mRNA expression was identified after RNA extraction using RNAzol and analysed after reverse transcriptase , by polymerase chain reaction using a semiquantitative competitive hybridization assay .
mrna expression was identified after rna extraction using rnazol and analysed after reverse transcriptase , by polymerase chain reaction using a semiquantitative competitive hybridization assay .
B-RNA_family_or_group O O O O B-other_name I-other_name O B-other_organic_compound O O O B-protein_molecule I-protein_molecule O O B-other_name I-other_name I-other_name O O O O B-other_name I-other_name O