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Mouse Kidney Transplantation: Models of Allograft Rejection
Published on: October 11, 2014
Potential differences in kidney allograft outcomes between ethnicities when converting to sirolimus base
N Patel1, D J Taber, N A Weimert
1Department of Pharmacy, Medical University of South Carolina, Charleston, South Carolina, USA.
Transplantation Proceedings
|December 17, 2009
Summary
Ethnicity impacts kidney transplant outcomes after sirolimus conversion. African-Americans may benefit from calcineurin inhibitors (CI), while non-African-Americans show better graft outcomes with mycophenolate mofetil (MMF).
Area of Science:
- Nephrology
- Transplantation immunology
- Immunosuppression therapy
Background:
- Kidney transplant recipients often require immunosuppressive therapy to prevent rejection.
- Sirolimus (SRL) is an effective immunosuppressant, but its optimal combination with other agents requires investigation.
- Patient ethnicity may influence the efficacy and safety of different immunosuppression regimens.
Purpose of the Study:
- To investigate the impact of ethnicity on kidney transplant graft outcomes.
- To compare outcomes in patients converted to sirolimus (SRL) and maintained on either calcineurin inhibitors (CI) or mycophenolate mofetil (MMF) with steroids.
- To determine if ethnic background modifies the effect of SRL-based immunosuppression.
Main Methods:
- Retrospective analysis of 242 kidney transplant patients converted to SRL between 1991 and 2007.
- Patients categorized into four groups based on ethnicity (African-American vs. non-African-American) and concomitant immunosuppression (SRL + CI vs. SRL + MMF).
- Graft outcomes, including acute rejection rates and proteinuria, were compared across the four groups.
Main Results:
- No significant differences in acute rejection rates post-conversion or proteinuria development were observed between groups.
- African-American patients converted to SRL + MMF showed a trend towards poorer graft outcomes compared to those on SRL + CI.
- Non-African-American patients converted to SRL + MMF demonstrated a trend towards better graft outcomes compared to those on SRL + CI.
Conclusions:
- Sirolimus conversion in kidney transplant recipients may have differential effects based on ethnicity and concomitant immunosuppression.
- African-American patients might benefit from continued calcineurin inhibitors (CI) alongside sirolimus (SRL).
- Non-African-American patients may achieve better graft outcomes with mycophenolate mofetil (MMF) in combination with sirolimus (SRL).
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