scholarly journals A comparison among three maximal mathematical models of the glucose-insulin system

PLoS ONE ◽  
2021 ◽  
Vol 16 (9) ◽  
pp. e0257789
Author(s):  
Marcello Pompa ◽  
Simona Panunzi ◽  
Alessandro Borri ◽  
Andrea De Gaetano
Keyword(s):  
Type 1 Diabetes ◽  
Glucose Metabolism ◽  
Control Algorithms ◽  
Subcutaneous Insulin ◽  
Mathematical Representations ◽  
Model Equations ◽  
Diabetic Individual ◽  
High Level ◽  
Parameter Values

The most well-known and widely used mathematical representations of the physiology of a diabetic individual are the Sorensen and Hovorka models as well as the UVAPadova Simulator. While the Hovorka model and the UVAPadova Simulator only describe the glucose metabolism of a subject with type 1 diabetes, the Sorensen model was formulated to simulate the behaviour of both normal and diabetic individuals. The UVAPadova model is the most known model, accepted by the FDA, with a high level of complexity. The Hovorka model is the simplest of the three models, well documented and used primarily for the development of control algorithms. The Sorensen model is the most complete, even though some modifications were required both to the model equations (adding useful compartments for modelling subcutaneous insulin delivery) and to the parameter values. In the present work several simulated experiments, such as IVGTTs and OGTTs, were used as tools to compare the three formulations in order to establish to what extent increasing complexity translates into richer and more correct physiological behaviour. All the equations and parameters used for carrying out the simulations are provided.

1964-P: Type 1 Diabetes: Sclerostin Resistance Improves Glucose Metabolism and Protects Bone Mass

Diabetes ◽  
2019 ◽  
Vol 68 (Supplement 1) ◽  
pp. 1964-P
Author(s):  
GIULIA LEANZA ◽  
YAEL ALIPPE ◽  
SEUNG-YON LEE ◽  
ROCKY STROLLO ◽  
PAOLO POZZILLI ◽  
...  
Keyword(s):  
Type 1 Diabetes ◽  
Glucose Metabolism ◽  
Bone Mass ◽  
P Type

712-P: Safety and Efficacy of 36 Hours Prolonged Fasting on Glucose Metabolism in People with Type 1 Diabetes: A Crossover Trial

Diabetes ◽  
2020 ◽  
Vol 69 (Supplement 1) ◽  
pp. 712-P
Author(s):  
OTHMAR MOSER ◽  
NORBERT J. TRIPOLT ◽  
PETER N. PFERSCHY ◽  
ANNA OBERMAYER ◽  
HARALD KOJZAR ◽  
...  
Keyword(s):  
Type 1 Diabetes ◽  
Glucose Metabolism ◽  
Crossover Trial ◽  
Prolonged Fasting ◽  
Safety And Efficacy

scholarly journals Continuous subcutaneous insulin infusion alters microRNA expression and glycaemic variability in children with type 1 diabetes

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Emma S. Scott ◽  
Andrzej S. Januszewski ◽  
Luke M. Carroll ◽  
Gregory R. Fulcher ◽  
Mugdha V. Joglekar ◽  
...  
Keyword(s):  
Type 1 Diabetes ◽  
Continuous Subcutaneous Insulin Infusion ◽  
Insulin Infusion ◽  
Diabetes Diagnosis ◽  
Subcutaneous Insulin ◽  
Glycaemic Variability ◽  
Altered Expression ◽  
C Peptide

AbstractTo determine whether continuous subcutaneous insulin infusion (CSII) vs. multiple daily injections (MDI) therapy from near-diagnosis of type 1 diabetes is associated with reduced glycaemic variability (GV) and altered microRNA (miRNAs) expression. Adolescents (74% male) within 3-months of diabetes diagnosis (n = 27) were randomized to CSII (n = 12) or MDI. HbA1c, 1-5-Anhydroglucitol (1,5-AG), high sensitivity C-peptide and a custom TaqMan qPCR panel of 52 miRNAs were measured at baseline and follow-up (median (LQ-UQ); 535 (519–563) days). There were no significant differences between groups in baseline or follow-up HbA1c or C-peptide, nor baseline miRNAs. Mean ± SD 1,5-AG improved with CSII vs. MDI (3.1 ± 4.1 vs. − 2.2 ± − 7.0 mg/ml respectively, P = 0.029). On follow-up 11 miRNAs associated with diabetes vascular complications had altered expression in CSII-users. Early CSII vs. MDI use is associated with lower GV and less adverse vascular-related miRNAs. Relationships with future complications are of interest.

scholarly journals Effectiveness of Multiple Daily Injections or Continuous Subcutaneous Insulin Infusion for Children with Type 1 Diabetes Mellitus in Clinical Practice

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Chun-xiu Gong ◽  
Li-ya Wei ◽  
Di Wu ◽  
Bing-yan Cao ◽  
Xi Meng ◽  
...  
Keyword(s):  
Type 1 Diabetes ◽  
Glucose Control ◽  
Continuous Subcutaneous Insulin Infusion ◽  
Insulin Infusion ◽  
Blood Glucose Control ◽  
Insulin Dosage ◽  
Subcutaneous Insulin ◽  
Multiple Daily Injections ◽  
Hba1c Levels

Aims. To determine whether multiple daily injections (MDIs) or continuous subcutaneous insulin infusion (CSII) contributes to better glucose control in children with different type 1 diabetes duration.Methods. Subjects were grouped according to early (≤1 year after disease onset; 1A) or late (1–3 years after onset; 2A) MDIs/CSII treatment initiation. Corresponding control groups (1B, 2B) received insulin injections twice daily.Results. HbA1c levels were consistently lower in group 1A than in group 1B (6 months (T2): 7.37% versus 8.21%; 12 months (T3): 7.61% versus 8.41%; 24/36 months (T4/T5): 7.61% versus 8.72%; allP<0.05), but were lower in group 2A than in group 2B only at T2 (8.36% versus 9.19%;P=0.04). Levels were lower in group 1A than in group 2A when disease duration was matched (7.61% versus 8.49%;P<0.05). Logistic regression revealed no correlation between HbA1c level and MDIs/CSII therapy. HbA1c levels were only negatively related to insulin dosage.Conclusions. Blood glucose control was better in patients receiving MDIs/CSII than in those receiving conventional treatment. Early MDIs/CSII initiation resulted in prolonged maintenance of low HbA1c levels compared with late initiation. MDIs/CSII therapy should be combined with comprehensive management.

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