Transient Receptor Potential Channels, such as TRPA1 (transient receptor potential cation channel subfamily A member 1) and TRPV1 (transient receptor potential cation channel subfamily V member 1), showed elevated expression in deep infiltrating endometriosis (DIE) samples, indicating their involvement in pain perception and sensory transduction [16]. This evidence concerns the gene TRPA1 and endometriosis.