TGFB1 and Hepatic fibrosis: Other significant associations between regulation by IL-10, TGF-β, or Treg and disease parameters such as time-since-infection, ALT levels, and liver fibrosis grade were not found, neither for the whole group of 43 chronic HCV patients, nor for therapy-naive or PegIFN-α/ribavirin experienced patients separately (data not shown).