Multidrug resistance / acinetobacter baumannii/ mexa/ mexb / isr rada teyasingh: screening of multidrug resistance acinetobacter baumannii by using mexb gene and the16-23s rrna intergenic spacer region (isr)
Abstract:
This research was aimed to study MexB like gene in Acinetobacter baumannii and characterize it among some opportunistic bacteria. The MexB gene was analyzed and compared by PCR and confirmed the difference of A. baumannii among other species by 16S - 23S rRNA Intergenic Spacer Region (ISR). This research could only amplify the MexB like DNA from multidrug-resistant A. baumannii of which was not found in non drug-resistant A. baumannii among all samples, isolated from Rayong Hospitals and Chonburi Hospital during March to December 2014. Thus, the research was revealed that MexB like gene dispread in the two provinces, and this gene contained PCR product of 2,300 base pairs. This research also found that Mex B like gene isolated from multidrug-resistant A. baumannii was similar to resistancenodulation-cell division (RND) gene found in multidrug-resistant P. aeruginosa. Also, identification of A. baumannii by using ISR primer could indicate that twenty isolates of both multidrug-resistant A. baumannii and non multidrug-resistant A. baumannii contained 1,230 base pairs of ISR. Thus, PCR could be applied to select out multidrug-resistant A. baumannii and discrete from non drug-resistant A. baumannii in laboratory, hospital and agencies. This method also included to study evolution of resistant bacteria and incidence of outbreaks for treatment and prevention A. baumannii infection in the future