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


Journal of Clinical & Experimental Ophthalmology

Author(s): Hamada Y, Kitoh R, Raskin P

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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)
This article was published in Diabet Med and referenced in Journal of Clinical & Experimental Ophthalmology

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