Before hemodialysis, patients have an intraerythrocytic pH (pHi) and an extracellular pH, measured in whole blood (pHo), which are lower than those of healthy controls. During bicarbonate hemodialysis, pHi values continuously increase, approaching a normal value at the end of the session. Concomitantly, pHo values follow similar variations. During acetate hemodialysis, pHi values exhibit a steep initial decrease, reaching a minimum after about 15 minutes. Concurrently, however, pHo values decrease only slightly. This phenomenon seems to originate in the intraerythrocytic medium and might be due to a shift in intracellular CO2/bicarbonate equilibrium. This drop in pHi exhibits interpatient variability, suggesting that the magnitude of pH decrease would be correlated with the degree of the problems observed in some patients undergoing acetate hemodialysis.
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http://dx.doi.org/10.1038/ki.1989.66 | DOI Listing |
Nephrol Dial Transplant
November 2024
Department of Medicine and Nephrology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico.
Background And Hypothesis: Daprodustat, an oral hypoxia-inducible factor prolyl hydroxylase inhibitor, is approved for treatment of anemia in dialysis patients with CKD in some parts of the world. This subgroup analysis examined the efficacy and safety of daprodustat versus darbepoetin alfa in patients with anemia of CKD undergoing peritoneal dialysis (PD).
Methods: ASCEND-D (NCT02879305) was an open-label, Phase 3 trial; patients with CKD were randomized to daprodustat daily and epoetin alfa (HD patients) or darbepoetin alfa (PD patients).
Nat Rev Nephrol
January 2025
AHEPA Hospital, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece.
Diuretic drugs act on electrolyte transporters in the kidney to induce diuresis and are often used in chronic kidney disease (CKD), given that nephron loss creates a deficit in the ability to excrete dietary sodium, which promotes an increase in plasma volume. This rise in plasma volume is exacerbated by CKD-induced systemic and intra-renal activation of the renin-angiotensin-aldosterone-system, which further limits urinary sodium excretion. In the absence of a compensatory decrease in systemic vascular resistance, increases in plasma volume induced by sodium retention can manifest as a rise in systemic arterial blood pressure.
View Article and Find Full Text PDFBiomedicines
December 2024
Division of Gastroenterology and Nephrology, Faculty of Medicine, Tottori University, Nishi-cho 36-1, Yonago 683-8504, Tottori, Japan.
Background/objectives: Renal anemia is one of the major complications associated with chronic kidney disease (CKD). Erythropoietin-stimulating agents (ESAs) are commonly used; however, some patients exhibit resistance. Hypoxia-inducible factor prolyl-hydroxylase inhibitors (HIF-PHIs) have emerged as a novel treatment for renal anemia, enhancing erythropoiesis and iron metabolism.
View Article and Find Full Text PDFFront Nephrol
December 2024
Department of Nephrology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China.
Chronic kidney disease (CKD) patients often suffer from complications such as anemia as the kidney function declines. More than 25% of CKD hemodialysis patients in China are complicated with renal anemia due to renal and hepatic impairment in the production of erythropoietin (EPO). In recent years, prolyl hydroxylase domain (PHD) inhibitors have been approved in China and Japan for the treatment of CKD patients complicated with anemia.
View Article and Find Full Text PDFPril (Makedon Akad Nauk Umet Odd Med Nauki)
November 2024
University Clinic of Nephrology, Skopje, RN Macedonia.
Introduction: Kidney replacement therapy (KRT) by dialysis or kidney transplantation represents the main treatment modalities for patients with kidney failure. Here we evaluate the trends in taking care of such patients in North Macedonia from 2015 through 2020.
Methods: The patients were analyzed according to age, sex, primary disease, and treatment modality.
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