1 TNFα Mechanically Sensitizes Masseter Muscle Nociceptors by 2 Increasing Prostaglandin E2 Levels. 3 4 5 Akhlaq W. Hakim, Xudong Dong, Brian E. Cairns 6 7 Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, British Columbia, 8 V6T 1Z3, Canada 9 10 11 12 13 14 Running title: TNFα-induced nociceptor sensitization 15 16 17 18 19 20 Correspondence should be addressed...