Effect of Dialysis on Aryl Hydrocarbon Receptor Transactivating Activity in Patients with Chronic Kidney Disease
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Purpose: Elevated aryl hydrocarbon receptor (AhR) transactivating (AHRT) activity and uremia in chronic kidney disease (CKD)may interact with each other, further complicating the disease course. In this study, we prospectively estimated serum AHRT activityusing a highly sensitive cell-based AhR-dependent luciferase activity assay in CKD patients and compared differencestherein according to treatment modality. Materials and Methods: Patients undergoing peritoneal dialysis (PD) (n=22) and hemodialysis (HD) (n=38) and patients withpre-dialysis CKD stage IV or V (n=28) were included. AHRT activity and intracellular adenosine triphosphate (ATP) levels weremeasured. We performed a correlation analysis for AHRT activity, ATP levels, and various clinical parameters. Results: AHRT activity and intracellular ATP levels were inversely correlated and differed according to treatment modalities. AHRT activity was higher in non-dialysis CKD patients than in patients undergoing dialysis and was higher in patients undergoingHD, compared to PD. AHRT activity decreased after HD treatment in HD patients. ATP levels were higher in healthy controls than inpatients with pre-dialysis CKD and PD and were further decreased in patients with HD. We noted significant correlations betweenmultiple clinical parameters associated with cardiovascular risk factors and AHRT activity. Conclusion: AHRT activity was elevated in CKD patients, while dialysis treatment reduced AHRT activity. Further studies are warrantedto specify AHRT activity and to evaluate the precise roles thereof in patients with CKD.
Abstract
Purpose: Elevated aryl hydrocarbon receptor (AhR) transactivating (AHRT) activity and uremia in chronic kidney disease (CKD)may interact with each other, further complicating the disease course. In this study, we prospectively estimated serum AHRT activityusing a highly sensitive cell-based AhR-dependent luciferase activity assay in CKD patients and compared differencestherein according to treatment modality. Materials and Methods: Patients undergoing peritoneal dialysis (PD) (n=22) and hemodialysis (HD) (n=38) and patients withpre-dialysis CKD stage IV or V (n=28) were included. AHRT activity and intracellular adenosine triphosphate (ATP) levels weremeasured. We performed a correlation analysis for AHRT activity, ATP levels, and various clinical parameters. Results: AHRT activity and intracellular ATP levels were inversely correlated and differed according to treatment modalities. AHRT activity was higher in non-dialysis CKD patients than in patients undergoing dialysis and was higher in patients undergoingHD, compared to PD. AHRT activity decreased after HD treatment in HD patients. ATP levels were higher in healthy controls than inpatients with pre-dialysis CKD and PD and were further decreased in patients with HD. We noted significant correlations betweenmultiple clinical parameters associated with cardiovascular risk factors and AHRT activity. Conclusion: AHRT activity was elevated in CKD patients, while dialysis treatment reduced AHRT activity. Further studies are warrantedto specify AHRT activity and to evaluate the precise roles thereof in patients with CKD.
참고문헌 (21)
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