Main Article Content

Abstract

Aim:

To study the role of allopurinol as an oxygen free radical scavenger, in prevention of myocardial ischemic reperfusion injury in albino rabbits.


Materials and Methods

Albino Rabbits of either sex were divided into two groups control (n=5) and test group (n=5), receiving antioxidant allopurinol. Experiments were done using isolated heart perfusion apparatus (Langendorff apparatus). The experiment was divided into three phases perfusion (15 min) followed by ischemia (5 min) followed by reperfusion (15 min). LDH level of perfusate and coronary flow were taken as biochemical and physiological marker of myocardial reperfusion injury respectively were measured at 5, 10 and 15 min of post ischemic period. Control and test groups were compared.


Result:

The result shows that in the group receiving allopurinol the decrease in post ischemic LDH level was significant (p<0.01) at 5,10 and 15 min while there was significant increase in post ischemic coronary flow at 5 min (p<0 .05) as compared with control.


Conclusion

Antioxidant allopurinol has protective role in prevention of myocardial reperfusion injury in albino rabbits.


Aim:

To study the role of allopurinol as an oxygen free radical scavenger, in prevention of myocardial ischemic reperfusion injury in albino rabbits.


Materials and Methods

Albino Rabbits of either sex were divided into two groups control (n=5) and test group (n=5), receiving antioxidant allopurinol. Experiments were done using isolated heart perfusion apparatus (Langendorff apparatus). The experiment was divided into three phases perfusion (15 min) followed by ischemia (5 min) followed by reperfusion (15 min). LDH level of perfusate and coronary flow were taken as biochemical and physiological marker of myocardial reperfusion injury respectively were measured at 5, 10 and 15 min of post ischemic period. Control and test groups were compared.


Result:

The result shows that in the group receiving allopurinol the decrease in post ischemic LDH level was significant (p<0.01) at 5,10 and 15 min while there was significant increase in post ischemic coronary flow at 5 min (p<0 .05) as compared with control.


Conclusion

Antioxidant allopurinol has protective role in prevention of myocardial reperfusion injury in albino rabbits.

Keywords

Allopurinol Langendorff apparatus LDH (lactate dehydrogenase) Reperfusion injury

Article Details

How to Cite
G Gambhir, AK Gupta, IP Jain, P Agrawal, V Kushwaha, A Singh, AN Singh, P Tripathi, & A Tilak. (2021). Role of allopurinol as an oxygen free radical scavanger in prevention of ischemic reperfusion myocardial injury in albino rabbits. International Journal of Research in Pharmacology & Pharmacotherapeutics, 5(1), 70-75. https://doi.org/10.61096/ijrpp.v5.iss1.2016.70-75

References

  1. [1]. Braunwald E, Kloner RA. Myocardial reperfusion a double-edged sword. J Clin Invest. 76(5), 1985, 1713–1719.
  2. [2]. ¬¬Piper HM, Garcia-Dorado D Ovize M. A fresh look at reperfusion injury. Cardiovasc Res. 38(2), 1998, 291–300.
  3. [3]. Yellon DM, Hausenloy DJ: Myocardial reperfusion injury. N Engl J Med. 357(11), 2007, 1121–1135.
  4. [4]. Gaudual Y, Duvelleroy MA. Role of oxygen radicals in cardiac injury due to reoxygenation. J Mol Cell Cardiol. 16, 1984, 459-470.
  5. [5]. McCord JM. Oxygen-derived free radicals in post-ischemic tissue injury. NEngl J Med 321, 1985, 159-163.
  6. [6]. Guarnieri C, Flamigni F, Caldarera CM. Role of oxygen in the cellular damage induced by reoxygenation of the hypoxic heart. J Mol Cell Cardiol 12, 1980, 797- 808
  7. [7]. Das DK, Engelman RM, Rousou JA, Breyer RH, Otani H Lemeshow S. Pathophysiology of superoxide radical as potential mediator of reperfusion injury in pig heart. Basic Res Cardiol 81, 1986, 155-166.
  8. [8]. Przyklenk K, Kloner RA. Superoxide dismutase plus catalase improve contractile function in the canine model of the stunned myocardium. Circ Res. 58, 1986, 148-156.
  9. [9]. Ytrehus K, Gunnes S, Myklebust R, Mjos OD. Protection by superoxide dismutase and catalase in the isolated rat heart reperfused after prolonged cardioplegia: A combined study of metabolic, functional and morphometric ultrastructural variables. Cardiovasc Res. 21, 1987, 492-499.
  10. [10]. Vander Heide RS, Sobotka PA, Ganote PE. Effects of the free radical scavenger DMTU and mannitol on the oxygen paradox in perfused rat hearts. J Mol Cell Cardiol.19, 1987, 615-625.
  11. [11]. Menasche P, Grousset C, Guadual Y, Piwnica A. A comparative study of free radical scavengers in cardioplegic solutions. J Thorac Cardiovasc Surg 92, 1986, 264-271.
  12. [12]. Przyklenk K, Kloner R. Effect of oxygen-derived free radical scavengers on infarct size following six hours of permanent coronary artery occlusion: Salvage or delay of myocyte necrosis? Basic Res Cardiol. 82, 1987, 146-158.
  13. [13]. Akizuki S, Yoshida S, Chambers DE, Eddy IJ, Parmley LF, Yellon DM, Downey JM. Infarct size limitation by xanthine oxidase inhibitor, allopurinol, in closed chest dogs with small infarcts. Cardiovasc Res. 19, 1985, 686-692.
  14. [14]. Mendhi B, Prakash A.Practical Manual of Experimental and Clinical Pharmacology. Jaypee Brothers Medical Publishers, 2010.
  15. [15]. Antonius MM , Kraaij VD, Henk GV, Johan FK et al. Prevention of postischemic cardiac injury by the orally active iron chelator 1,2-dimethyl-3-4-pyridone(L1) and the antioxidant (+)-cyanidanol-3.Circulation. 80, 1989, 158-164.
  16. [16]. Verma S and Fedak: WM.Fundamentals of Reperfusion injury for clinical cardiologist.circulation. 105, 2002, 2332-2336.
  17. [17]. Prashad A, Gersh BJ. Management of microvascular dysfunction and reperfusion injury. 12, Heart, 2005, 1530-1532.
  18. [18]. Gimpel JA et al. Reduction of reperfusion injury of human myocardium: A clinical study.Free radical biology and medicine 19(2), 1995, 251-255.