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Merah A, Abidi A, Chaffai N, Bataille B, Gherraf N. Role of hydroxypropylmethylcellulose (HPMC 4000) in the protection of the polymorphs of Piroxicam extended release tablets. ARAB J CHEM 2017. [DOI: 10.1016/j.arabjc.2013.03.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Bouchal F, Skiba M, Chaffai N, Hallouard F, Fatmi S, Lahiani-Skiba M. Fast dissolving cyclodextrin complex of piroxicam in solid dispersion part I: influence of β-CD and HPβ-CD on the dissolution rate of piroxicam. Int J Pharm 2014; 478:625-32. [PMID: 25522828 DOI: 10.1016/j.ijpharm.2014.12.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [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: 11/04/2014] [Revised: 12/09/2014] [Accepted: 12/11/2014] [Indexed: 10/24/2022]
Abstract
Sublingual drug delivery is an interesting route for drug having significant hepatic first-pass metabolism or requiring rapid pharmacological effect as for patients suffering from swallowing difficulties, nausea or vomiting. Sublingual absorption could however be limited by the kinetic of drug dissolution. This study evaluated influences of cyclodextrins (β-CD or HP-β-CD) and their different inclusion process (spray-drying or freeze-drying) on the drug dissolution kinetic of solid dispersions in poly(ethylene glycol) (PEG, Mw 6000Da) of piroxicam, used as poor hydrosoluble drug model. A secondary objective was to determine influences of drug dispersion process in PEG (evaporation or melting methods) on the drug dissolution kinetic of piroxicam. Piroxicam solid dispersions containing or not cyclodextrins were characterized by different scanning calorimetry (DSC), Thermogravometry analyser (TGA) and Fourier transform-infrared spectroscopy (FT-IR) spectroscopy. In vitro drug dissolution study of these solid dispersions was then performed. The results demonstrated the high potential and interest of solid dispersions of drug previously included in cyclodextrins for sublingual delivery of hydrophobic drugs. This study also showed the advantages of evaporation method on the melting ones during drug dispersion in PEG. Indeed, drug complexation with cyclodextrins as dispersion by melting prevented the presence in solid dispersions of drug in crystalline form which can represent up to 63%. Moreover, dispersion in PEG by evaporation method gave more porous drug delivery system than with melting methods. This allowed complete (limited at most at 80-90% with melting methods) and quick drug dissolution without rebound effect like with melting ones.
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Affiliation(s)
- F Bouchal
- Galenic Pharmaceutical Laboratory, UFR Medecine and Pharmacy, Rouen University, 22 Bd Gambetta, F-76183 Rouen, France; Pharmaceutical Laboratory, Department of Engineering Processes, Faculty of Technology, Abderrahmane-Mira University, Route de Targua Ouzemmour, DZ-06000 Bejaia, Algeria
| | - M Skiba
- Galenic Pharmaceutical Laboratory, UFR Medecine and Pharmacy, Rouen University, 22 Bd Gambetta, F-76183 Rouen, France.
| | - N Chaffai
- Galenic Pharmaceutical Laboratory, Medecine Faculty, Badji Mokhtar University, DZ-23000 Annaba, Algeria
| | - F Hallouard
- Galenic Pharmaceutical Laboratory, UFR Medecine and Pharmacy, Rouen University, 22 Bd Gambetta, F-76183 Rouen, France
| | - S Fatmi
- Pharmaceutical Laboratory, Department of Engineering Processes, Faculty of Technology, Abderrahmane-Mira University, Route de Targua Ouzemmour, DZ-06000 Bejaia, Algeria
| | - M Lahiani-Skiba
- Galenic Pharmaceutical Laboratory, UFR Medecine and Pharmacy, Rouen University, 22 Bd Gambetta, F-76183 Rouen, France
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Bouchal F, Skiba M, Fatmi S, Chaffai N, Lahiani-Skiba M. Influence of the Preparation Method on the Dissolution Properties of Piroxicam - Cyclodextrins Systems. LETT DRUG DES DISCOV 2014. [DOI: 10.2174/1570180811666140207215957] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Drif K, Fassi Fihri O, Loutfi C, Sebbar G, Chaffai N, Moulay Ennaji M, Elharrak M. Phylogeny of BTV in Morocco: determination of new reassortants. Front Immunol 2013. [DOI: 10.3389/conf.fimmu.2013.02.00338] [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: 11/13/2022] Open
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Hammouchi M, Loutfi C, Sebbar G, Touil N, Chaffai N, Batten C, Harif B, Oura C, El Harrak M. Experimental infection of alpine goats with a Moroccan strain of peste des petits ruminants virus (PPRV). Vet Microbiol 2012; 160:240-4. [PMID: 22633480 DOI: 10.1016/j.vetmic.2012.04.043] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2012] [Revised: 04/20/2012] [Accepted: 04/30/2012] [Indexed: 11/17/2022]
Abstract
Peste des petits ruminants virus (PPRV) recently caused a serious outbreak of disease in Moroccan sheep and goats. Alpine goats were highly susceptible to PPRV with mortality rates approaching 100%, as opposed to local breeds of sheep which were less susceptible to the disease. The relative susceptibility of alpine goats was investigated through an experimental infection study with the Moroccan strain of PPRV. Severe clinical signs were observed in the alpine goats with virus being excreted through ocular, nasal and oral routes. No difference in the severity of the disease in goats was observed with different inoculation routes and transmission of the virus by direct contact was confirmed. This study confirmed the susceptibility of the alpine goat to PPRV infection and describes a challenge protocol that effectively and consistently reproduced severe clinical signs of PPR in experimentally infected goats.
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Affiliation(s)
- Mustapha Hammouchi
- Société de productions pharmaceutiques et vétérinaires, Laboratoire de Virologie, Av Hassan II, BP 4569, Rabat, Morocco
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