Abstract
A test for detecting acute cellular rejection (ACR) of small intestinal transplants (ITx) would be a major advance. Small preliminary studies suggest that serum citrulline levels correlate with ACR. The results for a group of 26 isolated intestinal and multivisceral transplant recipients are summarized here. Serum citrulline concentrations were determined by ion exchange chromatography and compared to biopsy-based grade of ACR. Other factors considered included patient and donor age and sex, ischemia time, and serum creatinine. Straight-line fits were employed to describe how each patient's citrulline levels changed over time. Estimated times to achieve normal citrulline (≥30 μmol/L) ranged from 1 to 730 days posttransplant for 21 patients demonstrating increasing citrulline levels over time. Using stepwise linear regression, patients' ranks for time required to achieve normal citrulline levels were the only independent predictors of both maximum ACR (P < .0001) and average ACR (P = .0059) after 14 days posttransplant. The rate and direction of change in citrulline over time may be an indicator of the risk of acute rejection. We plan to further examine the use of citrulline as a marker for rejection in larger prospective studies.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 345-347 |
| Number of pages | 3 |
| Journal | Transplantation Proceedings |
| Volume | 36 |
| Issue number | 2 |
| DOIs | |
| State | Published - Mar 2004 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Surgery
- Transplantation
Cite this
Trends in serum citrulline and acute rejection among recipients of small bowel transplants. / Pappas, P. A.; Tzakis, A. G.; Saudubray, J. M.; Gaynor, J. J.; Carreno, M. R.; Huijing, F.; Kleiner, G.; Rabier, D.; Kato, T.; Levi, D. M.; Nishida, S.; Gelman, B.; Thompson, John F.; Mittal, N.; Ruiz, P.
In: Transplantation Proceedings, Vol. 36, No. 2, 03.2004, p. 345-347.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Trends in serum citrulline and acute rejection among recipients of small bowel transplants
AU - Pappas, P. A.
AU - Tzakis, A. G.
AU - Saudubray, J. M.
AU - Gaynor, J. J.
AU - Carreno, M. R.
AU - Huijing, F.
AU - Kleiner, G.
AU - Rabier, D.
AU - Kato, T.
AU - Levi, D. M.
AU - Nishida, S.
AU - Gelman, B.
AU - Thompson, John F.
AU - Mittal, N.
AU - Ruiz, P.
PY - 2004/3
Y1 - 2004/3
N2 - A test for detecting acute cellular rejection (ACR) of small intestinal transplants (ITx) would be a major advance. Small preliminary studies suggest that serum citrulline levels correlate with ACR. The results for a group of 26 isolated intestinal and multivisceral transplant recipients are summarized here. Serum citrulline concentrations were determined by ion exchange chromatography and compared to biopsy-based grade of ACR. Other factors considered included patient and donor age and sex, ischemia time, and serum creatinine. Straight-line fits were employed to describe how each patient's citrulline levels changed over time. Estimated times to achieve normal citrulline (≥30 μmol/L) ranged from 1 to 730 days posttransplant for 21 patients demonstrating increasing citrulline levels over time. Using stepwise linear regression, patients' ranks for time required to achieve normal citrulline levels were the only independent predictors of both maximum ACR (P < .0001) and average ACR (P = .0059) after 14 days posttransplant. The rate and direction of change in citrulline over time may be an indicator of the risk of acute rejection. We plan to further examine the use of citrulline as a marker for rejection in larger prospective studies.
AB - A test for detecting acute cellular rejection (ACR) of small intestinal transplants (ITx) would be a major advance. Small preliminary studies suggest that serum citrulline levels correlate with ACR. The results for a group of 26 isolated intestinal and multivisceral transplant recipients are summarized here. Serum citrulline concentrations were determined by ion exchange chromatography and compared to biopsy-based grade of ACR. Other factors considered included patient and donor age and sex, ischemia time, and serum creatinine. Straight-line fits were employed to describe how each patient's citrulline levels changed over time. Estimated times to achieve normal citrulline (≥30 μmol/L) ranged from 1 to 730 days posttransplant for 21 patients demonstrating increasing citrulline levels over time. Using stepwise linear regression, patients' ranks for time required to achieve normal citrulline levels were the only independent predictors of both maximum ACR (P < .0001) and average ACR (P = .0059) after 14 days posttransplant. The rate and direction of change in citrulline over time may be an indicator of the risk of acute rejection. We plan to further examine the use of citrulline as a marker for rejection in larger prospective studies.
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UR - http://www.scopus.com/inward/citedby.url?scp=12144290729&partnerID=8YFLogxK
U2 - 10.1016/j.transproceed.2003.12.007
DO - 10.1016/j.transproceed.2003.12.007
M3 - Article
C2 - 15050154
AN - SCOPUS:12144290729
VL - 36
SP - 345
EP - 347
JO - Transplantation Proceedings
JF - Transplantation Proceedings
SN - 0041-1345
IS - 2
ER -