Oxidative stress induces renal failure: A review of possible molecular pathways

Habib Yaribeygi1,2, Farin R Farrokhi2, Ramin Rezaee3

  • 1Health Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran.

Insights

Oxidative stress significantly contributes to chronic kidney diseases by damaging cells and triggering harmful pathways. Understanding these mechanisms is key to developing new treatments for kidney disorders.

Area of Science:

  • Nephrology
  • Pathophysiology
  • Molecular Biology

Background:

  • Oxidative stress is implicated in numerous diseases, including chronic kidney diseases (CKD).
  • Free radicals cause cellular damage, activate signaling pathways, and induce systemic responses leading to kidney injury.

Purpose of the Study:

  • To review the literature on the effects of oxidative stress on the pathophysiology of chronic renal disorders.
  • To explore the molecular mechanisms by which free radicals induce CKD.

Main Methods:

  • Literature search of PubMed-Medline and Scopus databases.
  • Keywords used: oxidative stress, kidney, chronic kidney diseases, free radicals.
  • Focus on molecular mechanisms and pathways involved in oxidative stress-induced CKD.

Main Results:

  • Identified approximately 200 relevant articles.
  • Detailed nine key molecular pathways through which free radicals impact renal function.
  • Confirmed the significant role of oxidative stress in CKD pathophysiology.

Conclusions:

  • Oxidative stress plays a crucial role in the development and progression of chronic kidney diseases.
  • Understanding these molecular pathways may reveal novel therapeutic strategies for managing CKD.

Related Concept Videos

Acute Kidney Injury II: Pathophysiology01:29

Acute Kidney Injury II: Pathophysiology

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...
1.2K
Bioactivation and Tissue Toxicity01:25

Bioactivation and Tissue Toxicity

Bioactivation is a metabolic process that transforms less reactive substances into highly reactive metabolites, initiating tissue toxicity. This transformation can lead to various toxic effects, including carcinogenesis and teratogenesis. Reactive metabolites are classified into two main types: electrophiles and free radicals.Electrophiles are electron-deficient species and are produced primarily by the enzyme cytochrome P-450 during the metabolism of compounds containing carbon, nitrogen, or...
25
Renal Failure: Dose Adjustments01:11

Renal Failure: Dose Adjustments

In patients with renal impairment, drugs undergo significant changes in their pharmacokinetics, which require dosage adjustments to ensure safe and effective therapy.
Reduced renal clearance and elimination rate are common outcomes of renal impairment. These alterations lead to a prolonged elimination half-life and an altered apparent volume of distribution for drugs. As a result, dosage adjustments are typically necessary to maintain optimal drug levels in the body.
However, dosage adjustments...
505
Dialysis01:27

Dialysis

Renal failure occurs when the kidneys lose their ability to filter waste products from the blood effectively. It can be classified into two types: acute renal failure (ARF) and chronic renal failure (CRF).
Acute kidney injury develops suddenly and can be caused by pre-renal causes (e.g., hypovolemia, shock), intrinsic renal causes (e.g., acute tubular necrosis), or post-renal causes (e.g., urinary obstruction). In contrast, chronic renal failure progresses gradually over time and is often...
1.6K
Electron Transport Chain: Complex I and II01:46

Electron Transport Chain: Complex I and II

The mitochondrial electron transport chain (ETC) is the main energy generation system in the eukaryotic cells. However, mitochondria also produce cytotoxic reactive oxygen species (ROS) due to the large electron flow during oxidative phosphorylation. While Complex I is one of the primary sources of superoxide radicals, ROS production by Complex II is uncommon and may only be observed in cancer cells with mutated complexes.
ROS generation is regulated and maintained at moderate levels necessary...
19.1K
The Electron Transport Chain01:30

The Electron Transport Chain

The electron transport chain or oxidative phosphorylation is an exothermic process in which free energy released during electron transfer reactions is coupled to ATP synthesis. This process is a significant source of energy in aerobic cells, and therefore inhibitors of the electron transport chain can be detrimental to the cell's metabolic processes.
Inhibitors of the electron transport chain
Rotenone, a widely used pesticide, prevents electron transfer from Fe-S cluster to ubiquinone or Q...
20.4K