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The identification of Candida species isolated from clinical specimens of immunocompromised patients with PCR and determination of antifungal resistance genes with RFLP and sequencing analysis
Abstract
Amaç: Bu çalışmanın amacı immun sistemi baskılı hastalardan elde edilen klinik örneklerden izole edilen Candida türlerinde PCR tekniğinin ve RFLP ve sekans analizi ile antifungal direnç genlerinin araştırılmasıdır. Gereç ve yöntem: Çalışmada immün sistemi baskılı 200 hastadan alınan klinik örnekler (96 bronkoalveoler lavaj, 56 biyopsi-apse, 8 kan, 15 periton diyaliz sıvısı, 15 plevra sıvısı, 5 beyin omurilik ve 5 perikard sıvısı) geleneksel ve moleküler yöntemler ile incelenmiş ve sonuçlar değerlendirilmiştir. Örneklerden mantar DNA\'sı saptandıktan sonra elde edilen ürünün, multipleks PCR yardımı ile tür düzeyinde tanısı yapılmış, antifungal direnci E-test, direnç genleri ise RFLP analizi ile saptanmıştır. Bulgular: İkiyüz örneğin 30\'unda (%15) kültür yöntemleri ile pozitif sonuç alınmış [20 Candida albicans (%67), beş Candida parapsilosis (%17), beş Candida tropicalis (%17)], 170 (%85) örnekte üreme olmamıştır. Genel primerler ile yapılan PCR testi sonucunda kültürleri olumlu bulunan 30 örneğin tümünün mantar DNA\'sı içerdiği belirlenmiştir. İzole edilen suşların biri E-test yöntemiyle flukanozole dirençli, ikisi flukanozole doza bağlı duyarlı olarak saptanırken 27\'si duyarlı olarak bulunmuştur. Seçilen uygun primerler ile BamHI ve SalI enzimleri kullanılarak RFLP uygulanmış, yapılan analizler sonucunda dirençli bir C.albicans suşunda 600 bp\'lik bant görülmüştür. Candida dubliniensis (950 bp) ve Candida krusei (360 bp) ile yapılan multipleks PCR optimizasyonunda başarı sağlanmıştır. Suşların ERG genine uygun primer çiftleri ile PCR\'ları yapıldıktan sonra yapılan sekans analizi sonucunda dirençli C.albicans suşu referans gen ile karşılaştırıldığında D132E, E216D mutasyonları belirlenmiştir. Sonuç: Moleküler test yöntemleri özellikle immün sistemi baskılanmış hasta populasyonunun kısa sürede doğru tedavisine olanak sağladıkları için yaşamsal açıdan önemlidir.
Keywords
References
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Details
Primary Language
Turkish
Subjects
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Journal Section
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Publication Date
June 1, 2012
Submission Date
March 2, 2015
Acceptance Date
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Published in Issue
Year 2012 Volume: 39 Number: 2
APA
Susever, S., & Yeğenoğlu, Y. (2012). The identification of Candida species isolated from clinical specimens of immunocompromised patients with PCR and determination of antifungal resistance genes with RFLP and sequencing analysis. Dicle Medical Journal, 39(2), 242-250. https://doi.org/10.5798/diclemedj.0921.2012.02.0135
AMA
1.Susever S, Yeğenoğlu Y. The identification of Candida species isolated from clinical specimens of immunocompromised patients with PCR and determination of antifungal resistance genes with RFLP and sequencing analysis. Dicle Medical Journal. 2012;39(2):242-250. doi:10.5798/diclemedj.0921.2012.02.0135
Chicago
Susever, Serdar, and Yıldız Yeğenoğlu. 2012. “The Identification of Candida Species Isolated from Clinical Specimens of Immunocompromised Patients With PCR and Determination of Antifungal Resistance Genes With RFLP and Sequencing Analysis”. Dicle Medical Journal 39 (2): 242-50. https://doi.org/10.5798/diclemedj.0921.2012.02.0135.
EndNote
Susever S, Yeğenoğlu Y (June 1, 2012) The identification of Candida species isolated from clinical specimens of immunocompromised patients with PCR and determination of antifungal resistance genes with RFLP and sequencing analysis. Dicle Medical Journal 39 2 242–250.
IEEE
[1]S. Susever and Y. Yeğenoğlu, “The identification of Candida species isolated from clinical specimens of immunocompromised patients with PCR and determination of antifungal resistance genes with RFLP and sequencing analysis”, Dicle Medical Journal, vol. 39, no. 2, pp. 242–250, June 2012, doi: 10.5798/diclemedj.0921.2012.02.0135.
ISNAD
Susever, Serdar - Yeğenoğlu, Yıldız. “The Identification of Candida Species Isolated from Clinical Specimens of Immunocompromised Patients With PCR and Determination of Antifungal Resistance Genes With RFLP and Sequencing Analysis”. Dicle Medical Journal 39/2 (June 1, 2012): 242-250. https://doi.org/10.5798/diclemedj.0921.2012.02.0135.
JAMA
1.Susever S, Yeğenoğlu Y. The identification of Candida species isolated from clinical specimens of immunocompromised patients with PCR and determination of antifungal resistance genes with RFLP and sequencing analysis. Dicle Medical Journal. 2012;39:242–250.
MLA
Susever, Serdar, and Yıldız Yeğenoğlu. “The Identification of Candida Species Isolated from Clinical Specimens of Immunocompromised Patients With PCR and Determination of Antifungal Resistance Genes With RFLP and Sequencing Analysis”. Dicle Medical Journal, vol. 39, no. 2, June 2012, pp. 242-50, doi:10.5798/diclemedj.0921.2012.02.0135.
Vancouver
1.Serdar Susever, Yıldız Yeğenoğlu. The identification of Candida species isolated from clinical specimens of immunocompromised patients with PCR and determination of antifungal resistance genes with RFLP and sequencing analysis. Dicle Medical Journal. 2012 Jun. 1;39(2):242-50. doi:10.5798/diclemedj.0921.2012.02.0135