Fig. 4From: Food-grade titanium dioxide and zinc oxide nanoparticles induce toxicity and cardiac damage after oral exposure in ratsNanoparticles did not induce the secretion of inflammatory proteins. Serum levels of IL-6, IL-1β and TNF-α (pg/mL) were quantified by ELISA at the end of the study. Mean ± SD of four rats is shownBack to article page