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Related Concept Videos

Acute Kidney Injury I: Introduction01:22

Acute Kidney Injury I: Introduction

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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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Acute Kidney Injury II: Pathophysiology01:29

Acute Kidney Injury II: Pathophysiology

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Acute kidney injury (AKI) causes are categorized into three primary categories based on the location of the injury: prerenal, intrarenal (or intrinsic), and postrenal causes. This classification guides clinical management and illustrates how different pathways can impair kidney function.Etiology and Pathophysiology of Acute Kidney Injury1. Prerenal causesEtiology: Prerenal Acute Kidney Injury, the most common type, occurs when reduced blood flow to the kidneys decreases filtration capacity...
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Acute Kidney Injury V: Interprofessional Care01:20

Acute Kidney Injury V: Interprofessional Care

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Acute Kidney Injury (AKI) requires a collaborative healthcare approach to restore renal function and prevent complications. Essential management strategies involve monitoring fluid and electrolyte balance, adjusting medications, initiating dialysis when necessary, and providing nutritional support.Fluid and Electrolyte ManagementFluid Monitoring: Regularly monitoring body weight, central venous pressure, and urine output helps detect fluid imbalances early. Patient intake and output are...
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Acute Kidney Injury VI: Nursing Management01:22

Acute Kidney Injury VI: Nursing Management

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Acute Kidney Injury (AKI) results in an inability to maintain fluid, electrolyte, and acid-base balance. Effective nursing management is critical in improving patient outcomes and includes comprehensive patient assessment and targeted interventions.Comprehensive Patient AssessmentA detailed history collection is essential, focusing on any recent infections, nephrotoxic medication use, or chronic conditions such as hypertension and diabetes that may contribute to AKI. During the physical...
410
Acute Kidney Injury III: Clinical Manifestations01:29

Acute Kidney Injury III: Clinical Manifestations

841
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...
841
Acute Kidney Injury IV: Diagnostic Studies and Prevention01:30

Acute Kidney Injury IV: Diagnostic Studies and Prevention

279
Accurate diagnosis and effective prevention are critical in managing Acute Kidney Injury (AKI), which is linked to high mortality rates ranging from 10% to 80%. Timely recognition of at-risk patients and careful monitoring can significantly reduce the likelihood of kidney damage.Diagnostic Assessments:The diagnostic process starts with a comprehensive medical history to identify prerenal, intrarenal, and postrenal causes.Prerenal causes, such as dehydration, hypotension, or blood loss, should...
279

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Related Experiment Video

Updated: Jan 22, 2026

Ischemia-reperfusion Model of Acute Kidney Injury and Post Injury Fibrosis in Mice
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Published on: August 9, 2013

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The Aging Kidney and Acute Kidney Injury.

Karl A Nath1, Raman Deep Singh1, Anthony J Croatt1

  • 1Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic, Rochester, Minnesota.

Journal of the American Society of Nephrology : JASN
|January 21, 2026
PubMed
Summary
This summary is machine-generated.

Aging accelerates kidney injury risk through cellular senescence. Senescent cells and their secretory phenotype contribute to acute kidney injury (AKI) and its progression to chronic kidney disease (CKD).

Keywords:
AKIcisplatinischemia-reperfusionkidneyrhabdomyolysis

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Area of Science:

  • Gerontology
  • Nephrology
  • Cell Biology

Background:

  • Aging is a primary risk factor for acute kidney injury (AKI) and chronic kidney disease (CKD).
  • Cellular senescence, a state of irreversible cell cycle arrest, is a key driver of aging and age-related diseases.
  • Senescent cells exhibit distinct metabolic and secretory profiles, including the senescence-associated secretory phenotype (SASP), which promotes inflammation and tissue damage.

Purpose of the Study:

  • To review the evidence linking aging, cellular senescence, and kidney disease pathogenesis.
  • To discuss the role of senescent cells within the kidney and their impact on AKI and the transition to CKD.
  • To explore potential therapeutic strategies targeting senescence, such as senolytics and senomorphics.

Main Methods:

  • Review of existing literature on aging, senescence, AKI, and CKD.
  • Analysis of the biological mechanisms underlying senescence, including SASP.
  • Discussion of clinical factors predisposing older individuals to AKI.

Main Results:

  • Age-related accumulation of senescent cells contributes significantly to AKI risk.
  • The SASP from senescent cells promotes inflammation, fibrosis, and vascular dysfunction, exacerbating kidney injury.
  • Senescence plays a critical role in the progression from AKI to CKD.

Conclusions:

  • Cellular senescence is a fundamental mechanism underlying age-related kidney disease.
  • Targeting senescent cells and their SASP offers promising therapeutic avenues for preventing and treating AKI and CKD.
  • Senotherapies, including senolytics and senomorphics, hold potential for improving kidney health in aging populations.