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  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 116 (1994), S. 2235-2242 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 95 (1973), S. 7923-7923 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Diabetologia 28 (1985), S. 794-795 
    ISSN: 1432-0428
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Diabetologia 28 (1985), S. 936-936 
    ISSN: 1432-0428
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-0428
    Keywords: Juvenile type diabetes ; muscular exercise ; blood glucose ; ketosis ; free fatty acids ; amino acids ; insulin ; glucagon ; growth hormone ; cortisol
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Metabolic and hormonal effects of muscular exercise were studied in juvenile-type diabetics in relation to the prevailing degree of metabolic control and compared with those in healthy control subjects. Two groups of diabetic patients, one in moderate metabolic control and one in ketosis due to insulin withdrawal, were subjected to a 3 hour bicycle ergometer test of comparable, mild work intensity. In both groups of diabetics the exercise-induced rise in blood lactate was similar, but was significantly higher than in control subjects. Blood alanine levels showed a transient, significant rise in both diabetic groups, but not in controls. Blood concentrations of branch-chained amino acids remained unchanged. In the moderately controlled diabetics, exercise induced a marked fall of blood glucose and increases in blood levels of free fatty acids (FFA), ketone bodies and glucagon, which were comparable to the exercise effects in normal controls. In ketotic diabetics, however, exercise led to an additional rise in blood glucose concentration and to increases in ketone body, glucagon and cortisol levels. Significant correlations were found between the exercise effect on blood glucose and initial blood levels of glucose, FFA, ketone bodies and branch chained amino acids: pre-exercise values of above 325 mg/dl glucose, 1173 μmol/l FFA, 2.13 mmol/l ketone bodies and 0.74 mmol/l branch chained amino acids led to increased blood glucose levels on exercise, whereas below these limits glucose fell during the exercise test. These findings seem to be, at least in part, explained by the hypothesis of a permissive effect of insulin during stimulation of muscle glucose uptake by exercise. The increased circulating levels of glucagon and cortisol during exercise in ketotic diabetics might represent additional hyperglycaemic and, probably more important, lipolytic and ketogenic stimuli. The results suggest that in moderately controlled, non-ketotic diabetics blood glucose falls during exercise; in ketotic, relatively insulin deficient patients, muscular activity has adverse metabolic and hormonal effects: a further increase in blood glucose, plasma glucagon and cortisol and a rapid aggravation of ketosis.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1432-0428
    Keywords: Type 1 diabetes ; sucrose ; diet ; metabolic control
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The effects of dietary intake of sucrose versus the use of sodium cyclamate were studied in 10 Type 1 (insulin-dependent) diabetic patients on continuous subcutaneous insulin infusion therapy. After a 4-week run-in period, the patients were randomly assigned to a cross-over protocol with two 4-week periods during which they used sucrose or sodium-cyclamate as sweetener. During the experimental periods, 24±13 g/day sucrose and 348±270 mg/day of sodium cyclamate were consumed, respectively. Metabolic control was monitored by the patients performing blood glucose self-monitoring several times daily. Bi-weekly, all patients were followed-up in our outpatient clinic. Mean daily blood glucose concentrations as well as the average daily insulin dose did not differ between the three experimental periods. HbAIc-levels, serum lipids and body weight remained unchanged and within the normal ranges throughout the study. Thus, moderate dietary intake of sucrose did not affect metabolic control in these normal weight, near-normoglycaemic, normolipidaemic, pump-treated Type 1 diabetic patients during a 1-month period. Whether similar conclusions apply to less well controlled diabetic patients remains to be seen.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Diabetologia 28 (1985), S. 473-478 
    ISSN: 1432-0428
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1432-0428
    Keywords: Physical training ; glucose tolerance ; skeletal muscle glucose metabolism ; insulin sensitivity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The effect of physical training on glucose tolerance in vivo and skeletal muscle glucose metabolism in vitro was investigated in normal rats. Treadmill running for 10 days up to 240 min/day led to a decrease of basal and glucose-stimulated plasma insulin levels without major alterations of the IV glucose tolerance (1 g/kg body weight). Swim training of two weeks' duration, i. e. exercise up to 2×75 min/ day, which did not induce significant changes in body composition, skeletal muscle glycogen levels or citrate synthase activity, resulted in a significant improvement of IV glucose tolerance and substantial reductions of basal and glucose-stimulated plasma insulin levels. Associated with this apparent improvement of insulin sensitivity in vivo, significant increases of the insulin-stimulated glucose uptake (+ 55%) and lactate oxidation (+ 78%) in vitro were found on perfusion of the isolated hindquarter of swim-trained animals. It is suggested that mild physical training can improve glucose tolerance and insulin sensitivity in normal rats, at least in part, due to an increase of insulin sensitivity of skeletal muscle glucose metabolism.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1432-0428
    Keywords: Tritiated insulin ; subcutaneous insulin injections ; chemical analysis of injection site ; absorption kinetics ; local insulin degradation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The absorption of subcutaneously injected insulin was examined by injecting semisynthetic [3H] insulin in anaesthetized pigs and subsequently analysing the tissue excised from the injection site. Contrary to previously accepted views, a significant proportion of insulin was degraded at the injection site. The disappearance of intact [3H] insulin from the injection site followed a monoexponential function with a half-time of 59 min.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1432-0428
    Keywords: Diabetes education ; Type 1 diabetes ; severe hypoglycaemia ; diabetes care
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In two hospitals an identical diabetes teaching and treatment programme (in-patient, Monday to Friday, group teaching) was set up. Seventy-eight consecutive, conventionally treated Type 1 diabetic patients (duration of diabetes 10±6 years), referred during a certain period, were reinvestigated after 1 year, and again (for assessment of metabolic control only) 22 months after the teaching and treatment programme. Initially, mean glycosylated haemoglobin was 2.6%, after one year 1.0%, and after 22 months 1.5% above the upper limit of the normal range (p〈0.001). Hospital admissions were reduced from a mean of 10 to a median of 1 day per patient per year (p〈0.001). The long-term quality of diabetes care achieved by the diabetes teaching and treatment programme was unrelated to intelligence quotient, diabetes duration, or diabetes-related knowledge. Patients with normal levels of glycosylated haemoglobin on follow-up (33% of all patients) had particularly good compliance rates, and significantly lower initial values of glycosylated haemoglobin than patients with glycosylated haemoglobin levels ⩾10%. The data indicate that the diabetes teaching and treatment programme resulted in a substantial long-term improvement of metabolic control and a striking reduction of hospital admissions. The study substantiates the feasibility of applying this teaching and treatment programme on a large scale to other hospitals, so as to improve the quality of diabetes care and decrease health care costs.
    Type of Medium: Electronic Resource
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