Fig. 4From: Sex affects the response of Wistar rats to polyvinyl pyrrolidone (PVP)-coated silver nanoparticles in an oral 28 days repeated dose toxicity studymRNA expression of Mt genes. a Mt1a and Mt2a in the liver and b Mt1a, Mt2a, and Mt3 in kidneys of male (gray columns) and female (white columns)) rats after administration of LD and HD of PVP-AgNPs. mRNA expression levels are presented as relative values compared to control samples. Error bars: SD. *p < 0.05 between controls (Ctl) and treated animals and §p < 0.05 between males and femalesBack to article page