Journals / Turkish Journal of Gastroenterology / 2002 / Cilt: 13 - Sayı: 1

Alfa tokoferol ve verapamilin, mezenterik iskemi reperfüzyonuda karaciğer ve ince barsak üzerine etkileri

Effects of alpha tocopherol and verapamil on liver and small bowel following mesenteric ischemia-reperfusion

Pages
40–46
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

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

Glutaminase activity in liver tissue can also be affected by small bowel ischemia-reperfusion.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Background/aims: We have previously shown that alpha tocopherol is a patent antioxidant which prevents reperfusion injury in a kidney and small bowel autotransplant model, in this study, the effect of systemic alpha tocopherol and verapamil on small bowel and hepatic functions following mesenteric ischemi-reperfusion was evaluated.
📊
Key Findings & Data:Methods: Fourty male Wistar Albino rats (weight, 250-300 g) all subjected to an ischemia-reperfusion experiment were divided into four groups of 10 as follows: Group 1: (SHAM), Group 2, given prophylactic and systemic alpha tocopherol, Group 3: given verapamil and Group 4: given (both verapamil and alpha tocopherol).
💡
Conclusion & Impact:Glutaminase activity in liver tissue can also be affected by small bowel ischemia-reperfusion.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Reperfüzyon hasarı · Modeller · hayvan

Abstract

Background/aims: We have previously shown that alpha tocopherol is a patent antioxidant which prevents reperfusion injury in a kidney and small bowel autotransplant model, in this study, the effect of systemic alpha tocopherol and verapamil on small bowel and hepatic functions following mesenteric ischemi-reperfusion was evaluated. Methods: Fourty male Wistar Albino rats (weight, 250-300 g) all subjected to an ischemia-reperfusion experiment were divided into four groups of 10 as follows: Group 1: (SHAM), Group 2, given prophylactic and systemic alpha tocopherol, Group 3: given verapamil and Group 4: given (both verapamil and alpha tocopherol). Results: Glutaminase activities 120 minutes after reperfusion were found to be significant in liver tissues (p=0.004). The highest to the lowest glutaminase activities in liver tissue at 120 minutes after reperfusion were in Group l, Group 3, Group 2 and Group 4 respectively. Significant differences in MDA levels were found in the small bowel at 30 minutes and 120 minutes time points (p<0.05). There were statistically significant higher glutaminase levels at 30 minutes and 120 minutes of reperfusion in the small bowel, especially in Group 4 (p=0.005). Conclusion: Both small bowel and liver injuries reperfusion, can be decreased by prophylactic use of alpha tocopherol and verapamil. Glutaminase activity in liver tissue can also be affected by small bowel ischemia-reperfusion.

Özet

Amaç: Alfa tokoferolün böbrek ve ince barsak dokusundaki reperfüzyon zedelenmesini önleyici etkisi, köpeklerde yapılan deneysel ototransplant modelinde gösterilmiştir. Bu çalışmada sistemik alfa tokoferol ve verapamilin mezenterik iskemi reperfdüzyon sonrasında ince barsak ve karaciğer fonksiyonları üzerine etkisi araştırılmıştır. Yöntem: Çalışmada ağırlıkları 250-300 mg arasında değişen Wistar Albino cinsi ratlar kullanılmıştır. Deneysel çalışma her biri 10 denekten oluşan ve tümüne mezenterik iskemi uygulanan 4 grupta planlandı (Grup l:kontrol grubu, Grup 2: profilaktik ve sistemik alfa tokoferol, Grup 3:verapamil, Grup 4:verapamil+alfa tokoferol). Bulgular: Reperfüzyon sonrasında 120.dk' da alınan karaciğer dokusundaki glutaminaz aktiviteleri Grup 4'te anlamlı olarak yüksek bulundu (p=0.004). Ayrıca 30 ve 120.dk'larda ince barsak dokusundaki MDA düzeyleri, Grup 4' te anlamlı olarak düşük bulundu (p<0.05). Ayrıca SO.dk'da ince barsak dokusundaki glutaminaz aktiviteleri Grup 4'te anlamlı olarak daha yüksekti. Sonuç: Mezenterik iskemi-reperfüzyona bağlı olarak gelişince barsak ve karaciğer fonksiyon bozukluklarında, profilaktik alfa tokoferol ve verapamil koruyucu olabilmektedir. Ayrıca karaciğer dokusundaki glutaminaz aktivitesi ince barsak iskemi-reperfüzyonundan etkilenebilmektedir.

🔖

Cite This Article

YAĞMURDUR, M. C., ÖZDEMİR, A., TOPALOĞLU, S., KILINÇ, K., ÖZENÇ, A. (2002). Alfa tokoferol ve verapamilin, mezenterik iskemi reperfüzyonuda karaciğer ve ince barsak üzerine etkileri. Turkish Journal of Gastroenterology, Cilt: 13 - Sayı: 1, 40–46. https://ajindex.com/articles/411383

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (16)

  1. Hecthman HB. Mediators of local and remote injury following gut ischemia. J Vasc Surg 1993; 18: 134-5
  2. Pogetti RS, Moore FA, Moore EE, et al. Liver injury is a reversible neutrophil mediated event following gut ischemia. Arch Surg 1992; 127: 175-9
  3. Oldham GT, Guice KS, Turnage RH, et al. The systemic consequences of intestinal ischemia / reperfusion injury. J Vasc Surg 1993; 18: 136-7
  4. Schemeling DJ, Cathy MG, Oldham KT, et al. Evidence of neutrophil mediated acute lung injury after intestinal ischemia /reperfusion. Surgery 1989; 106: 195-202
  5. Bulkley GB, Oshima A, Bailey RW. Pathophysiology of hepatic ischemia in cardiogenic shock. Am J Surg 1985; 151: 87-97
  6. Schirmer WJ, Schirmer JM, Naff GB, Fry DE. Systemic complement activation produces hemodynamic changes characteristic of sepsis. Arc Surg 1988; 123: 316-21
  7. Schirmer WJ, Schirmer JM, Fry DE. Recombinant human tumor necrosis factor produces hemodynamic changes characteristic of sepsis and endotoxemia. Arch Surg 1989; 124: 445-8
  8. Harward TRS, Coe D, Sauba WW, et al. Glutamine preserves gut glutathion levels during intestinal ischemia/reperfusion. J Surg Res 1994; 56: 351-5
  9. Zhang W, Frankel WL, Bain A, et al. Glutamine reduces bacterial translocation after small bowel autotransplantation in cyclosporine treated rats. J Surg Res 1995; 58: 158- 64
  10. Koltun WA, Bloomer MM, Vary TC. Glutamine doesn’t increase ammonia in systemicaly drained small bowel transplantation. J Surg Res 1994; 56: 102-7
  11. Demirbafl A, Bozoklu S, Özdemir A, Haberal M. Effect of alpha tocopherol on the prevention of reperfusion injury caused by free oxygen radicals in the canine kidney autotransplantation model. Transplant Proc 1993; 25: 2274
  12. Yağmurdur MC, Özdemir A, Coşkun T, et al. Effect of alpha tocopherol on reperfusion injury in the canine small bowel autotransplantation model. Transplant Proc 1998; 30: 824-7
  13. Nauta JR, Tsimoyiannis E, Uribe M, et al. The role of calcium ions and calcium channel entry blockers in experimental ischemia-reperfusion induced liver injury. Ann Surg 1991; 213, 2: 137-42
  14. Stein HJ, Oosthuizen MMJ, Hinder RA, Lamprechts H. Effect of verapamil on hepatic ischemia - reperfusion injury. Am J Surg 1993; 165: 96-100
  15. Uchiyama M, Mihara M. Determination of malonyldialdehide precursers in tissues by thiobarbituric acid test. Ann Biochem 1978; 86: 271-8
  16. Pinkus LM, Windmueller HG. Phosphate dependent glutaminase of small intestine: Location and role in inte