首页 > 最新文献

Kuwait Journal of Science & Engineering最新文献

英文 中文
The combination of intermittent caloric restriction and moderate-intensity interval training in decreasing blood glucose and CRP levels with a high glycemic index diet 结合间歇性热量限制和中等强度间歇训练降低血糖和CRP水平与高血糖指数饮食
Pub Date : 2022-02-28 DOI: 10.48129/kjs.12365
Muchammad Rif’at Fawaid As’ad, G. Sari, Zulhabri Othman, L. Herawati
This study aims to analyze the effect of the combination of intermittent calorie restriction and moderate intensity interval training (MIIT) on serum c-reactive protein (CRP) levels as one of the inflammatory mediators and blood glucose levels in female mice exposed to a-high glycemic index diet. The sample of this study was female mice Balb/c strain, divided into four groups:, the control group (con), the intermittent calorie restriction group (restrict), the MIIT group (interv), and the combine group of intermittent calorie restriction and moderate-intensity interval training (restrict+interv). A high glycemic index diet was a high calorie and was provided by standard feed and oral gavage of 0.013 g/gBW glucosesolution. Intermittent calorie restriction was 50% reduction of the standard feed 3x/week. The MIIT was five-minute intervals of swimming and 30 seconds of passive rest consecutively for 30 minutes and 3x/week. Meanwhile, the treatment duration was four weeks. The oral glucose tolerance test consisting of fasting blood glucose (FBG) and a two-hour post -prandial (2HPP) blood glucose was measured before and after the treatment. CRP was examined only after the treatment. The restrict + interv group had a significant reduction in CRP levels compared to the restricted group (p = 0.005) and the interv group (p = 0.044). The FBG levels the restrict + interv group and restricted group had a significant decrease (p = 0.026). Moreover, 2HPP of the restrict + interv group and restricted group had a significant decline (p = 0.000). This study concludes that the combination of intermittent calorie restriction and moderate -intensity interval training can attenuate elevated serum CRP and blood glucose levels.
本研究旨在分析间歇性热量限制和中等强度间歇训练(MIIT)结合对暴露于高血糖指数饮食的雌性小鼠血清c-反应蛋白(CRP)水平和血糖水平的影响。本研究以Balb/c系雌性小鼠为样本,分为4组:对照组(con)、间歇热量限制组(restrict)、MIIT组(interv)、间歇热量限制与中强度间歇训练联合组(restrict+interv)。高血糖指数日粮是一种高热量的日粮,通过标准饲料和0.013 g/gBW葡萄糖溶液灌胃提供。间歇性热量限制比标准饲料减少50%,每周3次。MIIT是5分钟的间歇游泳和30秒的连续被动休息,每次30分钟,每周3次。同时,治疗时间为四周。在治疗前后分别测定空腹血糖(FBG)和餐后2小时血糖(2HPP)的口服葡萄糖耐量试验。仅在治疗后检测CRP。与限制组(p = 0.005)和干预组(p = 0.044)相比,限制+干预组的CRP水平显著降低。限制+干预组和限制组空腹血糖水平显著降低(p = 0.026)。此外,限制+干预组和限制组的2HPP显著下降(p = 0.000)。本研究得出结论,间歇性热量限制和中等强度间歇训练相结合可以降低血清CRP和血糖水平升高。
{"title":"The combination of intermittent caloric restriction and moderate-intensity interval training in decreasing blood glucose and CRP levels with a high glycemic index diet","authors":"Muchammad Rif’at Fawaid As’ad, G. Sari, Zulhabri Othman, L. Herawati","doi":"10.48129/kjs.12365","DOIUrl":"https://doi.org/10.48129/kjs.12365","url":null,"abstract":"This study aims to analyze the effect of the combination of intermittent calorie restriction and moderate intensity interval training (MIIT) on serum c-reactive protein (CRP) levels as one of the inflammatory mediators and blood glucose levels in female mice exposed to a-high glycemic index diet. The sample of this study was female mice Balb/c strain, divided into four groups:, the control group (con), the intermittent calorie restriction group (restrict), the MIIT group (interv), and the combine group of intermittent calorie restriction and moderate-intensity interval training (restrict+interv). A high glycemic index diet was a high calorie and was provided by standard feed and oral gavage of 0.013 g/gBW glucosesolution. Intermittent calorie restriction was 50% reduction of the standard feed 3x/week. The MIIT was five-minute intervals of swimming and 30 seconds of passive rest consecutively for 30 minutes and 3x/week. Meanwhile, the treatment duration was four weeks. The oral glucose tolerance test consisting of fasting blood glucose (FBG) and a two-hour post -prandial (2HPP) blood glucose was measured before and after the treatment. CRP was examined only after the treatment. The restrict + interv group had a significant reduction in CRP levels compared to the restricted group (p = 0.005) and the interv group (p = 0.044). The FBG levels the restrict + interv group and restricted group had a significant decrease (p = 0.026). Moreover, 2HPP of the restrict + interv group and restricted group had a significant decline (p = 0.000). This study concludes that the combination of intermittent calorie restriction and moderate -intensity interval training can attenuate elevated serum CRP and blood glucose levels.","PeriodicalId":49933,"journal":{"name":"Kuwait Journal of Science & Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89394365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Antioxidant, antimicrobial and anti-cancer properties of silver nanoparticles biosynthesized using artichoke waste extract 洋蓟废提取物生物合成纳米银的抗氧化、抗菌和抗癌性能
Pub Date : 2022-02-28 DOI: 10.48129/kjs.10012
G. El-Chaghaby, S. Rashad, Heba F. Eid
In the present work, a green method is proposed for biosynthesis of silver nanoparticles (AgNPs) using artichoke processing waste extract as reducing agent. The formation of AgNPs was spectrophotometrically detected by the appearance of maximum peak at 430 nm. Transmission electron microscopic results confirmed the formation of AgNPs with different shapes with average particle size (88.94 nm). Phytochemical and gas chromatography/ mass results indicated the presence of important compounds especially phenols and flavonoids in the artichoke waste extract. AgNPs biosynthesized using artichoke waste extract were tested to determine their potential antioxidant, antibacterial and anticancer activities. The results showed that AgNPs have high antioxidant capacity (179.93 mgGAE/ml) and potent free radical scavenging activity (45.94 %). The results also showed that AgNPs have significantly high antibacterial activity against Bacillus cereus, Staphylococcus aureus, Salmonella and Escherichia coli with inhibition zone dimeter 17, 21, 17 and 17 mm, respectively. AgNPs showed anticancer activity against breast cancer cell line with a decline in cells viability with increase of AgNPs concentration and IC50 (144.29μmole/ml). Based on these results and the benefits of phytochemicals detected in artichoke waste extract, this waste could be effectively used for silver nanoparticles preparation.
本文提出了一种以洋蓟加工废液为还原剂的绿色生物合成纳米银的方法。用分光光度法检测AgNPs的形成,在430 nm处出现最大峰。透射电镜结果证实形成了不同形状的AgNPs,平均粒径为88.94 nm。植物化学和气相色谱/质谱分析结果表明,洋蓟废提取物中存在重要的化合物,特别是酚类化合物和黄酮类化合物。以洋蓟废提取物为原料合成AgNPs,研究其潜在的抗氧化、抗菌和抗癌活性。结果表明,AgNPs具有较高的抗氧化能力(179.93 mgGAE/ml)和较强的自由基清除能力(45.94%)。结果还表明,AgNPs对蜡样芽孢杆菌、金黄色葡萄球菌、沙门氏菌和大肠杆菌具有显著的抑菌活性,抑菌带直径分别为17、21、17和17 mm。AgNPs对乳腺癌细胞株具有抗肿瘤活性,随着AgNPs浓度和IC50 (144.29μmol /ml)的增加,细胞活力下降。基于这些结果和在洋蓟废提取物中检测到的植物化学物质的益处,洋蓟废提取物可以有效地用于制备纳米银。
{"title":"Antioxidant, antimicrobial and anti-cancer properties of silver nanoparticles biosynthesized using artichoke waste extract","authors":"G. El-Chaghaby, S. Rashad, Heba F. Eid","doi":"10.48129/kjs.10012","DOIUrl":"https://doi.org/10.48129/kjs.10012","url":null,"abstract":"In the present work, a green method is proposed for biosynthesis of silver nanoparticles (AgNPs) using artichoke processing waste extract as reducing agent. The formation of AgNPs was spectrophotometrically detected by the appearance of maximum peak at 430 nm. Transmission electron microscopic results confirmed the formation of AgNPs with different shapes with average particle size (88.94 nm). Phytochemical and gas chromatography/ mass results indicated the presence of important compounds especially phenols and flavonoids in the artichoke waste extract. AgNPs biosynthesized using artichoke waste extract were tested to determine their potential antioxidant, antibacterial and anticancer activities. The results showed that AgNPs have high antioxidant capacity (179.93 mgGAE/ml) and potent free radical scavenging activity (45.94 %). The results also showed that AgNPs have significantly high antibacterial activity against Bacillus cereus, Staphylococcus aureus, Salmonella and Escherichia coli with inhibition zone dimeter 17, 21, 17 and 17 mm, respectively. AgNPs showed anticancer activity against breast cancer cell line with a decline in cells viability with increase of AgNPs concentration and IC50 (144.29μmole/ml). Based on these results and the benefits of phytochemicals detected in artichoke waste extract, this waste could be effectively used for silver nanoparticles preparation.","PeriodicalId":49933,"journal":{"name":"Kuwait Journal of Science & Engineering","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86498122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Modeling of Field Emission from Laser Etched Porous Silicon 激光蚀刻多孔硅的场发射模型
Pub Date : 2022-02-26 DOI: 10.48129/kjs.17069
Dehghanpour H.R
In many modern sciences, electron transfer is required, such as electron microscopes, microwaves, and screens. There have been numerous reports of the formation of microstructures on silicon surfaces using lasers in halogen-containing media and their optical, electrical and other physical properties. A silicon microstructured field emitter is modeled with Fowler-Nortium field diffusion theory, and the breakdown currents are consistent. Breakdown voltage, field gain coefficient, current and current density, and emitter region (in case of breakdown) are considered in the simulation. Comparison between simulation and experimental results shows that the microstructure has field emitter properties and can be used as a new field emitter.
在许多现代科学中,电子转移是必需的,如电子显微镜、微波和屏幕。已经有许多关于在含卤素介质中使用激光在硅表面形成微结构及其光学、电学和其他物理性质的报道。采用Fowler-Nortium场扩散理论建立了硅微结构场发射体模型,击穿电流是一致的。仿真中考虑了击穿电压、场增益系数、电流和电流密度以及击穿时的发射极区域。仿真结果与实验结果的比较表明,该微结构具有场发射特性,可以作为一种新型场发射体。
{"title":"Modeling of Field Emission from Laser Etched Porous Silicon","authors":"Dehghanpour H.R","doi":"10.48129/kjs.17069","DOIUrl":"https://doi.org/10.48129/kjs.17069","url":null,"abstract":"In many modern sciences, electron transfer is required, such as electron microscopes, microwaves, and screens. There have been numerous reports of the formation of microstructures on silicon surfaces using lasers in halogen-containing media and their optical, electrical and other physical properties. A silicon microstructured field emitter is modeled with Fowler-Nortium field diffusion theory, and the breakdown currents are consistent. Breakdown voltage, field gain coefficient, current and current density, and emitter region (in case of breakdown) are considered in the simulation. Comparison between simulation and experimental results shows that the microstructure has field emitter properties and can be used as a new field emitter.","PeriodicalId":49933,"journal":{"name":"Kuwait Journal of Science & Engineering","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87126594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Enhancement of Optical Chaos Generator using Double Delayed Feedback 利用双延迟反馈增强光混沌发生器
Pub Date : 2022-02-26 DOI: 10.48129/kjs.17025
R. I. Ibrahim
Chaotic lasers are widely used in secure communication, optical detection and other applications due to their noise-like randomness, excellent anti-jamming and other advantages. This research looks into the chaotic laser's performance at a low cost. The performance related to a semiconductor laser with double delayed feedback is observed and its characteristics are determined in experimental research utilizing OptiSystem simulator. The chaotic laser output is fed back to the Mach-Zehnder modulator (MZM) to make the original system. The gain coefficient changes dynamically, and a second time delay is introduced into the system. The feedback time and feedback strength of the improved chaotic system are studied under varying input bias current, frequency and modulation beak current. Bifurcation diagram results show that the chaotic laser output by the optoelectronic oscillator (OEO) is more complex and has lower delay characteristics. This method does not increase too much Under the premise of system cost, more complex chaotic signals can be generated, and the signal delay characteristics can be reduced, which is conducive to improving the security of the communication system.
混沌激光器由于具有类噪声随机性、优异的抗干扰性等优点,广泛应用于保密通信、光学检测等领域。本研究探讨了低成本混沌激光器的性能。利用OptiSystem仿真器对双延迟反馈半导体激光器的性能进行了观察,并确定了双延迟反馈半导体激光器的特性。混沌激光输出被反馈到马赫-曾德尔调制器(MZM),形成原始系统。增益系数动态变化,并在系统中引入二次延时。研究了不同输入偏置电流、频率和调制喙电流下改进混沌系统的反馈时间和反馈强度。分岔图结果表明,光电振荡器(OEO)输出的混沌激光更复杂,具有较低的延迟特性。这种方法在不增加太多系统成本的前提下,可以产生更复杂的混沌信号,并且可以降低信号的延迟特性,有利于提高通信系统的安全性。
{"title":"Enhancement of Optical Chaos Generator using Double Delayed Feedback","authors":"R. I. Ibrahim","doi":"10.48129/kjs.17025","DOIUrl":"https://doi.org/10.48129/kjs.17025","url":null,"abstract":"Chaotic lasers are widely used in secure communication, optical detection and other applications due to their noise-like randomness, excellent anti-jamming and other advantages. This research looks into the chaotic laser's performance at a low cost. The performance related to a semiconductor laser with double delayed feedback is observed and its characteristics are determined in experimental research utilizing OptiSystem simulator. The chaotic laser output is fed back to the Mach-Zehnder modulator (MZM) to make the original system. The gain coefficient changes dynamically, and a second time delay is introduced into the system. The feedback time and feedback strength of the improved chaotic system are studied under varying input bias current, frequency and modulation beak current. Bifurcation diagram results show that the chaotic laser output by the optoelectronic oscillator (OEO) is more complex and has lower delay characteristics. This method does not increase too much Under the premise of system cost, more complex chaotic signals can be generated, and the signal delay characteristics can be reduced, which is conducive to improving the security of the communication system.","PeriodicalId":49933,"journal":{"name":"Kuwait Journal of Science & Engineering","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83073210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
QoS based congestion evasion clustering framework of wireless sensor networks 基于QoS的无线传感器网络规避拥塞聚类框架
Pub Date : 2022-02-26 DOI: 10.48129/kjs.17331
Soumyabrata Saha, R. Chaki
Congestion is a significant issue for event-based applications due to the continuous data collection and transmission by the sensors constituting the network. The congestion control technique monitors the process of adjusting the data and intends to manage the network traffic level to the threshold value. The information gathered from an intensive study is required to strengthen the knowledge base for devising a QoS based congestion evasion clustering framework of wireless sensor networks. In this scheme, the cluster heads are optimally determined and dispersed over the network. The data aggregation approach has been applied in a clustered network and set out a crucial paradigm for WSN routing. The proposal employs to mitigate congestion while messages are being forwarded via an alternate route to distribute the traffic and increase the throughput. This technique aims to balance the energy ingestion among the sensor nodes, reduce energy consumption, improve network lifetime, and achieve the quality of services. The result analysis revealed that the proposed scheme recommends 22.5% better throughput, 21% lesser end-to-end delay, 25.5% better delivery ratio, and efficiently relieves congestion while preserving the network's performance for attaining QoS in wireless sensor networks.
对于基于事件的应用来说,拥塞是一个重要的问题,因为构成网络的传感器需要不断地收集和传输数据。拥塞控制技术监视数据调整的过程,旨在将网络流量水平管理到阈值。为了设计一个基于QoS的无线传感器网络规避拥塞聚类框架,需要从深入研究中收集到的信息来增强知识库。在这种方案中,簇头被最优地确定并分散在网络中。数据聚合方法已在集群网络中得到应用,为无线传感器网络的路由提供了一个重要的范例。该方案采用在消息通过备用路由转发时减轻拥塞的方法来分配流量并增加吞吐量。该技术旨在平衡传感器节点之间的能量摄取,降低能量消耗,提高网络寿命,实现服务质量。结果分析表明,该方案的吞吐量提高22.5%,端到端延迟降低21%,传输率提高25.5%,有效地缓解了拥塞,同时保持了无线传感器网络实现QoS的性能。
{"title":"QoS based congestion evasion clustering framework of wireless sensor networks","authors":"Soumyabrata Saha, R. Chaki","doi":"10.48129/kjs.17331","DOIUrl":"https://doi.org/10.48129/kjs.17331","url":null,"abstract":"Congestion is a significant issue for event-based applications due to the continuous data collection and transmission by the sensors constituting the network. The congestion control technique monitors the process of adjusting the data and intends to manage the network traffic level to the threshold value. The information gathered from an intensive study is required to strengthen the knowledge base for devising a QoS based congestion evasion clustering framework of wireless sensor networks. In this scheme, the cluster heads are optimally determined and dispersed over the network. The data aggregation approach has been applied in a clustered network and set out a crucial paradigm for WSN routing. The proposal employs to mitigate congestion while messages are being forwarded via an alternate route to distribute the traffic and increase the throughput. This technique aims to balance the energy ingestion among the sensor nodes, reduce energy consumption, improve network lifetime, and achieve the quality of services. The result analysis revealed that the proposed scheme recommends 22.5% better throughput, 21% lesser end-to-end delay, 25.5% better delivery ratio, and efficiently relieves congestion while preserving the network's performance for attaining QoS in wireless sensor networks.","PeriodicalId":49933,"journal":{"name":"Kuwait Journal of Science & Engineering","volume":"58 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78862451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Mass attenuation coefficient, stopping power, and penetrating distance calculations via Monte Carlo simulations for cell membranes 质量衰减系数,停止功率,并通过蒙特卡罗模拟细胞膜穿透距离计算
Pub Date : 2022-02-26 DOI: 10.48129/kjs.15657
Y. A. Üncü, Gençay Sevim, O. Agar, H. Özdoğan
The Monte Carlo (MC) method is a computer simulation that is widely used in different disciplines including physics, biology, biophysics, medical imaging, biomedical engineering, etc. In addition, MC method is often used to simulate the interaction of radiation with cells, tissues, and the environment. In the present study, mass attenuation coefficient, stopping power, and penetrating distance calculations were performed for cell membranes having an approximately 60-100Å thickness. These calculations have been done for lipid bilayer structure of cell membrane via MC techniques employing two of the most known computer-aided calculation and simulation software which are MC methods such as SRIM-2013 (The Stopping and Range of Ions in Matter) and MCNPv6 (Monte Carlo N-Particle) with XCOM software. Stopping power and penetrating distance calculations were obtained using SRIM-2013. Also, both XCOM software and MCNPv6 simulation code were used to obtain photon interaction parameters within the energy range of 0.01 – 10000keV. Obtained all results from different codes have been visualized by graphing for evaluation.
蒙特卡罗(MC)方法是一种广泛应用于物理学、生物学、生物物理学、医学成像、生物医学工程等学科的计算机模拟方法。此外,MC方法也常用于模拟辐射与细胞、组织和环境的相互作用。在本研究中,对厚度约为60-100Å的细胞膜进行了质量衰减系数、阻挡力和穿透距离的计算。这些计算是通过MC技术对细胞膜的脂质双层结构进行的,采用了两种最著名的计算机辅助计算和模拟软件,即SRIM-2013(物质中离子的停止和范围)和MCNPv6(蒙特卡罗n粒子)MC方法,并使用XCOM软件。利用SRIM-2013软件计算停止威力和穿透距离。利用XCOM软件和MCNPv6仿真代码,获得了0.01 ~ 10000keV能量范围内的光子相互作用参数。从不同的代码得到的所有结果已被可视化的图形,以供评估。
{"title":"Mass attenuation coefficient, stopping power, and penetrating distance calculations via Monte Carlo simulations for cell membranes","authors":"Y. A. Üncü, Gençay Sevim, O. Agar, H. Özdoğan","doi":"10.48129/kjs.15657","DOIUrl":"https://doi.org/10.48129/kjs.15657","url":null,"abstract":"The Monte Carlo (MC) method is a computer simulation that is widely used in different disciplines including physics, biology, biophysics, medical imaging, biomedical engineering, etc. In addition, MC method is often used to simulate the interaction of radiation with cells, tissues, and the environment. In the present study, mass attenuation coefficient, stopping power, and penetrating distance calculations were performed for cell membranes having an approximately 60-100Å thickness. These calculations have been done for lipid bilayer structure of cell membrane via MC techniques employing two of the most known computer-aided calculation and simulation software which are MC methods such as SRIM-2013 (The Stopping and Range of Ions in Matter) and MCNPv6 (Monte Carlo N-Particle) with XCOM software. Stopping power and penetrating distance calculations were obtained using SRIM-2013. Also, both XCOM software and MCNPv6 simulation code were used to obtain photon interaction parameters within the energy range of 0.01 – 10000keV. Obtained all results from different codes have been visualized by graphing for evaluation.","PeriodicalId":49933,"journal":{"name":"Kuwait Journal of Science & Engineering","volume":"43 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90776024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Involvement of miR-3648 mediated APC2 1 dysregulation in early onset and breast cancer progression miR-3648介导的APC2 1失调参与早期发病和乳腺癌进展
Pub Date : 2022-02-26 DOI: 10.48129/kjs.15891
M. Batool, J. Qadir, Misbah Shan, Feiya Li, F. A. Malik, H. M. Awan
Multiple cancers arise due to aberrations in the Wnt signaling pathway. Several miRNAs modulate the integral components of the wingless integrated (Wnt) signaling pathway. miR-3648 is a human-specific miRNAs that is of particular interest due to its minimal off-targeting effect. In this study, we investigated the expression of miR-3648 and APC2 in breast cancer patients of Pakistan. Correlations of miR-3648 and APC2 expression with clinico-pathological features and breast cancer subtypes were observed in tissue samples by means of quantitative real time PCR. Our results showed that miR-3648 was relatively downregulated in Luminal A subtype, with corresponding upregulation of APC2 in these patients. Moreover, the transcript levels of both miR-3648 and APC2 were found to be inversely regulated in breast cancer women presented with early disease onset, pre-menopause, low tumor grade, early clinical stage, absence of nodal invasion and metastasis, further suggesting the molecular interplay of these molecules in breast cancer development and progression.
多种癌症的发生是由于Wnt信号通路的畸变。几种mirna调节无翼集成(Wnt)信号通路的组成部分。miR-3648是一种人类特异性mirna,由于其最小的脱靶效应而引起特别关注。在本研究中,我们研究了miR-3648和APC2在巴基斯坦乳腺癌患者中的表达。采用实时荧光定量PCR方法观察组织样本中miR-3648和APC2表达与临床病理特征及乳腺癌亚型的相关性。我们的研究结果显示,miR-3648在Luminal A亚型中相对下调,APC2在这些患者中相应上调。此外,在发病早、绝经前、肿瘤分级低、临床分期早、无淋巴结侵袭和转移的乳腺癌女性中,miR-3648和APC2的转录水平均被发现呈负调控,进一步提示了这些分子在乳腺癌发生和进展中的分子相互作用。
{"title":"Involvement of miR-3648 mediated APC2 1 dysregulation in early onset and breast cancer progression","authors":"M. Batool, J. Qadir, Misbah Shan, Feiya Li, F. A. Malik, H. M. Awan","doi":"10.48129/kjs.15891","DOIUrl":"https://doi.org/10.48129/kjs.15891","url":null,"abstract":"Multiple cancers arise due to aberrations in the Wnt signaling pathway. Several miRNAs modulate the integral components of the wingless integrated (Wnt) signaling pathway. miR-3648 is a human-specific miRNAs that is of particular interest due to its minimal off-targeting effect. In this study, we investigated the expression of miR-3648 and APC2 in breast cancer patients of Pakistan. Correlations of miR-3648 and APC2 expression with clinico-pathological features and breast cancer subtypes were observed in tissue samples by means of quantitative real time PCR. Our results showed that miR-3648 was relatively downregulated in Luminal A subtype, with corresponding upregulation of APC2 in these patients. Moreover, the transcript levels of both miR-3648 and APC2 were found to be inversely regulated in breast cancer women presented with early disease onset, pre-menopause, low tumor grade, early clinical stage, absence of nodal invasion and metastasis, further suggesting the molecular interplay of these molecules in breast cancer development and progression.","PeriodicalId":49933,"journal":{"name":"Kuwait Journal of Science & Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90735318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Scattering of gamma radiation by air in the ambient environment using gamma ray spectrometry 用伽马射线能谱法研究环境中空气对伽马辐射的散射
Pub Date : 2022-02-26 DOI: 10.48129/kjs.17253
A. Mishra, R. Khanal
The intensity of gamma radiation reduces as it traverses through matter. The gamma radiation from earth’s surface is attenuated by non-radioactive burden between the ground and the detector. The relative intensity of unscattered to scattered gamma radiation by air in ambient atmosphere is measured using in-situ gamma spectrometric method. The air thickness up to 300 cm is used for studying attenuation of terrestrial gamma radiation. No significant attenuation is measured up to 100 cm thickness of air between the detector and the ground. The attenuation by air is found to increase with increasing thickness of air. Also, the attenuation of terrestrial gamma radionuclides (40K) is found higher than 238U and 232Th as 40K has lower energy compared to them.
伽马辐射的强度在穿过物质时减弱。来自地球表面的伽马辐射被地面和探测器之间的非放射性负荷所衰减。采用原位伽马能谱法测量了大气中空气的非散射与散射伽马辐射的相对强度。300厘米以下的空气厚度被用来研究地面伽马辐射的衰减。在探测器和地面之间100厘米厚的空气中没有测量到明显的衰减。空气作用下的衰减随空气厚度的增加而增加。此外,40K的衰减比238U和232Th高,因为40K的能量比它们低。
{"title":"Scattering of gamma radiation by air in the ambient environment using gamma ray spectrometry","authors":"A. Mishra, R. Khanal","doi":"10.48129/kjs.17253","DOIUrl":"https://doi.org/10.48129/kjs.17253","url":null,"abstract":"The intensity of gamma radiation reduces as it traverses through matter. The gamma radiation from earth’s surface is attenuated by non-radioactive burden between the ground and the detector. The relative intensity of unscattered to scattered gamma radiation by air in ambient atmosphere is measured using in-situ gamma spectrometric method. The air thickness up to 300 cm is used for studying attenuation of terrestrial gamma radiation. No significant attenuation is measured up to 100 cm thickness of air between the detector and the ground. The attenuation by air is found to increase with increasing thickness of air. Also, the attenuation of terrestrial gamma radionuclides (40K) is found higher than 238U and 232Th as 40K has lower energy compared to them.","PeriodicalId":49933,"journal":{"name":"Kuwait Journal of Science & Engineering","volume":"42 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88195636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigation of V2O5-ZnAl2O4 Composite Nanoparticles for C-band Microstrip Patch Antenna Applications c波段微带贴片天线中V2O5-ZnAl2O4复合纳米颗粒的研究
Pub Date : 2022-02-26 DOI: 10.48129/kjs.17783
Srilali Siragam, R. S. Dubey, L. Pappula
This paper reports the prototype fabrication and characterization of microstrip patch antenna using the sol-gel derived composite nanoparticles of vanadium pentoxide oxide (V2O5) and zinc aluminate (ZnAl2O4). The prepared composite nanoparticles were characterized using X-ray diffraction (XRD), which exhibited the dominant peaks of ZnAl2O4 and V2O5. The crystallite size of the nanoparticles was estimated to be 16 nm. The sample was also studied using the Fourier transform infrared spectroscopy (FTIR), field-emission scanning electron microscopy (FESEM), and energy dispersive spectroscopy (EDS) to examine the functional groups morphology and elemental composition present in the composite nanoparticles. Further, these nanoparticles were employed in fabricating the prototype microstrip patch antenna to evaluate its characteristics. The fabricated antenna showed its return loss of -17.13 dB at a resonant frequency of 4.64 GHz.
采用溶胶-凝胶法制备了五氧化二钒(V2O5)和铝酸锌(ZnAl2O4)复合纳米粒子,制备了微带贴片天线。利用x射线衍射(XRD)对所制备的复合纳米粒子进行了表征,其优势峰为ZnAl2O4和V2O5。纳米颗粒的晶粒尺寸估计为16 nm。利用傅里叶变换红外光谱(FTIR)、场发射扫描电子显微镜(FESEM)和能量色散光谱(EDS)对样品进行了研究,以检查复合纳米颗粒中存在的官能团形态和元素组成。并将这些纳米粒子应用于微带贴片天线原型的制作中,对其性能进行了评价。在4.64 GHz谐振频率下,天线回波损耗为-17.13 dB。
{"title":"Investigation of V2O5-ZnAl2O4 Composite Nanoparticles for C-band Microstrip Patch Antenna Applications","authors":"Srilali Siragam, R. S. Dubey, L. Pappula","doi":"10.48129/kjs.17783","DOIUrl":"https://doi.org/10.48129/kjs.17783","url":null,"abstract":"This paper reports the prototype fabrication and characterization of microstrip patch antenna using the sol-gel derived composite nanoparticles of vanadium pentoxide oxide (V2O5) and zinc aluminate (ZnAl2O4). The prepared composite nanoparticles were characterized using X-ray diffraction (XRD), which exhibited the dominant peaks of ZnAl2O4 and V2O5. The crystallite size of the nanoparticles was estimated to be 16 nm. The sample was also studied using the Fourier transform infrared spectroscopy (FTIR), field-emission scanning electron microscopy (FESEM), and energy dispersive spectroscopy (EDS) to examine the functional groups morphology and elemental composition present in the composite nanoparticles. Further, these nanoparticles were employed in fabricating the prototype microstrip patch antenna to evaluate its characteristics. The fabricated antenna showed its return loss of -17.13 dB at a resonant frequency of 4.64 GHz.","PeriodicalId":49933,"journal":{"name":"Kuwait Journal of Science & Engineering","volume":"47 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83619238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigation of Terminalia arjuna as potential IL-4 and IL-13 modulator for the prevention of autoimmune diabetes: A Pharmacoinformatics based study 基于药物信息学的研究:终叶作为预防自身免疫性糖尿病的潜在IL-4和IL-13调节剂
Pub Date : 2022-02-26 DOI: 10.48129/kjs.17337
A. Unnisa, Saheem Ahmad, S. Jandrajupalli, K. Younes, S. Abobaker, S. Chandolu, M. Khalid, Lakshmi Sudeepthi N
Cytokines are proteins that play a critical role in the development, maturation, and functional activities of immune cells. For the first time, we have investigated the potential role of Terminalia arjuna as IL-4 and IL-13 modulators for preventing T1DM, i.e., autoimmune diabetes. It has been well documented that the stimulation of IL-4 and IL-13 can regulate the level of type 2 cytokines which can be maintained with the level of type 1 cytokines. In the present study, gallic acid, arjunolic acid, luteolin, ellagic acid, and arjunone were investigated for their potential modulating activity of IL-4 and IL-13. The active amino acid residues identified for IL-4 are VAL51, HIS58, ASP87, THR30, GLN54, THR63, ARG64, LYS84, and GLU60. The active amino acid residues identified for IL-13 are H: GLU46, H: TRP47, H: GLN61, L: PHE98, L: VAL97, L: GLU162, L: THR163, H: ARG105, L: GLN38, L: ASP85, H: GLY42, L: GLY41, H: PRO41, H: TRP47, and L: PHE98. The phytoconstituents demonstrated better modulating activity towards IL-13 than IL-4. Luteolin displayed better potential for both IL-4 and IL-13, and therefore we concluded that it could be used to modulate the activity of IL-4 and IL-13 for the prevention of autoimmune diabetes.
细胞因子是在免疫细胞的发育、成熟和功能活动中起关键作用的蛋白质。我们首次研究了终叶作为IL-4和IL-13调节剂预防T1DM(即自身免疫性糖尿病)的潜在作用。已有文献表明,刺激IL-4和IL-13可以调节2型细胞因子的水平,并与1型细胞因子的水平保持一致。本研究研究了没食子酸、arjunolic酸、木犀草素、鞣花酸和arjunone对IL-4和IL-13的潜在调节活性。鉴定出IL-4的活性氨基酸残基为VAL51、HIS58、ASP87、THR30、GLN54、THR63、ARG64、LYS84和GLU60。鉴定出IL-13的活性氨基酸残基为H: GLU46、H: TRP47、H: GLN61、L: PHE98、L: VAL97、L: GLU162、L: THR163、H: ARG105、L: GLN38、L: ASP85、H: GLY42、L: GLY41、H: PRO41、H: TRP47和L: PHE98。植物成分对IL-13的调节作用优于IL-4。木犀草素对IL-4和IL-13均有较好的抑制作用,因此我们认为木犀草素可以通过调节IL-4和IL-13的活性来预防自身免疫性糖尿病。
{"title":"Investigation of Terminalia arjuna as potential IL-4 and IL-13 modulator for the prevention of autoimmune diabetes: A Pharmacoinformatics based study","authors":"A. Unnisa, Saheem Ahmad, S. Jandrajupalli, K. Younes, S. Abobaker, S. Chandolu, M. Khalid, Lakshmi Sudeepthi N","doi":"10.48129/kjs.17337","DOIUrl":"https://doi.org/10.48129/kjs.17337","url":null,"abstract":"Cytokines are proteins that play a critical role in the development, maturation, and functional activities of immune cells. For the first time, we have investigated the potential role of Terminalia arjuna as IL-4 and IL-13 modulators for preventing T1DM, i.e., autoimmune diabetes. It has been well documented that the stimulation of IL-4 and IL-13 can regulate the level of type 2 cytokines which can be maintained with the level of type 1 cytokines. In the present study, gallic acid, arjunolic acid, luteolin, ellagic acid, and arjunone were investigated for their potential modulating activity of IL-4 and IL-13. The active amino acid residues identified for IL-4 are VAL51, HIS58, ASP87, THR30, GLN54, THR63, ARG64, LYS84, and GLU60. The active amino acid residues identified for IL-13 are H: GLU46, H: TRP47, H: GLN61, L: PHE98, L: VAL97, L: GLU162, L: THR163, H: ARG105, L: GLN38, L: ASP85, H: GLY42, L: GLY41, H: PRO41, H: TRP47, and L: PHE98. The phytoconstituents demonstrated better modulating activity towards IL-13 than IL-4. Luteolin displayed better potential for both IL-4 and IL-13, and therefore we concluded that it could be used to modulate the activity of IL-4 and IL-13 for the prevention of autoimmune diabetes.","PeriodicalId":49933,"journal":{"name":"Kuwait Journal of Science & Engineering","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89526977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
Kuwait Journal of Science & Engineering
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1