SOCS3, by virtue of its function of STAT3 signalling suppressor may also provide an anti-fibrotic contribution, as STAT3 promotes liver fibrosis [26], and increased gene expression of the anti-fibrotic fibronectin type III domain containing 5 (Fndc5, also known as irisin) was observed in the KD group [27] (Figure 7). The gene discussed is STAT3; the disease is Hepatic fibrosis.