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Renal function and acid-base balance
Research Guide
What is Renal function and acid-base balance?
Renal function and acid-base balance refers to the kidney's role in regulating electrolyte and fluid homeostasis while maintaining systemic pH through excretion of acids, reabsorption of bicarbonate, and management of metabolic acidosis, particularly in chronic kidney disease.
This field encompasses 71,342 papers on diagnosis, management, and effects of metabolic acidosis in chronic kidney disease contexts. Research examines bicarbonate therapy, dietary acid load, and their influences on renal function, bone health, endothelin activity, and cardiovascular risk. Studies highlight nutritional interventions as potential treatments for metabolic acidosis.
Topic Hierarchy
Research Sub-Topics
Metabolic Acidosis in Chronic Kidney Disease
Researchers investigate the prevalence, progression, and clinical consequences of metabolic acidosis in CKD patients, including its role in accelerating kidney function decline and associated comorbidities. Studies focus on diagnostic criteria, anion gap analysis, and longitudinal outcomes in renal cohorts.
Bicarbonate Therapy in Renal Acidosis
This sub-topic examines the efficacy, dosing regimens, and safety of oral and intravenous bicarbonate supplementation for correcting acidosis in kidney disease. Research includes randomized trials assessing impacts on glomerular filtration rate, muscle function, and hospitalization rates.
Dietary Acid Load and Renal Function
Scientists study how net endogenous acid production from diet affects renal acid excretion, kidney stone formation, and CKD progression using metrics like PRAL. Interventions explore plant-based diets and acid-reducing strategies for nephroprotection.
Acid-Base Balance and Bone Health in CKD
Research explores mechanisms linking chronic acidosis to bone resorption, mineral disorders, and fractures in CKD, including effects on parathyroid hormone and vitamin D metabolism. Clinical studies evaluate acidosis correction's impact on bone turnover markers and density.
Metabolic Acidosis and Cardiovascular Risk
Investigators analyze how acidosis promotes endothelial dysfunction, vascular calcification, and cardiac hypertrophy via pathways like endothelin and inflammation in CKD. Cohort studies link acidosis severity to CV events and mortality.
Why It Matters
Renal function and acid-base balance directly affect outcomes in critically ill patients with chronic kidney disease, where acute-on-chronic renal worsening increases long-term kidney dysfunction risk. De Rosa et al. (2017) in "Management of Chronic Kidney Disease Patients in the Intensive Care Unit: Mixing Acute and Chronic Illness" note that critically ill CKD patients frequently develop acute-on-chronic kidney injury, contributing to ICU complications. Ding et al. (2017) in "Intravenous Fluids and Acute Kidney Injury" explain that fluids, electrolytes, and acid-base balance are tightly regulated across body compartments, with disruptions over 50% of body fluid distribution linked to acute kidney injury. These insights guide bicarbonate therapy and nutritional interventions to mitigate cardiovascular risk and bone health deterioration in CKD.
Reading Guide
Where to Start
"Intravenous Fluids and Acute Kidney Injury" by Ding et al. (2017) first, as it provides foundational explanation of fluid, electrolyte, and acid-base regulation across body compartments, directly linking to renal function basics with over 50% body fluid context.
Key Papers Explained
Ding et al. (2017) in "Intravenous Fluids and Acute Kidney Injury" establishes fluid-electrolyte-acid-base regulation principles, which De Rosa et al. (2017) in "Management of Chronic Kidney Disease Patients in the Intensive Care Unit: Mixing Acute and Chronic Illness" applies to CKD ICU cases with acute-on-chronic injury. Dellinger et al. (2013) in "Surviving Sepsis Campaign: International Guidelines for Management of Severe Sepsis and Septic Shock, 2012" connects to broader critical care management influencing renal acid-base in sepsis. Fawcett and Scott (1960) in "A RAPID AND PRECISE METHOD FOR THE DETERMINATION OF UREA" supports functional assessment underlying these dynamics.
Paper Timeline
Most-cited paper highlighted in red. Papers ordered chronologically.
Advanced Directions
Current frontiers emphasize acute-on-chronic kidney injury management in CKD ICU patients, as detailed by De Rosa et al. (2017), with focus on bicarbonate therapy and dietary interventions for metabolic acidosis. No recent preprints or news available, so ongoing work builds on 71,342 papers exploring endothelin and cardiovascular links.
Papers at a Glance
| # | Paper | Year | Venue | Citations | Open Access |
|---|---|---|---|---|---|
| 1 | Surviving Sepsis Campaign: International Guidelines for Manage... | 2013 | Intensive Care Medicine | 7.3K | ✓ |
| 2 | Intravenous Fluids and Acute Kidney Injury | 2017 | Blood Purification | 6.8K | ✓ |
| 3 | The Fourth Report on the Diagnosis, Evaluation, and Treatment ... | 2004 | PEDIATRICS | 6.3K | ✕ |
| 4 | Management of Chronic Kidney Disease Patients in the Intensive... | 2017 | Blood Purification | 5.0K | ✓ |
| 5 | Aortic Stiffness Is an Independent Predictor of All-Cause and ... | 2001 | Hypertension | 3.8K | ✓ |
| 6 | Clinical Practice Guideline for Screening and Management of Hi... | 2017 | PEDIATRICS | 3.4K | ✕ |
| 7 | Electrolyte solutions | 1960 | Journal of Electroanal... | 3.3K | ✕ |
| 8 | TEXTBOOK OF MEDICAL PHYSIOLOGY | 1967 | The American Journal o... | 2.9K | ✕ |
| 9 | A RAPID AND PRECISE METHOD FOR THE DETERMINATION OF UREA | 1960 | Journal of Clinical Pa... | 2.8K | ✓ |
| 10 | Neue Methode zur Bestimmung des Stickstoffs in organischen Kör... | 1883 | Fresenius Zeitschrift ... | 2.3K | ✓ |
Frequently Asked Questions
What role do kidneys play in acid-base balance?
Kidneys maintain acid-base balance by excreting acids, reabsorbing bicarbonate, and regulating electrolytes in response to metabolic acidosis. In chronic kidney disease, impaired renal function disrupts this process, leading to systemic acidosis. Ding et al. (2017) in "Intravenous Fluids and Acute Kidney Injury" describe how fluids, electrolytes, and acid-base are tightly regulated in an energy-dependent manner across body compartments.
How does metabolic acidosis affect chronic kidney disease patients?
Metabolic acidosis in CKD accelerates renal function decline, bone disease, and cardiovascular risk through elevated endothelin activity and dietary acid load effects. Nutritional interventions and bicarbonate therapy can counteract these impacts. De Rosa et al. (2017) in "Management of Chronic Kidney Disease Patients in the Intensive Care Unit: Mixing Acute and Chronic Illness" report that acute-on-chronic kidney injury in ICU-admitted CKD patients worsens long-term outcomes.
What is the impact of intravenous fluids on renal function and acid-base balance?
Intravenous fluids influence over 50% of body fluid distribution, affecting electrolyte and acid-base homeostasis in kidney injury contexts. Disruptions lead to acute kidney injury by altering compartmental fluid dynamics. Ding et al. (2017) in "Intravenous Fluids and Acute Kidney Injury" emphasize tight regulation of these parameters.
How do CKD patients in ICU settings experience renal acid-base disruptions?
CKD patients in ICU develop acute-on-chronic renal failure, compounding acid-base imbalances and critical illness risks. Management focuses on addressing both acute and chronic components. De Rosa et al. (2017) in "Management of Chronic Kidney Disease Patients in the Intensive Care Unit: Mixing Acute and Chronic Illness" detail this high-risk profile.
What methods assess renal function in acid-base studies?
Methods like urea determination precisely measure renal clearance and function in acidosis contexts. Fawcett and Scott (1960) in "A RAPID AND PRECISE METHOD FOR THE DETERMINATION OF UREA" describe a plasma and urine urea assay with tested precision and recovery.
Open Research Questions
- ? How does bicarbonate therapy quantitatively modify endothelin activity and cardiovascular risk in CKD metabolic acidosis?
- ? What precise mechanisms link dietary acid load to bone health deterioration in impaired renal acid-base regulation?
- ? In acute-on-chronic kidney injury, which ICU interventions best preserve long-term renal function and pH balance?
- ? How do fluid compartment shifts during intravenous administration predict acid-base derangements in AKI?
- ? What thresholds of metabolic acidosis in CKD trigger optimal nutritional interventions for electrolyte homeostasis?
Recent Trends
The field spans 71,342 works with sustained focus on metabolic acidosis management in CKD, but 5-year growth data unavailable.
Key 2017 papers like Ding et al.'s "Intravenous Fluids and Acute Kidney Injury" (6831 citations) and De Rosa et al.'s "Management of Chronic Kidney Disease Patients in the Intensive Care Unit: Mixing Acute and Chronic Illness" (5010 citations) highlight persistent emphasis on ICU renal-acid-base integration.
No recent preprints or news reported.
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