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Wang X, Qiu H, Chu C, Wang K, Lu B, Yang C, Liu B, Lan G, Ding W. Dual-Responsive Microsphere Based on Natural Sunflower Pollen for Hemostasis and Repair in Inflammatory Bowel Disease. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38856560 DOI: 10.1021/acsami.4c02408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
Noninvasive treatment of inflammatory bowel disease with lower gastrointestinal bleeding is a major clinical challenge. In this study, we designed an orally targeted microsphere based on sunflower pollen microcapsules to localize the site of inflammatory injury and promote hemostasis and tissue repair. Due to the Eudragit and ascorbate palmitate coatings, EL/AP@PS(t+Dex) demonstrates pH- and enzyme-responsive release of loaded drugs and helps to resist the harsh environment of the gastrointestinal tract. Both in vitro and in vivo experiments show the characteristics of inflammation targeting and mucosal adhesion, which reduce the systematic exposure and increase the local drug concentration. In the DSS model, orally administered EL/AP@PS(t+Dex) significantly alleviates hematochezia, inhabits intestinal inflammation, and remarkably promotes the recovery of the intestinal epithelial barrier to reduce the exposure of intestinal microvessels. Furthermore, EL/AP@PS(t+Dex) optimized the composition of intestinal microbiota, which benefits intestinal homeostasis. This finding provides a fundamental solution for the treatment of intestinal bleeding caused by inflammatory bowel disease (IBD).
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Affiliation(s)
- Xinyu Wang
- Division of Trauma and Acute Care Surgery, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, Jiangsu Province, China
| | - Haoyu Qiu
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing 400715, China
- National Engineering Research Center for Biomaterials, School of Biomedical Engineering, Sichuan University, Chengdu 610064, China
| | - Chengnan Chu
- Division of Trauma and Acute Care Surgery, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, Jiangsu Province, China
| | - Kai Wang
- Division of Trauma and Acute Care Surgery, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, Jiangsu Province, China
| | - Bitao Lu
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing 400715, China
| | - Chao Yang
- Division of Trauma and Acute Care Surgery, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, Jiangsu Province, China
| | - Baochen Liu
- Division of Trauma and Acute Care Surgery, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, Jiangsu Province, China
| | - Guangqian Lan
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture, Textile and Biomass Sciences, Southwest University, Chongqing 400715, China
| | - Weiwei Ding
- Division of Trauma and Acute Care Surgery, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, Jiangsu Province, China
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Vieira WT, Viegas JSR, da Silva MGC, de Oliveira Nascimento L, Vieira MGA, Sarmento B. Self-assembly mucoadhesive beads of κ-carrageenan/sericin for indomethacin oral extended release. Int J Biol Macromol 2024; 270:132062. [PMID: 38705340 DOI: 10.1016/j.ijbiomac.2024.132062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 04/27/2024] [Accepted: 05/01/2024] [Indexed: 05/07/2024]
Abstract
Oral drug administration, especially when composed of mucoadhesive delivery systems, has been a research trend due to increased residence time and contact with the mucosa, potentially increasing drug bioavailability and stability. In this context, this study aimed to develop self-assembly mucoadhesive beads composed of blends of κ-carrageenan and sericin (κ-Car/Ser) loaded with the anti-inflammatory drug indomethacin (IND). We investigated the swelling, adhesion behaviour, and mechanical/physical properties of the beads, assessing their effects on cell viability, safety and permeation characteristics in both 2D and triple-culture model. The swelling ratio of the beads indicated pH-responsiveness, with maximum water absorption at pH 6.8, and strong mucoadhesion, increasing primarily with higher polymer concentrations. The beads exhibited thermal stability and no chemical interaction with IND, showing improved mechanical properties. Furthermore, the beads remained stable during accelerated and long-term storage studies. The beads were found to be biocompatible, and IND encapsulation improved cell viability (>70 % in both models, 79 % in VN) and modified IND permeation through the models (6.3 % for F5 formulation (κ-Car 0.90 % w/v | Ser 1.2 % w/v| IND 3.0 g); 10.9 % for free IND, p < 0.05). Accordingly, κ-Car/Ser/IND beads were demonstrated to be a promising IND drug carrier to improve oral administration while mitigating the side effects of non-steroidal anti-inflammatories.
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Affiliation(s)
- Wedja Timóteo Vieira
- University of Campinas, School of Chemical Engineering, Av. Albert Einstein, 500, Cidade Universitária "Zeferino Vaz", Campinas, SP 13083-852, Brazil
| | - Juliana Santos Rosa Viegas
- i3S - Institute for Research & Innovation in Health, University of Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal
| | - Meuris Gurgel Carlos da Silva
- University of Campinas, School of Chemical Engineering, Av. Albert Einstein, 500, Cidade Universitária "Zeferino Vaz", Campinas, SP 13083-852, Brazil
| | - Laura de Oliveira Nascimento
- University of Campinas, School of Pharmaceutical Sciences, Rua Cândido Portinari, 200, Cidade Universitária "Zeferino Vaz", Campinas, SP 13083-871, Brazil
| | - Melissa Gurgel Adeodato Vieira
- University of Campinas, School of Chemical Engineering, Av. Albert Einstein, 500, Cidade Universitária "Zeferino Vaz", Campinas, SP 13083-852, Brazil.
| | - Bruno Sarmento
- i3S - Institute for Research & Innovation in Health, University of Porto, Rua Alfredo Allen, 208, 4200-135 Porto, Portugal; IUCS-CESPU, Rua Central de Gandra 1317, 4585-116 Gandra, Portugal
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Vieira WT, da Silva MGC, de Oliveira Nascimento L, Vieira MGA. Development and characterization of crosslinked k-carrageenan/sericin blend with covalent agents or thermal crosslink for indomethacin extended release. Int J Biol Macromol 2023; 246:125558. [PMID: 37392907 DOI: 10.1016/j.ijbiomac.2023.125558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 06/03/2023] [Accepted: 06/23/2023] [Indexed: 07/03/2023]
Abstract
Modified release of multiparticulate pharmaceutical forms is a key therapeutic strategy to reduce side effects and toxicity caused by high and repeated doses of immediate-release oral drugs. This research focused on the encapsulation of indomethacin (IND) in the crosslinked k-Car/Ser polymeric matrix by covalent and thermal methods to evaluate drug delivery modulation and properties of the crosslinked blend. Therefore, the entrapment efficiency (EE %), drug loading (DL %) and physicochemical properties of the particles were investigated. The particles presented a spherical shape and a rough surface with a mean diameter of 1.38-2.15 mm (CCA) and 1.56-1.86 mm (thermal crosslink). FTIR investigation indicated the presence of IDM in the particles and X-ray pattern showed the maintenance of crystallinity of IDM. The in vitro release in acidic medium (pH 1.2) and phosphate buffer saline solution (pH 6.8) was 1.23-6.81 % and 81-100 %, respectively. Considering the results, the formulations remained stable after 6 months. The Weibull equation was adequately fitted for all formulations and a diffusion mechanism, swelling and relaxation of chain were observed. IDM-loaded k-carrageenan/sericin/CMC increases cell viability (> 75 % for neutral red and > 81 % for MTT). Finally, all formulations present gastro-resistance, pH response and altered release and have the potential to be used as drug delivery careers.
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Affiliation(s)
- Wedja Timóteo Vieira
- University of Campinas, School of Chemical Engineering, Albert Einstein Av., 500, Cidade Universitária "Zeferino Vaz", Campinas, SP 13083-852, Brazil
| | - Meuris Gurgel Carlos da Silva
- University of Campinas, School of Chemical Engineering, Albert Einstein Av., 500, Cidade Universitária "Zeferino Vaz", Campinas, SP 13083-852, Brazil
| | - Laura de Oliveira Nascimento
- University of Campinas, School of Pharmaceutical Sciences, Cândido Portinari, St. 200, Cidade Universitária "Zeferino Vaz", Campinas, SP 13083-871, Brazil
| | - Melissa Gurgel Adeodato Vieira
- University of Campinas, School of Chemical Engineering, Albert Einstein Av., 500, Cidade Universitária "Zeferino Vaz", Campinas, SP 13083-852, Brazil.
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Shan W, Peng F, Shen Q, Zhang J. Preparation and evaluation in vitro and in vivo of pristinamycin enteric-coated granules based on albumin nanoparticles. Drug Dev Ind Pharm 2023; 49:84-91. [PMID: 36803496 DOI: 10.1080/03639045.2023.2182602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
CONTEXT The purpose of this study was to prepare enteric-coated particles based on albumin nanoparticles (NPs) using a mixture of PIA albumin NPs freeze-dried powder (PA-PIA) and PIIA albumin NPs freeze-dried powder (PA-PIIA) to improve the bioavailability effect of pristinamycin. OBJECTIVE This is the first study on the preparation of pristinamycin into enteric-coated granules based on albumin NPs, and our study has effectively improved the bioavailability of pristinamycin and ensured its safety. METHODS Pristinamycin albumin enteric-coated granules (PAEGs) were prepared by hybrid wet granulation. The characterizations of albumin NPs were performed by in vitro and in vivo studies of PAEGs. The assays were analyzed using zeta-sizer, transmission electron microscopy, high-performance liquid chromatography, and a fully automated biochemical index analyzer. RESULTS The morphology of NPs was close to spherical. PIA-NPs and PIIA-NPs respectively had a zeta potential of (-24.33 ± 0.75) mV and (+7.30 ± 0.27) mV and mean size of (251.91 ± 19.64) nm and (232.83 ± 22.61) nm. The release of PIA and PIIA from PAEGs in the artificial gastrointestinal fluid was as high as 58.46% and 87.79%. In the experimental group of oral PAEGs, PIA and PIIA were AUC(0-t) (3.68 ± 0.58) mg·L-1·h-1 and (2.81 ± 1.06) mg·L-1·h-1. The results of aspartate aminotransferase and alanine aminotransferase biochemical indices showed that there was no significant difference between the experimental and normal groups of oral PAEGs. CONCLUSION The PAEGs significantly increased the release of PIA and PIIA in simulated intestinal fluid and improved the bioavailability. The oral administration of PAEGs may not damage the liver of rats. We hope that our study will promote its industrial development or clinical application.
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Affiliation(s)
- Wanxin Shan
- School of Pharmacy, Dali University, Dali, China
| | - Fang Peng
- School of Pharmacy, Dali University, Dali, China
| | - Qi Shen
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Jun Zhang
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
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Carbohydrate Polymer-Based Targeted Pharmaceutical Formulations for Colorectal Cancer: Systematic Review of the Literature. POLYSACCHARIDES 2022. [DOI: 10.3390/polysaccharides3040040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Colon cancer is the third most diagnosed cancer worldwide, followed by lung and breast cancer. Conventional treatment methods are associated with numerous side effects and compliance issues. Thus, colon targeted drug delivery has gained much attention due to its evident advantages. Although many technologies have been explored, the use of pH-sensitive polymers, especially biodegradable polymers, holds exceptional promise. This review aims to collate research articles concerning recent advances in this area. A systematic search using multiple databases (Google Scholar, EMBASE, PubMed, MEDLINE and Scopus) was carried out following the preferred reported items for systematic reviews and meta-analyses (PRISMA) guidelines with an aim to explore the use of pH-sensitive carbohydrate polymers in developing colon targeted pharmaceutical formulations. Following screening and quality assessment for eligibility, 42 studies were included, exploring either single or a combination of carbohydrate polymers to develop targeted formulations for colon cancer therapy. Pectin (11) is the most widely used of these biopolymers, followed by chitosan (09), alginate (09) and guar gum (08). This systematic review has successfully gathered experimental evidence highlighting the importance of employing carbohydrate polymers in developing targeting formulations to manage colon cancer.
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Characteristics of Probiotic Preparations and Their Applications. Foods 2022; 11:foods11162472. [PMID: 36010472 PMCID: PMC9407510 DOI: 10.3390/foods11162472] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Revised: 08/03/2022] [Accepted: 08/09/2022] [Indexed: 12/17/2022] Open
Abstract
The probiotics market is one of the fastest growing segments of the food industry as there is growing scientific evidence of the positive health effects of probiotics on consumers. Currently, there are various forms of probiotic products and they can be categorized according to dosage form and the site of action. To increase the effectiveness of probiotic preparations, they need to be specifically designed so they can target different sites, such as the oral, upper respiratory or gastrointestinal tracts. Here we review the characteristics of different dosage forms of probiotics and discuss methods to improve their bioavailability in detail, in the hope that this article will provide a reference for the development of probiotic products.
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Mirdamadian SZ, Varshosaz J, Minaiyan M, Taheri A. 3D printed tablets containing oxaliplatin loaded alginate nanoparticles for colon cancer targeted delivery. An in vitro/in vivo study. Int J Biol Macromol 2022; 205:90-109. [PMID: 35182561 DOI: 10.1016/j.ijbiomac.2022.02.080] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 01/31/2022] [Accepted: 02/14/2022] [Indexed: 12/15/2022]
Abstract
This study aimed to develop a colon-targeted tablet of oxaliplatin (OP) using the combination of nanotechnology and fused deposition modeling (FDM) 3D printing to improve its antitumor activity, tumor targetability, and safety profile. Eudragit L100-55 filament containing OP loaded alginate nanoparticles (OP-NPs) were fabricated using hot-melt extrusion method and printed by an FDM printer to 3D printed tablets with good uniformity in the drug content and selective release of OP in the colonic environment. The antitumor effect of 3D printed tablets containing OP-NPs in CT-26 tumor-bearing mice was evaluated compared to intravenous and oral administration of OP solution, and compressed tablets containing OP-NPs, which were prepared by direct compression method with the same formulation. The antitumor effect of 3D printed tablets containing OP-NPs was remarkable and comparable with intravenous OP solution (p ˃ 0.05) with a better safety profile, whereas compressed tablets did not show any significant antitumor effect, probably in terms of non-selective drug release in stomach and upper intestine environments. This study highlights the potential of the combination of nanotechnology and 3D printing in the preparation of colon-specific drug delivery systems of chemotherapeutic drugs with good antitumor activity, tumor targetability, and safety profile for colorectal cancer treatment.
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Affiliation(s)
- Seyedeh Zahra Mirdamadian
- Novel Drug Delivery Systems Research Center, Department of Pharmaceutics, Faculty of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Jaleh Varshosaz
- Novel Drug Delivery Systems Research Center, Department of Pharmaceutics, Faculty of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohsen Minaiyan
- Department of Pharmacology and Isfahan Pharmaceutical Sciences Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Azade Taheri
- Novel Drug Delivery Systems Research Center, Department of Pharmaceutics, Faculty of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran.
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Mirgorodskaya AB, Koroleva MY, Kushnazarova RA, Mishchenko EV, Petrov KA, Lenina OA, Vyshtakalyuk AB, Voloshina AD, Zakharova LY. Microemulsions and nanoemulsions modified with cationic surfactants for improving the solubility and therapeutic efficacy of loaded drug indomethacin. NANOTECHNOLOGY 2022; 33:155103. [PMID: 34959230 DOI: 10.1088/1361-6528/ac467d] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Accepted: 12/26/2021] [Indexed: 06/14/2023]
Abstract
In this work, a noncovalent strategy was successfully used to modify colloidal stability andin vitroandin vivoefficacy of two amphiphilic formulations of the anti-inflammatory drug indomethacin. Namely, nanoemulsions and microemulsions based on oleic acid and nonionic surfactants have been produced and compared. The influence of cationic surfactants cetyltrimethylammonium bromide and its carbamate bearing analogue on the size characteristics, stability and ability to provide prolonged action of loaded drug indomethacin has been evaluated. Adding the positively charged molecules in the surface layer of nanoemulsions and microemulsions has shown the stability increase along with maintaining the size characteristics and homogeneity in time. Moreover, the carbamate modified analogue demonstrated beneficial behavior. Indomethacin loaded in microemulsions and nanoemulsions showed prolonged-release (10%-15% release for 5 h) compared to a free drug (complete release for 5 h). The rate of release of indomethacin from nanoemulsions was slightly higher than from microemulsions and insignificantly decreased with an increase in the concentration of the cationic surfactant. For carbamate surfactant nanocarrier loaded with fluorescence probe Nile Red, the ability to penetrate into the cell was supported by flow cytometry study and visualized by fluorescence microscopy.In vitrotests on anti-inflammatory activity of the systems demonstrated that the blood cell membrane stabilization increased in the case of modified microemulsion. The anti-inflammatory activity of the encapsulated drug was tested in rats using a carrageenan-induced edema model. Nanoemulsions without cationic surfactants appeared more efficient compared to microemulsions. Indomethacin emulsion formulations with carbamate surfactant added showed slower carrageenan-induced edema progression compared to unmodified compositions. Meanwhile, the edema completely disappeared upon treatment with emulsion loaded indomethacin after 4 h in the case of microemulsions versus 5 h in the case of nanoemulsions.
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Affiliation(s)
- Alla B Mirgorodskaya
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 8, Arbuzov str., 420088 Kazan, Russia
| | - Marina Yu Koroleva
- Mendeleev University of Chemical Technology, 9, Miusskaya sq., 125047 Moscow, Russia
| | - Rushana A Kushnazarova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 8, Arbuzov str., 420088 Kazan, Russia
| | | | - Konstantin A Petrov
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 8, Arbuzov str., 420088 Kazan, Russia
- Kazan Federal University, 18, Kremlyovskaya str, 420008 Kazan, Russia
| | - Oxana A Lenina
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 8, Arbuzov str., 420088 Kazan, Russia
| | - Alexandra B Vyshtakalyuk
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 8, Arbuzov str., 420088 Kazan, Russia
| | - Alexandra D Voloshina
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 8, Arbuzov str., 420088 Kazan, Russia
| | - Lucia Ya Zakharova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, 8, Arbuzov str., 420088 Kazan, Russia
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Hevilla V, Sonseca A, Echeverría C, Muñoz-Bonilla A, Fernández-García M. Enzymatic Synthesis of Polyesters and Their Bioapplications: Recent Advances and Perspectives. Macromol Biosci 2021; 21:e2100156. [PMID: 34231313 DOI: 10.1002/mabi.202100156] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 06/17/2021] [Indexed: 01/17/2023]
Abstract
This article reviews the most important advances in the enzymatic synthesis of polyesters. In first place, the different processes of polyester enzymatic synthesis, i.e., polycondensation, ring opening, and chemoenzymatic polymerizations, and the key parameters affecting these reactions, such as enzyme, concentration, solvent, or temperature, are analyzed. Then, the latest articles on the preparation of polyesters either by direct synthesis or via modification are commented. Finally, the main bioapplications of enzymatically obtained polyesters, i.e., antimicrobial, drug delivery, or tissue engineering, are described. It is intended to point out the great advantages that enzymatic polymerization present to obtain polymers and the disadvantages found to develop applied materials.
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Affiliation(s)
- Víctor Hevilla
- MacroEng Group, Instituto de Ciencia y Tecnología de Polímeros, ICTP-CSIC, C/Juan de la Cierva, 3, Madrid, 28006, Spain.,Interdisciplinary Platform for "Sustainable Plastics towards a Circular Economy" (SUSPLAST-CSIC), Madrid, 28006, Spain
| | - Agueda Sonseca
- Instituto de Tecnología de Materiales, Universitat Politècnica de València, Camino de Vera, s/n, Valencia, 46022, Spain
| | - Coro Echeverría
- MacroEng Group, Instituto de Ciencia y Tecnología de Polímeros, ICTP-CSIC, C/Juan de la Cierva, 3, Madrid, 28006, Spain.,Interdisciplinary Platform for "Sustainable Plastics towards a Circular Economy" (SUSPLAST-CSIC), Madrid, 28006, Spain
| | - Alexandra Muñoz-Bonilla
- MacroEng Group, Instituto de Ciencia y Tecnología de Polímeros, ICTP-CSIC, C/Juan de la Cierva, 3, Madrid, 28006, Spain.,Interdisciplinary Platform for "Sustainable Plastics towards a Circular Economy" (SUSPLAST-CSIC), Madrid, 28006, Spain
| | - Marta Fernández-García
- MacroEng Group, Instituto de Ciencia y Tecnología de Polímeros, ICTP-CSIC, C/Juan de la Cierva, 3, Madrid, 28006, Spain.,Interdisciplinary Platform for "Sustainable Plastics towards a Circular Economy" (SUSPLAST-CSIC), Madrid, 28006, Spain
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The Anti-Inflammatory Effect of a γ-Lactone Isolated from Ostrich Oil of Struthio camelus (Ratite) and Its Formulated Nano-Emulsion in Formalin-Induced Paw Edema. Molecules 2021; 26:molecules26123701. [PMID: 34204472 PMCID: PMC8234909 DOI: 10.3390/molecules26123701] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Revised: 06/05/2021] [Accepted: 06/05/2021] [Indexed: 12/30/2022] Open
Abstract
The ostrich oil of Struthio camelus (Ratite) found uses in folk medicine as an anti-inflammatory in eczema and contact dermatitis. The anti-inflammatory effect of a γ-lactone (5-hexyl-3H-furan-2-one) isolated from ostrich oil and its formulated nano-emulsion in formalin-induced paw edema was investigated in this study. Ostrich oil was saponified using a standard procedure; the aqueous residue was fractionated, purified, and characterized as γ-lactone (5-hexyl-3H-furan-2-one) through the interpretation of IR, NMR, and MS analyses. The γ-lactone was formulated as nano-emulsion using methylcellulose (MC) for oral solubilized form. The γ-lactone methylcellulose nanoparticles (γ-lactone-MC-NPs) were characterized for their size, shape, and encapsulation efficiency with a uniform size of 300 nm and 59.9% drug content. The γ-lactone was applied topically, while the formulated nanoparticles (NPs) were administered orally to rats. A non-steroidal anti-inflammatory drug (diclofenac gel) was used as a reference drug for topical use and ibuprofen suspension for oral administration. Edema was measured using the plethysmograph method. Both γ-lactone and γ-lactone-MC-NPs showed reduction of formalin-induced paw edema in rats and proved to be better than the reference drugs; diclofenac gel and ibuprofen emulsion. Histological examination of the skin tissue revealed increased skin thickness with subepidermal edema and mixed inflammatory cellular infiltration, which were significantly reduced by the γ-lactone compared to the positive control (p-value = 0.00013). Diuretic and toxicity studies of oral γ-lactone-MC-NPs were performed. No diuretic activity was observed. However, lethargy, drowsiness, and refusal to feeding observed may limit its oral administration.
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Faisal Lutfi M, Abdel-Moneim AMH, Alsharidah AS, Mobark MA, Abdellatif AAH, Saleem IY, Al Rugaie O, Mohany KM, Alsharidah M. Thymoquinone Lowers Blood Glucose and Reduces Oxidative Stress in a Rat Model of Diabetes. Molecules 2021; 26:2348. [PMID: 33920728 PMCID: PMC8073923 DOI: 10.3390/molecules26082348] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 04/05/2021] [Accepted: 04/13/2021] [Indexed: 11/24/2022] Open
Abstract
The aim of the present study was to assess the short-term effects of Thymoquinone (TQ) on oxidative stress, glycaemic control, and renal functions in diabetic rats. DM was induced in groups II and III with a single dose of streptozotocin (STZ), while group I received no medication (control). The rats in groups I and II were then given distilled water, while the rats in group III were given TQ at a dose of 50 mg/kg body weight/day for 4 weeks. Lipid peroxidase, nitric oxide (NO), total antioxidant capacity (TAC), glycated haemoglobin (HbA1c), lipid profiles, and renal function were assessed. Moreover, the renal tissues were used for histopathological examination. STZ increased the levels of HbA1c, lipid peroxidase, NO, and creatinine in STZ-induced diabetic rats in comparison to control rats. TAC was lower in STZ-induced diabetic rats than in the control group. Furthermore, rats treated with TQ exhibited significantly lower levels of HbA1c, lipid peroxidase, and NO than did untreated diabetic rats. TAC was higher in diabetic rats treated with TQ than in untreated diabetic rats. The histopathological results showed that treatment with TQ greatly attenuated the effect of STZ-induced diabetic nephropathy. TQ effectively adjusts glycaemic control and reduces oxidative stress in STZ-induced diabetic rats without significant damaging effects on the renal function.
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Affiliation(s)
- Mohamed Faisal Lutfi
- Department of Physiology, College of Medicine, Qassim University, Buraydah 51452, Saudi Arabia; (M.F.L.); (A.-M.H.A.-M.); (A.S.A.)
- Department of Physiology, Faculty of Medicine, Nile College, Sheikh Zayed 7121, Sudan
| | - Abdel-Moneim Hafez Abdel-Moneim
- Department of Physiology, College of Medicine, Qassim University, Buraydah 51452, Saudi Arabia; (M.F.L.); (A.-M.H.A.-M.); (A.S.A.)
- Department of Physiology, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Ashwag Saleh Alsharidah
- Department of Physiology, College of Medicine, Qassim University, Buraydah 51452, Saudi Arabia; (M.F.L.); (A.-M.H.A.-M.); (A.S.A.)
| | - Mugahid A. Mobark
- Department of Pharmacy Practice, College of Pharmacy, Qassim University, Mansoura 51452, Saudi Arabia;
- Department of Pathology, Faculty of Medicine, University of Kordofan, El-Obeid 13314, Sudan
| | - Ahmed A. H. Abdellatif
- Department of Pharmaceutics, College of Pharmacy, Qassim University, Buraydah 51452, Saudi Arabia;
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Al-Azhar University, Assiut 71524, Egypt
| | - Imran Y. Saleem
- School of Pharmacy & Biomolecular Sciences, Liverpool John Moores University James Parsons Building, Liverpool L3 5UG, UK;
| | - Osamah Al Rugaie
- Department of Basic Medical Sciences, College of Medicine and Medical Sciences, Qassim University, Unaizah, P.O. Box 991, Qassim 51911, Saudi Arabia;
| | - Khalid M. Mohany
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Assiut University, Assiut 71515, Egypt;
| | - Mansour Alsharidah
- Department of Physiology, College of Medicine, Qassim University, Buraydah 51452, Saudi Arabia; (M.F.L.); (A.-M.H.A.-M.); (A.S.A.)
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13
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Ofridam F, Tarhini M, Lebaz N, Gagnière É, Mangin D, Elaissari A. pH
‐sensitive polymers: Classification and some fine potential applications. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5230] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Fabrice Ofridam
- Univ Lyon, University Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007 Villeurbanne France
| | - Mohamad Tarhini
- Univ Lyon, University Claude Bernard Lyon 1, CNRS, ISA UMR 5280 Villeurbanne France
| | - Noureddine Lebaz
- Univ Lyon, University Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007 Villeurbanne France
| | - Émilie Gagnière
- Univ Lyon, University Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007 Villeurbanne France
| | - Denis Mangin
- Univ Lyon, University Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007 Villeurbanne France
| | - Abdelhamid Elaissari
- Univ Lyon, University Claude Bernard Lyon 1, CNRS, ISA UMR 5280 Villeurbanne France
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14
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Othman MH, Zayed GM, Ali UF, Abdellatif AAH. Colon-specific tablets containing 5-fluorouracil microsponges for colon cancer targeting. Drug Dev Ind Pharm 2020; 46:2081-2088. [DOI: 10.1080/03639045.2020.1844730] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Mahmoud H. Othman
- Department of Physical Pharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Al-Azhar University, Assiut, Egypt
| | - Gamal M. Zayed
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Al-Azhar University, Assiut, Egypt
- Al-Azhar Centre of Nanosciences and Applications (ACNA), Al-Azhar University, Assiut, Egypt
| | - Usama F. Ali
- Department of Pharmaceutics, Faculty of Pharmacy, Minia University, Minia, Egypt
| | - Ahmed A. H. Abdellatif
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Al-Azhar University, Assiut, Egypt
- Department of Pharmaceutics, College of Pharmacy, Qassim University, Buraydah, Kingdom of Saudi Arabia
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15
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Diefenthaeler HS, Bianchin MD, Marques MS, Nonnenmacher JL, Bender ET, Bender JG, Nery SF, Cichota LC, Külkamp-Guerreiro IC. Omeprazole nanoparticles suspension: Development of a stable liquid formulation with a view to pediatric administration. Int J Pharm 2020; 589:119818. [PMID: 32866648 DOI: 10.1016/j.ijpharm.2020.119818] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 08/02/2020] [Accepted: 08/23/2020] [Indexed: 12/14/2022]
Abstract
Omeprazole (OME) is often used to treat disorders associated with gastric hypersecretion in children but a liquid pediatric formulation of this medicine is not currently available. The aim of this study is to develop OME loaded nanoparticles with a view to the obtention of a liquid pharmaceutical dosage form. Eudragit® RS100 was selected as the skeleton material in the inner core and pH-sensitive Eudragit® L100-55 was used as the outer coating of the nanoparticles prepared by the nanoprecipitation method. Pharmacological activity was evaluated by induction of ethanol ulcers in mice. The OME nanoparticles exhibited mean diameters of 174 nm (±17), polydispersity index of 0.229 (±0.01), zeta potential values of -13 mV (±2.60) and encapsulation efficiency of 68.1%. The in vivo pharmacological assessment showed the ability of nanoparticles to protect mice stomach against ulcer formation. The prepared suspension of OME nanoparticles represents effective therapeutic strategy in a liquid pharmaceutical form with the possibility of pediatric administration.
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Affiliation(s)
- Helissara Silveira Diefenthaeler
- Programa de Pós-Graduação em Nanotecnologia Farmacêutica, Universidade Federal do Rio Grande do Sul, 90610-000 Porto Alegre, RS, Brazil
| | - Mariana Domingues Bianchin
- Programa de Pós-Graduação em Ciências Biológicas: Farmacologia e Terapêutica, Universidade Federal do Rio Grande do Sul, 90050-170 Porto Alegre, RS, Brazil
| | - Morgana Souza Marques
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, 90610-000 Porto Alegre, RS, Brazil
| | - Julia Livia Nonnenmacher
- Faculdade de Farmácia, Universidade Regional Integrada do Alto Uruguai e das Missões, 99709-910 Erechim, RS, Brazil
| | - Emanueli Tainara Bender
- Faculdade de Farmácia, Universidade Regional Integrada do Alto Uruguai e das Missões, 99709-910 Erechim, RS, Brazil
| | - Júlia Gabrieli Bender
- Faculdade de Farmácia, Universidade Regional Integrada do Alto Uruguai e das Missões, 99709-910 Erechim, RS, Brazil
| | - Samara Feil Nery
- Faculdade de Farmácia, Universidade Regional Integrada do Alto Uruguai e das Missões, 99709-910 Erechim, RS, Brazil
| | - Luiz Carlos Cichota
- Faculdade de Farmácia, Universidade Regional Integrada do Alto Uruguai e das Missões, 99709-910 Erechim, RS, Brazil
| | - Irene Clemes Külkamp-Guerreiro
- Programa de Pós-Graduação em Nanotecnologia Farmacêutica, Universidade Federal do Rio Grande do Sul, 90610-000 Porto Alegre, RS, Brazil; Programa de Pós-Graduação em Ciências Biológicas: Farmacologia e Terapêutica, Universidade Federal do Rio Grande do Sul, 90050-170 Porto Alegre, RS, Brazil; Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, 90610-000 Porto Alegre, RS, Brazil.
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16
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Fluorescent Nanoparticles Coated with a Somatostatin Analogue Target Blood Monocyte for Efficient Leukaemia Treatment. Pharm Res 2020; 37:217. [PMID: 33037505 DOI: 10.1007/s11095-020-02938-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 09/23/2020] [Indexed: 12/30/2022]
Abstract
BACKGROUND Leukaemia is the most prevalent form of cancer-causing death in a large number of populations and needs prompt and effective treatment. Chemotherapeutics can be used to treat leukaemia, but their pronounced killing effects to other living cells is still an issue. Active targeting to certain specific receptors in leukaemic cells is the best way to avoid damage to other living cells. Leukaemic cells can be targeted using novel nanoparticles (NPs) coated with a specific ligand, such as octreotide (OCD), to target somatostatin receptor type 2 (SSTR2), which is expressed in leukaemic cells. METHODS Amino-PEGylated quantum dots (QDs) were chosen as model NPs. The QDs were first succinylated using succinic anhydride and then coated with OCD. The reactivity and selectivity of the formulated QDs-OCD were studied in cell lines with well-expressed SSTR2, while fluorescence was detected using confocal laser scanning microscopy (CLSM) and flow cytometry (FACS). Conclusively, QD-OCD targeting to blood cells was studied in vivo in mice and detected using inductively coupled plasma mass spectrometry and CLSM in tissues. RESULTS Highly stable QDs coated with OCD were prepared. FACS and CLSM showed highly definite interactions with overexpressed SSTR2 in the investigated cell lines. Moreover, the in vivo results revealed a higher concentration of QDs-OCD in blood cells. The fluorescence intensity of the QDs-OCD was highly accumulated in blood cells, while the unmodified QDs did not accumulate significantly in blood cells. CONCLUSION The formulated novel QDs-OCD can target SSTR2 overexpressed in blood cells with great potential for treating blood cancer.
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Abdellatif AAH, Ibrahim MA, Amin MA, Maswadeh H, Alwehaibi MN, Al-Harbi SN, Alharbi ZA, Mohammed HA, Mehany ABM, Saleem I. Cetuximab Conjugated with Octreotide and Entrapped Calcium Alginate-beads for Targeting Somatostatin Receptors. Sci Rep 2020; 10:4736. [PMID: 32170176 PMCID: PMC7069942 DOI: 10.1038/s41598-020-61605-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 02/29/2020] [Indexed: 12/25/2022] Open
Abstract
There is a need to formulate oral cetuximab (CTX) for targeting colorectal cancer, which is reported to express somatostatin receptors (SSTRs). Therefore, coating CTX with a somatostatin analogue such as octreotide (OCT) is beneficial. Alginate was used to coat CTX to facilitate delivery to the gastrointestinal tract (GIT). This study aimed to deliver CTX conjugated with OCT in the form of microparticles as a GIT-targeted SSTR therapy. Both CTX and OCT were conjugated using a solvent evaporation method and the conjugated CTX-OCT was then loaded onto Ca-alginate-beads (CTX-OCT-Alg), which were characterized for drug interactions using differential scanning calorimetry (DSC), and Fourier transform infrared spectra (FTIR). Moreover, the morphology of formulated beads was examined using a scanning electron microscope (SEM). The drug content and release profile were studied using UV spectroscopy. Finally, in vitro cytotoxicity of all compounds was evaluated. The results showed homogenous conjugated CTX-OCT with a diameter of 0.4 mm. DSC showed a delay in the OCT peak that appeared after 200 °C due to small polymer interaction that shifted the OCT peak. Moreover, FTIR showed no prominent interaction. SEM showed clear empty cavities in the plain Ca-alginate-beads, while CTX-OCT-Alg showed occupied beads without cavities. CTX-OCT-Alg had a negligible release in 0.1 N HCl, while the CTX-OCT was completely released after 300 min in phosphate buffer pH 7.4. All formulations showed good antiproliferative activity compared with free drugs. The formulated CTX-OCT-Alg are a promising platform for targeting colorectal cancer through GIT.
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Affiliation(s)
- Ahmed A H Abdellatif
- Department of Pharmaceutics, College of Pharmacy, Qassim University, Buraydah, 51452, Kingdom of Saudi Arabia.
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Al-Azhar University, Assiut, 71524, Egypt.
| | - Mohamed A Ibrahim
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Al-Azhar University, Assiut, 71524, Egypt
- Kayyali Chair for Pharmaceutical Industries, Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Mohammed A Amin
- Department of Pharmaceutics, College of Pharmacy, Qassim University, Buraydah, 51452, Kingdom of Saudi Arabia
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Al-Azhar University, Assiut, 71524, Egypt
| | - Hamzah Maswadeh
- Department of Pharmaceutics, College of Pharmacy, Qassim University, Buraydah, 51452, Kingdom of Saudi Arabia
| | - Muhammed N Alwehaibi
- Pharm. D. Student, College of Pharmacy, Qassim University, Buraydah, 51452, Kingdom of Saudi Arabia
| | - Sultan N Al-Harbi
- Pharm. D. Student, College of Pharmacy, Qassim University, Buraydah, 51452, Kingdom of Saudi Arabia
| | - Zayed A Alharbi
- Pharm. D. Student, College of Pharmacy, Qassim University, Buraydah, 51452, Kingdom of Saudi Arabia
| | - Hamdoon A Mohammed
- Department of Medicnal Chemistry and Pharmacognosy, College of Pharmacy, Qassim University, Buraydah, 51452, Kingdom of Saudi Arabia
- Department of Pharmacognosy, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Ahmed B M Mehany
- Department of Zoology, Faculty of Science, Al-Azhar University, Cairo, Egypt
| | - Imran Saleem
- School of Pharmacy & Biomolecular Sciences, Liverpool John Moores University James Parsons Building, Liverpool, UK
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18
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Peng R, Huang J, He L, Zhao L, Wang C, Wei W, Xia T, Mao Y, Wen Y, Wang L, Yang J. Polymer/lipid interplay in altering in vitro supersaturation and plasma concentration of a model poorly soluble drug. Eur J Pharm Sci 2020; 146:105262. [PMID: 32060005 DOI: 10.1016/j.ejps.2020.105262] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Revised: 01/18/2020] [Accepted: 02/09/2020] [Indexed: 01/28/2023]
Abstract
Supersaturation drug delivery system (SDDS) based on amorphous solid dispersion (ASD) is a widely used strategy to improve oral absorption of poorly water-soluble drugs by achieving a supersaturated state where drug concentration is significantly higher than drug solubility. However, dissolved drugs tend to recrystallize in gastrointestinal (GI) tract if without effective stabilizing excipients. In this paper, well-recognized polymer (polyvinylpyrrolidone, PVP) and lipid (phosphatidylcholine, PC) excipients are combined as ASD carrier, aiming at investigating the effects on evolution of in vitro supersaturation and in vivo plasma concentration of a model poorly soluble drug indomethacin (IND). Fundamental aspects including polymer/lipid composition ratio, drug loading (DL) degree and administration dose were investigated. The in vitro dissolution profiles of ASDs were assessed by supersaturation degree, duration, maximum achievable drug concentration and dose-normalized efficiency, and correlated with in vivo pharmacokinetic data. Results showed that both in vitro and in vivo concentration-time profiles of IND were significantly varying with abovementioned factors. Solution viscosity, solid-state properties and morphology of ASDs were related to the results. This study revealed fundamental mechanisms of PVP/PC mixture effect on IND supersaturation and oral bioavailability, demonstrating that polymer/lipid mixture could be used as a promising carrier to alter supersaturation profile and oral bioavailability of SDDS products.
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Affiliation(s)
- Rui Peng
- Key Laboratory of Drug Targeting and Drug Delivery Systems, Ministry of Education, West China School of Pharmacy, Sichuan University, Chengdu 610041, Sichuan, China
| | - Jiahao Huang
- School of Pharmacy, University of Waterloo, Waterloo, ON N2L3G1, Canada.
| | - Li He
- Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Lina Zhao
- Key Laboratory of Drug Targeting and Drug Delivery Systems, Ministry of Education, West China School of Pharmacy, Sichuan University, Chengdu 610041, Sichuan, China
| | - Cuitong Wang
- Key Laboratory of Drug Targeting and Drug Delivery Systems, Ministry of Education, West China School of Pharmacy, Sichuan University, Chengdu 610041, Sichuan, China
| | - Wei Wei
- Key Laboratory of Drug Targeting and Drug Delivery Systems, Ministry of Education, West China School of Pharmacy, Sichuan University, Chengdu 610041, Sichuan, China
| | - Tongchao Xia
- Key Laboratory of Drug Targeting and Drug Delivery Systems, Ministry of Education, West China School of Pharmacy, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Yifei Mao
- Key Laboratory of Drug Targeting and Drug Delivery Systems, Ministry of Education, West China School of Pharmacy, Sichuan University, Chengdu 610041, Sichuan, China
| | - Yinghui Wen
- Key Laboratory of Drug Targeting and Drug Delivery Systems, Ministry of Education, West China School of Pharmacy, Sichuan University, Chengdu 610041, Sichuan, China.
| | - Ling Wang
- Key Laboratory of Drug Targeting and Drug Delivery Systems, Ministry of Education, West China School of Pharmacy, Sichuan University, Chengdu 610041, Sichuan, China
| | - Junyi Yang
- Key Laboratory of Drug Targeting and Drug Delivery Systems, Ministry of Education, West China School of Pharmacy, Sichuan University, Chengdu 610041, Sichuan, China.
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Abdellatif AAH, Alawadh SH, Bouazzaoui A, Alhowail AH, Mohammed HA. Anthocyanins rich pomegranate cream as a topical formulation with anti-aging activity. J DERMATOL TREAT 2020; 32:983-990. [PMID: 32022625 DOI: 10.1080/09546634.2020.1721418] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Background: Anthocyanins are antioxidant compounds constitute the primary dyes of the pomegranate arils. Anthocyanins could protect the aged skin induced by oxidant exposure as a major role in aging processing and skin degeneration.Purpose: The study aimed to evaluate the anti-aging activity of anthocyanins rich pomegranate (Punica granatum) after formulated into a topical cream. Also, its effect on human dermal fibroblast function and epidermal keratinocyte were evaluated.Method: Anthocyanins were extracted from fresh pomegranate arils using acidified methanol and were purified by Sephadex LH-20 gel-column chromatography. Further, the fusion method was used to prepare cold cream containing pomegranate anthocyanins. The formulated cream was evaluated for their compatibility study, irritation, homogeneity, drug content, drug release, and stability tests. Furthermore, permeation study through abdominal rabbits, as well as Human application was performed.Results: Compatibility study showed the absence of any interaction between anthocyanins and the used polymers. The formulated cream was nonirritant, homogenous and potentially reduced skin aging when applied to Human volunteers' skin. Furthermore, the skin permeation displayed a good permeation of 43.16% after 210 min.Conclusion: Pomegranate anthocyanins could be used as a safe, stable, homogeneous, nonirritant and effective topical anti-aging drug formulation for aged human people.
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Affiliation(s)
- Ahmed A H Abdellatif
- Department of Pharmaceutics, College of Pharmacy, Qassim University, Buraydah, Al Qassim, Kingdom of Saudi Arabia.,Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Al-Azhar University, Assiut, Egypt
| | | | - Abdellatif Bouazzaoui
- Department of Medical Genetic, Faculty of Medicine, Umm Al Qura University, Makkah, Kingdom of Saudi Arabia
| | - Ahmad H Alhowail
- Department of Pharmacology and Toxicology, College of Pharmacy, Qassim University, Buraydah, Kingdom of Saudi Arabia
| | - Hamdoon A Mohammed
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, Qassim University, Buraydah, Kingdom of Saudi Arabia.,Department of Pharmacognosy, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
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20
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Basha M, Salama A, Noshi SH. Soluplus® based solid dispersion as fast disintegrating tablets: a combined experimental approach for enhancing the dissolution and antiulcer efficacy of famotidine. Drug Dev Ind Pharm 2020; 46:253-263. [DOI: 10.1080/03639045.2020.1716376] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Mona Basha
- Department of Pharmaceutical Technology, National Research Centre, Cairo, Egypt
| | - Abeer Salama
- Department of Pharmacology, National Research Centre, Cairo, Egypt
| | - Shereen H. Noshi
- Department of Pharmaceutics, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), Cairo, Egypt
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21
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Abdellatif AA, El Hamd MA, Salman KH, Abd-El-Rahim AM, El-Maghrabey M, Tawfeek HM. Integrative physicochemical and HPLC assessment studies for the inclusion of lornoxicam in buffalo's milk fat globules as a potential carrier delivery system for lipophilic drugs. Microchem J 2020. [DOI: 10.1016/j.microc.2019.104321] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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22
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Zamboulis A, Nakiou EA, Christodoulou E, Bikiaris DN, Kontonasaki E, Liverani L, Boccaccini AR. Polyglycerol Hyperbranched Polyesters: Synthesis, Properties and Pharmaceutical and Biomedical Applications. Int J Mol Sci 2019; 20:E6210. [PMID: 31835372 PMCID: PMC6940955 DOI: 10.3390/ijms20246210] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/02/2019] [Accepted: 12/04/2019] [Indexed: 12/13/2022] Open
Abstract
In a century when environmental pollution is a major issue, polymers issued from bio-based monomers have gained important interest, as they are expected to be environment-friendly, and biocompatible, with non-toxic degradation products. In parallel, hyperbranched polymers have emerged as an easily accessible alternative to dendrimers with numerous potential applications. Glycerol (Gly) is a natural, low-cost, trifunctional monomer, with a production expected to grow significantly, and thus an excellent candidate for the synthesis of hyperbranched polyesters for pharmaceutical and biomedical applications. In the present article, we review the synthesis, properties, and applications of glycerol polyesters of aliphatic dicarboxylic acids (from succinic to sebacic acids) as well as the copolymers of glycerol or hyperbranched polyglycerol with poly(lactic acid) and poly(ε-caprolactone). Emphasis was given to summarize the synthetic procedures (monomer molar ratio, used catalysts, temperatures, etc.,) and their effect on the molecular weight, solubility, and thermal and mechanical properties of the prepared hyperbranched polymers. Their applications in pharmaceutical technology as drug carries and in biomedical applications focusing on regenerative medicine are highlighted.
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Affiliation(s)
- Alexandra Zamboulis
- Laboratory of Polymer Chemistry & Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.Z.); (E.A.N.); (E.C.)
| | - Eirini A. Nakiou
- Laboratory of Polymer Chemistry & Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.Z.); (E.A.N.); (E.C.)
| | - Evi Christodoulou
- Laboratory of Polymer Chemistry & Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.Z.); (E.A.N.); (E.C.)
| | - Dimitrios N. Bikiaris
- Laboratory of Polymer Chemistry & Technology, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.Z.); (E.A.N.); (E.C.)
| | - Eleana Kontonasaki
- Department of Dentistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Liliana Liverani
- Institute of Biomaterials, Department of Material Science and Engineering, University of Erlangen-Nuremberg, Cauerstr. 6, 91058 Erlangen, Germany;
| | - Aldo R. Boccaccini
- Institute of Biomaterials, Department of Material Science and Engineering, University of Erlangen-Nuremberg, Cauerstr. 6, 91058 Erlangen, Germany;
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23
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Swainson SME, Styliari ID, Taresco V, Garnett MC. Poly (glycerol adipate) (PGA), an Enzymatically Synthesized Functionalizable Polyester and Versatile Drug Delivery Carrier: A Literature Update. Polymers (Basel) 2019; 11:polym11101561. [PMID: 31557875 PMCID: PMC6835762 DOI: 10.3390/polym11101561] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 09/09/2019] [Accepted: 09/20/2019] [Indexed: 01/09/2023] Open
Abstract
The enzymatically synthesized poly (glycerol adipate) (PGA) has demonstrated all the desirable key properties required from a performing biomaterial to be considered a versatile “polymeric-tool” in the broad field of drug delivery. The step-growth polymerization pathway catalyzed by lipase generates a highly functionalizable platform while avoiding tedious steps of protection and deprotection. Synthesis requires only minor purification steps and uses cheap and readily available reagents. The final polymeric material is biodegradable, biocompatible and intrinsically amphiphilic, with a good propensity to self-assemble into nanoparticles (NPs). The free hydroxyl group lends itself to a variety of chemical derivatizations via simple reaction pathways which alter its physico-chemical properties with a possibility to generate an endless number of possible active macromolecules. The present work aims to summarize the available literature about PGA synthesis, architecture alterations, chemical modifications and its application in drug and gene delivery as a versatile carrier. Following on from this, the evolution of the concept of enzymatically-degradable PGA-drug conjugation has been explored, reporting recent examples in the literature.
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Affiliation(s)
- Sadie M E Swainson
- School of Pharmacy, University of Nottingham, University Park, Nottingham NG7 2RD, UK.
| | - Ioanna D Styliari
- School of Life and Medical Sciences, University of Hertfordshire, College Lane, Hatfield AL10 9AB, UK.
| | - Vincenzo Taresco
- School of Pharmacy, University of Nottingham, University Park, Nottingham NG7 2RD, UK.
- School of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, UK.
| | - Martin C Garnett
- School of Pharmacy, University of Nottingham, University Park, Nottingham NG7 2RD, UK.
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24
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Abdellatif AAH. Identification of somatostatin receptors using labeled PEGylated octreotide, as an active internalization. Drug Dev Ind Pharm 2019; 45:1707-1715. [PMID: 31418304 DOI: 10.1080/03639045.2019.1656735] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Numerous normal and tumors cells are well-known to express the somatostatin receptors (SSTRs) on their surface which makes the receptor be useful for tumor scintigraphy. Thus, the identification of SSTRs is beneficial, especially SSTR2. The somatostatin analog, Octreotide (OCT), was chosen as a ligand, as it is known to selectively bind to SSTR2. Moreover, polyethylene glycol (PEG), 8armPEG, was used as a branched PEG to provide a low nonspecific cell binding and easily chemical modification. OCT and fluorescein (Flu) were conjugated to branched PEG using a water-soluble carbodiimide (EDC) and N-hydroxy succinimide (NHS) so as to activate its carboxylic acid group. 8armPEG-tagged Flu and OCT was characterized by gel permeation chromatography (GPC) to proof the conjugation of OCT to 8armPEG. Finally, cellular uptake was studied using pancreatic cancer cells with well-expressed somatostatin receptors using a confocal laser scanning microscope (CLMS) and fluorescence activated cell sorting (FACS). GPC showed increases in molecular mass since it showed a difference in elution time of 8armPEG itself and 8armPEG labeled with Flu. CLMS and FACS showed high binding with the positive SSTR2 cells expression and showed negative results with negative expressing SSTR2. These bindings were decreased when the receptors were occupied with free OCT which confirms the specific binding to SSTR2. Therefore, we formulated a novel model to easily identify SSTR2 and other receptors which serves as a promising platform for identification of tumor cells overexpressing the SSTR2, which would be a hopeful target for cancer therapy and tumor scintigraphy.
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Affiliation(s)
- Ahmed A H Abdellatif
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Al Azhar University , Assiut , Egypt.,Department of Pharmaceutics, College of Pharmacy, Qassim University , Buraydah , Kingdom of Saudi Arabia
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25
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Pulmonary delivery of Nanocomposite Microparticles (NCMPs) incorporating miR-146a for treatment of COPD. Int J Pharm 2019; 569:118524. [PMID: 31319144 DOI: 10.1016/j.ijpharm.2019.118524] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 07/11/2019] [Accepted: 07/13/2019] [Indexed: 12/20/2022]
Abstract
The treatment and management of COPD by inhalation to the lungs has emerged as an attractive alternative route to oral dosing due to higher concentrations of the drug being administered to site of action. In this study, Nanocomposite Microparticles (NCMPs) of microRNA (miR-146a) containing PGA-co-PDL nanoparticles (NPs) for dry powder inhalation were formulated using l-leucine and mannitol. The spray-drying (Buchi B290) process was optimised and used to incorporate NPs into NCMPs using mix of l-leucine and mannitol excipients in different ratios (F1; 100:0% w/w, F2; 75:25% w/w, F3; 50:50% w/w, F4; 25:75% w/w, F5; 0:100% w/w) to investigate yield %, moisture content, aerosolisation performance and miR-146a biological activity. The optimum condition was performed at feed rate 0.5 ml/min, aspirator rate 28 m3/h, atomizing air flow rate 480 L/h, and inlet drying temperature 70 °C which produced highest yield percentage and closest recovered NPs size to original prior spray-drying. The optimum formulation (F4) had a high yield (86.0 ± 15.01%), recovered NPs size after spray-drying 409.7 ± 10.05 nm (initial NPs size 244.8 ± 4.40 nm) and low moisture content (2.02 ± 0.03%). The aerosolisation performance showed high Fine Particle Fraction (FPF) 51.33 ± 2.9%, Emitted Dose (ED) of 81.81 ± 3.0%, and the mass median aerodynamic diameter (MMAD) was ≤5 µm suggesting a deposition in the respirable region of the lungs. The biological activity of miR-146a was preserved after spray-drying process and miR-146a loaded NCMPs produced target genes IRAK1 and TRAF6 silencing. These results indicate the optimal process parameters for the preparation of NCMPs of miR-146a-containing PGA-co-PDL NPs suitable for inhalation in the treatment and management of COPD.
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Formulation of Ethyl Cellulose Microparticles Incorporated Pheophytin A Isolated from Suaeda vermiculata for Antioxidant and Cytotoxic Activities. Molecules 2019; 24:molecules24081501. [PMID: 30999569 PMCID: PMC6514815 DOI: 10.3390/molecules24081501] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 04/14/2019] [Accepted: 04/16/2019] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND This study is designed to discover a method for delivering an efficient potent pheophytin a (pheo-a) into more absorbed and small polymeric ethyl cellulose (EC) microparticles. METHODS Silica gel and Sephadex LH-20 columns were used to isolate pheo-a from the chloroform extract of the edible plant, Suaeda vermiculata. Pheo-a was incorporated into EC microparticles using emulsion-solvent techniques. The antioxidant activity of pheo-a microparticles was confirmed by the level of superoxide radical (SOD), nitric oxide (NO), and reducing power (RP) methods. Meanwhile, the cytotoxic effect of the product was investigated on MCF-7 cells using MTT assay. RESULTS Pheo-a was isolated from S. vermiculata in a 12% concentration of the total chloroform extract. The structures were confirmed by NMR and IR spectroscopic analysis. The formulated microparticles were uniform, completely dispersed in the aqueous media, compatible as ingredients, and had a mean diameter of 139 ± 1.56 µm as measured by a particle size analyzer. Pheo-a demonstrated a valuable antioxidant activity when compared with ascorbic acid. The IC50 values of pheo-a microparticles were 200.5 and 137.7 µg/mL for SOD, and NO respectively. The reducing power of pheo-a microparticles was more potent than ascorbic acid and had a 4.2 µg/mL for IC50 value. Pheo-a microparticles did not show notable cytotoxicity on the MCF-7 cell line (IC50 = 35.9 µg/mL) compared with doxorubicin (IC50 = 3.2 µg/mL). CONCLUSIONS the results showed that water-soluble pheo-a microparticles were prepared with a valuable antioxidant activity in a wide range of concentrations with a noteworthy cytotoxic effect.
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Wilson JA, Ates Z, Pflughaupt RL, Dove AP, Heise A. Polymers from macrolactones: From pheromones to functional materials. Prog Polym Sci 2019. [DOI: 10.1016/j.progpolymsci.2019.02.005] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Atia NN, Tawfeek HM, Rageh AH, El-Zahry MR, Abdelfattah A, Younis MA. Novel sublingual tablets of Atorvastatin calcium/Trimetazidine hydrochloride combination; HPTLC quantification, in vitro formulation and characterization. Saudi Pharm J 2019; 27:540-549. [PMID: 31061623 PMCID: PMC6488851 DOI: 10.1016/j.jsps.2019.02.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Accepted: 02/04/2019] [Indexed: 01/04/2023] Open
Abstract
Background Ischemic heart disorders and accumulation of lipids in blood vessels could contribute to angina pectoris. Therefore, the aim of this study was to formulate sublingual tablets containing a novel combination of Atorvastatin calcium (ATOR) and Trimetazidine HCl (TMZ) for efficient treatment of coronary heart disorders. Methods The dissolution rate of water-insoluble ATOR was enhanced via complexation with sulfobutyl ether-β-cyclodextrin (SBE-β-CD) and addition of soluplus as a polymeric solubilizer excipient. The solubilized ATOR and TMZ were compressed into a sublingual tablets by direct compression technique and evaluated for their tableting characteristics. In addition, a new validated method based on High Performance Thin Layer Chromatography (HPTLC) was developed for simultaneous determination of both drugs in pure forms and sublingual tablets. Results The developed HPTLC method showed LODs of 0.056 and 0.013 μg/band and LOQs of 0.17, 0.040 μg/band for TMZ and ATOR, respectively and proved to be linear, accurate, precise and robust. The optimum formulation containing mixture of superdisintegrants; Ac-Di-Sol and crospovidone (4.8% w/w, each) showed the shortest disintegration time (65 s) and enhanced release profiles of both drugs. Conclusions The prepared sublingual tablets combining ATOR and TMZ will be a promising dosage form for coronary heart disease patients with an instant action and improved patient compliance.
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Affiliation(s)
- Noha N Atia
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
| | - Hesham M Tawfeek
- Department of Industrial Pharmacy, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt.,Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Mutah University, Karak 61710, Jordan
| | - Azza H Rageh
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
| | - Marwa R El-Zahry
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
| | - Ahmed Abdelfattah
- Department of Industrial Pharmacy, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
| | - Mahmoud A Younis
- Department of Industrial Pharmacy, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
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Vass P, Démuth B, Hirsch E, Nagy B, Andersen SK, Vigh T, Verreck G, Csontos I, Nagy ZK, Marosi G. Drying technology strategies for colon-targeted oral delivery of biopharmaceuticals. J Control Release 2019; 296:162-178. [PMID: 30677436 DOI: 10.1016/j.jconrel.2019.01.023] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 01/16/2019] [Accepted: 01/17/2019] [Indexed: 12/12/2022]
Abstract
In chronic intestinal diseases like inflammatory bowel disease, parenteral administration of biopharmaceuticals is associated with numerous disadvantages including immune reactions, infections, low patient compliance, and toxicity caused by high systemic bioavailability. One alternative that can potentially overcome these limitations is oral administration of biopharmaceuticals, where the local delivery will reduce the systemic exposure and furthermore the manufacturing costs will be lower. However, the development of oral dosage forms that deliver the biologically active form to the intestines is one of the greatest challenges for pharmaceutical technologists due to the sensitive nature of biopharmaceuticals. The present article discusses the various drug delivery technologies used to produce orally administered solid dosage forms of biopharmaceuticals with an emphasis on colon-targeted delivery. Solid oral dosage compositions containing different types of colon-targeting biopharmaceuticals are compiled followed by a review of currently applied and emerging drying technologies for biopharmaceuticals. The different drying technologies are compared in terms of their advantages, limitations, costs and their effect on product stability.
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Affiliation(s)
- Panna Vass
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics (BME), H-1111 Budapest, Műegyetem rakpart 3, Hungary
| | - Balázs Démuth
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics (BME), H-1111 Budapest, Műegyetem rakpart 3, Hungary
| | - Edit Hirsch
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics (BME), H-1111 Budapest, Műegyetem rakpart 3, Hungary
| | - Brigitta Nagy
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics (BME), H-1111 Budapest, Műegyetem rakpart 3, Hungary
| | - Sune K Andersen
- Oral Solids Development, Janssen R&D, B-2340 Beerse, Turnhoutseweg 30, Belgium.
| | - Tamás Vigh
- Oral Solids Development, Janssen R&D, B-2340 Beerse, Turnhoutseweg 30, Belgium
| | - Geert Verreck
- Oral Solids Development, Janssen R&D, B-2340 Beerse, Turnhoutseweg 30, Belgium
| | - István Csontos
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics (BME), H-1111 Budapest, Műegyetem rakpart 3, Hungary
| | - Zsombor K Nagy
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics (BME), H-1111 Budapest, Műegyetem rakpart 3, Hungary.
| | - György Marosi
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics (BME), H-1111 Budapest, Műegyetem rakpart 3, Hungary
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Shahdadi Sardo H, Saremnejad F, Bagheri S, Akhgari A, Afrasiabi Garekani H, Sadeghi F. A review on 5-aminosalicylic acid colon-targeted oral drug delivery systems. Int J Pharm 2019; 558:367-379. [PMID: 30664993 DOI: 10.1016/j.ijpharm.2019.01.022] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 01/08/2019] [Accepted: 01/08/2019] [Indexed: 02/08/2023]
Abstract
Site-specific colon drug delivery is a practical approach for the treatment of local diseases of the colon with several advantages such as rapid onset of action and reduction of the dosage of the drug as well as minimization of harmful side effects. 5-aminosalicylic acid (5-ASA) is a drug of choice in the treatment of inflammatory bowel disease and colitis. For the efficient delivery of this drug, it is vital to prevent 5-ASA release in the upper part of the gastrointestinal tract and to promote its release in the proximal colon. Different approaches including chemical manipulation of drug molecule for production of prodrugs or modification of drug delivery systems using pH-dependent, time-dependent and/or bacterially biodegradable materials have been tried to optimize 5-ASA delivery to the colon. In the current review, the different strategies utilized in the design and development of an oral colonic delivery dosage form of 5-ASA are presented and discussed.
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Affiliation(s)
- Hossein Shahdadi Sardo
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Farinaz Saremnejad
- Department of Food Science and Technology, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Sara Bagheri
- Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Abbas Akhgari
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Hadi Afrasiabi Garekani
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Fatemeh Sadeghi
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
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Song B. Lotus leaf-inspired design of calcium alginate particles with superhigh drug encapsulation efficiency and pH responsive release. Colloids Surf B Biointerfaces 2018; 172:464-470. [PMID: 30199763 DOI: 10.1016/j.colsurfb.2018.09.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 08/31/2018] [Accepted: 09/01/2018] [Indexed: 10/28/2022]
Abstract
Drug delivery systems with high drug encapsulation efficiency and controlled release are of great importance in biomedical fields. Herein, we report an ingenious approach inspired from the lotus leaf possessing the ability of strong repellency to water, which enables the rapid fabrication of drug-loaded calcium alginate (Ca-Alg) particles with high drug encapsulation efficiency and controlled drug delivery. The design is achieved by introducing aqueous droplets containing the mixture of dilute sodium alginate solution, dilute calcium chloride solution, and drug onto the superhydrophobic substrate. Due to water evaporation both the concentration of sodium alginate and calcium chloride within the droplets will gradually increase, and the ionic crosslinking reaction of sodium alginate with Ca2+ is further occurred to form the drug-embedded Ca-Alg hydrogel particles. The results indicate that the controllable fabrication of Ca-Alg particles can be easily achieved on the superhydrophobic surface, and the swelling behavior can be tuned by the pH of the buffer solution. Importantly, the drug encapsulation efficiencies are measured to be over 88% and the drug exhibits obvious pH responsive release. Findings from this study are expected to contribute to the rational design of drug delivery systems with high drug encapsulation efficiency and controlled release for pharmaceutic science and tissue engineering.
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Affiliation(s)
- Botao Song
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, Shaanxi, People's Republic of China.
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Zhou J, Zhu F, Li J, Wang Y. Concealed body mesoporous silica nanoparticles for orally delivering indometacin with chiral recognition function. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 90:314-324. [DOI: 10.1016/j.msec.2018.04.071] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 04/17/2018] [Accepted: 04/24/2018] [Indexed: 12/20/2022]
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A novel controlled release microsponges containing Albendazole against Haemonchus contortus in experimentally infected goats. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2017.10.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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