The Significance of Preserving the Energy Status and Microcirculation in Liver Grafts From Non-Heart-Beating Donor
Authors: Miyagi, Shigehito; Iwane, Takeru; Akamatsu, Yorihiro; Nakamura, Atsushi; Sato, Akira; Satomi, Susumu
Source: Cell Transplantation, Volume 17, Numbers 1-2, January 2008 , pp. 173-178(6)
Publisher: Cognizant Communication Corporation
Abstract:To complete a successful liver transplantation (LTx) from non-heart-beating donors (NHBD), it is necessary to both improve the energy status in liver grafts and to reduce the exposure to free radicals. This study investigated the effects of short perfusion with oxygenated buffer on the grafts prior to cold preservation. In addition, the effects of the antioxidant, biliverdin, for reduction of free radicals was investigated. Male Wistar rats were used. Livers were retrieved, preserved in UW solution, and perfused for 60 min with oxygenated Krebs-Henseleit solution. Rats were allocated to six groups as follows (n = 5): i) control group—no warm ischemia (WI) and cold preservation, ii) HBD group—no WI with cold preservation for 6 h; iii) NHBD group—with 30 min of WI and cold preservation, iv) NM group—with WI including nafamostat mesilate infusion before cardiac arrest and cold preservation; v) PRE group—with WI, 30-min pre-cold preservation perfusion with oxygenated buffer after cardiac arrest, and cold preservation, vi) BV group—with the same treatment as the PRE group plus the addition of biliverdin to the pre-cold preservation perfusion. The portal flow volume, bile production, AST, and TNF-α in perfusate, energy charge (EC), and ATP level in the tissue, and histological findings were investigated. The portal flow volume in the NM, PRE, and BV groups were higher than in the NHBD group. The bile production in the PRE and BV groups were also higher than in the NHBD group. The EC and ATP level of the BV group after reperfusion were higher than those of the NHBD group. Pre-cold preservation perfusion and addition of biliverdin to perfusate improved viability of grafts from NHBD. The results indicate that the preservation of the energy status and microcirculation of the graft is important for successful LTx from NHBD.
Document Type: Research Article
Affiliations: Division of Advanced Surgical Science and Technology, Tohoku University Graduate School of Medicine, Sendai 980-8574, Japan
Publication date: January 1, 2008
- Cell Transplantation publishes original, peer-reviewed research and review articles on the subject of cell transplantation and its application to human diseases. To ensure high-quality contributions from all areas of transplantation, separate section editors and editorial boards have been established. Articles deal with a wide range of topics including physiological, medical, preclinical, tissue engineering, and device-oriented aspects of transplantation of nervous system, endocrine, growth factor-secreting, bone marrow, epithelial, endothelial, and genetically engineered cells, among others. Basic clinical studies and immunological research papers are also featured. To provide complete coverage of this revolutionary field, Cell Transplantation will report on relevant technological advances, and ethical and regulatory considerations of cell transplants. Cell Transplantation is now an Open Access journal starting with volume 18 in 2009, and therefore there will be an inexpensive publication charge, which is dependent on the number of pages, in addition to the charge for color figures. This will allow work to be disseminated to a wider audience and also entitle the corresponding author to a free PDF, as well as prepublication of an unedited version of the manuscript.