| خلاصه مقاله | Introduction
The Burkholderia c complex (BCC) is a major cause of secondary infections in patients with cystic fibrosis (CF). Despite advances in global surveillance, reliably detecting of BCC remains challenging in terms of morbidity and mortality worldwide.
Materials
From September 2023 to June 2024, periodic three-month assessments wert ducted in northwestern Iran to monitor secondary infections in patients with cystic fibrosis.
Sputum samples were collected from cach patient and subjected to conventional culture on selective media, followed by biochemical tests for preliminary identification. Concurrently, molecular detection was performed using a polymerase chain reaction (PCR) targeting specific Burkholderia cepacia complex (BCC) genes, enabling precise and rapid identification of B. cepacia. The study also evaluated the potential application of an enzyme-linked immunosorbent assay (ELISA)-based approach using native bacterial strains to develop a rapid and specific diagnostic assay. This study aimed to compare the efficiency, specificity, and reliability of conventional versus molecular diagnostic methods in this patient population by combining culture, biochemical, PCR, and ELISA evaluations.
Results
B. cepacia was not detected in any of the 100 samples using culture and biochemical methods. However, PCR identified five positive samples. These results suggest that
conventional culture and commercial biochemical systems may be unreliable for detecting B. cepaciae, whereas molecular methods are highly specific and accurate.
Conclusion
Molecular detection, particularly PCR, is a precise method for identifying B. cepacia. Additionally, developing ELISA assays using native species could improve the speed,
specificity, and efficiency of BCC detection in a clinical setting. |