Objective: This study evaluated drug delivery systems based on Pectin (P) and Zein (Z) hydrogel microspheres. Piroxicam (Px) loaded P/Z hydrogel microspheres (P/Z HM) were developed, and their extended-release pharmacokinetic properties were evaluated.
Methods: Experiments were executed under three different conditions: in vitro, ex vivo, and in vivo. Then, the in vitro-in vivo correlations (IVIVC) and ex vivo-in vivo correlations (EVIVC) were examined.
Results: Analysis of drug release mechanisms were evaluated by fitting the in vitro data into the Ritger- Peppas equation, showing the contribution of both polymers' relaxation and drug diffusion from the hydrogel microspheres. The fraction absorbed in vivo was determined by the deconvolution of plasma concentration data using the Loo-Riegelman method. After oral single-dose administration of the two formulations, their basic independent model parameters were calculated.
Conclusion: P/Z HM had different drug release behaviors in in vitro and in vivo conditions. However, the ex vivo and in vivo characteristics were similar (R² = 0.99). It seemed reasonable to use the ex vivo method to predict the in vivo drug absorption behavior during the polymeric drug delivery system developmental studies. The P/Z HM formulation maintained the drug dose at the colon site for a long duration and could be applied for delivery of active pharmaceutical and food ingredients to the colon site.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.2174/1567201819666220304092012 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Efficient removal of direct dyes and heavy metal ion by sodium alginate-based hydrogel microspheres: Equilibrium isotherms, kinetics and regeneration performance study.
Int J Biol Macromol
January 2025
Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China; Open Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266100, China; Key Laboratory of Ocean Observation and Information of Hainan Province, Sanya Oceanographic Institution, Ocean University of China, Sanya 572024, China. Electronic address:
Improving the adsorption capacity of materials for pollutants by means of modification is an important direction in the research of water treatment technology. To improve the applicability of sodium alginate composites in the field of adsorption, magnetic sodium alginate-based hydrogel microsphere adsorbent material FeO@SA/PEI-Fe (FSPF) was synthesized in a single step by using polyethyleneimine grafting modification of sodium alginate by sol-gel method. The material was used for the removal of direct blue GL (DB 200) and direct date red B (DR 13) from simulated wastewater, as well as Cu(II) and Pb(II) from simulated wastewater with heavy metal ions.
View Article and Find Full Text PDFSlide-Ring Structured Stress-Electric Coupling Hydrogel Microspheres for Low-Loss Transduction Between Tissues.
Adv Mater
January 2025
Department of Orthopaedics Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China.
High transductive loss at tissue injury sites impedes repair. The high dissipation characteristics in the electromechanical conversion of piezoelectric biomaterials pose a challenge. Therefore, supramolecular engineering and microfluidic technology is utilized to introduce slide-ring polyrotaxane and conductive polypyrrole to construct stress-electric coupling hydrogel microspheres.
View Article and Find Full Text PDFA Polysaccharide-Calcium Carbonate Microsphere-Doped Hydrogel for Accelerated Diabetic Wound Healing via Synergistic Glucose-Responsive Hypoglycemic and Anti-Inflammatory Effects.
ACS Biomater Sci Eng
January 2025
Henan International Joint Laboratory of Medicinal Plants Utilization, College of Chemistry and Molecular Sciences, Henan Key Laboratory of Natural Medicine Innovation and Transformation, State Key Laboratory of Antiviral Drugs, Henan University, Kaifeng 475004, China.
Article Synopsis
- Long-term hyperglycemia and inflammation in diabetes often lead to chronic wounds that do not heal, but a new hydrogel with plant polysaccharides shows promise in promoting healing.
- This hydrogel, PL-PVA/DOP-CaCO, is engineered to release insulin in response to high glucose levels and has anti-inflammatory properties, enhancing the wound healing process.
- In studies, this hydrogel improved healing in diabetic rats by regulating blood sugar, reducing inflammation, and boosting the growth of cells essential for wound recovery.
A Review of Basic Fibroblast Growth Factor Delivery Strategies and Applications in Regenerative Medicine.
J Biomed Mater Res A
January 2025
Department of Pharmacy, Yueqing Third People's Hospital, Wenzhou, China.
Basic fibroblast growth factor (bFGF) is a significant member of the fibroblast growth factor (FGF) family. The bFGF has a three-dimensional structure comprising 12 reverse parallel β-folds. This structure facilitates tissue wound repair, angiogenesis, bone formation, cartilage repair, and nerve regeneration.
View Article and Find Full Text PDFAdvances and challenges in hydrogel microspheres for biomedical applications.
Biomater Transl
September 2024
Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!