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alpha-lipoic acid reduces postreperfusion syndrome in human liver transplantation - a pilot study

Abstract : A double-blind randomized controlled trial was performed to compare the safety and efficacy of alpha-lipoic acid (ALA) in liver transplantation (LT). The grafts were randomized to receive ALA or placebo before the cold ischemia time. Furthermore, patients transplanted with the ALA-perfused graft received 600 mg of intravenous ALA, while patients with the nonperfused graft received the placebo just before graft reperfusion. Hepatic biopsy was performed 2 h postreperfusion. Blood samples were collected before, during and 1 and 2 days after reperfusion. Quantitative polymerase chain reaction (qPCR) analysis was performed on biopsies to assess genes involved in the response to hypoxia, apoptosis, cell growth, survival and proliferation, cytokine production and tissue damage protection. Nine of 40 patients developed postreperfusion syndrome (PRS), but seven of them belonged to the control group. There was a decrease in PHD2 and an increase in alpha subunit of hypoxia-inducible factor-1 (HIF-1 alpha) and baculoviral IAP repeat containing 2 (Birc2) transcript levels in the biopsies from the ALA-treated versus the control group of patients. Additionally, plasma levels of alarmins were lower in ALA-treated patients than control patients, which suggests that ALA-treated grafts are less inflammatory than untreated grafts. These results showed that ALA is safe for use in LT, induces gene changes that protect against hypoxia and oxidative stress and reduces the appearance of PRS.
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Contributor : Ghislain Bidaut Connect in order to contact the contributor
Submitted on : Wednesday, May 29, 2019 - 2:50:58 PM
Last modification on : Friday, August 26, 2022 - 3:06:23 PM

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Paola Casciato, Nella Ambrosi, Fiorella Caro, Monica Vazquez, Eduardo Mullen, et al.. alpha-lipoic acid reduces postreperfusion syndrome in human liver transplantation - a pilot study. Transplant International, 2018, 31 (12), pp.1357-1368. ⟨10.1111/tri.13314⟩. ⟨hal-02143623⟩



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