Recent studies have shown the value of salivary CRP as a confirmatory biomarker of acute myocardial infarction as well as a predictive biomarker of acute lung inflammation in chronic lung disease patients.[57, 64] Nevertheless, CRP is presented in saliva at concentration values at least one thousand times lower than CRP measured in the blood, making its detection in saliva challenging. The gene discussed is CRP; the disease is myocardial infarction.