In a previous study involving 47 patients diagnosed with AMI and 15 healthy controls, significantly elevated levels of serum and salivary hs-TnI were observed in patients with MI compared with healthy individuals.[158] Despite the potential of salivary biomarkers such as TnI, CRP, CK-MB, and Mb in diagnosing AMI, their utilization is still in its infancy. The gene discussed is MB; the disease is myocardial infarction.