IL17A and hydrops fetalis: The expression of IL-17 in liver tissue of HF patients is significantly up-regulated, and the high expression of IL-17 promotes fibrosis markers and IL-6 secretion [58] In addition, the activation of the pro-fibrotic TGF-β signaling pathway is driven by several collaborative mechanisms, in which the pro-inflammatory cytokine IL-17A plays a prominent role [59].