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Wang L, Liu L, Cheng S, Zhu J, Xie H, Zhao W. In vitro and in vivo study of andrographolide nanoparticles for the treatment of Mycoplasma pneumoniae pneumonia. Biochem Biophys Res Commun 2024; 698:149540. [PMID: 38266313 DOI: 10.1016/j.bbrc.2024.149540] [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: 12/06/2023] [Revised: 01/06/2024] [Accepted: 01/15/2024] [Indexed: 01/26/2024]
Abstract
OBJECTIVE(S) The emergence of antibiotic resistance has led to suboptimal treatment outcomes for Mycoplasma pneumoniae pneumonia (MPP). Exploring naturally occurring drug components that are both effective against MPP and non-toxic may be a promising choice. This study aimed to investigate the therapeutic effect of andrographolide nanoparticles on pneumonia caused by Mycoplasma pneumoniae infection. METHODS Andrographolide alginate-poloxamer nanoparticles (AND-ALG-POL/NPs) were obtained by wet medium grinding, and the characterization and in vitro release of the prepared andrographolide nanoparticles were examined by high performance liquid chromatography, particle size analyzer, zeta potential meter and transmission electron microscopy. The cytotoxicity and anti-inflammatory effects of AND-ALG-POL/NPs were evaluated in vitro by MP-infected lung epithelial cells BEAS-2B. Symptoms of pneumonia, total cell count, total protein content and inflammatory factor levels in BALF were assessed by MP-induced pneumonia in BALB/c mice treated with AND-ALG-POL/NPs, and histopathological studies were performed on lung tissues from experimental animals. RESULTS The results showed that the prepared AND-ALG-POL/NPs were homogeneous spherical with a diameter of 180 ± 23 nm, a zeta potential of (-14.4 ± 2.1) mV, an average encapsulation rate of 87.74 ± 0.87 %, and an average drug loading of 13.17 ± 0.54 %. AND-ALG-POL/NPs were capable of slow release in vitro and showed significant inhibitory ability against MP (P < 0.001). However, AND-ALG-POL/NPs were not cytotoxic to normal cells and alleviated MP infection-induced apoptosis and elevated inflammatory factors. In the in vivo experiments, AND-ALG-POL/NPs alleviated the symptoms of pneumonia in MPP mice, reduced the abnormally elevated total cell count, total protein content and inflammatory factor levels in BALF, and alleviated lung tissue edema, inflammatory cell infiltration and apoptosis (P < 0.001). Meanwhile, the therapeutic effects of AND-ALG-POL/NPs on MPP were similar to those of azithromycin (AZM) and higher than those of andrographolide (AND) free monotherapy (P < 0.001). CONCLUSION In summary, the prepared AND-ALG-POL/NPs can effectively inhibit MPP in vitro and in vivo, and the effect is similar to that of AZM. Therefore, AND- ALG - POL/NPs have the potential to replace AZM as a potential drug for the treatment of MPP.
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Affiliation(s)
- Liling Wang
- Department of Paediatrics, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.
| | - Liwei Liu
- Department of Paediatrics, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Shen Cheng
- Department of Paediatrics, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Jiawen Zhu
- Department of Paediatrics, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Huanlai Xie
- Department of Paediatrics, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Wentan Zhao
- Department of Paediatrics, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
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2
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Aldeeb MME, Wilar G, Suhandi C, Elamin KM, Wathoni N. Nanosuspension-Based Drug Delivery Systems for Topical Applications. Int J Nanomedicine 2024; 19:825-844. [PMID: 38293608 PMCID: PMC10824615 DOI: 10.2147/ijn.s447429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 12/29/2023] [Indexed: 02/01/2024] Open
Abstract
Nanosuspensions have garnered recent attention as a promising strategy for mitigating the bioavailability challenges of hydrophobic drugs, particularly those characterized by poor solubility in both aqueous and organic environments. Addressing solubility issues associated with poorly water-soluble drugs has largely resolved the need to enhance drug absorption and bioavailability. As mucosal formulations and topical administration progress in the future, nanosuspension drug delivery, straightforward formulation techniques, and versatile applications will continue to be subjects of interest. Nanosuspensions have undergone extensive scrutiny in preparation for topical applications, encompassing ocular, pulmonary, and dermal usage. Among the numerous methods aimed at improving cutaneous application, nanocrystals represent a relatively recent yet profoundly intriguing approach. Despite the increasing availability of various nanosuspension products, primarily designed for oral administration, only a limited number of studies have explored skin permeability and drug accumulation in the context of nanosuspensions. Nevertheless, the scant published research unequivocally underscores the potential of this approach for enhancing cutaneous bioavailability, particularly for active ingredients with low to medium solubility. Nanocrystals exhibit increased skin adhesiveness in addition to heightened saturation solubility and dissolution rate, thereby augmenting cutaneous distribution. The article provides a comprehensive overview of nanosuspensions for topical application. The methodology employed is robust, with a well-defined experimental design; however, the limited sample size raises concerns about the generalizability of the findings. While the results demonstrate promising outcomes in terms of enhanced drug delivery, the discussion falls short of addressing certain limitations. Additionally, the references largely focus on recent studies, but a more diverse inclusion of historical perspectives could offer a more holistic view of the subject.
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Affiliation(s)
- Mohamed Mahmud E Aldeeb
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Jatinangor, 45363, Indonesia
- Department of Pharmaceutics, Faculty of Pharmacy, Elmergib University, Alkhoms, 40414, Libya
| | - Gofarana Wilar
- Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, Universitas Padjadjaran, Jatinangor, 45363, Indonesia
| | - Cecep Suhandi
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Jatinangor, 45363, Indonesia
| | - Khaled M Elamin
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, 862-0973, Japan
| | - Nasrul Wathoni
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Jatinangor, 45363, Indonesia
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3
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Simsekli O, Bilinmis I, Celik S, Arık G, Baba AY, Karakucuk A. Advancing biofilm management through nanoformulation strategies: a review of dosage forms and administration routes. J Drug Target 2023; 31:931-949. [PMID: 37831630 DOI: 10.1080/1061186x.2023.2270619] [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: 07/24/2023] [Accepted: 10/06/2023] [Indexed: 10/15/2023]
Abstract
Biofilms are complex microbial communities formed by the attachment of bacteria or fungi to surfaces encased in a self-produced polymeric matrix. These biofilms are highly resistant to conventional antimicrobial therapies. The resistance mechanisms exhibited by biofilms include low antibiotic absorption, sluggish replication, adaptive stress response, and the formation of dormant-like phenotypes. The eradication of biofilms requires alternative strategies and approaches. Nanotechnological drug delivery systems allow excellent control over the drug chemistry, surface area, particle size, particle shape, and composition of nanostructures. Nanoformulations can enhance the efficacy of antimicrobial agents by improving their bioavailability, stability, and targeted delivery to the site of infection that helps biofilm eradication more effectively. In addition to nanoformulations, the route of administration and choice of dosage forms play a crucial role in treating biofilm infections. Systemic administration of antibiotics is effective in controlling systemic infection and sepsis associated with biofilms. Alternative routes of administration, such as inhalation, vaginal, ocular, or dermal, have been explored to target biofilm infections in specific organs. This review primarily examines the utilisation of nanoformulations in various administration routes for biofilm management. It also provides an overview of biofilms, current approaches, and the drawbacks associated with conventional methods.
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Affiliation(s)
- Oyku Simsekli
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Ankara Medipol University, Ankara, Turkey
| | - Irfan Bilinmis
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Ankara Medipol University, Ankara, Turkey
| | - Sumeyye Celik
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Ankara Medipol University, Ankara, Turkey
| | - Gizem Arık
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Ankara Medipol University, Ankara, Turkey
| | - Abdullah Yucel Baba
- Vocational School of Health Sciences, Ankara Medipol University, Ankara, Turkey
| | - Alptug Karakucuk
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Ankara Medipol University, Ankara, Turkey
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4
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Toledo RP, Gonçalves RA, Baldan MR, Berengue OM. Cotton-Like Three-Dimensional Sb 4O 5Cl 2 Structures: Synthesis and Ammonium Hydroxide Sensing. ACS OMEGA 2023; 8:41295-41301. [PMID: 37969988 PMCID: PMC10634201 DOI: 10.1021/acsomega.3c04751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 09/07/2023] [Indexed: 11/17/2023]
Abstract
Nanostructured materials have emerged as valuable tools for the advancement of novel electrocatalysts. Among them, three-dimensional metal oxides have gained significant attention due to their excellent conductivity, cost-effectiveness, and unique design. This study focuses on the synthesis of cotton-like three-dimensional antimony oxychloride (Sb4O5Cl2) structures through a straightforward precipitation method. The nanostructures exhibit immense potential for sensing applications. Electrochemical characterization reveals that the Sb4O5Cl2 heterostructure demonstrates a remarkable double-layer capacitance of 662 F/cm2, accompanied by excellent cyclic stability. The sensor's performance was tested for the detection of ammonium hydroxide (HA) in NaCl solution, yielding sensitivities ranging from 0.95 to 0.140 mA mM-1 cm-2 and a detection limit of 4.54 μM within a wide detection range of 0.3-250 mM. The sensor device possesses a distinctive cotton-like structure and is synthesized through a simple and cost-effective route.
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Affiliation(s)
- Rosimara P. Toledo
- Department
of Physics, School of Engineering and Sciences, São Paulo State University (UNESP), Guaratinguetá, São
Paulo 12516-410, Brazil
| | - Rosana A. Gonçalves
- Instituto
Federal do Norte de Minas (IFNMG), Campus Januária, Montes Claros, Minas Gerais 39480-000, Brazil
| | - Maurício R. Baldan
- PDM3A
– Department of Space Engineering and Technology, National Institute of Space Research (INPE), São José dos Campos, São Paulo 12227-010, Brazil
| | - Olivia M. Berengue
- Department
of Physics, School of Engineering and Sciences, São Paulo State University (UNESP), Guaratinguetá, São
Paulo 12516-410, Brazil
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Özdemir S, Üner B, Karaküçük A, Çelik B, Sümer E, Taş Ç. Nanoemulsions as a Promising Carrier for Topical Delivery of Etodolac: Formulation Development and Characterization. Pharmaceutics 2023; 15:2510. [PMID: 37896270 PMCID: PMC10610052 DOI: 10.3390/pharmaceutics15102510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 10/16/2023] [Accepted: 10/20/2023] [Indexed: 10/29/2023] Open
Abstract
This research primarily focuses on the development of innovative topical nanoemulsions for etodolac, aimed at surmounting its inherent limitations. The preparation of etodolac nanoemulsions is accomplished through a combination of high shear homogenization and ultrasonication methods. The optimization of the formulation components is systematically conducted using the design of experiments methodology. The droplet size (DS), polydispersity index (PDI), and zeta potential (ZP) of the optimized formulation were assessed using the differential light scattering (DLS) technique. Surface morphology examinations were conducted using electron microscopy, while interactions between excipients and the drug were analyzed through FTIR analysis. Additionally, in vitro release and ex vivo permeability studies were carried out. Furthermore, anti-inflammatory activity was evaluated in the context of a carrageenan-induced paw edema model in rats. The DS, PDI, and ZP of the optimal formulation were 163.5 nm, 0.141, and -33.1 mV, respectively. The in vitro release profile was assessed as a sustained release by following a non-Fickian drug transport. The flux of etodolac nanoemulsions and coarse dispersions were 165.7 ± 11.7 µg/cm2 h and 59.7 ± 15.2 µg/cm2 h, respectively. Enhanced edema inhibition was observed at 13.4%, 36.5%, and 50.65% for the 6th, 8th, and 24th hours, respectively. Taken together, these results confirmed that nanoemulsions are promising carriers for the topical delivery of etodolac.
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Affiliation(s)
- Samet Özdemir
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Istanbul Health and Technology University, 34445 Istanbul, Turkey
| | - Burcu Üner
- Department of Administrative and Pharmaceutical Sciences, University of Health Science and Pharmacy in St. Louis, St. Louis, MO 63110, USA;
| | - Alptuğ Karaküçük
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Ankara Medipol University, 06050 Ankara, Turkey;
| | - Burak Çelik
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Bezmialem Vakif University, 34093 Istanbul, Turkey;
| | - Engin Sümer
- Experimental Research Center (YUDETAM), Faculty of Medicine, Yeditepe University, 34755 Istanbul, Turkey;
| | - Çetin Taş
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Yeditepe University, 34755 Istanbul, Turkey;
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6
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Zhang C, Vora LK, Tekko IA, Volpe-Zanutto F, Peng K, Paredes AJ, McCarthy HO, Donnelly RF. Development of dissolving microneedles for intradermal delivery of the long-acting antiretroviral drug bictegravir. Int J Pharm 2023; 642:123108. [PMID: 37301241 DOI: 10.1016/j.ijpharm.2023.123108] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 06/02/2023] [Accepted: 06/05/2023] [Indexed: 06/12/2023]
Abstract
Oral administration and intramuscular (IM) injection are commonly recommended options for human immunodeficiency virus (HIV) treatment. However, poor patient compliance due to daily oral dosing, pain at injection sites and the demand for trained healthcare staff for injections limit the success of these administration routes, especially in low-resource settings. To overcome these limitations, for the first time, we propose novel bilayer dissolving microneedles (MNs) for the intradermal delivery of long-acting nanosuspensions of the antiretroviral (ARV) drug bictegravir (BIC) for potential HIV treatment and prevention. The BIC nanosuspensions were prepared using a wet media milling technique on a laboratory scale with a particle size of 358.99 ± 18.53 nm. The drug loading of nanosuspension-loaded MNs and BIC powder-loaded MNs were 1.87 mg/0.5 cm2 and 2.16 mg/0.5 cm2, respectively. Both dissolving MNs exhibited favorable mechanical and insertion ability in the human skin simulant Parafilm® M and excised neonatal porcine skin. Importantly, the pharmacokinetic profiles of Sprague Dawley rats demonstrated that dissolving MNs were able to intradermally deliver 31% of drug loading from nanosuspension-loaded MNs in the form of drug depots. After a single application, both coarse BIC and BIC nanosuspensions achieved sustained release, maintaining plasma concentrations above human therapeutic levels (162 ng/mL) in rats for 4 weeks. These minimally invasive and potentially self-administered MNs could improve patient compliance, providing a promising platform for the delivery of nanoformulated ARVs and resulting in prolonged drug release, particularly for patients in low-resource settings.
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Affiliation(s)
- Chunyang Zhang
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn, Road, Belfast BT9 7BL, UK
| | - Lalitkumar K Vora
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn, Road, Belfast BT9 7BL, UK
| | - Ismaiel A Tekko
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn, Road, Belfast BT9 7BL, UK
| | - Fabiana Volpe-Zanutto
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn, Road, Belfast BT9 7BL, UK
| | - Ke Peng
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn, Road, Belfast BT9 7BL, UK
| | - Alejandro J Paredes
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn, Road, Belfast BT9 7BL, UK
| | - Helen O McCarthy
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn, Road, Belfast BT9 7BL, UK
| | - Ryan F Donnelly
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn, Road, Belfast BT9 7BL, UK.
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7
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Pınar SG, Oktay AN, Karaküçük AE, Çelebi N. Formulation Strategies of Nanosuspensions for Various Administration Routes. Pharmaceutics 2023; 15:pharmaceutics15051520. [PMID: 37242763 DOI: 10.3390/pharmaceutics15051520] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 05/10/2023] [Accepted: 05/15/2023] [Indexed: 05/28/2023] Open
Abstract
Nanosuspensions (NSs), which are nanosized colloidal particle systems, have recently become one of the most interesting substances in nanopharmaceuticals. NSs have high commercial potential because they provide the enhanced solubility and dissolution of low-water-soluble drugs by means of their small particle sizes and large surface areas. In addition, they can alter the pharmacokinetics of the drug and, thus, improve its efficacy and safety. These advantages can be used to enhance the bioavailability of poorly soluble drugs in oral, dermal, parenteral, pulmonary, ocular, or nasal routes for systemic or local effects. Although NSs often consist mainly of pure drugs in aqueous media, they can also contain stabilizers, organic solvents, surfactants, co-surfactants, cryoprotectants, osmogents, and other components. The selection of stabilizer types, such as surfactants or/and polymers, and their ratio are the most critical factors in NS formulations. NSs can be prepared both with top-down methods (wet milling, dry milling, high-pressure homogenization, and co-grinding) and with bottom-up methods (anti-solvent precipitation, liquid emulsion, and sono-precipitation) by research laboratories and pharmaceutical professionals. Nowadays, techniques combining these two technologies are also frequently encountered. NSs can be presented to patients in liquid dosage forms, or post-production processes (freeze drying, spray drying, or spray freezing) can also be applied to transform the liquid state into the solid state for the preparation of different dosage forms such as powders, pellets, tablets, capsules, films, or gels. Thus, in the development of NS formulations, the components/amounts, preparation methods, process parameters/levels, administration routes, and dosage forms must be defined. Moreover, those factors that are the most effective for the intended use should be determined and optimized. This review discusses the effect of the formulation and process parameters on the properties of NSs and highlights the recent advances, novel strategies, and practical considerations relevant to the application of NSs to various administration routes.
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Affiliation(s)
- Sıla Gülbağ Pınar
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Süleyman Demirel University, Isparta 32260, Turkey
| | - Ayşe Nur Oktay
- Department of Pharmaceutical Technology, Gülhane Faculty of Pharmacy, University of Health Sciences, Ankara 06018, Turkey
| | - Alptuğ Eren Karaküçük
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Ankara Medipol University, Ankara 06050, Turkey
| | - Nevin Çelebi
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Başkent University, Ankara 06790, Turkey
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8
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Karakucuk A, Canpinar H, Celebi N. Ritonavir nanosuspensions prepared by microfluidization with enhanced solubility and desirable immunological properties. Pharm Dev Technol 2022; 27:1027-1037. [PMID: 36343117 DOI: 10.1080/10837450.2022.2145309] [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: 11/09/2022]
Abstract
The objective of this study was to develop ritonavir (RTV) nanosuspensions (NSs) by microfluidization method. Particle size (PS) measurements were performed by photon correlation spectroscopy. Amorphous properties of the particles were evaluated by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The dissolution studies were conducted in fed state simulated intestinal fluid (FeSSIF) medium. The flow cytometry was utilized to determine the lymphocyte sub-groups and immune response of NSs. RTV NSs were obtained with 400-500 nm PS. The crystal properties of RTV remain unchanged. The solubility of NS was enhanced five times. 57% and 18% of RTV were dissolved in FeSSIF medium for NSs and coarse powder. According to immunological studies, the prepared NSs did not significantly alter the ratio of CD4+/CD8+. Therefore, NSs may be a beneficial approach for the oral administration of RTV.
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Affiliation(s)
- Alptug Karakucuk
- Department of Pharmaceutical Technology, Ankara Medipol University Faculty of Pharmacy, Ankara, Turkey.,Department of Pharmaceutical Technology, Gazi University Faculty of Pharmacy, Ankara, Turkey
| | - Hande Canpinar
- Department of Basic Oncology, School of Medicine, Institute of Oncology, Hacettepe University, Ankara, Turkey
| | - Nevin Celebi
- Department of Pharmaceutical Technology, Gazi University Faculty of Pharmacy, Ankara, Turkey.,Department of Pharmaceutical Technology, Baskent University Faculty of Pharmacy, Ankara, Turkey
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Paredes da Rocha N, de Souza A, Nishitani Yukuyama M, Lopes Barreto T, de O Macedo L, Löbenberg R, Lima Barros de Araújo G, Ishida K, Araci Bou-Chacra N. Highly water-soluble dapsone nanocrystals: Towards innovative preparations for an undermined drug. Int J Pharm 2022; 630:122428. [PMID: 36436741 DOI: 10.1016/j.ijpharm.2022.122428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 11/18/2022] [Accepted: 11/19/2022] [Indexed: 11/26/2022]
Abstract
Dapsone (DAP)is a dual-function drug substance; however, its limited water solubility may impair its bioavailability. Drug nanocrystals are an alternative to overcome this limitation. Herein, a DAP nanosuspension was prepared using adesign space approach aiming to investigate the influence of raw material properties and process parameters on the critical quality attributes of the drugnanocrystals. Optimized nanocrystals with 206.3 ± 6.7 nm using povacoat™ as stabilizer were made. The nanoparticles were characterized by dynamic light scattering, laser diffraction, scanning electron microscopy, differential scanning calorimetry, X-ray powder diffraction, and saturation solubility. Compared to the raw material, the nanocrystals were 250-times smaller. Meanwhile, its crystalline state remained basically unchanged even after milling and drying. The nanosuspension successfully maintained its physical stability inlong-termandaccelerated stability studiesover, 4 and 3 months. Furthermore, toxicity studiesshowed low a toxicity at a20 mg/kg. As expected for nanocrystals, the size reduction improvedsaturation solubility3.78 times in water. An attempt to scale up from lab to pilot scale resulted nanocrystals of potential commercial quality. In conclusion, the present study describes the development of dapsone nanocrystals for treating infectious and inflammatory diseases. The nanocrystal formuation can be scaled up for commercial use.
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Affiliation(s)
| | - Aline de Souza
- Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | | | | | - Luiza de O Macedo
- Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Raimar Löbenberg
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, AB, Canada
| | | | - Kelly Ishida
- Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
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A comparative study on in vitro and in vivo characteristics of enzalutamide nanocrystals versus amorphous solid dispersions and a better prediction for bioavailability based on “spring-parachute” model. Int J Pharm 2022; 628:122333. [DOI: 10.1016/j.ijpharm.2022.122333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 09/29/2022] [Accepted: 10/18/2022] [Indexed: 11/22/2022]
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11
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Anjani QK, Sabri AHB, Domínguez-Robles J, Moreno-Castellanos N, Utomo E, Wardoyo LAH, Larrañeta E, Donnelly RF. Metronidazole nanosuspension loaded dissolving microarray patches: An engineered composite pharmaceutical system for the treatment of skin and soft tissue infection. BIOMATERIALS ADVANCES 2022; 140:213073. [PMID: 35964387 DOI: 10.1016/j.bioadv.2022.213073] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 07/23/2022] [Accepted: 08/03/2022] [Indexed: 06/15/2023]
Abstract
Bacteroides fragilis is one of the most common causative group of microorganisms that is associated with skin and soft tissue infections (SSTI). Metronidazole (MTZ) is the drug of choice used in the treatment of SSTI caused by the bacterium. However, owing to its physiochemical properties, MTZ have limited skin permeation, which render the drug unsuitable for the treatment of deep-rooted SSTIs. One strategy to overcome this limitation is to reformulate MTZ into nanosuspension which will then be loaded into dissolving microarray patches (MAPs) for the treatment of SSTIs caused by B. fragilis. Herein, we report for the first time on the preparation and optimisation of MAP loaded with MTZ nanosuspension (MTZ-NS). After screening a range of polymeric surfactants, we identified that Soluplus® resulted in the formation of MTZ-NS with the smallest particle size (115 nm) and a narrow PDI of 0.27. Next, the MTZ-NS was further optimised using a design of experiments (DoE) approach. The optimised MTZ-NS was then loaded into dissolving MAPs with varying MTZ-NS content. Furthermore, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) and cell proliferation assays along with LIVE/DEAD™ staining on the 3T3L1 cell line showed that the MTZ-NS loaded dissolving MAPs displayed minimal toxicity and acceptable biocompatibility. In vitro dermatokinetic studies showed that the MTZ-NS loaded MAPs were able to deliver the nitroimidazole antibiotic across all strata of the skin resulting in a delivery efficiency of 95 % after a 24-hour permeation study. Lastly, agar plating assay using bacterial cultures of B. fragilis demonstrated that MTZ-NS loaded MAP resulted in complete bacterial inhibition in the entire plate relative to the control group. Should this formulation be translated into clinical practice, this pharmaceutical approach may provide a minimally invasive strategy to treat SSTIs caused by B. fragilis.
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Affiliation(s)
- Qonita Kurnia Anjani
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK; Fakultas Farmasi, Universitas Megarezky, Jl. Antang Raya No. 43, Makassar 90234, Indonesia
| | - Akmal Hidayat Bin Sabri
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Juan Domínguez-Robles
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Natalia Moreno-Castellanos
- Basic Science Department, Faculty of Health, Universidad Industrial de Santander, Bucaramanga 680001, Colombia
| | - Emilia Utomo
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Luki Ahmadi Hari Wardoyo
- Fakultas Seni Rupa dan Desain, Institut Teknologi Bandung, Jl. Ganesa No.10, Bandung 40132, Indonesia
| | - Eneko Larrañeta
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Ryan F Donnelly
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK.
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12
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Optimization of Naringenin Nanoparticles to Improve the Antitussive Effects on Post-Infectious Cough. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27123736. [PMID: 35744861 PMCID: PMC9228777 DOI: 10.3390/molecules27123736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 06/02/2022] [Accepted: 06/08/2022] [Indexed: 11/24/2022]
Abstract
Naringenin (NRG) is a natural compound with several biological activities; however, its bioavailability is limited owing to poor aqueous solubility. In this study, NRG nanoparticles (NPs) were prepared using the wet media milling method. To obtain NRG NPs with a small particle size and high drug-loading content, the preparation conditions, including stirring time, temperature, stirring speed, and milling media amount, were optimized. The NRG (30 mg) and D-α-tocopherol polyethylene glycol succinate (10 mg) were wet-milled in deionized water (2 mL) with 10 g of zirconia beads via stirring at 50 °C for 2 h at a stirring speed of 300 rpm. As a result, the NRG NPs, with sheet-like morphology and a diameter of approximately 182.2 nm, were successfully prepared. The NRG NPs were stable in the gastrointestinal system and were released effectively after entering the blood circulation. In vivo experiments indicated that the NRG NPs have good antitussive effects. The cough inhibition rate after the administration of the NRG NPs was 66.7%, cough frequency was three times lower, and the potential period was 1.8 times longer than that in the blank model group. In addition, the enzyme biomarkers and histological analysis results revealed that the NRG NPs can effectively regulate the inflammatory and oxidative stress response. In conclusion, the NRG NPs exhibited good oral bioavailability and promoted antitussive and anti-inflammatory effects.
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Pınar SG, Canpınar H, Tan Ç, Çelebi N. A new nanosuspension prepared with wet milling method for oral delivery of highly variable drug Cyclosporine A: Development, optimization and in vivo evaluation. Eur J Pharm Sci 2022; 171:106123. [PMID: 35017012 DOI: 10.1016/j.ejps.2022.106123] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 12/30/2021] [Accepted: 01/03/2022] [Indexed: 11/03/2022]
Abstract
Cyclosporine A (CsA) is a cyclic polypeptide, that has been widely used for immunosuppression. This study aims to develop nanosuspension for oral administration of CsA using the wet milling (WM) method one of the top-down technologies. The WM method was optimized by studying the effects of critical process parameters for WM on the particle size (PS), particle size distribution (PDI), and zeta potential (ZP) of nanosuspensions using the Design of Experiment (DoE) approach. Nanosuspension was developed using hydroxypropyl methylcellulose (HPMC) and sodium dodecyl sulfate (SDS) and in vitro characterization studies were performed. In vitro dissolution and in vivo pharmacokinetic studies were conducted with biorelevant media (fasted and fed state simulated fluids) and fasted and fed states in rats, respectively. In vivo immunological studies were also performed. PS, PDI, and ZP values for nanosuspension were approximately 600 nm, 0.4, -25 mV, respectively. The solubility of CsA was increased by 4.5-folds by nanosuspensions. Dissolution studies showed that nanosuspension had higher dissolution than the commercial product in the FeSSIF medium. The pharmacokinetic study indicated that AUC0-24 values of CsA nanosuspension were to be 2.09 and 5.51-fold higher than coarse powder in fasted and fed conditions, respectively. Immunological studies were carried out after oral administration of nanosuspension for 21 days, the ratio of CD4+/CD8+ was found to be more acceptable than the commercial product. These results demonstrated that nanosuspension is a promising approach for increasing the bioavailability and avoiding the food effect on absorption of CsA which one of the highly variable drugs.
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Affiliation(s)
- Sıla Gülbağ Pınar
- Gazi University, Faculty of Pharmacy, Department of Pharmaceutical Technology, Etiler, 06330, Yenimahalle, Ankara, Turkey; Süleyman Demirel University, Faculty of Pharmacy, Department of Pharmaceutical Technology, 32260, Çünür, Isparta, Turkey
| | - Hande Canpınar
- Hacettepe University, Cancer Institute, Department of Basic Oncology, 06100, Sıhhiye, Ankara, Turkey
| | - Çağman Tan
- Hacettepe University, Faculty of Medicine, Institute of Child Health, 06100, Sıhhiye, Ankara, Turkey
| | - Nevin Çelebi
- Gazi University, Faculty of Pharmacy, Department of Pharmaceutical Technology, Etiler, 06330, Yenimahalle, Ankara, Turkey; Başkent University, Faculty of Pharmacy, Department of Pharmaceutical Technology, 06790, Etimesgut, Ankara, Turkey.
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14
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Gülbağ Pınar S, Pezik E, Mutlu Ağardan B, Çelebi N. Development of cyclosporine A nanosuspension: cytotoxicity and permeability on Caco-2 cell lines. Pharm Dev Technol 2021; 27:52-62. [PMID: 34931593 DOI: 10.1080/10837450.2021.2020817] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Cyclosporine A is a calcineurin inhibitor and is usually used as an immunosuppressant medication. The main purpose of this study is to develop nanosuspension of polypeptide cyclosporine A by using the wet milling method for oral administration. Cell culture studies were also performed with human intestinal Caco-2 cell lines. Hydroxypropyl methylcellulose and sodium dodecyl sulfate were used as stabilizers in nanosuspension. In vitro characterization studies such as Fourier-transform infrared analysis and morphological imaging with scanning electron microscopy have been carried out with obtained cyclosporine A nanosuspension. The particle size, particle size distribution, and zeta potential values of the nanosuspension were measured approximately 400 nm, 0.4, and -25 mV, respectively. The solubility of cyclosporine A was increased 4.5 times in nanosuspension compared to the coarse cyclosporine A powder. As a result of cytotoxicity studies conducted with different concentrations, it was decided to conduct permeability studies at a dose equivalent to 150 µg/mL cyclosporine A. Permeation studies have shown that the nanosuspension increases cyclosporine A transport by 5 and 1.5 times, respectively, compared to coarse powder and commercial product.
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Affiliation(s)
- Sıla Gülbağ Pınar
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Gazi University, Ankara, Turkey.,Department of Pharmaceutical Technology, Faculty of Pharmacy, Süleyman Demirel University, Isparta, Turkey
| | - Esra Pezik
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
| | - Başaran Mutlu Ağardan
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Gazi University, Ankara, Turkey
| | - Nevin Çelebi
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Gazi University, Ankara, Turkey.,Department of Pharmaceutical Technology, Faculty of Pharmacy, Başkent University, Ankara, Turkey
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15
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Parmar K, Oza K. Increase in Dissolution Rate of Zotepine via Nanomilling Process - Impact of Dried Nanocrystalline Suspensions on Bioavailability. AAPS PharmSciTech 2021; 23:20. [PMID: 34907489 DOI: 10.1208/s12249-021-02172-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 10/28/2021] [Indexed: 11/30/2022] Open
Abstract
Zotepine is an atypical antipsychotic drug used in the treatment of schizophrenia. However, its poor dissolution properties limit its therapeutic efficacy. In this investigation, a series of nanosuspension-containing zotepine were prepared employing media milling method with an aim to improve its dissolution properties and oral bioavailability. Briefly, Box-Behnken design was applied to investigate the influence of various independent variables such as X1- amount of stabilizer, X2- amount of milling agent, and X3- milling time on the performance of the formulation. Dissolution studies revealed enhancement of dissolution rate as compared to pure drug. Solid state characterization (DSC, PXRD, and SEM) studies demonstrated no polymorphic changes in drug after lyophilization of media-milled nanosuspension. In vivo pharmacokinetic studies of lyophilized nanosuspension was carried out in rat and the results exhibited significant improvement in Cmax and AUC0-t, about 450.0 and 287.45%, respectively, suggesting amelioration in oral bioavailability by 2.87-fold higher as compared to pure drug. Accelerated stability studies of the optimized lyophilized formulation at 40°C and 75% RH suggested stability of the nanocrystals for at least a 6-month period. The obtained nanocrystals successfully showed dissolution enhancement and improved oral bioavailability of poorly water-soluble drug, zotepine.
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Tailoring of Antihypertensive Drug-Loaded Nanoparticles: In Vitro, Toxicity, and Bioavailability Assessment. BIONANOSCIENCE 2021. [DOI: 10.1007/s12668-021-00910-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Tian J, Qiao F, Hou Y, Tian B, Yang J. Exploring space-energy matching via quantum-molecular mechanics modeling and breakage dynamics-energy dissipation via microhydrodynamic modeling to improve the screening efficiency of nanosuspension prepared by wet media milling. Expert Opin Drug Deliv 2021; 18:1643-1657. [PMID: 34382869 DOI: 10.1080/17425247.2021.1967928] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Introduction: The preparation of nanosuspensions by wet media milling is a promising technique that increases the bioavailability of insoluble drugs. The nanosuspension is thermodynamically unstable, where its stability might be influenced by the interaction energy between the stabilizers and the drugs after milling at a specific collision energy. However, it is difficult to screen the stabilizers and the parameters of milling accurately and quickly by using traditional analysis methods. Quantum-molecular mechanics and microhydrodynamic modeling can be applied to improve screening efficiency.Areas covered: Quantum-molecular mechanics model, which includes molecular docking, molecular dynamics simulations, and data on binding energy, provides insights into screening stabilizers based on their molecular behavior at the atomic level. The microhydrodynamic model explores the mechanical processes and energy dissipation in nanomilling, and even combines information on the mechanical modulus and an energy vector diagram for the milling parameters screening of drug crystals.Expert opinion: These modeling methods improve screening efficiency and support screening theories based on thermodynamics and physical dynamics. However, how to reasonably combine different modeling methods with their theoretical characteristics and further multidimensional and cross-scale simulations of nanosuspension formation remain challenges.
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Affiliation(s)
- Jing Tian
- Department of Pharmaceutics, School of Pharmacy, Ningxia Medical University, Yinchuan, P R China
| | - Fangxia Qiao
- Department of Pharmaceutics, School of Pharmacy, Ningxia Medical University, Yinchuan, P R China
| | - Yanhui Hou
- Department of Pharmaceutics, School of Pharmacy, Ningxia Medical University, Yinchuan, P R China
| | - Bin Tian
- Department of Pharmaceutical Sciences, School of Food and Biological Engineering, Shanxi University of Science and Technology, Weiyang University Park, Xi'an, P R China
| | - Jianhong Yang
- Department of Pharmaceutics, School of Pharmacy, Ningxia Medical University, Yinchuan, P R China
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Oktay AN, Ilbasmis-Tamer S, Uludag O, Celebi N. Enhanced Dermal Delivery of Flurbiprofen Nanosuspension Based Gel: Development and Ex Vivo Permeation, Pharmacokinetic Evaluations. Pharm Res 2021; 38:991-1009. [PMID: 34086139 DOI: 10.1007/s11095-021-03060-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Accepted: 05/11/2021] [Indexed: 10/21/2022]
Abstract
PURPOSE The objective of this study was to optimize the Flurbiprofen (FB) nanosuspension (NS) based gel and to investigate the in vitro release, ex vivo permeation, the plasma concentration-time profile and pharmacokinetic parameters. METHODS FB-NSs were developed using the wet milling process with the Design of Experiment (DoE) approach. The optimum FB-NS was characterized on the basis of SEM, DSC, XRPD, solubility and permeation studies. The dermal gel was prepared by incorporating FB-NS into HPMC gel. Then the in-vitro release, ex vivo permeation studies were performed, and pharmacokinetic studies were evaluated on rats. RESULTS The particle size, polydispersity index and zeta potential values of optimum NS were determined as 237.7 ± 6.8 nm, 0.133 ± 0.030 and - 30.4 ± 0.7 mV, respectively. By means of the surfactant content and nanosized particles of the nanosuspension, the solubility of FB was increased about 7-fold. The percentage permeated amount of FB from FB-NS gel (8.40%) was also found to be higher than the physical mixture (5.25%) and coarse suspension (reference) (2.08%) gels. The pharmacokinetic studies showed that the Cmax of FB-NS gel was 2.5 times higher than the reference gel, while AUC0-24 was 2.96 times higher. CONCLUSION FB-NSs were successfully prepared with a wet milling method and optimized with the DoE approach. The optimized FB nanosuspension gel provided better permeation and pharmacokinetic performance compared to FB coarse suspension gel.
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Affiliation(s)
- Ayse Nur Oktay
- Department of Pharmaceutical Technology, Gazi University-Faculty of Pharmacy, Ankara, Turkey.,Department of Pharmaceutical Technology, University of Health Sciences- Gulhane Faculty of Pharmacy, Ankara, Turkey
| | - Sibel Ilbasmis-Tamer
- Department of Pharmaceutical Technology, Gazi University-Faculty of Pharmacy, Ankara, Turkey
| | - Orhan Uludag
- Department of Pharmacology, Gazi University-Faculty of Pharmacy, Ankara, Turkey
| | - Nevin Celebi
- Department of Pharmaceutical Technology, Gazi University-Faculty of Pharmacy, Ankara, Turkey. .,Department of Pharmaceutical Technology, Başkent University-Faculty of Pharmacy, Ankara, Turkey.
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Karaküçük A, Taşhan E, Öztürk N, Çelebi N. In Vitro Caco-2 Cell Permeability Studies of Ziprasidone Hydrochloride Monohydrate Nanocrystals. Turk J Pharm Sci 2021; 18:223-227. [PMID: 33902264 DOI: 10.4274/tjps.galenos.2020.67366] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Objectives The current study focused on the evaluation of the cytotoxic effect and permeability of ziprasidone hydrochloride monohydrate (ZHM) nanocrystals on Caco-2 cells. Materials and Methods ZHM nanocrystals were prepared by the microfluidization method in the presence of polyvinylpyrrolidone as a stabilizer. Particle size (PS), particle size distribution (PDI), and zeta potential (ZP) values were measured in characterization studies. In vitro cytotoxic effects of ZHM nanocrystals were investigated using the 3-(4,5-dimetylthiazol-2-yl)-2,5-diphenyltetrazolium bromide test. Caco-2 transport studies were conducted with formulations of ZHM coarse powder and nanocrystals. Results Nanocrystals were obtained with 400-600 nm PS, 0.1-0.4 PDI, and >20 mV ZP values. The cell viability remained 100% for all sample groups. The permeability value of ZHM nanocrystals through Caco-2 cells increased 2.3-fold in comparison with ZHM coarse powder. Cumulative drug transport also increased at the end of the sampling period. Conclusion Nanocrystal technology helps to increase the permeability of drug particles by increasing the saturation solubility.
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Affiliation(s)
- Alptuğ Karaküçük
- Gazi University Faculty of Pharmacy, Department of Pharmaceutical Technology, Ankara, Turkey,Ankara Medipol University Faculty of Pharmacy, Department of Pharmaceutical Technology, Ankara, Turkey
| | - Emine Taşhan
- Gazi University Faculty of Pharmacy, Department of Pharmaceutical Technology, Ankara, Turkey,Zoleant Pharmaceuticals International, İstanbul, Turkey
| | - Naile Öztürk
- İnönü University Faculty of Pharmacy, Department of Pharmaceutical Technology, Malatya, Turkey
| | - Nevin Çelebi
- Gazi University Faculty of Pharmacy, Department of Pharmaceutical Technology, Ankara, Turkey,Başkent University Faculty of Pharmacy, Department of Pharmaceutical Technology, Ankara, Turkey
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20
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Karakucuk A, Tort S, Han S, Oktay AN, Celebi N. Etodolac nanosuspension based gel for enhanced dermal delivery: in vitro and in vivo evaluation. J Microencapsul 2021; 38:218-232. [PMID: 33752553 DOI: 10.1080/02652048.2021.1895344] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
AIM The objective of this study was to develop dermal nanosuspension (NS) based gel formulation of etodolac (ETD). METHODS Etodolac nanosuspension (ETD-NS) was prepared by wet milling method and dispersed in hydroxypropyl methylcellulose (NS-HPMC) or hydroxyethyl cellulose (NS-HEC) gels. Rheologic and mechanical properties were investigated. In vitro and ex vivo permeability studies were performed. Topical anti-inflammatory and analgesic activity were evaluated in regard to carrageenan-induced inflammatory paw oedema and radiant heat tail-flick method, respectively. RESULTS The ETD-NS with approximately 190 nm particle size (PS), 0.16 polydispersity index (PDI), and -15 mV zeta potential (ZP) values were obtained. The work of bioadhesion values of NS-HEC and NS-HPMC gels were 0.229 mJ/cm2 for both gels. Dermal permeation of ETD from NS-HEC gel (7.18%) was found significantly higher than the NS-HPMC gel (4.56%). Enhanced anti-inflammatory and analgesic activity of NS-HEC gels were observed in comparison with micronised ETD. CONCLUSIONS ETD-NS based gel formulation is promising for topical delivery of ETD.
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Affiliation(s)
- Alptug Karakucuk
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Gazi University, Ankara, Turkey
| | - Serdar Tort
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Gazi University, Ankara, Turkey
| | - Sevtap Han
- Department of Pharmacology, Faculty of Pharmacy, Gazi University, Ankara, Turkey
| | - Ayse Nur Oktay
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Gazi University, Ankara, Turkey.,Department of Pharmaceutical Technology, Gulhane Faculty of Pharmacy, University of Health Sciences, Ankara, Turkey
| | - Nevin Celebi
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Gazi University, Ankara, Turkey.,Department of Pharmaceutical Technology, Faculty of Pharmacy, Baskent University, Ankara, Turkey
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21
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Bilgili E, Guner G. Mechanistic Modeling of Wet Stirred Media Milling for Production of Drug Nanosuspensions. AAPS PharmSciTech 2020; 22:2. [PMID: 33222036 DOI: 10.1208/s12249-020-01876-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 11/05/2020] [Indexed: 12/22/2022] Open
Abstract
Drug nanocrystals have been used for a wide range of drug delivery platforms in the pharmaceutical industry, especially for bioavailability enhancement of poorly water-soluble drugs. Wet stirred media milling (WSMM) is the most widely used process for producing dense, stable suspensions of drug nanoparticles, also referred to as nanosuspensions. Despite a plethora of review papers on the production and applications of drug nanosuspensions, modeling of WSMM has not been thoroughly covered in any review paper before. The aim of this review paper is to briefly expose the pharmaceutical scientists and engineers to various modeling approaches, mostly mechanistic, including computational fluid dynamics (CFD), discrete element method (DEM), population balance modeling (PBM), coupled methods, the stress intensity-number model (SI-SN model), and the microhydrodynamic (MHD) model with a main focus on the MHD model for studying the WSMM process. A total of 71 studies, 30 on drugs and 41 on other materials, were reviewed. Analysis of the pharmaceutics literature reveals that WSMM modeling is largely based on empirical, statistically based modeling approaches, and mechanistic modeling could help pharmaceutical engineers develop a fundamental process understanding. After a review of the salient features and various pros-cons of each modeling approach, recent advances in microhydrodynamic modeling and process insights gained therefrom were highlighted. The SI-SN and MHD models were analyzed and critiqued objectively. Finally, the review points out potential research directions such as more mechanistic and accurate CFD-DEM-PBM simulations and the coupling of the MHD-PBM models with the CFD.
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Karakucuk A, Tort S. Preparation, characterization and antimicrobial activity evaluation of electrospun PCL nanofiber composites of resveratrol nanocrystals. Pharm Dev Technol 2020; 25:1216-1225. [DOI: 10.1080/10837450.2020.1805761] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Alptug Karakucuk
- Faculty of Pharmacy, Department of Pharmaceutical Technology, Gazi University, Ankara, Turkey
- Fiber Farma Drug Cosmetics Medical Devices and Consulting, Gazi Technopark, Ankara, Turkey
| | - Serdar Tort
- Faculty of Pharmacy, Department of Pharmaceutical Technology, Gazi University, Ankara, Turkey
- Fiber Farma Drug Cosmetics Medical Devices and Consulting, Gazi Technopark, Ankara, Turkey
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