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Kaboudi N, Asl SG, Nourani N, Shayanfar A. Solubilization of drugs using beta-cyclodextrin: Experimental data and modeling. ANNALES PHARMACEUTIQUES FRANÇAISES 2024; 82:663-672. [PMID: 38340807 DOI: 10.1016/j.pharma.2024.02.003] [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: 12/18/2023] [Revised: 01/30/2024] [Accepted: 02/05/2024] [Indexed: 02/12/2024]
Abstract
Many drug candidates fail to complete the entire drug development process because of poor physicochemical properties. Solubility is an important physicochemical property which plays a vital role in various stages of drug discovery and development. Several methods have been proposed to enhance the solubility of drugs, and complex formation with cyclodextrins is among them. Beta-cyclodextrin (βCD) is a common excipient for solubilization of drugs. The aim of this study is to develop the mechanistic QSPR models to predict the solubility enhancement of a drug in the presence of βCD. In this study, the solubility enhancement of some drugs in the presence of 10mM βCD at 25°C was experimentally determined or collected from the literature. Two different models to predict the solubilization by βCD were developed by binary logistic regression using structural properties of drugs with more than 80% accuracy. Polar surface area and excess molar refraction are the main parameters for estimating solubilization by βCD. Moreover, other descriptors related to hydrophobicity and the capability of hydrogen bonding formation of molecules could improve the accuracy of the established models.
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Affiliation(s)
- Navid Kaboudi
- Student Research Committee, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Saba Ghasemi Asl
- Student Research Committee, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Nasim Nourani
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ali Shayanfar
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.
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2
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Chopra H, Verma R, Kaushik S, Parashar J, Madan K, Bano A, Bhardwaj R, Pandey P, Kumari B, Purohit D, Kumar M, Bhatia S, Rahman MH, Mittal V, Singh I, Kaushik D. Cyclodextrin-Based Arsenal for Anti-Cancer Treatments. Crit Rev Ther Drug Carrier Syst 2023; 40:1-41. [PMID: 36734912 DOI: 10.1615/critrevtherdrugcarriersyst.2022038398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Anti-cancer drugs are mostly limited in their use due to poor physicochemical and biopharmaceutical properties. Their lower solubility is the most common hurdle limiting their use upto their potential. In the recent years, the cyclodextrin (CD) complexation have emerged as existing approach to overcome the problem of poor solubility. CD-based nano-technological approaches are safe, stable and showed well in vivo tolerance and greater payload for encapsulation of hydrophobic drugs for the targeted delivery. They are generally chosen due to their ability to get self-assembled to form liposomes, nanoparticles, micelles and nano-sponges etc. This review paper describes a birds-eye view of the various CD-based nano-technological approaches applied for the delivery of anti-cancer moieties to the desired target such as CD based liposomes, niosomes, niosoponges, micelles, nanoparticles, monoclonal antibody, magnetic nanoparticles, small interfering RNA, nanorods, miscellaneous formulation of anti-cancer drugs containing CD. Moreover, the author also summarizes the various shortcomings of such a system and their way ahead.
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Affiliation(s)
- Hitesh Chopra
- Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India
| | - Ravinder Verma
- Department of Pharmacy, G.D. Goenka University, Sohna Road, Gurugram 122103, India
| | - Sakshi Kaushik
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak 124001, India
| | - Jatin Parashar
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak 124001, India
| | - Kumud Madan
- Lloyd Institute of Management and Technology (Pharm), Knowledge Park, Greater Noida, U.P., India
| | - Afsareen Bano
- Centre for Medical Biotechnology, Maharshi Dayanand University, Rohtak 124001, India
| | - Rashmi Bhardwaj
- Centre for Medical Biotechnology, Maharshi Dayanand University, Rohtak 124001, India
| | - Parijat Pandey
- Department of Pharmaceutical Sciences, Gurugram University, Gurugram 122413, India
| | - Beena Kumari
- Department of Pharmaceutical Sciences, Indira Gandhi University, Meerpur, Rewari, India
| | - Deepika Purohit
- Department of Pharmaceutical Sciences, Indira Gandhi University, Meerpur, Rewari, India
| | - Manish Kumar
- M.M. College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala 133207, Haryana, India
| | - Saurabh Bhatia
- Natural and Medical Sciences Research Center, University of Nizwa, Nizwa, Sultanate of Oman; School of Health Science, University of Petroleum and Energy Studies, Dehradun, Uttarakhand 248007, India
| | - Md Habibur Rahman
- Department of Pharmacy, Southeast University, Banani, Dhaka 1213, Bangladesh
| | - Vineet Mittal
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak 124001, India
| | - Inderbir Singh
- Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India
| | - Deepak Kaushik
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak 124001, India
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Bekircan O, Danış Ö, Şahin ME, Çetin M. Monoamine oxidase A and B inhibitory activities of 3,5-diphenyl-1,2,4-triazole substituted [1,2,4]triazolo[3,4-b][1,3,4]thiadiazole derivatives. Bioorg Chem 2021; 118:105493. [PMID: 34814086 DOI: 10.1016/j.bioorg.2021.105493] [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: 07/10/2021] [Revised: 09/08/2021] [Accepted: 11/13/2021] [Indexed: 11/02/2022]
Abstract
Monoamine oxidase (EC 1.4.3.4, MAO) is a flavin adenine dinucleotide-containing flavoenzyme located on the outer mitochondrial membrane and catalyzes the oxidative deamination of monoaminergic neurotransmitters and dietary amines. MAO exists in humans as two isoenzymes, hMAO-A and hMAO-B, which are distinguished by their tertiary structures, preferred substrates and inhibitors, and selective inhibition of these isoenzymes are used in the treatment of different diseases such as Alzheimer's, Parkinson's and depression. In the present study, we report the design, synthesis and characterization of 3,5-diphenyl-1,2,4-triazole substituted [1,2,4]triazolo[3,4-b][1,3,4]thiadiazole derivatives as novel and selective inhibitors of hMAO-B. Twenty one compounds (38, 39a-h, 41a-d, 42a-h) were screened for their inhibitory activity against hMAO-A and hMAO-B by using in vitro Amplex Red® reagent based fluorometric method and all compounds were found to be as selective h-MAO-B inhibitors to a different degree. The compound 42e and 42h displayed the highest inhibitory activity against hMAO-B with IC50 values of 2.51 and 2.81 µM, respectively, and more than 25-fold selectivity towards inhibition of hMAO-B. A further kinetic evaluation of the most potent derivative (42e) was also performed and a mixed mode of inhibition of hMAO-B by the compound 42e was determined (Ki = 0,26 µM). According to our findings the [1,2,4]triazolo[3,4-b][1,3,4]thiadiazole emerged as a promising scaffold for the development of novel and selective hMAO-B inhibitors.
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Affiliation(s)
- Olcay Bekircan
- Department of Chemistry, Faculty of Science, Karadeniz Technical University, 61080 Trabzon, Turkey.
| | - Özkan Danış
- Department of Chemistry, Faculty of Arts and Sciences, Marmara University, 34722 Istanbul, Turkey
| | - Mehmet Eren Şahin
- Department of Chemistry, Faculty of Science, Karadeniz Technical University, 61080 Trabzon, Turkey
| | - Mert Çetin
- Department of Chemistry, Faculty of Arts and Sciences, Marmara University, 34722 Istanbul, Turkey
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4
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Cysewski P, Przybyłek M, Rozalski R. Experimental and Theoretical Screening for Green Solvents Improving Sulfamethizole Solubility. MATERIALS (BASEL, SWITZERLAND) 2021; 14:5915. [PMID: 34683507 PMCID: PMC8539550 DOI: 10.3390/ma14205915] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 09/30/2021] [Accepted: 10/05/2021] [Indexed: 01/22/2023]
Abstract
Solubility enhancement of poorly soluble active pharmaceutical ingredients is of crucial importance for drug development and processing. Extensive experimental screening is limited due to the vast number of potential solvent combinations. Hence, theoretical models can offer valuable hints for guiding experiments aimed at providing solubility data. In this paper, we explore the possibility of applying quantum-chemistry-derived molecular descriptors, adequate for development of an ensemble of neural networks model (ENNM), for solubility computations of sulfamethizole (SMT) in neat and aqueous binary solvent mixtures. The machine learning procedure utilized information encoded in σ-potential profiles computed using the COSMO-RS approach. The resulting nonlinear model is accurate in backcomputing SMT solubility and allowed for extensive screening of green solvents. Since the experimental characteristics of SMT solubility are limited, the data pool was extended by new solubility measurements in water, five neat organic solvents (acetonitrile, N,N-dimethylformamide, dimethyl sulfoxide, 1,4-dioxane, and methanol), and their aqueous binary mixtures at 298.15, 303.15, 308.15, and 313.15 K. Experimentally determined order of decreasing SMT solubility in neat solvents is the following: N,N-dimethylformamide > dimethyl sulfoxide > methanol > acetonitrile > 1,4dioxane >> water, in all studied temperatures. Similar trends are observed for aqueous binary mixtures. Since N,N-dimethylformamide is not considered as a green solvent, the more acceptable replacers were searched for using the developed model. This step led to the conclusion that 4-formylmorpholine is a real alternative to N,N-dimethylformamide, fulfilling all requirements of both high dissolution potential and environmental friendliness.
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Affiliation(s)
- Piotr Cysewski
- Department of Physical Chemistry, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Kurpińskiego 5, 85-950 Bydgoszcz, Poland;
| | - Maciej Przybyłek
- Department of Physical Chemistry, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Kurpińskiego 5, 85-950 Bydgoszcz, Poland;
| | - Rafal Rozalski
- Department of Clinical Biochemistry, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Karłowicza 24, 85-950 Bydgoszcz, Poland;
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5
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Preparation and characterization of spiro-acridine derivative and 2-hydroxypropyl-β-cyclodextrin inclusion complex. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128945] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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6
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Choipang C, Buntum T, Chuysinuan P, Techasakul S, Supaphol P, Suwantong O. Gelatin scaffolds loaded with asiaticoside/
2‐hydroxypropyl‐β
‐cyclodextrin complex for use as wound dressings. POLYM ADVAN TECHNOL 2020. [DOI: 10.1002/pat.5166] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
| | - Tanawat Buntum
- School of Science Mae Fah Luang University Chiang Rai Thailand
| | - Piyachat Chuysinuan
- Laboratory of Organic Synthesis Chulabhorn Research Institute Bangkok Thailand
| | - Supanna Techasakul
- Laboratory of Organic Synthesis Chulabhorn Research Institute Bangkok Thailand
| | - Pitt Supaphol
- The Petroleum and Petrochemical College Chulalongkorn University Bangkok Thailand
| | - Orawan Suwantong
- School of Science Mae Fah Luang University Chiang Rai Thailand
- Center for Chemical Innovation for Sustainability (CIS) Mae Fah Luang University Chiang Rai Thailand
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7
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Gurbanov AV, Kuznetsov ML, Mahmudov KT, Pombeiro AJL, Resnati G. Resonance Assisted Chalcogen Bonding as a New Synthon in the Design of Dyes. Chemistry 2020; 26:14833-14837. [PMID: 32567710 DOI: 10.1002/chem.202002518] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Indexed: 12/31/2022]
Abstract
Intramolecular chalcogen bonding in arylhydrazones of sulfamethizole is strengthened by conjugation in the π-system of a noncovalent five-membered ring. The S⋅⋅⋅O distance in the sulfamethizole moiety of these compounds ranges from 2.698(3) to 2.806(15) Å, which indicates its strong dependence on the attached arylhydrazone fragments. Information on the nature of the intramolecular chalcogen bond was afforded by DFT calculations.
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Affiliation(s)
- Atash V Gurbanov
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisboa, Portugal.,Department of Chemistry, Baku State University, Z. Xalilov Str. 23, Az, 1148, Baku, Azerbaijan
| | - Maxim L Kuznetsov
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisboa, Portugal
| | - Kamran T Mahmudov
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisboa, Portugal.,Department of Chemistry, Baku State University, Z. Xalilov Str. 23, Az, 1148, Baku, Azerbaijan
| | - Armando J L Pombeiro
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisboa, Portugal
| | - Giuseppe Resnati
- Laboratory of Nanostructured Fluorinated Materials (NFMLab), Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Via L. Mancinelli 7, 20131, Milano, Italy
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8
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Preparation of 1,3,4-oxadiazoles and 1,3,4-thiadiazoles via chemoselective сyclocondensation of electrophilically activated nitroalkanes to (thio)semicarbazides or thiohydrazides. Chem Heterocycl Compd (N Y) 2020. [DOI: 10.1007/s10593-020-02775-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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9
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Anti-hyperalgesic and anti-inflammatory effects of citral with β-cyclodextrin and hydroxypropyl-β-cyclodextrin inclusion complexes in animal models. Life Sci 2019; 229:139-148. [DOI: 10.1016/j.lfs.2019.05.026] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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10
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Al-Qubaisi MS, Rasedee A, Flaifel MH, Eid EE, Hussein-Al-Ali S, Alhassan FH, Salih AM, Hussein MZ, Zainal Z, Sani D, Aljumaily AH, Saeed MI. Characterization of thymoquinone/hydroxypropyl-β-cyclodextrin inclusion complex: Application to anti-allergy properties. Eur J Pharm Sci 2019; 133:167-182. [DOI: 10.1016/j.ejps.2019.03.015] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 02/26/2019] [Accepted: 03/18/2019] [Indexed: 12/20/2022]
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11
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Auda SH, Al-Omrani AH, Alanazi FK, Badran MM, Shakeel F. Design, characterization and evaluation of oral fast dissolving polymeric films of isradipine inclusion complex. Polym Bull (Berl) 2018. [DOI: 10.1007/s00289-018-2503-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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12
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Yang P, Li Y, Li W, Zhang H, Gao J, Sun J, Yin X, Zheng A. Preparation and evaluation of carfentanil nasal spray employing cyclodextrin inclusion technology. Drug Dev Ind Pharm 2018; 44:953-960. [DOI: 10.1080/03639045.2018.1425426] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Peng Yang
- Department of Pharmacy, XuZhou Medical University, Xuzhou, China
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Ying Li
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Wanqing Li
- School of Preclinical Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Hui Zhang
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Jing Gao
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Jianxu Sun
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Xiaoxing Yin
- Department of Pharmacy, XuZhou Medical University, Xuzhou, China
| | - Aiping Zheng
- Department of Pharmacy, XuZhou Medical University, Xuzhou, China
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing, China
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13
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Attoui Yahia H, Attoui Yahia O, Khatmi D, Belghiche R, Bouzitouna A. Quantum chemical investigations on hydrogen bonding interactions established in the inclusion complex β-cyclodextrin/benzocaine through the DFT, AIM and NBO approaches. J INCL PHENOM MACRO 2017. [DOI: 10.1007/s10847-017-0753-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Ashwaq AAS, Rasedee A, Abdul AB, Taufiq-Yap YH, Al-Qubaisi MS, Eid EEM. Characterization, drug release profile and cytotoxicity of Dentatin-Hydroxypropyl-β-Cyclodextrin complex. J INCL PHENOM MACRO 2017. [DOI: 10.1007/s10847-016-0688-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Ramazani A, Ahmadi Y, Aghahosseini H, Joo SW. “β-Cyclodextrin nano-reactor”-catalyzed synthesis of 2H-chromene-2,3-dicarboxylates from in-situ-generated stabilized phosphorus ylides via intramolecular Wittig reaction in water. PHOSPHORUS SULFUR 2016. [DOI: 10.1080/10426507.2015.1072193] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Ali Ramazani
- Department of Chemistry, University of Zanjan, Zanjan, Islamic Republic of Iran
| | - Yavar Ahmadi
- Department of Chemistry, University of Zanjan, Zanjan, Islamic Republic of Iran
- Young Researchers and Elite Club, Marand Branch, Islamic Azad University, Marand, Islamic Republic of Iran
| | | | - Sang Woo Joo
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, Republic of Korea
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16
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Ramazani A, Ayoubi S, Ahmadi Y, Ahankar H, Aghahosseini H, Woo Joo S. “β-Cyclodextrin Nanoreactor” Catalyzed Synthesis of Coumarin Derivatives from In-Situ Generated Stabilized Phosphorus Ylides in Water. PHOSPHORUS SULFUR 2015. [DOI: 10.1080/10426507.2015.1073285] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Ali Ramazani
- Department of Chemistry, University of Zanjan, Zanjan, P O Box 45195-313, Iran
| | - Saman Ayoubi
- Department of Chemistry, University of Zanjan, Zanjan, P O Box 45195-313, Iran
| | - Yavar Ahmadi
- Department of Chemistry, University of Zanjan, Zanjan, P O Box 45195-313, Iran
- Young Researchers and Elite Clube, Marand Branch, Islamic Azad University, Marand, Iran
| | - Hamideh Ahankar
- Department of Chemistry, Abhar Branch, Islamic Azad University, Abhar, P O Box 22, Iran
| | | | - Sang Woo Joo
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, 712-749, Republic of Korea
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17
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Cho E, Jung S. Supramolecular Complexation of Carbohydrates for the Bioavailability Enhancement of Poorly Soluble Drugs. Molecules 2015; 20:19620-46. [PMID: 26516835 PMCID: PMC6332515 DOI: 10.3390/molecules201019620] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Revised: 10/16/2015] [Accepted: 10/22/2015] [Indexed: 01/22/2023] Open
Abstract
In this review, a comprehensive overview of advances in the supramolecular complexes of carbohydrates and poorly soluble drugs is presented. Through the complexation process, poorly soluble drugs could be efficiently delivered to their desired destinations. Carbohydrates, the most abundant biomolecules, have diverse physicochemical properties owing to their inherent three-dimensional structures, hydrogen bonding, and molecular recognition abilities. In this regard, oligosaccharides and their derivatives have been utilized for the bioavailability enhancement of hydrophobic drugs via increasing the solubility or stability. By extension, polysaccharides and their derivatives can form self-assembled architectures with poorly soluble drugs and have shown increased bioavailability in terms of the sustained or controlled drug release. These supramolecular systems using carbohydrate will be developed consistently in the field of pharmaceutical and medical application.
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Affiliation(s)
- Eunae Cho
- Center for Biotechnology Research in UBITA (CBRU), Institute for Ubiquitous Information Technology and Applications (UBITA), Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Korea.
| | - Seunho Jung
- Center for Biotechnology Research in UBITA (CBRU), Institute for Ubiquitous Information Technology and Applications (UBITA), Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Korea.
- Microbial Carbohydrate Resource Bank (MBRC), Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Korea.
- Department of Bioscience and Biotechnology, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Korea.
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18
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Rudrangi SRS, Trivedi V, Mitchell JC, Wicks SR, Alexander BD. Preparation of olanzapine and methyl-β-cyclodextrin complexes using a single-step, organic solvent-free supercritical fluid process: An approach to enhance the solubility and dissolution properties. Int J Pharm 2015; 494:408-16. [DOI: 10.1016/j.ijpharm.2015.08.062] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2015] [Revised: 08/19/2015] [Accepted: 08/20/2015] [Indexed: 10/23/2022]
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19
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Rudrangi SRS, Bhomia R, Trivedi V, Vine GJ, Mitchell JC, Alexander BD, Wicks SR. Influence of the preparation method on the physicochemical properties of indomethacin and methyl-β-cyclodextrin complexes. Int J Pharm 2015; 479:381-90. [DOI: 10.1016/j.ijpharm.2015.01.010] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Revised: 01/06/2015] [Accepted: 01/07/2015] [Indexed: 10/24/2022]
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20
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Başbağ AB, Gümüşderelioğlu M, Şimşek M, Güner A. Poly(HEMA)/cyclodextrin-based hydrogels for subconjunctival delivery of cyclosporin A. J Appl Polym Sci 2014. [DOI: 10.1002/app.40397] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- A. Berna Başbağ
- Department of Chemical Engineering; Hacettepe University; Beytepe Ankara 06800 Turkey
| | - Menemşe Gümüşderelioğlu
- Department of Chemical Engineering; Hacettepe University; Beytepe Ankara 06800 Turkey
- Department of Nanotechnology and Nanomedicine; Hacettepe University; Beytepe Ankara 06800 Turkey
| | - Murat Şimşek
- Department of Nanotechnology and Nanomedicine; Hacettepe University; Beytepe Ankara 06800 Turkey
| | - Ali Güner
- Department of Chemistry; Hacettepe University; Beytepe Ankara 06800 Turkey
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21
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Auda SH. Nimesulide/methyl β-cyclodextrin inclusion complexes: physicochemical characterization, solubility, dissolution, and biological studies. Drug Dev Res 2013; 75:68-75. [PMID: 24648149 DOI: 10.1002/ddr.21156] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Accepted: 09/24/2013] [Indexed: 11/11/2022]
Abstract
Nimesulide (NIM) is an insoluble nonsteroidal anti-inflammatory drug (NSAID). Complexation of drug with methyl β-cyclodextrin was evaluated to improve solubility and dissolution rate of NIM. Complexation was achieved via a coevaporation technique to obtain different drug to polymer molar ratios (1:1, 1:2, and 1:3). The physicochemical characterization of the systems using powder X-ray diffraction and infrared spectroscopy was carried out to understand the influence of this technological process on the physical status of single components and complex systems and to detect possible interactions between drug and carrier. Moreover, quantitative solubility and in vitro dissolution studies of NIM alone and NIM inclusion complexes were studied in the dissolution media of phosphate buffer pH 5.5 and 7.4. The analysis provided existence of a molecular interaction between drug and carrier together in the complex state. The study showed that the inclusion systems enhanced of drug solubility, dissolution rate, and anti-inflammatory activity.
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Affiliation(s)
- Sayed H Auda
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Kingdom of Saudi Arabia; Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Al-Azhar University, Assiut, Egypt
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Ali SM, Fatma K, Dhokale S. Structure elucidation of β-cyclodextrin-xylazine complex by a combination of quantitative (1)H-(1)H ROESY and molecular dynamics studies. Beilstein J Org Chem 2013; 9:1917-24. [PMID: 24204401 PMCID: PMC3817606 DOI: 10.3762/bjoc.9.226] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Accepted: 08/15/2013] [Indexed: 11/23/2022] Open
Abstract
The complexation of xylazine with β-cyclodextrin was studied in aqueous medium. 1H NMR titrations confirmed the formation of a 1:1 inclusion complex. A ROESY spectrum was recorded with long mixing time which contained TOCSY artifacts. It only confirmed the presence of xylazine aromatic ring in the β-cyclodextrin cavity. No information regarding the mode of penetration, from the wide or narrow side, could be obtained. We calculated the peak intensity ratio from the inter-proton distances for the most stable conformations obtained by molecular dynamics studies in vacuum. The results show that highly accurate structural information can be deduced efficiently by the combined use of quantitative ROESY and molecular dynamics analysis. On the other hand, a ROESY spectrum with no spin diffusion can only compliment an averaged ensemble conformation obtained by molecular dynamics which is generally considered ambiguous.
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Affiliation(s)
- Syed Mashhood Ali
- Department of Chemistry, Aligarh Muslim University, Aligarh-202002, India
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23
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Semalty A, Tanwar YS. Nimesulide-phosphatidylcholine Complex for Improvement of Solubility and
Dissolution. ACTA ACUST UNITED AC 2013. [DOI: 10.3923/ajdd.2013.225.234] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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24
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Cunha-Filho MSS, Martínez-Pacheco R, Landin M. Effect of storage conditions on the stability of β-lapachone in solid state and in solution. J Pharm Pharmacol 2013; 65:798-806. [DOI: 10.1111/jphp.12040] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2012] [Accepted: 01/06/2013] [Indexed: 12/11/2022]
Abstract
Abstract
Objectives
In this work, the effects of several technological factors on the stability of β-lapachone (βLAP) in solution and in the solid state were investigated.
Methods
The effects of relative humidity and light on the stability of βLAP in the solid state were studied. Samples were characterized by liquid chromatography, thermal analysis, X-ray powder diffraction and optical microscopy. In solution, the effects of light conditions and additives (cyclodextrins) were also evaluated. Molecular modelling was used to support the degradation mechanism involved. Additionally, the pH stability profile of βLAP was established.
Key findings
The synergism of relative humidity and light promoted degradation of βLAP in the solid state, with important consequences for the physical and chemical characteristics of the drug after storage. Random methyl-β-cyclodextrin was able to protect the drug against the hydrolytic process in darkness. However, it accelerated the drug decomposition by photolysis in light conditions. According to the pH stability profile, βLAP undergoes an alkaline hydrolysis, its maximum stability pH being over the range 2–4.
Conclusions
These studies provide useful information regarding the optimal storage conditions and formulations of βLAP.
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Affiliation(s)
- Marcílio S S Cunha-Filho
- Faculdade de Ciências da Saúde, Campus Universitário Darcy Ribeiro, Universidade de Brasília (UnB), Brasília, Brazil
| | - Ramón Martínez-Pacheco
- Departamento de Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, Campus Vida, Universidad de Santiago de Compostela, Santiago de Compostela, Spain
| | - Mariana Landin
- Departamento de Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, Campus Vida, Universidad de Santiago de Compostela, Santiago de Compostela, Spain
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25
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George SJ, Vasudevan DT. Studies on the Preparation, Characterization, and Solubility of 2-HP-β-Cyclodextrin-Meclizine HCl Inclusion Complexes. J Young Pharm 2012; 4:220-7. [PMID: 23493156 PMCID: PMC3573373 DOI: 10.4103/0975-1483.104365] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Meclizine HCl is a poorly water-soluble drug having a very slow-onset of action. The effect of 2-hydroxypropyl-β-cyclodextrins and β-cyclodextrins on its aqueous solubility and dissolution rate was investigated. The phase solubility profile indicated that the solubility of Meclizine HCl was significantly increased in the presence of both 2-hydroxypropyl-β-cyclodextrin and β- cyclodextrin; an extend of increase being more for 2-hydroxypropyl-β-cyclodextrin. It was classified as AL-type, indicating the 1:1 stoichiometric inclusion complexes. The complexes formed were quite stable. The solid complexes prepared by physical mixtures, kneading methods, and co-precipitation methods were characterized using differential scanning calorimetry and FTIR. An in vitro study showed that the solubility and dissolution rate of Meclizine HCl were significantly improved by complexation with 2-hydroxypropyl-β-cyclodextrin. Tablet formulation using 1:1 kneading complex of Meclizine HCl and 2-hydroxypropyl-β-cyclodextrin with drug equivalent to 25 mg was prepared by a direct compression method. A dissolution study of prepared tablets was performed in 0.5% SLS in water (pH 7.0). Almost 96% drug was released from the formulation at the end of 30min. A comparison study of prepared tablets was done with marketed a Meclizine HCl 25 mg conventional tablet. From the results of dissolution study, it was found that the prepared formulation was showing better release, which was statistically significant P < 0.01 than a marketed tablet (paired t-test). Only 54% drug release was observed from the marketed tablet at the end of 30 min. Hence this study concludes that the solubility enhancement of Meclizine HCl could be successfully achieved using the inclusion complexation technique.
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Affiliation(s)
- SJ George
- Department of Pharmaceutics, Amrita School of Pharmacy, AIMS Health Care Campus, Kochi, Kerala, India
| | - DT Vasudevan
- Department of Pharmaceutics, Amrita School of Pharmacy, AIMS Health Care Campus, Kochi, Kerala, India
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26
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ZHOU R, WANG F, GUO Z, ZHAO Y. PREPARATION AND CHARACTERIZATION OF RESVERATROL/HYDROXYPROPYL-β-CYCLODEXTRIN INCLUSION COMPLEX USING SUPERCRITICAL ANTISOLVENT TECHNOLOGY. J FOOD PROCESS ENG 2011. [DOI: 10.1111/j.1745-4530.2010.00617.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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27
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Leila N, Sakina H, Bouhadiba A, Fatiha M, Leila L. Molecular modeling investigation of para-nitrobenzoic acid interaction in β-cyclodextrin. J Mol Liq 2011. [DOI: 10.1016/j.molliq.2011.02.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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28
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Use of 2-hydroxypropyl-β-cyclodextrin as adjuvant for enhancing encapsulation and release characteristics of asiaticoside within and from cellulose acetate films. Carbohydr Polym 2011. [DOI: 10.1016/j.carbpol.2011.02.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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29
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Zoppi A, Quevedo MA, Delrivo A, Longhi MR. Complexation of sulfonamides with beta-cyclodextrin studied by experimental and theoretical methods. J Pharm Sci 2010; 99:3166-76. [PMID: 20166198 DOI: 10.1002/jps.22062] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The complex formation between three structurally related sulfonamides (sulfadiazine (SDZ), sulfamerazine (SMR), and sulfamethazine (SMT)) and beta-cyclodextrin (beta-CD) was studied, by exploring its structure affinity relationship. In all the cases, 1:1 stoichiometries were determined with different relative affinities found by phase solubility (SDZ:beta-CD > SMR:beta-CD > SMT:beta-CD) and nuclear magnetic resonance (NMR) (SMT:beta-CD > SMR:beta-CD > SDZ:beta-CD) studies. The spatial configurations determined by NMR were in agreement with those obtained by molecular modeling, showing that SDZ included its aniline ring into beta-CD, while SMR and SMT included the substituted pyrimidine ring. Energetic analyses demonstrated that hydrophobicity is the main driving force to complex formation.
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Affiliation(s)
- Ariana Zoppi
- Departamento de Farmacia, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Ciudad Universitaria, 5000 Córdoba, Argentina
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30
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Preparation and characterization of the inclusion complex of hypocrellin A with hydroxypropyl-β-cyclodextrin. Eur Food Res Technol 2010. [DOI: 10.1007/s00217-010-1322-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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31
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Controlled release of antifungal volatiles of thyme essential oil from β-cyclodextrin capsules. J INCL PHENOM MACRO 2010. [DOI: 10.1007/s10847-009-9726-3] [Citation(s) in RCA: 89] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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32
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Madi F, Khatmi D, Dhaoui N, Bouzitouna A, Abdaoui M, Boucekkine A. Molecular model of CENS piperidine β-CD inclusion complex: DFT study. CR CHIM 2009. [DOI: 10.1016/j.crci.2009.06.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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33
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El-Barghouthi M, Jaime C, Akielah R, Al-Sakhen N, Masoud N, Issa A, Badwan A, Zughul M. Free energy perturbation and MM/PBSA studies on inclusion complexes of some structurally related compounds with β-cyclodextrin. Supramol Chem 2009. [DOI: 10.1080/10610270802613562] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
| | - C. Jaime
- b Department de Quimica , Universitat Autonoma de Barcelona , Bellatterra, Spain
| | - R.E. Akielah
- a Department of Chemistry , The Hashemite University , Zarqa, Jordan
| | - N.A. Al-Sakhen
- a Department of Chemistry , The Hashemite University , Zarqa, Jordan
| | - N.A. Masoud
- a Department of Chemistry , The Hashemite University , Zarqa, Jordan
| | - A.A. Issa
- a Department of Chemistry , The Hashemite University , Zarqa, Jordan
| | - A.A. Badwan
- c The Jordanian Pharmaceutical Manufacturing Company , Naor, Jordan
| | - M.B. Zughul
- d Department of Chemistry , University of Jordan , Amman, Jordan
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34
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Zhang X, Wu D, Lai J, Lu Y, Yin Z, Wu W. Piroxicam/2‐Hydroxypropyl‐β‐Cyclodextrin Inclusion Complex Prepared by a New Fluid‐Bed Coating Technique. J Pharm Sci 2009; 98:665-75. [DOI: 10.1002/jps.21453] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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35
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Basavaraj S, Sihorkar V, Shantha Kumar TR, Sundaramurthi P, Srinivas NR, Venkatesh P, Ramesh M, Kumar Singh S. Bioavailability Enhancement of Poorly Water Soluble and Weakly Acidic New Chemical Entity with 2-Hydroxy Propyl-β-Cyclodextrin: Selection of Meglumine, a Polyhydroxy Base, as a Novel Ternary Component. Pharm Dev Technol 2008; 11:443-51. [PMID: 17101515 DOI: 10.1080/10837450600770577] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The purpose of the present study was to investigate the influence of a polyhydroxy base, N-acetyl glucamine (also know as Meglumine), as a ternary component on the complexation of DRF-4367, a poorly water-soluble and weakly acidic anti-inflammatory molecule, with 2-hydroxypropyl-beta-cyclodextrin (HPbetaCD). The molecular inclusion of DRF-4367 with HPbetaCD alone and in combination with ternary component was aimed at improvement in solubility and, subsequently, dissolution rate-limited oral bioavailability. The solid complexes of DRF-4367 and HPbetaCD with or without meglumine (binary and ternary systems, respectively) were prepared as coevaporated product in different stoichiometric ratios and compared against physical mixture. The formation of inclusion complexes was confirmed by using classical instrumental techniques. Phase solubility studies suggested that meglumine was responsible for solubility improvement via multiple factors rather than just providing a favorable pH. Mechanisms and factors governing solubility enhancement were investigated by using phase solubility and thermodynamic parameters. The complexation of DRF-4367 with HPbetaCD is thermodynamically favored because the Gibbs free energies of transfer of the drug to the cyclodextrin cavity are negative. The solubilization efficiency and stability were further improved while retaining the favorable Gibbs free energies of transfer with the addition of meglumine. Inclusion ternary complex of DRF-4367 with HPbetaCD and meglumine showed significant improvement in dissolution compared with uncomplexed drug and binary system. Moreover, the phenomena of reprecipitation observed with binary system during dissolution could be avoided with meglumine as an enabling ternary component. This improved physicochemical behavior of ternary complex with the novel inclusion of a polyhydroxy base translated into an enhanced oral bioavailability of DRF-4367 compared with either uncomplexed drug or nanosuspension.
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Affiliation(s)
- S Basavaraj
- Formulation Research Department, Discovery Research, Dr Reddy's Laboratories Ltd, Hyderabad, India
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36
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Brun H, Paul M, Razzouq N, Binhas M, Gibaud S, Astier A. Cyclodextrin Inclusion Complexes of the Central Analgesic Drug Nefopam. Drug Dev Ind Pharm 2008; 32:1123-34. [PMID: 17090434 DOI: 10.1080/03639040600920663] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Inclusion complexes of nefopam base (NEF) with various beta-cyclodextrins (betaCDs) were investigated. All tested betaCDs increased the apparent solubility of NEF according to a Higuchi AL type plot (except betaCD: AN type plot), which indicates the formation of 1:1 stoichiometry inclusion complexes. 1H-NMR and 13C-NMR experiments showed that complexation by CDs allowed an easy separation of the R and S enantiomers. Based on spectral data obtained from the two-dimensional rotating frame nuclear Overhauser effect spectroscopy (2D-ROESY), a reasonable geometry for the complexes could be proposed implicating the insertion of the benzoxazocine ring into the wide end of the torus cavity.
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Affiliation(s)
- H Brun
- Laboratoire de Pharmacotechnie, Service de Pharmacie, Hôpital Henri Mondor, Créteil, France
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37
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ATR/Raman and Fractal Characterization of HPBCD/Progesterone Complex Solid Particles. Pharm Res 2008; 25:2030-40. [DOI: 10.1007/s11095-008-9593-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2008] [Accepted: 04/04/2008] [Indexed: 10/21/2022]
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38
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39
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Lee SY, Jung II, Kim JK, Lim GB, Ryu JH. Preparation of itraconazole/HP-β-CD inclusion complexes using supercritical aerosol solvent extraction system and their dissolution characteristics. J Supercrit Fluids 2008. [DOI: 10.1016/j.supflu.2007.09.006] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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40
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El-Barghouthi M, Jaime C, Al-Sakhen N, Issa A, Abdoh A, Al Omari M, Badwan A, Zughul M. Molecular dynamics simulations and MM–PBSA calculations of the cyclodextrin inclusion complexes with 1-alkanols, para-substituted phenols and substituted imidazoles. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.theochem.2007.12.005] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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41
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42
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Briquet L, Staelens N, Leherte L, Vercauteren DP. Structural, energetic, and dynamical properties of rotaxanes constituted of α-cyclodextrins and an azobenzene chain. J Mol Graph Model 2007; 26:104-16. [PMID: 17161967 DOI: 10.1016/j.jmgm.2006.10.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2006] [Revised: 10/09/2006] [Accepted: 10/09/2006] [Indexed: 10/23/2022]
Abstract
The [3]rotaxane synthesised as a single isomer constituted of two cyclodextrins (CDs) and an azobenzene chain [M.R. Craig, T.D.W. Claridge, M.G. Hutchings, H.L. Anderson, Synthesis of a cyclodextrin azo dye [3]rotaxane as a single isomer, Chem. Commun. 16 (1999) 1537-1538] has been investigated using molecular mechanics (MM) and dynamics (MD) with the MM3 force field in order to evaluate the stability of various configurations of the complex in the isolated and solvated states. The influence of the blocking groups and the presence of energy barriers along the azo chain were first investigated through the calculation of an energy profile. It revealed that the CD could translate along the chain at room temperature without any decomplexation. Next, MD simulations of three different types of configurations, i.e., head-to-head, head-to-tail, and tail-to-tail, of the [3]rotaxane were carried out. The non-solvated phase simulations showed structures with the CDs close to each other while the solvated ones showed structures with CDs separated by larger distances. This separation occurs due to the solute-solvent interactions. When the systems are in isolated state, the observed structure of the complexes are less stable due to an unfavourable arrangement of the hydroxyls groups of the adjacent CD faces. When considering solvation, energies of the three configurations are roughly identical due to the large distance between the faces of the CDs.
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Affiliation(s)
- Ludovic Briquet
- Laboratoire de Physico-Chimie Informatique (PCI), University of Namur, 61 rue de Bruxelles, 5000 Namur, Belgium.
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43
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Manca ML, Zaru M, Ennas G, Valenti D, Sinico C, Loy G, Fadda AM. Diclofenac-beta-cyclodextrin binary systems: physicochemical characterization and in vitro dissolution and diffusion studies. AAPS PharmSciTech 2005; 6:E464-72. [PMID: 16354006 PMCID: PMC2750392 DOI: 10.1208/pt060358] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
The aim of this work was to study the influence of beta-cyclodextrin (beta-CD) on the biopharmaceutic properties of diclofenac (DCF). To this purpose the physicochemical characterization of diclofenac-beta-cyclodextrin binary systems was performed both in solution and solid state. Solid phase characterization was performed using differential scanning calorimetry (DSC), powder x-ray diffractometry (XRD), and Fourier transform infrared spectroscopy (FTIR). Phase solubility analyses, and in vitro permeation experiments through a synthetic membrane were performed in solution. Moreover, DCF/beta-CD interactions were studied in DMSO by 1H nuclear magnetic resonance (NMR) spectroscopy. The effects of different preparation methods and drug-to-beta-CD molar ratios were also evaluated. Phase solubility studies revealed 1:1 M complexation of DCF when the freeze-drying method was used for the preparation of the binary system. The true inclusion for the freeze-dried binary system was confirmed by 1H NMR spectroscopy, DSC, powder XRD, and IR studies. The dissolution study revealed that the drug dissolution rate was improved by the presence of CDs and the highest and promptest release was obtained with the freeze-dried binary system. Diffusion experiments through a silicone membrane showed that DCF diffusion was higher from the saturated drug solution (control) than the freeze-dried inclusion complexes, prepared using different DCF-beta-CD molar ratios. However, the presence of the inclusion complex was able to stabilize the system giving rise to a more regular diffusion profile.
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Affiliation(s)
- Maria Letizia Manca
- Dipartimento Farmaco Chimico Tecnologico, Università di Cagliari, Via Ospedale 72, 09124 Cagliari, Italy
| | - Marco Zaru
- Dipartimento Farmaco Chimico Tecnologico, Università di Cagliari, Via Ospedale 72, 09124 Cagliari, Italy
| | - Guido Ennas
- Dipartimento di Scienze Chimiche, Università di Cagliari, SS554 bivio per Sestu, 09042 Monserrato (CA), Italy
| | - Donatella Valenti
- Dipartimento Farmaco Chimico Tecnologico, Università di Cagliari, Via Ospedale 72, 09124 Cagliari, Italy
| | - Chiara Sinico
- Dipartimento Farmaco Chimico Tecnologico, Università di Cagliari, Via Ospedale 72, 09124 Cagliari, Italy
| | - Giuseppe Loy
- Dipartimento Farmaco Chimico Tecnologico, Università di Cagliari, Via Ospedale 72, 09124 Cagliari, Italy
| | - Anna Maria Fadda
- Dipartimento Farmaco Chimico Tecnologico, Università di Cagliari, Via Ospedale 72, 09124 Cagliari, Italy
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44
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Challa R, Ahuja A, Ali J, Khar RK. Cyclodextrins in drug delivery: an updated review. AAPS PharmSciTech 2005; 6:E329-57. [PMID: 16353992 PMCID: PMC2750546 DOI: 10.1208/pt060243] [Citation(s) in RCA: 743] [Impact Index Per Article: 39.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
The purpose of this review is to discuss and summarize some of the interesting findings and applications of cyclodextrins (CDs) and their derivatives in different areas of drug delivery, particularly in protein and peptide drug delivery and gene delivery. The article highlights important CD applications in the design of various novel delivery systems like liposomes, microspheres, microcapsules, and nanoparticles. In addition to their well-known effects on drug solubility and dissolution, bioavailability, safety, and stability, their use as excipients in drug formulation are also discussed in this article. The article also focuses on various factors influencing inclusion complex formation because an understanding of the same is necessary for proper handling of these versatile materials. Some important considerations in selecting CDs in drug formulation such as their commercial availability, regulatory status, and patent status are also summarized. CDs, because of their continuing ability to find several novel applications in drug delivery, are expected to solve many problems associated with the delivery of different novel drugs through different delivery routes.
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Affiliation(s)
- Rajeswari Challa
- Department of Pharmaceutics, Faculty of Pharmacy, Hamdard University, 110062 New Delhi, India
| | - Alka Ahuja
- Department of Pharmaceutics, Faculty of Pharmacy, Hamdard University, 110062 New Delhi, India
| | - Javed Ali
- Department of Pharmaceutics, Faculty of Pharmacy, Hamdard University, 110062 New Delhi, India
| | - R. K. Khar
- Department of Pharmaceutics, Faculty of Pharmacy, Hamdard University, 110062 New Delhi, India
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45
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Moneghini M, Kikic I, Perissutti B, Franceschinis E, Cortesi A. Characterisation of nimesulide-betacyclodextrins systems prepared by supercritical fluid impregnation. Eur J Pharm Biopharm 2005; 58:637-44. [PMID: 15451539 DOI: 10.1016/j.ejpb.2004.04.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2003] [Accepted: 04/02/2004] [Indexed: 10/26/2022]
Abstract
The purpose of this study was to apply the supercritical CO(2) impregnation process for preparing solvent-free nimesulide (NMS)-betacyclodextrins (BCD) association systems with enhanced drug dissolution rate. Several drug-to-carrier molar ratios were tested (1:1; 1:2.5; 1:3.5) at different conditions of temperatures (40, 100, and 130 degrees C) and pressures (140, 190 or 220 bar). The physical and morphological characterisation of the systems using powder X-ray diffraction, thermal analysis, diffuse reflectance Fourier transform-infrared spectroscopy and scanning electron microscopy was carried out to understand the influence of this technological process on the physical status of single components and binary systems and to detect possible interactions between drug and carrier. These analyses provided no evidence of a complete inclusion of NMS in the carrier but the existence of interactions between drug and carrier together with a partial dehydration of the BCD and the formation of drug crystallites with lower melting point and heat of fusion than the native NMS. These phenomena were more intense when severe conditions of pressure and temperature (220 bar and 130 degrees C) were used during impregnation trials and when the amount of BCD augmented in the systems. These activated solid state of the impregnated systems promoted an enhancement of drug dissolution rate that, in keeping with the results of the physical characterisation, was function of the process conditions and BCD content.
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Affiliation(s)
- M Moneghini
- Department of Pharmaceutical Sciences, University of Trieste, Trieste, Italy.
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46
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Pose-Vilarnovo B, Rodríguez-Tenreiro C, Rosa dos Santos JF, Vázquez-Doval J, Concheiro A, Alvarez-Lorenzo C, Torres-Labandeira JJ. Modulating drug release with cyclodextrins in hydroxypropyl methylcellulose gels and tablets. J Control Release 2004; 94:351-63. [PMID: 14744486 DOI: 10.1016/j.jconrel.2003.10.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
This paper reports on the effect of beta-cyclodextrin (beta-CD) and hydroxypropyl-beta-cyclodextrin (HP-beta-CD) on the diffusion and the release behavior of diclofenac sodium and sulphamethizole from HPMC K4M gels and matrix tablets. The gels were prepared with 0.5-2.0% polymer and different drug/CD mole ratios, and their viscosity, cloud point and drug diffusion coefficients were estimated. No differences in cloud point were observed. The viscosity of the gels strongly depended on HPMC proportions (from 0.7 to 100 mPa.s), which affected to a lesser extent the resistance to the diffusion of the drugs (D values from 60 x 10(-6) to 5 x 10(-6) cm(2)/s). The influence of CD on diffusion was particularly evident in gels prepared with polymer proportions above its entanglement concentration, 2.0% HPMC K4M. In these systems, while high drug/CD proportions enhanced the diffusivity preventing polymer/drug hydrophobic interactions, low drug/CD ratios hindered it. An excess of free CD, especially the bulky HP-beta-CD, made the diffusion of the complexes in the relatively low mesh size 2% polymer network more difficult. In the case of tablets, CD plays an additional role as dissolution rate promoter. To evaluate to what extent the balance between the increase in dissolution rate and the decrease in diffusion rate induced by CD determines drug release, matrix tablets were prepared by direct compression of 100 mg drug and 400 mg polymer/CD/lactose blends, whose composition was chosen following a simplex centroid design. A higher CD/lactose ratio significantly increased the release rate of hydrophobic drugs (sulphamethizole), but decreased the release rate of hydrophilic drugs (diclofenac sodium), indicating the predominance of a different contribution depending on the hydrophilicity of the drug. Therefore, the use of CD derivatives may be particularly useful to modulate drug release from HPMC gels and matrix tablets; the influence of these additives being dependent on the nature of the drug and on the molecular size and hydrophilic character of the CD used.
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Affiliation(s)
- Beatriz Pose-Vilarnovo
- Departamento de Farmacia e Tecnoloxía Farmacéutica, Facultade de Farmacia, Universidade de Santiago de Compostela, Campus Sur, E-15782, Santiago de Compostela, Spain
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47
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Viernstein H, Weiss-Greiler P, Wolschann P. Solubility enhancement of low soluble biologically active compounds--temperature and cosolvent dependent inclusion complexation. Int J Pharm 2003; 256:85-94. [PMID: 12695014 DOI: 10.1016/s0378-5173(03)00065-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The solubility enhancement of biologically active compounds was analysed in dependence on temperature, amount of cosolvents and on beta-cyclodextrin as complexing agent. The analysis was performed for the systemic fungicide triflumizole (TF), a poorly water soluble compound. All parameters lead to an improvement of the solubility, the largest effect was obtained for host-guest complexation with beta-cyclodextrin. Generally, the combination of cosolvents and beta-cyclodextrin does not increase the solubility of the compound, because cosolvents destabilize the inclusion complex. At higher cosolvent concentrations the solubility of TF is mainly determined by the solubility of the free non-complexed compound in the solvent mixtures. Raising temperature enhances the solubility in any cases. It could be shown that the temperature dependence of the solubility of TF is controlled by the solubility in the solvent mixtures and not by the inclusion reaction.
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Affiliation(s)
- Helmut Viernstein
- Institute of Pharmaceutical Technology and Biopharmaceutics, University of Vienna, Althanstrasse 14, A-1090, Vienna, Austria.
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48
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He P, Lu H, Guo Y. The Determination of Non-covalent Complexes of Diclofenac Sodium and Cyclodextrins by Electrospray Ionization/Time-of-Flight Mass Spectrometry. ANAL LETT 2003. [DOI: 10.1081/al-120017705] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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