scholarly journals Day-to-Day Variations in Fasting Plasma Glucose Do Not Influence Gastric Emptying in Subjects With Type 1 Diabetes

2020 ◽  
Author(s):  
Lea Aigner ◽  
Björn Becker ◽  
Sonja Gerken ◽  
Daniel R. Quast ◽  
Juris J. Meier ◽  
...  

<b>Objective:</b> Acute experimental variations in glycemia decelerate (hyperglycemia) or accelerate (hypoglycemia) gastric emptying. Whether spontaneous variations in fasting plasma glucose (FPG) have a similar influence on gastric emptying is yet unclear. <p><b>Research design and methods:</b> Gastric emptying of a mixed meal was prospectively studied three times in 20 patients with type 1 diabetes and 10 healthy subjects with normal glucose tolerance using a <sup>13</sup>C-CO<sub>2</sub> octanoate breath test with Wagner-Nelson analysis. The velocity of gastric emptying was related to fasting plasma glucose (FPG) measured before the test (grouped as low, intermediate, or high). In addition, gastric emptying data from 255 patients with type 1 diabetes studied for clinical indications were compared by tertiles of baseline FPG. </p> <p><b>Results:</b> Despite marked variations in FPG (by 4.8 (3.4; 6.2) mmol/l), gastric emptying did not differ between the three prospective examinations in patients with type 1 diabetes (D T<sub>1/2</sub> between highest and lowest FPG: 1 [95 % CI: -35; 37] min; p = 0.90). The coefficient of variation for T<sub>1/2 </sub>determined three times was 21.0 %. Similar results at much lower variations in FPG were found in healthy subjects. In the cross-sectional analysis, gastric emptying did not differ between the tertiles of FPG (D T<sub>1/2</sub> between highest and lowest FPG: 7 [95 % CI: - 10; 23] min; p = 0.66), when FPG varied by 7.2 (6.7; 7.8) mmol/l. However, higher HbA<sub>1c</sub> was significantly related to slower gastric emptying.</p> <p><b>Conclusions:</b> Day-to-day variations in FPG not induced by therapeutic measures do not influence gastric emptying significantly. These findings are in contrast with those obtained after rapidly clamping plasma glucose in the hyper- or hypoglycemic concentrations range and challenge the clinical importance of short-term glucose fluctuations for gastric emptying in type 1-diabetic patients. Rather, chronic hyperglycemia is associated with slowed gastric emptying.</p>

2020 ◽  
Author(s):  
Lea Aigner ◽  
Björn Becker ◽  
Sonja Gerken ◽  
Daniel R. Quast ◽  
Juris J. Meier ◽  
...  

<b>Objective:</b> Acute experimental variations in glycemia decelerate (hyperglycemia) or accelerate (hypoglycemia) gastric emptying. Whether spontaneous variations in fasting plasma glucose (FPG) have a similar influence on gastric emptying is yet unclear. <p><b>Research design and methods:</b> Gastric emptying of a mixed meal was prospectively studied three times in 20 patients with type 1 diabetes and 10 healthy subjects with normal glucose tolerance using a <sup>13</sup>C-CO<sub>2</sub> octanoate breath test with Wagner-Nelson analysis. The velocity of gastric emptying was related to fasting plasma glucose (FPG) measured before the test (grouped as low, intermediate, or high). In addition, gastric emptying data from 255 patients with type 1 diabetes studied for clinical indications were compared by tertiles of baseline FPG. </p> <p><b>Results:</b> Despite marked variations in FPG (by 4.8 (3.4; 6.2) mmol/l), gastric emptying did not differ between the three prospective examinations in patients with type 1 diabetes (D T<sub>1/2</sub> between highest and lowest FPG: 1 [95 % CI: -35; 37] min; p = 0.90). The coefficient of variation for T<sub>1/2 </sub>determined three times was 21.0 %. Similar results at much lower variations in FPG were found in healthy subjects. In the cross-sectional analysis, gastric emptying did not differ between the tertiles of FPG (D T<sub>1/2</sub> between highest and lowest FPG: 7 [95 % CI: - 10; 23] min; p = 0.66), when FPG varied by 7.2 (6.7; 7.8) mmol/l. However, higher HbA<sub>1c</sub> was significantly related to slower gastric emptying.</p> <p><b>Conclusions:</b> Day-to-day variations in FPG not induced by therapeutic measures do not influence gastric emptying significantly. These findings are in contrast with those obtained after rapidly clamping plasma glucose in the hyper- or hypoglycemic concentrations range and challenge the clinical importance of short-term glucose fluctuations for gastric emptying in type 1-diabetic patients. Rather, chronic hyperglycemia is associated with slowed gastric emptying.</p>


Diabetes Care ◽  
2020 ◽  
pp. dc201660
Author(s):  
Lea Aigner ◽  
Björn Becker ◽  
Sonja Gerken ◽  
Daniel R. Quast ◽  
Juris J. Meier ◽  
...  

2013 ◽  
Vol 27 (6) ◽  
pp. 593-596
Author(s):  
Katarzyna Siewko ◽  
Anna Popławska-Kita ◽  
Beata Telejko ◽  
Rafał Maciulewski ◽  
Anna Zielińska ◽  
...  

Diabetes ◽  
2018 ◽  
Vol 67 (Supplement 1) ◽  
pp. 391-P
Author(s):  
CAROL H. WYSHAM ◽  
WENDY LANE ◽  
STEEN LADELUND ◽  
DENIZ TUTKUNKARDAS ◽  
SIMON HELLER

2014 ◽  
Vol 25 (2) ◽  
pp. 56-59
Author(s):  
Mahmudul Huque ◽  
Tofail Ahmed ◽  
Liaqat Ali ◽  
Rahelee Zinnat ◽  
Hajera Mahtab ◽  
...  

Diabetic vascular disease is conveniently divided into two main categories: microvascular diseases and macrovascular diseases. The changes involving the smallest blood vessels - the capillary and pre-capillary arteriolesare microvascular changes. The cross sectional case-control study was done on forty young diabetic patients for their platelet aggregation response to ADP, plasma fibrinogen and vWF in relation to the age and BMI matched 10 nondiabetic control subjects (Age in years : 23.7 ± 2.26 in control vs 24.33 ± 3.29 in subjects, and BMI in kg/m2. The lipid profile, C-peptide, C-peptide: glucose and other anthropometric measurements of the diabetic and control subjects were also measured to find out any possible correlation. The platelet aggregation with ADP in diabetics was found to be significantly higher (in diabetics 76.56 ± 16.92 percent compared to controls 62.90 ± 12.35 percents; (P< 0.27). Plasma fibrinogen and plasma von Willebrand factors were found to be significantly higher in young diabetics compared to the non-diabetic counterparts (Plasma fibrinogen in mg/l; 1075.90 ± 455.16 in control vs 1569.15 ± 731.42 in diabetic, P<0.048; plasma vWF in iu/ml; 1.372 ± 0.340 in control vs 1.884 ± 0.51 in diabetic, P<0.001). Fasting plasma glucose was higher and C-peptide - glucose ratio lower in diabetic subjects compared to the controls (Fasting plasma glucose in mmol/l; 3.48 ± 0.38 in control vs 16.02 ± 8.58 in diabetic; C-peptide-glucose ratio 0.426 ± 0.133 in controls vs 0.116 ± 0.105 in diabetics, P<.001). Thus hyperglycemia, endothelial dysfunction, elevated vWF and insulin resistance were supposed to be interlinked. DOI: http://dx.doi.org/10.3329/medtoday.v25i2.17920 Medicine Today 2013 Vol.25(2): 56-59


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Agyei Helena Lartey ◽  
Xiaona Li ◽  
Zhongqi Li ◽  
Qun Zhang ◽  
Jianming Wang

Abstract Background Fasting plasma glucose (FPG) variability is a significant predictor of mortality, especially in patients with poor glycemic control. This study aimed to explore the temporal age- and sex-specific profiles of temporal FPG variability in a Chinese population undergoing routine health screening and to guide the development of targeted public health interventions for the prevention and control of diabetes. Methods In this cross-sectional study, we used a general linear model to compare differences in temporal FPG values between sexes and across age groups in 101,886 Nanjing residents who underwent a routine physical health examination at the Health Management Center, the First Affiliated Hospital of Nanjing Medical University, in 2018. The variability of FPG as a function of time, age, and sex, independently and in combination, was analyzed. Results The participants included 57,455 (56.4%) males and 44,431 (43.6%) females, with a mean ± SD age of 42.8 ± 15.0 years. The average ± SD FPG level was 5.5 ± 1.1 mmol/L. The monthly variation contributed to 22% of the overall FPG variability. A significant main effect for the age group was observed (F = 7.39, P < 0.05), with an excellent fitting effect (Eta-squared =0.15). The variability of FPG showed sex differences in the percentage difference of the coefficient of variation, which was 34.1% higher in males than females. There were significant interaction effects for month*age*sex and day*age*sex. Conclusions Temporal variability in FPG is evident in the general Chinese population and is affected by both age and sex. To avoid complications associated with FPG variability, interventions should be directed at females and males at specific ages for optimal control of FPG variability and to reduce the risk of diabetes and cardiovascular events.


Metabolism ◽  
2008 ◽  
Vol 57 (2) ◽  
pp. 299-303 ◽  
Author(s):  
Kentaro Toyoda ◽  
Mitsuo Fukushima ◽  
Rie Mitsui ◽  
Norio Harada ◽  
Hidehiko Suzuki ◽  
...  

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Enrico Borrelli ◽  
Domenico Grosso ◽  
Mariacristina Parravano ◽  
Eliana Costanzo ◽  
Maria Brambati ◽  
...  

AbstractThe aim of this study was to measure macular perfusion in patients with type 1 diabetes and no signs of diabetic retinopathy (DR) using volume rendered three-dimensional (3D) optical coherence tomography angiography (OCTA). We collected data from 35 patients with diabetes and no DR who had OCTA obtained. An additional control group of 35 eyes from 35 healthy subjects was included for comparison. OCTA volume data were processed with a previously presented algorithm in order to obtain the 3D vascular volume and 3D perfusion density. In order to weigh the contribution of different plexuses’ impairment to volume rendered vascular perfusion, OCTA en face images were binarized in order to obtain two-dimensional (2D) perfusion density metrics. Mean ± SD age was 27.2 ± 10.2 years [range 19–64 years] in the diabetic group and 31.0 ± 11.4 years [range 19–61 years] in the control group (p = 0.145). The 3D vascular volume was 0.27 ± 0.05 mm3 in the diabetic group and 0.29 ± 0.04 mm3 in the control group (p = 0.020). The 3D perfusion density was 9.3 ± 1.6% and 10.3 ± 1.6% in diabetic patients and controls, respectively (p = 0.005). Using a 2D visualization, the perfusion density was lower in diabetic patients, but only at the deep vascular complex (DVC) level (38.9 ± 3.7% in diabetes and 41.0 ± 3.1% in controls, p = 0.001), while no differences were detected at the superficial capillary plexus (SCP) level (34.4 ± 3.1% and 34.3 ± 3.8% in the diabetic and healthy subjects, respectively, p = 0.899). In conclusion, eyes without signs of DR of patients with diabetes have a reduced volume rendered macular perfusion compared to control healthy eyes.


BMJ Open ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. e041269
Author(s):  
Tullaya Sitasuwan ◽  
Raweewan Lertwattanarak

ObjectivesAbout 11%–30% of individuals with impaired fasting plasma glucose (IFG) have type 2 diabetes mellitus (T2DM), diagnosed by the 75 g oral glucose tolerance test (75 g OGTT). This study investigated (1) the prevalence and cut-off levels for fasting plasma glucose (FPG) and glycated haemoglobin A1c (HbA1c) in IFG individuals that most effectively predict the presence of T2DM diagnosed by a 75 g OGTT; (2) the predictors associated with T2DM; and (3) the pathophysiological characteristics of patients with IFG.Materials and methodsA single-centre, cross-sectional study was conducted in a primary care setting. A standard 75 g OGTT was performed on 123 subjects with IFG. Their beta-cell function and insulin resistance were calculated through plasma glucose and insulin levels monitored during the 75 g OGTT.ResultsIn the IFG subjects, the prevalence of T2DM using the 2-hour postload plasma glucose (2hPG) criterion was 28.5%. Pre-diabetes and normal glucose metabolism were found in 48.7% and 22.8%, respectively, by 75 g OGTT. An HbA1c level ≥6.0% or FPG ≥5.9 mmol/L were the optimal cut-off thresholds for the prediction of the presence of T2DM. HbA1c had a sensitivity of 76.7% and specificity of 55.7% (95% CI 57.7% to 90.1% and 95% CI 43.3% to 67.6%, respectively), while FPG had a sensitivity of 85.7% and specificity of 23.9% (95% CI 69.7% to 95.2% and 95% CI 15.4% to 34.1%, respectively). The presence of metabolic syndrome, a higher HbA1c and higher FPG levels were associated with the risk of T2DM in the Thai IFG population.ConclusionsAlmost one-third of the people with IFG had T2DM diagnosed by the 2hPG criterion. HbA1c was more effective than FPG in predicting the presence of T2DM in the IFG subjects. IFG individuals with HbA1c≥6.0% or FPG≥5.9 mmol/L should be advised to undergo a 75 g OGTT to detect T2DM earlier than otherwise.


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