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Iranian Journal of Basic Medical Sciences، جلد ۱۳، شماره ۱، صفحات ۲۱۰-۲۱۵
عنوان فارسی
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عنوان انگلیسی Molecular Identification and Conventional Susceptibility Testing of Iranian Clinical Mycobacterium fortuitum Isolates
چکیده انگلیسی مقاله Objective(s) Rapidly growing mycobacteria (RGM) are capable of producing diseases in humans. Since mycobacteria vary in their susceptibility, precise identification is critical for adoption of correct drug therapy. The main aim of this study was molecular identification and evaluation of antimicrobial susceptibility pattern of Iranian clinically isolated Myocbacterium fortuitum. Materials and Methods A total of 72 presumptively identified isolates of clinical atypical mycobacteria collected by Isfahan Research Center for Infectious Diseases & Tropical Medicine during 2006-2008 were included in the current study. A combination of conventional and molecular tests was applied to identify the isolates. Molecular methods including genus and group specific PCR and PCR-Restriction Algorithm (PRA) based on hsp65 gene were applied to achieve exact identification of mycobacterial strains. Antimicrobial susceptibility testing onM. fortuitum isolates was performed by in-house prepared broth microdilution test.. Results Out of 72 collected atypical mycobacteria isolates, we identified 25 strains of M. fortuitum. All strains had the specific molecular markers of mycobacterial identity and similar species specific PRA pattern of the international type strain of M. fortuitum. Drug susceptibility testing showed that the M. fortuitum isolates are sensitive to amikacin, sulfamethoxazole and ciprofloxacin (100%), imipenem (92%), clarithromycin (76%), cefoxitin (56%) and doxycycline (16%). Conclusion Molecular identification of atypical mycobacteria based on PRA is a reliable and rapid approach which can identify mycobacterial strains to the species level. Our study showed that M. fortuitum plays a significant role in pulmonary and extrapulmonary infection in patients and should be given proper considerations when clinical samples are processed.
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نویسندگان مقاله پروین حیدریه | parvin heidarieh
department of microbiology, school of medicine, isfahan university of medical sciences, isfahan, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی اصفهان (Isfahan university of medical sciences)

حسن شجاعی | hasan shojaei
research center for infectious diseases amp;amp; tropical medicine, alternatively, department of microbiology, school of medicine and, isfahan university of medical sciences, isfahan, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی اصفهان (Isfahan university of medical sciences)

محمد مهدی فیض آبادی | mohamad mehdi feizabadi
department of medical microbiology, tehran university of medical sciences, tehran, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی تهران (Tehran university of medical sciences)

اصغر حوایی | asghar havaei
department of microbiology, school of medicine, isfahan university of medical sciences, isfahan, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی اصفهان (Isfahan university of medical sciences)

abodolrazagh هاشمی | abodolrazagh hashemi
department of microbiology, school of medicine, isfahan university of medical sciences, isfahan, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی اصفهان (Isfahan university of medical sciences)

بهروز عطایی | behrooz ataei
iranian research center for infectious diseases, isfahan university of medical sciences, isfahan, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی اصفهان (Isfahan university of medical sciences)

عباس دایی ناصر | abass daei naser
laboratory expert; iranian research center for infectious diseases, isfahan university of medical sciences, isfahan, iran

سازمان اصلی تایید شده: دانشگاه علوم پزشکی اصفهان (Isfahan university of medical sciences)

نشانی اینترنتی http://ijbms.mums.ac.ir/article_5065.html
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