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Nutraceutically-enhanced oral delivery of vitamin D3 via Bio-SNEDDS: Demonstrating in vivo superiority over pediatric formulations.
Biochemical and Biophysical Research Communications 2024 March 29
BACKGROUND: Vitamin D3 (VD3) deficiency among children in Saudi Arabia remains a pressing concern due to its poor bioavailability and the limitations of current pediatric formulations. To address this challenge, we developed a groundbreaking pediatric self-nanoemulsifying drug delivery system (Bio-SNEDDS) for VD3, fortified with black seed oil and moringa seed oil for dual therapeutic benefits. Through meticulous formulation optimization using ternary phase diagrams and comprehensive testing, our Bio-SNEDDS demonstrated exceptional performance.
METHODS: Bio-SNEDDS were manufactured by incorporating Black seed oil and moringa seed oil as bioactive nutraceutical excipients along with various cosurfactant and surfactants. Bio-SNEDDS were systematically optimized through ternary phase diagrams, visual tests, droplet size analysis, drug solubilization studies, dispersion assessments, and pharmacokinetic testing in rats compared to Vi-De 3®.
RESULTS: Pseudoternary phase diagrams identified oil blends producing large nanoemulsion regions optimal for SNEDDS formation. The optimized F1 Bio-SNEDDS showed a mean droplet diameter of 33.7 nm, solubilized 154.46 mg/g VD3 with no metabolite formation, and maintained >88% VD3 in solution during 24 h dispersion testing. Notably, in vivo pharmacokinetic evaluation at a high VD3 dose demonstrated an approximately two-fold greater relative bioavailability over Vi-De 3®, validating the superb oral delivery performance of Bio-SNEDDS even under challenging high-dose conditions.
CONCLUSIONS: The Bio-SNEDDS provides an effective VD3 delivery strategy with established in vivo superiority over marketed products, along with offering additional health benefits from the natural oils.
METHODS: Bio-SNEDDS were manufactured by incorporating Black seed oil and moringa seed oil as bioactive nutraceutical excipients along with various cosurfactant and surfactants. Bio-SNEDDS were systematically optimized through ternary phase diagrams, visual tests, droplet size analysis, drug solubilization studies, dispersion assessments, and pharmacokinetic testing in rats compared to Vi-De 3®.
RESULTS: Pseudoternary phase diagrams identified oil blends producing large nanoemulsion regions optimal for SNEDDS formation. The optimized F1 Bio-SNEDDS showed a mean droplet diameter of 33.7 nm, solubilized 154.46 mg/g VD3 with no metabolite formation, and maintained >88% VD3 in solution during 24 h dispersion testing. Notably, in vivo pharmacokinetic evaluation at a high VD3 dose demonstrated an approximately two-fold greater relative bioavailability over Vi-De 3®, validating the superb oral delivery performance of Bio-SNEDDS even under challenging high-dose conditions.
CONCLUSIONS: The Bio-SNEDDS provides an effective VD3 delivery strategy with established in vivo superiority over marketed products, along with offering additional health benefits from the natural oils.
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