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Updated: Jun 17, 2025

Assessment of Vascular Function in Patients With Chronic Kidney Disease
Published on: June 16, 2014
The impact of chronic kidney disease on cognitive function
Marion Pépin1,2, Hélène Levassort1,2, Ziad A Massy2,3,4
1Geriatric Department, APHP, Ambroise Paré University Hospital, Boulogne-Billancourt.
Chronic kidney disease (CKD) is linked to cognitive impairment, affecting executive functions and attention. Understanding the mechanisms and biomarkers is crucial for better diagnosis and treatment in CKD patients.
Area of Science:
- Nephrology
- Neurology
- Cognitive Science
Background:
- Individuals with chronic kidney disease (CKD) face a higher risk of cognitive impairment compared to the general population.
- The intricate connection between CKD and cognitive dysfunction requires further elucidation.
- Existing research has not fully characterized the specific patterns and underlying causes of cognitive decline in CKD.
Purpose of the Study:
- To review epidemiological associations between CKD and cognitive impairment.
- To identify specific patterns of cognitive dysfunction observed in CKD patients.
- To explore the underlying mechanisms and emerging biomarkers related to CKD-induced cognitive changes.
Main Methods:
- Literature review of epidemiological studies.
- Analysis of recent research on cognitive function in CKD populations.
- Synthesis of data on proposed pathophysiological mechanisms.
- Evaluation of novel biomarkers for cognitive impairment in CKD.
Main Results:
- Recent studies confirm a significant association between CKD and cognitive impairment, including incident cognitive events.
- CKD patients frequently exhibit deficits in executive functions and attention, while memory may remain relatively preserved.
- Key implicated mechanisms include vascular damage, uremic toxins, blood-brain barrier disruption, gut-brain axis alterations, and glymphatic dysfunction.
- Kidney function is emerging as a critical factor in interpreting cognitive impairment biomarkers, including Alzheimer's disease hallmarks.
Conclusions:
- Interdisciplinary collaboration between nephrologists and neurologists is essential for managing CKD patients at risk of cognitive impairment.
- Further research is needed to fully understand the mechanisms driving the CKD-cognitive impairment link.
- Confirming the utility of biomarkers is crucial for advancing the diagnosis and therapeutic strategies for cognitive dysfunction in CKD.
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