The observed differentiations of the lysozyme values might be the result of factors such as those that follow: mucosal damage as a complication of oral cGvHD (an increase of the values); chronic stress (a decrease of the values) [47]; some drugs, e.g., antifungal ones (a decrease of the values) [48]; some accompanying disease, e.g., hypertension (an increase of the values) [48]. The gene discussed is LYZ; the disease is Hypertension.