TRPA1 and ulcerative colitis: An expression investigation of this ion channel in colony biopsies from pediatric patients suffering from ulcerative colitis had previously shown an upregulation of TRPA1, rationalizing the detrimental effect of the co-administration of CBDV with the TRPA1 inhibitor HC030031, which prevented the activation and then desensitization of the ion channel by CBDV.