Detection of Capsular Polysaccharide Virulence Genes rmpA and magA of Klebsiella Pneumonia Isolate from Diabetic Foot Ulcer Patient in Najaf Governorate in Iraq

Abstract

Klebsiella Pneumoniae is an opportunistic pathogen, which mostly cause nosocomial infections. K.Pneumoniae utilizes a variety of virulence factors, especially capsule polysaccharide, lipopolysaccharide,fimbriae, outer membrane proteins and determinants for iron acquisition and nitrogen source utilization,for survival and immune evasion during infection. A total of (36) clinical swab specimens isolated frompatient with diabetic foot ulcer in Al-Sdder Medical City (Central Diabetic Foot) in Najaf Governorate,Iraq from November 2019 to February 2020 , for detection some virulence capsular polysaccharide genessuch as rmpA and magA that related with K1 serotype of K . pneumonia and associated with antibioticresistance pattern in patient of diabetic foot ulcer. Antibiotic susceptibility test of K. Pneumoniae isolatesagainst (20) of commonly used antibiotic showed there 25 (69%) of K. pneumonia isolate from diabeticfoot patient were Multi-drug resistance (MDR),while11(31%) were extensive-drug resistance (XDR). Theresults of amplified product demonstrated that K1 serotype of K . Pneumonia was positive in 23 (64%)of totally clinical specimen than other types of serotype ( Non-K1 serotype). (magA) gene that associatedwith hypermucoid viscosity was positive in 21 (58%) of total specimens while (rmpA) gene that regulate ofcapsular polysaccharide of K .pneumonia was positive in 22 (62%) of totally samples