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Does hepatitis C increase the accumulation of advanced glycation end products in haemodialysis patients?
Stefan Arsov1, Reindert Graaff, Aurora M Morariu
1Department of Biomedical Engineering, University of Groningen, Groningen, The Netherlands.
Insights
Hepatitis C did not increase advanced glycation end product (AGE) accumulation in hemodialysis patients. AGEs were higher in hemodialysis patients overall, influenced by age, diabetes, cardiovascular disease, and dialysis vintage, not hepatitis C status.
Area of Science:
- Nephrology
- Cardiovascular Medicine
- Hepatology
Background:
- Hepatitis C infection may elevate oxidative stress, contributing to advanced glycation end product (AGE) accumulation and increasing cardiovascular disease (CVD) risk.
- This study investigates the impact of Hepatitis C Virus (HCV) on AGE accumulation in patients undergoing hemodialysis (HD).
Purpose of the Study:
- To determine if Hepatitis C influences the accumulation of advanced glycation end products (AGEs) in patients on hemodialysis.
- To compare AGE levels in hemodialysis patients with and without Hepatitis C.
Main Methods:
- Advanced glycation end product (AGE) accumulation was quantified using skin autofluorescence (AF).
- The study included 92 hemodialysis patients (categorized as HCV+ or HCV-) and 93 healthy controls.
- Biochemical markers related to cardiovascular disease (CVD) were measured in hemodialysis patients.
Main Results:
- Hemodialysis patients exhibited significantly higher skin autofluorescence (AF) for AGEs compared to healthy controls.
- AGE accumulation in hemodialysis patients was independently associated with age, diabetes mellitus (DM), CVD, and hemodialysis vintage.
- Despite elevated liver enzymes and intercellular adhesion molecule 1 in HCV+ patients, skin AF and oxidative stress markers did not significantly differ between HCV+ and HCV- hemodialysis groups.
Conclusions:
- Advanced glycation end product (AGE) accumulation is elevated in hemodialysis patients compared to healthy individuals.
- Hepatitis C status (HCV+ vs. HCV-) did not significantly impact AGE accumulation in this hemodialysis population.
- Cardiovascular disease, diabetes mellitus, age, and hemodialysis vintage are key independent predictors of AGE accumulation, whereas Hepatitis C is not.
Background:
Hepatitis C may cause increased levels of oxidative stress that contribute to accumulation of advanced glycation end products (AGEs), which increase the risk of cardiovascular disease (CVD). The aim of this study was to determine the influence of hepatitis C on AGE accumulation in haemodialysis patients.
Methods:
AGE accumulation was measured by means of skin autofluorescence (AF) in 92 haemodialysis (HD) patients and 93 age-matched healthy controls. In the HD patients, CVD-related biochemical variables were also measured. The HD patients were tested for hepatitis C virus (HCV) antibodies and allocated to a HCV+ or HCV- group.
Results:
Skin AF of the healthy subjects was lower than skin AF in the HD patients (3.13 +/- 0.95 vs 2.2 +/- 0.47; P < 0.001). We calculated the average increase of skin AF in the healthy subjects to be 0.017 arbitrary units per year, being 14 times lower than in HD patients with CVD only and 20 times lower than in HD patients suffering from combined CVD and diabetes mellitus (DM). Multivariate regression analysis showed that AGE accumulation in HD patients can be described by the independent effects of age, DM, CVD and HD vintage. Although inter-cellular adhesion molecule 1 and liver enzymes were elevated in HCV+ HD patients, levels of oxidative stress markers and skin AF were not significantly different between HCV+ and HCV- HD patients.
Conclusions:
AGE accumulation was higher in the HD patients than in the healthy controls. AGE accumulation did not differ in HCV+ and HCV- HD patients. This might be due to the fact that hepatitis C did not cause oxidative stress in our HD population. Independent markers of AGE accumulation were age, HD vintage, DM and CVD, but not hepatitis C.
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