The chymase (34.05 +/− 0.209 versus 24.30 +/− 3.438 versus 32.10 +/− 0.823), tryptase (19.79 +/− 1.983 versus 20.74 +/− 6.083 versus 19.33 +/− 3.231), IL-4 (68.66 +/− 6.653 versus 71.50 +/− 20.219 versus 66.98 +/− 10.850), and TNFα (57.26 +/− 1.263 versus 63.57 +/− 3.318 versus 62.11 +/− 2.558) levels were similar in BP and DH patients, as well as healthy controls, (Figure 1). The gene discussed is IL4; the disease is dermatitis herpetiformis, familial.