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Hu, H. et al.

Hu, Aizenstein, Puchalski, Burmania, Hamawy, Knechtle,

Elevation of CXCR3-binding chemokines in urine indicates acute renal-allograft dysfunction.

A noninvasive urinary test that diagnoses acute renal allograft dysfunction would benefit renal transplant patients. We aimed to develop a rapid urinary diagnostic test by detecting chemokines. Seventy-three patients with renal allograft dysfunction prompting biopsy and 26 patients with stable graft function were recruited. Urinary levels of CXCR3-binding chemokines, monokine induced by IFN-gamma (Mig/CXCL9), IFN-gamma-induced protein of 10 kDa ( IP-10/CXCL10), and IFN-inducible T-cell chemoattractant (I-TAC/CXCL11), were determined by a particle-based triplex assay. IP-10, Mig and I-TAC were significantly elevated in renal graft recipients with acute rejection, acute tubular injury and BK virus nephritis. Using 100 pg/mL as the threshold level, both IP-10 and Mig had diagnostic value (sensitivity 86.4%; specificity 91.3%) in differentiating acute graft dysfunction from other clinical conditions. In terms of monitoring the response to antirejection therapy, this urinary test is more sensitive and predictive than serum creatinine. These results indicate that this rapid test is clinically useful.[1]

References

Elevation of CXCR3-binding chemokines in urine indicates acute renal-allograft dysfunction. Hu, H., Aizenstein, B.D., Puchalski, A., Burmania, J.A., Hamawy, M.M., Knechtle, S.J. American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons. (2004) [Pubmed]

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