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https://doi.org/10.3760/cma.j.issn.1000-6699.2017.07.002
Copy DOIPublication Date: Jul 25, 2017 |
Objective To explore the application of body mass index(BMI)and the increased value of postpradial 2h C peptide [2hCP minus fasting C-peptide(FCP), ΔCP]as indexes to adjust the antidiabetic plan after intensive blood glucose control in poorly controlled patients with type 2 diabetes mellitus(T2DM). Methods The insulin intensive therapy with injections of insulin four times a day was applied to 156 type 2 diabetic in-patients with poorly glycemic control. Islet function was evaluated after glucostasis in all patients. According to FCP≥1 ng/ml, addition of basal insulin to oral antidiabetic drugs was applied(as plan A, A group). The insulin intensive therapy was continued if FCP<1ng/ml(as plan B, B group). The treatment plan was adjusted from plan A to B when plasma glucose was poorly controlled after a week(as B group). The baseline data of sex, age, diabetes duration, BMI, fasting plasma glucose(FPG), 2 hours postpradial plasma glucose(2hPG), HbA1C,triglyceride(TG), total cholesterol, high density lipoprotein-cholesterol, low density lipoprotein-cholesterol, FCP, 2hCP, 2hCP/FCP, and ΔCP were analyzed. Insulin dose, the incidence of hypoglycemia, and the targeted rate of glucose control were compared between two groups before grouping and one month after treatment. Results The results showed that BMI, TG, FCP, 2hCP, 2hCP/FCP, and ΔCP in A group were higher than those in B group(P<0.01), while FPG, 2hPG and HbA1C were lower(P<0.01). There were no differences in insulin dose, the incidence of hypoglycemia, the targeted rate of FPG and 2hPG between two groups when grouping. After one-month treatment, insulin dose and the incidence of hypoglycemia in group A were lower than those in group B, while the targeted rates of FPG and 2hPG in group A were better than group B(P<0.05 or P<0.01). The results of binary logistic regression analysis showed that BMI and ΔCP were independent factors for choosing antidiabetic plan A(β=0.26, 0.90, P<0.01). The areas under receiver operator characteristic curve of BMI and ΔCP were 0.72 and 0.84, respectively(P<0.01), and their cut-off points to choose antidiabetic plan A were 23.14 kg/m2 and 1.32 ng/ml. Conclusions BMI and ΔCP can be used as the predictive indexes for choosing an antidiabetic plan for poorly controlled type 2 diabetic patients. (Chin J Endocrinol Metab, 2017, 33: 548-551) Key words: Diabetes mellitus, type 2; Body mass index; C-peptide; Antidiabetic plan
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