4578
Treatment with polyinosinic - polycytidylic acid to induce expression of Cre resulted in complete disruption of the Arnt gene and loss of ARNT messenger RNA ( mRNA ) expression in liver .
 GENE: Cre; GENE: Arnt gene; GENE: ARNT messenger RNA
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: Cre; GENE: Arnt gene; GENE: ARNT messenger RNA