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  • pancreatectomy  (2)
  • Type 1 (insulin-dependent) diabetes mellitus  (1)
  • 1
    Digitale Medien
    Digitale Medien
    Insulin-mediated and glucose-mediated glucose uptake following hemipancreatectomy in healthy human donors (1994)
    Springer
    Diabetologia 37 (1994), S. 1036-1043 
    Details
    ISSN: 1432-0428
    Schlagwort(e): Key words Insulin action ; pancreatectomy ; glucose uptake ; pancreas transplantation ; minimal model.
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary Healthy humans undergoing hemipancreatectomy for the purpose of donation to a family member with IDDM have previously been demonstrated to maintain serum glucose values equal to matched control subjects during short-term glucose infusion despite significant decrements in glucose- and arginine-induced insulin secretion. In order to determine whether humans compensate for hemipancreatectomy by increasing insulin- or glucose-mediated glucose uptake, we measured glucose turnover and insulin sensitivity by three protocols. Insulin-mediated glucose uptake was measured during sequential infusions of insulin at rates of 0.25, 1.0, and 10.0 mU · kg−1· min−1 in 12 donor subjects and 12 matched control subjects maintained at euglycaemia. Both groups displayed similar increases in rates of glucose disappearance and similar decreases in rates of hepatic glucose production. Glucose-mediated uptake was calculated as the difference between the rates of glucose disappearance measured during a hyperglycaemic clamp and a euglycaemic clamp performed at identical rates of insulin infusion and was also found to be similar in both donor subjects and control subjects. Both groups also had indistinguishable measures of insulin sensitivity and glucose effectiveness as determined by the minimal model technique. Therefore, donor subjects appear to compensate for diminished insulin secretion following hemipancreatectomy by an unidentified mechanism since neither insulin- nor glucose-mediated glucose uptake are increased. [Diabetologia (1994) 37: 1036–1043]
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00400467
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  • 2
    Digitale Medien
    Digitale Medien
    Insulin-mediated and glucose-mediated glucose uptake following hemipancreatectomy in healthy human donors (1994)
    Springer
    Diabetologia 37 (1994), S. 1036-1043 
    Details
    ISSN: 1432-0428
    Schlagwort(e): Insulin action ; pancreatectomy ; glucose uptake ; pancreas transplantation ; minimal model
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary Healthy humans undergoing hemipancreatectomy for the purpose of donation to a family member with IDDM have previously been demonstrated to maintain serum glucose values equal to matched control subjects during short-term glucose infusion despite significant decrements in glucose- and arginine-induced insulin secretion. In order to determine whether humans compensate for hemipancreatectomy by increasing insulin- or glucose-mediated glucose uptake, we measured glucose turnover and insulin sensitivity by three protocols. Insulin-mediated glucose uptake was measured during sequential infusions of insulin at rates of 0.25, 1.0, and 10.0 mU·kg−1·min−1 in 12 donor subjects and 12 matched control subjects maintained at euglycaemia. Both groups displayed similar increases in rates of glucose disappearance and similar decreases in rates of hepatic glucose production. Glucose-mediated uptake was calculated as the difference between the rates of glucose disappearance measured during a hyperglycaemic clamp and a euglycaemic clamp performed at identical rates of insulin infusion and was also found to be similar in both donor subjects and control subjects. Both groups also had indistinguishable measures of insulin sensitivity and glucose effectiveness as determined by the minimal model technique. Therefore, donor subjects appear to compensate for diminished insulin secretion following hemipancreatectomy by an unidentified mechanism since neither insulin- nor glucose-mediated glucose uptake are increased.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00400467
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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    Artikel (Nationallizenzen)
    Volltext
  • 3
    Digitale Medien
    Digitale Medien
    Fetal haemoglobin levels in adult Type 1 (insulin-dependent) diabetic patients (1993)
    Springer
    Diabetologia 36 (1993), S. 129-132 
    Details
    ISSN: 1432-0428
    Schlagwort(e): Type 1 (insulin-dependent) diabetes mellitus ; glycaemic control ; HbA1c ; fetal haemoglobin
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Summary Glycated haemoglobin levels (HbA1 and HbA1c) are established parameters of long-term glycaemic control in diabetic patients. Depending on the method used, fetal haemoglobin interferes with the assays for glycated haemoglobin. If present in high amounts, fetal haemoglobin may lead to overestimation of glycated haemoglobin levels, and therefore, of average blood glucose concentration in diabetic patients. Glycated (HbA1c) and fetal haemoglobin levels were measured by high pressure liquid chromatography in 60 (30 female) adult Type 1 (insulin-dependent) diabetic patients of Swiss descent, and were compared with levels obtained from 60 normal, non-diabetic control subjects matched for age and sex. Fetal haemoglobin levels were significantly higher in the diabetic patients (0.6±0.1%, mean±SEM; range: 0–3.6%) than in the control subjects (0.4±0.1%, p〈0.001). Elevated fetal haemoglobin levels (≥0.6%) were found in 23 of 60 diabetic patients (38%) compared to 9 of 60 control subjects (15%; χ 2=8.35, p〈0.01). In addition, fetal haemoglobin levels in diabetic patients are weakly correlated with glycated haemoglobin (HbA1c) (r=0.38, p〈0.01). Fetal haemoglobin results were confirmed with the alkali denaturation procedure, and by immunocytochemistry using a polyclonal rabbit anti-fetal haemoglobin antibody. A significant proportion of adult patients with Type 1 diabetes has elevated fetal haemoglobin levels. In certain patients this may lead to a substantial over-estimation of glycated haemoglobin levels, and consequently of estimated, average blood glucose levels. The reason for this increased prevalence of elevated fetal haemoglobin remains unclear, but it may be associated with poor glycaemic control.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00400693
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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