Association of erythrocyte aldose reductase activity with diabetic complications in type 1 diabetes mellitus

Diabet Med. Jan-Feb 1993;10(1):33-8. doi: 10.1111/j.1464-5491.1993.tb01993.x.

Abstract

Erythrocyte aldose reductase was isolated and its activity measured in 72 Type 1 (insulin dependent) diabetic patients and 21 age and sex matched non-diabetic subjects. The diabetic patients were categorized into two groups in terms of presence (n = 29) or absence (n = 43) of severe diabetic complications. Age, sex, duration of diabetes and HbA1c levels were matched between the diabetic groups. Erythrocyte aldose reductase (mean +/- SEM) was increased in patients with Type 1 diabetes compared to the non-diabetic subjects (7.22 +/- 0.24 vs 5.66 +/- 0.19 Ul-erythrocytes-1, < 0.0001). There was a four-fold variation in its activity among the diabetic patients (3.38-12.23 Ul-erythrocytes-1). The enzyme activity was significantly higher in patients with complications than those without (8.17 +/- 0.39 vs 6.58 +/- 0.26 Ul-erythrocytes-1, p < 0.002). When the patients were stratified by duration of the disease, the enzyme activity was highest in patients who had developed complications with a duration of less than 20 years and lowest in those without complications for 20 years or longer (8.54 +/- 0.48 vs 6.46 +/- p +/- 0.33 Ul-erythrocytes-1, p < 0.002). Patients who had an aldose reductase activity greater than the mean +/- 2SD of that seen in non-diabetic controls were four times more likely to have diabetic complications than those whose enzyme activity fell within 2SD of non-diabetic individuals (p < 0.0005).(ABSTRACT TRUNCATED AT 250 WORDS)

Publication types

  • Comparative Study

MeSH terms

  • Adult
  • Aldehyde Reductase / blood*
  • Aldehyde Reductase / isolation & purification
  • Biomarkers / blood
  • Diabetes Mellitus, Type 1 / blood
  • Diabetes Mellitus, Type 1 / enzymology*
  • Diabetic Nephropathies / blood
  • Diabetic Nephropathies / enzymology*
  • Diabetic Nephropathies / epidemiology
  • Diabetic Neuropathies / blood
  • Diabetic Neuropathies / enzymology*
  • Diabetic Neuropathies / epidemiology
  • Diabetic Retinopathy / blood
  • Diabetic Retinopathy / enzymology*
  • Diabetic Retinopathy / epidemiology
  • Erythrocytes / enzymology*
  • Female
  • Glycated Hemoglobin A / analysis
  • Humans
  • Male
  • Prevalence
  • Reference Values

Substances

  • Biomarkers
  • Glycated Hemoglobin A
  • Aldehyde Reductase