Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
NO2Tyr induces barrier dysfunction in A549 epithelial cells. Barrier function was assessed by the permeability of confluent cells to [125I]BSA as described in Methods. The percentage of NO2Tyr relative to tyrosine in the medium was 0%, 12%, 25%, 62%, 125%, 187%, and 250%. Values are expressed as the percentage of increase over control cells (basal medium) and represent the mean ± SD of four separate experiments.
