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Changes in copper and ceruloplasmin in chronic renal insufficiency treated by hemodialysis and peritoneal dialysis
Insights
Chronic renal insufficiency does not alter serum copper or ceruloplasmin levels. However, hemodialysis and peritoneal dialysis patients show increased serum copper, potentially due to membrane copper release.
Area of Science:
- Nephrology
- Clinical Chemistry
Background:
- Chronic renal insufficiency (CRI) affects various biochemical parameters.
- The role of copper and ceruloplasmin in CRI is not fully understood.
Purpose of the Study:
- To investigate serum copper and ceruloplasmin levels in patients with chronic renal insufficiency.
- To evaluate the impact of hemodialysis and peritoneal dialysis on these parameters.
Main Methods:
- Serum samples were analyzed from 68 patients with CRI.
- Patients were categorized into groups undergoing hemodialysis or periodic peritoneal dialysis.
Main Results:
- Chronic renal insufficiency itself did not significantly alter serum copper or ceruloplasmin.
- Hemodialysis led to a progressive increase in serum copper and ceruloplasmin, linked to membrane copper leaching (44.44% release).
- Peritoneal dialysis also showed an increase in serum copper during treatment, with no clear explanation provided.
Conclusions:
- Serum copper and ceruloplasmin are not elevated in patients with chronic renal insufficiency solely due to the condition.
- Dialysis procedures, particularly hemodialysis, can lead to increased serum copper and ceruloplasmin levels.
- The mechanism behind increased serum copper during peritoneal dialysis requires further investigation.
Abstract:
Serum copper and ceruloplasmin as well as other parameters in 68 patients with chronic renal insufficiency were studied. It was found that chronic renal insufficiency increases neither the serum copper nor the serum ceruloplasmin. In the group on hemodialysis, there is a progressive increase of copper and ceruloplasmin in serum due to a liberation of 44.44% of the copper content of the membranes. In the group on periodic peritoneal dialysis, there is also an increase of serum copper during the dialysis. We do not have an explanation for this finding.