Endocrine pancreatic function in insulin-dependent diabetic pregnant women

1986 ◽  
Vol 113 (3_Suppl) ◽  
pp. S31-S36 ◽  
Author(s):  
R. Fiore ◽  
A. Maldonato ◽  
D. Zicari ◽  
G. Pimpinella ◽  
P. Gargiulo ◽  
...  
Keyword(s):  
Pregnant Women ◽  
Plasma Glucose ◽  
Cell Function ◽  
Normal Pregnancy ◽  
Diabetic Pregnancy ◽  
Molar Ratio ◽  
Diabetic Patients ◽  
Maternal Weight ◽  
Arginine Infusion ◽  
Insulin Dependent Diabetic

Abstract. In order to better understand the role of A-and B-cell function in diabetic pregnancy, we studied four groups of pregnant women at week 34–36 of gestation. Seventeen were healthy controls (C), 24 had gestational diabetes (GD), 16 had type 2 diabetes (NIDD) and 37 had type 1 diabetes (IDD). At times —20, 0, 20, 30, 45, 60, 90 and 120 min from the beginning of a 30 min infusion of 30 g of arginine intravenously, plasma glucose, glucagon (IRG) and C-peptide (CPR) were measured. Plasma glucose was higher in diabetic than in control subjects. IRG values were also higher in the GD and the NIDD women. CPR values were similar to, or slightly higher than control values in the GD and the NIDD and were much lower in the IDD women. All three variables increased during the arginine infusion in all groups, with the exception that CPR remained unchanged in the IDD. The CPR/IRG molar ratio was similar in control, GD and NIDD women; in the IDD, it was much smaller than in the other groups and was not affected by arginine. In all the diabetic patients, IRG was negatively correlated with the maternal weight gain and in the IDD IRG was positively correlated with the increase in the insulin need and with the CPR levels. In conclusion diabetes appeared to enhance the A-cell function also in pregnancy, possibly impairing the 'facilitated anabolism' and stressing the 'accelerated starvation' which are typical of normal pregnancy. Glucagon was confirmed as one possible determinant of the insulin resistance seen in diabetic pregnancy.

Determination Of Malondialdehyde In Normal And Diabetic Pregnancies

1981 ◽  
Author(s):  
I Rákóczi ◽  
Gy Geró ◽  
J Demeter ◽  
I Gáti
Keyword(s):  
Pregnant Women ◽  
Mean Value ◽  
Diabetic Pregnancy ◽  
Diabetic Patients ◽  
Third Trimester ◽  
The Mean ◽  
Platelet Hyperaggregation ◽  
Induced Aggregation ◽  
Increased Activity

It is known that platelet hyperaggregation observed in diabetic patients is, at least in part, due to an increased activity of the endoperoxide-thromboxane forming metabolic pathway. It was interesting to determine the platelet malondialdehyde /MDA/ production in normal and diabetic pregnancies. Following individuals have been studied: /I/ twenty-five healthy non-pregnant volunteers; /II/ thirty women in third trimester of non-complicated pregnancies; /III/ twenty two diabetic pregnant women without retinopathy; /IV/ fifteen diabetic pregnant women with retinopathy. Platelet MDA production following N-ethyl-maleimide induced aggregation was measured according to Stuart et al. The mean value of MDA production was similar in volunteers and normal pregnant women /SDM, 7.07±0.73 nmoles MDA per 109 platelets; 7.22±0.81/. The mean MDA production in diabetic women without retinopathy was slightly but nonsignificantly higher than that in normal pregnant women /7.57±1.02; p>0.05/. The corresponding value in diabetic women with retinopathy was significantly higher than the values in the other three groups /8.47±0.82; p<0.01/. These data suggest that the activation of prostaglandin synthetic pathway /measured by MDA/ is significantly increased in diabetic pregnancy complicated by retinopathy. The increase of platelet prostaglandin synthesis in diabetic pregnancy might play an important role in initiating and/or promoting the small-vessel complications of placenta.

Beta Cell Function in Insulin-Treated Non-Insulin-Dependent Diabetic Patients

Pancreas ◽  
1986 ◽  
Vol 1 (5) ◽  
pp. 411-414
Author(s):  
Ambady Ramachandran ◽  
Chamukuttan Snehalatha ◽  
Viswanathan Mohan ◽  
Appa Rao ◽  
Moopil Viswanathan
Keyword(s):  
Beta Cell ◽  
Beta Cell Function ◽  
Cell Function ◽  
Diabetic Patients ◽  
Insulin Dependent ◽  
Insulin Dependent Diabetic

scholarly journals The Effect of Diet Control on the Leptin Levels in Diabetic Pregnant Women

2020 ◽  
Vol 14 (1) ◽  
Author(s):  
Muna KA ◽  
Mokhtar A ◽  
Saad MA ◽  
Ahmed AA ◽  
Akbar JB
Keyword(s):  
Body Mass Index ◽  
Pregnant Women ◽  
Body Mass ◽  
Normal Pregnancy ◽  
The Body ◽  
Medical Complication ◽  
Diabetic Patients ◽  
Standard Normal ◽  
Diet Control ◽  
In Pregnancy

Introduction: Leptin is an adipokine that has strong correlation with the body mass index (BMI). Gestational diabetes mellitus (GDM) is a common medical complication associated with pregnancy. Leptin may lose its correlation with the body mass index (BMI) during diabetes due to hormonal rearrangement. Diet control is the first line management in GDM. Leptin reported to increase in pregnancy and further increases in diabetic patients during GDM screening. There is paucity in the reports concerning Leptin levels in GDM patients on diet control. The present study was aimed to evaluate the changes in maternal leptin in pregnancy complicated by GDM on diet control compared to the normal pregnancy in the 3rd trimesters by comparing the means and to find the correlation of Leptin with the body mass index in both groups. Methods: The study included 2 groups: normal pregnancy (n = 40) and pregnancy with GDM under diet control (n = 60) both groups are at 38-40 weeks of gestation. Leptin concentration in serum was measured in both groups and statistically tested using student t test. The BMI were measured and correlated with the Leptin level in test groups. Results: the results indicated that Leptin will nearly triple in the third trimester (38±30 ng/ml) of pregnancy compared to the standard normal non-pregnant. Leptin level was significantly lower in diabetic women on diet control (28±16 ng/ ml) when compared with the non-diabetics (38±30 ng/ml). The hormone has no correlation with the age of the patients but have a positive correlation with the body mass index before and during pregnancy in both groups. Conclusion: Leptin is increasing in pregnancy as part of the physiological changes. Dieting can decrease Leptin level in diabetics’ pregnant women. Diet can restore the hormonal dysregulation of Leptin. Assessment of Leptin level might be used as an indicator for good diet control during pregnancy.

Plasma endothelin-1 and big endothelin-1 levels in women with pre-eclampsia

1993 ◽  
Vol 129 (2) ◽  
pp. 114-120 ◽  
Author(s):  
Norihito Sudo ◽  
Kyuzi Kamoi ◽  
Miyuki Ishibashi ◽  
Tohru Yamaji
Keyword(s):  
Pregnant Women ◽  
Vascular Endothelial Cells ◽  
Plasma Concentrations ◽  
Regulatory System ◽  
Normal Pregnancy ◽  
Molar Ratio ◽  
Chronic Hypertension ◽  
Third Trimester ◽  
Endothelin 1 ◽  
The Third

To examine a possible role for endothelin-1 (ET-1) and conversion of big ET-1 to ET-1 in the pathophysiology of pre-eclampsia, we measured plasma levels of ET-1 and big ET-1 in 16 women with pre-eclampsia in the third trimester and compared them with those in 11 age-matched normotensive pregnant women and in 10 age-matched pregnant women with chronic hypertension in the third trimester. The plasma concentrations of ET-1 and big ET-1 in the normotensive pregnant women were significantly lower than those in 16 non-pregnant women with a higher molar ratio of big ET-1 to ET-1 in the former group. The plasma concentrations of ET-1 and big ET-1 in the women with pre-eclampsia, on the other hand, were significantly higher than those in the normotensive pregnant women and the molar ratio of big ET-1 to ET-1 in the former group was less than that in the latter group. In sharp contrast, plasma ET-1 and big ET-1 levels in the pregnant women with chronic hypertension were not significantly different from those in the normotensive pregnant women. When examined after delivery, elevated plasma ET-1 and big ET-1 in the women with pre-eclampsia declined, with restoration of normal blood pressure, to the levels in the normotensive women after parturition. There were no significant differences of the levels of ET-1 and big ET-1 in umbilical venous plasma and simultaneously drawn maternal plasma at cesarean section between normotensive pregnant women and women with pre-eclampsia, respectively. These results suggest that normal pregnancy is associated with decreased plasma concentrations of ET-1 with reduced conversion of big ET-1 to ET-1 in maternal vascular endothelial cells, and the derangement of this regulatory system plays an important role in the pathophysiology of pre-eclampsia.

Gastro-entero-pancreatic hormones in amniotic fluid from normal and diabetic pregnant women

1986 ◽  
Vol 113 (3_Suppl) ◽  
pp. S37-S43
Author(s):  
F. Fallucca ◽  
P. Gargiulo ◽  
F. Troili ◽  
D. Zicari ◽  
G. Pimpinella ◽  
...  
Keyword(s):  
Amniotic Fluid ◽  
Pregnant Women ◽  
Cell Function ◽  
Neonatal Morbidity ◽  
Gastric Inhibitory Polypeptide ◽  
Molar Ratio ◽  
Arginine Test ◽  
C Peptide ◽  
Low Concentrations ◽  
The Status

Abstract. Clinical applications of analyses of hormones in amniotic fluid (AF) have recently been increased. In diabetic pregnancy, determinations of insulin and C-peptide in AF have been suggested as good indicators of the status of the foetus. We have investigated the pancreatic alpha and beta cell function by measuring insulin (IRI), C-peptide (CPR), glucagon (IRG), somatostatin (SLI), and gastric inhibitory polypeptide (GIP) in amniotic fluid collected during basal conditions or 2 h after an arginine test in 92 diabetic and 32 nondiabetic pregnant women. During basal conditions, in diabetic pregnant women, IRI, CPR and the insulin: glucagon molar ratio (I/G) were all significantly higher while amniotic fluid-IRG was significantly lower than in the controls. After arginine stimulation, IRI increased in AF of the diabetic pregnant women but not in AF of the controls while no differences were observed in AF-GIP and AF-SLI concentrations. Higher IRI and CPR, as well as lower IRG values were significantly related to poor maternal metabolic control. The occurrence of neonatal morbidity including macrosomia was significantly associated with increased AF, IRI and CPR concentrations after an arginine challenge and these factors were the most sensitive predictors of neonatal morbidity in infants of diabetic mothers. Increased AF glucose concentrations and I/G ratios were related to neonatal hypoglycaemia; jaundice and respiratory distress syndrome were associated to low concentrations of SF-IRG.

scholarly journals The serum insulin and plasma glucose responses to milk and fruit products in Type 2 (non-insulin-dependent) diabetic patients

Diabetologia ◽  
1986 ◽  
Vol 29 (11) ◽  
pp. 784-791 ◽  
Author(s):  
M. C. Gannon ◽  
F. Q. Nuttall ◽  
P. A. Krezowski ◽  
C. J. Billington ◽  
S. Parker
Keyword(s):  
Plasma Glucose ◽  
Serum Insulin ◽  
Diabetic Patients ◽  
Insulin Dependent ◽  
Insulin Dependent Diabetic

Thiazolidinediones improve β-cell function in type 2 diabetic patients

2007 ◽  
Vol 292 (3) ◽  
pp. E871-E883 ◽  
Author(s):  
Amalia Gastaldelli ◽  
Ele Ferrannini ◽  
Yoshinori Miyazaki ◽  
Masafumi Matsuda ◽  
Andrea Mari ◽  
...  
Keyword(s):  
Insulin Secretion ◽  
Glycemic Control ◽  
Plasma Glucose ◽  
Cell Function ◽  
Glucose Disposal ◽  
Diabetic Patients ◽  
Β Cell ◽  
Β Cell Function ◽  
To Receive

Thiazolidinediones (TZDs) improve glycemic control and insulin sensitivity in patients with type 2 diabetes mellitus (T2DM). There is growing evidence from in vivo and in vitro studies that TZDs improve pancreatic β-cell function. The aim of this study was to determine whether TZD-induced improvement in glycemic control is associated with improved β-cell function. We studied 11 normal glucose-tolerant and 53 T2DM subjects [age 53 ± 2 yr; BMI 29.4 ± 0.8 kg/m2; fasting plasma glucose (FPG) 10.3 ± 0.4 mM; Hb A1c 8.2 ± 0.3%]. Diabetic patients were randomized to receive placebo or TZD for 4 mo. Subjects received 1) 2-h OGTT with determination of plasma glucose, insulin, and C-peptide concentrations and 2) two-step euglycemic insulin (40 and 160 mUm−2min−1) clamp with [3-3H]glucose. T2DM patients were then randomized to receive 4 mo of treatment with pioglitazone (45 mg/day), rosiglitazone (8 mg/day), or placebo. Pioglitazone and rosiglitazone similarly improved FPG, mean plasma glucose during OGTT, Hb A1c, and insulin-mediated total body glucose disposal (Rd) and decreased mean plasma FFA during OGTT (all P < 0.01, ANOVA). The insulin secretion/insulin resistance (disposition) index [ΔISR(AUC)/Δglucose(AUC) ÷ IR] was significantly improved in all TZD-treated groups: +1.8 ± 0.7 (PIO + drug-naïve diabetics), +0.7 ± 0.3 (PIO + sulfonylurea-treated diabetics), and 0.7 ± 0.2 (ROSI + sulfonylurea-withdrawn diabetics) vs. −0.2 ± 0.3 in the two placebo groups ( P < 0.01, all TZDs vs. placebo, ANOVA). Improved insulin secretion correlated positively with increased body weight, fat mass, and Rd and inversely with decreased plasma glucose and FFA during the OGTT. In T2DM patients, TZD treatment leads to improved β-cell function, which correlates strongly with improved glycemic control.

scholarly journals Changes in β-Cell Function in Offspring of Type-2 Diabetic Patients, as per Fasting and Two-Hour Plasma Glucose Levels

Cureus ◽  
2021 ◽  
Author(s):  
Edavan Pulikkanath Praveen ◽  
Sunil Chouhan ◽  
Jayaprakash Sahoo ◽  
Rajesh Khadgawat ◽  
Madan Lal Khurana ◽  
...  
Keyword(s):  
Plasma Glucose ◽  
Cell Function ◽  
Diabetic Patients ◽  
Β Cell ◽  
Type 2 Diabetic Patients ◽  
Glucose Levels ◽  
Β Cell Function ◽  
Type 2 Diabetic
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