ADAR and ovarian cancer: A histological evaluation based on the histo-score (H-score) showed that strong ADAR1 staining (H-score ≥ 6) was found in 61 of 87 (70.1%) ovarian cancer tissues, while weak ADAR1 staining (H-score ≤ 6) was found in 41 of 49 (83.7%) normal tissues (Fig. 1d, e).