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Serum collected from rats with myocardial infarction increases extracellular matrix accumulation by myofibroblasts isolated from myocardial infarction scar 从心肌梗死大鼠采集的血清增加了从心肌梗死疤痕中分离的肌成纤维细胞的细胞外基质积累
IF 1.7 Q3 MULTIDISCIPLINARY SCIENCES Pub Date : 2022-01-01 DOI: 10.2478/ebtj-2022-0001
L. Piera, J. Szymański, T. Kun, A. Krzymińska, M. Juszczak, J. Drobnik
Abstract The effect on extracellular matrix content is believed to be an average of several serum derived compounds acting in opposition. The aim of the study is to determine whether whole serum of rats with myocardial infarction may modify the accumulation of extracellular matrix in cultures of myofibroblasts isolated from the myocardial infarction scar. A second aim is to determine whether the tested serum can also degranulate the mast cells. Serum was collected from rats with sham myocardial infarction, rats with myocardial infarction induced by coronary artery ligation and control animals. The experiments were carried out on myocardial infarction scar myofibroblasts or mast cells from the peritoneal cavity. The cultures were divided into three groups containing eight cultures each: one treated with serum from control rats, from animals after sham operation or from those after myocardial infarction. In all groups, the serum was used at concentrations of 10%, 20% or 30%. The total collagen content (Woesner method) glycosaminoglycan level (Farandale method), cell proliferation (BrdU), histamine secretion from mast cells (spectrofluorymetry), β1 integrin and α-smooth muscle actin expression (flow cytometry) were evaluated. Isolated cells were α-smooth muscle actin positive and identified as myofibroblasts. Serum derived from rats with myocardial infarction increased collagen and glycosaminoglycan content in the cultures and modified myofibroblast proliferation in a concentration-dependent manner. The serum also results in an imbalance between collagen and glycosaminoglycan levels. The content of β1 integrin was not influenced by myocardial infarction serum. The serum of rats with myocardial infarction is involved in regulation of collagen and glycosaminoglycan content in myofibroblast cultures, as well as the modification of their proliferation. These changes were not accompanied with integrin β1 density variations. The serum of the myocardial infarction rats did not influence the mast cell degranulation.
对细胞外基质含量的影响被认为是几种血清衍生化合物相互作用的平均值。本研究的目的是确定心肌梗死大鼠的全血清是否可以改变心肌梗死疤痕分离的肌成纤维细胞培养物中细胞外基质的积累。第二个目的是确定测试的血清是否也能使肥大细胞脱颗粒。采集假性心肌梗死大鼠、冠状动脉结扎致心肌梗死大鼠及对照动物血清。实验是在心肌梗死瘢痕肌成纤维细胞或腹腔肥大细胞上进行的。将培养物分为三组,每组8个培养物:一组用对照大鼠、假手术后动物和心肌梗死后动物的血清处理。在所有组中,血清浓度分别为10%、20%和30%。测定总胶原含量(Woesner法)、糖胺聚糖水平(Farandale法)、细胞增殖(BrdU)、肥大细胞组胺分泌(荧光光谱法)、β1整合素和α-平滑肌肌动蛋白表达(流式细胞术)。分离细胞α-平滑肌肌动蛋白阳性,鉴定为肌成纤维细胞。心肌梗死大鼠血清中胶原蛋白和糖胺聚糖含量增加,并以浓度依赖性方式改变肌成纤维细胞增殖。血清也会导致胶原蛋白和糖胺聚糖水平失衡。心肌梗死血清对β1整合素含量无明显影响。心肌梗死大鼠血清参与调节肌成纤维细胞培养中胶原蛋白和糖胺聚糖含量,并改变其增殖。这些变化不伴有整合素β1密度的变化。心肌梗死大鼠血清对肥大细胞脱颗粒无影响。
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引用次数: 0
Chemical toxicity assessment and Physiological investigation in rats exposed to pyrethroid insecticide type 1 and possible mitigation of propolis 1型拟除虫菊酯类杀虫剂对大鼠的化学毒性评估和生理学研究及蜂胶的可能缓解作用
IF 1.7 Q3 MULTIDISCIPLINARY SCIENCES Pub Date : 2022-01-01 DOI: 10.2478/ebtj-2022-0002
Amal I. Hassan, I. Bondouk, K. Omar, Heba A. Esawii, H. M. Saleh
Abstract The current investigation aims to study the potential protective effects of propolis methanolic extract (100 mg/kg BW) on the systemic toxic effects after dietary exposure concentration (1/100 LD50 for 30 days) of permethrin (PM) administered in experimental rats. In this experiment, we added propolis four weeks after PM -administration to examining the medicinal effects. Therapeutic use of propolis mitigated PM -induced deterioration of liver and kidney functions and myocardial damage measured by cardiac enzymes lactate dehydrogenase (LDH) and creatine kinase MB (CK-MB) in serum. In addition, propolis treatment (prophylactic and therapeutic) prevented PM-induced apoptosis index, including B-cell lymphoma protein 2 (BCL-2)-associated X (BAX) protein activates, and lipid peroxide (LP). The results showed propolis induced a significant decrease in serum levels of thyroid hormones (T3 and T4), proinflammatory cytokines tumor necrosis factor-alpha (TNF-α), interferon-gamma (INF-γ), interleukin one beta (IL-1β), interleukin 12 (IL-12), and interleukin 6 (IL-6). Besides, nuclear factor-kappa B (NF-kB), acetylcholine esterase (AChE), and hematological constituents. Cardiac biomarkers, liver, and kidney functions were substantially lower in propolis treatment. High-performance liquid chromatography (HPLC) and Gas chromatography–mass spectrometry (GC- MS) of the propolis-MeOH extract showed valuable antioxidant phenolics and flavonoids capable of alleviating oxidative stress through the free-radical scavenging efficacy and regulating signaling pathways of proinflammatory cytokines.
摘要本实验旨在研究蜂胶甲醇提取物(100 mg/kg BW)对氯菊酯(PM)饲粮暴露浓度(1/100 LD50) 30 d后的全身毒性作用的潜在保护作用。在本实验中,我们在PM给药四周后加入蜂胶,观察其药效。蜂胶的治疗性使用减轻了PM引起的肝肾功能恶化和心肌损伤(血清乳酸脱氢酶(LDH)和肌酸激酶MB (CK-MB))。此外,蜂胶处理(预防性和治疗性)可抑制pm诱导的凋亡指数,包括b细胞淋巴瘤蛋白2 (BCL-2)相关X (BAX)蛋白激活和脂质过氧化(LP)。结果表明,蜂胶可显著降低血清甲状腺激素(T3、T4)、促炎因子肿瘤坏死因子α (TNF-α)、干扰素γ (INF-γ)、白细胞介素1β (IL-1β)、白细胞介素12 (IL-12)、白细胞介素6 (IL-6)水平。此外,核因子κ B (NF-kB)、乙酰胆碱酯酶(AChE)和血液学成分。蜂胶处理的心脏生物标志物、肝脏和肾脏功能显著降低。蜂胶- meoh提取物的高效液相色谱(HPLC)和气相色谱-质谱(GC- MS)分析表明,蜂胶- meoh提取物中含有有价值的抗氧化酚类物质和类黄酮,能够通过清除自由基和调节促炎细胞因子的信号通路来缓解氧化应激。
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引用次数: 2
Aerobic Composting of Sugar Pressmud with Stabilized Spentwash and selected Microbial Consortium 稳压污泥好氧堆肥及微生物群选择
IF 1.7 Q3 MULTIDISCIPLINARY SCIENCES Pub Date : 2022-01-01 DOI: 10.2478/ebtj-2022-0004
A. Byakodi, B. Babu
Abstract India is the world’s largest producer of sugar, with an annual production capacity of 29 million tonnes. Each crushing season, this intern produces over 10 million tonnes of pressmud, which is difficult to dispose of due to its inherent properties. The present study is part of larger investigation for treatment and disposal of pressmud and spentwash. Further, scope of this research article is confined to utilization of pressmud for aerobic composting of pressmud along with selected microbial consortium and stabilized spentwash. Composting was carried out in an open area with 50 kg of pressmud and 1% (w/w) dosage of microbial consortium. Stabilized spentwash was used at concentrations of 25, 50, 100, 150 and 200% (v/w) and applied at predetermined time intervals. The entire study lasted for 50 days and the results were compared to those recommended by the Fertilizer Control Order (FCO), Ministry of Agriculture, Government of India (1). In an organic compost, the FCO recommends a minimum concentration of 12%, 0.80%, 0.40%, and 0.40% in TOC, TKN, phosphorous and potassium, with a maximum C/N ratio of 20. During composting, the addition of 150% (CH5) stabilized spentwash resulted in a maximum nutrient concentration in the majority of the parameters analysed. CH5 showed that the concentration of TOC, TKN, C/N, phosphorous and potassium were 25.92±2.19%, 2.16±0.29%, 12.28±0.66, 6.55±0.11% and 15.90±1.37% respectively. Hence, it can be concluded that selected microbial consortium is capable of decomposing the organic matter found in pressmud. Additionally, the application of stabilized spentwash enhanced the nutritional content of end product.
印度是世界上最大的糖生产国,年生产能力为2900万吨。每个破碎季节,这个实习生产生超过1000万吨的压泥,由于其固有的性质,这些压泥很难处理。目前的研究是对压浆和废浆处理和处置的较大调查的一部分。此外,本文的研究范围仅限于利用压力污泥与选定的微生物联合体和稳定的废水进行好氧堆肥。堆肥在开放区域进行,压力为50 kg,微生物群落用量为1% (w/w)。稳定的废洗液以25、50、100、150和200% (v/w)的浓度使用,并在预定的时间间隔使用。整个研究持续50 d,并与印度政府农业部肥料控制令(FCO)推荐的结果进行比较(1)。FCO建议有机堆肥中TOC、TKN、磷和钾的最低浓度分别为12%、0.80%、0.40%和0.40%,最大C/N比为20。在堆肥过程中,在分析的大多数参数中,添加150% (CH5)稳定的废洗液导致最大营养浓度。CH5显示TOC、TKN、C/N、磷和钾的浓度分别为25.92±2.19%、2.16±0.29%、12.28±0.66、6.55±0.11%和15.90±1.37%。因此,可以得出结论,选定的微生物联合体能够分解压力污泥中的有机物。此外,稳定洗涤液的应用提高了最终产品的营养成分。
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引用次数: 2
Successful Mestrual Regularity and Spontaneous Pregnancies with a Resveratrol-Based Multivitamin Supplement in Women with Idiopathic Premature Ovarian Insufficiency 以白藜芦醇为基础的多种维生素补充剂对特发性卵巢功能不全妇女成功的月经规律和自然妊娠的影响
IF 1.7 Q3 MULTIDISCIPLINARY SCIENCES Pub Date : 2022-01-01 DOI: 10.2478/ebtj-2022-0005
M. Vignali
Abstract Premature ovarian insufficiency (POI) is a clinical syndrome defined by loss of ovarian activity before the age of 40 years and is characterized by menstrual disturbance, follicle stimulating hormone (FSH) concentration above 40 IU/l and infertility. In some patients the best option is to conceive spontaneously since many treatment strategies remain unsuccessful or involve eggs donation. In this case report series, we describe the effects of a resveratrol-based multivitamin supplement containing trans-resveratrol, folic acid, vitamin B6, B12 and D, in six women with poor prognosis of pregnancy due to POI and evaluate the achievement of desired conception. These women, aged less then 40 years, suffered from menstrual irregularities, anovulation and infertility. They all had normal karyotype, and no history of ovarian surgery, radiation exposure or chemotherapy. Blood test showed at least two values of FSH above 40 IU/l. Four out of six patients with POI conceived after 3-6 months of a resveratrol-based multivitamin supplement, ultimately giving birth to a full-term baby. Regular menstrual cycle was restored in all patients after two to four months the start of treatment. In conclusion the treatment with a resveratrol-based supplement improved menstrual regularity and suggest a useful potential of this supplementation in some cases of POI.
卵巢功能不全(POI)是指40岁前卵巢功能丧失,以月经紊乱、促卵泡激素(FSH)浓度高于40 IU/l、不孕症为特征的临床综合征。在一些患者中,最好的选择是自然受孕,因为许多治疗策略仍然不成功或涉及卵子捐赠。在这个病例报告系列中,我们描述了一种以白藜芦醇为基础的含有反式白藜芦醇、叶酸、维生素B6、B12和D的多种维生素补充剂对6名因POI导致妊娠预后不良的妇女的影响,并评估了预期受孕的实现。这些女性年龄在40岁以下,患有月经不规律、无排卵和不孕症。她们都有正常的核型,没有卵巢手术、放疗或化疗的历史。血液检查显示至少两项FSH值高于40 IU/l。6名POI患者中有4名在服用以白藜芦醇为基础的多种维生素补充剂3-6个月后怀孕,最终生下了足月婴儿。治疗开始2 ~ 4个月后,所有患者均恢复了正常的月经周期。总之,以白藜芦醇为基础的补充剂改善了月经规律,并表明这种补充剂在某些POI病例中具有有用的潜力。
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引用次数: 0
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 Q3 MULTIDISCIPLINARY 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 Q3 MULTIDISCIPLINARY 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 Q3 MULTIDISCIPLINARY 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 Q3 MULTIDISCIPLINARY 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 Q3 MULTIDISCIPLINARY 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 Q3 MULTIDISCIPLINARY 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
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The EuroBiotech Journal
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