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Role and significance of plasma citrulline in the early phase after small bowel transplantation in pigs
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Transplantation Surgery.
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2007 (English)In: Transplant International, ISSN 0934-0874, E-ISSN 1432-2277, Vol. 20, no 5, 425-431 p.Article in journal (Refereed) Published
Abstract [en]

A reliable serological marker of acute cellular rejection (ACR) after small bowel transplantation (SBTx) is still missing. Plasma citrulline level (PCL) reflects the functional integrity of intestinal mucosa which is partially lost during ACR. The aim of our study was to investigate the role of PCL as marker of ACR after SBTx. Eighteen German landrace pigs were used and divided into three groups. Group 1 (G1), autologous SBTx (n = 4) as control; group 2 (G2), allogeneic SBTx without immunosuppression (IS) (n = 7) and group 3 (G3), allogeneic SBTx with IS (n = 7). IS consisted of tacrolimus and steroids without induction treatment. Observation period was 14 days. Mucosal biopsies were obtained intraoperatively and daily using a Thiry-Vella loop. ACR was differentiated into indeterminate, mild, moderate and severe using a standardized grading schema. PCL was measured daily. An ACR onset occurred generally from postoperative day 4 both in G2 and G3 as mild form and developed differently in the two groups: moderate to severe in G2 and indeterminate to mild in G3. A significant decline of PCL occurred only in cases of moderate and severe ACR, but not in cases of indeterminate and mild ACR. The PCL failed as a marker in the early diagnosis of ACR and became reliable only when advanced mucosal damage was present.

Place, publisher, year, edition, pages
2007. Vol. 20, no 5, 425-431 p.
Keyword [en]
Ischemia reperfusion injury, Marker, Rejection, Small bowel, Transplantation
National Category
Medical and Health Sciences
URN: urn:nbn:se:uu:diva-13959DOI: 10.1111/j.1432-2277.2007.00460.xISI: 000245313700004PubMedID: 17313447OAI: oai:DiVA.org:uu-13959DiVA: diva2:41729
Available from: 2008-01-28 Created: 2008-01-28 Last updated: 2011-02-08Bibliographically approved

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