期刊
DIABETOLOGIA
卷 64, 期 11, 页码 2425-2431出版社
SPRINGER
DOI: 10.1007/s00125-021-05547-8
关键词
Adipose tissue; Continuous glucose monitoring; GIP; Glucose-dependent insulinotropic polypeptide; Glycaemic control; Glycaemic time in range; Hypoglycaemia; Hypoglycaemic events; Insulin resistance; Insulin sensitivity
资金
- Leona M. andHarry B. Helmsley Charitable Trust andAase og EjnarDanielsens Fond
In men with type 1 diabetes, a 6-day subcutaneous GIP infusion did not have a convincing effect on overall time in range, but increased time in the tight glycemic range during the day by approximately 2 hours per day.
Aims/hypothesis Type 1 diabetes is characterised by reduced glucagon response to hypoglycaemia, increasing the risk of insulin treatment-associated hypoglycaemia known to hamper glycaemic control. We previously reported a glucagonotropic effect of exogenous glucose-dependent insulinotropic polypeptide (GIP) during insulin-induced hypoglycaemia in individuals with type 1 diabetes. Here we investigate the effect of a 6-day s.c. GIP infusion on time in glycaemic range as assessed by continuous glucose monitoring (CGM) in individuals with type 1 diabetes. Methods In a randomised, placebo-controlled, double-blind crossover study, time in glycaemic range (assessed by double-blinded CGM) was evaluated in 20 men with type 1 diabetes (18-75 years, stable insulin treatment >= 3 months, diabetes duration 2-15 years, fasting plasma C-peptide below 200 pmol/l, BMI 20-27 kg/m(2), HbA(1c) <69 mmol/mol [8.5%]) during two x 6 days of continuous s.c. GIP (6 pmol kg(-1) min(-1)) and placebo (saline [154 mmol/l NaCl]) infusion, respectively, with an interposed 7-day washout period. The primary outcome was glycaemic time below range, time in range and time above range. Results There were no significant differences in time below range (<3.9 mmol/l, p = 0.53) or above range (>10 mmol/l, p = 0.32) during night-time or daytime, in mean glucose, or in hypoglycaemic events as assessed by CGM. GIP altered neither self-reported hypoglycaemia nor safety measures. Compared with placebo, GIP significantly increased time in tight range (3.9-7.8 mmol/l) during daytime (06:00-23:59 hours) by [mean +/- SEM] 11.2 +/- 5.1% [95% CI 0.41, 21.9] (p = 0.02). Conclusions/interpretation Six-day s.c. GIP infusion in men with type 1 diabetes did not procure convincing effect on overall time in range, but increased time in tight glycaemic range during daytime by similar to 2 h per day.
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