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Silymarin-Loaded Eudragit Nanoparticles: Formulation, Characterization, and Hepatoprotective and Toxicity Evaluation
Amira E El-Nahas1, Ahmed N Allam2, Doaa A Abdelmonsif3
1Pharmaceutics Department, Faculty of Pharmacy, Damanhour University, Damanhour, Egypt.
AAPS Pharmscitech
|May 19, 2017
Summary
Silymarin-loaded Eudragit nanoparticles (SNPs) were developed to enhance liver protection. These nanoparticles demonstrated improved hepatoprotective effects and safety in rats compared to existing products.
Area of Science:
- Pharmaceutical Sciences
- Nanotechnology
- Pharmacology
Background:
- Silymarin is a natural compound with known hepatoprotective properties.
- Conventional silymarin formulations may have limitations in bioavailability and efficacy.
- Nanoparticle-based drug delivery systems offer potential for improved therapeutic outcomes.
Purpose of the Study:
- To formulate and characterize silymarin-loaded Eudragit nanoparticles (SNPs).
- To evaluate the in vitro and in vivo hepatoprotective effects of SNPs.
- To assess the in vivo acute cytotoxicity of SNPs.
Main Methods:
- SNPs were prepared using the nanoprecipitation technique.
- Characterization included particle size, entrapment efficiency, TEM, DSC, FT-IR, and in vitro drug release studies.
- Hepatoprotective activity was assessed in carbon tetrachloride (CCl4)-intoxicated rats, and cytotoxicity was evaluated.
Main Results:
- SNPs exhibited optimal characteristics: 84.70 nm particle size, 83.45% entrapment efficiency, and 100% drug release within 12 hours.
- DSC and FT-IR confirmed silymarin's amorphous state within nanoparticles without chemical interaction.
- SNPs demonstrated significantly superior hepatoprotective effects in CCl4-intoxicated rats compared to a marketed product, with no observed toxicity at 50 mg/kg.
Conclusions:
- The developed silymarin-loaded Eudragit nanoparticles (SNPs) are safe and effective.
- SNPs show potential for enhanced pharmacological hepatoprotective properties of silymarin.
- This formulation represents a promising approach for managing liver diseases.
