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Research Article Free access | 10.1172/JCI119213

Metabolic effects of liver transplantation in cirrhotic patients.

L Luzi, G Perseghin, E Regalia, L P Sereni, A Battezzati, D Baratti, E Bianchi, I Terruzzi, H Hilden, L C Groop, A Pulvirenti, M R Taskinen, L Gennari, and V Mazzaferro

Division of Endocrinology-Hypertension, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA. luzi@rsisi.hsr.it

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Division of Endocrinology-Hypertension, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA. luzi@rsisi.hsr.it

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Division of Endocrinology-Hypertension, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA. luzi@rsisi.hsr.it

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Division of Endocrinology-Hypertension, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA. luzi@rsisi.hsr.it

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Division of Endocrinology-Hypertension, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA. luzi@rsisi.hsr.it

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Division of Endocrinology-Hypertension, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA. luzi@rsisi.hsr.it

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Division of Endocrinology-Hypertension, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA. luzi@rsisi.hsr.it

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Division of Endocrinology-Hypertension, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA. luzi@rsisi.hsr.it

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Division of Endocrinology-Hypertension, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA. luzi@rsisi.hsr.it

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Division of Endocrinology-Hypertension, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA. luzi@rsisi.hsr.it

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Division of Endocrinology-Hypertension, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA. luzi@rsisi.hsr.it

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Division of Endocrinology-Hypertension, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA. luzi@rsisi.hsr.it

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Division of Endocrinology-Hypertension, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA. luzi@rsisi.hsr.it

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Published February 15, 1997 - More info

Published in Volume 99, Issue 4 on February 15, 1997
J Clin Invest. 1997;99(4):692–700. https://doi.org/10.1172/JCI119213.
© 1997 The American Society for Clinical Investigation
Published February 15, 1997 - Version history
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Abstract

To assess whether liver transplantation (LTx) can correct the metabolic alterations of chronic liver disease, 14 patients (LTx-5) were studied 5+/-1 mo after LTx, 9 patients (LTx-13) 13+/-1 mo after LTx, and 10 patients (LTx-26) 26+/-2 months after LTx. Subjects with chronic uveitis (CU) and healthy volunteers (CON) were also studied. Basal plasma leucine and branched-chain amino acids were reduced in LTx-5, LTx-13, and LTx-26 when compared with CU and CON (P < 0.01). The basal free fatty acids (FFA) were reduced in LTx-26 with respect to CON (P < 0.01). To assess protein metabolism, LTx-5, LTx-13, and LTx-26 were studied with the [1-14C]leucine turnover combined with a 40-mU/m2 per min insulin clamp. To relate changes in FFA metabolism to glucose metabolism, eight LTx-26 were studied with the [1-14C]palmitate and [3-3H]glucose turnovers combined with a two-step (8 and 40 mU/m2 per min) euglycemic insulin clamp. In the postabsorptive state, LTx-5 had lower endogenous leucine flux (ELF) (P < 0.005), lower leucine oxidation (LO) (P < 0.004), and lower non-oxidative leucine disposal (NOLD) (P < 0.03) with respect to CON (primary pool model). At 2 yr (LTx-26) both ELF (P < 0.001 vs. LTx-5) and NOLD (P < 0.01 vs. LTx-5) were normalized, but not LO (P < 0.001 vs. CON) (primary and reciprocal pool models). Suppression of ELF by insulin (delta-reduction) was impaired in LTx-5 and LTx-13 when compared with CU and CON (P < 0.01), but normalized in LTx-26 (P < 0.004 vs. LTx-5 and P = 0.3 vs. CON). The basal FFA turnover rate was decreased in LTx-26 (P < 0.01) and CU (P < 0.02) vs. CON. LTx-26 showed a lower FFA oxidation rate than CON (P < 0.02). Tissue glucose disposal was impaired in LTx-5 (P < 0.005) and LTx-13 (P < 0.03), but not in LTx-26 when compared to CON. LTx-26 had normal basal and insulin-modulated endogenous glucose production. In conclusion, LTx have impaired insulin-stimulated glucose, FFA, and protein metabolism 5 mo after surgery. Follow-up at 26 mo results in (a) normalization of insulin-dependent glucose metabolism, most likely related to the reduction of prednisone dose, and, (b) maintenance of some alterations in leucine and FFA metabolism, probably related to the functional denervation of the graft and to the immunosuppressive treatment.

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