Journals / Türk Klinik Biyokimya Dergisi / 2016 / Cilt: 14 - Sayı: 2

Comparison of Two Different Electrophoresis Systems in Transferrin Isoform Analysis

Transferrin İzoformlarının Analizinde İki Elektroforez Sisteminin Karşılaştırılması

Pages
100–111
Publication Date
2022-11-05
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

In routine laboratory practice "PhastSystem" may be preferred due to its speed.

📌 3 Key Takeaways

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Objective & Hypothesis:Objective: Transferrin isoform analysis is performed for diagnosis of congenital or acquired defects in protein glycosylation.
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Key Findings & Data:The analytical performance was evaluated using a commercially available quality control material at two different levels.
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Conclusion & Impact:In routine laboratory practice "PhastSystem" may be preferred due to its speed.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objective: Transferrin isoform analysis is performed for diagnosis of congenital or acquired defects in protein glycosylation. The reference method for transferrin isoform analysis is isoelectric focusing electrophoresis. The objective of this study has been to perform transferrin isoform analysis using two different electrophoresis systems in our laboratory and to compare the two systems. Materials and Methods: The isoelectric focusing electrophoresis of transferrin isoforms was performed by "Multiphor II" ve "PhastSystem". The analytical performance was evaluated using a commercially available quality control material at two different levels. The two systems were compared with regression analysis with blood samples obtained from 40 patients. Results: In isoelectric focusing method by "Multiphor II" system the coefficients of variation (CV) were determined to be < 3.5 % for within run (n=7) and < 7 % for between run (n=20) imprecision considering di- and tetrasialotransferrin isoforms in two levels of control material. The same values for "PhastSystem" were < 7% (n=8) and < 6% (n=10) respectively. In IEF with "PhastSystem", disialotransferrin isoforms were determined to be 9.69% and 9.27% higher while tetrasialotransferrin isoforms were determined to be 1.33% and 2.15% higher compared to "Multiphor II" at low and high levels of control material respectively. In the regression analysis (n=40) coefficients of correlation for dive tetrasialotransferrin isoforms were determined to be 0,85 ve 0,64 respectively. Conclusion: Transferrin isoform analysis with isoelectric focusing electrophoresis can be performed precisely with similar accuracy with both "Multiphor II" and "PhastSystem". In routine laboratory practice "PhastSystem" may be preferred due to its speed.

Özet

Amaç: Proteinlerin glikozilasyonunun konjenital veya edinsel olarak bozulduğu durumlarda, tanı amaçlı olarak transferrin izoformlarının analizi gerçekleştirilir. Transferrin izoformlarının analizi için referans yöntem izoelektrik odaklama elektroforezidir. Biz de bu çalışma ile laboratuvarımızda iki farklı sistem kullanarak izoelektrik odaklama ile transferrin izoformlarının elektroforetik ayırımını yapmayı ve kullanılan sistemleri karşılaştırmayı amaçladık. Gereç ve Yöntem: Transferrin izoformlarının analizi, "Multiphor II" ve "PhastSystem" sistemleri ile gerçekleştirildi. İki farklı düzey ticari kontrol materyali kullanılarak analitik performanslar değerlendirildi. Ayrıca, toplam 40 olgudan alınan örnekler her iki cihazda da çalışılarak sonuçlar regresyon analizi ile karşılaştırıldı. Bulgular:"Multiphor II" ve "PhastSystem" ile di- ve tetrasiyalotransferrin izoformlarının için jel içi tekrarlanabilirlik sırasıyla < % 3,5 (n=7) ve < % 7 (n=8); jeller arası tekrarlanabilirlik ise sırasıyla < % 7 (n=20) ve < % 6 (n=10) olarak bulundu. İki düzeyli kalite kontrol materyalinde "PhastSystem" ile disiyalo izoformları için % 9,69 ve %9,27 oranında daha yüksek, tetrasiyalo izoformları için % 1,33 ve %2,15 oranında daha yüksek sonuçlar bulundu. İki sistem arasındaki korelasyonun değerlendirilmesinde (n=40); di- ve tetrasiyalotransferrin izoformları için korelasyon katsayıları sırasıyla 0,85 ve 0,64 olarak saptandı. Sonuç: Transferrin izoformlarının izoelektrik odaklama elektroforezi ile analizinde "Multiphor II" ve "PhastSystem" cihazları ile benzer doğruluk ve kesinlik değerleri elde edilmektedir. İki sistem arasındaki korelasyonun da tüm izoformlar açısından anlamlı bulunduğu göz önüne alınarak daha hızlı sonuç vermesi nedeniyle "PhastSystem" cihazının tercih edilebileceği belirlendi.

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Cite This Article

BİLEN, Ö., ALTUN, Z. S., ÇALAN, Ö. G., ÇOKER, C., AKAN, P. (2022). Comparison of Two Different Electrophoresis Systems in Transferrin Isoform Analysis. Türk Klinik Biyokimya Dergisi, Cilt: 14 - Sayı: 2, 100–111. https://ajindex.com/articles/634410

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