AHR and Obesity: The effects of other potential AhR ligands (or mixtures containing AhR ligands) such as polychlorinated biphenyls (Wahlang et al. 2013, 2014; Shan et al. 2015), cigarette smoke (Mallat and Lotersztajn 2009), and diesel particles (Arciello et al. 2013) have been tested on different mouse models of obesity.