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The influence of pathological conditions on vocal cord’s displacement: A numerical method and data analysis 病理条件对声带位移的影响:数值方法和数据分析
IF 3.7 3区 综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES Pub Date : 2024-11-16 DOI: 10.1016/j.jksus.2024.103545
Nur Fatin Amirah Mohd Rodzi , Shazalina Mat Zin , Syatirah Mat Zin
In this study, one-mass model of vocal cord is solved by using cubic trigonometric B-spline (CTBS) in order to generate displacements of healthy and pathological vocal cord. By utilizing CTBS, this work aims to investigate the relationship between five vocal cord conditions and its displacements generation throughout phonation process. The approximate displacements derived from CTBS are then compared to displacement generated by ode45 built-in solver through MATLAB software. The errors from both methods are then calculated which represented the effectiveness of the CTBS method in generating vocal cord displacements. Any discrepancies between the results generated by using CTBS and ode45 can be analysed to prove the reliability of CTBS method. Besides, an error analysis is demonstrated in order to quantitatively evaluate the accuracy of the approximate solutions. The generated approximate displacements of CTBS have shown to be approximately close to ode45 results. Thus, it can be concluded that CTBS is a reliable numerical method. The relationship between vocal cord conditions and its generated displacements has represented the distinction between healthy and pathological vocal cord outcomes. Healthy vocal cord has generated a steady decline displacements value while vocal cords with pathological condition have generated fluctuated displacement values throughout the phases of phonation process. The fluctuation trend of displacements value has revealed the irregular displacements value generation which is one of pathological vocal cord feature caused by low stiffness.
本研究利用立方三角 B 样条(CTBS)求解声带单质量模型,以生成健康和病理声带的位移。通过利用 CTBS,本研究旨在探讨在整个发音过程中,五种声带状况与声带位移生成之间的关系。然后将 CTBS 得出的近似位移与 ode45 内置求解器通过 MATLAB 软件生成的位移进行比较。然后计算出两种方法的误差,以表示 CTBS 方法在生成声带位移方面的有效性。通过分析 CTBS 和 ode45 生成的结果之间的差异,可以证明 CTBS 方法的可靠性。此外,为了定量评估近似解的准确性,还演示了误差分析。CTBS 生成的近似位移与 ode45 的结果大致接近。因此,可以认为 CTBS 是一种可靠的数值方法。声带状况与其产生的位移之间的关系代表了健康声带和病理声带的区别。健康声带产生的位移值呈稳定下降趋势,而病理声带在整个发音过程中产生的位移值呈波动趋势。从位移值的波动趋势可以看出,位移值的产生是不规则的,这也是低硬度导致的病理声带特征之一。
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引用次数: 0
HSPiP and quality by design aided optimized bioanalytical method development for amphotericin B quantification from plasma samples HSPiP 和质量设计辅助优化生物分析方法的开发,用于从血浆样品中定量检测两性霉素 B
IF 3.7 3区 综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES Pub Date : 2024-11-16 DOI: 10.1016/j.jksus.2024.103546
Mohhammad Ramzan , Tasneem Khan , Arusha Ayub , Mudassar Shahid
Amphotericin-b (AmB) is a broad-spectrum polyene macrolide antifungal and anti-Leishmaniosis. We addressed HSPiP and QbD (quality by design) oriented HPLC (high-performance liquid chromatography) method development and validation, followed by identifying critical attributes on retention time (RT) and peak area (PA). Various quality control parameters were estimated, such as the LLOQ (lower limit of quantification) and LLOD (lower limit of detection). HSPiP and experimental solubility data were the best fit in the prediction. QbD identified acetic acid (AA) pH, column temperature, and flow rate as the prime factors having an impact on PA and RT. The optimized mobile phase included AA, acetonitrile, and methanol (05:85:10) at pH 5 fluxed into the column maintained at 30 °C. The method was sensitive, as evidenced by the low values of LLOQ (1.6 ng/mL) and LLOD (10 ng/mL) and high recovery from the plasma. The method determined pharmacokinetic parameters from the rat plasma with high accuracy, precision, robustness, sensitivity, and reproducibility.
两性霉素-b(AmB)是一种广谱多烯类大环内酯抗真菌药,可抗利什曼病。我们研究了以 HSPiP 和 QbD(质量源于设计)为导向的 HPLC(高效液相色谱)方法开发和验证,然后确定了保留时间(RT)和峰面积(PA)的关键属性。估算了各种质量控制参数,如 LLOQ(定量下限)和 LLOD(检测下限)。HSPiP 和实验溶解度数据是预测的最佳拟合数据。QbD 确定醋酸 (AA) pH 值、色谱柱温度和流速是影响 PA 和 RT 的主要因素。优化后的流动相包括 AA、乙腈和甲醇(05:85:10),pH 值为 5,色谱柱温度为 30 °C。该方法灵敏度高,LLOQ(1.6 ng/mL)和LLOD(10 ng/mL)值低,血浆回收率高。该方法测定了大鼠血浆中的药代动力学参数,具有较高的准确度、精密度、稳健性、灵敏度和重现性。
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引用次数: 0
Annealing effects on bio-fabricated nickel oxide nanoparticles for environmental remediation: Photocatalytic dye degradation and antimicrobial activity 用于环境修复的生物制造氧化镍纳米粒子的退火效应:光催化染料降解和抗菌活性
IF 3.7 3区 综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES Pub Date : 2024-11-16 DOI: 10.1016/j.jksus.2024.103543
Monisha Ganesan , Ambrose Rejo Jeice , Prammitha Rajaram
The work aims to generate highly active NiO nanoparticles (NPs) using a green method that uses Annona Reticulata leaf extract. This strategy affects the variance in annealing calefactions, hence mitigating the issue of aqua pollution. X-ray diffraction (XRD), UV–vis spectroscopy, Fourier transform infrared (FT-IR), Scanning electron microscopy (SEM), Energy dispersive X-ray (EDAX), TGDTA and adsorption–desorption isotherm are used to characterize produced NiO NPs. The phase structure as cubic of prepared specimens was observed to vary between 300 and 700 °C, according to the XRD pattern. From the UV–Vis absorbance spectra, bandgap determination of NiO NPs found in the 3.6–4 eV range. Nanoplatelets-shaped morphology with 43–47 nm particle size was determined using SEM snapshots. The destruction of organic contaminants, such as Crystal Violet (90.37 %) and Malachite green (93.33 %), was achieved in 120 min under UV light irradiation. To examine the zone of inhibition (ZOI) of the antimicrobial activity of green-produced NiO NPs against Serratia marcescens (19.2 mm), Bacillus cereus (19 mm), and Aspergillus niger (22.3 mm), experiments were conducted, and the efficiency was in the order of NiO(300 °C) > NiO(700 °C) > NiO(500 °C). There was strong photocatalytic degradation and antibacterial activity when the sample was calcined at 300 °C. Therefore, wastewater and biomedical treatment could potentially benefit from its use.
这项工作的目的是利用一种绿色方法生成高活性的氧化镍纳米粒子(NPs),该方法使用了网纹花茴香(Annona Reticulata)叶提取物。这一策略影响了退火煅烧的差异,从而减轻了水污染问题。X 射线衍射 (XRD)、紫外-可见光谱、傅立叶变换红外光谱 (FT-IR)、扫描电子显微镜 (SEM)、能量色散 X 射线 (EDAX)、TGDTA 和吸附-解吸等温线用于表征制备的氧化镍纳米粒子。根据 XRD 图谱,制备的试样在 300 至 700 °C之间的相结构为立方体。从紫外-可见吸收光谱中可以确定,NiO NPs 的带隙在 3.6-4 eV 范围内。利用扫描电镜快照确定了纳米颗粒的形态,粒径为 43-47 nm。在紫外光照射下,120 分钟内就能破坏有机污染物,如水晶紫(90.37%)和孔雀石绿(93.33%)。为了检测绿色制备的 NiO NPs 对 Serratia marcescens(19.2 mm)、Bacillus cereus(19 mm)和 Aspergillus niger(22.3 mm)的抗菌活性抑制区(ZOI),进行了实验,其效率依次为 NiO(300 °C) > NiO(700 °C) > NiO(500 °C) 。样品在 300 °C 煅烧时具有很强的光催化降解和抗菌活性。因此,废水处理和生物医学处理可能会从中受益。
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引用次数: 0
Application of the new edge filters of aeromagnetic data to detect the subsurface structural elements controlling the mineralization in the Barramiya area, Eastern Desert of Egypt 应用航磁数据的新边缘滤波器探测控制埃及东部沙漠 Barramiya 地区矿化的地下结构要素
IF 3.7 3区 综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES Pub Date : 2024-11-15 DOI: 10.1016/j.jksus.2024.103539
Mohamed Abdelrady , Luan Thanh Pham , Ahmed Mohamed , Saad S. Alarifi , Van Hao Duong , Musaab A.A. Mohammed
The Barramiya region holds significant importance within the Mubarak-Hamash block because of its substantial gold mining activities. The primary aim of this research is to locate the structural framework of Barramiya, a subject that has not been previously investigated. This will have an impact on the mineralization in the area. To address this issue, we have employed various analytical techniques, namely the theta (TM), tilt angle of the gradient amplitude (TAHG), second normalized gradient amplitude (STDX), gradient amplitude of NTilt (THGNTilt), logistic function of the gradient amplitude (LTHG), and gradient amplitude-based edge detection (THGED). These techniques have been applied to aeromagnetic data with the purpose of delineating the structural features of the studied region. The depth of structures in the area has also been determined through the utilization of the tilt angle-based approach. The majority of magnetic sources in the region exhibit a depth that is less than 500 m. The findings obtained in this study indicate that the edge detection filters utilized in this research can simultaneously detect the boundaries of buried geological bodies with different depths. The findings additionally indicate that the N-S, NE-SW, and NW-SE directions have significant influence and control on mineralization in the Barramiya region.
巴拉米亚地区在穆巴拉克-哈马什区块内具有重要意义,因为这里有大量的金矿开采活动。这项研究的主要目的是确定 Barramiya 的结构框架,这是一个以前从未调查过的课题。这将对该地区的矿化产生影响。为解决这一问题,我们采用了多种分析技术,即 Theta (TM)、梯度振幅倾斜角 (TAHG)、二次归一化梯度振幅 (STDX)、NTilt 梯度振幅 (THGNTilt)、梯度振幅对数函数 (LTHG) 和基于梯度振幅的边缘检测 (THGED)。这些技术已被应用于航磁数据,目的是划定所研究区域的结构特征。此外,还利用基于倾斜角的方法确定了该地区结构的深度。本研究的结果表明,本研究使用的边缘检测滤波器可同时检测不同深度的地质埋藏体的边界。研究结果还表明,N-S、NE-SW 和 NW-SE 方向对 Barramiya 地区的矿化具有重大影响和控制作用。
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引用次数: 0
Facile synthesis of cerium doped Co-Mn-FeO nano ferrites as highly sensitive and fast response humidity sensors at room temperature 在室温下轻松合成掺铈 Co-Mn-FeO 纳米铁氧体作为高灵敏度和快速响应湿度传感器
IF 3.7 3区 综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES Pub Date : 2024-11-14 DOI: 10.1016/j.jksus.2024.103537
S.A. Al-Ghamdi
Herein, this work presents the facile synthesis of Cerium (Ce3+) doped Cobalt-manganese-iron oxide ferrite as an effective humidity sensor operated at ambient temperature. This work reports, one step solution combustion technique to synthesize Co0.5Mn0.5Fe2−xCexO4 (x = 0.0, 0.050 and 0.1) ferrites. The structural and morphological features of the synthesized Co0.5Mn0.5Fe2−xCexO4 ferrites NPs were investigated through scanning electron microscope (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and ultraviolet visible (UV–visible) spectroscopy. The XRD results indicates the creation of single phase in pure Co0.5Mn0.5Fe2−xCexO4 ferrite that remains unchanged by the mechanism of Ce3+inclusion. The humidity sensing mechanism was systematically investigated using adsorption–desorption isotherms. Highest humidity sensing response was achieved for Co0.5Mn0.5Fe2−xCexO4 (x = 0.1) ferrite of the order of 98 % in comparison to the pure Co0.5Mn0.5Fe2−xCexO4 (x = 0) which is about 41 %. The sensors response and recovery times for the Co0.5Mn0.5Fe2−xCexO4 (x = 0.1) was recorded to be 36 s and 63 s respectively and the sensors long term stability was examined for a duration of 90 days. The results of the present investigation offer new dimensions to fabricate high performance, room temperature operable humidity sensors for next generation sensors applications.
本文介绍了掺杂铈(Ce3+)的钴-锰-氧化铁铁氧体的简便合成方法,这种铁氧体是一种可在环境温度下工作的有效湿度传感器。本研究采用一步溶液燃烧技术合成了 Co0.5Mn0.5Fe2-xCexO4(x = 0.0、0.050 和 0.1)铁氧体。通过扫描电子显微镜(SEM)、X 射线衍射(XRD)、傅立叶变换红外光谱(FTIR)和紫外可见光谱(UV-visible)研究了合成的 Co0.5Mn0.5Fe2-xCexO4 铁氧体 NPs 的结构和形态特征。X 射线衍射结果表明,在纯 Co0.5Mn0.5Fe2-xCexO4 铁氧体中形成了单相,而在 Ce3+ 加入的机制下,单相保持不变。利用吸附-解吸等温线系统地研究了湿度感应机制。与纯 Co0.5Mn0.5Fe2-xCexO4(x = 0)的湿度传感响应约为 41%相比,Co0.5Mn0.5Fe2-xCexO4(x = 0)铁氧体的湿度传感响应最高,达到 98%。据记录,Co0.5Mn0.5Fe2-xCexO4(x = 0.1)传感器的响应和恢复时间分别为 36 秒和 63 秒,传感器的长期稳定性测试持续了 90 天。本研究的结果为下一代传感器应用提供了制造高性能、可在室温下操作的湿度传感器的新视角。
{"title":"Facile synthesis of cerium doped Co-Mn-FeO nano ferrites as highly sensitive and fast response humidity sensors at room temperature","authors":"S.A. Al-Ghamdi","doi":"10.1016/j.jksus.2024.103537","DOIUrl":"10.1016/j.jksus.2024.103537","url":null,"abstract":"<div><div>Herein, this work presents the facile synthesis of Cerium (Ce<sup>3+</sup>) doped Cobalt-manganese-iron oxide ferrite as an effective humidity sensor operated at ambient temperature. This work reports, one step solution combustion technique to synthesize Co<sub>0.5</sub>Mn<sub>0.5</sub>Fe<sub>2−x</sub>Ce<sub>x</sub>O<sub>4</sub> (x = 0.0, 0.050 and 0.1) ferrites. The structural and morphological features of the synthesized Co<sub>0.5</sub>Mn<sub>0.5</sub>Fe<sub>2−x</sub>Ce<sub>x</sub>O<sub>4</sub> ferrites NPs were investigated through scanning electron microscope (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and ultraviolet visible (UV–visible) spectroscopy. The XRD results indicates the creation of single phase in pure Co<sub>0.5</sub>Mn<sub>0.5</sub>Fe<sub>2−x</sub>Ce<sub>x</sub>O<sub>4</sub> ferrite that remains unchanged by the mechanism of Ce<sup>3+</sup>inclusion. The humidity sensing mechanism was systematically investigated using adsorption–desorption isotherms. Highest humidity sensing response was achieved for Co<sub>0.5</sub>Mn<sub>0.5</sub>Fe<sub>2−x</sub>Ce<sub>x</sub>O<sub>4</sub> (x = 0.1) ferrite of the order of 98 % in comparison to the pure Co<sub>0.5</sub>Mn<sub>0.5</sub>Fe<sub>2−x</sub>Ce<sub>x</sub>O<sub>4</sub> (x = 0) which is about 41 %. The sensors response and recovery times for the Co<sub>0.5</sub>Mn<sub>0.5</sub>Fe<sub>2−x</sub>Ce<sub>x</sub>O<sub>4</sub> (x = 0.1) was recorded to be 36 s and 63 s respectively and the sensors long term stability was examined for a duration of 90 days. The results of the present investigation offer new dimensions to fabricate high performance, room temperature operable humidity sensors for next generation sensors applications.</div></div>","PeriodicalId":16205,"journal":{"name":"Journal of King Saud University - Science","volume":"36 11","pages":"Article 103537"},"PeriodicalIF":3.7,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142658915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Prevalence and antibiogram pattern of multidrug-resistant Staphylococcus aureus infections in individuals with sickle cell disease. A retrospective study, hematological and genetic analysis 镰状细胞病患者耐多药金黄色葡萄球菌感染的流行率和抗生素图谱模式。回顾性研究、血液学和遗传学分析
IF 3.7 3区 综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES Pub Date : 2024-11-14 DOI: 10.1016/j.jksus.2024.103542
Adel A. Abdulmanea , Naiyf S. Alharbi , Ali M. Somily , Osamah T. Khojah , Mohamed A. Farrag , Ahmed S. Alobaidi , Jamal M. Khaled
<div><div>The prevalence of <em>Staphylococcus aureus</em> in the circulation (bacteremia) of individuals with sickle cell disease (SCD) may provide a substantial risk for illness and death. Strains of <em>S. aureus</em> exhibit a wide variety of virulence traits, including the ability to generate various toxins and develop treatment resistance. MRSA is characterized by its resistance to a range of beta-lactam antibiotics. This study’s objectives included assessing the frequency of <em>S. aureus</em> infection in SCA patients, analyzing laboratory markers of the CBC test, examining the antibiotic susceptibility pattern, and investigating the <em>mecA</em> gene and heteroresistance, which could potentially link to a higher occurrence of <em>S. aureus</em> infection in SCA patients. The retrospective study was done to gather clinical data on individuals with sickle cell anemia (SCA) who had bloodstream infections. From 2017 to 2021, blood samples and data were gathered by King Saud University Medical City (KSUMC) in Riyadh, Saudi Arabia. The <em>S. aureus</em> strains were re-cultivation, Vitek system and PCR techniques were employed to ascertain the antibiotic resistance patterns. It was confirmed that 2406 patients with SCD had contracted an infection. A total of 138 (5.73 %) patients with SCD were diagnosed with bacteremia. “Of the 138 strains isolated, the MRSA strain revealed as the most prevailing, including 30 isolates (21.7 %), whereas non-MRSA strains constituted 17 isolates (12.3 %).” Males had a higher rate of infection compared to females. The results indicated that all the <em>S. aureus</em> isolates exhibited resistance to ampicillin, while the resistance to penicillin was 98 %. Furthermore, the results indicated that over 65 % of the isolates exhibited resistance to amoxicillin, amoxicillin, cefazolin, imipenem, and oxacillin. The <em>mecA</em> gene was identified in all <em>S. aureus</em> strains obtained from patients with SCD. The current study recognizes the PCR assay as a more dependable technique for assessing antibiotic resistances, in contrast to the Vitek method. A study found strong links between <em>S. aureus</em> infections in individuals with SCD and three different factors: hemoglobin (Hb) level, mean corpuscular volume (RDW), and white blood cell (WBC) count (p < 0.004, 0.005, and 0.02, respectively). The study revealed that 34 % of the <em>S. aureus</em> strains that were examined exhibited heteroresistance to the <em>mecA</em> gene as well as resistance to oxacillin. The results clearly demonstrated that Ampicillin, Penicillin, amoxicillin, cefazolin, imipenem, and oxacillin are unsuitable choices for the treatment of blood infections in individuals with SCD. “The findings of this study confirmed that all <em>S. aureus</em> isolates were sensitive to gentamicin, and more than 80 % of the isolates were sensitive to ciprofloxacin, moxifloxacin, levofloxacin, clindamycin, and vancomycin.” Further investigation is nec
镰状细胞病(SCD)患者血液循环(菌血症)中普遍存在的金黄色葡萄球菌可能会带来巨大的疾病和死亡风险。金黄色葡萄球菌菌株表现出多种毒力特征,包括产生各种毒素和产生耐药性的能力。MRSA 的特点是对β-内酰胺类抗生素具有耐药性。本研究的目标包括评估 SCA 患者感染金黄色葡萄球菌的频率、分析 CBC 检验的实验室指标、检查抗生素敏感性模式、调查 mecA 基因和异抗性,这可能与 SCA 患者感染金黄色葡萄球菌的发生率较高有关。这项回顾性研究旨在收集镰状细胞性贫血(SCA)患者发生血流感染的临床数据。从 2017 年到 2021 年,沙特阿拉伯利雅得的沙特国王大学医疗城(KSUMC)收集了血液样本和数据。通过重新培养金黄色葡萄球菌菌株、Vitek 系统和 PCR 技术来确定抗生素耐药性模式。经证实,2406 名 SCD 患者感染了金黄色葡萄球菌。共有 138 名(5.73%)SCD 患者被诊断为菌血症。"在分离出的138株菌株中,MRSA菌株最多,包括30株(21.7%),而非MRSA菌株占17株(12.3%)"。男性的感染率高于女性。结果表明,所有分离出的金黄色葡萄球菌都对氨苄西林有抗药性,而对青霉素的抗药性为 98%。此外,结果表明,超过 65% 的分离菌株对阿莫西林、阿莫西林、头孢唑啉、亚胺培南和奥沙西林具有耐药性。在从 SCD 患者体内获得的所有金黄色葡萄球菌菌株中都发现了 mecA 基因。与 Vitek 方法相比,目前的研究认为 PCR 检测是一种更可靠的抗生素耐药性评估技术。一项研究发现,SCD 患者的金黄色葡萄球菌感染与血红蛋白 (Hb) 水平、平均血球容积 (RDW) 和白细胞 (WBC) 计数这三个不同因素之间存在密切联系(p 分别为 0.004、0.005 和 0.02)。研究显示,34% 的金黄色葡萄球菌菌株对 mecA 基因表现出异抗性,并对奥沙西林产生抗药性。研究结果清楚地表明,氨苄西林、青霉素、阿莫西林、头孢唑啉、亚胺培南和奥沙西林都不适合用于治疗 SCD 患者的血液感染。"本研究结果证实,所有金黄色葡萄球菌分离株都对庆大霉素敏感,80%以上的分离株对环丙沙星、莫西沙星、左氧氟沙星、克林霉素和万古霉素敏感"。"有必要进行进一步调查,以探究增加 SCD 患者对金黄色葡萄球菌耐抗生素菌株引起的菌血症敏感性的潜在因素。
{"title":"Prevalence and antibiogram pattern of multidrug-resistant Staphylococcus aureus infections in individuals with sickle cell disease. A retrospective study, hematological and genetic analysis","authors":"Adel A. Abdulmanea ,&nbsp;Naiyf S. Alharbi ,&nbsp;Ali M. Somily ,&nbsp;Osamah T. Khojah ,&nbsp;Mohamed A. Farrag ,&nbsp;Ahmed S. Alobaidi ,&nbsp;Jamal M. Khaled","doi":"10.1016/j.jksus.2024.103542","DOIUrl":"10.1016/j.jksus.2024.103542","url":null,"abstract":"&lt;div&gt;&lt;div&gt;The prevalence of &lt;em&gt;Staphylococcus aureus&lt;/em&gt; in the circulation (bacteremia) of individuals with sickle cell disease (SCD) may provide a substantial risk for illness and death. Strains of &lt;em&gt;S. aureus&lt;/em&gt; exhibit a wide variety of virulence traits, including the ability to generate various toxins and develop treatment resistance. MRSA is characterized by its resistance to a range of beta-lactam antibiotics. This study’s objectives included assessing the frequency of &lt;em&gt;S. aureus&lt;/em&gt; infection in SCA patients, analyzing laboratory markers of the CBC test, examining the antibiotic susceptibility pattern, and investigating the &lt;em&gt;mecA&lt;/em&gt; gene and heteroresistance, which could potentially link to a higher occurrence of &lt;em&gt;S. aureus&lt;/em&gt; infection in SCA patients. The retrospective study was done to gather clinical data on individuals with sickle cell anemia (SCA) who had bloodstream infections. From 2017 to 2021, blood samples and data were gathered by King Saud University Medical City (KSUMC) in Riyadh, Saudi Arabia. The &lt;em&gt;S. aureus&lt;/em&gt; strains were re-cultivation, Vitek system and PCR techniques were employed to ascertain the antibiotic resistance patterns. It was confirmed that 2406 patients with SCD had contracted an infection. A total of 138 (5.73 %) patients with SCD were diagnosed with bacteremia. “Of the 138 strains isolated, the MRSA strain revealed as the most prevailing, including 30 isolates (21.7 %), whereas non-MRSA strains constituted 17 isolates (12.3 %).” Males had a higher rate of infection compared to females. The results indicated that all the &lt;em&gt;S. aureus&lt;/em&gt; isolates exhibited resistance to ampicillin, while the resistance to penicillin was 98 %. Furthermore, the results indicated that over 65 % of the isolates exhibited resistance to amoxicillin, amoxicillin, cefazolin, imipenem, and oxacillin. The &lt;em&gt;mecA&lt;/em&gt; gene was identified in all &lt;em&gt;S. aureus&lt;/em&gt; strains obtained from patients with SCD. The current study recognizes the PCR assay as a more dependable technique for assessing antibiotic resistances, in contrast to the Vitek method. A study found strong links between &lt;em&gt;S. aureus&lt;/em&gt; infections in individuals with SCD and three different factors: hemoglobin (Hb) level, mean corpuscular volume (RDW), and white blood cell (WBC) count (p &lt; 0.004, 0.005, and 0.02, respectively). The study revealed that 34 % of the &lt;em&gt;S. aureus&lt;/em&gt; strains that were examined exhibited heteroresistance to the &lt;em&gt;mecA&lt;/em&gt; gene as well as resistance to oxacillin. The results clearly demonstrated that Ampicillin, Penicillin, amoxicillin, cefazolin, imipenem, and oxacillin are unsuitable choices for the treatment of blood infections in individuals with SCD. “The findings of this study confirmed that all &lt;em&gt;S. aureus&lt;/em&gt; isolates were sensitive to gentamicin, and more than 80 % of the isolates were sensitive to ciprofloxacin, moxifloxacin, levofloxacin, clindamycin, and vancomycin.” Further investigation is nec","PeriodicalId":16205,"journal":{"name":"Journal of King Saud University - Science","volume":"36 11","pages":"Article 103542"},"PeriodicalIF":3.7,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142658750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A comparative study of chemical composition, the level of fatty acids, amino acids and mineral elements between two types of catfish (Bagrus and Muraena) found in the upper Tigris River 底格里斯河上游两种鲶鱼(Bagrus 和 Muraena)化学成分、脂肪酸、氨基酸和矿物质元素含量的比较研究
IF 3.7 3区 综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES Pub Date : 2024-11-13 DOI: 10.1016/j.jksus.2024.103535
Tariq Kh. Albashr , Ahmed Y. Hamadamin , Karzan F. Namiq , Miran H. Salih , Zaid K. Khidhir , M.A. Suhaib
Fish meat is considered the second most interesting to consume in Iraq hence, consumers always consider the sensory and nutritional profile of the fish meat. The study aimed to investigate the chemical composition and level of fatty acids and amino acids in Bagrus and Muraena fish fillets. These fish for this study were obtained from the upper Tigris river in the Tikrit region of Iraq, as the demand for these types of fish increased in recent years. In this work, High Performance Liquid Chromatography −UV (HPLC-UV) was used for quantification of amino acids, and atomic absorption was used for quantifying the elements. The extraction was performed by liquid –liquid extraction and purified by dispersive phase purification. Results showed that the moisture percentages in Bagrus meat were 71.36 %, while Muraena meat recorded as 71.10 %. Moreover, the protein percentages for both fish types were found as 21.36 and 21.43  % respectively. Lipid percentages in fillets of Bagrus and Muraena were 3.59 and 4.62 %, respectively. The proportion of ash was 3.01 % in Bagrus meat, while it was 2.55 % in Muraena meat. The results also presented that the Muraena has a significantly higher saturated fatty acid level (26.06 %), whereas in Bagrus meat was much less (16.6 %). The highest percentage of amino acids in Bagrus meat recorded (92.66 %), while it was 61.94 % in Muraena meat. The Bagrus meat contained essential amino acids with a higher percentage (54.04 %), compared to Muraena meat (28.55 %), non-essential Amino acids percentage also reached 47.56 % in Bagrus fish fillets. The amino acids like alanine had recorded the highest percentage among non-essential amino acids, as its level resulted in 38.62 %, while the level (33.39 %) was lower in Muraena meat.
在伊拉克,鱼肉被认为是第二大最有趣的食物,因此消费者总是会考虑鱼肉的感官和营养成分。本研究旨在调查 Bagrus 和 Muraena 鱼片的化学成分以及脂肪酸和氨基酸的含量。由于近年来对这些鱼类的需求增加,本研究中的这些鱼类来自伊拉克提克里特地区的底格里斯河上游。本研究采用高效液相色谱-紫外法(HPLC-UV)对氨基酸进行定量,采用原子吸收法对元素进行定量。提取采用液-液萃取法,净化采用分散相净化法。结果显示,Bagrus 肉的水分含量为 71.36%,而 Muraena 肉的水分含量为 71.10%。此外,两种鱼的蛋白质含量分别为 21.36 % 和 21.43 %。巴格斯鱼和穆拉纳鱼鱼片的脂质比例分别为 3.59 % 和 4.62 %。巴格斯鱼肉的灰分比例为 3.01%,而穆拉纳鱼的灰分比例为 2.55%。结果还显示,穆拉纳肉的饱和脂肪酸含量(26.06%)明显更高,而巴格鲁肉的饱和脂肪酸含量(16.6%)则低得多。巴格斯肉的氨基酸含量最高(92.66%),而穆拉纳肉的氨基酸含量为 61.94%。巴格斯鱼肉中必需氨基酸的比例(54.04%)高于穆拉纳鱼(28.55%),巴格斯鱼片中非必需氨基酸的比例也达到 47.56%。在非必需氨基酸中,丙氨酸含量最高,达到 38.62%,而穆拉纳鱼肉中的丙氨酸含量(33.39%)较低。
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引用次数: 0
Processing and formulation technology of nutritional and functional food products by utilizing cheese and/or paneer whey: A critical review 利用奶酪和/或paneer乳清加工和配制营养及功能食品的技术:重要综述
IF 3.7 3区 综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES Pub Date : 2024-11-13 DOI: 10.1016/j.jksus.2024.103508
Deepak Kumar Verma , Ami R. Patel , Soubhagya Tripathy , Alok Kumar Gupta , Smita Singh , Nihir Shah , Gemilang Lara Utama , Mónica L. Chávez-González , Koka Zongo , Kolawole Banwo , Alaa Kareem Niamah , Cristobal Noe Aguilar
Whey is an excellent source of proteins, with a high biological value and essential elements in addition to the proteins it contains. Additionally, it possesses a number of characteristics that are exclusive to it. Whey has been “rediscovered” in recent years and is now being used in a wider variety of food recipes as a result of the features discussed here in the present review paper. It’s possible that using whey instead of the “nutrient goldmine” will be more “economical.” Consumers who are educated on the role that whey plays in human nutrition and are aware of its significance are more likely to be interested in purchasing food products that include whey. Due to the nutritional and functional features that whey possesses, it has been included into a wide variety of food compositions, such as dairy-based products, biofunctional components, confectionary products, and beverages that are both refreshing and nutritious. In this review, several types of food products and beverages containing whey that have been produced so far by researchers from all over the world are described, along with their processing characteristics, sensory attributes, and commercial potential. Moreover, this paper delves into the potential applications of probiotic and functional whey-based products within the realms of biofunctional and therapeutic relevance.
乳清是一种极好的蛋白质来源,除了含有蛋白质外,还具有很高的生物价值和必需元素。此外,乳清还具有一些独有的特性。近年来,乳清被 "重新发现",并被更广泛地用于各种食品配方中。用乳清代替 "营养金矿 "可能会更 "经济"。消费者如果了解乳清在人体营养中所起的作用并意识到其意义,就更有可能有兴趣购买含有乳清的食品。由于乳清所具有的营养和功能特性,它已被纳入多种食品成分中,如乳基产品、生物功能成分、糖果产品和既清爽又营养的饮料。在这篇综述中,介绍了迄今为止世界各地研究人员生产的几种含乳清的食品和饮料,以及它们的加工特点、感官属性和商业潜力。此外,本文还探讨了基于乳清的益生菌和功能性产品在生物功能和治疗领域的潜在应用。
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引用次数: 0
Role of Th1/Th2 cytokine balance in predicting treatment outcomes and disease severity in tuberculosis Th1/Th2 细胞因子平衡在预测结核病治疗效果和疾病严重程度方面的作用
IF 3.7 3区 综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES Pub Date : 2024-11-13 DOI: 10.1016/j.jksus.2024.103538
Gopinath Ramalingam , Javed Masood Khan , Sharmila Jasmine , Gowsalya Saminathan , Elanchezhiyan Manickan , Ponnulakhmi Rajagopal , Vishnu Priya Veeraraghavan , Selvaraj Jayaraman
Tuberculosis (TB) is an age-old disease that remains a significant global public health issue. The protective response to Mycobacterium tuberculosis (MTB) is a complex and multifaceted process involving several components of the immune system, primarily driven by the cooperation between macrophages and T-cell populations. Various animal and human studies have well established the influential roles that cytokines and chemokines play in determining the outcome of MTB infection. The study focused on assessing the influence of Th1 and Th2 responses in tuberculosis by examining the current cytokine profiles in TB patients, emphasizing Th1 and Th2 cytokines, and comparing these profiles with those of patients undergoing treatment and a control group. Additionally, the relationship between cytokine status and the patients’ sex and age was assessed. The analysis of Th1/Th2 cytokines revealed a dichotomy between untreated and treated conditions. The results showed that untreated individuals suffered from a Th1 cytokine deficiency. However, this condition was reversed following the administration of anti-TB antibiotics, with patients who received these drugs showing a shift towards a protective Th1 cytokine profile. Cytokines play a decisive role in various infectious diseases, and this study confirms that TB is among them. The findings from this research could pave the way for novel diagnostic and therapeutic approaches in tuberculosis research.
结核病(TB)是一种古老的疾病,仍然是一个重大的全球公共卫生问题。对结核分枝杆菌(MTB)的保护性反应是一个复杂而多方面的过程,涉及免疫系统的多个组成部分,主要由巨噬细胞和 T 细胞群之间的合作驱动。各种动物和人体研究已经证实,细胞因子和趋化因子在决定 MTB 感染结果方面发挥着重要作用。本研究通过检查结核病患者目前的细胞因子谱,重点是 Th1 和 Th2 细胞因子,并将这些细胞因子谱与接受治疗的患者和对照组的细胞因子谱进行比较,从而评估 Th1 和 Th2 反应对结核病的影响。此外,还评估了细胞因子状态与患者性别和年龄之间的关系。对 Th1/Th2 细胞因子的分析表明,未接受治疗和接受治疗的情况截然不同。结果显示,未经治疗的患者缺乏 Th1 细胞因子。然而,在服用抗结核抗生素后,这种情况发生了逆转,服用这些药物的患者的 Th1 细胞因子谱出现了保护性转变。细胞因子在各种传染病中起着决定性作用,这项研究证实结核病也是其中之一。这项研究的结果可为结核病研究中的新型诊断和治疗方法铺平道路。
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引用次数: 0
A parametrized approach to generalized fractional integral inequalities: Hermite–Hadamard and Maclaurin variants 广义分式积分不等式的参数化方法:赫米特-哈达马德和麦克劳林变体
IF 3.7 3区 综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES Pub Date : 2024-11-13 DOI: 10.1016/j.jksus.2024.103523
Abdelghani Lakhdari , Bandar Bin-Mohsin , Fahd Jarad , Hongyan Xu , Badreddine Meftah
This paper introduces a novel parametrized integral identity that forms the basis for deriving a comprehensive class of generalized fractional integral inequalities. Building on recent advancements in fractional calculus, particularly in conformable fractional integrals, our approach offers a unified framework for various known inequalities. The novelty of this work lies in its ability to generate new and more general inequalities, including Hermite–Hadamard-, Maclaurin-, and corrected Maclaurin-type inequalities, by selecting specific parameter values. These results extend the scope of fractional integral inequalities and provide new insights into their structure. To demonstrate the practical applicability and accuracy of the theoretical findings, we present a detailed numerical example along with graphical representations.
本文介绍了一种新颖的参数化积分特性,它构成了推导综合类广义分式积分不等式的基础。基于分数微积分学的最新进展,特别是在保形分数积分方面的进展,我们的方法为各种已知不等式提供了一个统一的框架。这项工作的新颖之处在于它能够通过选择特定的参数值,生成新的、更一般的不等式,包括 Hermite-Hadamard、Maclaurin 和修正 Maclaurin 型不等式。这些结果扩展了分数积分不等式的范围,并对其结构提供了新的见解。为了证明理论发现的实际应用性和准确性,我们提供了一个详细的数值示例和图形表示。
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引用次数: 0
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Journal of King Saud University - Science
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