Increased intracellular cyclic adenosine 3′,5′-monophosphate inhibits release of TNF-α from human vascular tissue and cultured smooth muscle cells. - Zhang ,L.M,.; Castresana ,M.R,.; Shaker ,I.J,.; Dalton ,M.L,.; Leeper-Woodford ,S.K,.; Newman ,W.H.. (Critical Care Med., 1997)