Figure 2: Mechanisms of PM2·5-mediated metabolic and cardiovascular effects.

ACTH=adrenocorticotropic hormone. AMP=activated molecular patterns. CRH=corticotropin releasing hormone. DAMPs=disease-activated molecular patterns. FA=fatty acids. HETES=hydroxyeicosatetraenoic acids. HODES=hydroxyoctadecadienoates. IFN=interferon. IκB=IκB kinase. MyD88=myeloid differentiation primary response protein 88. NADPH=nicotinamide adenine dinucleotide phosphate. NF-κB=nuclear factor κB. oxPAPC=oxidised phospholipid 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphorylcholine. PAMPs=pathogen. PRRs=pattern recognition receptors. RNS=reactive nitrogen species. ROS=reactive oxygen species. TfR=transferrin receptor. TLR=toll-like receptors.