Analysis of glycerophospholipid metabolism showed that PG (16:0_20:2) was significantly and positively correlated with glycerophospholipid synthesis-related genes PCYT1A, PGS1 and LPIN1, suggesting that this metabolite plays an important role in regulating lipid metabolism disorders induced by Cd exposure (Figure 6B). The gene discussed is LPIN1; the disease is Disorder of lipid metabolism.