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Oxidant stress in renal pathophysiology

M Ruhul Abid1, Mohammed S Razzaque, Takashi Taguchi

  • 1Division of Molecular and Vascular Medicine, Department of Medicine, and Vascular Biology Research Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Mass., USA.

Contributions to Nephrology
|May 25, 2005
PubMed

Insights

Oxidant stress, involving reactive oxygen and nitrogen species, plays a key role in kidney disease development. Understanding these molecular mechanisms is crucial for treating renal injuries.

Area of Science:

  • Nephrology
  • Molecular Biology
  • Pathophysiology

Background:

  • The molecular basis of renal injuries is not fully understood despite advances in identifying contributing factors.
  • Recent research highlights the significant involvement of oxidant stress in various renal diseases.
  • Oxidant stress involves the overproduction of reactive oxygen species (ROS) and reactive nitrogen species (RNS), and altered antioxidant enzyme activity.

Purpose of the Study:

  • To briefly present the relevance of oxidant stress in the pathogenesis of various renal diseases.

Main Methods:

  • Review of recent studies documenting the role of oxidant stress in renal diseases.
  • Analysis of molecular mechanisms including ROS/RNS production and antioxidant enzyme modulation.
  • Examination of downstream signaling pathways and cellular responses.

Main Results:

  • Oxidant stress activates transcription factors, leading to the synthesis/release of inflammatory mediators and extracellular matrix proteins.
  • These molecular changes disrupt the renal microenvironment, activating signaling cascades that propagate injury.
  • Complex interactions between signaling pathways influence the disease's nature and clinical course.

Conclusions:

  • Oxidant stress is a critical factor in the pathogenesis of diverse renal diseases.
  • Understanding the molecular interplay of oxidant stress is essential for developing therapeutic strategies for renal injuries.

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