LGALS1 and ovarian cancer: a) Ovarian tumour type: Galectin-1 levels in serum of patients with malignant ovarian tumours (45.35±19.88 ng/ml) were found to be higher significantly as compared to the controls (9.1±4.6 ng/ml) and benign ovarian tumours (10.0 ±5.29 ng/ml) (p<0.0001) (Fig. 6a).