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  • Title: [Effect of particle size on oral absorption of silymarin-loaded solid lipid nanoparticles].
    Author: He J, Hou SX, Feng JF, Cai BQ.
    Journal: Zhongguo Zhong Yao Za Zhi; 2005 Nov; 30(21):1651-3. PubMed ID: 16400939.
    Abstract:
    OBJECTIVE: To investigate effect of particle size on oral absorption of silymarin-loaded solid lipid nanoparuicles. METHOD: Solid lipid nanoparticles (SLN) of various sizes (150 nm, 500 nm and 1000 nm) using Compritol 888 ATO as the material and silymarin (SM) as a model drug were prepared. Silybinin concentration in plasma of rats were determined by RP-HPLC with UV detector. The main pharmacokinetic parameters were calculated by 3p97. RESULT: Results showed that the AUC of 150 nm SLN was 2.08 fold that of 500 nm SLN and 2.54 fold of 1000 nm SLN treated orally to rats (P < 0.05). The oral bioavailability of 150 nm SLN was remarkably higher than the other two size SLN. CONCLUSION: This has important implications in designing of SM-SLN as a new oral drug delivery system.
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