Minimal focal steatosis of liver after islet transplantation in humans: A long-term study

Paola Maffi, Enzo Angeli, Federico Bertuzzi, Carlo Paties, Carlo Socci, Carlo Fedeli, Francesca De Taddeo, Rita Nano, Valerio Di Carlo, Alessandro Del Maschio, Antonio Secchi

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

Several reports have been published on islet transplantation in humans, but few data are available on the effect of islet infusion on the hepatic structure. Our aim was to evaluate in a longitudinal study the impact on the liver of intrahepatic islet transplantation. Clinical outcome and liver imaging were evaluated in 31 cases of islet-kidney transplantation (follow-up 38 ± 4 months, range 12-96 months). Patients were divided into three groups: full function (FF, 9 cases: established insulin independence); partial function (PF, 16 cases: transient insulin independence, prolonged C-peptide secretion); no function (NF, 6 cases: exhaustion of C-peptide secretion within the first year). Upper abdomen sonogram was regularly performed during the whole follow-up period. Percutaneous liver biopsy was performed in case of echographic abnormalities. Multiple small areas of focal hyperechogenicity were observed in nine cases after 6-12 months. These findings were observed only in FF (two) and in PF (seven) patients. Fasting C-peptide levels at the time of echography were higher in negative than in positive patients (2.42 ±0.16 vs. 1.51 ± 0.10 ng/ml, p = 0.0001). Liver biopsies showed focal macrovesicular steatosis, surrounded by normal liver parenchyma. Normal liver function was maintained. In conclusion, our results indicate that islet transplantation can lead to structural changes of the liver parenchyma (focal steatosis). It is more often observed in patients with partial function. Sonogram can be considered a specific method to reveal liver changes after islet transplantation.

Original languageEnglish
Pages (from-to)727-733
Number of pages7
JournalCell Transplantation
Volume14
Issue number10
DOIs
Publication statusPublished - 2005

Fingerprint

Islets of Langerhans Transplantation
Fatty Liver
Liver
C-Peptide
Peptides
Biopsy
Insulin
Abdomen
Kidney Transplantation
Longitudinal Studies
Fasting
Ultrasonography
Imaging techniques

Keywords

  • Histology
  • Islet transplantation
  • Sonography
  • Steatosis

ASJC Scopus subject areas

  • Cell Biology
  • Transplantation

Cite this

Minimal focal steatosis of liver after islet transplantation in humans : A long-term study. / Maffi, Paola; Angeli, Enzo; Bertuzzi, Federico; Paties, Carlo; Socci, Carlo; Fedeli, Carlo; De Taddeo, Francesca; Nano, Rita; Di Carlo, Valerio; Del Maschio, Alessandro; Secchi, Antonio.

In: Cell Transplantation, Vol. 14, No. 10, 2005, p. 727-733.

Research output: Contribution to journalArticle

Maffi, Paola ; Angeli, Enzo ; Bertuzzi, Federico ; Paties, Carlo ; Socci, Carlo ; Fedeli, Carlo ; De Taddeo, Francesca ; Nano, Rita ; Di Carlo, Valerio ; Del Maschio, Alessandro ; Secchi, Antonio. / Minimal focal steatosis of liver after islet transplantation in humans : A long-term study. In: Cell Transplantation. 2005 ; Vol. 14, No. 10. pp. 727-733.
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