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DEVELOPMENT AND VALIDATION OF A SIMPLE AND COST-EFFECTIVE UV SPECTROPHOTOMETRIC METHOD FOR QUANTIFYING LINEZOLID 开发并验证一种简单、经济的紫外分光光度法定量利奈唑胺
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2024-05-07 DOI: 10.22159/ijap.2024v16i3.50556
Iti Chauhan, Lubhan Singh
Objective: This study focuses on the development and validation of a sensitive, simple, accurate, precise and cost-effective Ultraviolet-Visible (UV) spectrophotometric method for the quantification of Linezolid, a widely used antibiotic in pharmaceutical formulations.Methods: The analysis utilized a solvent system comprising 80% water and 20% methanol (v/v). The absorbance of standard solutions was measured and a calibration curve was constructed. Various analytical performance parameters, including linearity, range, precision, accuracy, Limit of Detection (LOD), Limit of Quantification (LOQ) and ruggedness, were determined following the International Conference on Harmonization (ICH) Q2 (R1) guidelines.Results: The maximum absorption peak (λmax) of Linezolid was determined to be 251 nm in the selected medium. Beer-Lambert’s law was valid in the concentration range of 0.5–9 μg/ml, with a high correlation coefficient (R2) of 0.9955. The proposed method exhibited a recovery ranging from 99.08 to 100.37% with % Relative Standard Deviation (RSD) value consistently below 2%.Conclusion: The study findings confirm the accuracy, precision and reproducibility of the developed method. Additionally, it is characterized by its simplicity, affordability, and time efficiency. Thus, this method can be effectively employed for the quantification of Linezolid in lipid nanoparticles.
研究目的本研究的重点是开发和验证一种灵敏、简单、准确、精确且经济高效的紫外分光光度法,用于定量检测药物制剂中广泛使用的抗生素利奈唑胺:分析采用的溶剂系统为 80% 的水和 20% 的甲醇(v/v)。测量标准溶液的吸光度并构建校准曲线。根据国际协调会议(ICH)Q2 (R1)指南确定了各种分析性能参数,包括线性、范围、精密度、准确度、检测限(LOD)、定量限(LOQ)和耐用性:结果:在所选培养基中,利奈唑胺的最大吸收峰 (λmax) 被确定为 251 nm。比尔-朗伯定律在 0.5-9 μg/ml 浓度范围内有效,相关系数 (R2) 为 0.9955。该方法的回收率为 99.08% 至 100.37%,相对标准偏差(RSD)始终低于 2%:研究结果证实了所开发方法的准确性、精确性和可重复性。此外,该方法还具有简便、经济、省时的特点。因此,该方法可有效地用于脂质纳米颗粒中利奈唑胺的定量分析。
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引用次数: 0
MOLECULAR DOCKING DYNAMICS OF SELECTED BENZYLIDENE AMINO PHENYL ACETAMIDES AS TMK INHIBITORS USING HIGH THROUGHPUT VIRTUAL SCREENING (HTVS) 利用高通量虚拟筛选(HTVS)对作为 TMK 抑制剂的精选苯亚氨基苯基乙酰胺进行分子对接动力学研究
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2024-05-07 DOI: 10.22159/ijap.2024v16i3.50023
Koppula Jayanthi, Syed Suhaib Ahmed, Mohd Abdul Baqi, Mohammed AFZAL AZAM
Objective: Thymidylate kinase (TMK) plays a crucial role in bacterial DNA synthesis by catalyzing the phosphorylation of deoxythymidine monophosphate (dTMP) to form deoxythymidine diphosphate (dTDP). Consequently, this enzyme emerges as a promising target for developing novel antibacterial drugs. However, no antibiotics were reported for this target, especially active against Staphylococcus aureus thymidylate kinase.Methods: Benzylidene acetamide-based ligands were examined for their potency using the in silico method. These novel ligand structures were built using ChemDraw software. The protein was retrieved from the Research Collaboratory for Structural Bioinformatics Protein Data Bank (RCSB PDB) website. The molecular docking and binding free energy calculation by prime Molecular Mechanics in Generalized Bond Surface Area (MM-GBSA) was performed for selected ligands. A 100 ns molecular dynamic simulation was also performed to assess the stability of the potential ligand as TMK inhibitors.Results: All ten molecules have shown good glide scores and hydrophobic and hydrogen hydrophobic hydrogen bonding interactions with Arg48, Arg36, and π-π stacking Phe66 in the TMK enzyme (PDB: 4HLC). Among them, N-(2-ethylphenyl)-2-(4-((4-nitrobenzylidene) amino) phenoxy) acetamide molecule had high XP-docking scores of-3.27 kcal/mol based on extra-precision data. Prime Molecular Mechanics in Generalized Bond Surface Area study (MM-GBSA) studies also showed promising binding affinities that are ΔBind (-65.80), ΔLipo (-28.55), and ΔVdW (-55.10). Phe66 amino acid residue maintained continuous connections with the ligand during MD simulation. This ligand showed promising binding affinity with the SaTMK target.Conclusion: The N-(2-ethylphenyl)-2-(4-((4-nitrobenzylidene) amino) phenoxy) acetamide ligand at the position of the benzene ring displayed nitrogen and oxygen group, thus indicating good potential activity as the inhibitor of TMK to treat antibacterial agents.
目的:胸苷酸激酶(TMK)通过催化单磷酸脱氧胸苷(dTMP)的磷酸化形成二磷酸脱氧胸苷(dTDP),在细菌的 DNA 合成过程中发挥着至关重要的作用。因此,这种酶成为开发新型抗菌药物的一个很有前景的靶点。然而,目前还没有报道针对这一靶点的抗生素,尤其是对金黄色葡萄球菌胸苷酸激酶有活性的抗生素:方法:采用硅学方法研究了苯亚乙酰胺配体的效力。这些新型配体结构是用 ChemDraw 软件构建的。蛋白质是从结构生物信息学研究合作组织蛋白质数据库(RCSB PDB)网站上获取的。通过广义键面面积分子力学(MM-GBSA)对选定配体进行了分子对接和结合自由能计算。此外,还进行了 100 ns 的分子动力学模拟,以评估潜在配体作为 TMK 抑制剂的稳定性:结果:所有十种分子都显示出良好的滑行得分以及与 TMK 酶(PDB:4HLC)中 Arg48、Arg36 和 π-π 堆积 Phe66 的疏水和氢疏水氢键相互作用。其中,N-(2-乙基苯基)-2-(4-((4-硝基亚苄基)氨基)苯氧基)乙酰胺分子的XP-对接得分较高,根据额外精度数据为3.27 kcal/mol。广义键表面积分子力学研究(MM-GBSA)也显示出良好的结合亲和力,分别为ΔBind(-65.80)、ΔLipo(-28.55)和ΔVdW(-55.10)。在 MD 模拟过程中,Phe66 氨基酸残基与配体保持连续连接。该配体与 SaTMK 靶点的结合亲和力良好:N-(2-乙基苯基)-2-(4-((4-硝基亚苄基)氨基)苯氧基)乙酰胺配体在苯环的位置上显示出氮基和氧基,因此表明其作为 TMK 抑制剂治疗抗菌剂具有良好的潜在活性。
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引用次数: 0
REVITALIZING THERAPEUTICS: DRUG REPURPOSING AS A COST-EFFECTIVE STRATEGY FOR DRUG DEVELOPMENT 振兴疗法:药物再利用作为一种具有成本效益的药物开发战略
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2024-05-07 DOI: 10.22159/ijap.2024v16i3.49581
Shivani Makhijani
The process of developing new drugs is known for being drawn-out, expensive, risky, and having a high attrition rate. Drug repurposing has grown in favor recently as a practical way to speed up the development of new medicines while reducing the costs and time constraints associated with traditional drug research. The description of this study's pharmacological repurposing highlights its promise as a practical method to fill gaps in the market and revitalize treatment options. This review provides a full analysis of the ground-breaking tactic of repurposing medications, supported by numerous cases that demonstrate its revolutionary potential. We examine instances of repurposed drugs, such as thalidomide, sildenafil, and metformin, that have performed astoundingly well in a range of therapeutic settings despite being used outside of their original scope.Overall, the paper's main goal-to study pharmacological repurposing as a potentially successful strategy for revitalizing treatments-is, succinctly summarized in this abstract. It highlights the potential benefits of this approach and how it might be used in the pharmaceutical industry's ongoing quest for more inexpensive and effective medicine development.
众所周知,新药研发过程耗时长、成本高、风险大、损耗率高。近来,药物再利用作为一种既能加快新药开发,又能减少传统药物研究成本和时间限制的实用方法,越来越受到人们的青睐。本研究对药物再利用的描述突出了其作为填补市场空白和振兴治疗方案的实用方法的前景。本综述全面分析了药物再利用这一突破性策略,并通过大量案例证明了其革命性潜力。我们研究了沙利度胺、西地那非和二甲双胍等再利用药物的实例,尽管这些药物的使用超出了其原有的范围,但它们在一系列治疗环境中的表现却令人震惊。总之,本文的主要目标--研究药物再利用作为振兴疗法的潜在成功策略--在本摘要中得到了简明扼要的概括。总之,本摘要简明扼要地概括了论文的主要目标--研究药理再利用作为振兴治疗方法的潜在成功策略,强调了这种方法的潜在益处,以及如何将其用于制药业正在进行的寻求更廉价、更有效药物的开发过程中。
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引用次数: 0
FORMULATION DEVELOPMENT AND IN VITRO PENETRATION TEST OF ETHOSOME OF CHROMOLAENA ODORATA LEAVES EXTRACT 香叶乙素的配方开发和体外渗透试验
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2024-05-07 DOI: 10.22159/ijap.2024v16i3.49856
Sofia Rahmi, Julia Reveny, Anayanti Arianto, P. Sitorus
Objective: This study aimed to develop and assess ethosome preparation using extracts derived from the leaves of Chromolaena odorata.Methods: The study started by obtaining Chromolaena odorata leaf extracts. Furthermore, Ethosome formulations were produced using a thermal technique. Ethosome variants were created, each with distinct compositions: Formulation F1, containing 10 ml of ethanol without the extract; Formulation F2, consisting of 0.5 grams of the extract mixed with 10 ml of ethanol; Formulation F3, combining 1 gram of the extract with 20 ml of ethanol; and Formulation F4, incorporating 1.5 grams of the extract with 30 ml of ethanol. The ethosomal systems were thoroughly characterized using various analytical techniques, such as organoleptic analysis, quantification of particle dimensions, zeta potential evaluation, pH metric analysis, transmission electron microscopy (TEM) imaging, and in vitro permeability assessment using the Franz Diffusion Cell apparatus.Results: The findings indicated that the optimized F4 formulation showed 161.2±32.0 nm particle size measurement and a+34.33±0.58 mV zeta potential. All formula possess a pH range of 4.5-6.5, within which the skin can acclimate to preparations. It is evident from all formulations that the pH decreased after the addition of the extract at an acidic pH of 4.11. Following the 12-week storage period, the pH of all treatments exhibited a modest reduction; however, it remained within the acceptable range for skin pH. Furthermore, the F4 formula also had a higher level of penetration activity.Conclusion: The optimized ethosomal formulations of Chromolaena odorata have promising applications in enhancing the permeability and efficacy of plant-derived therapeutic agents.
目的:本研究旨在开发和评估乙素体制剂:本研究旨在开发和评估使用从 Chromolaena odorata 叶子中提取的提取物制备的乙素体:方法:本研究首先获得了 Chromolaena odorata 的叶片提取物。此外,还利用热技术制备了 Ethosome 配方。乙素体变体被制作出来,每种变体都有不同的成分:配方 F1,含 10 毫升乙醇,不含提取物;配方 F2,0.5 克提取物与 10 毫升乙醇混合;配方 F3,1 克提取物与 20 毫升乙醇混合;配方 F4,1.5 克提取物与 30 毫升乙醇混合。利用各种分析技术,如感官分析、颗粒尺寸定量、ZETA电位评估、pH值度量分析、透射电子显微镜(TEM)成像以及使用弗朗兹扩散池仪器进行体外渗透性评估,对乙撑体系统进行了全面的表征:结果表明,优化的 F4 配方的粒度测量值为 161.2±32.0 nm,zeta 电位为+34.33±0.58 mV。所有配方的 pH 值范围均为 4.5-6.5,皮肤可在此范围内适应制剂。从所有配方中可以明显看出,在添加提取物后,pH 值下降到 4.11 的酸性 pH 值。储存 12 周后,所有配方的 pH 值都略有下降,但仍在皮肤 pH 值可接受的范围内。此外,F4 配方的渗透活性也更高:优化后的香茅乙素体配方在提高植物提取治疗剂的渗透性和疗效方面具有广阔的应用前景。
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引用次数: 0
DESIGN, DEVELOPMENT AND IMPROVEMENT OF AN EMULGEL CONTAINING SILVER NANOPARTICLES AND VITAMIN D-3 FOR ITS POTENTIAL TO ACCELERATE THE HEALING OF WOUND 设计、开发和改进含银纳米粒子和维生素 d-3 的凝胶,以提高其加速伤口愈合的潜力
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2024-05-07 DOI: 10.22159/ijap.2024v16i3.50344
Rishu Yadav, Narendra Kumar Pandey, Rajiv Kukkar
Objective: The aim of this research work was to prepare a topical emulgel based dosage form incorporated with vitamin D-3 and silver nanoparticles to reduce the wound healing time in any kind of wound.Methods: Central Composite Design (CCD) was applied for the optimization of emulgel by using Design expert software. Three responses (pH, viscosity, and in vitro drug release) and two factors (Carbopol concentration and stirring duration) were chosen, and Statistical Analysis of Variance (ANOVA) revealed that all the factors were significantly affecting the responses. Silver Nanoparticles (SNPs) was prepared with Green Tea Extract (GTE) and evaluated for particle size, Poly Dispersity Index (PDI), zeta potential and Fourier Transform Infra-red (FTIR) spectroscopy and revealed that SNPs of desired range and stability have been synthesized. Here excision wound model was used to evaluate the wound healing activity of formulation in vivo.Results: Maximum in vitro release 88.2±2.1 has shown by the optimized formulation F13, pH and viscosity were also found in optimum range i.e., 6.2±0.4 and 1672±33 respectively, followed by Korsmeyer and Peppas model. Total eight groups were designed for animal study and silver sulphadiazine was used as marketed formulation. F13 formulation was further evaluated for in vivo data, it was revealed that emulgel loaded with high dose of vitamin D-3 along with silver nanoparticles has shown 100.5±1.7% wound contraction, while marketed formulation has shown 103.7±1.1% wound contraction, which was much similar with test formulation. Cytotoxic cell study was done using assay on chicken egg, formulation has not shown any cytotoxic behaviour like haemolysis and cell damage on chick embryo’s blood vessels. Accelerated stability study of the optimized formulation was also performed to check whether the formulation was stable or not and it was revealed that optimized formulation was found stable for the period of six months.Conclusion: It was revealed that emulgel loaded with high dose of vitamin D-3 and SNPs found suitable to accelerate wound healing and showed almost similar response in wound contraction on comparison with marketed formulation. This emulgel promised to controlled the delivery of the drug for the longer duration.
研究目的本研究工作旨在制备一种含有维生素 D-3 和纳米银颗粒的外用乳胶剂型,以缩短各种伤口的愈合时间:方法:利用 Design expert 软件,采用中央复合设计(CCD)对润肤凝胶进行优化。选择了三个响应(pH 值、粘度和体外药物释放)和两个因素(Carbopol 浓度和搅拌持续时间),统计方差分析(ANOVA)显示,所有因素都对响应有显著影响。用绿茶提取物(GTE)制备了银纳米颗粒(SNPs),并对其粒度、聚分散指数(PDI)、ZETA电位和傅立叶变换红外光谱(FTIR)进行了评估,结果表明合成的 SNPs 具有所需的范围和稳定性。在此,使用切除伤口模型来评估制剂在体内的伤口愈合活性:结果:优化配方 F13 的体外最大释放量为 88.2±2.1,pH 值和粘度也在最佳范围内,分别为 6.2±0.4 和 1672±33,其次是 Korsmeyer 和 Peppas 模型。共设计了八组动物实验,磺胺嘧啶银被用作市场上的制剂。对 F13 制剂进行了进一步的体内数据评估,结果显示,含有高剂量维生素 D-3 和银纳米粒子的凝胶显示出 100.5±1.7% 的伤口收缩率,而市售制剂显示出 103.7±1.1% 的伤口收缩率,与试验制剂非常相似。细胞毒性研究是在鸡卵上进行的,配方没有显示出任何细胞毒性行为,如溶血和对鸡胚血管的细胞损伤。此外,还对优化配方进行了加速稳定性研究,以检查配方是否稳定,结果表明优化配方在 6 个月内保持稳定:结论:研究发现,含有高剂量维生素 D-3 和 SNP 的凝胶适合加速伤口愈合,与市场上销售的配方相比,它在伤口收缩方面表现出几乎相似的反应。这种凝胶有望在更长的时间内控制药物的输送。
{"title":"DESIGN, DEVELOPMENT AND IMPROVEMENT OF AN EMULGEL CONTAINING SILVER NANOPARTICLES AND VITAMIN D-3 FOR ITS POTENTIAL TO ACCELERATE THE HEALING OF WOUND","authors":"Rishu Yadav, Narendra Kumar Pandey, Rajiv Kukkar","doi":"10.22159/ijap.2024v16i3.50344","DOIUrl":"https://doi.org/10.22159/ijap.2024v16i3.50344","url":null,"abstract":"Objective: The aim of this research work was to prepare a topical emulgel based dosage form incorporated with vitamin D-3 and silver nanoparticles to reduce the wound healing time in any kind of wound.\u0000Methods: Central Composite Design (CCD) was applied for the optimization of emulgel by using Design expert software. Three responses (pH, viscosity, and in vitro drug release) and two factors (Carbopol concentration and stirring duration) were chosen, and Statistical Analysis of Variance (ANOVA) revealed that all the factors were significantly affecting the responses. Silver Nanoparticles (SNPs) was prepared with Green Tea Extract (GTE) and evaluated for particle size, Poly Dispersity Index (PDI), zeta potential and Fourier Transform Infra-red (FTIR) spectroscopy and revealed that SNPs of desired range and stability have been synthesized. Here excision wound model was used to evaluate the wound healing activity of formulation in vivo.\u0000Results: Maximum in vitro release 88.2±2.1 has shown by the optimized formulation F13, pH and viscosity were also found in optimum range i.e., 6.2±0.4 and 1672±33 respectively, followed by Korsmeyer and Peppas model. Total eight groups were designed for animal study and silver sulphadiazine was used as marketed formulation. F13 formulation was further evaluated for in vivo data, it was revealed that emulgel loaded with high dose of vitamin D-3 along with silver nanoparticles has shown 100.5±1.7% wound contraction, while marketed formulation has shown 103.7±1.1% wound contraction, which was much similar with test formulation. Cytotoxic cell study was done using assay on chicken egg, formulation has not shown any cytotoxic behaviour like haemolysis and cell damage on chick embryo’s blood vessels. Accelerated stability study of the optimized formulation was also performed to check whether the formulation was stable or not and it was revealed that optimized formulation was found stable for the period of six months.\u0000Conclusion: It was revealed that emulgel loaded with high dose of vitamin D-3 and SNPs found suitable to accelerate wound healing and showed almost similar response in wound contraction on comparison with marketed formulation. This emulgel promised to controlled the delivery of the drug for the longer duration.","PeriodicalId":13737,"journal":{"name":"International Journal of Applied Pharmaceutics","volume":"24 31","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141004850","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
RP-HPLC METHOD DEVELOPMENT AND VALIDATION FOR SIMULTANEOUS ESTIMATION OF CURCUMIN AND RESVERATROL IN NANO-MICELLE: DUAL DRUG DUAL FORM SIMULTANEOUS ESTIMATION 同时估算纳米胶束中姜黄素和白藜芦醇的 rp-hplc 方法开发与验证:双药双态同时估算
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2024-05-07 DOI: 10.22159/ijap.2024v16i3.50276
SK Mosiur Rahaman, Atanu Chandra, Ranu Biswas
Objective: To develop a reverse-phase high-performance liquid chromatography (RP-HPLC) method for simultaneous estimation of conjugated form of Curcumin (CCMN) and free form of Resveratrol (RSV) in nano-micelle.Methods: The conjugation of lipophilic CCMN and hydrophilic Chitosan (CHT) through succinyl linker produce amphipathic molecule that can self-assemble into RSV solution to form micelle. Here RSV exists in micelle core as free form and CCMN with micelle backbone as conjugated form. So it required to estimate conjugated drug and free drug simultaneously from nano-micelle. We developed a RP-HPLC method, utilized C18 column, follow flow rate of mobile phase 1.0 ml/min, which consist of acetonitrile with water (0.5% Ortho Phosphoric acid, pH 4.6) in the ratio of 1:1 for 20 min. Injection volume was 10μl and column temperature 25 ℃. Isosbestic detection of both drugs was at 254 nm.Results: The retention time of RSV and CCMN were at 8.15 min and 11.41 min respectively, completely distinguished sharp peak of CCMN and RSV developed with resolution 7.360±0.117, wide range of linearity with correlation coefficient value (R2) of CCMN and RSV were 0.99987 and 0.99992 respectively and recovery value of CCMN and RSV were 100.041±0.22 % and 100.041±0.21 % respectively. The RSD (relative standard deviation) for accuracy, precision and robustness of the method was found to be less than 2%.Conclusion: The develop method for simultaneous estimation of conjugated CCMN and free form of RSV in the nano-micelle formulation was consider to be accurate, precise, robust and sensitive.
目的建立一种反相高效液相色谱(RP-HPLC)方法,用于同时测定纳米胶束中的共轭型姜黄素(CCMN)和游离型白藜芦醇(RSV):方法:亲油型 CCMN 与亲水性壳聚糖(CHT)通过琥珀酰基连接体共轭,产生两亲分子,可自组装到 RSV 溶液中形成胶束。在这里,RSV 以游离形式存在于胶束核心,而 CCMN 与胶束骨架以共轭形式存在。因此,需要同时估算纳米胶束中的共轭药物和游离药物。我们开发了一种 RP-HPLC 方法,采用 C18 色谱柱,流动相流速为 1.0 ml/min,乙腈与水(0.5% 正磷酸,pH 4.6)的比例为 1:1,流动时间为 20 分钟。进样量为 10 微升,柱温为 25 ℃。两种药物的等光检测波长为 254 nm:RSV和CCMN的保留时间分别为8.15 min和11.41 min;CCMN和RSV的峰形完全不同,分辨率为7.360±0.117;线性范围宽,CCMN和RSV的相关系数(R2)分别为0.99987和0.99992;CCMN和RSV的回收率分别为100.041±0.22 %和100.041±0.21 %。方法的准确度、精密度和稳健性的 RSD(相对标准偏差)均小于 2%:该方法准确、精密、稳健、灵敏,适用于纳米微囊制剂中共轭CCMN和游离型RSV的同时测定。
{"title":"RP-HPLC METHOD DEVELOPMENT AND VALIDATION FOR SIMULTANEOUS ESTIMATION OF CURCUMIN AND RESVERATROL IN NANO-MICELLE: DUAL DRUG DUAL FORM SIMULTANEOUS ESTIMATION","authors":"SK Mosiur Rahaman, Atanu Chandra, Ranu Biswas","doi":"10.22159/ijap.2024v16i3.50276","DOIUrl":"https://doi.org/10.22159/ijap.2024v16i3.50276","url":null,"abstract":"Objective: To develop a reverse-phase high-performance liquid chromatography (RP-HPLC) method for simultaneous estimation of conjugated form of Curcumin (CCMN) and free form of Resveratrol (RSV) in nano-micelle.\u0000Methods: The conjugation of lipophilic CCMN and hydrophilic Chitosan (CHT) through succinyl linker produce amphipathic molecule that can self-assemble into RSV solution to form micelle. Here RSV exists in micelle core as free form and CCMN with micelle backbone as conjugated form. So it required to estimate conjugated drug and free drug simultaneously from nano-micelle. We developed a RP-HPLC method, utilized C18 column, follow flow rate of mobile phase 1.0 ml/min, which consist of acetonitrile with water (0.5% Ortho Phosphoric acid, pH 4.6) in the ratio of 1:1 for 20 min. Injection volume was 10μl and column temperature 25 ℃. Isosbestic detection of both drugs was at 254 nm.\u0000Results: The retention time of RSV and CCMN were at 8.15 min and 11.41 min respectively, completely distinguished sharp peak of CCMN and RSV developed with resolution 7.360±0.117, wide range of linearity with correlation coefficient value (R2) of CCMN and RSV were 0.99987 and 0.99992 respectively and recovery value of CCMN and RSV were 100.041±0.22 % and 100.041±0.21 % respectively. The RSD (relative standard deviation) for accuracy, precision and robustness of the method was found to be less than 2%.\u0000Conclusion: The develop method for simultaneous estimation of conjugated CCMN and free form of RSV in the nano-micelle formulation was consider to be accurate, precise, robust and sensitive.","PeriodicalId":13737,"journal":{"name":"International Journal of Applied Pharmaceutics","volume":"87 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141002257","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
DEVELOPMENT OF MYCROCRYSTALLINE CELLULOSE ORIGINATE FROM SAGO (METROXYLON SAGU) STEM BARK BY HYDROLISIS METHODE USING NITRIC ACID 用硝酸水解法开发西米茎皮中的霉晶纤维素
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2024-05-07 DOI: 10.22159/ijap.2024v16i3.49622
Nur Illiyyin Akib, Sriwidodo, Adryan Fristiohady Lubis, Mery Dina SYNTIA SAMANI, Ahmad FAHMI NUR, Rina Andriani, A. Chaerunisaa
Objective: Microcrystalline cellulose (MCC) is an essential excipient in tablet formulation. Mostly MCC was obtained from wooden conifer stem fiber, therefore environment issues had been came up. Alternative sources for MCC which offer friendly conifer wood need to be explored. This study aimed to isolate and determine the characteristics of MCC originated from Sago (Metroxylon sago Rottb.) stem fibers as an promising alternative of MCC.Methods: MCC was prepared through pre-hydrolysis using an acetic acid solution, alkali heating using NaOH solution, and acid hydrolysis using nitric acid 0.3 N using three variations of heating temperature, namely 90, 95 and 100 °C. The characterization carried out were pharmaceutical grade, powder properties, FTIR analysis and powder morphology by SEM.Results: The yields obtained were 66.02; 65.53 and 65.08%, respectively. The characteristics of the MCC sample based on pharmaceutical grade quality were white to yellowish white powder, odorless, tasteless, insoluble in: ether, 96% alcohol, HCl 2N and NaOH 1N. The pH of the MCC suspension were 5.07-5.12, while moisture content were 3.67-4.17%, with loss on drying value as much as 0.37-0.4%, and ash content 1-2.17%. The value of permanganate number were 0.09-0.11, Hausner factor was between 1.05-1.25, and angle of repose were between 11.4-24.8°.Conclusion: Based on the results, it can be concluded that Sago is potent natural resource for MCC. The resulting MCC revealed physicochemical and characteristic of MCC, which almost similar to Avicel PH 102 as standard.
目的:微晶纤维素(MCC)是片剂配方中必不可少的辅料。大多数微晶纤维素是从针叶树茎木纤维中提取的,因此出现了环境问题。因此,需要探索对针叶树木无害的 MCC 替代来源。本研究旨在分离并确定源自西米(Metroxylon sago Rottb.)茎纤维的 MCC 的特性,以此作为一种有前景的 MCC 替代品:方法:使用醋酸溶液进行预水解,使用 NaOH 溶液进行碱加热,使用 0.3 N 硝酸进行酸水解,使用三种不同的加热温度(即 90、95 和 100 °C)制备 MCC。所进行的表征包括制药等级、粉末特性、傅立叶变换红外光谱分析和扫描电镜下的粉末形态:获得的产量分别为 66.02%、65.53% 和 65.08%。基于药用级质量的 MCC 样品特征为白色至黄白色粉末,无臭、无味,不溶于乙醚、96% 酒精、2N HCl 和 1N NaOH。MCC 悬浮液的 pH 值为 5.07-5.12,水分含量为 3.67-4.17%,干燥损失值高达 0.37-0.4%,灰分含量为 1-2.17%。高锰酸盐数为 0.09-0.11,豪斯纳系数在 1.05-1.25 之间,休止角在 11.4-24.8° 之间:根据研究结果,可以得出西米是制造 MCC 的有效自然资源的结论。制得的 MCC 显示了 MCC 的理化特性,几乎与 Avicel PH 102 标准相似。
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引用次数: 0
AN UPDATED REVIEW OF STEALTH LIPOSOMES AND ITS ABILITY TO EVADE THE IMMUNE SYSTEM: A NEW FRONTIER IN CANCER CHEMOTHERAPY 隐形脂质体及其规避免疫系统能力的最新综述:癌症化疗的新领域
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2024-05-07 DOI: 10.22159/ijap.2024v16i3.50601
Durgaramani Sivadasan
Liposomes have been the delivery of choice for the cancer targeting therapy for the last few decades. Since the 1990s, the development of sterically stabilized (stealth) liposomes has garnered interest for their long circulating half-life. PEGylated (Polyethylene Glycol) liposomes are most extensively studied for delivering cancer therapeutics in a sustained manner. Stealth liposomes are having a less intrinsic toxicity with higher efficacy in cancer treatment. There are numerous clinical trials on the liposomes in tackling cancer is evident for the better outcome of the delivery system. Stealth liposomes are extensively studied for their improved circulation time and better pharmacokinetic profile in cancer treatment. The steric hindrance of the stealth liposomes bypasses the reticuloendothelial system clearance. Further the ligands conjugation in the surface of the liposomes able to achieve better target to the cancer cells. The vascularization nature of the cancerous cells is readily making the liposomal delivery of the cancer drugs accumulate in the cancerous cells rather than healthy cells. There is an utmost need to understand the possible mechanism of stealth liposomes and the basic science behind the development of liposomal delivery system in advancing the cancer treatment with less toxicity. The present review addresses the various modalities of the liposomal development, liposome characterization, mechanism of PEGylated liposomes, the advancements and results of the liposomes in the treatment of various diseases, and the clinical trials and regulatory considerations of liposomal drug delivery system.
过去几十年来,脂质体一直是癌症靶向治疗的首选给药方式。自 20 世纪 90 年代以来,立体稳定(隐形)脂质体因其循环半衰期长而备受关注。对 PEG(聚乙二醇)脂质体进行了最广泛的研究,以持续递送癌症治疗药物。隐形脂质体的内在毒性较低,但在癌症治疗中的疗效较高。关于脂质体治疗癌症的大量临床试验表明,这种给药系统的效果更好。对隐形脂质体进行了广泛研究,以了解其在癌症治疗中更长的循环时间和更好的药代动力学特征。隐形脂质体的立体阻碍作用可绕过网状内皮系统的清除。此外,在脂质体表面缀合的配体能更好地靶向癌细胞。癌细胞的血管化特性很容易使脂质体递送的抗癌药物在癌细胞而非健康细胞中积聚。我们亟需了解隐形脂质体的可能机制以及脂质体给药系统开发背后的基础科学,以推进毒性较低的癌症治疗。本综述探讨了脂质体开发的各种模式、脂质体的表征、PEG 化脂质体的机制、脂质体在治疗各种疾病方面的进展和成果,以及脂质体给药系统的临床试验和监管考虑因素。
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引用次数: 0
CHIRAL SWITCHING CONTROL OF PHARMACEUTICAL SUBSTANCES 制药物质的手性转换控制
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2024-05-07 DOI: 10.22159/ijap.2024v16i3.50481
Olga V. Levitskaya, T. Pleteneva, Daria A. Galkina, Nadezhda A. Khodorovich, E. Uspenskaya, Anton V. Syroeshkin
Objective: The aim of this study was to demonstrate that chiral switching should be recognized as a widespread phenomenon that extends beyond the production of pure enantiomeric drugs.Methods: To investigate the optical activity of substances from various chemical classes, enantiomers of chiral compounds (Sigma-Aldrich, USA) were chosen: valine and its racemic form (D-valine, L-valine, and racemic valine with optical purity ≥ 99%), L-ascorbic acid (content ≥ 99%), carbohydrates (D-glucose, D-galactose, L-galactose, contents ≥ 99.5%). Solutions were prepared using deuterium-depleted water (DDW–"light" water, D/H=4 ppm), natural deionized high-ohmic water (BD, D/H=140 ppm), and heavy water (99.9% D2O; Sigma-Aldrich). Optical activity was measured using the Atago POL-1/2 polarimeter.Results: One of the components in the racemic medication mixture can act as an inert agent, exhibit toxicity, or undergo undesirable biotransformation mechanisms, resulting in the formation of products with unknown properties. It has been established that a change in the deuterium/protium (D/H) ratio in water leads to a change in the equilibrium and kinetic characteristics of optically active compounds across various chemical classes, such as amino acids, carboxylic acids, and carbohydrates. An inequality was observed in the absolute values of the optical rotation of the L-and D-isomers of valine and galactose, depending on the D/H isotope ratio. The impact of chiral water clusters on optical rotation accounts for the sudden shift in the specific rotation of dilute solutions (less than 0.5%) of L-ascorbic acid in water, based on the D/H ratio. The influence of the isotopic composition of water was confirmed by studying the temperature-dependent mutarotation kinetics of D-glucose and L-and D-galactose in Arrhenius coordinates.The mutarotation process in natural high-resistivity water is characterized by an activation energy (Ea) of 40.8±1.4 kJ mol-1, while in deuterium-depleted water, Ea = 63.6±3.5 kJ mol-1. This results in a kinetic isotope effect for deuterium (KIED) of 1.6.Conclusion: Methodological approaches have been developed to control chiral switching based on the isotopic composition of water in vivo and in vitro. The study of changes in the optical activity of hierarchical structures in the human body, the influence of solvent properties on the mechanisms of optical rotation, as well as the use of KIED values, can be utilized to monitor various chiral transitions in vitro and living organisms.
目的:本研究的目的是证明手性转换是一种普遍现象,其范围超出了纯对映体药物的生产:本研究旨在证明手性转换应被视为一种普遍现象,其范围超出了纯对映体药物的生产:为了研究不同化学类别物质的光学活性,选择了手性化合物的对映体(Sigma-Aldrich,美国):缬氨酸及其外消旋体(D-缬氨酸、L-缬氨酸和外消旋缬氨酸,光学纯度≥99%)、L-抗坏血酸(含量≥99%)、碳水化合物(D-葡萄糖、D-半乳糖、L-半乳糖,含量≥99.5%)。配制溶液时使用了贫氘水(DDW-"轻 "水,D/H=4 ppm)、天然去离子水(BD,D/H=140 ppm)和重水(99.9% D2O;Sigma-Aldrich)。使用 Atago POL-1/2 旋光仪测量光学活性:结果:外消旋药物混合物中的一种成分可作为惰性剂、表现出毒性或发生不良的生物转化机制,从而形成性质不明的产物。已经证实,水中氘/氕(D/H)比值的变化会导致氨基酸、羧酸和碳水化合物等不同化学类别的光学活性化合物的平衡和动力学特性发生变化。根据 D/H 同位素比的不同,缬氨酸和半乳糖的 L 和 D 异构体的光学旋转绝对值也不相同。手性水簇对光学旋转的影响说明了根据 D/H 比值,L-抗坏血酸水稀释溶液(小于 0.5%)的比旋转发生了突变。通过研究阿伦尼乌斯坐标中 D-葡萄糖和 L-半乳糖及 D-半乳糖随温度变化的突变动力学,证实了水的同位素组成的影响。因此,氘的动力学同位素效应(KIED)为 1.6:根据体内和体外水的同位素组成控制手性转换的方法已经开发出来。研究人体内分层结构的光学活性变化、溶剂特性对光学旋转机制的影响以及 KIED 值的使用,可用于监测体外和生物体内的各种手性转换。
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引用次数: 0
THE FORMULATION AND EVALUATION OF 6-THIOGUANINE AS A NANOSTRUCTURE LIPID CARRIER FOR THE TARGETED DELIVERY OF BREAST CANCER 将 6-硫鸟嘌呤作为纳米脂质载体用于乳腺癌靶向给药的制备和评估
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2024-05-07 DOI: 10.22159/ijap.2024v16i3.50379
Alaa A. Hashim, Dhiya Altememy, Hussein Abdelamir Mohammad, Hasanain Shakir Mahmood, Radhwan M. HUSSEIN, Mahsa Rezaei, Pegah Khosravian
Objective:  The main goal was to avoid all the problems associated with usual breast cancer treatment by using 6-thioguanine as a nanostructure lipid carrier (TG-NLCS). This was accomplished by administering an effective and targeted dose of 6-thioguanine (TG) to the tumour site using a long-lasting and biodegradable delivery system.Methods: A combination of heat homogenization and ultrasonication was used to implement the emulsification process. To obtain the optimal formulation, the prepared formulations were first assessed for particle size, Polydispersity Index (PDI), zeta potential, entrapment efficiency, and drug loading capacity. Additionally, a range of physicochemical characterization techniques were employed, including dissolution studies, melting point determination, Fourier-Transform Infrared (FTIR) spectroscopy, and Field Emission Scanning Electron Microscopy (FESEM), as well as cytotoxicity assessment of TG-NLCs in MCF-7 breast cancer cells.Results: The selected formula, TG03, showed a zeta potential of-13.5±0.27 mV and a particle size of 149±0.55 nm. This was further examined using a FESEM. In the in vitro drug release study, the formula demonstrated better-controlled drug release for 48 h in comparison to other formulations. In addition, the significant anti-proliferation activity of TG-NLCs against the MCF-7 breast cancer cell line.Conclusion: Nanostructured lipid carriers (NLCs) are one type of multifunctional nanoparticle that includes many combinations of lipids and medicines for various delivery routes.
研究目的 主要目的是利用纳米结构脂质载体(TG-NLCS)避免与常规乳腺癌治疗相关的所有问题。其方法是利用一种长效、可生物降解的给药系统,向肿瘤部位施用有效、靶向剂量的 6-硫鸟嘌呤 (TG):方法:采用热均质化和超声波相结合的方法实施乳化过程。为了获得最佳配方,首先对制备的配方进行了粒度、多分散指数(PDI)、ZETA电位、夹带效率和药物负载能力的评估。此外,还采用了一系列理化表征技术,包括溶解研究、熔点测定、傅立叶变换红外光谱(FTIR)和场发射扫描电子显微镜(FESEM),以及 TG-NLCs 在 MCF-7 乳腺癌细胞中的细胞毒性评估:所选配方 TG03 的 zeta 电位为-13.5±0.27 mV,粒径为 149±0.55 nm。使用 FESEM 对其进行了进一步检测。在体外药物释放研究中,与其他配方相比,该配方在 48 小时内显示出更好的药物释放控制。此外,TG-NLCs 对 MCF-7 乳腺癌细胞株具有明显的抗增殖活性:结论:纳米结构脂质载体(NLCs)是一种多功能纳米粒子,包括多种脂质和药物的组合,可用于各种给药途径。
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引用次数: 0
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International Journal of Applied Pharmaceutics
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