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Pol Arch Med Wewn. 2001 Sep;106(3):793-800.

[Insulinemia--a marker of early diagnosis and control of efficacy of treatment of type II diabetes].

[Article in Polish]

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  • 1Katedra i Klinika Endokrynologii Collegium Medicum Uniwersytet Jagielloński w Krakowie.


Metabolic Syndrome X defined by Reaven is caused by peripheral insuline receptor resistance, leads to hyperinsulinemia regarded as a cause of secondary dyslipidemia, hypertension, hemostatic disturbances, atherosclerosis and insulin as a growth factor takes part in carcinogenesis. Depending on a contribution of the primary risk factors of type 2 Diabetes Mellitus (2-DM) mainly genetic factors and obesity--an independent cause of insulin receptor resistance--glucose intolerance and 2-DM may overlap the Syndrome X. The aims of these studies were to determine in cross-sectional investigation a plasma insulin concentration in subjects aged over 35 years and to assess the clinical usefulness of insulinemia in early diagnosis of diabetes type 2. Investigations were carried out in Krakow town's district with 200,000 inhabitants, out of those 3060 randomly selected subjects (1720 females and 1340 males aged over 35 years) took part in the Polish Multicenter Study on Diabetes Epidemiology (PMSDE) with protocol and methods previously presented. Glucose concentration was determine by enzymatic method, insuline in plasma by IRMA method using ready kits produced by the Swierk-Poland. Logistic multiple regression model was used to estimate the effect of risk factors on the development of glucose intolerance, Chi square test, Fisher test and Mann-Whitney test were used for statistical analysis by means of statistical package BMPD. Fasting insulinemia in persons with normal glucose tolerance and body weight (BMI < 25 and glycemia < 6.1 mmol/l) in subpopulation aged over 35 years was 5.73 (SD = 3.99) in men and 7.05 (SD = 4.67) microU/ml in women. These values were positively correlated with BMI and at the range 25-30 and > 30 increased by 50 and 100% responsively and in 2-nd h in OGTT by five-times. In the persons with glucose intolerance and new-diagnosed 2-DM insulinemia increased 2-3 fold depending on BMI, and gender. In the subgroup with 2-DM and BMI > 30, insulinemia in 2 h-OGTT treated values 152 (SD = 90) in women and 112 (SD = 83.4) microU/ml in men. Obesity and insulinemia in 2 h-OGTT in multiple analysis have been identified as a strong predictors and risk factors of impaired glucose intolerance (IGT) 2-DM fasting insulinemia may be useful as an indicator of the peripheric insulin receptor resistance. The results lead to the conclusions that determination of the plasma insulin concentration may be useful in early diagnosis of IGT and diabetes type 2, and should be monitored in the course of non-pharmacological and pharmacological treatment 2-DM. One of the main goals in the course of treatment of obesity and early phases of the 2-DM should be normalization or at least reduction of hyperinsulinemia. Insulinemia may be regarded also as an important criterion for selection of the oral antidiabetic drugs.

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