I'd like to know more about the potential for lipid nanoparticles to cross the BBB [1], and therefore consideration of long-term effects of mRNA and resulting p

I'd like to know more about the potential for lipid nanoparticles to cross the BBB [1], and therefore consideration of long-term effects of mRNA and resulting proteins in brain cells. Am I alone in this concern? [1] https://pubmed.ncbi.nlm.nih.gov/29886842/ https://pubmed.ncbi.nlm.nih.gov/29886842/