If you put it into google translate, the abstract contains the following:
"In the biodistribution test, luciferase RNA-encapsulated LNP was intramuscularly administered to BALB / c mice. theAs a result, the expression of luciferase was observed at the administration site, and the expression level was lower than that in the liver.Was also recognized. Expression at the administration site of luciferase was observed from 6 hours after administration, and 9 days after administration.Disappeared. Expression in the liver was also observed 6 hours after administration and disappeared by 48 hours after administration. Also,Intramuscular administration of radiolabeled LNP encapsulating luciferase RNA to rats to quantify biodistributionUpon evaluation, the radioactivity concentration was the highest at the administration site. Liver is highest except at the administration siteIt was good (up to 18% of the dose)."
Another translation (via DeepL) of the first part of the same paragraph:
In the biodistribution study, luciferase RNA-encapsulated LNP was administered intramuscularly to BALB/c mice, and the expression of luciferase was observed at the site of administration, and also in the liver, although at a lower level. The expression of luciferase at the site of administration was observed from 6 hours post-dose and disappeared by 9 days post-dose. The luciferase was also observed in the liver at 6 hours post-dose and disappeared by 48 hours post-dose.
Does this mean that they tracked the actual distribution of the vaccine in the body of the rats, or was it just a study of the lipid byproducts?