The prevalence of Pneumocystis jirovecii among patients with different chronic pulmonary disorders in Ahvaz, Iran
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Abstract
Background and Objectives: Pneumocystis jirovecii pneumonia (PJP) is a chronic fungal infection that caused by P. ji- rovecii. Disease is more prevalent among the HIV-infected patients. The colonization of pneumocystis in human respiratory system is associated with the airway inflammation and obstruction. The current study was conducted to identify the preva- lence of P. jirovecii among the patients with chronic pulmonary disorders in Ahvaz, Iran.
Materials and Methods: In the present study, 115 bronchoalveolar lavage (BAL) specimens were collected from patients. Samples were subjected to Nested-PCR with specific primers. The second PCR products were used for sequencing analysis.
Results: Our findings demonstrated that 31(27.0%) of samples were positive for P. jirovecii. Nine patients (29%) have tuberculosis (TB) followed by, 1(3.2%) HIV positive and 21(67.7%) miscellaneous pulmonary disorders. Our results show that there was no significant differences between sex (male:female ratio, 17:14), TB, HIV and P. jirovecii in BAL samples (P>0.05).
Conclusion: The current study is the first report from Ahvaz and it showed a relatively high frequency (27%) of P. jirovecii among patients with different pulmonary disorders. In addition Nested-PCR might be reliable technique for diagnosis of P. jirovecii, while the Grocott's methenamine silver (GMS) have a low sensitivity, which only two positive patients were identified.
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| Issue | Vol 7 No 6 (2015) | |
| Section | Articles | |
| Keywords | ||
| Pneumocystis jirovecii Pneumocystis jirovecii pneumonia HIV-infected patients Tuberculosis | ||
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