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Abstract

Glucose absorbed from conventional peritoneal dialysis (PD) solutions contributes to unfavorable metabolic effects. Its replacement with a glucose-free osmotic agent such as icodextrin (ID) or amino acids (AA) may have some benefit on glucose and lipid metabolism. Serum lipids, insulin sensitivity and substrate oxidation (calorimetry) were measured before and after 8 weeks use of ID or AA in 22 patients. Calorimetry and blood tests (HbA1c, lipids) were also performed after 8 weeks of simultaneous use of ID and AA in 8 patients. Cholesterol declined during the use of AA (4.8 +/- 0.3-4.5 +/- 0.3 mmol/l, p = 0.045). Triglycerides decreased during the use of both ID (2.2 +/- 0.2-1.9 +/- 0.1 mmol/l, p = 0.019) and AA (1.9 +/- 0.2-1.6 +/- 0.1 mmol/l, p = 0.024). Free fatty acids declined during the use of AA. There were no significant changes in insulin sensitivity. Glucose oxidation decreased and lipid oxidation increased during the use of ID, the changes in substrate oxidation were accentuated during the simultaneous use of ID and AA. Replacement of glucose with ID or AA had a benefit on glucose and lipid metabolism. Copyright (c) 2005 S. Karger AG, Basel.

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Are there two types of malnutrition in chronic renal failure? Evidence for relationships between malnutrition, inflammation and atherosclerosis (MIA syndrome).

P Stenvinkel, O Heimbürger, B. Lindholm … (2000)

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Insulin resistance in uremia.

Rosa Hendler, A Alvestrand, R. DeFronzo … (1981)

Tissue sensitivity to insulin was examined with the euglycemic insulin clamp technique in 17 chronically uremic and 36 control subjects. The plasma insulin concentration was raised by approximately 100 microU/ml and the plasma glucose concentration was maintained at the basal level with a variable glucose infusion. Under these steady-state conditions of euglycemia, the glucose infusion rate is a measure of the amount of glucose taken up by the entire body. In uremic subjects insulin-mediated glucose metabolism was reduced by 47% compared with controls (3.71 +/- 0.20 vs. 7.38 +/- 0.26 mg/kg . min; P less than 0.001). Basal hepatic glucose production (measured with [3H]-3-glucose) was normal in uremic subjects (2.17 +/- 0.04 mg/kg . min) and suppressed normally by 94 +/- 2% following insulin administration. In six uremic and six control subjects, net splanchnic glucose balance was also measured directly by the hepatic venous catheterization technique. In the postabsorptive state splanchnic glucose production was similar in uremics (1.57 +/- 0.03 mg/kg . min) and controls (1.79 +/- 0.20 mg/kg . min). After 90 min of sustained hyperinsulinemia, splanchnic glucose balance reverted to a net uptake which was similar in uremics (0.42 +/- 0.11 mg/kg . min) and controls (0.53 +/- 0.12 mg/kg . min). In contrast, glucose uptake by the leg was reduced by 60% in the uremic group (21 +/- 1 vs. 52 +/- 8 mumol/min . kg of leg wt; P less than 0.005) and this decrease closely paralleled the decrease in total glucose metabolism by the entire body. These results indicate that: (a) suppression of hepatic glucose production by physiologic hyperinsulinemia is not impaired by uremia, (b) insulin-mediated glucose uptake by the liver is normal in uremic subjects, and (c) tissue insensitivity to insulin is the primary cause of insulin resistance in uremia.

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The impact of an amino acid-based peritoneal dialysis fluid on plasma total homocysteine levels, lipid profile and body fat mass.

H F Brulez, C van Guldener, A Donker … (1999)

The caloric load from glucose-based peritoneal dialysis (PD) fluids contributes to hypertriglyceridaemia, adiposity and, as result of anorexia, protein malnutrition in PD patients. It has been suggested that replacement of a glucose-based by an amino acids-based PD fluid (AA-PDF) for one exchange per day might improve the nutritional status and lipid profile. Due to the uptake of methionine from the dialysate, however, exposure to AA-PDF might aggravate hyperhomocysteinaemia, a frequently occurring risk factor for atherosclerosis in uraemic patients.

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PubMed ID:: 15980620

DOI:: 10.1159/000086553

ScienceOpen disciplines: Chemistry

Keywords: Adult,Aged,Amino Acids,pharmacology,Diabetes Mellitus,metabolism,Female,Glucans,Glucose,Hemodialysis Solutions,Humans,Lipid Metabolism,Male,Middle Aged,Peritoneal Dialysis, Continuous Ambulatory,methods

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Benefit of glucose-free dialysis solutions on glucose and lipid metabolism in peritoneal dialysis patients.

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Abstract

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Karger: Nephrology

Most cited references 6

Are there two types of malnutrition in chronic renal failure? Evidence for relationships between malnutrition, inflammation and atherosclerosis (MIA syndrome).

Insulin resistance in uremia.

The impact of an amino acid-based peritoneal dialysis fluid on plasma total homocysteine levels, lipid profile and body fat mass.

Author and article information

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