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Chronic Kidney Disease I: Introduction01:25

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Chronic Kidney Disease (CKD) arises when the kidneys progressively lose their ability to function, ultimately leading to end-stage renal disease. At this advanced stage, the kidneys can no longer filter waste or maintain essential body functions, requiring renal replacement therapy (RRT) through dialysis or a kidney transplant for survival.Early-stage chronic kidney disease and detection challengesIn CKD's early stages, symptoms often remain absent because healthy nephrons compensate for...
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Chronic Kidney Disease II: Clinical Manifestations01:24

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Chronic Kidney Disease (CKD) progressively impairs multiple body systems due to the accumulation of uremic toxins, which disrupt cellular functions across various organs.Neurologic symptomsNeurologic symptoms often arise early in CKD, as uremic toxin buildup drives changes in cognitive and motor functions. Patients frequently experience fatigue, headache, confusion, difficulty concentrating, and, in severe cases, seizures. Peripheral neuropathy commonly manifests as burning sensations in the...
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Chronic Kidney Disease III: Interprofessional Care01:28

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Chronic kidney disease (CKD) requires collaborative and comprehensive management. CKD progresses through stages and can lead to end-stage kidney disease (ESKD) if untreated. Interprofessional collaboration and patient education are crucial, enabling patients to manage their health and improve their quality of life.Diagnostic approach for chronic kidney diseaseThe diagnosis of CKD primarily focuses on the glomerular filtration rate (GFR), which assesses kidney function by measuring how well...
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Glomerular filtration rate (GFR) can be estimated from serum creatinine using the modification of diet in renal disease (MDRD) formula or the chronic kidney disease–epidemiology collaboration (CKD–EPI) equation. Both methods are widely used in clinical practice to assess kidney function and guide treatment decisions.The MDRD equation does not require weight or height measurements and is normalized to the body surface area of 1.73 m², considered the average adult surface area.
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Factors Affecting Renal Clearance: Renal Impairment01:17

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Acute Kidney Injury II: Pathophysiology

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Updated: Dec 21, 2025

Assessment of Vascular Function in Patients With Chronic Kidney Disease
08:50

Assessment of Vascular Function in Patients With Chronic Kidney Disease

Published on: June 16, 2014

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Sex differences in endothelial function in chronic kidney disease.

Nicholas T Kruse1, Zhiying You2, Kerrie Moreau3,4

  • 1Division of Nephrology, Department of Internal Medicine, Carver College of Medicine, Iowa City, Iowar.

American Journal of Physiology. Renal Physiology
|May 19, 2020
PubMed
Summary

Vascular dysfunction in chronic kidney disease (CKD) shows significant sex differences in younger patients, with women exhibiting better vascular function. These differences diminish with age, highlighting the impact of aging on vascular health in CKD populations.

Keywords:
agechronic kidney diseasesexvascular function

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Area of Science:

  • Nephrology
  • Cardiovascular Medicine
  • Physiology

Background:

  • Vascular dysfunction is a key factor in chronic kidney disease (CKD) and is linked to cardiovascular diseases.
  • Sex differences in vascular function are well-documented in general populations, but data in CKD patients are lacking.

Purpose of the Study:

  • To investigate potential sex and aging differences in vascular function among patients with chronic kidney disease.
  • To assess endothelium-dependent dilation (EDD) and endothelium-independent dilation (EID) in relation to sex and age.

Main Methods:

  • Vascular function was assessed using brachial artery flow-mediated dilation (for EDD) and nitroglycerin-mediated dilation (for EID).
  • Analyses were adjusted for diabetes, cardiovascular disease, and blood pressure.
  • Participants were stratified by age (<55 years and ≥55 years).

Main Results:

  • Women generally showed higher EDD than men; EID did not differ between sexes overall.
  • Younger individuals (<55 years) had significantly higher EDD and EID compared to older individuals (≥55 years).
  • Younger women (<55 years) exhibited superior EDD and EID compared to younger men.
  • Sex differences in vascular function were not observed in older individuals (≥55 years).
  • Diabetes independently predicted lower EID, but not EDD, in both sexes.

Conclusions:

  • This study is the first to demonstrate significant sex differences in vascular function within the CKD population.
  • These sex-based differences in vascular function are pronounced in younger CKD patients but are attenuated with advancing age.
  • Further research is required to elucidate the underlying mechanisms responsible for sex differences in vascular dysfunction associated with CKD.