The green cluster included keywords related to transient receptor potential channels activated by vanilloid chemicals and metabolism dysfunction in cells or the body, such as “TRPV1,” “capsaicin,” “obesity,” “diabetes,” “apoptosis,” “oxidative stress,” “TRPA1,” “cardiomyocytes,” and “metabolic syndrome.” This may suggest that TRPV1 affects metabolism through apoptosis. Here, TRPV1 is linked to obesity due to melanocortin 4 receptor deficiency.