Furthermore, peripheral aromatase expression and activity were shown to be affected by thiacloprid and other neonicotinoids in human H295R adrenocortical carcinoma cells alone (Caron‐Beaudoin et al. 2016) or in coculture models of fetoplacental steroidogenesis of H295R and BeWo cells (Caron‐Beaudoin et al. 2017) by thiacloprid and thiamethoxam, leading to a significant impact on estradiol and estrone production (Caron‐Beaudoin et al. 2018). This evidence concerns the gene CYP19A1 and adrenal cortex carcinoma.