Yesterday, Cheap Talk contributor and Northwestern University economics professor Jeffrey Ely posed an excellent question to me: Suppose you had a choice between only two policies: A) grotesque pictures or B) increased per-pack taxes calculated to generate exactly the same reduction in demand

7, 8, 16 Nicotine, an anti-inflammatory alkaloid, activates the nicotine receptor 7 (7-nAChR) in immune cells, suppresses the production of pro-inflammatory cytokines, and facilitates the production of anti-inflammatory cytokines.17, 18, 19 The nAChR is also present in endothelial cells, where nicotine suppresses the molecules needed for immune cell migration in IBD.20 After smoking cessation, the activity of nAChR fluctuates, which may dysregulate the immune system, making ex-smokers more prone to the development of UC.21 Nicotine affects the number of nAChRs differently in adolescents compared to adults, contributing to the increase of UC risk in young ex-smokers.22 Moreover, cigarette smoke contains nicotine and other substances, such as carbon monoxide, nitrogen oxides, and cadmium, that influence the immune system.23 Sex-dependent differences in UC according to smoking experience have been previously reported
doi: 10.1080/08035250500452621 34
As an aside, my friend Jacob Trefethen says there are likely multiple reasons for slow hepatitis C vaccine development
[32] [33] [nb 1] Other [edit] Other causes of peptic ulcer disease include gastric ischaemia, drugs, metabolic disturbances, cytomegalovirus (CMV), upper abdominal radiotherapy, Crohn's disease, and vasculitis