Journals / Viral Hepatitis Journal / 2020 / Cilt: 26 - Sayı: 3

Examination of Mutations in the HBsAg and Polymerase Genes Induced by Pegylated Interferon Alpha and Oral Antivirals Used in the Treatment of Chronic Hepatitis B

Kronik Hepatit B Tedavisinde Kullanılan Pegile İnterferon Alfa ve Oral Antivirallerin HBsAg Geni ve Polimeraz Geni Üzerinde Yaptığı Mutasyonların Araştırılması

Pages
141–150
Publication Date
2022-11-06
DOI
—
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⚡ TL;DR(Too Long; Didn't Read)

It was concluded that the efficiencyof qHBsAg levels on making diagnosis is at a good degree todistinguish inactive HBsAg carriers and HBeAg negative CHBpatients, and the cutoff value was determined as 2188 IU/mL.Conclusions: In order to understand the usability of HBsAg titres asa marker in early diagnosis of these mutations more comprehensivestudies are required

📌 3 Key Takeaways

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Objective & Hypothesis:Objectives: The Hepatitis B Virus is a virus having high mutationfrequency due to having a high replication capacity and not havingerror correction capability in reverse transcription.It is aimed toexamine the mutations created by the oral antivirals used in CHBtreatment on pol gene and S gene, to determine the clinical andepidemiological significance of these mutations, and to specify thedevelopment of drug resistance in long terms and the results it maycause.
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Key Findings & Data:Secondly, it is aimed to determine whether the quantitativeHBsAg titers are early markers for detecting drug resistance or not.Materials and Methods: Correlation analyses were performed withmonitoring qHBsAg levels and HBsAg (S/Co) and HBV-DNA levelsof the patients.Results: It was seen in the correlation analysis, a statisticallysignificant middle level correlation existed between the initialqHBsAg and HBV-DNA levels.
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Conclusion & Impact:It was concluded that the efficiencyof qHBsAg levels on making diagnosis is at a good degree todistinguish inactive HBsAg carriers and HBeAg negative CHBpatients, and the cutoff value was determined as 2188 IU/mL.Conclusions: In order to understand the usability of HBsAg titres asa marker in early diagnosis of these mutations more comprehensivestudies are required
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objectives: The Hepatitis B Virus is a virus having high mutationfrequency due to having a high replication capacity and not havingerror correction capability in reverse transcription.It is aimed toexamine the mutations created by the oral antivirals used in CHBtreatment on pol gene and S gene, to determine the clinical andepidemiological significance of these mutations, and to specify thedevelopment of drug resistance in long terms and the results it maycause. Secondly, it is aimed to determine whether the quantitativeHBsAg titers are early markers for detecting drug resistance or not.Materials and Methods: Correlation analyses were performed withmonitoring qHBsAg levels and HBsAg (S/Co) and HBV-DNA levelsof the patients.Results: It was seen in the correlation analysis, a statisticallysignificant middle level correlation existed between the initialqHBsAg and HBV-DNA levels. It was concluded that the efficiencyof qHBsAg levels on making diagnosis is at a good degree todistinguish inactive HBsAg carriers and HBeAg negative CHBpatients, and the cutoff value was determined as 2188 IU/mL.Conclusions: In order to understand the usability of HBsAg titres asa marker in early diagnosis of these mutations more comprehensivestudies are required

Özet

Amaç: Hepatit B Virusu (HBV), yüksek replikasyon kapasitesinin olması ve ters transkripsiyon işleminde hata düzeltme yeteneğinin olmaması nedeniyle, yüksek mutasyon sıklığına sahip bir virustur. Bu çalışmada KHB tedavisinde kullanılan oral antivirallerin pol geni ve S geni üzerinde yaptığı mutasyonların araştırılması ve bu mutasyonların klinik ve epidemiyolojik öneminin saptanması, uzun dönemde ilaç direnci gelişiminin ve bunun yol açacağı sonuçların belirlenmesi amaçlanmıştır. İkincil olarak, kantitatif HBsAg (qHBsAg) titrelerinin ilaç direncini belirlemede erken bir marker olup olmadığının saptanması amaçlanmıştır. Gereç ve Yöntemler: Hastaların qHBsAg düzeyleri ile HBsAg (S/ Co) ve HBV-DNA düzeyleri takip edilerek korelasyon analizleri yapıldı. Bulgular: Tedavi alan hastaların tamamı ele alınarak yapılan korelasyon analizlerinde başlangıç qHBsAg ve HBV-DNA seviyeleri arasında istatistiksel olarak anlamlı orta düzeyde bir korelasyon olduğu görüldü. İnaktif HBsAg taşıyıcıları ile HBeAg negatif KHB hastalarını ayırmada qHBsAg düzeylerinin tanı koymadaki etkinliğinin iyi derecede olduğu sonucuna varıldı, cut off değeri ise 2188 IU/mL olarak belirlendi. Sonuç: Bu mutasyonların erken tanısında HBsAg titrelerinin bir belirteç olarak kullanılabilirliğini anlamak için daha kapsamlı çalışmalara ihtiyaç vardır

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Cite This Article

SAYAN, M., ALTUNOK, E. S., AKHAN, S. (2022). Examination of Mutations in the HBsAg and Polymerase Genes Induced by Pegylated Interferon Alpha and Oral Antivirals Used in the Treatment of Chronic Hepatitis B. Viral Hepatitis Journal, Cilt: 26 - Sayı: 3, 141–150. https://ajindex.com/articles/646333

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