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Altamimi MA, Elzayat EM, Qamar W, Alshehri SM, Sherif AY, Haq N, Shakeel F. Evaluation of the bioavailability of hydrocortisone when prepared as solid dispersion. Saudi Pharm J 2019; 27:629-636. [PMID: 31297016 PMCID: PMC6598222 DOI: 10.1016/j.jsps.2019.03.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Accepted: 03/06/2019] [Indexed: 01/05/2023] Open
Abstract
This study was conducted to formulate, characterize, and investigate the bioavailability of hydrocortisone (HCT) when prepared as solid dispersions. HCT was mixed in an organic solvent with polyethylene glycol 4000 (PEG 4000) and Kolliphor® P 407. Spray drying technique was employed to form a solid dispersion formulation at a specific ratio. Physical and chemical characterization of the formed particles were achieved using differential scanning calorimetry, scanning electron microscopy, Fourier transform infrared spectroscopy, and powder X-ray diffractometry. Furthermore, comparative in vitro and in vivo studies were conducted between the formulated particles against neat HCT. The formulated solid dispersion showed elongated particles with leaf-like structure. Formation of new chemical bonds in the formed particle was suggested due to the change in the vibrational wave numbers and the significant improvement in the bioavailability of the dispersed particles proved the importance of this technique.
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Affiliation(s)
- Mohammad A Altamimi
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
- Central Laboratory, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Ehab M Elzayat
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Wajhul Qamar
- Central Laboratory, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Sultan M Alshehri
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Abdelrahman Y Sherif
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Nazrul Haq
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Faiyaz Shakeel
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
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Lee MS, Seo SR, Kim JC. A β-cyclodextrin, polyethyleneimine and silk fibroin hydrogel containingCentella asiaticaextract and hydrocortisone acetate: releasing properties andin vivoefficacy for healing of pressure sores. Clin Exp Dermatol 2012; 37:762-71. [DOI: 10.1111/j.1365-2230.2011.04331.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Shankland N, Pearson A, Johnson JR, Salole EG. The Influence of β-Cyclodextrin on the Release of Hydrocortisone From a Topical Cream Base. J Pharm Pharmacol 2011. [DOI: 10.1111/j.2042-7158.1985.tb14179.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- N Shankland
- Department of Pharmacy, University of Strathclyde, Glasgow 1 1XW
| | - A Pearson
- Department of Pharmacy, University of Strathclyde, Glasgow 1 1XW
| | - J R Johnson
- Department of Pharmacy, University of Strathclyde, Glasgow 1 1XW
| | - E G Salole
- Department of Pharmacy, University of Strathclyde, Glasgow 1 1XW
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Aboutaleb AE, Abdel Rahman AA, Ismail S. Studies of Cyclodextrin Inclusion Complexes: I - Inclusion Complexes Between α- And β-Cyclodextrins and Chloramphenicol in Aqeuous Solutions. Drug Dev Ind Pharm 2008. [DOI: 10.3109/03639048609042634] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Strauss L, Fuenzalida M, Illanes J, Dabancens A, Díaz E, Lemus D, Guerrero A. Effect of sulfated beta-cyclodextrin, a water soluble cycloamylose, on the promotion and/or inhibition of angiogenesis. Pathol Oncol Res 2002; 8:47-53. [PMID: 11994763 DOI: 10.1007/bf03033701] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Previous studies have reported that sulfated b b-cyclodextrin, a naturally occurring cycloamylose built up from six to eight glucopyranose units, when administered alone promotes angiogenesis, but administered with an angiostatic steroid inhibits angiogenesis in the cick embryo bioassay. In our experiments sulfated b b-cyclodextrin has been shown to possess many properties unrelated to its classical functions in the promotion and inhibition of angiogenesis that were not previously described. We studied the angiogenic and angiostatic properties of b b-cyclodextrin in a subcutaneous plastic sponge model in mice. We realized two set of experiments. In each set mice were randomized into five groups (n= 5 mice). The first group was treated with sulfated b b-cyclodextrin (200 ng), the second group was treated with sulfated b b-cyclodextrin (2000 ng), the third group received unsubstituted b b-cyclodextrin (2000 ng), the fourth group was treated with sulfated b b-cyclodextrin (20000 ng) and the last group was used as a control group. In all groups compounds were administered intraperitoneally 4 days after subcutaneous implantation of a sterile polyvinyl sponge on day 0, controls were not treated. Cyclodextrin administered alone at low drug concentration (200 ng) promoted angiogenesis and increased the development of venules in the sponge matrix. However, cyclodextrin administered at high drug concentration (2000 and 20 000 ng) reduced the vessel index in the sponge and areas of microhemorrhages were observed. From our results we propose that b b-cyclodextrin contains both a promoter and an inhibitor of angiogenesis and that the activation of both is drug concentration dependent.
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Affiliation(s)
- Laura Strauss
- Department of Experimental Medicine, Faculty of Medicine, University of Chile, Santiago de Chile.
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Abstract
The reversed-phase liquid chromatography retention and separation of a series of D,L dansyl amino acids were investigated over a wide range of salting-out agent (sucrose) concentrations using native beta-cyclodextrin as a chiral stationary phase. An original treatment was developed to determine the number of sucrose molecules (n) excluded from the solute-beta-cyclodextrin cavity interface when the analyte transfer occurred. Using the n values, the relative degrees of compound inclusion were calculated and correlated to the steric bulkiness of the solute. Thermodynamic parameter variations are discussed in relation to the inclusion degree of the dansyl amino acids. This numerical approach is a valuable tool to explore the steric effects implied in the host-guest complex formation.
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Zughul MB, al-Omari M, Badwan AA. Thermodynamics of propylparaben/beta-cyclodextrin inclusion complexes. Pharm Dev Technol 1998; 3:43-53. [PMID: 9532599 DOI: 10.3109/10837459809028478] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The aim of this study was to develop models for rigorous analysis of phase solubility diagrams, particularly the descending portion, in order to obtain individual thermodynamic complex formation and solubility product constants. Additionally, the effect of varying the initial solute concentration St, in excess of the optimal solubility Sm, on the general shape of the plateau and descending portions of the solubility diagram was investigated. The solubilities of propylpapraben (Seq) were measured against initial beta-cyclodextrin concentrations (Lt) at different temperatures and different St. Equilibrium concentrations (Leq) were also measured. The only effect observed was a broadening of the plateau region with increase in St with no discernible effect on Sm. Simultaneous rigorous analysis of the rising as well as the descending portions of the phase diagram could only be interpreted in terms of formation of two soluble complexes: SL and S2L. Rigorous analysis of the descending portion allowed the determination of individual formation constants K11 (SL) and K21 (S2L) in addition to the solubility product of the less soluble complex KS11 (SL). Thermodynamic analysis of the individual solubility of propylparaben and beta-cyclodextrin was carried out in water at different temperatures. In aqueous beta-cyclodextrin solutions, however, the solubility of propylparaben is enhanced due to the formation of both SL (delta G11(0) = -26.4 kJ/mol) and S2L (delta G21(0) = -46.4 kJ/mol) soluble complexes. Formation of the SL-complex is favored both by enthalpy (delta H11(0) = -20.7 kJ/mol) and a slight increase in entropy (delta S11(0) = 18.6 J/mol.K). Formation of S2L from SL apparently involves stronger solute-SL binding (delta H21(0) = -45.9 kJ/mol) yet is retarded by a net decrease in entropy (delta S21(0) = -86.3 J/mol.K). The solubility of the SL-complex is highly endothermic (delta HS11(0) = 55.8 kJ/mol), and although is accompanied by much randomization (delta SS11(0) = 101.8 J/mol.K), its solubility remains quite low (delta GS11(0) = 25.5 kJ/mol). Molecular mechanical modeling of propylparaben/beta-cyclodextrin interactions in water revealed that the S2L-complex formation is energetically more favored.
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Affiliation(s)
- M B Zughul
- Department of Chemistry, University of Jordan, Amman, Jordan
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Boudeville P, Burgot JL. A new pH-metric methodology for the determination of thermodynamic inclusion constants of guest/cyclodextrin complexes. J Pharm Sci 1995; 84:1083-9. [PMID: 8537886 DOI: 10.1002/jps.2600840910] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
A new methodology of pH-metric data treatment was developed to extract the stoichiometry and the thermodynamic association constants of guest-cyclodextrin inclusion complexes in dilute aqueous solution when the guest is a participant in an acid-base equilibrium. pH-metric titration curves in the presence of cyclodextrin (CD) were treated by a curve-fitting technique according to a nonlinear least-squares regression. Equations corresponding to the different kinds of acid-base pairs (AH/A-, BH+/B) and stoichiometries (1:1 and 1:2) were established. The methodology was validated by studying the 5-phenylbarbituric acid complexation with beta-CD and the 4-cyanobenzoic acid complexation with alpha-CD. Then it was applied to chlorpromazine. Both the acid form (constant K1 = 3260) and the base form (constant G1 = 13,100) gave complexes with beta-CD according to 1:1 stoichiometry.
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Affiliation(s)
- P Boudeville
- Département de Physicochimie et Biocinétique des Pharmacosystèmes 2, Rennes, France
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Sadlej-Sosnowska N. Molecular complexation: β-cyclodextrin and steroid hormones inclusion complexes studied by high performance liquid chromatography. Eur J Pharm Sci 1995. [DOI: 10.1016/0928-0987(94)00006-l] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Preiss A, Mehnert W, Frömming KH. Complexation of Hydrocortison with β-Cyclodextrin and Hydroxypropyl-β-Cyclodextrin. Arch Pharm (Weinheim) 1994. [DOI: 10.1002/ardp.19943271109] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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In Koo Chun, Duk Sim Yun. Inclusion complexation of hydrocortisone butyrate with cyclodextrins and dimethyl-β-cyclodextrin in aqueous solution and in solid state. Int J Pharm 1993. [DOI: 10.1016/0378-5173(93)90216-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Djedaïni F, Perly B. Nuclear magnetic resonance investigation of the stoichiometries in beta-cyclodextrin:steroid inclusion complexes. J Pharm Sci 1991; 80:1157-61. [PMID: 1815075 DOI: 10.1002/jps.2600801213] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Nuclear magnetic resonance at high field has been used to investigate the stoichiometries of pharmacologically important beta-cyclodextrin:steroid complexes. This technique provides evidence for the existence of true inclusion complexes and allows unequivocal determination of the stoichiometry for complexes obtained in the solid state, as well as in solution. The present data clarify previously published determinations of the stoichiometry of these complexes and show the influence of the nature and position of functional groups on the molecular ratio in the complex. The observed behavior can be rationalized using representative steroids and allows prediction of the strength of inclusion and the most probable stoichiometry.
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Affiliation(s)
- F Djedaïni
- Service de Chimie Moléculaire, Centre d'Etudes Nucléaires de Saclay, Gif sur Yvette, France
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Agnus B, Sebille B, Gosselet M. Effects of β-cyclodextrin in the mobile phase on the retention and indirect detection of non-electrolytes in reversed-phase liquid chromatography. J Chromatogr A 1991. [DOI: 10.1016/s0021-9673(01)95974-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Wouessidjewe D, Crassous A, Duchêne D, Coleman A, Rysanek N, Tsoucaris G, Perly B, Djedaini F. Inclusion of spironolactone in cyclomaltoheptaose: A guest affected by the hospitality of the host. Carbohydr Res 1989. [DOI: 10.1016/0008-6215(89)85189-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Folkman J, Weisz PB, Joullié MM, Li WW, Ewing WR. Control of angiogenesis with synthetic heparin substitutes. Science 1989; 243:1490-3. [PMID: 2467380 DOI: 10.1126/science.2467380] [Citation(s) in RCA: 241] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Many diseases are dominated by persistent growth of capillary blood vessels. Tumor growth is also angiogenesis-dependent. Safe and effective angiogenesis inhibitors are needed to determine whether control of angiogenesis would be therapeutic. Heparin and certain steroids, administered together, can inhibit angiogenesis in a synergistic manner. This "pair" effect suggested that specific hydrophilic cycloamyloses may be suitable heparin substitutes. beta-Cyclodextrin tetradecasulfate administered with a steroid inhibits angiogenesis at 100 to 1000 times the effectiveness of heparin in the chick embryo bioassay. This cyclic oligosaccharide also augments the anti-angiogenic effect of angiostatic steroids against corneal neovascularization in rabbits when beta-cyclodextrin tetradecasulfate and a steroid are inserted into the cornea or applied topically as eyedrops.
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Affiliation(s)
- J Folkman
- Department of Surgery, Harvard Medical School, Boston, MA 02115
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Takahashi SI, Suzuki EI, Nagashima N. NMR Study on Inclusion Complexes of L-Phenylalanine and Aspartame with Cyclodextrins in Aqueous Solution. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 1986. [DOI: 10.1246/bcsj.59.1129] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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