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Toukabri I, Bahri S, Sfar S, Lassoued MA. Impact of crystal polymorphism of rifaximin on dissolution behavior. Heliyon 2024; 10:e27131. [PMID: 38449665 PMCID: PMC10915558 DOI: 10.1016/j.heliyon.2024.e27131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 02/23/2024] [Accepted: 02/23/2024] [Indexed: 03/08/2024] Open
Abstract
Introduction Rifaximin is an intestinal antiseptic which has five (pseudo) polymorphs α, β, γ, δ and ε. These last (pseudo)polymorphs have different physicochemical properties. The objective of the study is to assess the impact of rifaximin polymorphism on its dissolution rate which could affect its bioavailability. Material and methods The analytical validation of dissolution assay method by UV-Visible spectrophotometry was carried out according to ICH Q2. The physicochemical characterization (solubility test, FTIR, DSC, XRD) was carried out on four active pharmaceutical ingredient (MP1, MP2, MP3, MP4). MP1 and MP2 were used by the manufacturer of generic brand 1 (G1) and MP3 and MP4 were used by the manufacturer of generic brand 2 (G2). The comparative in-vitro dissolution study was carried out on the leader brand (P), G1 and G2. Results The four MPs were analyzed by XRD. The results of analysis showed that MP1 and MP4 were a mixture of α form and amorphous form. MP2 had an amorphous form and MP3 had a crystalline form β. The spectra of FTIR showed that the four MP had characteristics bands of rifaximin in the domain 4000-400 cm-1. The differences between the spectra of the four MPs were observed among the amorphous form (MP2), around the region 1800 to 1820 cm-1 which is attributed to the vibration of the CO group. An additional difference observed among the amorphous form (MP2) is around the region 1400 cm-1 which is attributed to the banding OH. The thermograms of MP1, MP2 and MP4 showed endothermic peaks which are probably attributed to the departure of water which indicate that MP1, MP2 and MP4 are pseudopolymoph (hydrate). For the four MPs, probably the melting points are interrupted by the phenomenon of phase transformations (Crystallization) which are reflected by exothermic peaks around 200°C-250 °C.Our results showed that the crystalline polymorphism of rifaximin influences its solubility. According to the results of the solubility test, the β crystal form of rifaximin (MP3) had the lowest solubility (3.47 μg/ml). MP2 had the highest solubility (8.35 μg/ml) and MP1 and MP4 had intermediate solubilities (5.47 μg/ml and 6.74 μg/ml). Comparative in vitro dissolution results showed that the dissolution profile of P was not similar to that of G1 and G2 (% dissolution (P)30min = 60%; % dissolution (G1) 30 min = 100% and % dissolution (G2) 30 min = 115%; f1(P versus G1) = 44; f1(P versus G2) = 61) in M1, while G1 and G2 had comparatively similar dissolution profiles (% dissolution (G1) 30 min = 100%; % dissolution (G1) 30 min = 110%; f1 (G1 versus G2) = 14) in M1. Conclusion This study highlighted the impact of rifaximin polymorphism on its physico-chemical properties (crystal structure, thermal behavior, solubility) and on its dissolution behavior which could affect the rifaximin bioavailability.
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Affiliation(s)
- Imen Toukabri
- Laboratory of Chemical, Galenic and Pharmacological Development of Medicines (LR12ES09), Faculty of Pharmacy of Monastir, University of Monastir, Monastir, Tunisia
| | - Senda Bahri
- Laboratory of Chemical, Galenic and Pharmacological Development of Medicines (LR12ES09), Faculty of Pharmacy of Monastir, University of Monastir, Monastir, Tunisia
| | - Souad Sfar
- Laboratory of Chemical, Galenic and Pharmacological Development of Medicines (LR12ES09), Faculty of Pharmacy of Monastir, University of Monastir, Monastir, Tunisia
| | - Mohamed Ali Lassoued
- Laboratory of Chemical, Galenic and Pharmacological Development of Medicines (LR12ES09), Faculty of Pharmacy of Monastir, University of Monastir, Monastir, Tunisia
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Bouhlel Chatti I, Krichen Y, Horchani M, Maatouk M, Trabelsi A, Lassoued MA, Ben Jannet H, Ghédira LC. Anthraquinones from Rhamnus alaternus L.: A Phytocosmetic Ingredient with Photoprotective and Antimelanogenesis Properties. Chem Biodivers 2024; 21:e202300876. [PMID: 38037520 DOI: 10.1002/cbdv.202300876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 11/29/2023] [Accepted: 11/30/2023] [Indexed: 12/02/2023]
Abstract
The purpose of the present work was to develop a phytocosmetic sunscreen emulsion with antioxidant activity and an anti-melanogenic effect, containing an anthraquinone-enriched extract of Rhamnus alaternus (A.E.). Our findings demonstrated that A.E. decreased the levels of reactive oxygen species, DNA damage, and malondialdehyde induced by UVA in human keratinocytes and melanocytes. Furthermore, the calculated SPF value in vitro of the cream containing A.E. was 14.26±0.152. Later, it was shown that A.E. extract had an inhibitory effect on the amount of melanin. This extract could also reduce B16F10 intracellular tyrosinase activity. Besides, docking studies were carried out to provide a logical justification for the anti-tyrosinase potential. The findings showed that, A.E. may provide protection against UVA-induced oxidative stress and could be thought of as a viable treatment for hyperpigmentation disorders.
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Affiliation(s)
- Ines Bouhlel Chatti
- Unity of Bioactive Natural Substances and Biotechnology, Faculty of Dental Medicine, University of Monastir, Rue Avicenne, 5000, Monastir, Tunisia
- Department of Biology and Geology, Higher Institute of Applied Science and Technology of Gabe s, University of Gabes, Gabes, Tunisia
| | - Yosr Krichen
- Unity of Bioactive Natural Substances and Biotechnology, Faculty of Dental Medicine, University of Monastir, Rue Avicenne, 5000, Monastir, Tunisia
| | - Mabrouk Horchani
- Laboratory of Heterocyclic Chemistry, Natural Products and Reactivity (LR11ES39), Team: Medicinal Chemistry and Natural Products, Faculty of Science of Monastir, University of Monastir, Avenue of Environment, 5019, Monastir, Tunisia
| | - Mouna Maatouk
- Unity of Bioactive Natural Substances and Biotechnology, Faculty of Dental Medicine, University of Monastir, Rue Avicenne, 5000, Monastir, Tunisia
| | - Amine Trabelsi
- Unity of Bioactive Natural Substances and Biotechnology, Faculty of Dental Medicine, University of Monastir, Rue Avicenne, 5000, Monastir, Tunisia
| | - Mohamed Ali Lassoued
- Laboratory of Chemical, Galenic and Pharmacological Development of Drugs, Faculty of Pharmacy, University of Monastir, Rue Avicenne, Monastir, Tunisia
| | - Hichem Ben Jannet
- Laboratory of Heterocyclic Chemistry, Natural Products and Reactivity (LR11ES39), Team: Medicinal Chemistry and Natural Products, Faculty of Science of Monastir, University of Monastir, Avenue of Environment, 5019, Monastir, Tunisia
| | - Leila Chekir Ghédira
- Unity of Bioactive Natural Substances and Biotechnology, Faculty of Dental Medicine, University of Monastir, Rue Avicenne, 5000, Monastir, Tunisia
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Merghni A, Belmamoun AR, Urcan AC, Bobiş O, Lassoued MA. 1,8-Cineol (Eucalyptol) Disrupts Membrane Integrity and Induces Oxidative Stress in Methicillin-Resistant Staphylococcus aureus. Antioxidants (Basel) 2023; 12:1388. [PMID: 37507929 PMCID: PMC10376866 DOI: 10.3390/antiox12071388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 07/03/2023] [Accepted: 07/03/2023] [Indexed: 07/30/2023] Open
Abstract
Due to the increased emergence of drug-resistant bacteria, the declining efficiency of traditional antimicrobials has generated severe concerns in recent years. Subsequently, more interest in other antimicrobial agents from natural resources draws more attention as an alternative to conventional medications. This study investigated the bactericidal mechanism of monoterpene 1,8-cineol (eucalyptol), a major compound of various essential oils, against methicillin-resistant Staphylococcus aureus (MRSA). The antibacterial activity of 1,8-cineol was assessed by an MTT assay against clinical and reference MRSA strains. A cell membrane integrity test, followed by zeta potential (ZP) measurements, was performed to evaluate the disruption of the bacterial membrane integrity. Additionally, the cytotoxic effect of this molecule on MRSA bacteria was investigated by monitoring reactive oxygen species (ROS) generation, lipid peroxidation (MDA), and antioxidant enzyme activities (CAT and SOD). Regarding the anti-staphylococcal effect, the obtained results revealed the antibacterial efficacy of 1,8-cineol wherein the minimum inhibitory concentrations were equal to 7.23 mg/mL. Furthermore, it enhanced membrane permeability, with a 5.36-fold increase in nucleic acid and protein leakage as compared with untreated strains, along with the alteration of surface charge (ZP) in MRSA cells. The tested compound caused an increase in ROS generation reaching 17,462 FU and MDA production, reaching 9.56 μM/mg protein, in treated bacterial cells, along with a decrease in oxidative stress enzymes activities. Our findings suggest that 1,8-cineol has the ability to damage the membrane integrity and induce ROS-mediated oxidative stress in MRSA cells, leading to its antagonistic effect against this pathogen and consequently aiding in the reversal of antibiotic resistance.
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Affiliation(s)
- Abderrahmen Merghni
- Laboratory of Antimicrobial Resistance LR99ES09, Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis 1007, Tunisia
| | - Ahmed Reda Belmamoun
- Department of Agricultural Sciences, Faculty of Nature and Life Sciences, Djillali Liabes University, Sidi-Bel-Abbes 22000, Algeria
| | - Adriana Cristina Urcan
- Department of Microbiology and Immunology, Faculty of Animal Science and Biotechnology, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania
| | - Otilia Bobiş
- Department of Beekeeping and Sericulture, Faculty of Animal Science and Biotechnology, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania
| | - Mohamed Ali Lassoued
- Laboratory of Pharmaceutical, Chemical and Pharmacological Drug Development LR12ES09, Faculty of Phamacy, University of Monastir, Monastir 5000, Tunisia
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Chhoud R, Said Bagga M, Ali Lassoued M, Jlizi S, Nabili A, Sfar S, Ben Jannet H, Majdoub H. Chemical Profile of the Pits Oil from the Tunisian 'Alig' Cultivar of Phoenix dactylifera L.: In Vivo Wound Healing Potential Evaluation of a Cream Formulated from the Extracted Oil and Insights from Molecular Docking and SAR Analysis. Chem Biodivers 2023; 20:e202200533. [PMID: 36325999 DOI: 10.1002/cbdv.202200533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 11/02/2022] [Accepted: 11/02/2022] [Indexed: 11/05/2022]
Abstract
Since ancient times the oil from date palm pits (Phoenix dactylifera L.) has been used to heal wounds. In order to prove this traditional usage of the pits, this oil was extracted from the pits of the Tunisian cultivar 'Alig' and its physico-chemical properties and the chemical composition were evaluated. The fatty acid profile, evidenced by GC, allowed to classify this oil as an oleic-myristic acid oil with a clear abundance of oleic acid (53.66 %). 1 H and 13 C-NMR as well as FT-IR analyses confirmed the presence of fatty acids in triglyceride forms. Furthermore, in vivo wound healing activity of a cream formulated from the extracted oil was performed, for the first time, using a rat model and was compared to placebo cream and a commercial formulation, MEBO®. This study showed that the test cream promoted the healing of pressure ulcers better than the placebo cream and the MEBO® ointment. The results showed that this vegetable oil is able to improve the healing of infected wounds in rats, thus supporting its traditional use. The contribution of the main oleic, linoleic and myristic acids that can be derived from enzymatic hydrolysis to the healing activity of the whole pits oil was predicted by in silico study and the calculated pharmacokinetics parameters.
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Affiliation(s)
- Rihab Chhoud
- University of Monastir, Faculty of Sciences of Monastir, Laboratory of Interfaces and Advanced Materials (LIMA), Bd. of the Environment, 5019, Monastir, Tunisia
| | - Mohamed Said Bagga
- Laboratory of Pharmaceutical, Chemical and Pharmacological Drug Development LR12ES09, Faculty of Pharmacy, University of Monastir, Monastir, 5000, Tunisia
| | - Mohamed Ali Lassoued
- Laboratory of Pharmaceutical, Chemical and Pharmacological Drug Development LR12ES09, Faculty of Pharmacy, University of Monastir, Monastir, 5000, Tunisia
| | - Salma Jlizi
- University of Monastir, Faculty of Sciences of Monastir, Laboratory of Heterocyclic Chemistry, Natural Products and Reactivity (LR11ES39), Team: Medicinal Chemistry and Natural Products, Bd. of the Environment, 5019, Monastir, Tunisia
| | - Abdelkader Nabili
- University of Monastir, Faculty of Sciences of Monastir, Laboratory of Interfaces and Advanced Materials (LIMA), Bd. of the Environment, 5019, Monastir, Tunisia
| | - Souad Sfar
- Laboratory of Pharmaceutical, Chemical and Pharmacological Drug Development LR12ES09, Faculty of Pharmacy, University of Monastir, Monastir, 5000, Tunisia
| | - Hichem Ben Jannet
- University of Monastir, Faculty of Sciences of Monastir, Laboratory of Heterocyclic Chemistry, Natural Products and Reactivity (LR11ES39), Team: Medicinal Chemistry and Natural Products, Bd. of the Environment, 5019, Monastir, Tunisia
| | - Hatem Majdoub
- University of Monastir, Faculty of Sciences of Monastir, Laboratory of Interfaces and Advanced Materials (LIMA), Bd. of the Environment, 5019, Monastir, Tunisia
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Bhouri N, Debbabi F, Lassoued MA, Abderrahmen M, Ben Abdessalem S. Wound infections preventing using antibacterial chitosan/Laurus nobilis essential oil emulsion on PET braided surgical sutures. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Lassoued MA, Ben Fatma NEH, Haj Romdhane M, Faidi A, Majdoub H, Sfar S. Photoprotective potential of a Tunisian halophyte plant Carpobrotus edulis L. Eur J Integr Med 2021. [DOI: 10.1016/j.eujim.2021.101286] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Ayed OBH, Lassoued MA, Bahloul B, Sfar S. Self-emulsifying Drug Delivery System for Improved Dissolution and Oral Absorption of Quetiapine Fumarate: Investigation of Drug Release Mechanism and In-vitro Intestinal Permeability. Iran J Pharm Res 2021; 20:381-398. [PMID: 34903996 PMCID: PMC8653647 DOI: 10.22037/ijpr.2021.114785.15032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
In this study, we focused on quetiapine fumarate (QTF), a class II BCS drug. QTF is an atypical antipsychotic used in the treatment of schizophrenia and bipolar disorders. Our objective was to develop a new QTF-loaded self-emulsifying drug delivery system (SEDDS) to improve the dissolution and absorption of the drug. An experimental design approach was used to develop and optimize QTF-loaded SEDDS. The optimized formulation was characterized for droplets size, zeta potential, PDI, and stability. It was then evaluated using an in-vitro combined test for dissolution and Everted gut sac technique. Mathematical modeling and Transmission electron microscopy (TEM) were used to elucidate the mechanism of release. The optimal formulation was type IIIB SEDDS, constituted of 9.1% of oleic acid, 51.6% of Tween®20, and 39.3% of Transcutol® P. It showed a droplets size of 144.8 ± 4.9nm with an acceptable PDI and zeta potential. For in-vitro evaluation tests, we noticed an enhancement of the dissolution rate of the optimal QTF-loaded SEDDS compared to the free drug (98.82 ± 1.24% for SEDDS after 30 min compared to 85.65 ± 2.5% for the pure drug). The release of QTF fitted with the Hopfenberg model indicating the drug was released by water diffusion and erosion mechanism. This result was confirmed by TEM images which showed a smaller droplet size after release. We also found an amelioration of the permeability of QTF of 1.69-fold from SEDDS compared to the free drug. Hence, the SEDDS formulation represented a new way to improve the dissolution and absorption of QTF.
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Rasoanirina BNV, Lassoued MA, Miladi K, Razafindrakoto Z, Chaâbane-Banaoues R, Ramanitrahasimbola D, Cornet M, Sfar S. Self-nanoemulsifying drug delivery system to improve transcorneal permeability of voriconazole: in-vivo studies. J Pharm Pharmacol 2020; 72:889-896. [PMID: 32294801 DOI: 10.1111/jphp.13265] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 03/08/2020] [Indexed: 11/30/2022]
Abstract
OBJECTIVE This study investigates the effectiveness of self-nanoemulsifying drug delivery system (SNEDDS) in improving voriconazole transcorneal permeability. METHODS Voriconazole-SNEDDS was prepared with isopropyl myristate, PEG 400, Tween 80® and Span 80® and was subjected for physicochemical characterization after reconstitution with NaCl 0.9% (1/9; v/v). In-vitro antifungal activity was assessed and compared with the marketed formulation. In-vivo studies, namely ocular irritation test via modified Draize test and pharmacokinetic study, were investigated using rabbit as animal model. KEY FINDINGS Voriconazole-SNEDDS presented a droplet size of 21.353 ± 0.065 nm, a polydispersity index of 0.123 ± 0.003, a pH of 7.205 ± 0.006 and an osmolarity of 342.667 ± 2.517 mOsmol/l after reconstitution with NaCl 0.9%. Voriconazole-SNEDDS minimum inhibitory concentration (MIC90 ) was similar to the one of marketed formulation for Candida species while it was significantly lower (P < 0.001) for Aspergillus fumigatus. Draize test revealed that Voriconazole-SNEDDS was safe for ocular administration. Voriconazole maximum concentration (5.577 ± 0.852 µg/ml) from SNEDDS was higher than marketed formulation (Cmax = 4.307 ± 0.623 µg/ml), and the Tmax was delayed to 2 h. The area under the concentration-time curve value of Voriconazole-SNEDDS was improved by 2.419-fold. CONCLUSION Our results suggest that SNEDDS is a promising carrier for voriconazole ocular delivery and this encourages further clinical studies.
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Affiliation(s)
| | - Mohamed Ali Lassoued
- Laboratory of Pharmaceutical, Chemical and Pharmacological Drug Development LR12ES09, Faculty of Pharmacy, University of Monastir, Monastir, Tunisia
| | - Karim Miladi
- Laboratory of Pharmaceutical, Chemical and Pharmacological Drug Development LR12ES09, Faculty of Pharmacy, University of Monastir, Monastir, Tunisia
| | - Zoarilala Razafindrakoto
- Laboratory of Applied Pharmacognosy, Institut Malgache de Recherches Appliquées, Fondation Albert et Suzanne RAKOTO-RATSIMAMANGA, Antananarivo, Madagascar
| | - Raja Chaâbane-Banaoues
- Laboratory of Medical and Molecular Parasitology-Mycology, LR12ES08 (LP3M), Faculty of Pharmacy, University of Monastir, Monastir, Tunisia
| | - David Ramanitrahasimbola
- Laboratory of Applied Pharmacognosy, Institut Malgache de Recherches Appliquées, Fondation Albert et Suzanne RAKOTO-RATSIMAMANGA, Antananarivo, Madagascar.,Pharmacy Department, Faculty of Medicine, University of Antananarivo, Antananarivo, Madagascar
| | - Muriel Cornet
- CNRS, CHU Grenoble Alpes, Grenoble INP, TIMC-IMAG, University of Grenoble Alpes, Grenoble, France
| | - Souad Sfar
- Laboratory of Pharmaceutical, Chemical and Pharmacological Drug Development LR12ES09, Faculty of Pharmacy, University of Monastir, Monastir, Tunisia
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Rasoanirina BNV, Lassoued MA, Kamoun A, Bahloul B, Miladi K, Sfar S. Voriconazole-loaded self-nanoemulsifying drug delivery system (SNEDDS) to improve transcorneal permeability. Pharm Dev Technol 2020; 25:694-703. [PMID: 32064993 DOI: 10.1080/10837450.2020.1731532] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The aim of this study was to develop self- nanoemulsifying drug delivery system (SNEDDS) to improve the transcorneal permeability of voriconazole. A 'mixture design around a reference mixture' approach was applied. This latter included four components, namely, isopropyl myristate, PEG 400, Tween® 80 and Span® 80 as oil, co-solvent, surfactant and co-surfactant, respectively. Droplet size was selected as response. The effect of mixture components on droplet size was analyzed by means of response trace method. Optimal formulation was subjected to stability studies and characterized for droplet size, polydispersity index (PDI), pH, osmolarity, viscosity and percentage of transmittance. Ex-vivo transcorneal permeation of the optimal and the marketed formulations was carried out on excised bovine cornea using Franz cell diffusion apparatus. Optimal voriconazole loaded-SNEDDS showed moderate emulsification efficiency and was characterized by a droplet size of 21.447 ± 0.081 nm, a PDI of 0.156 ± 0.004, a pH of 7.205 ± 0.006, an osmolarity of 310 mosmol/Kg and a viscosity of 8.818 ± 0.076 cP. Moreover, it presented an excellent stability and exhibited a significant improvement (p < 0.05) in apparent permeability coefficient (1.982 ± 0.187 × 10-6 cm/s) when compared to commercialized formulation (1.165 ± 0.106 × 10-6 cm/s). These results suggest that SNEDDS is a promising carrier for voriconazole ocular delivery.
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Affiliation(s)
| | - Mohamed Ali Lassoued
- Faculty of Pharmacy, Laboratory of Pharmaceutical, Chemical and Pharmacological Drug Development LR12ES09, University of Monastir, Monastir, Tunisia
| | - Amel Kamoun
- Laboratory for Advanced Materials, National School of Engineering, University of Sfax, Sfax, Tunisia
| | - Badr Bahloul
- Faculty of Pharmacy, Laboratory of Pharmaceutical, Chemical and Pharmacological Drug Development LR12ES09, University of Monastir, Monastir, Tunisia
| | - Karim Miladi
- Faculty of Pharmacy, Laboratory of Pharmaceutical, Chemical and Pharmacological Drug Development LR12ES09, University of Monastir, Monastir, Tunisia
| | - Souad Sfar
- Faculty of Pharmacy, Laboratory of Pharmaceutical, Chemical and Pharmacological Drug Development LR12ES09, University of Monastir, Monastir, Tunisia
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Guermech I, Lassoued MA, Abdelhamid A, Sfar S. Correction to: Development and Assessment of Lipidic Nanoemulsions Containing Sodium Hyaluronate and Indomethacin. AAPS PharmSciTech 2019; 21:29. [PMID: 31858295 DOI: 10.1208/s12249-019-1580-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
During the production process, the typesetter inadvertently placed the wrong Fig. 2 in the PDF version of the article.
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Guermech I, Lassoued MA, Abdelhamid A, Sfar S. Development and Assessment of Lipidic Nanoemulsions Containing Sodium Hyaluronate and Indomethacin. AAPS PharmSciTech 2019; 20:330. [PMID: 31677079 DOI: 10.1208/s12249-019-1543-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 09/18/2019] [Indexed: 11/30/2022] Open
Abstract
The present work attempts to develop and optimize the formula of a lipidic nanoemulsion (NE) containing sodium hyaluronate (HNa) and indomethacin (Ind) as HNa-Ind for enhanced transdermal antiarthritic activity. NEs were prepared by the spontaneous emulsification method and characterized by Fourier-transform infrared (FTIR) spectroscopy. The composition of the optimal formulation was statistically optimized using Box-Behnken experimental design method with three independent factors and was characterized for particle size, polydispersity index, and percent transmittance. The selected formula was tested for its in vitro antioxidant activity and in vivo anti-inflammatory activity. The optimized HNa-Ind NE formula was characterized and displayed a particle size of 12.87 ± 0.032 nm, polydispersity index of 0.606 ± 0.082, and 99.4 ± 0.1 percentage of transmittance. FTIR showed no interaction between HNa and Ind as a physical mixture. In addition, the optimized HNa-Ind NE was able to preserve the antioxidant ability of the two drugs, as evidenced through a 2,2-diphenyl-1-picrylhydrazyl (DPPH) inhibition assay used to assess free radical scavenging ability. The cell viability was increased while the free radical scavenging activity was decreased (94.28% inhibition at higher concentrations compared with vitamin C as a reference with an inhibition of 100%). Moreover, the pharmacological anti-inflammatory potential of the optimized HNa-Ind NE formulation was assessed using an in vivo model. Compared with reference drugs (ibuprofen gel 5%), the remarkable activity of the optimized formulation was established using xylene-induced ear edema in mice model, in which the inflamed region reduced by 92.5% upon treatment. The optimized HNa-Ind NE formulation showed considerably higher skin permeation and drug deposition capability compared with the HNa-Ind solution. HNa-Ind NE was demonstrated to be a successful carrier with enhanced antioxidant and anti-inflammatory potential while showing better skin penetration, thus being a promising vehicle for transdermal drug delivery.
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Faidi A, Lassoued MA, Becheikh MEH, Touati M, Stumbé JF, Farhat F. Application of sodium alginate extracted from a Tunisian brown algae Padina pavonica for essential oil encapsulation: Microspheres preparation, characterization and in vitro release study. Int J Biol Macromol 2019; 136:386-394. [PMID: 31173834 DOI: 10.1016/j.ijbiomac.2019.06.023] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 05/19/2019] [Accepted: 06/03/2019] [Indexed: 11/23/2022]
Abstract
In recent years, there has been considerable interest in essential oils encapsulation and in developing biodegradable microparticles. The aim of this present work was to prepare clove essential oil loaded microspheres, by a modified emulsification method, using sodium alginate extracted from a Tunisian Brown seaweed Algae Padina pavonica as biopolymer. The obtained microparticles were characterized by FT-IR, DSC and SEM. Loading capacity yield, encapsulation efficiency (%EE) and in vitro release of the essential oil were also investigated. Sodium alginate microspheres were successfully prepared as confirmed by physico-chemical characterizations. %yield of microspheres and %EE of essential oil were 72.73% and 24.77% ± 7.47%, respectively. SEM showed pseudospherical microspheres with rough surface ranging, in size, from 1500 μm to 3000 μm. In vitro dissolution study indicates a controlled released of the essential oil which follows, mainly, classical Fickian diffusion. Thus, this present work highlighted the potential of this polysaccharide as a biopolymer to formulate polymeric microspheres.
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Affiliation(s)
- Adel Faidi
- Laboratory of Chemical, Galenic and Pharmacological Development of Medicines (LR12ES09), University of Monastir, Faculty of Pharmacy of Monastir, Ibn Sina Street, 5000 Monastir, Tunisia.
| | - Mohamed Ali Lassoued
- Laboratory of Chemical, Galenic and Pharmacological Development of Medicines (LR12ES09), University of Monastir, Faculty of Pharmacy of Monastir, Ibn Sina Street, 5000 Monastir, Tunisia
| | - Mohamed El Hédi Becheikh
- Laboratory of Chemical, Galenic and Pharmacological Development of Medicines (LR12ES09), University of Monastir, Faculty of Pharmacy of Monastir, Ibn Sina Street, 5000 Monastir, Tunisia
| | - Mouna Touati
- Laboratory of Chemical, Galenic and Pharmacological Development of Medicines (LR12ES09), University of Monastir, Faculty of Pharmacy of Monastir, Ibn Sina Street, 5000 Monastir, Tunisia
| | - Jean-François Stumbé
- Laboratory of Photochemistry and Macromolecular Engineering Jean Baptiste Donnet Institute, National Engineering School of Chemistry of Mulhouse, 68093 Mulhouse, France
| | - Farhat Farhat
- Laboratory of Chemical, Galenic and Pharmacological Development of Medicines (LR12ES09), University of Monastir, Faculty of Pharmacy of Monastir, Ibn Sina Street, 5000 Monastir, Tunisia
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Bahloul B, Lassoued MA, Seguin J, Lai-Kuen R, Dhotel H, Sfar S, Mignet N. Self-emulsifying drug delivery system developed by the HLB-RSM approach: Characterization by transmission electron microscopy and pharmacokinetic study. Int J Pharm 2015; 487:56-63. [PMID: 25870031 DOI: 10.1016/j.ijpharm.2015.04.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Revised: 04/02/2015] [Accepted: 04/09/2015] [Indexed: 11/29/2022]
Abstract
Recently, we developed a new approach to rationalize an optimized design for self-emulsifying drug delivery system (SEDDS) by introducing the HLB and the response surface as determinant factors in SEDDS development. The aim of this current paper is to assess the suitability of this HLB-RSM approach to enhance the oral bioavailability of BCS class II compounds using fenofibrate as drug model. Eight SEDDS formulations (I→VIII) were pre-selected regarding their self-emulsification capacity and their effect on increasing in vitro drug release. They were firstly evaluated for their thermodynamic stability and zeta potential. Unstable SEDDS were discarded meanwhile the structural morphology of the stable ones (I, VI and VIII) was characterized using transmission electron microscopy (TEM). A pharmacokinetic study was then undertaken on male BALB/cJRj mices. The in vivo results showed a significant increase of fenofibrate absorption for all the three stable SEDDS formulations compared to the commercialized form, (LIPANTHYL micronized(®) (p<0.05)). The highest enhancement was recorded for SEDDS I, where AUC and Cmax values respectively increased by 2 and 4.4 folds. This justifies the fact that HLB-RSM approach could be considered as a promising method for the development of efficient and highly stable SEDDS aiming to increase the poor bioavailability of BCS class II molecules.
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Affiliation(s)
- Badr Bahloul
- Laboratory of Pharmaceutical, Chemical and Pharmacological Drug Development LR12ES09, Faculty of Pharmacy, University of Monastir, Tunisia.
| | - Mohamed Ali Lassoued
- Laboratory of Pharmaceutical, Chemical and Pharmacological Drug Development LR12ES09, Faculty of Pharmacy, University of Monastir, Tunisia
| | - Johanne Seguin
- CNRS UMR 8258 - Inserm U1022, Paris Descartes University, Paris F-75006, France
| | - René Lai-Kuen
- Technical Platform of the IFR71/IMTCE-Cellular and Molecular Imaging, Faculty of Pharmacy, Paris Descartes University, Paris, France
| | - Hélène Dhotel
- CNRS UMR 8258 - Inserm U1022, Paris Descartes University, Paris F-75006, France
| | - Souad Sfar
- Laboratory of Pharmaceutical, Chemical and Pharmacological Drug Development LR12ES09, Faculty of Pharmacy, University of Monastir, Tunisia
| | - Nathalie Mignet
- CNRS UMR 8258 - Inserm U1022, Paris Descartes University, Paris F-75006, France
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Bahloul B, Lassoued MA, Sfar S. A novel approach for the development and optimization of self emulsifying drug delivery system using HLB and response surface methodology: Application to fenofibrate encapsulation. Int J Pharm 2014; 466:341-8. [DOI: 10.1016/j.ijpharm.2014.03.040] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Revised: 03/18/2014] [Accepted: 03/19/2014] [Indexed: 10/25/2022]
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Rouis Z, Elaissi A, Abid NBS, Lassoued MA, Cioni PL, Flamini G, Aouni M. Chemical Composition and Intraspecific Variability of the Essential Oils of Five Populations of Hypericum triquetrifoliumTurra Growing in North Tunisia. Chem Biodivers 2012; 9:806-16. [DOI: 10.1002/cbdv.201100214] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Abstract
Abstract
Objectives
Clopidogrel, a thienopyridine antiplatelet agent, is a poor aqueous soluble compound and a P-glycoprotein (P-gp) efflux pump substrate. These two factors are responsible for its incomplete intestinal absorption. In this study, we have attempted to enhance the absorption of clopidogrel by improving its solubility and by inhibiting intestinal P-gp activity.
Methods
Solubility enhancement was achieved by preparing solid dispersions. Quinidine and naringin were selected as P-gp inhibitors, whilst tartaric acid was selected as the intestinal absorption enhancer. Absorption studies were performed using the everted gut sac model prepared from rat jejunum. The determination of clopidogrel was performed by high performance liquid chromatography.
Key findings
We noticed an enhancement of clopidogrel absorption by improving its solubility or by inhibiting the P-gp activity. The greatest results were obtained for solid dispersions in the presence of P-gp inhibitors at their highest concentrations, with an absorption improvement of 3.41- and 3.91-fold for naringin (15 mg/kg) and quinidine (200 µm), respectively. However, no clopidogrel absorption enhancement occurred in the presence of tartaric acid.
Conclusions
Naringin, a natural compound which has no undesirable side effects as compared with quinidine, could be used as a pharmaceutical excipient in the presence of clopidogrel solid dispersions to increase clopidogrel intestinal absorption and therefore its oral bioavailability.
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Affiliation(s)
| | - Souad Sfar
- Laboratory of Galenic Pharmacy, University of Monastir, Monastir, Tunisia
| | - Abderrahman Bouraoui
- Laboratory of Pharmacology, Research Unit URSAM, Faculty of Pharmacy of Monastir, University of Monastir, Monastir, Tunisia
| | - Fathia Khemiss
- Laboratory of Human Physiology, Faculty of Dental Medicine of Monastir, University of Monastir, Monastir, Tunisia
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Lassoued MA, Khemiss F, Sfar S. Comparative study of Two In Vitro Methods for Assessing Drug Absorption: Sartorius SM 16750 Apparatus Versus Everted Gut Sac. J Pharm Pharm Sci 2011; 14:117-27. [DOI: 10.18433/j3gc7r] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
– Purpose. Oral drug administration remains the most common and most convenient way used in clinical therapy. The availability of a simple, rapid, economic and reproducible in vitro method to assess drug absorption is a very helpful tool. The purpose of this study is to compare the performance of Sartorius SM 16750 Absorption Simulator apparatus to Everted Gut Sac (EGS) technique in terms of predicting drug absorption. Methods. Permeation studies across these two in vitro models were performed with six drugs selected across the Biopharmaceutics Classification System (BCS) categories: Tramadol (class I of BCS), doxcycycline (class I of BCS), diclofenac (class II of BCS), clopidogrel (class II of BCS), metformin (class III of BCS) and chlorothiazide (class IV of BCS). Results. Apparent permeability coefficient (Papp) and diffusion profiles obtained with EGS and Sartorius SM 16750 apparatus were similar for diclofenac and metformine. But there were differences in results, for the other molecules. Conclusion. It could be concluded that the Sartorius SM 16750 apparatus, easier to carry out, could be an alternative to EGS when drug passage across intestinal barrier occurs by passive diffusion and when no efflux system is implicated in limiting the transepithelial passage.
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