Journals / Türk Nefroloji Diyaliz ve Transplantasyon Dergisi / 2012 / Cilt: 21 - Sayı: 1

Oxidative dna damage in newly diagnosed and untreated patients with ısolated high blood pressure: The acute effect of olmesartan

Yeni tanı konmuş ve tedavi edilmemiş izole kan basıncı yüksekliği olan hastalarda oksidatif dna hasarı: Olmesartanın akut etkisi

Pages
60–65
Publication Date
2022-11-05
DOI
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All measurements were repeated after the treatment period.RESULTS: Baseline mean levels of 8-OHdG (6.1±1.0 ng/ml) in patients were significantly higher than the control group (3.8±0.7 ng/ml) (p

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Objective & Hypothesis:OBJECTIVES: Oxidative stress (OS) is the most important common pathway in the pathogenesis of endothelial and vascular damage related with the cardiovascular risk factors.
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Key Findings & Data:Reactive oxygen species damage the macromolecules and DNA. 8-OHdG (8-hydroxy-2'-deoxyguanosine) is the reliable marker for oxidative DNA damage (ODD).
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Conclusion & Impact:All measurements were repeated after the treatment period.RESULTS: Baseline mean levels of 8-OHdG (6.1±1.0 ng/ml) in patients were significantly higher than the control group (3.8±0.7 ng/ml) (p
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

OBJECTIVES: Oxidative stress (OS) is the most important common pathway in the pathogenesis of endothelial and vascular damage related with the cardiovascular risk factors. Reactive oxygen species damage the macromolecules and DNA. 8-OHdG (8-hydroxy-2'-deoxyguanosine) is the reliable marker for oxidative DNA damage (ODD). To date, little is known about the presence of OS or ODD in patients with newly diagnosed and untreated primary hypertension (PHT), and the effects of antihypertensives on the ODD.The aims of the study was 1) to determine the oxidative DNA damage and to compare with normotensive healthy persons, 2) to determine the factors related with 8-OHdG level, and 3) to investigate the acute effect of olmesartan on 8-OHdG levels, in patients with newly diagnosed untreated PHT.MATERIAL and METHODS: We enrolled 49 newly diagnosed, never treated, mild to moderate hypertensive patients with no additional cardiovascular or OS risk factors, and age and sex-matched 20 normotensive healthy persons. At the beginning of the study; biochemical tests, glomerular filtration rate measurement, and urinalysis were performed. Echocardiography was performed. 8-OHdG levels were obtained in all subjects. Olmesartan at a dose of 20 or 40 mg/day was administered for 4 weeks. All measurements were repeated after the treatment period.RESULTS: Baseline mean levels of 8-OHdG (6.1±1.0 ng/ml) in patients were significantly higher than the control group (3.8±0.7 ng/ml) (p

Özet

AMAÇ: Kardiyovasküler risk faktörlerinin damarsal hasarlanmada kullandıkları en önemli ortak yolak oksidatif strestir (OS). OS'ye bağlı reaktif oksijen türleri, büyük moleküllerde (lipid, protein vb.) ve DNA'da hasarlanmaya yol açar. 8-OHdG (8-hidroksi-2'-deoksiguanosin) oksidatif DNA hasarını (ODH) gösteren oldukça önemli bir moleküldür. Bugün, yeni tanı almış tedavisiz hipertansif hastalarda OS'ye bağlı ODH bulunup bulunmadığı ve antihipertansiflerin bu tabloya etkileri ile ilgili çalışma sayısı oldukça azdır.Çalışmanın amaçları, yeni tanı almış, tedavi edilmemiş ve OS açısından ek riski bulunmayan birincil hipertansiflerde; 1) ODH bulunup bulunmadığını belirlemek ve kan basıncı normal olanlarla karşılaştırmak, 2) 8-OHdG düzeyi ile ilişkili faktörleri belirlemek 3) olmesartanın 8-OHdG düzeyi üzerindeki akut etkisini araştırmaktı.GEREÇ ve YÖNTEMLER: Çalışmaya; yeni tanı almış, tedavi edilmemiş, OS açısından kan basıncı yüksekliği dışında OS risk faktörü bulundurmayan hafif-orta hipertansif 49 hasta ile, yaş ve cinsiyet uyumu sağlanmış, KB normal olan, OS açısından risk faktörü bulunmayan 20 sağlıklı birey alındı. Çalışma başlangıcında; biyokimyasal çalışmalar, glomerüler filtrasyon hızı, idrar testleri, ekokardiyografi ve serum 8-OHdG düzeyleri ölçümü yapıldı. Hastalara 4 haftalık 20 mg olmesartan tekli tedavisi verildi. Tedavi sonrası ölçümler yinelendi.BULGULAR: Hastalarda ortalama serum 8-OHdG düzeyi (6,1±1,0 ng/ml) kontrol grubundan (3,8±0,7 ng/ml) anlamlı derecede yüksekti (p

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Cite This Article

TURGUTALP, K., KIYKIM, A., HOROZ, M., ÖZCAN, T., SEYHANLI, M. (2022). Oxidative dna damage in newly diagnosed and untreated patients with ısolated high blood pressure: The acute effect of olmesartan. Türk Nefroloji Diyaliz ve Transplantasyon Dergisi, Cilt: 21 - Sayı: 1, 60–65. https://ajindex.com/articles/636408

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