Journals / Mikrobiyoloji Bülteni / 2009 / Cilt: 43 - Sayı: 1

Investigation of the relationship between serum nitric oxide levels, HBV-DNA and ALT levels in chronic hepatitis B patients

Kronik hepatit B hastalarında serum nitrik oksit düzeyi ile HBV-DNA ve alt düzeyleri arasındaki ilişkinin araştırılması

Pages
83–89
DOI
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AI Summary & Key Takeaways

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

As a result, although the NOx levels in chronic hepatitis patients were found higher than those in the control group, and significant correlations were detected between NO, viral load and ALT, the exact role of NO in the disease pathogenesis and outcome needs to be studied further at cellular level.

📌 3 Key Takeaways

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Objective & Hypothesis:It has been reported that increased nitric oxide (NO) production by the hepatocytes during chronic inflammatory processes, plays an important role in the pathogenesis of chronic hepatitis B.
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Key Findings & Data:The aim of this study was to investigate the relationship between serum levels of NOx (nitrite + nitrate) with the viral load and alanine aminotransferase (ALT) levels in chronic hepatitis B (CHB) patients.
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Conclusion & Impact:As a result, although the NOx levels in chronic hepatitis patients were found higher than those in the control group, and significant correlations were detected between NO, viral load and ALT, the exact role of NO in the disease pathogenesis and outcome needs to be studied further at cellular level.
🔬Design:Research Article
📍Scope:2006-2007 Verileri
⚙️Variables:Alanin transaminaz · Viral yük · Hepatit B

Abstract

It has been reported that increased nitric oxide (NO) production by the hepatocytes during chronic inflammatory processes, plays an important role in the pathogenesis of chronic hepatitis B. The aim of this study was to investigate the relationship between serum levels of NOx (nitrite + nitrate) with the viral load and alanine aminotransferase (ALT) levels in chronic hepatitis B (CHB) patients. A total of 93 CHB patients (67 male, 26 female; mean age: 47.3 +/- 10.9 years) and 53 healthy control subjects (17 male, 36 female; mean age: 58.6 +/- 2.1 years) followed-up during 2006-2007 period were included to the study. Hepatitis B virus (HBV) serologic markers, viral load and ALT levels were studied by chemiluminescence method (Ortho-Clinical Diagnostics, USA), by real-time polimerase chain reaction (PCR) (ABI PRISM 7700, Applied Biosystem, CA), and by Aeroset System (Abbott Laboratories, USA), respectively. NOx levels were determined by a method which was based on the reduction of nitrate to nitrite by cadmium. Mean levels of ALT and HBV-DNA of the patients were found as 98.7 +/- 138.4 IU/I and 1.6 x 10(9) +/- 4.0 x 10(9) copies/ml, respectively. In the evaluation of mean levels of NOx in patient and control groups, the difference was found statistically significant (30.6 +/- 21.7 micromol/l and 23.7 +/- 5.2 micromol/l, respectively; p< 0.05). In view of the relationship between the parameters, a positive correlation was detected between viral load and ALT levels (r= 0.768; p< 0.001), besides the significant correlations between NOx and viral load, and NOx and ALT (r= 0.346, p= 0.001 and r= 0.314, p= 0.002, respectively). As a result, although the NOx levels in chronic hepatitis patients were found higher than those in the control group, and significant correlations were detected between NO, viral load and ALT, the exact role of NO in the disease pathogenesis and outcome needs to be studied further at cellular level.

Özet

Kronik inflamatuvar olaylar sırasında karaciğer hücreleri tarafından sentezlenen nitrik oksit (NO)'in aşırı üretiminin kronik hepatit B patogenezinde önemli rol oynadığı bildirilmektedir. Bu çalışmada krnik hepatit B (KHB) hastalarında serum NOx (nitrit + nitrat) düzeyleri ile viral yük ve alanin aminotrans- feraz (ALT) düzeyleri arasındaki ilişkinin araştırılması amaçlanmıştır. 2006-2007 yılları arasında gerçekleştirilen çalışmaya 93 KHB hastası (67 erkek, 26 kadın; ortalama yaş: 47.3 ± 10.9 yıl) ile 53 sağlıklı kontrol birey (17 erkek, 36 kadın; ortalama yaş: 58.6 ± 2.1 yıl) dahil edilmiştir. Hepatit B virusu (HBV) sero- lojik göstergeleri kemilüminesans yöntemi (Ortho-Clinical Diagnostics, ABD) ile; HBV-DNA düzeyi, gerçek zamanlı polimeraz zincir reaksiyonu (PCR) (ABI PRISM 7700, Applied Biosystem, CA) ile; ALT düzeyleri ise Aeroset System (Abbott Laboratories, ABD) ile çalışılmıştır. NOx düzeyinin saptanmasında, nitratın kadmiyumla nitrite indirgenmesi yöntemi kullanılmıştır. Hastaların ALT düzeylerinin ortalaması 98.7 ± 138.4 IU/I; viral yük ortalaması ise 1.6 x 109 ± 4.0 x 109 kopya/ml olarak saptanmıştır. Hasta ve kontrol gruplarının ortalama NO düzeyleri karşılaştırıldığında aralarındaki fark istatistiksel olarak anlamlı bulunmuştur (sırasıyla; 30.6 ± 21.7 pmol/l ve 23.7 ± 5.2 |jmol/l; p< 0.05). Olgularda çalışılan parametreler arasındaki ilişki araştırıldığında; viral yük ile ALT değerleri arasında pozitif korelasyon saptanırken (r= 0.768; p< 0.001); NO ile viral yük ve NO ile ALT değerleri arasında anlamlı korelasyon belirlenmiştir (sırasıyla; r= 0.346, p= 0.001 ve r= 0.314, p= 0.002). Sonuç olarak çalışmamızda, KHB hastalarında serum NO düzeylerinin kontrollere göre daha yüksek bulunmuş olmasına ve NO ile ALT ve HBV- DNA düzeyleri arasında anlamlı bir ilişkinin saptanmasına karşın, NO'nun hastalık patogenezindeki rolünün aydınlatılması için serum düzeylerinin yeterli olmayacağı ve hücresel düzeyde ileri araştırmaların yapılması gerektiği düşünülmüştür.

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Cite This Article

ŞENER, A. G., KIRDAR, S., SERTER, M., AFŞAR, İ., DEMİR, E. M., CEYLAN, C., AYDIN, N. (2009). Investigation of the relationship between serum nitric oxide levels, HBV-DNA and ALT levels in chronic hepatitis B patients. Mikrobiyoloji Bülteni, Cilt: 43 - Sayı: 1, 83–89. https://ajindex.com/articles/299618

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