Plasma and erythrocyte relationship of catecholamines in hemodialysis patients

Marcin Dziedzic 1, Anna Bednarek-Skublewska 2, Janusz Solski 3, Lucyna Kapka-Skrzypczak 4
1 - Department of Laboratory Diagnostic, Medical University of Lublin, Poland
2 - Department of Nephrology, Medical University of Lublin, Poland
3 - Department of Laboratory Diagnostic, Medical University of Lublin, Poland
4 - Department of Molecular Biology and Translational Research, Institute of Rural Health, Lublin, Poland;Department of Medical Biology and Translational Research, Faculty of Medicine, University of Information Technology and Management, Rzeszow, Poland
Ann Agric Environ Med
2014; 21 (3):
ICID: 1120602
Article type: Original article
The function of the autonomic nervous system is based on reciprocal interaction between the sympathetic and parasympathetic parts, most frequently in the form of antagonistic action on target organs. The main mediators of the sympathetic nervous system in the effectors part are catecholamines (CA), which are involved in various physiological processes. Moreover, CA also has a profound effect on the kidneys, being factors that impact on renal haemodynamics, and have been reported to be altered in pathological disorders, e.g. extracellular volume expression, hypertension and cardiovascular complications. The increased sympathetic nerve activity, at least in part, can explain the raised in plasma CA observed in chronic kidney diseases. Furthermore, plasma CA levels in ureamic patients cannot be considered a reliable index of sympathetic activity, due to existence of many factors which may affect their values. In addition, CA released into the circulation, as one of many substances, may penetrate across the cellular membranes of erytrocytes (RBC). Taking these observations together, the aim of the presented study was to investigate for the first time the plasma and erythrocyte relationship of catecholamines in haemodialysis. The studies were performed among 37 haemodialysed patients who were inhabitants of the Lublin commune. Plasma and intracellular concentration of CA were measured prior to and following haemodialysis by high performance liquid chromatography with electrochemical detection. The results suggest that RBC are able to accumulate CA at the stage of terminal renal failure; in addition, the levels of adrenaline and dopamine in RBC depend on the accumulation of urea in plasma. It was also found that the dynamic changes in concentration of RBC adrenaline are an independent predictor of mortality in haemodialysis patients.
DOI: 10.5604/12321966.1120602
PMID 25292129 - click here to show this article in PubMed

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