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Updated: Oct 25, 2025

Assessment of Vascular Function in Patients With Chronic Kidney Disease
Published on: June 16, 2014
The Vascular Circadian Clock in Chronic Kidney Disease
Søren Egstrand1,2, Maria L Mace2, Klaus Olgaard2
1Nephrological Department B, Herlev Hospital, University of Copenhagen, 2730 Copenhagen, Denmark.
Insights
Chronic kidney disease (CKD) disrupts vascular circadian rhythms, impacting cardiovascular health. This study reveals altered clock gene expression in the aorta, linking CKD to vascular pathology.
Area of Science:
- Cardiovascular Science
- Nephrology
- Chronobiology
Background:
- Chronic kidney disease (CKD) is linked to high cardiovascular mortality.
- Circadian rhythms (CR) influence vascular function; their disruption contributes to cardiovascular diseases.
- Uremia in CKD may affect the brain's master circadian pacemaker and peripheral clocks.
Purpose of the Study:
- To investigate the impact of CKD on the intrinsic circadian clock within the vasculature.
- To understand the role of vascular circadian clock disruption in uremic vasculopathy.
Main Methods:
- Analysis of core circadian clock gene expression in the aorta of CKD models.
- Assessment of molecular clock function in vascular tissues under uremic conditions.
Main Results:
- Expression of core circadian clock genes in the aorta is significantly disrupted in CKD.
- CKD alters the molecular circadian clock within the vasculature.
Conclusions:
- Circadian clock system disruption in the vasculature is a key factor in the pathology of uremic vasculopathy.
- Targeting vascular circadian rhythms may offer new therapeutic strategies for CKD patients.
Abstract:
Chronic kidney disease is associated with extremely high cardiovascular mortality. The circadian rhythms (CR) have an impact on vascular function. The disruption of CR causes serious health problems and contributes to the development of cardiovascular diseases. Uremia may affect the master pacemaker of CR in the hypothalamus. A molecular circadian clock is also expressed in peripheral tissues, including the vasculature, where it regulates the different aspects of both vascular physiology and pathophysiology. Here, we address the impact of CKD on the intrinsic circadian clock in the vasculature. The expression of the core circadian clock genes in the aorta is disrupted in CKD. We propose a novel concept of the disruption of the circadian clock system in the vasculature of importance for the pathology of the uremic vasculopathy.
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