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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
Summary
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.