Document Detail


Hyperhomocysteinemia and oxidative stress during dialysis treatment.
MedLine Citation:
PMID:  12739827     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND/AIMS: The concomitant presence of hyperhomocysteinemia and oxidative stress may represent a determinant factor for the occurrence of vascular alterations and cardiac diseases, the main cause of death among dialysis patients. The aim was to analyze the occurrence of hyperhomocysteinemia and oxidative stress and their possible relationship in dialysis patients. METHODS: Antioxidant substances, homocysteine, folate, and vitamin B12 were determined in blood from 32 patients on hemodialysis (HD), 21 patients on peritoneal dialysis (PD), and 12 healthy individuals. RESULTS: Different degrees of hyperhomocysteinemia were observed in all HD patients and in 95% of the PD patients (45.30 +/- 24.89 microM in HD and 35.50 +/- 26.53 microM in PD). Oxidative stress defined as an imbalance between oxidant and antioxidant forces was observed in all dialysis patients, but was more intense in HD individuals. In this group, lipoperoxidation and protein oxidation were associated with lower concentrations of antioxidants such as erythrocyte vitamin E and vitamin C. CONCLUSIONS: Hyperhomocysteinemia and oxidative stress occur in both types of dialysis treatment, possibly contributing to the establishment of complications in these patients.
Authors:
Paula Garcia Chiarello; Maria Terezinha I Vannucchi; Hélio Vannucchi
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Renal failure     Volume:  25     ISSN:  0886-022X     ISO Abbreviation:  Ren Fail     Publication Date:  2003 Mar 
Date Detail:
Created Date:  2003-05-12     Completed Date:  2003-08-22     Revised Date:  2008-05-21    
Medline Journal Info:
Nlm Unique ID:  8701128     Medline TA:  Ren Fail     Country:  United States    
Other Details:
Languages:  eng     Pagination:  203-13     Citation Subset:  IM    
Affiliation:
Faculty of Medicine of Ribeirão Preto, University of São Paulo, Brazil.
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Female
Homocysteine / blood
Humans
Hyperhomocysteinemia / blood,  etiology*,  physiopathology*
Kidney Failure, Chronic / blood,  physiopathology*,  therapy*
Lipid Peroxidation / physiology
Male
Middle Aged
Oxidative Stress / physiology*
Peritoneal Dialysis, Continuous Ambulatory / adverse effects*
Renal Dialysis / adverse effects*
Risk Factors
Vascular Diseases / blood,  etiology*,  physiopathology*
Chemical
Reg. No./Substance:
454-28-4/Homocysteine

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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