{'fraction_non_alphanumeric': 0.03303303303303303, 'fraction_numerical': 0.03453453453453453, 'mean_word_length': 5.2924528301886795, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Promoting effect of trisodium nitrilotriacetate monohydrate on urinary bladder carcinogenesis in rats.

The promoting effect of trisodium nitrilotriacetate monohydrate (Na3NTA X H2O) on two-stage urinary bladder carcinogenesis in F344 rats initiated with N-butyl-N-(4-hydroxybutyl)nitrosamine (BBN) at levels of 0.01 and 0.05% was investigated. Administration of 2.0% Na3NTA X H2O significantly increased both the incidence and the number per 10 cm of basement membrane of preneoplastic lesions and papillomas of the urinary bladder in rats pretreated with 0.05% BBN. This result shows that Na3NTA X H2O has weak promoting activity in urinary bladder carcinogenesis.