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Acute Kidney Injury II: Pathophysiology01:29

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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 (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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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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Related Experiment Video

Updated: Oct 30, 2025

Author Spotlight: Advanced Integrated Model for Sepsis-Induced Myopathy and Single-Cell Metabolic Analysis
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Energetic dysfunction in sepsis: a narrative review.

Sebastien Preau1, Dominique Vodovar2,3,4, Boris Jung5

  • 1U1167 - RID-AGE - Facteurs de Risque et Déterminants Moléculaires des Maladies Liées au Vieillissement, University Lille, Inserm, CHU Lille, Institut Pasteur de Lille, F-59000, Lille, France. seb.preau@gmail.com.

Annals of Intensive Care
|July 3, 2021
PubMed
Summary
This summary is machine-generated.

Sepsis impairs metabolism and mitochondrial function, leading to organ dysfunction. Understanding these metabolic changes offers new diagnostic and therapeutic strategies for sepsis treatment.

Keywords:
Energetic dysfunctionInfectionMetabolismMitochondriaMitochondrial dysfunctionOrgan dysfunctionSepsisSeptic shock

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Area of Science:

  • Biochemistry
  • Pathophysiology
  • Critical Care Medicine

Background:

  • Sepsis is linked to organ dysfunction due to impaired metabolism.
  • Recent research highlights the role of substrate utilization and mitochondrial dysfunction in sepsis pathophysiology.

Purpose of the Study:

  • To synthesize current evidence on metabolism and mitochondrial dysfunction in sepsis.
  • To identify future research directions in sepsis-related organ dysfunction.

Main Methods:

  • Review of literature on sepsis-induced metabolic alterations.
  • Examination of systemic and organ-specific metabolic changes in sepsis.
  • Analysis of bioenergetics in sepsis-related immunodeficiency, cerebral dysfunction, cardiomyopathy, acute kidney injury, and diaphragmatic failure.

Main Results:

  • Sepsis involves altered oxygen consumption, increased substrates, and impaired glucose/lipid oxidation.
  • Mitochondrial dysfunction is associated with organ dysfunction and poor outcomes in sepsis.
  • Metabolic derangements contribute to specific organ failures in sepsis.

Conclusions:

  • Insights into substrate utilization and mitochondrial dysfunction may lead to novel sepsis diagnostics and therapeutics.
  • Personalized treatment strategies for sepsis can be developed by identifying patient subgroups.
  • Further research is needed to evaluate metabolism- and mitochondria-targeted treatments for sepsis.