The mean BNP level at the time of hospitalization was 40.4 pg/mL among patients with large-artery atherosclerotic stroke, 40.4 pg/mL among patients with lacunar infarction, 226.9 pg/mL among patients with cardioembolic stroke, and 58.5 pg/mL among patients with cerebral infarction of other determined and undetermined etiologies (patient background data are summarized in Table 1). The gene discussed is NPPB; the disease is brain infarction.