PYGB and neoplasm: Statistical analysis indicated that enhanced PYGB was positively correlated with some clinical parameters of OC (Table 1), such as diagnostic category (P<0.001), different FIGO stages (P=0.0203), absence or presence of metastasis (P=0.0304), and absence or presence of recurrence (P=0.0195), whereas we did not find significant correlations of PYGB expression with age, CA125 level, histological type, residual tumour after surgery, absence of macroscopic tumour or pathological grade in OC.