Thus, more research is needed to clarify the function of TGF-β1 and its potential implications in preeclampsia pathogenesis.In our study, we found that TGF-β1 levels in preeclampsia were significantly higher than in normal women (p = 0.020), and when compared with normal pregnant women, the levels were higher but not significant (p = 0.994). The gene discussed is TGFB1; the disease is preeclampsia.