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. 2022 Aug 23;13:963032. doi: 10.3389/fphar.2022.963032

TABLE 5.

Top 20 keywords with most frequent occurrence.

Keyword Occurrence Total link strength
Curcumin 58 242
NF-κB 35 177
Cancer 17 88
In vitro 16 53
Gene expression 15 77
Apoptosis 12 48
Down-regulation 12 67
Inflammation 11 56
Chemopreventive agent 9 45
Nitric oxide synthase 9 50
Antioxidant 8 30
I clinical trial 8 44
Inhibition 8 32
Oxidative stress 8 29
Tumor promotion 8 29
Tumor necrosis factor 8 43
Activation 7 23
Bioavailability 7 32
Expression 7 29
Lipid peroxidation 7 28