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Diabetic Nephropathy01:28

Diabetic Nephropathy

Definition Diabetic nephropathy is a chronic kidney complication that results from prolonged hyperglycemia.Prevalence It is the most common cause of chronic kidney disease (CKD) and end-stage renal disease (ESRD) worldwide, affecting up to half of individuals with diabetes.Pathophysiology • Sustained hyperglycemia triggers multiple hemodynamic and metabolic changes in the kidney. • Early in the disease, increased renal blood flow and glomerular hyperfiltration occur due to afferent arteriolar...
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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...
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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...
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[Oxidative stress in nephrology].

Adrianna Pedzik1, Marek Paradowski, Jacek Rysz

  • 1Podstawowa Opieka Zdrowotna, Uniwersytecki Szpital Kliniczny nr 2 im. WAM - Centralny Szpital Weteranów, SPZOZ w Łodzi. apedzik@poczta.fm

Polski Merkuriusz Lekarski : Organ Polskiego Towarzystwa Lekarskiego
|April 8, 2010
PubMed
Summary

Reactive oxygen species (ROS) significantly impact kidney diseases, causing damage through oxidative stress. Current therapies for chronic renal failure (CRF) may worsen this imbalance, highlighting a critical challenge in nephro-substitute treatments.

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Area of Science:

  • Nephrology
  • Biochemistry
  • Pathophysiology

Background:

  • Reactive oxygen species (ROS) are implicated in the pathophysiology of numerous diseases, particularly nephropathies.
  • Oxidative stress and antioxidant imbalance contribute to kidney damage in conditions like glomerulonephritis, acute renal failure, hypertensive nephropathy, diabetic nephropathy, and urinary system infections.

Purpose of the Study:

  • To review the role of ROS in various kidney diseases.
  • To highlight the challenges associated with nephro-substitute therapy in chronic renal failure (CRF).

Main Methods:

  • Literature review of scientific publications on ROS and nephropathies.
  • Analysis of the impact of ROS on mesangial cells, renal cells, and vascular resistance.
  • Examination of oxidative stress markers in diabetic nephropathy and urinary system infections.

Main Results:

  • ROS-induced damage to mesangial cells and renal cells is a common mechanism in various nephropathies.
  • Oxidant/antioxidant imbalance is a key feature of diabetic nephropathy and other kidney conditions.
  • Current nephro-substitute therapies for CRF may induce free radical reactions and decrease plasma antioxidant potential.

Conclusions:

  • ROS play a critical role in the pathogenesis of diverse kidney diseases.
  • The detrimental effects of ROS on kidney structure and function are significant.
  • Existing CRF therapies present challenges related to oxidative stress, necessitating further research for optimal treatment.