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Quantitative Estimation of Insulin Sensitivity in Type 1 Diabetic Subjects Wearing a Sensor-Augmented Insulin Pump

SCHIAVON, Michele ; MAN, Chiara Dalla ; KUDVA, Yogish C ; BASU, Ananda ; COBELLI, Claudio

Diabetes care, 2014, Vol.37 (5), p.1216-1223 [Periódico revisado por pares]

Alexandria, VA: American Diabetes Association

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Título:
Quantitative Estimation of Insulin Sensitivity in Type 1 Diabetic Subjects Wearing a Sensor-Augmented Insulin Pump
Autor: SCHIAVON, Michele ; MAN, Chiara Dalla ; KUDVA, Yogish C ; BASU, Ananda ; COBELLI, Claudio
Assuntos: Adult ; Advances in Artificial Pancreas Development ; Biological and medical sciences ; Blood Glucose - metabolism ; Diabetes ; Diabetes Mellitus, Type 1 - blood ; Diabetes Mellitus, Type 1 - drug therapy ; Diabetes Mellitus, Type 1 - physiopathology ; Diabetes. Impaired glucose tolerance ; Endocrine pancreas. Apud cells (diseases) ; Endocrinopathies ; Etiopathogenesis. Screening. Investigations. Target tissue resistance ; Female ; Glucose ; Glycemic index ; Humans ; Hypoglycemic Agents - administration & dosage ; Hypoglycemic Agents - therapeutic use ; Insulin ; Insulin - administration & dosage ; Insulin - blood ; Insulin - therapeutic use ; Insulin Infusion Systems ; Insulin Resistance - physiology ; Male ; Mathematics ; Meals ; Medical sciences ; Metabolic diseases ; Middle Aged ; Monitoring systems ; Reproducibility of Results ; Time Factors ; Treatment Outcome
É parte de: Diabetes care, 2014, Vol.37 (5), p.1216-1223
Notas: See accompanying articles, pp. 1182, 1184, 1191, 1198, 1204, 1212, and 1224.
Descrição: The goal was to develop a new index of insulin sensitivity in patients with type 1 diabetes estimated from continuous glucose monitoring (CGM) and subcutaneous insulin delivery data under carefully controlled conditions. The database consists of 12 subjects with type 1 diabetes, studied during breakfast, lunch, and dinner, in a clinical research unit, wearing both subcutaneous insulin pump and CGM device. Frequent blood samples were drawn for measurements of plasma glucose and insulin concentrations in order to estimate insulin sensitivity with the oral minimal model (SI(MM)). The new index of insulin sensitivity (SI(SP)) was calculated with a simple algebraic formula for each meal, using only CGM and insulin pump data and compared with SI(MM). SI(SP) was well correlated with SI(MM) (r = 0.825; P < 10(-8)), and diurnal pattern was also similar to SI(MM). A novel method for estimating insulin sensitivity in subjects with type 1 diabetes on sensor-augmented insulin pump therapy has been presented. This new index correlates well with the reference oral minimal model estimate of insulin sensitivity. The knowledge of patient-specific insulin sensitivity and its diurnal variation can help in optimizing insulin therapy in type 1 diabetes and could also inform next-generation closed-loop control systems.
Editor: Alexandria, VA: American Diabetes Association
Idioma: Inglês

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Quantitative Estimation of Insulin Sensitivity in Type 1 Diabetic Subjects Wearing a Sensor-Augmented Insulin Pump

SCHIAVON, Michele ; MAN, Chiara Dalla ; KUDVA, Yogish C ; BASU, Ananda ; COBELLI, Claudio

Alexandria, VA: American Diabetes Association

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