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  • 1
    Electronic Resource
    Electronic Resource
    The prevalence of diabetes mellitus and impaired glucose tolerance in melanesians and part-polynesians in Rural New Caledonia and ouvea (Loyalty Islands) (1982)
    Springer
    Diabetologia 23 (1982), S. 393-398 
    Details
    ISSN: 1432-0428
    Keywords: Impaired glucose tolerance ; diabetes mellitus ; prevalence ; Melanesian ; Polynesian ; glucose tolerance ; genetics ; environment ; rural ; urban
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The study of different ethnic groups living in the same physical environment provides the opportunity to examine interaction of genetic and environmental factors in the aetiology of diabetes mellitus. In rural New Caledonia, the prevalence of diabetes was higher in part-Polynesians than in Melanesians: males — 6.6 versus 0.5%; females — 6.3 versus 3.5% respectively. The prevalence of abnormal glucose tolerance (impaired glucose tolerance and diabetes) was 11.5 and 15.7% in part-Polynesian males and females, respectively, and 4.7 and 9.2% in Melanesian males and females. Mean age and degree of obesity in these ethnic groups were sufficiently similar to suggest that these factors played no significant role in the difference in diabetes prevalence. Furthermore, adjustment of relative risk of impaired glucose tolerance and diabetes for age and obesity indicated that the modest differences between groups were not responsible for the observed variation in diabetes prevalence. The differences in prevalence of impaired glucose tolerance and diabetes between Melanesians and part-Polynesians may be genetically determined, although the role of certain environmental factors other than obesity, e.g. differences in physical activity or qualitative aspects of diet, cannot be excluded.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00260949
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Early and late insulin response as predictors of NIDDM in Pima Indians with impaired glucose tolerance (1995)
    Springer
    Diabetologia 38 (1995), S. 187-192 
    Details
    ISSN: 1432-0428
    Keywords: Impaired glucose tolerance ; insulin response ; cholesterol
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Risk factors predicting deterioration to diabetes mellitus were examined in 181 subjects with impaired glucose tolerance. Fifty-seven subjects had impaired glucose tolerance on one occasion followed by normal glucose tolerance at a repeat oral glucose tolerance test, and 124 subjects had impaired glucose tolerance on two successive oral glucose tolerance tests. Subjects were followed for a median period of 5.0 years (range 1.0–17.2). The age- and sex-adjusted cumulative incidence of diabetes at 10 years of follow-up was higher in subjects who had impaired glucose tolerance on both tests (70%) than in those whose glucose tolerance was normal at the repeat test (53%), [rate ratio (RR)=1.6, 95% confidence intervals (CI)=1.0–2.5]. Proportional hazards analyses were used to identify baseline risk factors (measured at the repeat oral glucose tolerance test) for subsequent diabetes, and incidence rate ratios were calculated for the 90th percentile compared with the 10th percentile of each continuous variable for the whole group. In all subjects, in separate models, higher body mass index [RR=2.0, 95% CI=2.2–9.9], high fasting serum insulin concentrations [RR=2.4, 95% CI=1.4–4.2], and low early insulin response [RR=0.5, 95% CI=0.3–0.8] 30 min after a glucose load were significant predictors for deterioration to diabetes. In a multivariate analysis which controlled for age and sex, 120-min post-load glucose, fasting insulin and late insulin response predicted diabetes. In subgroup analyses the predictors of diabetes were generally similar in subjects who had impaired glucose tolerance at only one test and those who had impaired glucose tolerance on both tests. These findings suggest that in those subjects with impaired glucose tolerance whose glucose tolerance has returned to normal, the risk of subsequent diabetes is high. Insulin resistance, impaired early insulin response, or both, are predictive of subsequent development of diabetes in Pima Indians with impaired glucose tolerance.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00400093
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Diabetic nephropathy: a risk factor for diabetes mellitus in offspring (1995)
    Springer
    Diabetologia 38 (1995), S. 221-226 
    Details
    ISSN: 1432-0428
    Keywords: Familial aggregation ; diabetes mellitus ; nephropathy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Both non-insulin-dependent diabetes mellitus and diabetic nephropathy show familial aggregation. If diabetes and renal disease have independent determinants (genetic or otherwise), offspring of parents with diabetic renal disease should have a similar risk of diabetes to those offspring of parents with diabetes alone. To test this hypothesis, the prevalence of diabetes was examined in a population-based pedigree study in Pima Indian offspring of three mutually exclusive parental types: 1) diabetic with renal disease, 2) diabetic, but without renal disease and 3) non-diabetic. Among offspring of one diabetic parent and one non-diabetic parent (n=320) the prevalence of diabetes at ages 15–24 years and 25–34 years was 0% and 11%, respectively if the diabetic parent did not have renal disease compared with 6% and 28% respectively if the diabetic parent did have renal disease. Corresponding rates for offspring of two diabetic parents (n=121) were 10% and 17%, respectively if neither parent had renal disease compared with 30% and 50%, respectively if one parent did have renal disease. The presence of renal disease in a parent with diabetes relative to diabetes alone was associated with 2.5 times the odds of diabetes (95% confidence interval 1.4–4.3) in the offspring controlled for age, age at onset of parental diabetes and diabetes in the other parent using logistic regression. These findings provide support for parental diabetic renal disease, independent of age at onset of parental diabetes, conferring an increased risk for diabetes in the offspring. The results are compatible with the hypothesis that the susceptibility to renal disease in the parents and to diabetes in the offspring are due to shared familial environmental factors or to the same gene or set of genes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00400098
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Diagnosing diabetes mellitus – do we need new criteria? (1997)
    Springer
    Diabetologia 40 (1997), S. 247-255 
    Details
    ISSN: 1432-0428
    Keywords: Keywords Diabetes mellitus ; diagnosis ; oral glucose tolerance test ; fasting plasma glucose ; 2-h plasma glucose ; haemoglobin A1c ; retinopathy ; nephropathy ; complications.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The current classification and diagnostic criteria for diabetes mellitus were introduced by the United States National Data Group in 1979 and endorsed by the World Health Organization in 1980, with modifications in 1985 and 1994. The criteria, chosen to reflect the risk of complications, were the synthesis of considerable thought and expertise and represented a consensus which, it was hoped, would prove helpful to all those involved with diabetes – practising clinician, research scientist and epidemiologist alike. The inconvenience, variability and nonphysiological nature of the oral glucose tolerance test (OGTT) are well-recognised. In spite of these limitations the 2-h post-load plasma glucose has remained the standard against which all other tests have been evaluated. This article reviews the original justification for the OGTT, and in the light of more recent epidemiological research seeks to place the current diagnostic criteria for diabetes into a pathophysiological, diagnostic and prognostic perspective. [Diabetologia (1997) 40: 247–255]
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001250050671
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Fasting and two-hour post-load glucose levels for the diagnosis of diabetes (1979)
    Springer
    Diabetologia 16 (1979), S. 373-379 
    Details
    ISSN: 1432-0428
    Keywords: Two-hour plasma glucose ; fasting plasma glucose ; bimodality ; oral glucose tolerance tests ; Pima Indians ; diagnosis ; diabetes ; sensitivity ; specificity ; misclassification ; retinopahy ; nephropathy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The frequency distributions of both the fasting and two-hour post-load plasma glucose levels were bimodal in the Pima Indian population aged 25 years and over. The hyperglycaemic component of this distribution represents those with diabetes mellitus, as some 30 percent of this group had evidence of the specific vascular complications of the disease, whereas these abnormalities were virtually absent in those with lower glucose levels. The bimodal characteristics of the frequency distributions were utilized to define optimal criteria to separate those with and without diabetes. The sensitivity and specificity of these criteria for fasting and two-hour glucose levels were compared and were found to be similar. The fasting glucose determination, however, was more reproducible and stable, as well as being easier to obtain, indicating that it is the better measurement for diagnostic purposes. The optimal level for diagnosis of 7.5 mmol/l (136 mg/dl) for the fasting glucose and the equivalent two-hour value of 14 mmol/l (250 mg/dl), were higher than many previously recommended diagnostic levels. Nevertheless, there was no evidence that subjects with lower levels were at appreciable risk of developing the specific complications of diabetes. Subjects with impaired glucose tolerance (IGT), but without fasting hyperglycaemia, shouldnot be diagnosed as having diabetes mellitus.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01223157
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    Paper (German National Licenses)
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