Related Experiment Video
Updated: Feb 7, 2026
Author Spotlight: Understanding the Effect of Herbal-Cake-Separated Moxibustion in Rats with Renal Faliure
Published on: December 22, 2023
Chronic renal failure induces genetic instability in multiple organs of Wistar rats
D A Ribeiro1, R R Campos, C T Bergamaschi
1Department of Biosciences, Federal University of Sao Paulo, UNIFESP, Santos, SP, Brazil. daribeiro@unifesp.br
Background:
Taking into consideration the strong evidence for a relationship between DNA damage and carcinogenesis, the aim of this study was to investigate whether blood, liver, heart, kidney and brain are particularly sensitive organs for DNA damaging during chronic renal disease by the single-cell gel (comet) assay to predict genetic instability induced by this pathological condition.
Methods:
A total of 18 male Wistar rats were divided into two groups: negative control (n = 8) and experimental (n = 10), in which was submitted to the 5/6 renal mass ablation by ligation of two or three branches of the left renal artery and total right nephrectomy during 8 weeks.
Results:
The results showed that chronic renal disease was able to induce genetic damage in blood, heart, liver and kidney cells as depicted by the mean tail moment. No genetic damage was induced in brain cells, i.e. no significant statistically differences (P > 0.05) were noticed when compared to negative control.
Conclusion:
In conclusion, our results suggest that chronic renal failure could contribute to the damage of DNA at all organs evaluated, except to the brain cells. As DNA damage is an important step in events leading to carcinogenesis, this study represents a relevant contribution to the correct evaluation of the potential health risks associated with kidney disease.
Insights
Chronic renal disease induces DNA damage in blood, heart, liver, and kidney cells, but not brain cells, highlighting genetic instability risks. This study aids in evaluating kidney disease health hazards.
Area of Science:
- Biochemistry
- Toxicology
- Genetics
Background:
- DNA damage is strongly linked to cancer development.
- Chronic renal disease may increase susceptibility to genetic damage.
- Assessing organ-specific DNA damage is crucial for understanding disease pathology.
Purpose of the Study:
- To investigate DNA damage in blood, liver, heart, kidney, and brain cells during chronic renal disease.
- To evaluate the potential for genetic instability induced by this condition.
- To determine organ sensitivity to DNA damage in chronic renal failure.
Main Methods:
- Utilized the single-cell gel electrophoresis (comet) assay.
- Employed a rat model with 5/6 renal mass ablation over 8 weeks.
- Compared DNA damage levels in control and experimental groups across multiple organs.
Main Results:
- Chronic renal disease induced significant genetic damage in blood, heart, liver, and kidney cells.
- No statistically significant DNA damage was observed in brain cells compared to controls.
- The mean tail moment was used as an indicator of DNA damage.
Conclusions:
- Chronic renal failure contributes to DNA damage in most evaluated organs, excluding the brain.
- DNA damage is a key factor in carcinogenesis, underscoring kidney disease risks.
- This research provides valuable insights into the health risks associated with kidney disease.
Related Concept Videos
02:18Types of Genetic Transfer Between Organisms
02:18Types of Genetic Transfer Between Organisms
01:11Renal Failure: Dose Adjustments
Reduced renal clearance and elimination rate are common outcomes of renal impairment. These alterations lead to a prolonged elimination half-life and an altered apparent volume of distribution for drugs. As a result, dosage adjustments are typically necessary to maintain optimal drug levels in the body.
However, dosage adjustments...
02:17Microtubule Instability
02:16Genetics of Speciation
00:49What is Genetic Engineering?