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PREPARATION AND EVALUATION OF LAFUTIDINE NANOEMULSION AS ORAL DELIVERY SYSTEM 制备和评估作为口服给药系统的拉呋替丁纳米乳液
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2024-05-07 DOI: 10.22159/ijap.2024v16i3.50206
Karrar T. KHUDHAIR ALBO HAMRAH, A. J. NEAMAH Al-SHAIBANI, Inas F. ABDULRAZZAQ
Objective: Lafutidine is a histamine (H2) receptor antagonist utilized for the treatment of gastric ulcer. Its oral bioavailability is low due to poor water solubility and an extensive first-pass hepatic. So, the present work aims to formulate and characterize of an oil in water (o/w) nanoemulsion of lafutidine as oral liquid dosage form and this could enhance drug solubility and improve its bioavailability.Methods: The pseudo-ternary phase diagrams were constructed via titration method. The diagram plots derived from oil, various ratios of surfactant and co-surfactant (S mix), and double distilled water. The selected optimized lafutidine nanoemulsions formula was determined via a variety of investigational studies like particle size, polydispersity index (PDI), zeta potential, pH, drug content and an in vitro drug release.Results: Characterization studies revealed that the optimum formula of nanoemulsions was (NE5), which consist of 0.2% of lafutidine, 30 % of surfactant and co-surfactant (S mix) (3:1), which mean (22.5%of tween 20:7.5% of polyethylene glycol 200 (PEG 200), 10% of peppermint oil and 59.4% of double distilled water. The optimized formula exhibited droplets size (62.56-96.2 nm), PDI (0.11), good pH value (7.1), zeta potential (-32.2 mV), high drug content (99.2%), in vitro release of lafutidine was significantly higher (P<0.05) for NE5. Scanning probe microscopy (SPM) revealed that the droplets size of NE5 was in nano-scale.Conclusion: It is possible to conclude that the optimized formula (NE5) was promised formula of nanoemulsion for increasing the orally delivered lafutidine bioavailability.
研究目的拉呋替丁是一种组胺(H2)受体拮抗剂,用于治疗胃溃疡。由于水溶性差和广泛的肝脏首过效应,其口服生物利用度较低。因此,本研究旨在配制拉呋替丁的水包油(o/w)纳米乳剂,并对其口服液剂型进行表征,从而提高药物溶解度和生物利用度:方法:通过滴定法构建伪三元相图。方法:通过滴定法构建了假三元相图,该相图由油、不同比例的表面活性剂和辅助表面活性剂(S 混合)以及双蒸馏水绘制而成。通过粒度、多分散指数(PDI)、ZETA电位、pH值、药物含量和体外药物释放等多项调查研究,确定了选定的优化拉呋替丁纳米乳剂配方:表征研究表明,纳米乳剂的最佳配方是 NE5,由 0.2% 的拉呋替丁、30% 的表面活性剂和辅助表面活性剂(S mix)(3:1)组成,即 22.5% 的吐温 20:7.5% 的聚乙二醇 200(PEG 200)、10% 的薄荷油和 59.4% 的双蒸水。优化后的配方显示出液滴大小(62.56-96.2 nm)、PDI(0.11)、良好的 pH 值(7.1)、ZETA 电位(-32.2 mV)、较高的药物含量(99.2%),NE5 的拉呋替丁体外释放率明显更高(P<0.05)。扫描探针显微镜(SPM)显示,NE5 的液滴尺寸为纳米级:可以得出结论,优化配方(NE5)是提高口服拉呋替丁生物利用度的理想纳米乳液配方。
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引用次数: 0
BIOSYNTHESIS, CHARACTERIZATION AND EVALUATION OF SILVER NANOPARTICLES FROM THE LEAF EXTRACT OF PREMNA INTIGRIFOLIA L. AS A POTENTIAL ANTICANCER AGENT 作为一种潜在抗癌剂的无花果树叶提取物银纳米粒子的生物合成、表征和评估
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2024-05-07 DOI: 10.22159/ijap.2024v16i3.50260
SPANDANA K., Arun K. Shettar, R. S.
Objective: In this study, plant-based silver nanoparticles were synthesized and characterized from Premna integrifolia leaf extract to test the viability towards anticancer properties.  Methods: Preliminary identification of silver nanoparticles was validated by Visual observation and confirmed for the characterization by Scanning Electron Microscopy (SEM), Energy Dispersive X-ray Spectroscopy (EDX) and Fourier-transform Infrared Spectroscopy (FTIR) analysis. Further synthesized nanoparticles were evaluated against non-small lung cancer cells (A549) by MTT (3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyl tetrazolium bromide) assay.Results: Aqueous leaf extract of Premna intigrifolia was synthesized for silver nanoparticles and showed an average size from 35nm to 100 nm through SEM studies. EDX showed a strong signal confirming the formation of silver nanoparticles in the metallic silver region at 5Kev, and the FTIR spectrum showed changes in some peaks of the aqueous extract with functional groups. The newly synthesized silver nanoparticles showed significant anticancer properties targeting lung cancer A549 cell line against standard drug Epotoside with a 50% Inhibitory Concentration (IC50) value of 78.431 µg.Conclusion: The results affirm that biosynthesized silver nanoparticles can be used as an alternative to chemical medicines to cure cancer.
研究目的本研究从 Premna integrifolia 叶提取物中合成了植物银纳米粒子,并对其进行了表征,以测试其抗癌活性。 方法:通过观察和验证银纳米颗粒的初步鉴定:通过肉眼观察对银纳米粒子进行初步鉴定,并通过扫描电子显微镜(SEM)、能量色散 X 射线光谱(EDX)和傅立叶变换红外光谱(FTIR)分析确认其特征。通过 MTT(3-[4,5-二甲基噻唑-2-基]-2,5-二苯基溴化四氮唑)检测法评估了进一步合成的纳米颗粒对非小肺癌细胞(A549)的作用:通过扫描电镜研究,银纳米粒子的平均尺寸为 35 纳米至 100 纳米。EDX 在 5Kev 处显示出强烈的信号,证实在金属银区域形成了银纳米粒子,傅立叶变换红外光谱显示出水提取物中一些带有官能团的峰值发生了变化。新合成的银纳米粒子对肺癌 A549 细胞株具有显著的抗癌作用,其 50%的抑制浓度(IC50)为 78.431 µg:研究结果表明,生物合成的银纳米粒子可替代化学药物治疗癌症。
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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
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。
{"title":"CHIRAL SWITCHING CONTROL OF PHARMACEUTICAL SUBSTANCES","authors":"Olga V. Levitskaya, T. Pleteneva, Daria A. Galkina, Nadezhda A. Khodorovich, E. Uspenskaya, Anton V. Syroeshkin","doi":"10.22159/ijap.2024v16i3.50481","DOIUrl":"https://doi.org/10.22159/ijap.2024v16i3.50481","url":null,"abstract":"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.\u0000Methods: 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.\u0000Results: 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.\u0000The 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.\u0000Conclusion: 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.","PeriodicalId":13737,"journal":{"name":"International Journal of Applied Pharmaceutics","volume":"11 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141004000","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
OSMOTIC DRUG DELIVERY SYSTEM OF NICORANDIL: DESIGN AND EVALUATION 尼可地尔渗透给药系统:设计与评估
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2024-05-07 DOI: 10.22159/ijap.2024v16i3.50298
Srilatha Choudhary, Cvs Subrahmanyam, K. Priyanka
Objective: The purpose of the current research was to design a nicorandil formulation with controlled drug release using the principles of osmotic pump technology. Nicorandil is a biopharmaceutical classification system (BCS) class 3 drug, having a shorter plasma elimination half-life and bioavailability of 75 to 80%.Methods: The elementary osmotic pump (EOP) was prepared by coating a cellulose acetate polymer on the prepared core tablet. A 24-factorial design was applied to optimize the parameters for the osmotic tablet. A surface orifice was drilled.Results: Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), and powder X-ray diffraction (PXRD) results showed that there was no interaction between drugs and excipients. A 24-factorial design was applied to optimize the parameters for the elementary osmotic pump. The optimized batch was characterized for in vitro drug release studies, and the effects of pH, osmotic pressure, and agitation intensity were analyzed. All the batches showed a drug release ranging from 90.48% to 98.78% after 12 hours. There was no change in the drug release pattern at different pHs and agitation intensities. The drug release was found to decrease with the increasing osmotic pressure of the dissolution medium. The results showed that the amounts of sodium chloride and mannitol were positively affecting the drug release, while the plasticizers PEG400 and DBP were not critical. Scanning electron microscopic studies (SEM) showed the integrity and surface morphology of the coating membrane before and after dissolution. The prepared EOP was found to deliver nicorandil at zero-order for up to 12 hours.Conclusion: Nicorandil was developed successfully as a controlled drug delivery during a 12-hour period, with variables optimized by the use of a 24-factorial design.
研究目的本研究的目的是利用渗透泵技术原理设计一种尼可地尔控释配方。尼可地尔是生物制药分类系统(BCS)的3类药物,其血浆消除半衰期较短,生物利用度为75%至80%:方法:在制备好的核心片剂上涂覆醋酸纤维素聚合物,制备基本渗透泵(EOP)。采用 24 因子设计来优化渗透片剂的参数。结果:傅立叶变换红外光谱(FTIR)、差示扫描量热法(DSC)和粉末 X 射线衍射(PXRD)结果表明,药物和辅料之间没有相互作用。采用 24 因子设计优化了基本渗透泵的参数。对优化后的批次进行了体外药物释放研究,分析了 pH 值、渗透压和搅拌强度的影响。12 小时后,所有批次的药物释放率均在 90.48% 至 98.78% 之间。在不同的 pH 值和搅拌强度下,药物释放模式没有变化。药物释放量随着溶解介质渗透压的增加而减少。结果表明,氯化钠和甘露醇的用量会对药物释放产生积极影响,而增塑剂 PEG400 和 DBP 并不重要。扫描电子显微镜研究(SEM)显示了溶解前后包衣膜的完整性和表面形态。研究发现,所制备的 EOP 可在长达 12 小时的时间内以零阶释放尼可地尔:结论:尼可地尔成功地开发出了 12 小时内可控给药的方法,并通过 24 因子设计对变量进行了优化。
{"title":"OSMOTIC DRUG DELIVERY SYSTEM OF NICORANDIL: DESIGN AND EVALUATION","authors":"Srilatha Choudhary, Cvs Subrahmanyam, K. Priyanka","doi":"10.22159/ijap.2024v16i3.50298","DOIUrl":"https://doi.org/10.22159/ijap.2024v16i3.50298","url":null,"abstract":"Objective: The purpose of the current research was to design a nicorandil formulation with controlled drug release using the principles of osmotic pump technology. Nicorandil is a biopharmaceutical classification system (BCS) class 3 drug, having a shorter plasma elimination half-life and bioavailability of 75 to 80%.\u0000Methods: The elementary osmotic pump (EOP) was prepared by coating a cellulose acetate polymer on the prepared core tablet. A 24-factorial design was applied to optimize the parameters for the osmotic tablet. A surface orifice was drilled.\u0000Results: Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), and powder X-ray diffraction (PXRD) results showed that there was no interaction between drugs and excipients. A 24-factorial design was applied to optimize the parameters for the elementary osmotic pump. The optimized batch was characterized for in vitro drug release studies, and the effects of pH, osmotic pressure, and agitation intensity were analyzed. All the batches showed a drug release ranging from 90.48% to 98.78% after 12 hours. There was no change in the drug release pattern at different pHs and agitation intensities. The drug release was found to decrease with the increasing osmotic pressure of the dissolution medium. The results showed that the amounts of sodium chloride and mannitol were positively affecting the drug release, while the plasticizers PEG400 and DBP were not critical. Scanning electron microscopic studies (SEM) showed the integrity and surface morphology of the coating membrane before and after dissolution. The prepared EOP was found to deliver nicorandil at zero-order for up to 12 hours.\u0000Conclusion: Nicorandil was developed successfully as a controlled drug delivery during a 12-hour period, with variables optimized by the use of a 24-factorial design.","PeriodicalId":13737,"journal":{"name":"International Journal of Applied Pharmaceutics","volume":"7 20","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141005058","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
THE APPLICATION OF BIOANALYTICAL METHOD OF TAMOXIFEN AND ITS ACTIVE METABOLITES FOR THERAPEUTIC DRUG MONITORING IN BREAST CANCER PATIENTS: A REVIEW 将他莫昔芬及其活性代谢物的生物分析方法应用于乳腺癌患者的治疗药物监测:综述
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2024-05-07 DOI: 10.22159/ijap.2024v16i3.49957
Muhammad Ikhsan, Y. Harahap
Breast cancer is the most common cancer around the world and in Indonesia. The most widely used agent for breast cancer treatment is tamoxifen, with a fixed dose of 20 mg per day. Tamoxifen is metabolized by cytochrome P450 3A4 (CYP3A4) and 2D6 (CYP2D6) to endoxifen and 4-hydroxytamoxifen, which have 30-to 100-fold more potent antiestrogenic activity than tamoxifen. High variations of CYP3A4 and CYP2D6 genes can lead to interpatient variability in its metabolites concentration. The dose can be increased to 40 or 60 mg per day based on individual needs. Therapeutic drug monitoring (TDM) is required to measure the concentration of tamoxifen and its metabolites to decide the individualized dose. The measurement of drug levels should use a sensitive, selective, accurate, precise, and reliable bioanalytical method. Various bioanalytical methods have been developed in several matrices: urine, scalp hair, serum, plasma, dried blood spot (DBS), and volumetric absorptive microsampling (VAMS) samples, with different sample preparations, and frequently using liquid chromatography-tandem mass spectrometry (LC-MS/MS). The bioanalytical method of tamoxifen and its metabolites in the DBS sample was more suitable in the TDM application due to the low invasive sampling technique, more stable sample, and rapid sample preparation. Therefore, it is more time-and cost-efficient than the other methods.
乳腺癌是全世界和印度尼西亚最常见的癌症。治疗乳腺癌最广泛使用的药物是他莫昔芬,每天固定剂量为 20 毫克。他莫昔芬通过细胞色素 P450 3A4 (CYP3A4) 和 2D6 (CYP2D6) 代谢为内昔芬和 4-羟基他莫昔芬,这两种药物的抗雌激素活性比他莫昔芬强 30 至 100 倍。CYP3A4 和 CYP2D6 基因的高度变异会导致其代谢物浓度在患者之间产生差异。可根据个人需要将剂量增加到每天 40 或 60 毫克。需要进行治疗药物监测(TDM),测量他莫昔芬及其代谢物的浓度,以决定个体化剂量。药物浓度的测量应采用灵敏、选择性强、准确、精确和可靠的生物分析方法。目前已开发出多种生物分析方法,适用于多种基质:尿液、头皮毛发、血清、血浆、干血斑(DBS)和体积吸收微采样(VAMS)样品,采用不同的样品制备方法,并经常使用液相色谱-串联质谱法(LC-MS/MS)。DBS 样品中他莫昔芬及其代谢物的生物分析方法由于采样技术的低侵入性、更稳定的样品和快速的样品制备而更适用于 TDM 应用。因此,与其他方法相比,该方法更省时省力。
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引用次数: 0
DESIGN AND OPTIMIZATION OF ESCITALOPRAM OXALATE ORAL DISSOLVING FILMS BY RESPONSE SURFACE METHODOLOGY 用响应面方法设计和优化草酸艾司西酞普兰口腔溶解膜
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2024-05-07 DOI: 10.22159/ijap.2024v16i3.49662
Chennupati Venu Babu, Venkata Ramana MURTHY KOLAPALLI
Objective: To develop and optimise the oral dissolving films of escitalopram oxalate by response surface methodology.Methods: Oral dissolving film compositions were optimized by central composite design. The films are prepared by solvent casting method. Initially, different polymers were screened and based on the results polyvinyl alcohol was selected as polymer, propylene glycol was selected as plasticizer. Concentration of polymer and concentration of plasticizer were fixed as independent variables; tensile strength, percent elongation, elastic modulus and amount dissolved up to 5 min (%D5 min) were taken as responses.Results: The prepared films exhibited good surface characteristics. The thickness, uniformity of weight, surface pH and drug content are within acceptable range. The mechanical properties like tensile strength, folding endurance, percent elongation and elastic modulus were determined. The statistical analysis showed that polymer concentration has a positive effect on disintegration time and the plasticizer concentration has a significant effect on folding endurance. The prepared film relesases nearly 95% at the end of 5 min. The design space was used to optimize the quantities of polymer and plasticizer. The comparison of checkpoint experiment batch responses are corelating with the predicted responses.Conclusion: Escitalopram oxalate oral dissolving films was successfully designed and optimized by response surface method. It was concluded that the prepared films exhibit good mechanical properties and maximum release within 10 min.
目的:采用响应面方法开发和优化草酸艾司西酞普兰口腔溶解膜:采用响应面方法开发和优化草酸艾司西酞普兰口腔溶解膜:方法:采用中心复合设计法优化口腔溶解膜成分。薄膜采用溶剂浇铸法制备。首先筛选了不同的聚合物,根据筛选结果,选择聚乙烯醇作为聚合物,丙二醇作为增塑剂。聚合物浓度和增塑剂浓度被定为自变量;拉伸强度、伸长率、弹性模量和 5 分钟内的溶解量(%D5 min)被定为响应变量:制备的薄膜具有良好的表面特性。厚度、重量均匀性、表面 pH 值和药物含量都在可接受的范围内。测定了拉伸强度、耐折度、伸长率和弹性模量等机械性能。统计分析显示,聚合物浓度对崩解时间有积极影响,增塑剂浓度对耐折性有显著影响。所制备的薄膜在 5 分钟后的再释放率接近 95%。设计空间用于优化聚合物和增塑剂的用量。检查点实验批次反应与预测反应的比较结果一致:结论:草酸艾司西酞普兰口腔溶解膜采用响应面法成功地进行了设计和优化。结论:采用响应面法成功设计并优化了草酸艾司西酞普兰口腔溶解膜,所制备的薄膜具有良好的机械性能,并能在 10 分钟内达到最大释放量。
{"title":"DESIGN AND OPTIMIZATION OF ESCITALOPRAM OXALATE ORAL DISSOLVING FILMS BY RESPONSE SURFACE METHODOLOGY","authors":"Chennupati Venu Babu, Venkata Ramana MURTHY KOLAPALLI","doi":"10.22159/ijap.2024v16i3.49662","DOIUrl":"https://doi.org/10.22159/ijap.2024v16i3.49662","url":null,"abstract":"Objective: To develop and optimise the oral dissolving films of escitalopram oxalate by response surface methodology.\u0000Methods: Oral dissolving film compositions were optimized by central composite design. The films are prepared by solvent casting method. Initially, different polymers were screened and based on the results polyvinyl alcohol was selected as polymer, propylene glycol was selected as plasticizer. Concentration of polymer and concentration of plasticizer were fixed as independent variables; tensile strength, percent elongation, elastic modulus and amount dissolved up to 5 min (%D5 min) were taken as responses.\u0000Results: The prepared films exhibited good surface characteristics. The thickness, uniformity of weight, surface pH and drug content are within acceptable range. The mechanical properties like tensile strength, folding endurance, percent elongation and elastic modulus were determined. The statistical analysis showed that polymer concentration has a positive effect on disintegration time and the plasticizer concentration has a significant effect on folding endurance. The prepared film relesases nearly 95% at the end of 5 min. The design space was used to optimize the quantities of polymer and plasticizer. The comparison of checkpoint experiment batch responses are corelating with the predicted responses.\u0000Conclusion: Escitalopram oxalate oral dissolving films was successfully designed and optimized by response surface method. It was concluded that the prepared films exhibit good mechanical properties and maximum release within 10 min.","PeriodicalId":13737,"journal":{"name":"International Journal of Applied Pharmaceutics","volume":"2 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141003923","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 AND OPTIMIZATION OF SUPER SATURABLE SELF-NANO EMULSIFYING DRUG DELIVERY SYSTEM FOR DASATINIB BY DESIGN OF EXPERIMENT 通过实验设计开发和优化达沙替尼的超饱和自纳米乳化给药系统
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2024-05-07 DOI: 10.22159/ijap.2024v16i3.50434
C. Rajinikanth, K. Kathiresan
Objective: In current research, Self-Nanoemulsifying Super Saturable Drug Delivery Systems S‑SNEDDS was formulated to attain superior drug dissolution and stability.Methods: Using saturated solubility, capryol ® 90, cremophor®-EL, and transcutol HP were used to make S-SNEDDS. Its composition was optimized using the ternary phase diagram. Using the central composite design of Response Surface Methodology, dasatinib-SNEDDS developed responses for droplet size (Y1), polydispersity index (Y2), and % drug released in 15 min (Y3). Various Precipitation Inhibitors were added to optimize SNEDDS (S3) to make S-SNEDDS and evaluate.Results: The optimum formulation was S3, with a particle size of 128 nm and zeta potential of-21 mV. Methylcellulose was shown better supersaturation than other inhibitors. The optimized formulation (F3) was more stable than ordinary SNEDDS due to its more significant zeta potential (-25 mV) and lower particle size (128 nm). Dasatinib was shown to be amorphous in S-SNEDDS using Differential Scanning Calorimetry and X-ray Powder Diffraction. F3 had a higher 90 min release rate (>99%) than pure drug dispersion (26%) and SNEDDS formulation (95%).Conclusion: The results concluded that S-SNEDDS formulation successfully enhanced the dissolution and stability of dasatinib.
研究目的本研究配制了自纳米乳化超饱和给药系统 S-SNEDDS,以获得优异的药物溶解性和稳定性:方法:利用饱和溶解度,使用 capryol ® 90、cremophor®-EL 和 transcutol HP 制成 S-SNEDDS。利用三元相图对其组成进行了优化。采用响应面方法的中心复合设计,达沙替尼-SNEDDS 对液滴大小(Y1)、多分散指数(Y2)和 15 分钟内药物释放率(Y3)产生了响应。在优化的 SNEDDS(S3)中添加了各种沉淀抑制剂,以制成 S-SNEDDS 并进行评估:最佳配方为 S3,粒径为 128 nm,zeta 电位为 21 mV。甲基纤维素的过饱和度优于其他抑制剂。优化制剂(F3)的zeta电位(-25 mV)更高,粒径(128 nm)更小,因此比普通SNEDDS更稳定。差示扫描量热法和 X 射线粉末衍射显示达沙替尼在 S-SNEDDS 中为无定形。F3的90分钟释放率(>99%)高于纯药物分散体(26%)和SNEDDS制剂(95%):结果表明,S-SNEDDS制剂成功地提高了达沙替尼的溶解度和稳定性。
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引用次数: 0
EFFECT OF POLYMER CONCENTRATION AND SURFACTANTS ON PHYSICAL CHARACTERISTICS, DRUG RELEASE AND ANTIOXIDANT ACTIVITY OF GLUTATHIONE-KAPPA CARRAGEENAN NANOSPHERES 聚合物浓度和表面活性剂对谷胱甘肽-卡帕卡拉胶纳米球的物理特性、药物释放和抗氧化活性的影响
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2024-05-07 DOI: 10.22159/ijap.2024v16i3.49242
Yuyun Nailufa, Bambang Widjaja
Objective: Glutathione is one of the antioxidants widely used as an antiaging and skin lightener. Glutathione at a dose of 250 mg/d orally proved useful as an antiaging. At the same time, glutathione topical night cream is effective at a dose of 0.1% for the skin of Indonesian women. Glutathione is one of the antioxidants that has easily oxidized properties in storage. Research purpose to optimize the concentration of kappa carrageenan polymer and surfactan to obtain the optimal physical characteristics of nanosphere system analyzed based on size, PDI, yield, drug loading, entrapment efficiency, dissolution and antioxidant activity.Methods: The most commonly used method of making nanospheres is ionotropic gelation because it has proven effective, easy, and easy to apply. Ionotropic gelation is depend on the tendency of polyelectrolytes to cross connect to develop hydrogel beads often called gelispheres in the existence of counter ions. Nanospheres were prepared by aerosolization ionotropic gelation technique followed by freeze-drying. This method uses carrageenan polymers of 0.5% and 1.0% with the addition of surfactant as a stabilizer. Evaluation parameters are particle size, entrapment efficiency, drug loading, drug release and antioxidant activity.Results: The results of the nanospheres obtained were tested physically and drug activity. Nanospheres successfully formed, with size 382.67±52.24 nm, F2 325.20±4.62 nm, F3 495.39±30.61 nm, and F4 409.80±4.11 nm. The greater the polymer concentration, the greater the value of entrapment efficiency and drug content in the nanosphere. The morphology of the nanosphere is quite good, spherical, with a smooth surface. The release profile shows that glutathione release is quite good but takes a long time, namely F1 73.91±2.17%, F2 75.91±2.76%, F3 78.56±2.82%, and F4 79.56±1.34% in 480 min or 8 h. Antioxidant activity of glutathione-Kappa carrageenan nanospheres with the DPPH method showed that nanospheres have medium or medium category antioxidant activity.Conclusion: The most optimal formula is F4 with 1% kappa-carrageenan concentration and 0.6% KCl.
目的谷胱甘肽是被广泛用作抗衰老和美白剂的抗氧化剂之一。口服 250 毫克/天剂量的谷胱甘肽被证明具有抗衰老作用。同时,谷胱甘肽外用晚霜的剂量为 0.1%,对印尼妇女的皮肤有效。谷胱甘肽是一种抗氧化剂,在储存过程中很容易被氧化。研究目的是优化卡帕卡拉胶聚合物和表面活性剂的浓度,以获得纳米球系统的最佳物理特性,并根据尺寸、PDI、产量、载药量、夹带效率、溶解度和抗氧化活性进行分析:制作纳米球最常用的方法是离子凝胶法,因为事实证明这种方法有效、简便、易于应用。离子凝胶化取决于聚电解质在有反离子存在时交联形成水凝胶珠(通常称为凝胶球)的趋势。纳米球是通过气溶胶离子凝胶技术制备的,然后进行冷冻干燥。该方法使用 0.5% 和 1.0% 的卡拉胶聚合物,并添加表面活性剂作为稳定剂。评估参数包括粒度、夹持效率、药物负载、药物释放和抗氧化活性:对获得的纳米球进行了物理和药物活性测试。成功形成的纳米球粒径为 382.67±52.24 nm,F2 为 325.20±4.62 nm,F3 为 495.39±30.61 nm,F4 为 409.80±4.11 nm。聚合物浓度越大,纳米球的包埋效率和药物含量值越高。纳米球的形态良好,呈球形,表面光滑。谷胱甘肽-Kappa 卡拉胶纳米球的抗氧化活性采用 DPPH 法,结果表明纳米球具有中等或中等偏上的抗氧化活性:最理想的配方是含有 1%卡帕卡拉胶和 0.6%氯化钾的 F4。
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引用次数: 0
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International Journal of Applied Pharmaceutics
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