Insights into the molecular antimicrobial properties of ferulic acid against Helicobacter pylori.

This article focuses on the antimicrobial effects and molecular mechanisms of ferulic acid, a natural plant-derived compound, against Helicobacter pylori, a bacterium implicated in gastric diseases. The study demonstrates that ferulic acid inhibits H. pylori growth with minimum inhibitory and bactericidal concentrations of approximately 168 µg/mL and 250 µg/mL, respectively, and significantly inhibits urease enzyme activity at higher concentrations. Molecular analyses reveal that ferulic acid modulates the expression of key transcriptional regulators involved in flagellar assembly (rpoN, fliA), acid resistance (hup, flgR, arsR), stress response and metal ion homeostasis (fur, hsrA, hrcA), and notably upregulates virulence genes cagA and vacA. These findings suggest a multifaceted antibacterial action of ferulic acid on H. pylori, highlighting its potential as a supportive therapeutic agent, although the upregulation of virulence factors warrants further investigation to clarify clinical implications.