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1.
Clin Nephrol ; 53(4): suppl 3-5, 2000 Apr.
Article in English | MEDLINE | ID: mdl-10809425

ABSTRACT

BACKGROUND: Uremic patients on regular dialysis treatment (RDT) obtain and maintain with difficulty an adequate nutritional status. Successful kidney transplantation allows remarkable rehabilitation of patients with end-stage renal disease previously on RDT. However, information concerning the role of dietary protein restriction in the treatment of patients with chronic transplant rejection is scarce. PATIENTS AND METHODS: The role of dietary protein restriction in the treatment of patients with chronic transplant rejection was studied over 10 years in 42 patients with a kidney transplant to examine longterm renal and nutritional responses to dietary protein on graft renal function. In these patients, renal function was checked monthly, clinical evaluation and anthropometric measurements studied, nutritional status and all patients' diets were recorded. RESULTS: In 18 of these patients, biochemical signs of renal failure were found. A diet with 35 Kcal/kg and 0.7 - 0.8 grams of protein/Kg was instituted. Renal function studied every six months for 10 years showed improvement or stabilization. The low protein diet was associated with a significant reduction in 24-hour urinary protein excretion, without any change in blood pressure. Protein restriction was not associated with changes in serum protein. CONCLUSIONS: Our long-term study suggests that moderate protein intake may improve the course of chronic rejection and that restriction in protein intake may be a useful strategy in slowing the progression of renal disease in chronic rejection.


Subject(s)
Diet, Protein-Restricted , Kidney Transplantation , Nutritional Status , Humans
2.
Nephron ; 60(3): 314-8, 1992.
Article in English | MEDLINE | ID: mdl-1348846

ABSTRACT

The clinical usefulness of serial assays of urinary N-acetyl-beta-D- glucosaminidase (NAG), gamma-glutamyltransferase (GGT) and beta 2-microglobulin (beta 2M) were tested to evaluate and follow up the nephrotoxicity resulting from the prolonged administration of ciclosporin (CS). Three groups of patients were studied for 18 months: group A: functioning renal transplant patients (n = 13) on maintenance therapy from 12-31 months with CS and prednisone; group B: functioning renal transplant patients (n = 11) treated with prednisone and azathioprine; group C: patients (n = 10) affected by autoimmune steroid-unsensitive uveitis, free from previous renal disorder and treated with CS (for 8-16 months) at progressively decreasing doses. In groups A and B, the urinary enzymes and beta 2M underwent overlapping increases, so that these parameters cannot be considered reliable indices of CS-induced nephrotoxicity. This is due to the fact that transplanted kidneys are already altered by concomitant or preexisting affections, or by persistent immunologic injury. Conversely, in patients with uveitis, the serial assays of such urinary parameters prove to be quite reliable to evidence clinically yet unrecognizable kidney involvement due to prolonged CS administration. High enzymuria has been shown to be an earlier marker of nephrotoxicity only in nephropathy-free patients; on the other hand, the regression of elevated beta 2Muria into normal ranges indicates complete tubule cell recovery.


Subject(s)
Acetylglucosaminidase/urine , Cyclosporine/adverse effects , Kidney Transplantation/physiology , Kidney/pathology , Proteinuria , Uveitis/drug therapy , beta 2-Microglobulin/urine , gamma-Glutamyltransferase/urine , Adolescent , Adult , Biomarkers/urine , Cyclosporine/therapeutic use , Female , Humans , Kidney/drug effects , Kidney Function Tests , Kidney Transplantation/immunology , Kidney Transplantation/pathology , Male , Middle Aged , Reference Values
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