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Updated: Jul 7, 2026

A Large Animal Model for Acute Kidney Injury by Temporary Bilateral Renal Artery Occlusion
Published on: February 2, 2021
[Role of apoptosis in the kidney after reperfusion]
1Semmelweis Egyetem, Altalános Orvostudományi Kar Transzplantációs és Sebészeti Klinika Budapest Baross u. 23. 1082. toronyi@trans.sote.hu
Unlabelled:
Organ transplantation is one of the most important achievements of medicine in the 20th century. Ischaemia-reperfusion has a great impact on both: immediate organ function and long-term survival. Organ transplantation can be regarded as a clinical model of ischaemia-reperfusion phenomenon.
Aim:
The prevention of ischaemia-reperfusion damages. Apoptosis plays a key-role in these processes.
Methods:
Apoptosis was investigated in the course of human kidney transplantation. In animal experiments the characteristics of apoptosis were analysed after short ischaemia. Calcium antagonists: verapamil, nifedipine, bepridil, fendiline and (-)-deprenyl, an irreversible selective inhibitor of monoamino oxidase type B, (-)-deprenyl, were administered to prevent apoptosis.
Results:
The observations showed that in the course of human kidney transplantation necrotic, apoptotic and proliferating renal tubular cells can be observed. All calcium channel blockers and (-)-deprenyl decreased the occurrence and degree of apoptosis in rat kidney.
Conclusions:
The functional capacity of tubular cells is a significant factor in the adequate kidney function. The reduction of the apoptosis of tubular cells possibly could improve the function of transplanted kidneys.
Insights
Organ transplantation involves ischaemia-reperfusion injury. Researchers found that calcium channel blockers and (-)-deprenyl reduce tubular cell apoptosis, potentially improving transplanted kidney function.
Area of Science:
- Nephrology
- Transplant Surgery
- Cell Biology
Context:
- Organ transplantation is a major medical advancement.
- Ischaemia-reperfusion injury significantly impacts organ function and survival.
- Kidney transplantation serves as a model for studying ischaemia-reperfusion.
Purpose:
- To investigate the prevention of ischaemia-reperfusion damage in kidney transplantation.
- To understand the role of apoptosis in these processes.
- To evaluate the efficacy of calcium antagonists and (-)-deprenyl in preventing apoptosis.
Summary:
- Apoptosis was studied during human kidney transplantation.
- Animal models analyzed apoptosis after ischemia.
- Calcium channel blockers (verapamil, nifedipine, bepridil, fendiline) and (-)-deprenyl were administered.
- Observations revealed necrotic, apoptotic, and proliferating renal tubular cells.
- All tested agents reduced apoptosis in rat kidneys.
Impact:
- Tubular cell apoptosis affects transplanted kidney function.
- Reducing tubular cell apoptosis may enhance graft survival and function.
- This research offers potential therapeutic targets for mitigating ischaemia-reperfusion injury.
Related Concept Videos
Acute Kidney Injury II: Pathophysiology
Acute Kidney Injury IV: Diagnostic Studies and Prevention
Apoptosis
Kidney Transplant II: Surgical Procedure
Acute Kidney Injury I: Introduction
Acute Kidney Injury III: Clinical Manifestations
