Mucoadhesive Nanoparticles Disrupt Mucus Barrier
Author Information
Author(s): Wang Ying-Ying, Lai Samuel K., So Conan, Schneider Craig, Cone Richard, Hanes Justin
Primary Institution: Johns Hopkins University
Hypothesis
Excess exposure to some foreign particles may cause disruption of the mucus barrier.
Conclusion
Mucoadhesive nanoparticles can significantly alter the microstructure of mucus, potentially increasing exposure to foreign particles.
Supporting Evidence
- A 0.24% w/v concentration of 200 nm MAP in mucus induced a ∼10-fold increase in the average effective diffusivity of probe particles.
- The average pore size of mucus increased significantly from 380 nm to 470 nm after MAP exposure.
- Five out of six independent samples showed an increase in probe particle effective diffusivity upon exposure to MAP.
Takeaway
Tiny particles can change the structure of mucus, making it easier for other things to get through it.
Methodology
The study used muco-inert probe particles to measure changes in the microstructure of human cervicovaginal mucus after exposure to mucoadhesive nanoparticles.
Potential Biases
Potential bias due to the small sample size and variability in mucus samples.
Limitations
The study's findings may vary due to differences in mucus composition from different donors and menstrual cycle phases.
Participant Demographics
Women of reproductive age (18 to 27 years old) with healthy vaginal micro-flora.
Statistical Information
P-Value
0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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