“…Much work on the neuropathology of SIDS has focused on the role of brainstem serotonin signaling (Haynes et al, ; Kinney, Richerson, Dymecki, Darnall, & Nattie, ), and the link to chemosensation (Buchanan, Smith, MacAskill, & Richerson, ; Ray et al, ), the hypoxic response of the respiratory network (J. M. Ramirez, Folkow, & Blix, ; S. Ramirez et al, ; Tryba, Pena, & Ramirez, ), and arousal (Buchanan & Richerson, ; Iwasaki et al, ; Mateika, Komnenov, Pop, & Kuhn, ). Yet many aspects of cardiorespiratory control also depend on cholinergic mechanisms, and are altered by nicotine exposure (Cerpa et al, ; Shao & Feldman, ; Vivekanandarajah, Waters, & Machaalani, ), including the respiratory chemosensory response (Coddou, Bravo, & Eugenin, ; Eugenin et al, ), and multiple aspects of upper airway control (Cholanian, Powell, Levine, & Fregosi, ; Cholanian, Wealing, Levine, & Fregosi, ; Powell, Levine, Frazier, & Fregosi, ; Wollman, Levine, & Fregosi, ). Chat‐Vglut2 tdT expression identifies two known groups of cholinergic/glutamatergic neurons in the medulla, located in IRt and RVLM.…”