Effects of Helicobacter pylori on blood glucose fluctuation in type 2 diabetic patients

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To investigate the effects of Helicobacter pylori (Hp) on blood glucose fluctuation in type 2 diabetic mellitus. 130 type 2 diabetic patients were selected, 72 patients with Hp infection and 58 without Hp infection. Relevant clinical data: blood pressure, body mass index, cholesterol, triglyceride, low density lipoprotein cholesterol, high density lipoprotein cholesterol, glycosylated hemoglobin, insulin resistance index, liver function, and renal function were collected. The data of blood glucose levels at 7 time points, 6 - 7 am, 9 - 10 am, 11 - 12 am, 14 - 15 pm, 17 - 18 pm, 19 - 20 pm, and 22 - 23 pm in 3 days, totally 21 data, were collected. And input into the OTDMS data analysis software to evaluate the blood glucose fluctuation indexes: standard deviation of mean blood glucose (SDBG), mean amplitude of glycemic excursions (MAGE), large amplitude of glycemic excursions (LAGE). There were no significant differences in age, course of disease, blood pressure, body mass index, cholesterol, triglyceride, low density lipoprotein cholesterol, glycosylated hemoglobin, and insulin resistance index between these 2 groups (all P > 0.05). The levels of MBG, SDBG, MAGE, LAGE, (mmol/L: 9.0 +/- 1.1 vs 7.6 +/- 0.5, 3.3 +/- 1.1 vs 1.7 +/- 0.5, 6.7 +/- 4.5 vs 3.0 +/- 1.1, 8.6 +/- 3.8 vs 4.2 +/- 1.5, all P < 0.05) and incidence of hypoglycemia [16.6% (12/72) vs 5.1% (3/58), P < 0.05] were all higher in the Hp positive group than in the Hp negative group. Hp infection has a significant effect on the daily blood glucose level and blood glucose fluctuation in the patients with type 2 diabetes.