دوره 3، شماره 4 - ( پائیز 1394 )                   جلد 3 شماره 4 صفحات 28-34 | برگشت به فهرست نسخه ها


XML Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Ashrafian F, Fallah F, Hashemi A, Erfanimanesh S, Amraei S, Tarashi S. First Detection of 16S rRNA Methylase and blaCTX-M-15 Genes among Klebsiella pneumoniae Strains Isolated from Hospitalized Patients in Iran . Res Mol Med (RMM). 2015; 3 (4) :28-34
URL: http://rmm.mazums.ac.ir/article-1-151-fa.html
First Detection of 16S rRNA Methylase and blaCTX-M-15 Genes among Klebsiella pneumoniae Strains Isolated from Hospitalized Patients in Iran . Research in Molecular Medicine. 1394; 3 (4) :28-34

URL: http://rmm.mazums.ac.ir/article-1-151-fa.html


چکیده:   (1155 مشاهده)

Background: The increasing pattern of Multi-Drug Resistant (MDR) bacteria has limited therapeutic options especially for nosocomial isolates of Klebsiella pneumoniae. Therefore, the aim of this study was the molecular detection of 16S rRNA methylase and blaCTX-M-15 among K. pneumoniae strains isolated from hospitalized patients in Mofid, Imam Hossein and Taleghani hospitals.

Materials and Methods:This study was done with 110 K.pneumoniae isolated of hospitals in Tehran, Iran. Antibiotic susceptibility tests were carried out by Kirby-Bauer disc diffusion and broth microdilution methods according to CLSI guidelines. ESBL, AmpC and KPC enzymes were detected by CDDT and MHT methods and the armA, rmtB, rmtC, rmtD and blaCTX-M-15 genes were detected by PCR and sequencing techniques. Typing of antibiotic resistance isolates was carried out by PFGE technique.

Results: In this study, Fosfomycin, colistin and tigecycline were more active than other antibiotics. Among the 110 K. pneumoniae strains, 60(54.5%), 33(30%) and 5(4.5%) were ESBL, Amp-C and KPC positive, respectively. The existence of blaCTX-M-15, armA and rmtC was detected in 40(36.3%), 15 (13.6%) and 2 (1.8%) respectively. Of 15 representative armA-producing K. pneumoniae isolates analyzed by PFGE, 9 different pulsotypes (PF1–9) were identified with Dice coefficients of &ge90% similarity.

Conclusions: High-level aminoglycoside resistance in human pathogens result of 16S rRNA methylases is one of the serious concerns in Iran.

متن کامل [PDF 350 kb]   (468 دریافت)    
نوع مطالعه: پژوهشي | موضوع مقاله: ميکروبيولوژي
دریافت: ۱۳۹۴/۴/۱۱ | پذیرش: ۱۳۹۴/۸/۱۰ | انتشار: ۱۳۹۴/۸/۱۰

ارسال نظر درباره این مقاله : نام کاربری یا پست الکترونیک شما:
کد امنیتی را در کادر بنویسید

کلیه حقوق این وب سایت متعلق به Research in Molecular Medicine می باشد.

طراحی و برنامه نویسی : یکتاوب افزار شرق

© 2015 All Rights Reserved | Research in Molecular Medicine

Designed & Developed by : Yektaweb