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  • 1
    Electronic Resource
    Electronic Resource
    Coronary heart disease in young Type 1 (insulin-dependent) diabetic patients with and without diabetic nephropathy: incidence and risk factors (1987)
    Springer
    Diabetologia 30 (1987), S. 144-148 
    Details
    ISSN: 1432-0428
    Keywords: Type 1 (insulin-dependent) diabetes ; diabetic nephropathy ; coronary heart disease ; cardiovascular risk factors
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Fifty-nine Type 1 (insulin-dependent) diabetic patients with (group I) and 59 patients without nephropathy (group II) pair-matched according to sex (30 males and 29 females), age (33 years, range 15–48) and diabetes duration (19 years, range 6–42) were followed for a period of 10 years from about 5 years before to 5 years after onset of proteinuria. The cumulative incidence of coronary heart disease was estimated, and blood pressure and serum cholesterol were followed. Within six years after onset of proteinuria the cumulative incidence of coronary heart disease was increased eight-fold in group I (40%) compared with group II (5%), (p〈0.001). Blood pressure was higher in group I compared with group II from before onset of proteinuria (135/86±17/9 mmHg vs 129/80±15/8 mmHg, p〈0.001), and serum cholesterol elevated from onset of proteinuria in group I (6.3±1.2 mmol/l) vs. group II (5.5±1.0 mmol/l), (p〈0.005). Patients in group I who developed coronary heart disease had similar age (36 years, range 21–51, vs 38 years, range 21–53), sex (50% males vs. 52% males), smoking frequency (50% vs 49%), diabetes duration (22 years, range 9–39, vs 24 years, range 10–42) and serum creatinine (110 μmol/l, range 69–284, vs 108 μmol, range 72–1024) compared with patients not developing coronary heart disease. However, the patients with coronary heart disease had higher blood pressure (135/87mmHg±16/9 vs 128/82±15/7, p〈0.05) and serum cholesterol (7.3 mmol/l+ 1.2 vs 6.4 mmol/l±0.9, p〈0.05) than patients without coronary heart disease. Thus, patients developing clinical nephropathy have a highly increased incidence of coronary heart disease compared with patients not developing nephropathy. Patients who developed coronary heart disease were characterized by higher blood pressure and serum cholesterol.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00274218
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Size- and charge selectivity of glomerular filtration in Type 1 (insulin-dependent) diabetic patients with and without albuminuria (1993)
    Springer
    Diabetologia 36 (1993), S. 244-251 
    Details
    ISSN: 1432-0428
    Keywords: Diabetes mellitus ; dextran clearance ; IgG4 ; IgG ; IgG/IgG4 selectivity index ; diabetic nephropathy ; tubular function
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Albuminuria is the first clinical event in the development of diabetic nephropathy. We assessed glomerular charge- and size selectivity in 51 patients with Type 1 (insulin-dependent) diabetes mellitus of juvenile onset and 11 healthy individuals. Patients were allocated to five groups. The urinary albumin excretion rate was normal in group D1; 30–100 mg/24 h in group D2; 101–300 mg/24 h in group D3 and greater than 300 mg/24 h in groups D4 and D5. Group D5 had elevated serum creatinine (above 110 μmol/l). Glomerular filtration rate and renal plasma flow were determined by constant infusion techniques and tubular protein reabsorption by excretion of β2-microglobulin. Charge selectivity was estimated from the IgG/IgG4 selectivity index. Size selectivity was measured by dextran clearance. Dextran was measured by refractive index detection after fractionation (2 Å fractions in the range 26–64 Å) by size exclusion chromatography. IgG/IgG4 selectivity index was significantly decreased in patients with albuminuria (p〈0.001). The drop in IgG/IgG4 selectivity index was found in patients with minimal albuminuria (D2) and was not accompanied by any changes in tubular function or glomerular haemodynamics. Size selectivity was significantly altered only in patients with the most advanced nephropathy (D5) as reflected by an increase in the clearance of 62 Å dextran (p〈0.04). We conclude that loss of glomerular charge selectivity precedes or accompanies the formation of new glomerular macromolecular pathways in the development of diabetic nephropathy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00399958
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Glomerular charge selectivity and the influence of improved blood glucose control in Type 1 (insulin-dependent) diabetic patients with microalbuminuria (1992)
    Springer
    Diabetologia 35 (1992), S. 1165-1169 
    Details
    ISSN: 1432-0428
    Keywords: Type 1 (insulin-dependent) diabetes mellitus ; nephropathy ; microalbuminuria ; continuous subcutaneous insulin infusion ; metabolic control ; glomerular charge selectivity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary We first compared glomerular charge selectivity index in two matched groups of Type 1 (insulin-dependent) diabetic patients with micro and normoalbuminuria respectively, and secondly, investigated prospectively in a randomized clinical trial, the influence of improved metabolic control on selectivity index in diabetic patients with microalbuminuria. In Study 1, 27 patients with microalbuminuria (albumin excretion 〉-15 μg/min in at least two out of three overnight urine samples) were matched (age, diabetes duration, mean 1-year HbA1c, gender) with normoalbuminuria patients (n=24), and in Study 2, 23 microalbuminuric patients were randomly allocated to either intensive (continuous subcutaneous insulin infusion) or conventional treatment. Glomerular charge selectivity index was measured as IgG/IgG4 selectivity index, i.e. total IgG/IgG4 clearance ratio in timed overnight urine samples. The microalbuminuric patients had a significantly reduced selectivity index compared to the normoalbuminuric patients: 1.20 (0.92–1.40) vs 1.68 (1.22–2.21), median and 95% confidence interval (p〈0.01). In Study 2, the HbA1c improved in the intensive-treatment group compared to the conventional-treatment group: at 2, 6 and 12 months the difference in mean percentage HbA1c between the groups was 1.1, 1.2 and 1.4, respectively (p〈0.01). A sharp 50% increment in IgG/IgG4 selectivity index was seen in the intensive-treatment group during the first 6 months (p〈0.05 compared to the conventional group). We conclude that adolescents and young adults in an early stage of diabetic nephropathy have reduced glomerular charge selectivity, which may be improved by reducing the mean blood glucose level.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00401371
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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