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Choudhury D, Jala A, Murty US, Borkar RM, Banerjee S. In Vitro and In Vivo Evaluations of Berberine-Loaded Microparticles Filled In-House 3D Printed Hollow Capsular Device for Improved Oral Bioavailability. AAPS PharmSciTech 2022; 23:89. [PMID: 35296955 PMCID: PMC8926385 DOI: 10.1208/s12249-022-02241-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 02/19/2022] [Indexed: 11/30/2022] Open
Abstract
The low oral bioavailability, short biological half-life, high dose, and frequent dosing of berberine (BBR) contribute to its restricted clinical use despite its extensive pharmacological activity. Thus, the objective of this study was to formulate sustained-release microparticles (MPs) using a pH-independent release polymer and to evaluate their potential to improve the oral bioavailability of BBR. BBR loaded MPs were prepared using the emulsion crosslinking method and evaluated for particle size, circularity, morphology, entrapment efficiency, solid-state analysis, swelling index, and in vitro BBR release study fitted with different models of release kinetics. The MPs exhibited desired particle sizes ranges between 11.09-11.62 μm and were almost spherical in shape, as confirmed by the circularity value and micrographic images. A loss of BBR crystallinity was observed after encapsulation in MPs, as evident from various solid-state analyses. The final optimized batch (F3) showed highest % BBR entrapment efficiency value of 81.63% ± 4.9. The in vitro BBR release performance in both acidic and alkaline media showed the desired sustained release behavior from the crosslinked MPs, where the maximum BBR release was observed at alkaline pH, which is in accordance with the swelling study data. In the in vivo study, the oral absorption profiles of BBR from both pristine and MPs formats were investigated using in-house prototyped 3D printed hollow capsules as a unit dose carrier. In vivo data showed sustained and prolonged absorption behavior of BBR from MPs compared to their pristine counterparts, which resulted in a cumulative increment of relative oral bioavailability to mitigate the aforementioned issues related to BBR. Graphical Abstract.
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Yang C, Yang S, Li G, Lin H. Study on preparation and in vitro release of gelatin microspheres loaded with steroidal saponins from Ophiopogon japonicus. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2021. [DOI: 10.1080/10601325.2021.1920331] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Chunrong Yang
- College of Materials Science and Engineering, Fujian University of Technology, Fuzhou, China
| | - Shangfeng Yang
- College of Materials Science and Engineering, Fujian University of Technology, Fuzhou, China
| | - Guanghui Li
- College of Materials Science and Engineering, Fujian University of Technology, Fuzhou, China
| | - Han Lin
- College of Materials Science and Engineering, Fujian University of Technology, Fuzhou, China
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Abdelrady H, Hathout RM, Osman R, Saleem I, Mortada ND. Exploiting gelatin nanocarriers in the pulmonary delivery of methotrexate for lung cancer therapy. Eur J Pharm Sci 2019; 133:115-126. [DOI: 10.1016/j.ejps.2019.03.016] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 03/19/2019] [Accepted: 03/19/2019] [Indexed: 01/22/2023]
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Preparation and structural characterization of surface modified microporous bacterial cellulose scaffolds: A potential material for skin regeneration applications in vitro and in vivo. Int J Biol Macromol 2018; 117:1200-1210. [DOI: 10.1016/j.ijbiomac.2018.06.044] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 06/06/2018] [Accepted: 06/08/2018] [Indexed: 11/21/2022]
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A Comparison of Two Methods for the Preparation Cefquinome-Loaded Gelatin Microspheres for Lung Targeting. Pharm Res 2018; 35:43. [DOI: 10.1007/s11095-018-2342-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 11/21/2017] [Indexed: 11/27/2022]
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Dehghan Baniani D, Bagheri R, Solouk A. Preparation and characterization of a composite biomaterial including starch micro/nano particles loaded chitosan gel. Carbohydr Polym 2017; 174:633-645. [DOI: 10.1016/j.carbpol.2017.06.095] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 05/17/2017] [Accepted: 06/22/2017] [Indexed: 12/20/2022]
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Qu S, Dai C, Qiu M, Zhang R, Wang C, Cui L, Hao Z. Preparation and characterization of three types of cefquinome-loaded microspheres. INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION 2017. [DOI: 10.1080/1023666x.2017.1283169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Shaoqi Qu
- Agricultural Bio-pharmaceutical Laboratory, Qingdao Agricultural University, Qingdao, China
- National-Local Joint Engineering Laboratory, Agricultural Bio-pharmaceutical Technology, Qingdao Agricultural University, Qingdao, China
| | - Cunchun Dai
- Agricultural Bio-pharmaceutical Laboratory, Qingdao Agricultural University, Qingdao, China
- National-Local Joint Engineering Laboratory, Agricultural Bio-pharmaceutical Technology, Qingdao Agricultural University, Qingdao, China
| | - Mei Qiu
- Agricultural Bio-pharmaceutical Laboratory, Qingdao Agricultural University, Qingdao, China
- National-Local Joint Engineering Laboratory, Agricultural Bio-pharmaceutical Technology, Qingdao Agricultural University, Qingdao, China
| | - Ruili Zhang
- Agricultural Bio-pharmaceutical Laboratory, Qingdao Agricultural University, Qingdao, China
- National-Local Joint Engineering Laboratory, Agricultural Bio-pharmaceutical Technology, Qingdao Agricultural University, Qingdao, China
| | - Chunyuan Wang
- Agricultural Bio-pharmaceutical Laboratory, Qingdao Agricultural University, Qingdao, China
- National-Local Joint Engineering Laboratory, Agricultural Bio-pharmaceutical Technology, Qingdao Agricultural University, Qingdao, China
| | - Liangliang Cui
- Agricultural Bio-pharmaceutical Laboratory, Qingdao Agricultural University, Qingdao, China
- National-Local Joint Engineering Laboratory, Agricultural Bio-pharmaceutical Technology, Qingdao Agricultural University, Qingdao, China
| | - Zhihui Hao
- Agricultural Bio-pharmaceutical Laboratory, Qingdao Agricultural University, Qingdao, China
- National-Local Joint Engineering Laboratory, Agricultural Bio-pharmaceutical Technology, Qingdao Agricultural University, Qingdao, China
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Peng Z, Li Z, Shen Y. Preparation and in vitro Characterization of Gelatin Microspheres Containing 5-fluorouracil. J MACROMOL SCI B 2012. [DOI: 10.1080/00222348.2011.625901] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Zhiyuan Peng
- a College of Chemistry and Chemical Engineering , Jishou University , Jishou , P. R. China
| | - Zhiping Li
- a College of Chemistry and Chemical Engineering , Jishou University , Jishou , P. R. China
| | - Yongqiang Shen
- a College of Chemistry and Chemical Engineering , Jishou University , Jishou , P. R. China
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El-Bary AA, Aboelwafa AA, Al Sharabi IM. Influence of some formulation variables on the optimization of pH-dependent, colon-targeted, sustained-release mesalamine microspheres. AAPS PharmSciTech 2012; 13:75-84. [PMID: 22130789 PMCID: PMC3299443 DOI: 10.1208/s12249-011-9721-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2011] [Accepted: 11/04/2011] [Indexed: 11/30/2022] Open
Abstract
The aim of this work was to understand the influence of different formulation variables on the optimization of pH-dependent, colon-targeted, sustained-release mesalamine microspheres prepared by O/O emulsion solvent evaporation method, employing pH-dependent Eudragit S and hydrophobic pH-independent ethylcellulose polymers. Formulation variables studied included concentration of Eudragit S in the internal phase and the ratios between; internal to external phase, drug to Eudragit S and Eudragit S to ethylcellulose to mesalamine. Prepared microspheres were evaluated by carrying out in vitro release studies and determination of particle size, production yield, and encapsulation efficiency. In addition, morphology of microspheres was examined using optical and scanning electron microscopy. Emulsion solvent evaporation method was found to be sensitive to the studied formulation variables. Particle size and encapsulation efficiency increased by increasing Eudragit S concentration in the internal phase, ratio of internal to external phase, and ratio of Eudragit S to the drug. Employing Eudragit S alone in preparation of the microspheres is only successful in forming acid-resistant microspheres with pulsatile release pattern at high pH. Eudragit S and ethylcellulose blend microspheres were able to control release under acidic condition and to extend drug release at high pH. The stability studies carried out at 40°C/75% RH for 6 months proved the stability of the optimized formulation. From the results of this investigation, microencapsulation of mesalamine in microspheres using blend of Eudragit S and ethylcellulose could constitute a promising approach for site-specific and controlled delivery of drug in colon.
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Affiliation(s)
- Ahmed Abd El-Bary
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Kasr El-aini Street, Cairo, 11562 Egypt
| | - Ahmed A. Aboelwafa
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Kasr El-aini Street, Cairo, 11562 Egypt
| | - Ibrahim M. Al Sharabi
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Kasr El-aini Street, Cairo, 11562 Egypt
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Zhou Z, Liu L, Liu Q, Zhao Y, Xu G, Tang A, Zeng W, Yi Q, Zhou J. Study on Controlled Release of 5-Fluorouracil from Gelatin/Chitosan Microspheres. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2012. [DOI: 10.1080/10601325.2012.728464] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Chitosan microspheres as a delivery system for nasal insufflation. Colloids Surf B Biointerfaces 2011; 84:384-9. [DOI: 10.1016/j.colsurfb.2011.01.030] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2010] [Revised: 01/18/2011] [Accepted: 01/20/2011] [Indexed: 11/22/2022]
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12
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Mathew ST, Devi SG, Prasanth VV, Vinod B. Formulation and in vitro-in vivo evaluation of ketoprofen-loaded albumin microspheres for intramuscular administration. J Microencapsul 2011; 26:456-69. [PMID: 19606940 DOI: 10.1080/02652040802420367] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
The objective of this work was to prepare and evaluate ketoprofen-loaded albumin microspheres for intramuscular administration. Microspheres were prepared by emulsion cross-linking method using a 2(3) factorial design and the effect of different factors on entrapment efficiency was determined. Microspheres were evaluated for entrapment efficiency, percentage yield, particle size and release behaviour. Selected formulations were then tested by differential scanning calorimetry, X-ray diffraction and scanning electron microscopy. Further they were analysed for residual solvents, syringeability and stability. Microspheres were then sterilized and bioavailability studies were carried out in New Zealand white rabbits. The physical characteristics of microspheres showed that they were suitable for IM administration. The sterilization technique adopted was adequate to maintain sterility. In vivo studies showed increase in C(max), AUC, t(1/2) and MRT (p < 0.05) administered in the form of microspheres. MRT of ketoprofen was almost 3.2-times in the form of microspheres. From these results it was concluded that the developed albumin microspheres of ketoprofen is a potential delivery system for once-a-day intramuscular administration.
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Affiliation(s)
- Sam T Mathew
- Department of Pharmaceutics, Al-Ameen College of Pharmacy, Bangalore-27, India.
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Annan NT, Borza A, Moreau DL, Allan-Wojtas PM, Hansen LT. Effect of process variables on particle size and viability ofBifidobacterium lactisBb-12 in genipin-gelatin microspheres. J Microencapsul 2008; 24:152-62. [PMID: 17454426 DOI: 10.1080/02652040601162475] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Gelatin microspheres cross-linked with genipin were developed to encapsulate the probiotic Bifidobacterium lactis Bb-12 The effects of different gelatin concentrations (10-19% w/v), bloom strengths (175 and 300), surfactants, stirring rates during emulsion formation and genipin concentrations (0-10 mM) on the microsphere sizes and viability of bacterial cells were investigated. Principal Component Analysis revealed microsphere size distribution differed depending on the presence or absence of surfactants as well as a trend of increasing micropshere size with increasing gelatin concentration and bloom strength. Lower stirring rates resulted in larger microspheres with higher encapsulation yields of bifidobacteria Microsphere size and cell viability were not significantly (p < 0.05) influenced by increasing genipin concentrations up to 10 mM whereas microsphere stability in simulated gastric juice increased with increasing genipin concentration. The encapsulation yields were higher in 175 bloom strength gelatin microspheres than in 300. Cold-stage scanning electron microscopy showed encapsulated bacteria distributed throughout the genipin cross-linked gelatin matrix.
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Affiliation(s)
- N T Annan
- Food Science Program, Department of Process Engineering and Applied Science, Dalhousie University, Halifax, Nova Scotia, Canada
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Zhao H, Gagnon J, Häfeli UO. Process and formulation variables in the preparation of injectable and biodegradable magnetic microspheres. BIOMAGNETIC RESEARCH AND TECHNOLOGY 2007; 5:2. [PMID: 17407608 PMCID: PMC1863415 DOI: 10.1186/1477-044x-5-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2007] [Accepted: 04/04/2007] [Indexed: 11/10/2022]
Abstract
The aim of this study was to prepare biodegradable sustained release magnetite microspheres sized between 1 to 2 microm. The microspheres with or without magnetic materials were prepared by a W/O/W double emulsion solvent evaporation technique using poly(lactide-co-glycolide) (PLGA) as the biodegradable matrix forming polymer. Effects of manufacturing and formulation variables on particle size were investigated with non-magnetic microspheres. Microsphere size could be controlled by modification of homogenization speed, PLGA concentration in the oil phase, oil phase volume, solvent composition, and polyvinyl alcohol (PVA) concentration in the outer water phase. Most influential were the agitation velocity and all parameters that influence the kinematic viscosity of oil and outer water phase, specifically the type and concentration of the oil phase. The magnetic component yielding homogeneous magnetic microspheres consisted of magnetite nanoparticles of 8 nm diameter stabilized with a polyethylene glycole/polyacrylic acid (PEG/PAA) coating and a saturation magnetization of 47.8 emu/g. Non-magnetic and magnetic microspheres had very similar size, morphology, and size distribution, as shown by scanning electron microscopy. The optimized conditions yielded microspheres with 13.7 weight% of magnetite and an average diameter of 1.37 microm. Such biodegradable magnetic microspheres seem appropriate for vascular administration followed by magnetic drug targeting.
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Affiliation(s)
- Hong Zhao
- Faculty of Pharmaceutical Sciences, The University of British Columbia, 2146 East Mall, Vancouver, B.C. V6T 1Z3, Canada
| | - Jeffrey Gagnon
- Faculty of Pharmaceutical Sciences, The University of British Columbia, 2146 East Mall, Vancouver, B.C. V6T 1Z3, Canada
| | - Urs O Häfeli
- Faculty of Pharmaceutical Sciences, The University of British Columbia, 2146 East Mall, Vancouver, B.C. V6T 1Z3, Canada
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