Qvarnstrom et al. suggested in a study with 500 participants that the top quartile of salivary lysozyme levels is significantly associated with prevalent hypertension [63]; similar findings were described in 259 humans by Labat et al. [64] A complementary trend has already been described for salivary lysozyme and coronary heart disease. The gene discussed is LYZ; the disease is coronary artery disorder.