Başkent Üniversitesi Yayınları

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Author: search.filters.author.Cointault, OlivierSubject: search.filters.subject.Mycophenolate mofetil

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    Renal Function and Histology in Kidney Transplant Patients Receiving Tacrolimus and Sirolimus or Mycophenolate Mofetil
    (Başkent Üniversitesi, 2006-12) Kamar, Nassim; Van, Tuan Tran; Ribes, David; Modesto, Anne; Cointault, Olivier; Lavayssière, Laurence; Ader, Jean Louis; Durand, Dominique; Rostaing, Lionel
    Objective: The aim of this study was to assess the effects of tacrolimus in combination with either sirolimus (n = 10) or mycophenolate mofetil (n = 7) on renal function and renal histopathologic factors 6 and 12 months after kidney transplantation. Materials and Methods: Renal function was assessed by the glomerular filtration rate (as measured by the inulin clearance rate) and by determining renal functional reserve. A renal allograft biopsy was performed at the time of transplantation and 6 and 12 months later. Results: Serum creatinine levels tended to be higher in the sirolimus group 12 months after transplantation. In contrast, inulin clearance and renal functional reserve were similar in both groups 6 and 12 months after transplantation. With respect to histopathologic findings, only mononuclear-cell interstitial inflammation was significantly higher in the sirolimus group than in the mycophenolate mofetil group 12 months after transplantation. However, the progression of tubular atrophy, interstitial fibrosis, and vascular fibrous intimal thickening within the first postoperative year was significantly greater in the sirolimus group. Conclusions: In the long term, the addition of sirolimus to treatment with tacrolimus in de novo renal transplant patients might more adversely affect renal allograft survival than might the addition of mycophenolate mofetil to tacrolimus therapy.
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    Impact of Mycophenolic Acid Dose Modifications on Renal Function After Kidney Transplantation
    (Başkent Üniversitesi, 2006-12) Kamar, Nassim; Oufroukhi, Loubna; Sallusto, Federico; Cointault, Olivier; Lavayssière, Laurence; Mouzin, Marc; Guitard, Joelle; Durand, Dominique; Rostaing, Lionel
    Objective: Mycophenolic acid dose modifications after renal transplantation seem to adversely affect renal allograft outcome. The aim of this retrospective study was to examine the effect of mycophenolic acid dose modifications on renal function 1 year after transplantation and to determine the factors predictive of those dose modifications within the first year after renal transplantation. Patients and Methods: All 130 patients at our institution who were treated de novo between January 2002 and April 2003 with either a mycophenolate mofetil-based or an enteric-coated mycophenolate sodium-based therapy and who had a functioning renal allograft 1 month after transplantation were included in this study. Results: Fifty-seven patients (43.8%) underwent a dose modification during the first year after transplantation. One, 3, 6, and 12 months after transplantation, renal function was significantly improved in the patients who did not receive a dose modification. A mycophenolic acid dose that 1 year after transplantation was less than the initial dose received just after transplantation was an independent factor associated with deteriorating renal function. Sirolimus immunosuppression, Cytomegalovirus infection, and pretransplant lymphocyte counts were independent factors associated with mycophenolic acid dose modifications within the first year after kidney transplantation. Conclusions: Modification of the mycophenolic acid dose may adversely affect renal function 1 year after transplantation.