“…29,30 Imbalances between the sympathetic nerve system and the parasympathetic nerve system, emotional and psychogenic factors, and disturbances in life rhythm are associated with onset and worsening of itch. 31,32 Genetic factors. Some genes have been described as candidate genes associated with AD: CTLA4, IL18, TLR9, CD14, CARD4, PHF11, TLR2, SCCE, MCC, IL4R, GM-CSF, TIM1, CARD15, GSTT1, SPINK5, SCYA11, TGFb1, IL-13, RANTES, IL4, and FCER1B 13 .In addition, 2q12 (IL1RL1/IL18R1/IL18RAP), 3q21.33 (GLB1), 3q13.2 (CCDC80), 6p21.3 (MHC region), 7p22 (CARD11), 10q21.2 (ZNF365), 11q15.4 (OR10A3/NLRP10), 20q13 (CYP24A1/PFDN4) have been reported to be an AD-related region based on genome-wide linkage analysis from Japanese samples.…”