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Impact of Donor Age on the Growth of Young Recipient Rats After Liver Transplantation

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Abstract

Purpose

We studied the age-related changes in graft livers, and their impact on post-transplantation liver function and the growth of young recipient rats.

Methods

Rats aged 11–68 weeks old were studied as controls to assess liver histology, liver function, and body weight. We performed orthotopic liver transplantation using Kamada's cuff technique without arterial reconstruction. Young rats aged 11 weeks were randomized to receive livers from either 11-week-old donors (YD group) or 52-week-old donors (OD group). Recipient rats were killed 0, 8, or 16 weeks after surgery and we assessed the same variables as in the controls.

Results

We confirmed an age-related increase in the average size of hepatocytes and their nuclei. These age-related changes persisted and progressed in the graft liver after transplantation. There were no significant differences in the levels of serum transaminases or total bilirubin between the YD and OD groups, but the serum albumin level was significantly lower in the OD group. The YD group grew normally, whereas the OD group recipients lagged significantly in gaining body weight.

Conclusion

We found that 52-week-old grafts transplanted into 11-week-old recipients resulted in deficient growth and a decline in serum albumin, suggesting that grafted old livers fail to produce enough protein to meet the demands of growth adequately.

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Authors and Affiliations

  1. Department of Surgery, Kyoritsu Hospital, Kawanishi, Japan

    Motohiro Koh

  2. Department of Surgery, Amagasaki Central Hospital, Amagasaki, Japan

    Eizo Okamoto

  3. First Department of Surgery, Hyogo College of Medicine, Nishinomiya, Hyogo, 663-8501, Japan

    Junichi Yamanaka & Jiro Fujimoto

Authors
  1. Motohiro Koh
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  2. Eizo Okamoto
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  3. Junichi Yamanaka
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  4. Jiro Fujimoto
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Koh, M., Okamoto, E., Yamanaka, J. et al. Impact of Donor Age on the Growth of Young Recipient Rats After Liver Transplantation. Surg Today 36, 457–464 (2006). https://doi.org/10.1007/s00595-005-3183-4

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  • DOI: https://doi.org/10.1007/s00595-005-3183-4

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