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Related Concept Videos

Chronic Kidney Disease I: Introduction01:25

Chronic Kidney Disease I: Introduction

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Chronic Kidney Disease (CKD) arises when the kidneys progressively lose their ability to function, ultimately leading to end-stage kidney disease (ESKD). 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...
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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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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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Acute Kidney Injury III: Clinical Manifestations01:29

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Acute Kidney Injury (AKI) progresses through distinct clinical phases: the oliguric, diuretic, and recovery phases, each marked by unique manifestations and challenges.Oliguric Phase:The oliguric phase is the initial stage of AKI, typically lasting 10 to 14 days. This phase is marked by a significant reduction in urine output, usually less than 400 mL per day, indicating decreased kidney function. Fluid retention is a prominent feature, leading to symptoms such as edema, hypertension, and...
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Acute Kidney Injury I: Introduction01:22

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Introduction:Acute Kidney Injury (AKI) describes a swift decrease in kidney function occurring over hours to days, characterized by the kidneys' failure to remove waste products from the bloodstream. This leads to dangerous complications like metabolic acidosis, fluid overload, and electrolyte imbalances, such as hyperkalemia, which can cause life-threatening arrhythmias. AKI is common in both hospital and outpatient settings, often triggered by dehydration, sepsis, or exposure to nephrotoxic...
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Renal dysfunction significantly impairs the renal clearance of drugs, leading to potential complications in drug therapy. Renal failure, which can be caused by various factors, poses a significant challenge in the elimination of drugs from the body.
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Primary sclerosing cholangitis causally affects kidney function decline: A Mendelian randomization study.

Jeong Min Cho1, Jung Hun Koh1, Seong Geun Kim2

  • 1Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea.

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|September 20, 2023
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Summary

Primary sclerosing cholangitis (PSC) is causally linked to impaired kidney function, including reduced estimated glomerular filtration rate (eGFR) and increased chronic kidney disease (CKD) risk. This study highlights a significant association between PSC and detrimental kidney outcomes.

Keywords:
Chronic kidney failureGlomerular filtration rateKidney function testsMendelian randomization analysisPrimary sclerosing cholangitis

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Area of Science:

  • Genetics
  • Nephrology
  • Gastroenterology

Background:

  • The relationship between primary sclerosing cholangitis (PSC) and kidney function remains largely unexplored.
  • Both PSC and kidney dysfunction can lead to long-term health complications.

Purpose of the Study:

  • To investigate the potential causal link between PSC and kidney function using a Mendelian randomization approach.
  • To assess the association between PSC and key kidney function parameters like eGFR, eGFR decline, and CKD.

Main Methods:

  • A two-sample Mendelian randomization (MR) study utilized genetic variants from PSC GWAS and kidney function data from the CKDGen consortium.
  • Genetic association analyses included multiplicative random-effects inverse-variance weighted (MR-IVW) and pleiotropy-robust methods.
  • Key kidney function traits analyzed were estimated glomerular filtration rate (eGFR), annual eGFR decline, and chronic kidney disease (CKD).

Main Results:

  • Genetically predicted PSC showed a significant causal association with impaired kidney function.
  • PSC was linked to decreased log-transformed eGFR (beta = -0.41%, P < 0.001).
  • PSC was also associated with an increased annual eGFR decline (beta = 2.43%, P < 0.001) and a higher risk of CKD (OR = 1.07, P < 0.001).

Conclusions:

  • Genetically predicted PSC is causally associated with kidney function impairment.
  • The findings suggest PSC may negatively impact kidney health.
  • Further research is needed to elucidate the specific mechanisms underlying this association.