Journal
CNS & NEUROLOGICAL DISORDERS-DRUG TARGETS
Volume 22, Issue 2, Pages 191-206Publisher
BENTHAM SCIENCE PUBL
DOI: 10.2174/1871527321666220401140747
Keywords
Myalgic Encephalomyelitis; chronic fatigue syndrome; physiological stress; inflammation; neuro-immune; oxidative stress; biomarkers
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This study aimed to investigate the associations between severity of fatigue and physio-somatic symptoms and glomerular filtration rate, inflammatory biomarkers, and Wnt/β-catenin pathway in ESRD patients. The results showed that ESRD patients exhibit high levels of fatigue and physio-somatic symptoms, which are associated with dialysis-induced changes in inflammatory pathways, the Wnt/β-catenin pathway, and copper levels.
Background End-stage renal disease (ESRD) is associated with fatigue and physio-somatic symptoms. Objective The objective of this study is to delineate the associations between severity of fatigue and physio-somatic symptoms and glomerular filtration rate, inflammatory biomarkers, and Wnt/catenin-pathway proteins. Methods The Wnt-pathway related proteins beta-catenin, Dickkopf-related protein 1 (DKK1), R-spondin-1, and sclerostin were measured by ELISA technique in 60 ESRD patients and 30 controls. The Fibromyalgia and Chronic Fatigue Syndrome (FF) Rating Scale was used to assess the severity of FF symptoms. Results ESRD is characterized by a significant increase in the total FF score, muscle tension, fatigue, sadness, sleep disorders, gastro-intestinal (GI) symptoms, and a flu-like malaise. The total-FF score was significantly correlated with serum levels of urea, creatinine, and copper (positively), and beta-catenin, eGFR, hemoglobin, albumin, and zinc (inversely). The total-FF score was associated with the number of total dialysis and weekly dialysis sessions, and these dialysis characteristics were more important in predicting FF scores than eGFR measurements. Partial Least Squares analysis showed that the FF score comprised two factors that are differently associated with biomarkers: a) 43.0% of the variance in fatigue, GI symptoms, muscle tension, sadness, and insomnia is explained by hemoglobin, albumin, zinc, beta-catenin, and R-spondin-1; and b) 22.3% of the variance in irritability, concentration and memory impairments by increased copper and cations/chloride ratio, and male sex. Conclusion ESRD patients show high levels of fatigue and physio-somatic symptoms associated with hemodialysis and mediated by dialysis-induced changes in inflammatory pathways, the Wnt/catenin pathway, and copper.
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