The expression of NLRP3 was further confirmed in primary gastric epithelial cells isolated from the SO or PHT groups that received PX‐478 treatment and those that did not receive PX‐478 treatment, and fluorescence labelling and flow cytometry analysis revealed that PX‐478 decreased the proportion of NLRP3‐positive cells in the PHT group (Figure 9C). The gene discussed is NLRP3; the disease is pulmonary hypertension, primary, 1.