Journals / Türk Biyokimya Dergisi / 2008 / Cilt: 33 - Sayı: 2

Yüksek kolesterol diyeti ile beslenen ratların beyin dokularında N-asetilsisteinin etkisi

The effect of N-acetylcysteine on brain tissue of rats fed with high-cholesterol diet

Pages
58–63
Publication Date
2022-11-05
DOI
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Conclusions: These results suggest that N-acetylcysteine has a dual effect.

📌 3 Key Takeaways

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Objective & Hypothesis:Objectives: The effect of N-acetylcysteine in rats fed a high-cholesterol diet on oxidative stress in the plasma and brain tissue of rats was investigated.
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Key Findings & Data:Methods: The animals were maintained on a basal diet (control, n=10) or a highcholesterol diet (1 % w/w) for eight weeks.
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Conclusion & Impact:Conclusions: These results suggest that N-acetylcysteine has a dual effect.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objectives: The effect of N-acetylcysteine in rats fed a high-cholesterol diet on oxidative stress in the plasma and brain tissue of rats was investigated. Methods: The animals were maintained on a basal diet (control, n=10) or a highcholesterol diet (1 % w/w) for eight weeks. The rats fed high-cholesterol diet were separated to three group; high-cholesterol diet (n=10), low N-acetylcysteine (n=10) and high N-acetylcysteine groups (n=9). Low and high N-acetylcysteine groups received N-acetylcysteine at a dose of 50 and 100 mg/kg/day respectively via intraperitoneally for eight weeks. Malondialdehyde, glutathione, nitric oxide, cholesterol and triglyceride levels were analyzed in the samples. The results were analyzed by Kruskal-Wallis variance analysis and then a Mann-Whitney U test. Results: When N-acetylcysteine was administered at a low dose, lipid peroxidation products in the brain significantly decreased compared with the high-cholesterol group, while glutathione content enhanced. On the other hand, when N-acetylcysteine was administered at a high dose, lipid peroxidation products in the brain and plasma significantly increased compared with the control group. Conclusions: These results suggest that N-acetylcysteine has a dual effect. If the N-acetylcysteine dose was carefully selected, N-acetylcysteine may have a neuroprotective effect against oxidative stress and hypercholesterolemia.

Özet

Amaç: Yüksek-kolesterol diyeti ile beslenen sıçanların plazma ve beyin dokusundaki oksidatif strese N-asetilsisteinin etkisi incelendi. Gereç ve yöntemler: Hayvanlara sekiz hafta boyunca bazal diyet (kontrol), veya yüksek-kolesterol diyeti (% 1 w/w) verildi. Yüksek kolesterol ile beslenen sıçanlar yüksek-kolesterol diyeti (n=10), düşük doz N-asetilsistein (n=10) ve yüksek doz Nasetilsistein (n=9) olmak üzere üç gruba ayrıldı. Yüksek ve düşük N-asetilsistein gruplarına sırasıyla 50 ve 100 mg/kg/gün dozunda N-asetilsistein intraperitoneal olarak sekiz hafta boyunca uygulandı. Örneklerde malondialdehid, glutatyon, nitrik oksit, kolesterol ve trigliserit düzeyleri analiz edildi. Sonuçlar Kruskal-Wallis varyans analizi ve sonra Mann-Whitney U testi kullanılarak değerlendirildi. Bulgular: Düşük doz N-asetilsistein uygulaması yapıldığında yüksek kolesterol diyeti grubundaki ratlara göre beyin dokusu glutatyon içeriği anlamlı derecede artarken lipid peroksidasyon ürünleri ise azalmıştı. Diğer yandan yüksek doz Nasetilsistein uygulananlarda hem beyin dokusu hem de plazma lipid peroksidasyon ürünleri kontrol grubuna göre anlamlı derecede yüksekti. Sonuçlar: Bu sonuçlar N-asetilsisteinin çift etkiye sahip olduğunu düşündürmektedir. N-asetilsistein dozu dikkatli seçilirse oksidatif stres ve hiperkolesterolemiye karşı sinir dokusunu koruyucu etki gösterebilir.

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Cite This Article

ESKİOCAK, S., ALTANER, Ş., ÇAKIR, E., BAYIR, S. (2022). Yüksek kolesterol diyeti ile beslenen ratların beyin dokularında N-asetilsisteinin etkisi. Türk Biyokimya Dergisi, Cilt: 33 - Sayı: 2, 58–63. https://ajindex.com/articles/621350

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