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de Luna Rocha TC, Dos Santos Lima MJ, Nunes do Nascimento JL, Ferreira de Oliveira J, de Oliveira Silva E, Barbosa Dos Santos VH, de Lima Aires A, de Albuquerque Wanderley Sales V, Atanazio Rosa T, Rolim Neto PJ, Camelo Pessôa de Azevedo Albuquerque M, Alves de Lima MDC, Ferreira da Silva RM. Development and evaluation of the in vitro schistosomicidal activity of solid dispersions based on 2-(-5-bromo-1-H-indole-3-yl-methylene)-N-(naphthalene-1-ylhydrazine-carbothiamide. Exp Parasitol 2024; 256:108626. [PMID: 37972848 DOI: 10.1016/j.exppara.2023.108626] [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: 11/27/2022] [Revised: 09/11/2023] [Accepted: 09/25/2023] [Indexed: 11/19/2023]
Abstract
Among all the neglected diseases, schistosomiasis is considered the second most important parasitic infection after malaria. Praziquantel is the most widely used drug for this disease, but its exclusive use may result in the development of drug-resistant schistosomiasis. To increase the control of the disease, new drugs have been developed as alternative treatments, among them 2-(-5-bromo-1-h-indole-3-yl-methylene)-N-(naphthalene-1-ylhydrazine-carbothiamide (LQIT/LT-50), which showed promising schistosomicidal activity in nonclinical studies. However, LQIT/LT-50 presents low solubility in water, resulting in reduced bioavailability. To overcome this solubility problem, the present study aimed to develop LQIT/LT-50 solid dispersions for the treatment of schistosomiasis. Solid dispersions were prepared through the solvent method using Soluplus©, polyethylene glycol (PEG) or polyvinylpyrrolidone (PVP K-30) as hydrophilic carriers. The formulations with the best results in the compatibility tests, aqueous solubility and preliminary stability studies have undergone solubility tests and physicochemical characterizations by Fourier-transform infrared spectroscopy (FTIR), x-ray diffractometry (XRD), exploratory differential calorimetry (DSC), thermogravimetry (TG) and Raman spectroscopy. Finally, the schistosomicidal activity was evaluated in vitro. The phycochemical analyzes showed that when using PVP K-30, there was an interaction between the PVP K-30 and LQIT/LT-50, proving the successful development of the solid dispersion. Furthermore, an increase in the solubility of the new system was observed (LQIT/LT-50:PVP K-30) in addition to the improvement in the in vitro shistosomidal activity at 1:4 (w/w) molar ratio (i.e., 20% drug loading) when compared to LQIT/LT-50 alone. The development of the LQIT/LT-50:PVP K-30 1:4 solid dispersion is encouraging for the future development of new pharmaceutical solid formulations, aiming the schistosomicidal treatment.
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Affiliation(s)
| | | | | | - Jamerson Ferreira de Oliveira
- Institute of Health Sciences, University of International Integration of Afro-Brazilian Lusophony, Redenção, Ceará, Brazil
| | | | | | - André de Lima Aires
- Department of Tropical Medicine, Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | | | - Talita Atanazio Rosa
- Department of Pharmacy, Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | - Pedro José Rolim Neto
- Department of Pharmacy, Federal University of Pernambuco, Recife, Pernambuco, Brazil
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Zhang Y, Liu F, Cao Y, Xu H, Xie Y, Xiao X, Agyekumwaa Addo K, Peng XF. Preparation and characterization of a solid dispersion of Hexahydrocolupulone and its application in the preservation of fresh apple juice. Food Chem 2023; 424:136367. [PMID: 37207607 DOI: 10.1016/j.foodchem.2023.136367] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 05/09/2023] [Accepted: 05/10/2023] [Indexed: 05/21/2023]
Abstract
Hops extracts and their derivatives have many important biological activities, among them, excellent antibacterial and antioxidant properties make them a promising food preservative. However, poor water solubility limits their application in the food industry. This work aimed to improve the solubility of Hexahydrocolupulone (HHCL) by preparing solid dispersion (SD) and investigating the application of the obtained products (HHCL-SD) in actual food systems. HHCL-SD was prepared by solvent evaporation with PVPK30 as a carrier. The solubility of HHCL was dramatically increased to 24.72 mg/mL(25 ℃)by preparing HHCL-SD, much higher than that of raw HHCL (0.002 mg/mL). The structure of HHCL-SD and the interaction between HHCL and PVPK30 were analyzed. HHCL-SD was confirmed to have excellent antibacterial and antioxidant activities. Furthermore, the addition of HHCL-SD proved to be beneficial for the sensory, nutritional quality, and microbiological safety of fresh apple juice, hence prolonging its shelf-life.
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Affiliation(s)
- Yan Zhang
- School of Food Science and Engineering, South China University of Technology, Guangzhou City, Guangdong Province 510640, China; School of Chinese Ethnic Medicine, Guizhou Minzu University, Guizhou City, Guiyang Province 550025, China
| | - Fengsong Liu
- School of Food Science and Engineering, South China University of Technology, Guangzhou City, Guangdong Province 510640, China
| | - Yifang Cao
- School of Food Science and Engineering, South China University of Technology, Guangzhou City, Guangdong Province 510640, China
| | - Hao Xu
- School of Food Science and Engineering, South China University of Technology, Guangzhou City, Guangdong Province 510640, China
| | - Yijia Xie
- School of Food Science and Engineering, South China University of Technology, Guangzhou City, Guangdong Province 510640, China
| | - Xinglong Xiao
- School of Food Science and Engineering, South China University of Technology, Guangzhou City, Guangdong Province 510640, China.
| | - Keren Agyekumwaa Addo
- School of Food Science and Engineering, South China University of Technology, Guangzhou City, Guangdong Province 510640, China
| | - Xian-Feng Peng
- Guangzhou Insighter Biotechnology Co. Ltd, Guangzhou City, Guangdong Province 510640, China.
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Characterization of Novel Solid Dispersions of Moringa oleifera Leaf Powder Using Thermo-Analytical Techniques. Processes (Basel) 2021. [DOI: 10.3390/pr9122230] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Moringa oleifera leaf powder (MOLP) has been identified as the most important functional ingredient owing to its rich nutritional profile and healthy effects. The solubility and functional properties of this ingredient can be enhanced through solid dispersion technology. This study aimed to investigate the effects of polyethylene glycols (PEGs) 4000 and 6000 as hydrophilic carriers and solid dispersion techniques (freeze-drying, melting, solvent evaporation, and microwave irradiation) on the crystallinity and thermal stability of solid-dispersed Moringa oleifera leaf powders (SDMOLPs). SDMOLPs were dully characterized using powder X-ray diffraction (PXRD), differential scanning calorimetry (DSC), thermo-gravimetric analysis (TGA), and Fourier transform infrared spectroscopy (FTIR). The PXRD results revealed that the solid dispersions were partially amorphous with strong diffraction peaks at 2θ values of 19° and 23°. The calorimetric and thermogravimetric curves showed that PEGs conferred greater stability on the dispersions. The FTIR studyrevealed the existence of strong intermolecular hydrogen bond interactions between MOLP and PEG functional groups. MOLP solid dispersions may be useful in functional foods and beverages and nutraceutical formulations.
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Ouazib F, Bouslah Mokhnachi N, Haddadine N, Barille R. Role of polymer/polymer and polymer/drug specific interactions in drug delivery systems. JOURNAL OF POLYMER ENGINEERING 2019. [DOI: 10.1515/polyeng-2018-0403] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Drug delivery systems based upon the blending of Arabic gum and poly(N-vinylpyrrolidone) (AG/PVP) were prepared for the controlled release of acebutolol (Acb) hydrochloride. The prepared blends containing Acb were characterized using different techniques. The presence of physical interactions between the drug and polymer matrices was observed with Fourier-transform infrared spectroscopy. These interactions resulted in the transition of the drug from a crystalline to an amorphous state into the polymeric matrices, as demonstrated by differential scanning calorimetry and X-ray diffraction analysis. The thermogravimetric analysis study confirmed the presence of these interactions, which had a stabilizing effect on the drug against both thermal degradation and crystallinity. The in vitro release of Acb from the AG/PVP polymer system was investigated. Each drug-loaded system was used in a tablet formulation. Moreover, an in vitro dissolution study was carried out in three different dissolution media, and comparison of the dissolution profiles of the different dosage forms revealed that the polymer blend matrix had a better release-retarding efficiency. To better understand the release mechanism, the dissolution data were fitted to various release kinetic models.
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Affiliation(s)
- Farid Ouazib
- Laboratory of Macromolecular and Thio-organic Macromolecular Synthesis, Faculty of Chemistry , University of Sciences and Technology Houari Boumediene , BP 32 El Alia , 16111 Algiers , Algeria
| | - Naima Bouslah Mokhnachi
- Laboratory of Macromolecular and Thio-organic Macromolecular Synthesis, Faculty of Chemistry , University of Sciences and Technology Houari Boumediene , BP 32 El Alia , 16111 Algiers , Algeria
| | - Nabila Haddadine
- Laboratory of Macromolecular and Thio-organic Macromolecular Synthesis, Faculty of Chemistry , University of Sciences and Technology Houari Boumediene , BP 32 El Alia , 16111 Algiers , Algeria
| | - Regis Barille
- Moltech Anjou Laboratory, University of Angers/UMR CNRS 6200 2 , Bd Lavoisier , 49045 Angers , France
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Brzyska A, Płaziński W, Woliński K. Force-induced structural changes in non-sulfated carrageenan based oligosaccharides - a theoretical study. SOFT MATTER 2018; 14:6264-6277. [PMID: 30004100 DOI: 10.1039/c8sm00319j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In this work we use the Enforced Geometry Optimization (EGO) approach to simulate force-induced structural changes in the monomer, and di- up to pentameric oligomers of neutral and non-sulfated carrageenan based oligosaccharides. Our results indicate that the monosaccharide unit sequence in the oligomeric structure determines: (i) the type(s) of the enforced conformational transition(s), and (ii) the mechanical resistance to external forces. It is a direct consequence of the different glycosidic bonding types in the examined carregeenan based oligosaccharides.
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Affiliation(s)
- A Brzyska
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, 30-239 Krakow, Poland.
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Smith CJ, Griffin SR, Eakins GS, Deng F, White JK, Thirunahari S, Ramakrishnan S, Sangupta A, Zhang S, Novak J, Liu Z, Rhodes T, Simpson GJ. Triboluminescence from Pharmaceutical Formulations. Anal Chem 2018; 90:6893-6898. [PMID: 29694029 DOI: 10.1021/acs.analchem.8b01112] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Triboluminescence (TL) is shown to enable selective detection of trace crystallinity within nominally amorphous solid dispersions (ASDs). ASDs are increasingly used for the preparation of pharmaceutical formulations, the physical stability of which can be negatively impacted by trace crystallinity introduced during manufacturing or storage. In the present study, TL measurements of a model ASD consisting of griseofulvin in polyethylene glycol produced limits of detection of 140 ppm. Separate studies of the particle size dependence of sucrose crystals and the dependence on polymorphism in clopidogrel bisulfate particles are both consistent with a mechanism for TL closely linked to the piezoelectric response of the crystalline fraction. Whereas disordered polymeric materials cannot support piezoelectric activity, molecular crystals produced from homochiral molecules adopt crystal structures that are overwhelmingly symmetry-allowed for piezoelectricity. Consequently, TL may provide a broadly applicable and simple experimental route for sensitive detection of trace crystallinity within nominally amorphous materials.
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Affiliation(s)
- Casey J Smith
- Department of Chemistry , Purdue University , 560 Oval Drive , West Lafayette Indiana 47906 , United States
| | - Scott R Griffin
- Department of Chemistry , Purdue University , 560 Oval Drive , West Lafayette Indiana 47906 , United States
| | - Gregory S Eakins
- Department of Chemistry , Purdue University , 560 Oval Drive , West Lafayette Indiana 47906 , United States
| | - Fengyuan Deng
- Department of Chemistry , Purdue University , 560 Oval Drive , West Lafayette Indiana 47906 , United States
| | - Julia K White
- Department of Chemistry , Purdue University , 560 Oval Drive , West Lafayette Indiana 47906 , United States
| | | | - Srividya Ramakrishnan
- Dr. Reddy's Laboratory , IPDO , Bachupally Campus, Hyderabad , Telengana , 500090 , India
| | - Atanu Sangupta
- Dr. Reddy's Laboratory , IPDO , Bachupally Campus, Hyderabad , Telengana , 500090 , India
| | - Siwei Zhang
- MRL , Merck & Co., Inc. , Kenilworth , New Jersey 07033 , United States
| | - Julie Novak
- MRL , Merck & Co., Inc. , Kenilworth , New Jersey 07033 , United States
| | - Zhen Liu
- MRL , Merck & Co., Inc. , Kenilworth , New Jersey 07033 , United States
| | - Timothy Rhodes
- MRL , Merck & Co., Inc. , Kenilworth , New Jersey 07033 , United States
| | - Garth J Simpson
- Department of Chemistry , Purdue University , 560 Oval Drive , West Lafayette Indiana 47906 , United States
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Solid dispersions to enhance the delivery of a potential drug candidate LPSF/FZ4 for the treatment of schistosomiasis. Eur J Pharm Sci 2018; 115:270-285. [DOI: 10.1016/j.ejps.2018.01.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 01/08/2018] [Accepted: 01/08/2018] [Indexed: 01/15/2023]
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Characterization, Molecular Docking, and In Vitro Dissolution Studies of Solid Dispersions of 20(S)-Protopanaxadiol. Molecules 2017; 22:molecules22020274. [PMID: 28208662 PMCID: PMC6155859 DOI: 10.3390/molecules22020274] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 01/23/2017] [Accepted: 02/06/2017] [Indexed: 11/17/2022] Open
Abstract
In this study, we prepared solid dispersions (SDs) of 20(S)-protopanaxadiol (PPD) using a melting-solvent method with different polymers, in order to improve the solubility and dissolution performance of drugs with poor water solubility. The SDs were characterized via differential scanning calorimetry (DSC), powder X-ray diffraction (PXRD), Fourier transform infrared spectroscopy (FTIR), nuclear magnetic resonance (NMR), and molecular docking and dynamics study. DSC and PXRD results indicated that PPD crystallinity in SDs was significantly reduced, and that the majority of PPD is amorphous. No interaction was observed between PPD and polymers on FTIR and NMR spectra. Molecular docking and dynamic calculations indicated that the PPD molecule localized to the interpolated charged surface, rather than within the amorphous polymer chain network, which might help prevent PPD crystallization, consequently enhancing the PPD dispersion in polymers. An in vitro dissolution study revealed that the SDs considerably improved the PPD dissolution performance in distilled water containing 0.35% Tween-80 (T-80). Furthermore, among three PPD-SDs formulations, Poloxamer188 (F68) was the most effective in improving the PPD solubility and was even superior to the mixed polymers. Therefore, the SD prepared with F68 as a hydrophilic polymer carrier might be a promising strategy for improving solubility and in vitro dissolution performance. F68-based SD, containing PPD with a melting-solvent preparation method, can be used as a promising, nontoxic, quick-release, and effective intermediate for other pharmaceutical formulations, in order to achieve a more effective drug delivery.
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9
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Nadal JM, Gomes MLS, Borsato DM, Almeida MA, Barboza FM, Zawadzki SF, Farago PV, Zanin SMW. Spray-dried solid dispersions containing ferulic acid: comparative analysis of three carriers, in vitro dissolution, antioxidant potential and in vivo anti-platelet effect. Drug Dev Ind Pharm 2016; 42:1813-24. [DOI: 10.3109/03639045.2016.1173055] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Jessica Mendes Nadal
- Department of Pharmacy, Postgraduate Program in Pharmaceutical Sciences, Federal University of Paraná, Curitiba, Brazil
| | - Mona Lisa Simionatto Gomes
- Department of Pharmacy, Postgraduate Program in Pharmaceutical Sciences, Federal University of Paraná, Curitiba, Brazil
| | - Débora Maria Borsato
- Department of Pharmaceutical Sciences, Postgraduate Program in Pharmaceutical Sciences, State University of Ponta Grossa, Ponta Grossa, Brazil
| | - Martinha Antunes Almeida
- Department of Chemistry, Postgraduate Program in Chemistry, Federal University of Paraná, Curitiba, Brazil
| | - Fernanda Malaquias Barboza
- Department of Pharmaceutical Sciences, Postgraduate Program in Pharmaceutical Sciences, State University of Ponta Grossa, Ponta Grossa, Brazil
| | - Sônia Faria Zawadzki
- Department of Chemistry, Postgraduate Program in Chemistry, Federal University of Paraná, Curitiba, Brazil
| | - Paulo Vitor Farago
- Department of Pharmaceutical Sciences, Postgraduate Program in Pharmaceutical Sciences, State University of Ponta Grossa, Ponta Grossa, Brazil
| | - Sandra Maria Warumby Zanin
- Department of Pharmacy, Postgraduate Program in Pharmaceutical Sciences, Federal University of Paraná, Curitiba, Brazil
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10
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Konnert L, Dimassi M, Gonnet L, Lamaty F, Martinez J, Colacino E. Poly(ethylene) glycols and mechanochemistry for the preparation of bioactive 3,5-disubstituted hydantoins. RSC Adv 2016. [DOI: 10.1039/c6ra03222b] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Mechanochemistry was effective for the preparation of 3,5-disubstituted hydantoins from α-amino methyl esters, using either 1,1′-carbonyldiimidazole (CDI) or alkyl isocyanates.
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Affiliation(s)
- L. Konnert
- Institut des Biomolécules Max Mousseron (IBMM)
- UMR 5247 CNRS – UM – ENSCM
- Green Chemistry and Enabling Technology Team
- Université de Montpellier
- 34095 Montpellier Cedex 5
| | - M. Dimassi
- Institut des Biomolécules Max Mousseron (IBMM)
- UMR 5247 CNRS – UM – ENSCM
- Green Chemistry and Enabling Technology Team
- Université de Montpellier
- 34095 Montpellier Cedex 5
| | - L. Gonnet
- Institut des Biomolécules Max Mousseron (IBMM)
- UMR 5247 CNRS – UM – ENSCM
- Green Chemistry and Enabling Technology Team
- Université de Montpellier
- 34095 Montpellier Cedex 5
| | - F. Lamaty
- Institut des Biomolécules Max Mousseron (IBMM)
- UMR 5247 CNRS – UM – ENSCM
- Green Chemistry and Enabling Technology Team
- Université de Montpellier
- 34095 Montpellier Cedex 5
| | - J. Martinez
- Institut des Biomolécules Max Mousseron (IBMM)
- UMR 5247 CNRS – UM – ENSCM
- Green Chemistry and Enabling Technology Team
- Université de Montpellier
- 34095 Montpellier Cedex 5
| | - E. Colacino
- Institut des Biomolécules Max Mousseron (IBMM)
- UMR 5247 CNRS – UM – ENSCM
- Green Chemistry and Enabling Technology Team
- Université de Montpellier
- 34095 Montpellier Cedex 5
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11
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Pordeus RQ, Rego DG, Oliveira BG. The electronic donation and frequency shifts on the YCCH⋯BH₄⁻ boron-bonded complexes (Y=H, CH₃, CF₃ and CCl₃). SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 145:580-587. [PMID: 25812944 DOI: 10.1016/j.saa.2015.02.070] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Revised: 01/28/2015] [Accepted: 02/18/2015] [Indexed: 06/04/2023]
Abstract
In this theoretical work, the tetrahydroborate ion (BH4(-)) was used as proton acceptor in the formation of the YCC-H⋯BH4(-) complexes (Y=H, CH3, CCl3 and CF3). Using B3LYP/6-311++G(d,p) level of theory, the results of structure corroborate with the analyses of infrared spectra showing that the changes in the bond lengths are in good agreement with the frequency shifts of the HCC-H, H3CCC-H, Cl3CCC-H and F3CCC-H proton donors. Based on the calculations carried out by the Quantum Theory of Atoms in Molecules (QTAIM), the reductions of electronic density corroborate with the red shifts in the frequencies of the C-H bonds. In addition to that, the C-H bonds are polarized because the contributions of s orbital diminish whereas of p increase. In line with this, the variations on the atomic radii computed via QTAIM calculations show that carbon outweigh hydrogen as follows (ΔrC>ΔrH). This scenario is indirectly supported by the Bent's rule of the chemical bonding. Although the interaction energies (corrected with BSSE and ZPE) vary between -19 and -67 kJ mol(-1), these complexes interact without covalent character.
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Affiliation(s)
- Renato Q Pordeus
- Institute of Environmental Sciences and Sustainable Development, Federal University of Bahia, 47.808-021, Barreiras, Brazil
| | - Danilo G Rego
- Institute of Environmental Sciences and Sustainable Development, Federal University of Bahia, 47.808-021, Barreiras, Brazil
| | - Boaz G Oliveira
- Institute of Environmental Sciences and Sustainable Development, Federal University of Bahia, 47.808-021, Barreiras, Brazil.
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Yan HM, Zhang ZH, Jiang YR, Ding DM, Sun E, Jia XB. An attempt to stabilize tanshinone IIA solid dispersion by the use of ternary systems with nano-CaCO3 and poloxamer 188. Pharmacogn Mag 2014; 10:S311-7. [PMID: 24991109 PMCID: PMC4078353 DOI: 10.4103/0973-1296.133286] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2013] [Revised: 11/22/2013] [Accepted: 05/28/2014] [Indexed: 11/16/2022] Open
Abstract
Background: Tanshinone IIA (TSIIA) on solid dispersions (SDs) has thermodynamical instability of amorphous drug. Ternary solid dispersions (tSDs) can extend the stability of the amorphous form of drug. Poloxamer 188 was used as a SD carrier. Nano-CaCO3 played an important role in adsorption of biomolecules and is being developed for a host of biotechnological applications. Objective: The aim of the present study was to investigate the dissolution behavior and accelerated stability of TSIIA on solid dispersions (SDs) by the use of ternary systems with nano-CaCO3 and poloxamer 188. Materials and Methods: The TSIIA tSDs were prepared by a spray-drying method. First, the effect of combination of poloxamer 188 and nano-CaCO3 on TSIIA dissolution was studied. Subsequently, a set of complementary techniques (DSC, XRPD, SEM and FTIR) was used to monitor the physical changes of TSIIA in the SDs. Finally, stability test was carried out under the conditions 40°C/75% RH for 6 months. Results: The characterization of tSDs by differential scanning calorimetry analysis (DSC) and X-ray powder diffraction (XRPD) showed that TSIIA was present in its amorphous form. Fourier transforms infrared spectroscopy (FTIR) suggested the presence of interactions between TSIIA and carriers in tSDs. Improvement in the dissolution rate was observed for all SDs. The stability study conducted on SDs with nano-CaCO3 showed stable drug content and dissolution behavior, over the period of 6 months as compared with freshly prepared SDs. Conclusion: SDs preparation with nano-CaCO3 and poloxamer 188 may be a promising approach to enhance the dissolution and stability of TSIIA.
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Affiliation(s)
- Hong-Mei Yan
- Key Laboratory of New Drug Delivery System of Chinese Materia Medica, Jiangsu Provincial Academy of Chinese Medicine; College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China ; College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Zhen-Hai Zhang
- Key Laboratory of New Drug Delivery System of Chinese Materia Medica, Jiangsu Provincial Academy of Chinese Medicine; College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Yan-Rong Jiang
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Dong-Mei Ding
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - E Sun
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Xiao-Bin Jia
- Key Laboratory of New Drug Delivery System of Chinese Materia Medica, Jiangsu Provincial Academy of Chinese Medicine; College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
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Ding SM, Zhang ZH, Song J, Cheng XD, Jiang J, Jia XB. Enhanced bioavailability of apigenin via preparation of a carbon nanopowder solid dispersion. Int J Nanomedicine 2014; 9:2327-33. [PMID: 24872695 PMCID: PMC4026550 DOI: 10.2147/ijn.s60938] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
In this study, a novel carbon nanopowder (CNP) drug carrier was developed to improve the oral bioavailability of apigenin (AP). Solid dispersions (SDs) of AP with CNP were prepared, and their in vitro drug release and in vivo performance were evaluated. The physicochemical properties of the formulations were examined by differential scanning calorimetry, X-ray diffraction, and scanning electron microscopy. Drug release profiles showed that AP dissolution from the CNP-AP system (weight ratio, 6:1) after 60 minutes improved by 275% compared with that of pure AP. Moreover, the pharmacokinetic analysis of SD formulations in rats showed that the AP area under the curve0–t value was 1.83 times higher for the CNP-AP system than for pure AP, indicating that its bioavailability was significantly improved. In addition, compared with pure AP, SDs had a significantly higher peak and shorter time to peak. Preliminary intestinal toxicity tests indicated that there was no significant difference in the tissues of the rats treated with the CNP-AP system, rats treated with the CNP alone, and controls. In conclusion, CNP-based SDs could be used for enhancing the bioavailability of poorly water-soluble drugs while also improving drug safety.
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Affiliation(s)
- Shu-min Ding
- Affiliated Hospital on Integration of Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, People's Republic of China ; School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou, People's Republic of China ; Key Laboratory of New Drug Delivery System of Chinese Materia Medica, Jiangsu Provincial Academy of Chinese Medicine, Nanjing, People's Republic of China
| | - Zhen-hai Zhang
- Affiliated Hospital on Integration of Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, People's Republic of China ; Key Laboratory of New Drug Delivery System of Chinese Materia Medica, Jiangsu Provincial Academy of Chinese Medicine, Nanjing, People's Republic of China
| | - Jie Song
- Affiliated Hospital on Integration of Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, People's Republic of China ; Key Laboratory of New Drug Delivery System of Chinese Materia Medica, Jiangsu Provincial Academy of Chinese Medicine, Nanjing, People's Republic of China
| | - Xu-dong Cheng
- Affiliated Hospital on Integration of Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, People's Republic of China ; Key Laboratory of New Drug Delivery System of Chinese Materia Medica, Jiangsu Provincial Academy of Chinese Medicine, Nanjing, People's Republic of China
| | - Jun Jiang
- Affiliated Hospital on Integration of Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, People's Republic of China ; Key Laboratory of New Drug Delivery System of Chinese Materia Medica, Jiangsu Provincial Academy of Chinese Medicine, Nanjing, People's Republic of China
| | - Xiao-bin Jia
- Affiliated Hospital on Integration of Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, People's Republic of China ; Key Laboratory of New Drug Delivery System of Chinese Materia Medica, Jiangsu Provincial Academy of Chinese Medicine, Nanjing, People's Republic of China
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Jiang YR, Zhang ZH, Liu QY, Hu SY, Chen XY, Jia XB. Preparation, characterization, and in vivo evaluation of tanshinone IIA solid dispersions with silica nanoparticles. Int J Nanomedicine 2013; 8:2285-93. [PMID: 23836971 PMCID: PMC3699171 DOI: 10.2147/ijn.s40374] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
We prepared solid dispersions (SDs) of tanshinone IIA (TSIIA) with silica nanoparticles, which function as dispersing carriers, using a spray-drying method and evaluated their in vitro dissolution and in vivo performance. The extent of TSIIA dissolution in the silica nanoparticles/TSIIA system (weight ratio, 5:1) was approximately 92% higher than that of the pure drug after 60 minutes. However, increasing the content of silica nanoparticles from 5:1 to 7:1 in this system did not significantly increase the rate or extent of TSIIA dissolution. The physicochemical properties of SDs were investigated using scanning electron microscopy, differential scanning calorimetry, X-ray powder diffraction, and Fourier transforms infrared spectroscopy. Studying the stability of the SDs of TSIIA revealed that the drug content of the formulation and dissolution behavior was unchanged under the applied storage conditions. In vivo tests showed that SDs of the silica nanoparticles/TSIIA had a significantly larger area under the concentration-time curve, which was 1.27 times more than that of TSIIA (P < 0.01). Additionally, the values of maximum plasma concentration and the time to reach maximum plasma concentration of the SDs were higher than those of TSIIA and the physical mixing system. Based on these results, we conclude that the silica nanoparticle based SDs achieved complete dissolution, increased absorption rate, maintained drug stability, and showed improved oral bioavailability compared to TSIIA alone.
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Affiliation(s)
- Yan-rong Jiang
- Key Laboratory of New Drug Delivery System of Chinese Materia Medica, Jiangsu Provincial Academy of Chinese Medicine, Nanjing, Jiangsu, People's Republic of China
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15
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Hou P, Ni J, Cao S, Lei H, Cai Z, Zhang T, Yu F, Tan Q. Preparation and evaluation of solid dispersions of a new antitumor compound based on early-stage preparation discovery concept. AAPS PharmSciTech 2013; 14:629-38. [PMID: 23636816 DOI: 10.1208/s12249-013-9948-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2012] [Accepted: 02/25/2013] [Indexed: 11/30/2022] Open
Abstract
Ensuring sufficient drug solubility is a crucial problem in pharmaceutical-related research. For water-insoluble drugs, various formulation approaches are employed to enhance the solubility and bioavailability of lead compounds. The goal of this study was to enhance the dissolution and absorption of a new antitumor lead compound, T-OA. Early-stage preparation discovery concept was employed in this study. Based on this concept, a solid dispersion system was chosen as the method of improving drug solubility and bioavailability. Solid dispersions of T-OA in polyvinylpyrrolidone (PVP) K30 were prepared by the solvent evaporation method. Dissolution testing determined that the ideal drug-to-PVP ratio was 1:5. X-ray diffraction, Fourier transform infrared spectroscopy, and differential scanning calorimetry were employed to confirm the formation of solid dispersions. Scanning electron microscopy demonstrated that T-OA was converted into an amorphous form. Both in vitro dissolution testing and the in vivo studies demonstrated that the solubility and bioavailability of T-OA were significantly improved when formulated in a solid dispersion with PVP. The dissolution rate of the T-OA/PVP solid dispersion was greatly enhanced relative to the pure drug, and the relative bioavailability of T-OA solid dispersions was found to be 392.0%, which is 4-fold higher than the pure drug.
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Yu M, Sun L, Li W, Lan Z, Li B, Tan L, Li M, Yang X. Investigation of structure and dissolution properties of a solid dispersion of lansoprazole in polyvinylpyrrolidone. J Mol Struct 2011. [DOI: 10.1016/j.molstruc.2011.08.019] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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17
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Yu DG, Williams GR, Wang X, Yang JH, Li XY, Qian W, Li Y. Polymer-based nanoparticulate solid dispersions prepared by a modified electrospraying process. ACTA ACUST UNITED AC 2011. [DOI: 10.4236/jbise.2011.412091] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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