All-Trans Retinoic Acid Modulates TLR4/NF-κB Signaling Pathway Targeting TNF-α and Nitric Oxide Synthase 2 Expression in Colonic Mucosa during Ulcerative Colitis and Colitis Associated Cancer. - Rafa H; Benkhelifa S; AitYounes S; Saoula H; Belhadef S; Belkhelfa M; Boukercha A; Toumi R; Soufli I; Moralès O; de Launoit Y; Mahfouf H; et al. (Mediators of inflammation, 2017)