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Xin W, Wang Y, Bian Y, Lin J, Weng W, Zhao X, Gou K, Guo X, Li H. Facile synthesis of PEI-based crystalline templated mesoporous silica with molecular chirality for improved oral delivery of the poorly water-soluble drug. Drug Deliv 2021; 28:894-905. [PMID: 33960251 PMCID: PMC8118497 DOI: 10.1080/10717544.2021.1912212] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The aim of this study was to build up a novel chiral mesoporous silica called PEIs@TA-CMS through a facile biomimetic strategy and to explore its potential to serve as a drug carrier for improving the delivery efficiency of poorly water-soluble drug. PEIs@TA-CMS was synthesized by using a chiral crystalline complex associated of tartaric acid and polyethyleneimine (PEIs) as templates, scaffolds and catalysts. The structural features including morphology, size, pore structure and texture properties were systematacially studied. The results showed that PEIs@TA-CMS was monodispersed spherical nanoparticles in a uniformed diameter of 120–130 nm with well-developed pore structure (SBET: 1009.94 m2/g, pore size <2.21 nm). Then PEIs@TA-CMS was employed as nimodipine (NMP) carrier and compared with the drug carry ability of MCM41. After drug loading, NMP was effectively transformed from the crystalline state to an amorphous state due to the space confinement in mesopores. As expected, PEIs@TA-CMS had superiority in both drug loading and drug release compared to MCM41. It could incorporate NMP with high efficiency, and the dissolution-promoting effect of PEIs@TA-CMS was more obvious because of the unique interconnected curved pore channels. Meanwhile, PEIs@TA-CMS could significantly improve the oral adsorption of NMP to a satisfactory level, which showed approximately 3.26-fold higher in bioavailability, and could effectively prolong the survival time of mice on cerebral anoxia from 10.98 to 17.33 min.
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Affiliation(s)
- Wei Xin
- School of Pharmacy, China Medical University, Shenyang, China.,The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Yumei Wang
- School of Pharmacy, China Medical University, Shenyang, China.,School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Yan Bian
- School of Pharmacy, China Medical University, Shenyang, China
| | - Jiahui Lin
- School of Pharmacy, China Medical University, Shenyang, China
| | - Wenhao Weng
- School of Pharmacy, China Medical University, Shenyang, China
| | - Xinyi Zhao
- School of Pharmacy, China Medical University, Shenyang, China
| | - Kaijun Gou
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Xianmou Guo
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Heran Li
- School of Pharmacy, China Medical University, Shenyang, China.,School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
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Ye LX, Xu Y, Zhang SH, Cao DX, Chen LF, Su YP, Huang HH, Yu CX. Orally Administered Koumine Persists Longer in the Plasma of Aged Rats Than That of Adult Rats as Assessed by Ultra-Performance Liquid Chromatography-Tandem Mass Spectrometry. Front Pharmacol 2020; 11:1113. [PMID: 32792950 PMCID: PMC7385321 DOI: 10.3389/fphar.2020.01113] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 07/08/2020] [Indexed: 12/28/2022] Open
Abstract
Aging leads to changes in nearly all pharmacokinetic phases. Koumine (KM), an alkaloid derived from Gelsemium elegans Benth., is effective against age-associated chronic diseases, but its dose proportionality following oral administration in aged individuals remains unknown. Herein, we established and validated a simple method that requires low sample volumes to determine KM concentration in rats using ultra-performance liquid chromatography-tandem mass spectrometry. The maximum plasma concentration (Cmax) of 7 mg·kg−1 KM was ~12-fold and ~24-fold higher than that of 0.28 mg·kg−1 KM in adult and aged rats, respectively (P < 0.01). Time to reach Cmax (Tmax) for 7 mg·kg−1 KM was 4-fold longer in aged rats (P < 0.05). The area under the curve (AUC) of 7 mg·kg−1 KM was >17-fold and >43-fold higher than those of 0.28 mg·kg−1 KM in adult and aged rats, respectively (P < 0.01). The half-life (t1/2) of 7 mg·kg−1 KM was over 4-fold longer than that of 0.28 mg·kg−1 KM in adult rats (P < 0.01). The t1/2 of 1.4 and 7 mg·kg−1 KM were 1.5~2-fold longer, than that of 0.28 mg·kg−1 KM in aged rats (P < 0.05). The clearance rate of 7 mg·kg−1 KM was significantly lower in aged than in adult rats (P < 0.05). For 7.0 mg·kg−1 KM, the Cmax in aged rats was higher than in adult rats during the Tmax period (P < 0.05). In aged rats, the AUC for KM was >2.5-fold higher (P < 0.05) and the t1/2 was >60% longer than in adult rats (P < 0.05). These results help interpret the pharmacokinetics of KM in aging-associated diseases.
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Affiliation(s)
- Li-Xiang Ye
- Fujian Center for Safety Evaluation of New Drug, Fujian Medical University, Fuzhou, China
| | - Ying Xu
- Department of Pharmacology, College of Pharmacy, Fujian Medical University, Fuzhou, China
| | - Shui-Hua Zhang
- Fujian Center for Safety Evaluation of New Drug, Fujian Medical University, Fuzhou, China
| | - Da-Xuan Cao
- Fujian Center for Safety Evaluation of New Drug, Fujian Medical University, Fuzhou, China
| | - Ling-Fan Chen
- Fujian Center for Safety Evaluation of New Drug, Fujian Medical University, Fuzhou, China
| | - Yan-Ping Su
- Department of Pharmacology, College of Pharmacy, Fujian Medical University, Fuzhou, China
| | - Hui-Hui Huang
- Department of Pharmacology, College of Pharmacy, Fujian Medical University, Fuzhou, China
| | - Chang-Xi Yu
- Department of Pharmacology, College of Pharmacy, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Natural Medicine Pharmacology, College of Pharmacy, Fujian Medical University, Fuzhou, China.,Fujian Key Laboratory of Drug Target Discovery and Structural and Functional Research, College of Pharmacy, Fujian Medical University, Fuzhou, China
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Biomimetic synthesis and evaluation of histidine-derivative templated chiral mesoporous silica for improved oral delivery of the poorly water-soluble drug, nimodipine. Eur J Pharm Sci 2018. [DOI: 10.1016/j.ejps.2018.03.013] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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