the amount of energy spent converting vegetable crops into animal protein and the relevant environmental impacts. Using the value chain analysis derived from the neoclassic production theory extended to industrial processing and the market, the hypothesis to be tested concerns the sustainability and convenience of different protein sources. The methodology implies the use of life cycle analysis (LCA) to evaluate the efficiency of different livestock diet ingredients. The use of feeding products depend upon various factors, including cost reduction, consumer acceptance, incumbent industry response, civil society support, policy consensus, lower depletion of natural resources, improved sustainable agri-food supply chain and LCA. EU policy makers should be aware of these changes in livestock and market chains and act proactively to encourage the use of alternative animal proteins.
摘要农业4.0是机械创新和信息通信技术(ICT)的结合,利用精准农业、组学技术和先进的废物处理技术,可用于提高动物和作物生产的生物潜力,减少牲畜的气体排放。除了动物蛋白是人类饮食的优秀营养成分外,人们越来越关注将蔬菜作物转化为动物蛋白所花费的能量以及相关的环境影响。利用源自新古典生产理论的价值链分析,将其扩展到工业加工和市场,待检验的假设涉及不同蛋白质来源的可持续性和便利性。该方法意味着使用生命周期分析(LCA)来评估不同牲畜饮食成分的效率。饲料产品的使用取决于各种因素,包括成本降低、消费者接受度、现有行业的反应、民间社会的支持、政策共识、减少自然资源的消耗、改善可持续农业食品供应链和生命周期评价。欧盟政策制定者应该意识到牲畜和市场链的这些变化,并积极行动,鼓励使用替代动物蛋白。
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引用次数: 6
Effect of storage time on the biodegradability of olive oil mill wastewater from the cold extraction of olive oil system 贮存时间对橄榄油冷萃取废水生物降解性的影响
IF 1.7 Q2 Agricultural and Biological Sciences Pub Date : 2021-07-01 DOI: 10.2478/ebtj-2021-0023
Z. Gueboudji, M. Bagues, K. Kadi, K. Nagaz, D. Addad
Abstract The olive oil processing industry’s liquid effluents (OMW) have a polluting capacity for the ecosystems. This study aimed to evaluate the physicochemical quality of OMW of two varieties of separated and combined olives cultivated in Khenchela Eastern Algeria, from the cold extraction of the olive oil extraction system. These was to determine their degree of pollution and biodegradability during one year of storage at ambient temperature to recommend the correct treatment for each storage time. Results of the measured parameters pH, EC,TSS percent, H2O percent, lipids, DM, OM, MM, VM, COT percent, NTK percent, C/N, BOD5, COD, BI, TOM, BOD5/COD show that wastewater from olive oil mills has an acid pH, and they are very loaded with organic matter evaluated in terms of COD and BOD5, quite filled with minerals. The storage of olive mill waste can reduce progressively the pollution caused by this waste. Whereas during one year, the reduction rate of COD, BOD5, TOM, BI, is respectively 29.4%, 54.8%, 39.16%, 54.2%, but C/N, BOD5/COD continue to increase as well as pH that continues to decrease during the storage. Accordingly, storing olive mill waste during a year reduces its pollution rate, so it is slowly biodegradable. When disposing of it, an adequate treatment procedure must be required to protect the environment.
橄榄油加工业的液体废水(OMW)对生态系统具有污染能力。本研究旨在评价在阿尔及利亚东部Khenchela种植的两个分离和组合橄榄品种,在橄榄油提取系统的冷提取中,其OMW的理化品质。这是为了确定它们在环境温度下储存一年的污染程度和生物降解性,以推荐每个储存时间的正确处理。pH、EC、TSS百分比、H2O百分比、脂类、DM、OM、MM、VM、COT百分比、NTK百分比、C/N、BOD5、COD、BI、TOM、BOD5/COD的测定结果表明,橄榄油厂废水pH值偏酸性,COD和BOD5评价的有机物含量较高,矿物质含量较高。橄榄磨废料的贮存可以逐步减少这种废料所造成的污染。1年内COD、BOD5、TOM、BI的降低率分别为29.4%、54.8%、39.16%、54.2%,但C/N、BOD5/COD持续升高,pH持续降低。因此,在一年内储存橄榄磨坊废物可以减少其污染率,因此可以缓慢地进行生物降解。在处置时,必须采取适当的处理程序以保护环境。
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引用次数: 5
Effect of Cerebrospinal Fluid on Fibroblasts Concerning Epidural Fibrosis: An In Vitro Study 脑脊液对硬膜外纤维化成纤维细胞影响的体外研究
IF 1.7 Q2 Agricultural and Biological Sciences Pub Date : 2021-07-01 DOI: 10.2478/ebtj-2021-0019
D. Gürkanlar, S. Lafcı Fahrioğlu, U. Fahrioğlu
Abstract One of the most common treatments for lumbar disc herniation and other lumbar disorders is lumbar laminectomy. There may be some unwanted and serious complications with this procedure such as the “failed back surgery syndrome (FBSS)”. Epidural fibrosis (EF), mainly due to fibroblast proliferation, emerges as the main cause of failed back surgery syndrome. According to the current literature and practice techniques, different agents are being used to prevent EF formation. To date there is no single agreed upon treatment method of EF. In this study, dilutional effect of CSF, together with low potassium levels, on primary skin fibroblast cultures was studied as a possible material for EF prevention. CSF at different concentrations (0-100%) were tested to see its effect on Skin fibroblast proliferation. A wound healing assay was also performed to see the effect of CSF on wound healing. The cell proliferation goes up from 24h to 72hr in all CSF percentages from 0-75% but the proliferation was inhibited at 100% CSF. The “wound” is closed successfully in all CSF percentages between 0-75. The 100% CSF fails to completely close the wound. Adverse effects of low concentrations of potassium levels and dilutional effect of CSF may be a promising solution in the prevention of EF. Further in vivo and in vitro experiments are required to characterize its use.
腰椎间盘突出症和其他腰椎疾病最常见的治疗方法之一是腰椎椎板切除术。这种手术可能会有一些不想要的和严重的并发症,如“背部手术失败综合征”。硬膜外纤维化(EF)主要由成纤维细胞增殖引起,是背部手术失败综合征的主要原因。根据目前的文献和实践技术,不同的药物被用来预防EF的形成。到目前为止,EF的治疗方法还没有统一的共识。在这项研究中,研究了脑脊液的稀释作用以及低钾水平对原代皮肤成纤维细胞培养的影响,作为预防EF的可能材料。观察不同浓度(0 ~ 100%)CSF对皮肤成纤维细胞增殖的影响。还进行了伤口愈合试验,以观察脑脊液对伤口愈合的影响。在CSF浓度为0 ~ 75%的情况下,细胞增殖在24 ~ 72小时均呈上升趋势,但在100% CSF浓度时,细胞增殖受到抑制。所有CSF百分比在0-75之间的“伤口”都成功闭合。100%的脑脊液无法完全闭合伤口。低钾浓度的不良反应和脑脊液的稀释作用可能是预防EF的一个有希望的解决方案。需要进一步的体内和体外实验来确定其用途。
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引用次数: 0
The 3M Concept: Biomedical Translational Imaging from Molecules to Mouse to Man 3M概念:从分子到小鼠再到人的生物医学转化成像
IF 1.7 Q2 Agricultural and Biological Sciences Pub Date : 2021-07-01 DOI: 10.2478/ebtj-2021-0024
D. Máthé, B. Kiss, B. Pályi, Z. Kis, László Forgách, N. Hegedűs, Z. Varga, K. Szigeti, K. Karlinger, M. Kellermayer
Abstract Imaging keeps pervading biomedical sciences from the nanoscale to the bedside. Connecting the hierarchical levels of biomedicine with relevant imaging approaches, however, remains a challenge. Here we present a concept, called “3M”, which can deliver a question, formulated at the bedside, across the wide-ranging hierarchical organization of the living organism, from the molecular level, through the small-animal scale, to whole-body human functional imaging. We present an example of nanoparticle development pipeline extending from atomic force microscopy to pre-clinical whole body imaging methods to highlight the essential features of the 3M concept, which integrates multi-scale resolution and quantification into a single logical process. Using the nanoscale to human clinical whole body approach, we present the successful development, characterisation and application of Prussian Blue nanoparticles for a variety of imaging modalities, extending it to isotope payload quantification and shape-biodistribution relationships. The translation of an idea from the bedside to the molecular level and back requires a set of novel combinatorial imaging methodologies interconnected into a logical pipeline. The proposed integrative molecules-to-mouse-to-man (3M) approach offers a promising, clinically oriented toolkit that lends the prospect of obtaining an ever-increasing amount of correlated information from as small a voxel of the human body as possible.
摘要成像不断渗透到生物医学科学,从纳米级到床边。然而,将生物医学的层次结构与相关的成像方法联系起来仍然是一个挑战。在这里,我们提出了一个名为“3M”的概念,它可以在床边提出一个问题,跨越生物体的广泛层次组织,从分子水平,到小动物规模,再到全身人类功能成像。我们展示了一个从原子力显微镜延伸到临床前全身成像方法的纳米颗粒开发管道的例子,以突出3M概念的基本特征,该概念将多尺度分辨率和量化集成到一个单一的逻辑过程中。使用纳米级到人体临床全身的方法,我们介绍了普鲁士蓝纳米颗粒在各种成像模式中的成功开发、表征和应用,并将其扩展到同位素有效载荷量化和形状生物分布关系。将一个想法从床边转换到分子水平再转换回来,需要一套新的组合成像方法,这些方法相互连接成一个逻辑管道。所提出的整合分子到小鼠到人(3M)方法提供了一个有前景的、面向临床的工具包,有可能从尽可能小的人体体素中获得越来越多的相关信息。
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引用次数: 0
In silico analysis of selected components of grapefruit seed extract against SARS-CoV-2 main protease 葡萄柚籽提取物中选定成分对抗严重急性呼吸系统综合征冠状病毒2型主要蛋白酶的计算机分析
IF 1.7 Q2 Agricultural and Biological Sciences Pub Date : 2021-06-01 DOI: 10.2478/ebtj-2021-0015
Belmina Saric, Nikolina Tomić, Abdurahim Kalajdžić, N. Pojskić, L. Pojskic
Abstract At the end of December 2019, first identified cases of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) started emerging. Ever since the emergence of the first case of infection with SARS-CoV-2 or COVID-19, it became the hottest research topic of numerous studies, in which scientists are trying to understand the path of infection, transmission, replication and viral action, all in order of finding a potential cure or vaccine applying various fundamental principles and methodologies. Using in silico method via AutoDock Vina 1.1.2., we analysed the binding affinity of six selected compounds from grapefruit seed extract (GSE) (narirutin, naringin, naringenin, limonin, ascorbic acid and citric acid) to SARS-CoV-2 main protease Mpro (PDB ID: 6Y84), using acetoside, remdesivir and gallic acid as a positive controls of binding affinity. Results showed highest affinity (rmsd l.b. 0.000; rmsd u.b. 0.000) for narirutin (-10.5), then for naringin (-10.1), acetoside (-10.0), limonin (-9.9), remdesivir (-9.6), naringenin (-8.2), ascorbic acid (-6.7), citric acid (-6.4) and gallic acid (-6.4), all expressed in kcal/mol. Our findings suggest that selected compounds from grapefruit seed extract represent potential inhibitors of SARS-CoV-2 Mpro, but further research is needed as well as preclinical and clinical trials for final confirmation of inhibitory functionality of these compounds.
2019年12月底,首例SARS-CoV-2确诊病例开始出现。自第一例SARS-CoV-2或COVID-19感染病例出现以来,它成为众多研究中最热门的研究课题,科学家们试图了解感染,传播,复制和病毒作用的途径,所有这些都是为了寻找潜在的治疗方法或疫苗,应用各种基本原理和方法。使用在硅方法通过AutoDock Vina 1.1.2。以乙酰糖苷、瑞德西韦和没食子酸为阳性对照,分析了从葡萄柚籽提取物(GSE)中筛选出的6种化合物(narirutin、naringin、柚皮苷、柠檬素、抗坏血酸和柠檬酸)与SARS-CoV-2主要蛋白酶Mpro (PDB ID: 6Y84)的结合亲和力。结果显示亲合力最高(rmsd l.b.0.000;其次是柚皮苷(-10.1)、乙糖苷(-10.0)、柠檬苦素(-9.9)、雷姆德西韦(-9.6)、柚皮苷(-8.2)、抗坏血酸(-6.7)、柠檬酸(-6.4)和没食子酸(-6.4),均以kcal/mol表示。我们的研究结果表明,从葡萄柚籽提取物中筛选出的化合物可能是SARS-CoV-2 Mpro的潜在抑制剂,但需要进一步的研究以及临床前和临床试验来最终确认这些化合物的抑制功能。
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引用次数: 2
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The EuroBiotech Journal
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