and hypertension in rural and urban Cameroon. Int J Epidemiol 33:769–776. Stiller‑Winkler R, Krämer U, Fiedler E, Ewers U, Dolgner R. 1989. C3c concentrations in sera of persons living in areas with different levels of air pollution in Northrhine‑ Westphalia (Federal Republic of Germany). Environ Res 49:7–19. Strunk RC, Eidlen DM, Mason RJ. 1988. Pulmonary alveolar type II cells synthesize and secrete proteins of the classical and alternative complement pathways. J Clin Invest 81:1419–1426. Sun Q, Yue P, Deiuliis JA, Lumeng CN, Kampfrath T, Mikolaj MB, et al. 2009. Ambient air pollution exaggerates adipose inflammation and insulin resistance in a mouse model of diet‑induced obesity. Circulation 119:538–546. Walters DM, Breysse PN, Schofield B, Wills‑ Karp M. 2002. Complement factor 3 mediates particulate matter‑induced airway hyperresponsiveness. Am J Respir Cell Mol Biol 27:413–418. Whitsel EA, Quibrera PM, Christ SL, Liao D, Prineas RJ, Air pollution and type 2 diabetes Anderson G, et al. 2009. Heart rate variability, ambient par‑ ticulate matter air pollution, and glucose homeostasis: the environmental epidemiology of arrhythmogenesis in the women’s health initiative. Am J Epidemiol 169:693–703. Younger, M, Morrow‑Almeida HR, Vindigni SM, Dannenberg AL. 2008. The built environment, climate change, and health: opportunities for cobenefits. Am J Prev Med 35:517–526. Environmental Health Perspectives • volume 118 | number 9 | September 2010 1279