Journals / Türk Hematoloji Onkoloji Dergisi / 2004 / Cilt: 14 - Sayı: 4

Bleomisin verilen ratlarda plazma ve eritrositlerin oksidan ve antioksidan durumu: Erdostein ve vitamin E'nin koruyucu rolü

Oxidant and antioxidant status of plasma and erythrocyte in the bleomycin-administered rats: The protective role of erdosteine and vitamin E

Pages
205–213
DOI
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AI Summary & Key Takeaways

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

However, further studies at different doses of erdosteine are needed to determine most appropriate doses and to clarify the issue.

📌 3 Key Takeaways

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Objective & Hypothesis:Bleomycin (BLM) toxicity is associated with lipid peroxidation, which is an autocatalytic mechanism leading to oxidative destruction of cellular membranes, and their destruction can lead to the production of toxic, reactive metabolites and cell death.
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Key Findings & Data:Therefore, we investigated reactive oxygen species production, antioxidant enzyme activities and protective effect of vitamin E and erdosteine in BLM-administrated rats.
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Conclusion & Impact:However, further studies at different doses of erdosteine are needed to determine most appropriate doses and to clarify the issue.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Eritrositler · Lipid peroksidasyonu · Vitamin E

Abstract

Bleomycin (BLM) toxicity is associated with lipid peroxidation, which is an autocatalytic mechanism leading to oxidative destruction of cellular membranes, and their destruction can lead to the production of toxic, reactive metabolites and cell death. Therefore, we investigated reactive oxygen species production, antioxidant enzyme activities and protective effect of vitamin E and erdosteine in BLM-administrated rats. Thirty-five Sprague-Dawley rats were divided randomly into four groups as untreated control, BLM, BLM+erdosteine and BLM+vitamin E groups. At the end of the treatment, plasma and erythrocytes were obtained and the levels of thiobarbituric acid reactive substances (TBARS) and nitric oxide (NO) as well as the activities of superoxide dismutase (SOD), catalase (CAT) and glutathion peroxidase (GSH-Px) were measured. Bleomycin administration resulted in the generation of reactive oxygen species in the blood of rats by decreasing the activities of enzymes SOD, CAT and GSH-Px, while increasing the levels of NO and TBARS, an indicative of lipid peroxidation. Erdosteine and vitamin E treatment prevented the increase in the lipid peroxidation. Erdosteine alone significantly prevented the decrease in SOD, CAT and GSH-Px activities in the erythrocyte and plasma. We suggest that erdosteine is more effective on the prevention of BLM-induced hematotoxicity via antioxidant and free radical scavenger properties than vitamin E at the doses used in the present study. However, further studies at different doses of erdosteine are needed to determine most appropriate doses and to clarify the issue.

Özet

Bleomisin toksisitesi, otokatalitik bir mekanizma ile hücresel membranların hasarına yol açan lipid peroksidasyonu ile ilişkilidir ve membran yıkımı toksik, reaktif metabolitlerin üretimi ve hücre ölümüne yol açabilir. Bu nedenle, bleomisin verilen ratlarda reaktif oksijen türleri üretimi, antioksidan enzim aktiviteleri ile erdosteine ve vitamin E'nin olası koruyucu etkilerini araştırdık. Otuzbeş Sprague-Dawley sıçan tedavi almayan kontrol, bleomisin, bleomisin + erdostein ve bleomisin + vitamin E grupları şeklinde rastgele dört gruba ayrıldı. Deney süresi sonunda plazma ve eritrositler elde edilerek tiyobarbitürik asit reaktif maddeler (TBARS) ve nitrik oksit (NO) düzeylerinin yanı sıra süperoksit dismutaz (SOD), katalaz (CAT) ve glutatyon peroksidaz (GSH-Px) aktiviteleri ölçüldü. Bleomisin verilmesi lipid peroksidasyonunun bir göstergesi olan TBARS ve NO düzeylerini artırırken SOD, CAT ve GSH-Px enzim aktivitelerini azaltarak kanda reaktif oksijen türleri artışı ile sonuçlandı. Erdostein ve vitamin E tedavisi, lipid peroksidasyonu artışını anlamlı olarak önlerken; tek başına erdostein, eritrosit ve plazmada SOD, CAT ve GSH-Px aktivitelerindeki azalmayı önledi. Buna göre erdosteinin bu çalışmada kullanılan dozlarda, antioksidan ve serbest radikal temizleyici özellikleriyle, BLM ile uyarılan hematotoksisite üzerine vitamin E'den daha etkili olduğu ileri sürülebilir. Bununla birlikte, uygun dozları bulmak ve konuyu aydınlatmak için erdosteinin farklı dozlarında daha ileri çalışmalar yapılması gerekmektedir.

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Cite This Article

ARMUTÇU, F., SÖGÜT, S., GÜREL, A., KART, L., COŞKUN, Ö. (2004). Bleomisin verilen ratlarda plazma ve eritrositlerin oksidan ve antioksidan durumu: Erdostein ve vitamin E'nin koruyucu rolü. Türk Hematoloji Onkoloji Dergisi, Cilt: 14 - Sayı: 4, 205–213. https://ajindex.com/articles/409055

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