Dergiler / 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

Sayfa
141–150
DOI
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Conclusions: In order to understand the usability of HBsAg titres as a marker in early diagnosis of these mutations more comprehensive studies are required

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Amaç & Hipotez:Objectives: The Hepatitis B Virus is a virus having high mutation frequency due to having a high replication capacity and not having error correction capability in reverse transcription.It is aimed to examine the mutations created by the oral antivirals used in CHB treatment on pol gene and S gene, to determine the clinical and epidemiological significance of these mutations, and to specify the development of drug resistance in long terms and the results it may cause.
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Temel Bulgular & Veri:Results: It was seen in the correlation analysis, a statistically significant middle level correlation existed between the initial qHBsAg and HBV-DNA levels.
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Sonuç & Katkı:Conclusions: In order to understand the usability of HBsAg titres as a marker in early diagnosis of these mutations more comprehensive studies are required
🔬Tür:Araştırma Makalesi
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Alan Parametreleri

Özet

Objectives: The Hepatitis B Virus is a virus having high mutation frequency due to having a high replication capacity and not having error correction capability in reverse transcription.It is aimed to examine the mutations created by the oral antivirals used in CHB treatment on pol gene and S gene, to determine the clinical and epidemiological significance of these mutations, and to specify the development of drug resistance in long terms and the results it may cause. Secondly, it is aimed to determine whether the quantitative HBsAg titers are early markers for detecting drug resistance or not. Materials and Methods: Correlation analyses were performed with monitoring qHBsAg levels and HBsAg (S/Co) and HBV-DNA levels of the patients. Results: It was seen in the correlation analysis, a statistically significant middle level correlation existed between the initial qHBsAg and HBV-DNA levels. It was concluded that the efficiency of qHBsAg levels on making diagnosis is at a good degree to distinguish inactive HBsAg carriers and HBeAg negative CHB patients, and the cutoff value was determined as 2188 IU/mL. Conclusions: In order to understand the usability of HBsAg titres as a marker in early diagnosis of these mutations more comprehensive studies are required

Abstract

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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Bu Makaleye Atıf Yap

ALTUNOK, E. S., AKHAN, S., SAYAN, M. (2020). 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/332628

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