Given the increase in ROS upon FA treatment and vast accumulation of lipid droplets in cytoplasmic region, the formation of reactive lipid peroxidation products (oxoLPP) was further evaluated using carbonyl-specific chemical probe (CHH) and fluorescence microscopy (Fig. 3B). OxoLPP-specific fluorescence intensity was significantly higher in both FA and FA/CoCl2 treated cells, whereas CoCl2 alone only slightly increased the signal in comparison to control. OxoLPP-specific fluorescence signals were localized in the cytoplasm, including the perinuclear space. Interestingly, intra-nuclear space did not show any significant increase in oxoLPP.