{"title":"Inclusion complex of cyclodextrin with ergotamine and evaluation of cyclodextrin-based nanosponges","authors":"Preeti Dali, Pravin Shende","doi":"10.1007/s10847-022-01149-y","DOIUrl":null,"url":null,"abstract":"<div><h3>Purpose</h3><p>The anti-migraine drugs show first-pass metabolism, short half-life, and low bioavailability resulting in repeated dose or overdose effect. Polymeric, biodegradable and highly porous nanosponges emerge as a promising carrier for migraine treatment to improve aqueous solubility, stability and bioavailability.</p><h3>Method</h3><p>Ergotamine nanosponges prepared by interfacial polymerization method wherein hydroxypropyl beta-cyclodextrin inclusion complex was crosslinked using toluene diisocyanate. Caffeine used as a permeation enhancer for ergotamine by forming soluble molecular complex with cyclodextrin moiety of nanosponges. Further, nanosponges were characterized for particle size, zeta potential, entrapment efficiency, percentage drug release profile, antioxidant activity, photostability and instrumental analytical studies.</p><h3>Results</h3><p>Caffeine significantly improved the permeation of ergotamine nanosponges. The particle size for optimized nanosponges was 693.5 ± 11.7 nm, zeta potential of − 19.4 ± 5.69 mV with high colloidal stability and maximum entrapment efficiency of 98.88 ± 2.8%. In-vitro and ex-vivo studies exhibited controlled release profiles of ergotamine 81.6% ± 3.4% and 79% ± 4.2% for 24 h, respectively. Nanosponges demonstrated higher antioxidant activity 85.68% ± 1.23% whereas photostability data showed no significant decrease in drug content indicating good stability. Fourier transform infrared spectroscopy confirmed significant interaction of ergotamine with cyclodextrin-based nanosponges.</p><h3>Conclusion</h3><p>Nanosponges showed improvement in bioavailability of ergotamine and long-term stability offering inexpensive, productive and safe alternative for migraine.</p><h3>Graphical abstract</h3>\n <figure><div><div><div><picture><source><img></source></picture></div></div></div></figure>\n </div>","PeriodicalId":54324,"journal":{"name":"Journal of Inclusion Phenomena and Macrocyclic Chemistry","volume":"102 7-8","pages":"669 - 682"},"PeriodicalIF":1.7000,"publicationDate":"2022-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Inclusion Phenomena and Macrocyclic Chemistry","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s10847-022-01149-y","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 2
Abstract
Purpose
The anti-migraine drugs show first-pass metabolism, short half-life, and low bioavailability resulting in repeated dose or overdose effect. Polymeric, biodegradable and highly porous nanosponges emerge as a promising carrier for migraine treatment to improve aqueous solubility, stability and bioavailability.
Method
Ergotamine nanosponges prepared by interfacial polymerization method wherein hydroxypropyl beta-cyclodextrin inclusion complex was crosslinked using toluene diisocyanate. Caffeine used as a permeation enhancer for ergotamine by forming soluble molecular complex with cyclodextrin moiety of nanosponges. Further, nanosponges were characterized for particle size, zeta potential, entrapment efficiency, percentage drug release profile, antioxidant activity, photostability and instrumental analytical studies.
Results
Caffeine significantly improved the permeation of ergotamine nanosponges. The particle size for optimized nanosponges was 693.5 ± 11.7 nm, zeta potential of − 19.4 ± 5.69 mV with high colloidal stability and maximum entrapment efficiency of 98.88 ± 2.8%. In-vitro and ex-vivo studies exhibited controlled release profiles of ergotamine 81.6% ± 3.4% and 79% ± 4.2% for 24 h, respectively. Nanosponges demonstrated higher antioxidant activity 85.68% ± 1.23% whereas photostability data showed no significant decrease in drug content indicating good stability. Fourier transform infrared spectroscopy confirmed significant interaction of ergotamine with cyclodextrin-based nanosponges.
Conclusion
Nanosponges showed improvement in bioavailability of ergotamine and long-term stability offering inexpensive, productive and safe alternative for migraine.
期刊介绍：
The Journal of Inclusion Phenomena and Macrocyclic Chemistry is the premier interdisciplinary publication reporting on original research into all aspects of host-guest systems. Examples of specific areas of interest are: the preparation and characterization of new hosts and new host-guest systems, especially those involving macrocyclic ligands; crystallographic, spectroscopic, thermodynamic and theoretical studies; applications in chromatography and inclusion polymerization; enzyme modelling; molecular recognition and catalysis by inclusion compounds; intercalates in biological and non-biological systems, cyclodextrin complexes and their applications in the agriculture, flavoring, food and pharmaceutical industries; synthesis, characterization and applications of zeolites.
The journal publishes primarily reports of original research and preliminary communications, provided the latter represent a significant advance in the understanding of inclusion science. Critical reviews dealing with recent advances in the field are a periodic feature of the journal.
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