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Erschienen in: World Journal of Surgery 4/2012

01.04.2012

Hepatocellular Telomere Length in Biliary Atresia Measured by Q-FISH

verfasst von: Yukihiro Sanada, Junko Aida, Youichi Kawano, Ken-ichi Nakamura, Naotaka Shimomura, Naoshi Ishikawa, Tomio Arai, Steven S. S. Poon, Naoya Yamada, Noriki Okada, Taiichi Wakiya, Makoto Hayashida, Takeshi Saito, Satoshi Egami, Shuji Hishikawa, Yoshiyuki Ihara, Taizen Urahashi, Koichi Mizuta, Yoshikazu Yasuda, Hideo Kawarasaki, Kaiyo Takubo

Erschienen in: World Journal of Surgery | Ausgabe 4/2012

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Abstract

Background

Liver transplantation for biliary atresia is indicated whenever a Kasai portoenterostomy is considered unfeasible. However, the timing of liver transplantation in biliary atresia has not been precisely defined. Excessive shortening of hepatocellular telomeres may occur in patients with biliary atresia, and therefore, telomere length could be a predictor of hepatocellular reserve capacity.

Methods

Hepatic tissues were obtained from 20 patients with biliary atresia who underwent LT and 10 age-matched autopsied individuals (mean age, 1.7 and 1.2 years, respectively). Telomere lengths were measured by Southern blotting and quantitative fluorescence in situ hybridization using the normalized telomere-centromere ratio. The correlation between the normalized telomere-centromere ratio for the hepatocytes in biliary atresia and the pediatric end-stage liver disease score was analyzed.

Results

The median terminal restriction fragment length of the hepatic tissues in biliary atresia was not significantly different from that of the control (p = 0.425), whereas the median normalized telomere-centromere ratio of hepatocytes in biliary atresia was significantly smaller than that of the control (p < 0.001). Regression analysis demonstrated a negative correlation of the normalized telomere-centromere ratio with the pediatric end-stage liver disease score in biliary atresia (p < 0.001).

Conclusions

Telomere length analysis using quantitative fluorescence in situ hybridization could be an objective indicator of hepatocellular reserve capacity in patients with biliary atresia, and excessive telomere shortening supports the early implementation of liver transplantation.
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Metadaten
Titel
Hepatocellular Telomere Length in Biliary Atresia Measured by Q-FISH
verfasst von
Yukihiro Sanada
Junko Aida
Youichi Kawano
Ken-ichi Nakamura
Naotaka Shimomura
Naoshi Ishikawa
Tomio Arai
Steven S. S. Poon
Naoya Yamada
Noriki Okada
Taiichi Wakiya
Makoto Hayashida
Takeshi Saito
Satoshi Egami
Shuji Hishikawa
Yoshiyuki Ihara
Taizen Urahashi
Koichi Mizuta
Yoshikazu Yasuda
Hideo Kawarasaki
Kaiyo Takubo
Publikationsdatum
01.04.2012
Verlag
Springer-Verlag
Erschienen in
World Journal of Surgery / Ausgabe 4/2012
Print ISSN: 0364-2313
Elektronische ISSN: 1432-2323
DOI
https://doi.org/10.1007/s00268-012-1453-z

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