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Diabetic Nephropathy

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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Comparative Proteomic Analysis of Whole Kidney, Medulla, and Cortical Tubules in Diabetic Pathogenesis of Kidney Injury in Mice

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STUDIES ON GLYCOGEN NEPHROSIS IN ALLOXAN-TREATED DIABETIC RATS.

G W Curtis¹, S L Robbins, I Glickman

¹Mallory Institute of Pathology, Boston City Hospital, and Tufts College Dental School, Boston.

The Journal of Experimental Medicine

|October 30, 2009

Summary

Alloxan-induced diabetes in rats revealed kidney glycogen deposition (glycogen nephrosis) in 44% of animals. This condition, linked to high blood sugar, appears to be a reversible lesion in diabetic kidney disease.

Keywords:

ALLOXAN/effects DIABETES MELLITUS/etiology and pathogenesis GLYCOGEN KIDNEYS/diseases

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A Model of Chronic Nutrient Infusion in the Rat

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Published on: August 14, 2013

Area of Science:

Nephrology
Endocrinology
Diabetology

Background:

Alloxan is a common agent used to induce experimental diabetes in rodents.
Diabetic nephropathy is a significant complication of diabetes mellitus, characterized by kidney damage.

Purpose of the Study:

To investigate the occurrence and characteristics of glycogen nephrosis in alloxan-induced diabetic rats.
To determine the relationship between hyperglycemia levels and the development of glycogen nephrosis.

Main Methods:

Albino rats were injected with varying doses of alloxan to induce diabetes.
Hyperglycemic rats were monitored, and postmortem kidney examinations were performed.
Glycogen deposition in renal tubules was assessed histologically.

Main Results:

Glycogen deposition in the loops of Henle and convoluted tubules (glycogen nephrosis) was observed in 44% of diabetic rats.
Glycogen nephrosis was consistently found when terminal blood sugar levels exceeded 350 mg/dL.
No intercapillary glomerulosclerosis was observed within the 32-week study period.
The presence of glycogen nephrosis did not correlate with initial or peak blood sugar levels.

Conclusions:

Glycogen nephrosis in alloxan-induced diabetes is primarily dependent on terminal hyperglycemia levels.
A threshold of 350 mg/dL appears critical for the development of this renal lesion.
The findings suggest that glycogen nephrosis may be a reversible condition in the context of experimental diabetes.