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  • 1
    Electronic Resource
    Electronic Resource
    Scintigraphic evidence for cardiac sympathetic dysinnervation in long-term IDDM patients with and without ECG-based autonomic neuropathy (1995)
    Springer
    Diabetologia 38 (1995), S. 1345-1352 
    Details
    ISSN: 1432-0428
    Keywords: Insulin-dependent diabetes mellitus ; metaiodobenzylguanidine ; autonomic neuropathy ; sympathetic dysinnervation ; QT interval
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary To analyse the presence and extent of global and regional distributions of cardiac sympathetic dysinnervation in long-term insulin-dependent diabetes mellitus (IDDM) without myocardial perfusion abnormalities (99mTc-methoxy isobutyl isonitrile study), 123I-metaiodobenzylguanidine (123I-MIBG) scintigraphy was performed in two clinically-comparable groups (20 diabetic patients with and 22 diabetic patients without ECG-based cardiac autonomic neuropathy). For comparison nine control subjects without heart disease were investigated. Only six diabetic patients (27%) without and one diabetic patient (5%) with ECG-based autonomic neuropathy were found to have a uniform homogeneous uptake of 123I-MIBG, in contrast to a uniform homogeneous uptake in all control subjects. The uptake of 123I-MIBG in the posterior myocardium of diabetic patients was smaller than in the anterior, lateral and septal myocardium (p〈0.001, p〈0.001, p=0.001). In addition, diabetic patients with cardiac autonomic neuropathy (≥ two of five age-related cardiac reflex tests abnormal) demonstrated a more reduced uptake in the global, lateral and posterior myocardium than diabetic patients without (p〈0.01, p〈0.01, p〈0.001). A correlation between global or regional myocardial 123I-MIBG uptake, however, and duration of diabetes, HbA1c, body mass index or QT interval length was not observed. Our study demonstrates that cardiac sympathetic dysinnervation is common in long-term IDDM even in patients without ECG-based cardiac autonomic neuropathy and that the posterior myocardium is predominantly affected. We conclude that 123I-MIBG scintigraphy is a promising approach to further elucidate the pattern and natural history of myocardial dysinnervation in IDDM.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00401768
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  • 2
    Electronic Resource
    Electronic Resource
    Scintigraphic evidence for cardiac sympathetic dysinnervation in long-term IDDM patients with and without ECG-based autonomic neuropathy (1995)
    Springer
    Diabetologia 38 (1995), S. 1345-1352 
    Details
    ISSN: 1432-0428
    Keywords: Key words Insulin-dependent diabetes mellitus ; metaiodobenzylguanidine ; autonomic neuropathy ; sympathetic dysinnervation ; QT interval.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary To analyse the presence and extent of global and regional distributions of cardiac sympathetic dysinnervation in long-term insulin-dependent diabetes mellitus (IDDM) without myocardial perfusion abnormalities (99 mTc-methoxy isobutyl isonitrile study), 123I-metaiodobenzylguanidine (123I-MIBG) scintigraphy was performed in two clinically-comparable groups (20 diabetic patients with and 22 diabetic patients without ECG-based cardiac autonomic neuropathy). For comparison nine control subjects without heart disease were investigated. Only six diabetic patients (27 %) without and one diabetic patient (5 %) with ECG-based autonomic neuropathy were found to have a uniform homogeneous uptake of 123I-MIBG, in contrast to a uniform homogeneous uptake in all control subjects. The uptake of 123I-MIBG in the posterior myocardium of diabetic patients was smaller than in the anterior, lateral and septal myocardium (p 〈 0.001, p 〈 0.001, p = 0.001). In addition, diabetic patients with cardiac autonomic neuropathy ( ≥ two of five age-related cardiac reflex tests abnormal) demonstrated a more reduced uptake in the global, lateral and posterior myocardium than diabetic patients without (p 〈 0.01, p 〈 0.01, p 〈 0.001). A correlation between global or regional myocardial 123I-MIBG uptake, however, and duration of diabetes, HbA1 c, body mass index or QT interval length was not observed. Our study demonstrates that cardiac sympathetic dysinnervation is common in long-term IDDM even in patients without ECG-based cardiac autonomic neuropathy and that the posterior myocardium is predominantly affected. We conclude that 123I-MIBG scintigraphy is a promising approach to further elucidate the pattern and natural history of myocardial dysinnervation in IDDM. [Diabetologia (1995) 38: 1345–1352]
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001250050433
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Predictors of 10-year macrovascular and overall mortality in patients with NIDDM: the Munich General Practitioner Project (1996)
    Springer
    Diabetologia 39 (1996), S. 1540-1545 
    Details
    ISSN: 1432-0428
    Keywords: Keywords Non-insulin-dependent diabetes mellitus ; mortality ; macrovascular mortality ; von Willebrand-factor ; urine albumin excretion ; HbA1c ; blood pressure ; lipids.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The 10-year follow-up of the Munich General Practitioner Project was designed as a long-term prospective study to evaluate factors predicting macrovascular and overall mortality in a random cohort of non-insulin-dependent diabetic (NIDDM) patients. Of the original 290 patients (103 males, 187 females, median age 65 years) 92.5 % could be assessed, 103 subjects had died, 58 from macrovascular causes. In an univariate analysis of baseline data, deceased patients, and especially those who died from macrovascular causes had significantly higher fasting blood glucose, HbA1c, von Willebrand-factor protein, urine albumin excretion, and serum β 2-microglobulin, were significantly older, exhibited significantly more ischaemic heart disease (abnormal ECG Minnesota codes), carotid artery and peripheral vascular disease (both determined by ultrasound-Doppler), and had significantly inferior knowledge about diabetes and its treatment. No significant differences were seen for gender, blood pressure, smoking, total cholesterol, triglycerides, HDL-cholesterol, or the use of antidiabetic, antihypertensive or coronary drugs. In a multiple logistic regression analysis, the risk factors for macrovascular death were age, HbA1c and von Willebrand-factor protein. When baseline macrovascular disease was taken into account, carotid artery disease was also a determinant. The main variables from the metabolic syndrome (blood pressure, dyslipidaemia, body mass index) did not enter a multiple logistic regression analysis. The data suggest that age and haemoglobin A1c are major determinants, and that in addition von Willebrand-factor associated endothelial damage is a risk factor for macrovascular mortality in NIDDM patients. [Diabetologia (1996) 39: 1540–1545]
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001250050612
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Influence of diabetes mellitus on the heart and macrovascular mortality (1997)
    Springer
    Diabetologia 40 (1997), S. S125 
    Details
    ISSN: 1432-0428
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001250051426
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  • 5
    Electronic Resource
    Electronic Resource
    Delay of Type I diabetes in high risk, first degree relatives by parenteral antigen administration: the Schwabing Insulin Prophylaxis Pilot Trial (1998)
    Springer
    Diabetologia 41 (1998), S. 536-541 
    Details
    ISSN: 1432-0428
    Keywords: Keywords Type I (Insulin-dependent) diabetes mellitus ; intervention ; prevention ; autoantibodies ; insulin-prophylaxis.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The Schwabing Insulin Prophylaxis Trial is a randomised, controlled pilot study designed to examine whether insulin therapy can delay or prevent the clinical onset of Type I diabetes in high risk first degree relatives of people with the disease. First degree relatives of patients with Type I diabetes, who were aged 4 years or more, had an islet cell antibody (ICA) value more than 20 Junevile Diabetes Foundation Units (JDF-U), a reduced first phase insulin response (FPI) to an i. v. glucose tolerance test less than the 5th centile, and a normal oral glucose tolerance test were eligible for the trial. Between January 1989 and October 1995, 1736 relatives of patients with Type I diabetes were screened for ICA. We identified 64 cases (3.7 %) with ICA values more than 20 JDF-U. Of ICA positive relatives, 17 (27 %) had a low FPI and were eligible for enrolment. Of these 14 agreed to participate, of whom 7 were randomised to the treatment group and 7 to the control group. In the treatment group, human insulin was administered i. v. by continuous infusion for 7 days, followed by daily s. c. injections for 6 months. Intravenous insulin infusions were repeated every 12 months. In the treatment group 3 of the 7 individuals (follow-up from time of eligibility: 2.3 to 7.1 years) and in the control group 6 of the 7 untreated individuals (1.7 to 7.1 years) developed clinical diabetes. Life table analysis showed that clinical onset of Type I diabetes was delayed in insulin-treated subjects compared with control subjects (means ± SEM diabetes-free survival: 5.0 ± 0.9 years vs 2.3 ± 0.7 years, p 〈 0.03). Insulin levels after i. v. glucose increased in the first year of intervention therapy. Titres of ICA, and antibodies to glutamic acid decarboxylase, and tyrosine phosphatase-like protein IA2 remained unchanged. These data suggest that insulin prophylaxis can delay the onset of overt diabetes in high risk relatives. This is encouraging in view of 1) the continuing American Diabetes Prevention Trial, which is currently testing the effect of parenteral insulin in a large nation-wide study and 2) the initiation of pilot trials to determine whether new antigen-specific intervention is more effective in delaying the clinical onset of Type I diabetes. [Diabetologia (1998) 41: 536–541]
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001250050943
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  • 6
    Electronic Resource
    Electronic Resource
    Autoantibodies against sympathetic ganglia and evidence of cardiac sympathetic dysinnervation in newly diagnosed and long-term IDDM patients (1996)
    Springer
    Diabetologia 39 (1996), S. 970-975 
    Details
    ISSN: 1432-0428
    Keywords: Keywords Insulin-dependent diabetes mellitus ; metaiodobenzylguanidine ; autonomic neuropathy ; nervous tissue autoantibodies ; islet cell antibodies.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary To investigate the presence of autoantibodies against sympathetic nervous tissue and their correlation with cardiac sympathetic dysinnervation in insulin-dependent diabetes mellitus (IDDM), 20 newly diagnosed (age 26 ± 6 years) and 48 long-term IDDM patients (age 40 ± 13 years, duration of diabetes 22 ± 12 years) without myocardial perfusion abnormalities (normal 99 mTC-methoxyisobutylisonitrile uptake) were assessed for myocardial 123I-metaiodobenzylguanidine (123I-MIBG) uptake and complement-fixing sympathetic ganglia (CF-SG) autoantibodies. Both groups of patients were also studied for islet cell antibodies (ICA) and ECG-based cardiac autonomic neuropathy. Eighty control subjects (age 18–49 years) were investigated for CF-SG autoantibodies. Eight newly diagnosed (40 %) and 12 long-term (25 %) IDDM patients exhibited CF-SG autoantibodies, compared to 4 control subjects (5 %; p 〈 0.01, p 〈 0.05). In long-term diabetic patients, the reduction of global but not of regional myocardial 123I-MIBG uptake correlated with CF-SG autoantibodies (r = 0.34, p = 0.02). Newly diagnosed diabetic patients did not show an association between CF-SG autoantibodies and global or regional myocardial 123I-MIBG uptake. ECG-based cardiac autonomic neuropathy ( ≥ two of five cardiac reflex tests abnormal) was present in 22 and absent in 26 long-term IDDM patients, of whom 9 (41 %) and 3 (12 %), respectively were positive for CF-SG autoantibodies (p = 0.02). Only 1 newly diagnosed IDDM patient demonstrated ECG-based cardiac autonomic neuropathy and was also positive for CF-SG autoantibodies. Although they are somewhat suggestive, results concerning autoantibodies against sympathetic nervous tissue and cardiac sympathetic dysinnervation do not strongly support the view that autoimmune mechanisms play a major role in the pathogenesis of cardiac sympathetic neuropathy in IDDM. [Diabetologia (1996) 39: 970–975]
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00403917
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Autoantibodies against sympathetic ganglia and evidence of cardiac sympathetic dysinnervation in newly diagnosed and long-term IDDM patients (1996)
    Springer
    Diabetologia 39 (1996), S. 970-975 
    Details
    ISSN: 1432-0428
    Keywords: Insulin-dependent diabetes mellitus ; metaiodobenzylguanidine ; autonomic neuropathy ; nervous tissue autoantibodies ; islet cell antibodies
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary To investigate the presence of autoantibodies against sympathetic nervous tissue and their correlation with cardiac sympathetic dysinnervation in insulin-dependent diabetes mellitus (IDDM), 20 newly diagnosed (age 26±6 years) and 48 long-term IDDM patients (age 40±13 years, duration of diabetes 22±12 years) without myocardial perfusion abnormalities (normal 99mTC-methoxyisobutylisonitrile uptake) were assessed for myocardial 123I-metaiodobenzylguanidine (123I-MIBG) uptake and complement-fixing sympathetic ganglia (CF-SG) autoantibodies. Both groups of patients were also studied for islet cell antibodies (ICA) and ECG-based cardiac autonomic neuropathy. Eighty control subjects (age 18–49 years) were investigated for CF-SG autoantibodies. Eight newly diagnosed (40%) and 12 long-term (25%) IDDM patients exhibited CF-SG autoantibodies, compared to 4 control subjects (5%; p〈0.01, p〈0.05). In long-term diabetic patients, the reduction of global but not of regional myocardial 123I-MIBG uptake correlated with CF-SG autoantibodies (r=0.34, p=0.02). Newly diagnosed diabetic patients did not show an association between CF-SG autoantibodies and global or regional myocardial 123I-MIBG uptake. ECG-based cardiac autonomic neuropathy (≥ two of five cardiac reflex tests abnormal) was present in 22 and absent in 26 long-term IDDM patients, of whom 9 (41%) and 3 (12%), respectively were positive for CF-SG autoantibodies (p=0.02). Only 1 newly diagnosed IDDM patient demonstrated ECG-based cardiac autonomic neuropathy and was also positive for CF-SG autoantibodies. Although they are somewhat suggestive, results concerning autoantibodies against sympathetic nervous tissue and cardiac sympathetic dysinnervation do not strongly support the view that autoimmune mechanisms play a major role in the pathogenesis of cardiac sympathetic neuropathy in IDDM.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00403917
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Typ-2-Diabetes (1998)
    Springer
    Der Internist 39 (1998), S. 381-397 
    Details
    ISSN: 1432-1289
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001080050186
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    Paper (German National Licenses)
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