Journals / Türk Hijyen ve Deneysel Biyoloji Dergisi / 2011 / Cilt: 68 - Sayı: 4

Evaluation of HCV RNA levels in samples with low anti-hepatitis C virus antibodies at Tepecik Education and Research Hospital

Tepecik Eğitim ve Araştırma Hastanesi'nde düşük düzeyde anti-hepatit C pozitifliği saptanan örneklerin HCV RNA düzeylerinin değerlendirilmesi

Pages
191–196
Publication Date
2022-11-05
DOI
—
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AI Summary & Key Takeaways

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

Against all; there may be false positivity for anti-HCV chemiluminescent assay reults and they should be confirmed by HCV RNA assay so that unnecessary treatment can be avoided.

📌 3 Key Takeaways

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Objective & Hypothesis:OBJECTIVE: Hepatitis C virus (HCV) infection is a global health problem.
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Key Findings & Data:According to WHO data; and there are four million people infected with the hepatitis C virus (HCV) and 350 million people die due liver diseases associated with this virus.
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Conclusion & Impact:Against all; there may be false positivity for anti-HCV chemiluminescent assay reults and they should be confirmed by HCV RNA assay so that unnecessary treatment can be avoided.
🔬Design:Research Article
📍Scope:2009 Verileri
⚙️Variables:Domain Parameters

Abstract

OBJECTIVE: Hepatitis C virus (HCV) infection is a global health problem. According to WHO data; and there are four million people infected with the hepatitis C virus (HCV) and 350 million people die due liver diseases associated with this virus. HCV; is a RNA virus belonging to Flaviviridae family. HCV is a major cause of acute and chronic hepatitis. Transmission is mainly due to infected blood transfusion. Organ transplantation, intravenous drug use, sexual intercourse, and perinatal transmission are other causes of spreading. The aim of this study was to determine the low levels of anti-HCV from the serum samples received at..... Education and Research Hospital Infectious Diseases and Clinical Microbiology Laboratory and evaluate their HCV RNA assay results.Hepatitis C virus (HCV) infection is a global health problem. According to WHO data; and there are four million people infected with the hepatitis C virus (HCV) and 350 million people die due liver diseases associated with this virus. HCV; is a RNA virus belonging to Flaviviridae family. HCV is a major cause of acute and chronic hepatitis. Transmission is mainly due to infected blood transfusion. Organ transplantation, intravenous drug use, sexual intercourse, and perinatal transmission are other causes of spreading. The aim of this study was to determine the low levels of anti-HCV from the serum samples received at..... Education and Research Hospital Infectious Diseases and Clinical Microbiology Laboratory and evaluate their HCV RNA assay results. METHODS: Serum samples received at.....Education and Research Hospital Infectious Diseases and Clinical Microbiology Laboratory between September 1st 2009 and 10th of July 2010 were studied by the anti-HCV chemiluminescent assay (Architect i1000, Abbott, USA) and HCV RNA assay was studied by COBAS AmpliPrep / COBAS AMPLICOR HCV Test (Roche diagnositics, Switzerland). RESULTS: A total of 4741 serum samples were studied. 204 of them were Anti- HCV positive and twenty of these were low positive (sample/cutoff [S/CO]) 1-2). None of these low positive samples had HCV RNA detected. CONCLUSION: In this study; none of the twenty samples with low anti-HCV positivity had HCV RNA detected. Serum samples with low anti-HCV positivity should be studied once again by enzyme immuno assay (EIA) and applied HCV RNA for confirmation. The use of both EIA and molecular methods help cofirmation of positive assay results and early diagnosis. Currently, laboratories use either second- or third-generation EIA tests that detect antibodies against different regions of the HCV genome. The sensitivity of the third generation assay is more than 95% and there are less false positive results. Against all; there may be false positivity for anti-HCV chemiluminescent assay reults and they should be confirmed by HCV RNA assay so that unnecessary treatment can be avoided.

Özet

AMAÇ: Hepatit C virus (HCV) infeksiyonu dünya çapında bir sağlık sorunudur. Dünya sağlık örgütü verilerine göre her yıl yaklaşık dört milyon kişi bu virus ile infekte olmakta; 350000 kişi HCV ile ilişkili karaciğer hastalıklarından hayatını kaybetmektedir. HCV; Flaviviridae ailesinden bir RNA virusudur. HCV, akut ve kronik hepatitlerin ana nedenlerindendir. Başlıca bulaşma yolu kan transfüzyonudur. Doku transplantasyonu, damar içi uyuşturucu kullanımı, cinsel temas, perinatal, perkutan yolla bulaşma, kontamine aletlerin kullanımı da HCVnin bulaş yolları arasındadır. Bu çalışmamızın amacı.....Eğitim ve Araştırma Hastanesi İnfeksiyon Hastalıkları ve Klinik Mikrobiyoloji Laboratuvarına gelen serum örneklerinde düşük düzeyde anti-hepatit C virus (Anti-HCV) pozitifliği saptanan örneklerin HCV RNA düzeylerinin değerlendirilmesidir. YÖNTEMLER: Tepecik Eğitim ve Araştırma Hastanesi İnfeksiyon Hastalıkları ve Klinik Mikrobiyoloji Laboratuvarına 1 Eylül 2009 ve 10 Haziran 2010 tarihleri arasında gönderilen serum örnekleri anti-HCV açısından kemilüminesan tekniği (Architect i1000,Abbott, ABD) ile çalışıldı. HCV RNA testi ise COBAS AmpliPrep/ COBAS AMPLICOR HCV Test (Roche, İsviçre) ile çalışıldı. BULGULAR: Toplam 4741 serum örneği incelenmiştir. Bunların 204ü Anti-HCV pozitif olup yirmisi düşük pozitiftir (sample/cutoff [S/CO])1-2). Düşük pozitif örneklerin hiçbirisinde HCV RNA saptanmamıştır. SONUÇ: Bizim çalışmamızda; yirmi düşük titreli serum örneğinin hiçbirinde HCV RNA pozitifliği saptanmamıştır. Anti-HCV antikorları saptanan serum örnekleri öncelikle enzim immunoassay (EIA) ile tekrar edilmeli; doğrulama için HCV RNA testi yapılmalıdır. EIA ve moleküler testlerin birlikte kullanılması pozitif sonuçların doğrulanmasına ve erken tanıya yardımcı olacaktır. Günümüzde anti-HCV taramalarında ikinci ve üçüncü kuşak EIA testlerinden yararlanılmaktadır. Üçüncü kuşak kitlerin ikinci kuşağa göre yalancı pozitiflik oranı düşük ve duyarlılığı %95in üzerindedir. Buna karşın yalancı düşük pozitiflikler olabilmektedir. Bunların da HCV RNA bakılarak ayırıcı tanısının yapılması gereksiz tedavi maliyetlerinin azaltılmasında önemlidir.

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Cite This Article

KÖSE, Ş., TOPALOĞLU, S., ŞAMLIOĞLU, P., ECE, G. (2022). Evaluation of HCV RNA levels in samples with low anti-hepatitis C virus antibodies at Tepecik Education and Research Hospital. Türk Hijyen ve Deneysel Biyoloji Dergisi, Cilt: 68 - Sayı: 4, 191–196. https://ajindex.com/articles/625184

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