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Updated: Aug 30, 2026

Assessment of Vascular Function in Patients With Chronic Kidney Disease
Published on: June 16, 2014
[Erythrocyte enzymes in chronic kidney failure]
Insights
Enzyme activity in red blood cells, including glucose-6-phosphate dehydrogenase (G6PD) and pyruvate kinase (PK), increases with chronic renal insufficiency (CRI). This suggests a metabolic adaptation to kidney disease.
Area of Science:
- Biochemistry
- Hematology
- Nephrology
Background:
- Chronic renal insufficiency (CRI) affects numerous physiological processes.
- Erythrocyte metabolic pathways may be altered in patients with CRI.
Purpose of the Study:
- To investigate the activity of key erythrocyte enzymes in patients with varying degrees of CRI.
- To determine if enzyme activity correlates with the severity of renal insufficiency.
Main Methods:
- Studied 44 patients with different levels of CRI.
- Assessed the activity of erythrocyte glucose-6-phosphate dehydrogenase (G6PD), 6-phosphogluconate dehydrogenase (6-PGD), and pyruvate kinase (PK).
Main Results:
- Erythrocyte enzyme activity, specifically G6PD and PK, increased with the progression of CRI.
- The pentose phosphate pathway (PPhP) enzymes also showed increased activity.
Conclusions:
- Erythrocyte enzyme activity, particularly G6PD and PK, is elevated in patients with chronic renal insufficiency.
- These findings suggest a potential metabolic adaptation in erythrocytes in response to declining kidney function.
Abstract:
Forty four patients with various degrees of chronic renal insufficiency (CRI) were studied. The activity of both dehydrogenases and pentosephosphate pathway (PPhP) in erythrocyte--glucose-6-phosphate dehydrogenase (G6PD), and 6-phosphogluconate dehydrogenase (6-PGD), as well as the activity of the main generating ATP-enzyme of glycolysis--pyruvate kinase (PK) was studied. The activity of the erythrocyte enzymes studied grows with the intensification of renal insufficiency, particularly manifested in G6PD and PK.
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