Figure 2.
Synergistic effects of acetylcholine (ACH) and cigarette smoke on M1, M2, and M3 receptors. LTB4: leukotriene B4, PKC: protein kinase C, NFκB: nuclear factor kappaB, and IκB: inhibitor of NFκB.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.