Research trends of ferroptosis and pyroptosis in depression: A bibliometric analysis

Figure 9 Keyword co-occurrence networks and keyword-cluster analyses in ferroptosis- and pyroptosis-related depression research. A: Keyword co-occurrence network of ferroptosis-related depression research; B: Keyword co-occurrence network of pyroptosis-related depression research; C: Keyword-cluster analysis of ferroptosis-related depression research; D: Keyword-cluster analysis of pyroptosis-related depression research. In panels A and B, each node represents a keyword, the node size is proportional to keyword frequency, links indicate co-occurrence relationships, and different colors represent distinct keyword clusters. In panels C and D, the labeled clusters represent major thematic groups identified using CiteSpace; different colors and shaded areas indicate distinct clusters.