Moreover, ginger extract containing 5% 6-gingerol (Dongare et al., 2016), ethanol extract of Scutellaria barbata D. Don (Mei et al., 2017), polysaccharides of Dendrobium candidum (Li et al., 2016), catalpol (Wu and Du, 2021), and curcumolide (Dong et al., 2015) have shown significant effects in alleviating retinal inflammation in diabetes through a mechanism related to the inhibition of the NF-κB signaling pathway. This evidence concerns the gene NFKB1 and diabetes mellitus.