Contribution of dialysis to endogenous oxalate production in patients with chronic renal failure

1994 ◽  
Vol 40 (8) ◽  
pp. 1544-1548 ◽  
Author(s):  
N C France ◽  
P T Holland ◽  
M R Wallace

Abstract We tested the possibility that the buffering agents in dialysis bath fluid might contribute to increased endogenous oxalate production in dialyzed patients. Using stable isotope dilution mass spectrometry, we obtained oxalate production rates and pool sizes directly for 10 patients in chronic renal failure, 5 of whom were undergoing continuous ambulatory peritoneal dialysis (lactate-buffered fluid). All peritoneal dialysis patients had either increased oxalate production rates or expanded oxalate pools when compared with undialyzed patients in renal failure. From a further four patients receiving maintenance hemodialysis we took blood samples immediately before and after three consecutive dialysis sessions in which the bath-fluid buffering agent (bicarbonate or acetate) was alternated; we analyzed these samples for oxalate and key precursors by capillary gas chromatography. Plasma glycine and serine concentrations remained within the physiological range. Glycolate and oxalate concentrations decreased, but the oxalate remained above normal after dialysis. All changes were independent of the bath-fluid buffering agent. We suggest that dialysis might stimulate the formation of oxalate by removing product inhibition of a late catabolic step.

1988 ◽  
Vol 35 (6) ◽  
pp. 865-876 ◽  
Author(s):  
SHINICHI SAKURAI ◽  
YOSHIHITO HARA ◽  
SHIRO MIURA ◽  
MICHIYUKI URABE ◽  
KENICHI INOUE ◽  
...  

2019 ◽  
Vol 25 (3) ◽  
pp. 230-254
Author(s):  
Farid Reza Ejlali ◽  
◽  
Mahmood Reza Khazaei ◽  
Zahra Mostafavian ◽  
Jalil Moshari ◽  
...  

Aims The aim of this study was to evaluate the effect of discontinuation of losartan in response to synthetic erythropoietin therapy on hemoglobin level in patients on maintenance hemodialysis. Methods & Materials This study was a pre-and post-interventional clinical trial. The population of the study was hemodialysis patients with chronic renal failure. In the beginning of the study, and three months after removal of losartan, the patients’ hemoglobin changes were compared. Findings Hemoglobin was significantly increased at the end of the study in all patients (from 10.90±1.66 at the beginning of the study to 11.37±1.42g/dl at the end of 3 months, P=0.046). No significant changes were seen in the hemoglobin level before and after intervention between patients according age, sex, and duration of the disease. Conclusion There was a significant increase in hemoglobin level at the end of study after losartan discontinuation. But this increase did not have a significant relationship with patient’s age, sex as well as the duration of the disease.


1975 ◽  
Vol 80 (2) ◽  
pp. 237-246 ◽  
Author(s):  
K. Ølgaard ◽  
C. Hagen ◽  
A. S. McNeilly

ABSTRACT Measurements of plasma prolactin (hPr), growth hormone (HGH), thyrotrophin (TSH), luteinizing (LH) – and follicle stimulating hormone (FSH) were performed in 20 women with chronic renal failure on regular dialysis. There was no significant difference in any of the hormone levels before and after the dialysis and no significant influence of the type of dialysis (haemodialysis and peritoneal dialysis) or the time of dialysis. Higher levels of plasma prolactin was found in the women on peritoneal dialysis than in the haemodialyzed women presumably due to the medical treatment. In the peritoneally dialyzed group four women had irregular menstruations and normal gonadotrophic levels, but elevated hPr and it is suggested that this finding is similar to that seen in the amenorrhoeagalactorrhoea syndrome, where hPr presumably in some way have anti-gonadotrophic actions at the gonadal level.


Author(s):  
D. Green ◽  
S. Santhanam ◽  
F.A. Krumlovsky ◽  
F. del Greco

β-Thromboglobulin (β-TG), a protein located in the α-granules of platelets, is released into the plasma when platelets are disrupted. Since plasma β-TG is cleared by the kidney, we measured β-TG levels in normal subjects and and in patients with chronicrenal failure, using a radioimmunoassay kit (Amersham Corp.). In 24 controls, mean values were 27 ± 12 (S.D.) ng ml-l and in 24 patients, 123 ± 41 ng ml-l , P <0.001. Because hemodialysis may induce platelet damage, we examined β-TG levels in patients before and after dialysis. Although platelet counts were unchanged, plasma β-TG levels rose in all but 2 patients, with an average increase of 30 ng ml-l. That the increase in β-TG was due to platelet disruption was confirmed by (1) no change in β-TG in 3 patients having peritoneal dialysis, and (2) studies of a patient with radiation nephritis and severe thrombocytopenia (18,000 per cu mm) secondary to chemotherapy. β-TG was 12 nR ml-l and did not increase after hemodialysis. We conclude that plasma β-TG is significantly elevated in patients with chronic renal failure, and that measurement of this protein provides a sensitive indicator of platelet disruption by hemodialysis.


1980 ◽  
Vol 3 (4) ◽  
pp. 203-208
Author(s):  
B.T. Burton

Today, management of irreversible renal failure is based primarily on maintenance hemodialysis and renal transplantation with a growing minority of patients treated by peritoneal dialysis. With regard to renal transplantation — the early promise of renal transplantation in the mid 1960's has given way to the realities of the late 1970's. There have been no major changes in the rejection rate of transplanted kidneys in recent years though today's mortality of transplant patients is considerably reduced over what it used to be. Moreover, universally the lack of availability of a sufficient number of organs for transplantation poses a formidable problem. It is all too apparent that current methods of blood purification in uremia are far from optimal. Even though the mortality in maintenance dialysis is relatively low, hemodialysis is characterized by a variety of complications and most maintenance dialysis patients are not optimally rehabilitated.


Author(s):  
Elżbieta Kimak ◽  
Andrzej Książek ◽  
Janusz Solski

AbstractStudies were carried out in 183 non-dialyzed, 123 hemodialysis, 81 continuous ambulatory peritoneal dialysis and 35 post-transplant patients and in 103 healthy subjects as a reference group. Lipids and apolipoprotein (apo)AI and apoB were determined using Roche kits. An anti-apoB antibody was used to separate apoB-containing apoCIII and apoE-triglyceride-rich lipoprotein (TRL) in the non-high-density lipoprotein (non-HDL) fraction from apoCIIInonB and apoEnonB in the HDL fraction in four groups of patients with chronic renal failure (CRF) and healthy subjects. Multivariate linear regression analysis was used to investigate the relationship between triglyceride (TG) or HDL-cholesterol (HDL-C) concentrations and lipoproteins. Dyslipidemia varied according to the degree of renal insufficiency, the type of dialysis and therapy regime in CRF patients. Lipoprotein disturbances were manifested by increased TG, non-HDL-C and TRL concentrations, and decreased HDL-C and apoAI concentrations, whereas post-renal transplant patients showed normalization of lipid and lipoprotein profiles, except for TG levels and total apoCIII and apoCIIInonB. The present study indicates that CRF patients have disturbed lipoprotein composition, and that hypertriglyceridemia and low HDL-C concentrations in these patients are multifactorial, being secondary to disturbed lipoproteins. The method using anti-apoB antibodies to separate apoB-containing lipoproteins in the non-HDL fraction from non-apoB-containing lipoproteins in HDL can be used in the diagnosis and treatment of patients with progression of renal failure or atherosclerosis. The variability of TG and HDL-C concentrations depends on the variability of TRL and cholesterol-rich lipoprotein concentrations, but the decreases in TG and increases in HDL-C concentrations are caused by apoAI concentration variability. These relationships, however, need to be confirmed in further studies.


PEDIATRICS ◽  
1977 ◽  
Vol 60 (1) ◽  
pp. 46-50
Author(s):  
William A. Primack ◽  
Ira Greifer

A hemodialysis unit was established at a rural summer camp for children. Required medical treatment was planned so as to interfere as little as possible with normal camp programs. Campers who require dialysis were mixed fully into the population of normal campers. Twenty-two children participated during the first summer of operation. Our experience indicates that children on maintenance hemodialysis can be integrated with normal peers in a recreational program and can improve their self-image and self-confidence. The program also demonstrates that chronic pediatric hemodialysis can be safely performed in a rural satellite unit.


PEDIATRICS ◽  
1982 ◽  
Vol 70 (5) ◽  
pp. 742-750 ◽  
Author(s):  
Anthony C. Hsu ◽  
Sang Whay Kooh ◽  
Donald Fraser ◽  
William A. Cumming ◽  
Victor L. Fornasier

The incidence, age at onset, and progression of the biochemical, radiographic, and histologic characteristics of renal osteodystrophy were studied in 50 children in whom chronic renal failure had been recently diagnosed. During a ten-year observation period, 19 patients progressed to end-stage renal failure and radiographic signs of renal osteodystrophy developed in 15 of these (79%). Renal osteodystrophy developed in all nine patients whose chronic renal failure was diagnosed before 3 years of age and in six of the ten children with later onset of failure. The mean interval from diagnosis of renal failure to development of osteodystrophy was 1.4 years. Radiographically, growth zone lesions predominated in the younger children, whereas cortical erosions were more prevalent in the older children. Histologic examination, performed in 38 patients, showed both defective mineralization and excessive resorption and was a more sensitive diagnostic index than radiography. Noticeable deformities developed in one third of the patients with osteodystrophy, despite medical treatment including vitamin D2 therapy. Deformities were particularly frequent and Severe in patients whose renal failure developed in infancy. In all 13 patients whose growth patterns were studied before and after osteodystrophy developed, the onset of bone lesions was associated with a deterioration of growth, indicating that osteodystrophy plays a major role in causing the growth retardation commonly observed in children with chronic renal failure.


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