1
|
Chen Z, Gao W, Feng X, Zhou G, Zhang M, Zeng L, Hu X, Liu Z, Song H. A comparative study on the preparation and evaluation of solubilizing systems for silymarin. Drug Deliv Transl Res 2024; 14:1616-1634. [PMID: 37964172 DOI: 10.1007/s13346-023-01476-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/03/2023] [Indexed: 11/16/2023]
Abstract
Silymarin (SM) exhibits clinical efficacy in treating liver injuries, cirrhosis, and chronic hepatitis. However, its limited water solubility and low bioavailability hinder its therapeutic potential. The primary objective of this study was to compare the in vitro and in vivo characteristics of the four distinct SM solubilization systems, namely SM solid dispersion (SM-SD), SM phospholipid complex (SM-PC), SM sulfobutyl ether-β-cyclodextrin inclusion complex (SM-SBE-β-CDIC) and SM self-microemulsifying drug delivery system (SM-SMEDDS) to provide further insights into their potential for enhancing the solubility and bioavailability of SM. The formation of SM-SD, SM-PC, and SM-SBE-β-CDIC was thoroughly characterized using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and powder X-ray diffractometry (PXRD) techniques to analyze the changes in their microscopic structure, molecular structure, and crystalline state. The particle size and polydispersity index (PDI) of SM-SMEDDS were 71.6 ± 1.57 nm, and 0.13 ± 0.03, respectively. The self-emulsifying time of SM-SMEDDS was 3.0 ± 0.3 min. SM-SMEDDS exhibited an improved in vitro dissolution rate and demonstrated the highest relative bioavailability compared to pure SM, SM-SD, SM-PC, SM-SBE-β-CDIC, and Legalon®. Consequently, SMEDDS shows promise as a drug delivery system for orally administered SM, offering enhanced solubility and bioavailability.
Collapse
Affiliation(s)
- Zhenzhen Chen
- Department of Pharmacy, Fuzong Clinical Medical College of Fujian Medical University (900 Hospital of the Joint Logistics Team), Fuzhou, 350025, PR China
| | - Wenhao Gao
- Department of Pharmacy, Fuzong Clinical Medical College of Fujian Medical University (900 Hospital of the Joint Logistics Team), Fuzhou, 350025, PR China
| | - Xianquan Feng
- Department of Pharmacy, Fuzong Clinical Medical College of Fujian Medical University (900 Hospital of the Joint Logistics Team), Fuzhou, 350025, PR China
| | - Guizhi Zhou
- Department of Pharmacy, Fuzong Clinical Medical College of Fujian Medical University (900 Hospital of the Joint Logistics Team), Fuzhou, 350025, PR China
- School of Pharmacy, Fujian University of Chinese Traditional Medicine, Fuzhou, 350108, China
| | - Minxin Zhang
- Department of Pharmacy, Fuzong Clinical Medical College of Fujian Medical University (900 Hospital of the Joint Logistics Team), Fuzhou, 350025, PR China
| | - Lingjun Zeng
- Department of Pharmacy, Fuzong Clinical Medical College of Fujian Medical University (900 Hospital of the Joint Logistics Team), Fuzhou, 350025, PR China
| | - Xiaomu Hu
- Department of Pharmacy, Fuzong Clinical Medical College of Fujian Medical University (900 Hospital of the Joint Logistics Team), Fuzhou, 350025, PR China
| | - Zhihong Liu
- Department of Pharmacy, Fuzong Clinical Medical College of Fujian Medical University (900 Hospital of the Joint Logistics Team), Fuzhou, 350025, PR China.
| | - Hongtao Song
- Department of Pharmacy, Fuzong Clinical Medical College of Fujian Medical University (900 Hospital of the Joint Logistics Team), Fuzhou, 350025, PR China.
| |
Collapse
|
2
|
Liu B, Li C, Chen Z, Ou X, Li S, Li A, Chen P, Lu M. Molecular insights into the formation of drug-polymer inclusion complex. Int J Pharm 2024; 652:123761. [PMID: 38184024 DOI: 10.1016/j.ijpharm.2023.123761] [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: 11/17/2023] [Revised: 12/19/2023] [Accepted: 12/30/2023] [Indexed: 01/08/2024]
Abstract
Drug-polymer inclusion complex (IC) has been viewed as a novel solid form of drugs for property modification. Nonetheless, our understanding of the formation mechanism remains limited. This work aims to provide insight into the molecular processes governing the structural construction of carbamazepine (CBZ) and griseofulvin (GSF) channel-type ICs in the presence of guest polymers. Leveraging microdroplet melt crystallization, we successfully unveiled the single-crystal structures of these ICs, enabling structural analysis, density functional theory calculations, and molecular dynamics simulations. The results collectively elucidate the disparity between CBZ and GSF channels in terms of their autonomy in the absence of guest polymers. CBZ molecules can spontaneously assemble into stable channel structures independently, capitalizing on their unique mortise-tenon architecture and robust π…π interactions. Conversely, GSF channels lack sufficient support from weak Cl…O and C-H…π intermolecular interactions and necessitate the insertion of guest molecules to stabilize their structures. We further calculated the eleven structurally determined drug-polymer ICs and found that their channel sizes consistently fall within a narrow range of 3.81-5.18 Å although they adopt diverse approaches to construct channel structures. We anticipate that these findings will inspire continued exploration of this novel solid form, facilitating theoretical predictions and practical applications in pharmaceutical development.
Collapse
Affiliation(s)
- Binbin Liu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Changrui Li
- Guangzhou Zhixin High School, 152 Zhixin South Road, Guangzhou 510080, China
| | - Ziqiao Chen
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Xiao Ou
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Shuting Li
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Ao Li
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Pin Chen
- National Supercomputer Center in Guangzhou, School of Computer Science and Engineering, Sun Yat-sen University, Guangzhou 510006, China.
| | - Ming Lu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China.
| |
Collapse
|
3
|
Gong Y, Liu P. A Novel Magnetic β-Cyclodextrin-Modified Graphene Oxide and Chitosan Composite as an Adsorbent for Trace Extraction of Four Bisphenol Pollutants from Environmental Water Samples and Food Samples. Molecules 2024; 29:867. [PMID: 38398619 PMCID: PMC10893499 DOI: 10.3390/molecules29040867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Revised: 02/06/2024] [Accepted: 02/13/2024] [Indexed: 02/25/2024] Open
Abstract
In this study, a novel functionalized magnetic composite (MNCGC) for magnetic solid-phase extraction of bisphenols from environmental and food samples was developed, featuring a multistep synthesis with Fe3O4, chitosan, graphene oxide, and β-cyclodextrin, crosslinked by glutaraldehyde. Characterization confirmed its advantageous morphology, intact crystal structure of the magnetic core, specific surface area, and magnetization, enabling efficient adsorption and separation via an external magnetic field. The optimized MSPE-HPLC-FLD method demonstrated excellent sensitivity, linearity, and recovery rates exceeding 80% for bisphenol pollutants, validating the method's effectiveness in enriching and detecting trace levels of bisphenols in complex matrices. This approach offers a new avenue for analyzing multiple bisphenol residues, with successful application to environmental water and food samples, showing high recovery rates.
Collapse
Affiliation(s)
- Yichao Gong
- School of Eco-Environment, Hebei University, Baoding 071000, China
- College of Chemical Engineering and Biotechnology, Xingtai University, Xingtai 054001, China
| | - Pengyan Liu
- School of Eco-Environment, Hebei University, Baoding 071000, China
| |
Collapse
|