Deneysel Mezenterik İskemi Modelinde Oksidatif stress Parametrelerinin değerelendirilmesi

Yıl 2017, Cilt: 19 Sayı: 1, 21 - 29, 24.04.2017

Özgür Tatlı , Yunus Karaca , Ahmet Alver , Ahmet Menteşe , Esin Yuluğ Mücahit Günaydın , Aynur Şahin , Umut Eryiğit Samad Shams Vahdadi Ali Aygün

https://doi.org/10.24938/kutfd.292279

Öz

Objective:

To
determine the diagnostic value of plasma protein
carbonyl, total antioxidant status (TAS), total oxidant status (TOS), oxidative
stress index (OSI) and malondialdehyde (MDA) in the diagnosis of acute mesenteric
ischemia (AMI).

 

Method:

In
this randomized, controlled experimental study, 30 mature female Sprague-Dawley
rats were divided into six groups. Groups 1, 3 and 5 were control groups undergoing
laparotomy only. Groups 2, 4 and 6 were mesenteric ischemia groups undergoing
laparotomy and superior mesenteric artery ligation. Blood and tissue samples
were sampled at 30 minutes (groups 1 and 2), 2 hours (groups 3 and 4) and 6
hours (groups 5 and 6) after surgical procedures.

 

Results:

The difference between
the ischemia and control groups in terms of histopathological injury at 30 min
was statistically significant  (p=0.007).
Histopathological injury increased over time in the ischemia groups. Histopathological
injury was significantly greater in the ischemia groups compared to the control
groups (at both 2 and 6 hours) (p=0.002 and p=0.006). No statistically
significant difference was observed when the control and ischemia groups were
assessed in terms of the oxidative stress parameters plasma protein
carbonyl, MDA, TAS, TOS or OSI.

Conclusion:

On
the basis of the results from this experimental mesenteric ischemia model, while
histopathological injury levels differed significantly between the groups, plasma
protein carbonyl and other markers of oxidative stress such as MDA, TAS, TOS and
OSI levels, did not differ statistically significantly between the ischemia and
control groups.

Anahtar Kelimeler

oxidative stress, mesenteric ischemia, experimental

EXAMINATION OF OXIDATIVE STRESS PARAMETERS IN EXPERIMENTAL MESENTERIC ISCHEMIA MODEL

Öz

Amaç:

Akut mezenterik iskemi (AMI) tanısında plazma protein karbonil, total antioksidan statüsü (TAS), total oksidan statusu (TOS), oksidatif stres indeksi (OSI) ve malondialdehit (MDA) tanı değerini saptamak.

Yöntem:

Bu randomize kontrollü deneysel çalışmada, 30 olgun dişi Sprague-Dawley sıçan altı gruba ayrıldı. Grup 1, 3 ve 5, sadece laparotomi yapılan kontrol gruplarıydı. Grup 2, 4 ve 6 laparotomi ve üst mezenterik arter ligasyonu yapılan mezenterik iskemi grupları idi. Cerrahi işlem sonrası 30 dakika (grup 1 ve 2), 2 saat (grup 3 ve 4) ve 6 saat (grup 5 ve 6) kan ve doku örnekleri alındı.

Sonuçlar:

İskemi ve kontrol grupları arasındaki fark histopatolojik düzeyde  istatistiksel olarak anlamlıydı (p = 0.007). İskemi grupları üzerinde histopatolojik hasar görüldü. Histopatolojik hasar, kontrol grubuna kıyasla (2 saat ve 6 saatte) iskemi gruplarında anlamlı olarak daha yüksekti (p = 0.002 ve p = 0.006). Oksidatif stres parametreleri plazma protein karbonil, MDA, TAS, TOS veya OSI'de değerlendirildi.Kontrol ve iskemi gruplarında istatistiksel olarak anlamlı farklılık gözlenmedi. 

Sonuç:

MDA, TAS, TOS ve OSI düzeyleri gruplar arasında istatistiksel olarak anlamlı farklılık gözlenmezken,  plazma protein karbonil ve mezenterik iskemi model İskemi ve kontrol grupları gibi oksidatif stresin diğer belirteçleri arasında anlamlı farklılık gösterilmedi.

Anahtar Kelimeler

Oksidatif Stres, Mezenter İskemi, Deneysei

Kaynakça

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