Fabrication and characterization of spearmint oil loaded nanoemulsions as cytotoxic agents against oral cancer cell
Publication date: Available online 16 March 2018Source: Asian Journal of Pharmaceutical SciencesAuthor(s): Sukannika Tubtimsri, Chutima Limmatvapirat, Siripan Limsirichaikul, Prasert Akkaramongkolporn, Yutaka Inoue, Sontaya LimmatvapiratAbstractSpearmint oil (SMO), a commonly used essential oil for oral care products, possesses various interesting functions, especially for anticancer property. However, the application of SMO for cancer treatment is limited due to water insoluble. In the present study, nanoemulsions, which have been widely accepted as dosage forms for poorly water-soluble drugs, were selected as candidate c...
Source: Asian Journal of Pharmaceutical Sciences - July 10, 2018 Category: Drugs & Pharmacology Source Type: research

Physicochemical properties of β-cyclodextrin solutions and precipitates prepared from injectable vehicles
Publication date: Available online 16 March 2018Source: Asian Journal of Pharmaceutical SciencesAuthor(s): Sai Myo Thurein, Nutdanai Lertsuphotvanit, Thawatchai PhaechamudAbstractβ-Cyclodextrin (β-CyD) is cyclic oligosaccharide of a glucopyranose, containing a relatively hydrophobic central cavity and hydrophilic outer surface. However, the usefulness of β-CyD is limited owing to its low aqueous solubility whereas we found that its apparent high solubility was evident in some injectable solvents including 2-pyrrolidone (PYR), N-methyl pyrrolidone (NMP) and dimethyl sulfoxide (DMSO). Therefore, in the present study, the ...
Source: Asian Journal of Pharmaceutical Sciences - July 10, 2018 Category: Drugs & Pharmacology Source Type: research

The effect of surfactant on the physical properties of coconut oil nanoemulsions
Publication date: Available online 17 March 2018Source: Asian Journal of Pharmaceutical SciencesAuthor(s): Sirikarn Pengon, Nawinda Chinatangkul, Chutima Limmatvapirat, Sontaya LimmatvapiratAbstractThe aim of this study was to develop the water compatible form of coconut oil through nano-emulsification. The effect of different types and amounts of surfactants on the physical characteristics of nanoemulsions containing coconut oil was investigated. Coconut oil nanoemulsions containing varied amounts of surfactants including polyethylene glycol octyl phenyl ether (PGO), polyoxyethylene sorbitan monostearate (POS), polyethyle...
Source: Asian Journal of Pharmaceutical Sciences - July 10, 2018 Category: Drugs & Pharmacology Source Type: research

Enhanced digestion inhibition and mucus penetration of F127-modified self-nanoemulsions for improved oral delivery
Publication date: Available online 17 March 2018Source: Asian Journal of Pharmaceutical SciencesAuthor(s): Wenyi Song, Yuting Yang, Miaorong Yu, Quanlei Zhu, Mohammadali Soleimani Damaneh, Haijun Zhong, Yong GanAbstractSelf-nanoemulsifying systems (SNEs) have excellent ability to improve the solubility of poorly water-soluble drugs (PWSD). However, SNEs are likely to be degraded in gastrointestinal (GIT) when their surface is recognized by lipase/co-lipase enzyme complex, resulting in rapid release and precipitation of encapsulated drugs. The precipitates are then captured and removed by intestinal mucus, reducing the deli...
Source: Asian Journal of Pharmaceutical Sciences - July 10, 2018 Category: Drugs & Pharmacology Source Type: research

Co-delivery of resveratrol and docetaxel via polymeric micelles to improve the treatment of drug-resistant tumors
This study was aiming to investigate the potential of concurrent delivery of resveratrol (RES) and docetaxel (DTX) via polymeric nanocarriers to treat breast cancer. To this end, methoxyl poly(ethylene glycol)-poly(d,l-lactide) copolymer (mPEG-PDLA) was prepared and characterized using FTIR and 1H NMR, and their molecular weights were determined by GPC. Isobologram analysis and combination index calculation were performed to find the optimal ratio between RES and DTX to against human breast adenocarcinoma cell line (MCF-7 cells). Subsequently, RES and DTX were loaded in the mPEG-PDLA micelles simultaneously, and the morpho...
Source: Asian Journal of Pharmaceutical Sciences - July 10, 2018 Category: Drugs & Pharmacology Source Type: research

Vesicular carriers containing phenylethyl resorcinol for topical delivery system; liposomes, transfersomes and invasomes
Publication date: Available online 17 March 2018Source: Asian Journal of Pharmaceutical SciencesAuthor(s): Thanaporn Amnuaikit, Tunyaluk Limsuwan, Pasarat Khongkow, Prapaporn BoonmeAbstractTopical administration of phenylethyl resorcinol (PR) has attracted much attention as skin lightening agent with potent anti-tyrosinase activity. Two novel types of elastic carriers were developed to overcome the limitation of PR as topical delivery by increasing the solubility, stability and decreasing skin irritation compared to conventional liposomes. In addition, it also promotes skin penetration of PR to reach deep skin layer at the...
Source: Asian Journal of Pharmaceutical Sciences - July 10, 2018 Category: Drugs & Pharmacology Source Type: research

Use of seed gums from Tamarindus indica and Cassia fistula as controlled-release agents
The objective of the present study was to characterize and evaluate crude and carboxymethylated gums from T. indica and C. fistula seeds to achieve the controlled-release of diclofenac sodium (DS) in matrix tablet form. Both crude and carboxymethylated gums were characterized by Fourier transform infrared spectroscopy, X-ray diffraction, and scanning electron microscopy. The results revealed that the gums were successfully modified by carboxymethylation and that the modified gums were amorphous in structure and had better flow properties. The carboxymethylated gums from both plant seeds did not exhibit cytotoxicity at conc...
Source: Asian Journal of Pharmaceutical Sciences - July 10, 2018 Category: Drugs & Pharmacology Source Type: research

Novel technique of insulin loading into porous carriers for oral delivery
In this study, we prepared chitosan coated porous poly (d, l-lactide-co-glycolide) (PLGA) microparticles (MPs) loaded with insulin using a novel loading technique; double freeze-drying. The results showed a significant increase in drug loading using only 5 mg/ml initial insulin concentration and conveyed a sustained drug release over uncoated MPs. Furthermore, SEM and confocal microscopy confirmed pore blocking and insulin accumulation within the MPs respectively. The oral pharmacodynamic data on rats also proved the preservation of insulin bioactivity after formulation. Finally, the new coating technique proved to be ef...
Source: Asian Journal of Pharmaceutical Sciences - July 10, 2018 Category: Drugs & Pharmacology Source Type: research

Disulfiram thermosensitive in-situ gel based on solid dispersion for cataract
Publication date: Available online 23 April 2018Source: Asian Journal of Pharmaceutical SciencesAuthor(s): Chunjuan Zhang, Tonghua Xu, Donglei Zhang, Wei He, Siling Wang, Tongying JiangAbstractTo improve the corneal permeability and water-solubility of disulfiram (DSF), which is an ocular drug for cataract, P188 was selected as a matrix to prepare solid dispersion of DSF (DSFSD) by hot melt method. The DSFSD was characterized by DSC, XRD, and IR, and the results suggested that DSF was amorphous in DSFSD. The DSFSD was added to borate buffer solution (BBS) contained 20% poloxamer P407 and 1.2% poloxamer P188 to form in-situ...
Source: Asian Journal of Pharmaceutical Sciences - July 10, 2018 Category: Drugs & Pharmacology Source Type: research

Investigating the molecular dissolution process of binary solid dispersions by molecular dynamics simulations
Publication date: May 2018Source: Asian Journal of Pharmaceutical Sciences, Volume 13, Issue 3Author(s): TengIan Chan, Defang OuyangAbstractDissolution molecular mechanism of solid dispersions still remains unclear despite thousands of reports about this technique. The aim of current research was to investigate the molecular dissolution mechanism of solid dispersions by molecular dynamics simulations. The formation of ibuprofen/polymer solid dispersions was modeled by the simulated annealing method. After that, the models of solid dispersions were immersed into the water box with 25–30 Å thicknesses and 50–100 ns MD...
Source: Asian Journal of Pharmaceutical Sciences - July 10, 2018 Category: Drugs & Pharmacology Source Type: research

Systematically optimized topical delivery system for Loperamide hydrochloride: Formulation design, in vitro and in vivo biopharmaceutical evaluation
This study aimed to develop a suitable topical delivery system containing diethylene glycol monoethyl ether (DGME) for Loperamide hydrochloride (Lop). Two factors, three levels Central-Composite design were applied by generating a quadratic polynomial equation to form contour plots and response surface for prediction of responses as two selected independent variables with EtOH-DGME ratio and EtOH concentration. The response variables flux and skin retention were determined in in vitro hairless mouse skin model. The selected optimum formulation was evaluated for the skin transport characteristics by developing dermatokineti...
Source: Asian Journal of Pharmaceutical Sciences - July 10, 2018 Category: Drugs & Pharmacology Source Type: research

Model evaluation for the prediction of solubility of active pharmaceutical ingredients (APIs) to guide solid–liquid separator design
Publication date: May 2018Source: Asian Journal of Pharmaceutical Sciences, Volume 13, Issue 3Author(s): Kuveneshan Moodley, Jürgen Rarey, Deresh RamjugernathAbstractThe assumptions and models for solubility modelling or prediction in systems using non-polar solvents, or water and complex triterpene and other active pharmaceutical ingredients as solutes aren't well studied. Furthermore, the assumptions concerning heat capacity effects (negligibility, experimental values or approximations) are explored, using non-polar solvents (benzene), or water as reference solvents, for systems with solute melting points in the range o...
Source: Asian Journal of Pharmaceutical Sciences - July 10, 2018 Category: Drugs & Pharmacology Source Type: research

LAL test and RPT for endotoxin detection of CPT-11/DSPE-mPEG2000 nanoformulation: What if traditional methods are not applicable?
Publication date: May 2018Source: Asian Journal of Pharmaceutical Sciences, Volume 13, Issue 3Author(s): Yanan Jin, Juanjuan Jia, Chan Li, Jianqi Xue, Jiabei Sun, Kaiyuan Wang, Yaling Gan, Jing Xu, Yaqin Shi, Xingjie LiangAbstractEndotoxin detection is an important step in drug characterization. Herein we found that a chemotherapeutic drug nanoformulation composed of irinotecan hydrochloride (CPT-11) and an amphiphilic molecule DSPE-mPEG2000 can interfere with the limulus amebocyte lysate assay (LAL). Furthermore, the rabbit pyrogen test (RPT) results indicated that at a relatively high dosage, the drug irinotecan hydrochl...
Source: Asian Journal of Pharmaceutical Sciences - July 10, 2018 Category: Drugs & Pharmacology Source Type: research

Activity of Brucea javanica oil emulsion against gastric ulcers in rodents
Publication date: May 2018Source: Asian Journal of Pharmaceutical Sciences, Volume 13, Issue 3Author(s): Qian Li, Linglong Yang, Linlin Fan, Chen Liang, Qiujv Wang, Huimin Wen, Jinwei Dai, Xin Li, Yuyang ZhangAbstractThe present study aims to investigate the gastroprotective effect of Brucea javanica oil emulsion (BJOE) in animals. Gastroprotective potential of BJOE was studied on absolute ethanol, aspirin, reserpine and restraint plus water immersion-induced gastric ulcers in mice as well as glacial acetic acid (GAA) and pyloric ligation (PL)-induced gastric ulcers in rats. Except for ulcer scores, total acidity as well a...
Source: Asian Journal of Pharmaceutical Sciences - July 10, 2018 Category: Drugs & Pharmacology Source Type: research

Glycosylated and non-glycosylated quantum dot-displayed peptides trafficked indiscriminately inside lung cancer cells but discriminately sorted in normal lung cells: An indispensable part in nanoparticle-based intracellular drug delivery
Publication date: May 2018Source: Asian Journal of Pharmaceutical Sciences, Volume 13, Issue 3Author(s): Roger Salvacion TanAbstractDifference in sub-cellular trafficking of glycosylated and naked peptides, between normal and lung cancer cells, was established. Normal lung tissue discriminately sorted glycosylated from non-glycosylated peptides by allowing golgi localization of the glycosylated peptides while restricting golgi entry of the naked peptides. This mechanism was surprisingly not observed in its cancer cell counterpart. Lung cancer cells tend to allow unrestricted localization of both glycosylated and naked pept...
Source: Asian Journal of Pharmaceutical Sciences - July 10, 2018 Category: Drugs & Pharmacology Source Type: research