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Biomedical subjects

E Hommel

Publications and source records attributed to E Hommel.

At least 19 recordsLinked to original sources

Orosomucoid in urine is a powerful predictor of cardiovascular mortality in normoalbuminuric patients with type 2 diabetes at five years of follow-up.

AIMS/HYPOTHESIS: To study whether urinary orosomucoid excretion rate (UOER) predicts mortality in normoalbuminuric patients with diabetes at 5 years of follow-up, and to investigate the relationship between orosomucoid in serum and urine. METHODS: A cohort of 578 patients with diabetes (430 type 2, 148 type 1) was followed prospectively for an average of 5 years. UOER was measured in timed overnight urine samples. RESULTS: Eighty-two patients with type 2 diabetes and 17 patients with type 1 diabetes died. Among patients with type 2 diabetes, 251 (58%) had normoalbuminuria; increased UOER independently predicted cardiovascular mortality (OR 4.94, 95% CI 1.60-15.22; p<0.006) in those with normoalbuminuria and in the entire cohort of patients with type 2 diabetes (odds ratio 3.63, 95% CI 1.50-8.81; p<0.005). Patients with increased UOER had a higher all-cause mortality than those with normal UOER (log-rank test, p<0.001 for type 2 patients; p<0.04 for type 1 patients). In patients with type 1 diabetes, there were five cardiovascular deaths and no significant predictive value of UOER. Patients with increased UOER had a subclinical increase in serum orosomucoid. CONCLUSION/INTERPRETATION: Increased UOER was an independent, powerful predictor of cardiovascular mortality in normoalbuminuric patients with type 2 diabetes and in the entire cohort of patients with type 2 diabetes. There were indications of UOER as being a valuable marker in type 1 diabetes that showed differences in survival between patients with normal versus increased UOER. Serum orosomucoid was associated with UOER; UOER may be a marker of low-grade inflammation in patients with diabetes.

Biomarkers↗

Pregnancy and progression of diabetic nephropathy.

AIMS/HYPOTHESIS: Pregnancy could damage kidney function in diabetic nephropathy. We investigated the long-term impact of pregnancy on the progression of diabetic nephropathy. METHODS: Our observational follow-up study included all women patients with Type I (insulin-dependent) diabetes mellitus who developed diabetic nephropathy between 1970 and 1989 at Steno Diabetes Center (n = 93). Follow-up lasted 16 years (range 3-28) from the onset of diabetic nephropathy until death or the year 2000. A total of 26 women became pregnant after the onset of diabetic nephropathy (group A). The remaining 67 served as control subjects (group B). All patients received aggressive antihypertensive treatment (blood pressure goal < 140/90 mmHg). RESULTS: The two groups were comparable at onset of diabetic nephropathy regarding blood pressure, albuminuria, s-cholesterol, smoking, retinopathy and s-creatinine (mean 79(SD 23) micromol/l). The slopes of 1/s-creatinine (1000.l.micromol(-1).year(-1)) during the whole observation period were -0.39(0.40) compared with -0.41(0.70) (group A vs B-NS). The slopes of 1/s-creatinine before and after pregnancy were similar. Decline in creatinine clearance (ml/min/yr) was 3.2 (3.4) compared with 3.2 (5.1) (group A vs B -NS). At the end of follow-up, 35 % (95 %-CI:17-53) of the pregnant women had died and 19 % (7-39) had reached end stage renal disease compared to 34 % (23-45) and 24 %(14-34) of the control subjects, respectively(NS). Group A and B had similar blood pressure levels during the whole observation period: 136(13)/83(7) vs 139 (14)/85(7) mmHg (NS). CONCLUSION/INTERPRETATION: Pregnancy has no adverse long-term impact on kidney function and survival in Type I diabetic patients with well-preserved kidney function (normal serum creatinine) suffering from diabetic nephropathy.

Adult↗

Orosomucoid in urine predicts cardiovascular and over-all mortality in patients with Type II diabetes.

AIMS/HYPOTHESIS: Urinary orosomucoid excretion rate is increased in a substantial proportion of patients with Type II (non-insulin-dependent) diabetes mellitus and normal urinary albumin excretion rate. The aim of this study was to determine whether increased urinary orosomucoid excretion rate is predictive of increased mortality in patients with Type II diabetes. METHODS: In a cohort study including 430 patients with Type II diabetes, baseline urinary samples were analysed for orosomucoid and albumin. Mean follow-up was 2.4 years. RESULTS: We found that 188 (44 %) patients had normal and 242 (56 %) patients had increased urinary orosomucoid excretion rates. During the study period 41 patients died; out of these 23 patients died of cardiovascular diseases. Odds ratio for all-cause mortality was 2.50 (95 % CI 1.00-6.22) and odds ratio for cardiovascular mortality was 9.81 (1.31-73.6) having increased urinary orosomucoid excretion rate at baseline (odds ratios adjusted for age, sex, duration of diabetes, cardiovascular diseases, weight, medication, HbA1 c, plasma creatinine and urinary albumin excretion rate). Urinary albumin excretion rate was an independent predictor of all-cause mortality when urinary orosomucoid excretion rate was not included in the analysis. Subgroup analysis revealed that 39 % of the patients with normal urinary albumin excretion rate (n = 251) had increased urinary orosomucoid excretion rates and that these patients had a higher cardiovascular mortality (p = 0.007) than patients with normal urinary albumin excretion rate and normal urinary orosomucoid excretion rates. CONCLUSION/INTERPRETATION: We found that urinary orosomucoid excretion rate predicted all-cause and cardiovascular mortality in patients with Type II diabetes independently from other risk factors.

Albuminuria↗

Long-term beneficial effect of ACE inhibition on diabetic nephropathy in normotensive type 1 diabetic patients.

BACKGROUND: The purpose of this study was to assess whether long-term (8 years) inhibition of angiotensin-converting enzyme (ACE) protects kidney function in normotensive type 1 diabetic patients with diabetic nephropathy. METHODS: We performed an open randomized follow-up study of normotensive type 1 diabetics with nephropathy either treated (N = 15) or not (N = 17) with captopril twice per day (average 74, range 12.5 to 125 mg/day). The main outcome measures were arterial blood pressure, albuminuria, and glomerular filtration rate (GFR; 51Cr-EDTA plasma clearance, twice yearly). RESULTS: Arterial blood pressure (mm Hg) was kept constant in the captopril group, at baseline (mean, SEM), 128/78 (3/2) and during follow-up 129/77 (4/1) but increased significantly in the control group from 127/79 (2/1) to 137/84 (5/2) (P < 0.01). Furthermore, 8 out of the 17 control subjects required treatment with blood pressure-lowering drugs because they developed hypertension. The fractional albumin clearance (x10-5) remained unchanged in the captopril group: baseline [10.8 (1.25) geometric mean and antilog (SEM)] during the eight years [11.8 (1.47)], while a significant rise occurred in control patients: 13.3 (1.23) to 26.2 (1.42) (P < 0.05). Baseline GFR was nearly identical: 111 (6) and 115 (4) mL/min/1.73 m2 in the captopril and control group, respectively. The median (range) rate of decline in GFR (mL/min/year) was 1.7 (10.7 to -2.0) in the captopril group versus 2.8 (17.7 to -2.6) in the control group (P = NS). CONCLUSIONS: The beneficial effect of captopril in arresting the rise in systemic blood pressure and albuminuria is long lasting. A loss in GFR is minimal in most patients with diabetic nephropathy if normotension is sustained by prospective treatment with ACE inhibitors or restored by implementation of other antihypertensive medications with the development of hypertension.

Adult↗

Assessment of glomerular filtration rate in diabetic nephropathy using the plasma clearance of 51Cr-EDTA.

Plasma clearance of 51Cr-EDTA is widely used to assess the glomerular filtration rate (GFR) in diabetic nephropathy. Originally, the ratio between the intravenously injected amount of tracer and the total area under the plasma concentration curve was used for the calculation of total 51Cr-EDTA plasma clearance (C(T)). Simplified methods, using the final mono-exponential part of the plasma curve, have been suggested, e.g. four samples, taken 180 to 240 min after injection (C(IV)), or using one sample taken at 240 min (C(I)). Our aim was to evaluate the agreement between measurements of GFR and rate of decline in GFR based upon these three methods. Bland & Altman plots were used to illustrate the range of agreement. We investigated 76 insulin-dependent diabetic (IDDM) patients with microalbuminuria or diabetic nephropathy. GFR was measured after a single intravenous injection of 3.7 MBq 51Cr-EDTA by determining the radioactivity in venous blood samples taken 5, 7, 10, 15, 30, 45, 60, 90, 120, 150, 180, 200, 220, and 240 min after the injection. Rate of decline in GFR was assessed using 12 (6-17) determinations of GFR over a period of time of 8 (4-10) years. Mean (SD) GFRT was 123 (21) ml x min(-1) compared to GFR(IV) 123 (21) ml x min(-1) (NS) and GFR(I) 115 (17) ml x min(-1) (p < 0.00001). The mean difference (95% limits of agreement) between GFR(T) and GFR(IV) was +0.6 (-16.6 to +17.7) ml x min(-1), and between GFR(T) and GFR(I) +8.0 (-6.0 to +22.2) ml x min(-1). The difference between GFR(T) and GFR(I) was significantly correlated with their mean value (r = 0.56, p < 0.00001), indicating increasing underestimation by GFR(I) with increasing GFR levels. The mean (SD) rate of decline in GFR(T) was 2.3 (3.9) ml x min(-1) x year(-1), compared to a mean rate of decline in GFR(IV) of 2.4 (3.6) ml x min(-1) x year(-1) (NS), and a mean rate of decline in GFR(I) of 2.2 (3.5) ml x min(-1) x year(-1) (NS). The mean difference (95% limits of agreement) between rate of decline in GFR(T) and rate of decline in GFR(IV) was +0.16 (-1.59 to +1.91) ml x min(-1) x year(-1), and between rate of decline in GFR(T) and rate of decline in GFR(I) -0.01 (-1.64 to +1.61) ml x min(-1) x year(-1), respectively. In conclusion, our cross-sectional study revealed a close agreement between GFR(T) and GFR(IV) with acceptable limits of agreement (precision), while GFR(I) lacked accuracy. However, a close agreement between rate of decline in GFR(T) and rate of decline in GFR(IV), and between rate of decline in GFR(T) and rate of decline in GFR(I), with acceptable limits of agreement (precision), suggests that both simplified methods are applicable for long-term follow-up.

Chromium Radioisotopes↗

Stable glomerular filtration rate in normotensive IDDM patients with stable microalbuminuria. A 5-year prospective study.

OBJECTIVE: To investigate the long-term course of glomerular filtration rate (GFR) in IDDM patients with microalbuminuria in order to identify patients with stable or declining kidney function over a 5-year study. RESEARCH DESIGN AND METHODS: Forty normotensive (129 +/- 11/80 +/- 8 mmHg) IDDM patients with persistent microalbuminuria (mean urinary albumin excretion [UAE] 84 mg/24 h [range 30-300]) were followed prospectively for 5 years of clinical examinations that included the measurement of GFR (51Cr-labeled EDTA clearance) at least once a year. The mean GFR at baseline was 120 +/- 18 ml x min-1.1 x 73 m-2. RESULTS: Using multiple regression analysis, the rate of decline in GFR was independently correlated to onset of diabetic nephropathy (P < 0.001) and systolic blood pressure (sBP) at baseline (P < 0.05). Increase in UAE was correlated to the mean HbA1c during the observation period. Out of 40 patients, 14 progressed to diabetic nephropathy (UAE > 300 mg/24 h). These patients had a significant reduction in GFR (mean -2.2 +/- 3.8 ml x min-1 x year-1; P = 0.05), while GFR remained stable in the remaining 26 patients with nonprogressive microalbuminuria (change in GFR 0.5 +/- 2.1 ml x min-1 x year-1; NS). The difference in the rate of decline of GFR was significant (mean 2.7 ml x min-1 x year-1; P < 0.05). CONCLUSIONS: Normotensive IDDM patients with nonprogressive microalbuminuria have a stable GFR. Progression of UAE to diabetic nephropathy heralds a progressive loss of kidney function. Efforts should be made to prevent the progression from microalbuminuria to diabetic nephropathy in every IDDM patient with microalbuminuria.

Adult↗

Benefits of long-term antihypertensive treatment on prognosis in diabetic nephropathy.

We assessed the prognosis of diabetic nephropathy during long-term antihypertensive treatment as compared to the prognosis during the natural history of this complication in a prospective study of all IDDM patients (N = 45) aged under 50 with onset of diabetes before the age of 31 who developed diabetic nephropathy between 1974 and 1978 at Steno Diabetes Center, and were followed until death or for at least 16 years [median 16 (4 to 21) years]. Antihypertensive treatment was started 3 (0 to 13) years after onset of diabetic nephropathy. Mean arterial blood pressure at start of antihypertensive treatment was 148/96 (sd 12/10) mm Hg and 143/86 (16/6) mm Hg during the whole interval of antihypertensive treatment (P < 0.01). The cumulative death rate was 45% (95% C.I. 38 to 52) 16 years after onset of diabetic nephropathy, in contrast to previous reports 88% and 94% 12 and 16 years after onset of diabetic nephropathy, respectively. The median survival time in our study exceeded 16 years as compared to five and seven years in untreated patients in the past. Uremia was the main cause of death (12 patients; 55%). In 1994 serum creatinine was 116 (74 to 311) mumol/liter in the 23 surviving patients. The preservation of kidney function and the prognosis of diabetic nephropathy has improved during the past two decades mainly because of effective antihypertensive treatment.

Adult↗

Angiotensin-converting enzyme inhibition in diabetic nephropathy: ten years' experience.

The aim of our prospective study was to evaluate putative progression promoters, kidney function, and prognosis during long-term treatment with angiotensin-converting enzyme inhibition in insulin-dependent diabetes mellitus patients suffering from diabetic nephropathy. Eighteen consecutive hypertensive insulin-dependent diabetes patients with nephropathy (mean age, 33 years) who had not been treated previously were all treated with captopril in combination with frusemide or bendrofluazide. The four patients who were refractory to this regimen also received nifedipine. Treatment was continued for a median of 8.9 years (range, 6.3 to 9.8, years). Renal function was assessed every 6 months by measurement of glomerular filtration rate (GFR) (single-bolus 51Cr-EDTA technique) and albuminuria by radioimmunoassay. Baseline values (+/- SE) were mean arterial blood pressure 146/93 +/- 3/1 mm Hg, albuminuria (geometric mean +/- antilog SE) 982 +/- 1.2 micrograms/min, and GFR 98 +/- 5 mL/min/1.73 m2. Angiotensin-converting enzyme inhibition induced a significant reduction during the whole treatment period of blood pressure (137/85 +/- 3/1 mm Hg; P < 0.01) and albuminuria (392 +/- 1.4 microns/min; P < 0.01), and the rate of decline in GFR was 4.4 +/- 0.7 mL/min/yr, in contrast to previous reports of 10 to 14 mL/min/yr (natural history). Univariate analysis revealed a significant correlation between the rate of decline in GFR and mean arterial blood pressure (r = 0.58, P = 0.01), albuminuria (r = 0.67, P < 0.01), hemoglobin A1c (r = 0.69, P < 0.01), and serum total cholesterol concentration (r = 0.51, P < 0.05).(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗

Reduction in albuminuria predicts a beneficial effect on diminishing the progression of human diabetic nephropathy during antihypertensive treatment.

Diabetic nephropathy is the main cause of increased mortality and morbidity in IDDM patients. The effect of antihypertensive treatment on the progression of the nephropathy is highly variable. The aim of this study was to evaluate putative predictors of the progression in diabetic nephropathy during long-term antihypertensive treatment. Eighteen hypertensive IDDM patients with diabetic nephropathy, who had not been treated previously, were followed during 3 years of treatment with captopril and frusemide or bendrofluazide. Glomerular filtration rate, arterial blood pressure, albuminuria and adjusted albuminuria were used as putative predictors of rate of decline in glomerular filtration. Fall rate in glomerular filtration rate was 4.6 (4.0) ml.min-1.year-1 (mean (SD)) during treatment. Relative change in albuminuria (ratio of first year of treatment/baseline) and albuminuria during first year of treatment were significantly correlated to fall rate in glomerular filtration rate during 3 years of treatment (r = 0.73, p < 0.001) and (r = 0.60, p < 0.01), respectively. Arterial blood pressure and glomerular filtration rate measured at baseline, during first year of treatment or relative changes in these variables did not correlate with fall rate in glomerular filtration rate during 3 years of treatment. Haemoglobin A1c, serum-cholesterol, protein intake and sodium excretion remained unchanged during treatment, and were not correlated with loss of kidney function. Reduction in albuminuria during captopril treatment predicts an attenuated rate of decline in glomerular filtration rate in early diabetic nephropathy (glomerular filtration rate > 70 ml.min-1.1.73 m-2). The finding suggests a clinical application in monitoring the efficacy of antihypertensive treatment in early diabetic nephropathy.

Adult↗

Reduction in albuminuria predicts diminished progression in diabetic nephropathy.

We have evaluated putative predictors of the progression in diabetic nephropathy during long-term antihypertensive treatment. Twenty hypertensive insulin-dependent diabetic patients with nephropathy were followed for three (2 to 5) years before, and for three years during antihypertensive treatment with metoprolol and furosemide. Fall rate in glomerular filtration rate (GFR) was 9.5 +/- 3.8 ml/min/year (mean +/- SD) before and 3.6 +/- 3.6 during antihypertensive treatment. Albuminuria was 1442 (150 to 7564) micrograms/min (median range) in the last year before and 880 (96 to 3310) micrograms/min in the first year during treatment. Relative change in adjusted albumin excretion (ratio of values obtained during first year of treatment/and last year before) was significantly correlated to fall rate in GFR during the three years of treatment (r = 0.46, P < 0.05) and to relative change in fall rate in GFR (fall rate during and before treatment were compared) (r = 0.47, P < 0.05). No significant correlations were found between fall rate in GFR during the three years of treatment and arterial blood pressure, albuminuria or GFR measured the last year before, the first year during treatment or the relative changes in these three variables (after-before). In conclusion, a decrease in fractional albumin excretion during conventional antihypertensive treatment predicts an attenuated fall rate in GFR in diabetic nephropathy. The finding suggests a clinical application in monitoring the efficacy of antihypertensive treatment in diabetic nephropathy.

Adult↗

Apolipoprotein(a) and cardiovascular disease in type 2 (non-insulin-dependent) diabetic patients with and without diabetic nephropathy.

The relative mortality from cardiovascular disease is on average increased five-fold in Type 2 (non-insulin-dependent) diabetic patients with diabetic nephropathy compared to non-diabetic subjects. We assessed the possible contribution of dyslipidaemia in general and elevated serum apolipoprotein(a) (apo(a)) in particular. Type 2 diabetic patients with normo-, micro- and macroalbuminuria were compared with healthy subjects. Each group consisted of 37 subjects matched for age, sex and diabetes duration. Serum creatinine in the nephropathy group was 105 (54-740) mumol/l. The prevalence of ischaemic heart disease (resting ECG, Minnesota, Rating Scale) was 57, 35, 19 and 2% in macro-, micro- and normoalbuminuric diabetic patients and healthy subjects, respectively. The prevalence of ischaemic heart disease was higher in all diabetic groups as compared to healthy subjects (p < 0.05), and higher in macroalbuminuric as compared to normoalbuminuric diabetic patients (p < 0.01). There was no significant difference between apo(a) in the four groups: 161 (10-1370), 191 (10-2080), 147 (10-942), 102 (10-1440) U/l (median (range)) in macro-, micro- and normoalbuminuric groups and healthy subjects. Serum total-cholesterol, HDL-cholesterol and LDL-cholesterol were not significantly different when comparing healthy subjects and each diabetic group. Apolipoprotein A-I was lower (p < 0.05) in all diabetic groups as compared to healthy subjects (nephropathy vs healthy subjects): 1.50 +/- 0.25 vs 1.69 +/- 0.32 g/l (mean +/- SD). Triglyceride was higher (p < 0.05) in patients with nephropathy and microalbuminuria as compared to healthy subjects (nephropathy vs healthy subjects): 2.01 (0.66-14.7) vs 1.09 (0.41-2.75) mmol/l (median (range)).(ABSTRACT TRUNCATED AT 250 WORDS)

Albuminuria↗

Effective antihypertensive treatment postpones renal insufficiency in diabetic nephropathy.

The effect of long-term, aggressive, antihypertensive treatment on kidney function in diabetic nephropathy was studied prospectively in 11 insulin-dependent diabetic patients (mean age, 30 years). Renal function was assessed every 4 months by measurement of glomerular filtration rate (GFR) (single-bolus 51Cr-EDTA technique) and by albuminuria (radial immunodiffusion). During the median pretreatment period of 2.4 years (range, 1.9 to 5.5 years), the GFR decreased significantly and albuminuria and the arterial blood pressure increased significantly. During the 9.7-year (range, 2.8 to 10.4 year) period of antihypertensive treatment with metoprolol, hydralazine, and furosemide, the arterial blood pressure decreased from 143/96 mm Hg to 130/84 mm Hg and albuminuria decreased from 1,038 micrograms/min to 547 micrograms/min. The rate of decline in GFR decreased from 10.7 mL/min/yr (range, 5.3 to 17.5 mL/min/yr) before treatment to 2.5 mL/min/yr (range, 0.5 to 4.8 mL/min/yr) during treatment. The rate of decline in GFR is significantly smaller during the last 6 years compared with the first 3 years in patients who received long-term antihypertensive treatment (> or = 9 years). One patient died from acute myocardial infarction (GFR, 46 mL/min/1.73 m2). Effective antihypertensive treatment postpones renal insufficiency in diabetic nephropathy.

Adult↗

Impact of arterial blood pressure and albuminuria on the progression of diabetic nephropathy in IDDM patients.

To evaluate the impact of systemic blood pressure and albuminuria on the progression of diabetic nephropathy, we followed 41 IDDM patients with persistent albuminuria (> 300 mg/24 h) by measuring glomerular filtration rate (51Cr-EDTA technique), blood pressure, and albuminuria. None of the patients were taking drugs other than insulin. Arterial blood pressure, albuminuria, and blood glucose were measured four to eight times/yr, whereas glomerular filtration rate was determined twice yearly. During the median investigation period of 36 (15-66) mo, glomerular filtration rate decreased from 102 +/- 23 to 83 +/- 27 ml.min-1 x 1.73 m-2 (P < 0.001), albuminuria increased from 633 to 1435 micrograms/min (P < 0.001), and blood pressure rose from 133/85 +/- 10/9 to 149/93 +/- 8/11 mmHg (P < 0.001). Univariate analysis revealed a significant correlation between the rates of decline in glomerular filtration rate and diastolic blood pressure (r = 0.52, P < 0.01) and glomerular filtration rate and albuminuria (r = 0.34, P < 0.02). But stepwise multiple linear regression analysis only showed a significant correlation between the rate of decline in glomerular filtration rate and diastolic blood pressure (P < 0.01). In patients with diastolic blood pressure below the mean value of 89 mmHg, stepwise multiple regression analysis showed that albuminuria and not blood pressure was correlated significantly with rate of decline in glomerular filtration rate. Patients were stratified by average value of diastolic blood pressure measured during the investigation period.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗

Plasma lipoproteins and renal function during simvastatin treatment in diabetic nephropathy.

The aim of this study was to assess the effect of simvastatin on plasma lipoproteins and renal function in hypercholesterolaemic Type 1 (insulin-dependent) diabetic patients with diabetic nephropathy. Twenty-six hypercholesterolaemic (total cholesterol greater than or equal to 5.5 mmol/l) Type 1 diabetic patients with nephropathy were enrolled in a double-blind randomized placebo-controlled study for 12 weeks. The active treatment group (n = 14) received simvastatin (10-20 mg/day) for 12 weeks while the remaining 12 patients received treatment with placebo. The results during simvastatin treatment (baseline vs 12 weeks): total cholesterol 6.6 vs 4.8 mmol/l (p less than 0.01), LDL-cholesterol 4.25 vs 2.57 mmol/l (p less than 0.01) and apolipoprotein B 1.37 vs 1.06 mmol/l (p less than 0.01). HDL-cholesterol, and apolipoprotein A-I remained unchanged. Total cholesterol, LDL-cholesterol, HDL-cholesterol, apolipoprotein A-I, apolipoprotein B remained unchanged during placebo treatment. Albuminuria measured during the simvastatin and the placebo treatment (baseline vs 12 weeks) (the data are logarithmically transformed before analysis because of their positively skewed transformation; geometric mean (x/divided by antilog SE) is indicated) was 458 (x/divided by 1.58) vs 393 (x/divided by 1.61) and 481 (x/divided by 1.62) vs 368 (x/divided by 1.78 micrograms/min (NS). Glomerular filtration rate during simvastatin and placebo treatment (baseline vs 12 weeks) was 64 vs 63 and 72 vs 74 ml.min-1.1.73 m-2, respectively. Two patients receiving simvastatin treatment were withdrawn, one due to gastrointestinal side effects and one due to myalgia.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗

Is diabetic nephropathy an inherited complication?

For yet unidentified reasons less than 50% of patients with insulin-dependent mellitus develop diabetic nephropathy. Genetic factors have been suggested as risk markers for development of nephropathy in diabetes. To further evaluate this hypothesis we studied the prevalence of nephropathy in diabetic siblings of diabetic patients with and without nephropathy. From a representative sample of 619 patients with insulin-dependent diabetes, we identified 20 patients with and 29 patients without nephropathy having diabetic siblings. Diabetic nephropathy (defined as urinary albumin excretion greater than 300 mg/24 hr) was found in 7 out of 21 siblings to patients with nephropathy and 3 out of 30 siblings to normoalbuminuric patients (P less than 0.04). No significant differences between the two groups of siblings with respect to age, diabetes duration, sex distribution, blood pressure or glycosylated hemoglobin A1c-levels were found. A significant correlation within sib-pair of glycosylated hemoglobin A1c was found (r = 0.47; P less than 0.001). We conclude that familial clustering of diabetic nephropathy does occur. This clustering may either be due to genetic inheritance or to sib-similarities due to shared environment, as indicated by the correlation of glycosylated hemoglobin A1c within sib-pairs.

Albuminuria↗

Placebo-controlled comparison of captopril, metoprolol, and hydrochlorothiazide therapy in non-insulin-dependent diabetic patients with primary hypertension.

The antihypertensive effect of captopril, metoprolol, and hydrochlorothiazide was compared in 23 non-insulin-dependent (NIDDM) diabetic patients less than or equal to 75 years of age, with borderline to moderate primary hypertension. In a double blind, placebo-controlled cross-over trial the patients were treated with 25 to 50 mg captopril, 50 to 100 mg metoprolol, 12.5 to 25 mg hydrochlorothiazide, and placebo, each given twice daily for 8 weeks. Antidiabetic treatment remained unchanged during the study. After receiving placebo for a 4 week run-in period, arterial blood pressure was 168/101 +/- 93/10 (mean +/- SEM) mm Hg. Diastolic blood pressure was lowered significantly during all active treatment periods compared to the placebo value of 97 +/- 2 mm Hg: captopril, 92 +/- 1 mm Hg; metoprolol, 90 +/- 1 mm Hg; hydrochlorothiazide, 91 +/- 1 mm Hg. Metabolic variables were not significantly altered by captopril and metoprolol, while hydrochlorothiazide treatment increased hemoglobin A1c from 7.5 +/- 0.3 to 8.2 +/- 0.4% (P less than .001), decreased high-density lipoprotein-cholesterol from 1.19 +/- 0.08 to 1.10 +/- 0.06 mmol/L (P less than .05). Glomerular filtration rate, urinary albumin excretion, orthostatic blood pressure response, and digital systolic blood pressure in the lower limb remained unchanged during the active treatment periods. The frequency of subjective adverse effects was acceptable during active treatment and not significantly different compared to placebo. We conclude that antihypertensive treatment for 8 weeks with captopril or metoprolol in NIDDM patients is well-tolerated and causes no deterioration in metabolic control and kidney function, while hydrochlorothiazide causes a slight deterioration in glycemic control and lipid profile.

Aged↗

Apolipoprotein(a) in insulin-dependent diabetic patients with and without diabetic nephropathy.

Insulin-dependent diabetic patients with diabetic nephropathy have a highly increased morbidity and mortality from cardiovascular diseases. To determine whether altered levels of apolipoprotein(a) (apo(a)), the glycoprotein of the potentially atherogenic lipoprotein(a) (Lp(a)), contribute to the increased risk of ischaemic heart disease, apo(a) was determined in 50 insulin-dependent diabetic patients with diabetic nephropathy (group 1), in 50 insulin-dependent diabetic patients with microalbuminuria (group 2), in 50 insulin-dependent diabetic patients with normoalbuminuria (group 3), and in 50 healthy subjects (group 4). The groups were matched with regard to sex, age and body mass index. The diabetic groups were also matched with regard to diabetes duration. The level of apo(a) was approximately the same in the four groups, being: 122 (x/ divided by 4.2) U l-1, 63 (x/ divided by 4.4) U l-1, 128 (x/ divided by 3.5) U l-1 and 126 (x/ divided by 3.7) U l-1 (geometric mean (x/ divided by antilog SD)) in group 1, 2, 3 and 4, respectively. 1 U l-1 apo(a) approximates 0.7 mg l-1 Lp(a).(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗