Role of aldose reductase in the peritoneal changes of patients undergoing peritoneal dialysis.

Abstract:

BACKGROUND/AIMS:The mesothelium of patients undergoing peritoneal dialysis (PD) is exposed to glucose in dialysate. Glucose metabolites 3-deoxyglucosone and advanced glycation endproducts (AGEs) in the PD fluid induce peritoneal damage. Circulating factors also affect the peritoneum in the uremic model and predialysis patients. Aldose reductase (AR) generates precursors of 3-deoxyglucosone. We have reported AR acceleration in uremic patients. Therefore, AR acceleration might affect the peritoneum. The purpose of this study was to evaluate the AR level in PD patients and to determine the factors that change the peritoneum of these patients. METHODS:We measured the PD effluent (eff-) concentration of cancer antigen 125 (CA125) as a marker of mesothelial viability in PD patients. Erythrocyte AR, eff-, and plasma (p-) concentrations of 3-deoxyglucosone, AGEs, and malondialdehyde were also studied in 30 PD patients, 18 patients undergoing hemodialysis, and 8 control subjects. RESULTS:In the PD group, AR, p-3-deoxyglucosone, p-AGEs, and p-malondialdehyde were higher than in the control group. The predictors for eff-CA125 were not only PD duration and eff-3-deoxyglucosone, but also AR. CONCLUSION:AR was upregulated in PD patients. AR acceleration may affect the peritoneum in these patients. Further studies are needed to clarify the role of AR in PD patients.

journal_name

Am J Nephrol

authors

Hasuike Y,Moriguchi R,Hata R,Miyagawa K,Kuragano T,Aizawa M,Yamamoto S,Yanase K,Izumi M,Tanimoto T,Nakanishi T

doi

10.1159/000108358

subject

Has Abstract

pub_date

2007-01-01 00:00:00

pages

622-9

issue

6

eissn

0250-8095

issn

1421-9670

pii

000108358

journal_volume

27

pub_type

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