Evidence map›Paper›PMID 23145497›Full record

ArticleXenotransplantation

Comparison of hematologic, biochemical, and coagulation parameters in α1,3-galactosyltransferase gene-knockout pigs, wild-type pigs, and four primate species.

Burcin Ekser, John Bianchi, Suyapa Ball, Hayato Iwase, Anneke Walters, Mohamed Ezzelarab, Massimiliano Veroux, Bruno Gridelli, Robert Wagner, David Ayares and 1 more

Abstract readComparative Study
In one paragraph

Article in Xenotransplantation. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
3.8field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

31 citing papers in PubMed, 51 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. The Future of Pig Liver Xenotransplantation.Transplant international : official journal of the European Society for Organ Transplantation · 2025
    Review
  6. Article
  7. Article
  8. Article
  9. Review
  10. Review
  11. Xenotransplantation: A New Era.Frontiers in immunology · 2022
    Review
  12. Biochemical and Hematologic Reference Intervals for Anesthetized, Female, Juvenile Yorkshire Swine.Journal of the American Association for Laboratory Animal Science : JAALAS · 2022
    Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Review
  18. Review
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 4 institutions in 2 countries.

Burcin EkserThomas E. Starzl Transplantation Institute, University of Pittsburgh Medical Center, Pittsburgh, PA 15261, USA.
John Bianchi
Suyapa Ball
Hayato Iwase
Anneke Walters
Mohamed Ezzelarab
Massimiliano Veroux
Bruno Gridelli
Robert Wagner
David Ayares
David K C Cooper
University of Pittsburgh Medical Center · USUniversity of Catania · ITIstituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione · ITUniversity of Pittsburgh · US

Funding

XENOGRAFT TOLERANCE THROUGH MIXED CHIMERISMP01AI045897 · NIAID · MASSACHUSETTS GENERAL HOSPITAL · PI Megan Sykes · 2000 to 2026
$71.9M
CORE--BABOON RESEARCH RESOURCE PROGRAMP40RR012317 · NCRR · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI WHITE, GARY L · 1998 to 2011
$13.0M
Interdisciplinary Training in Transplantation BiologyT32AI074490 · NIAID · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI Angus W Thomson · 2007 to 2026
$4.2M
Thromboregulatory strategies to prolong xenograft survival.U01AI066331 · NIAID · BETH ISRAEL DEACONESS MEDICAL CENTER · PI ROBSON, SIMON C. · 2005 to 2009
$4.1M
Thromboregulation to Prevent Thrombotic MicroangiopathyU01AI068642 · NIAID · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI COOPER, DAVID KC · 2005 to 2008
$2.7M
NCRR NIH HHS NIH P40 RR012317NCRR NIH HHS P40 RR012317NIAID NIH HHS P01 AI045897NIAID NIH HHS T32 AI074490NIAID NIH HHS #U01 AI066331NIAID NIH HHS U01 AI066331NIAID NIH HHS #U01 AI068642NIAID NIH HHS U01 AI068642PHS HHS NIH NIAID T32 AI074490
6 · The paper itself

Abstract

backgroundThe increasing availability of genetically engineered pigs is steadily improving the results of pig organ and cell transplantation in non-human primates (NHPs). Current techniques offer knockout of pig genes and/or knockin of human genes. Knowledge of normal values of hematologic, biochemical, coagulation, and other parameters in healthy genetically engineered pigs and NHPs is important, particularly following pig organ transplantation in NHPs. Furthermore, information on parameters in various NHP species may prove important in selecting the optimal NHP model for specific studies.

methodsWe have collected hematologic, biochemical, and coagulation data on 71 α1,3-galactosyltransferase gene-knockout (GTKO) pigs, 18 GTKO pigs additionally transgenic for human CD46 (GTKO.hCD46), four GTKO.hCD46 pigs additionally transgenic for human CD55 (GTKO.hCD46.hCD55), and two GTKO.hCD46 pigs additionally transgenic for human thrombomodulin (GTKO.hCD46.hTBM).

resultsWe report these data and compare them with similar data from wild-type pigs and the three major NHP species commonly used in biomedical research (baboons, cynomolgus, and rhesus monkeys) and humans, largely from previously published reports.

conclusionsGenetic modification of the pig (e.g., deletion of the Gal antigen and/or the addition of a human transgene) (i) does not result in abnormalities in hematologic, biochemical, or coagulation parameters that might impact animal welfare, (ii) seems not to alter metabolic function of vital organs, although this needs to be confirmed after their xenotransplantation, and (iii) possibly (though, by no means certainly) modifies the hematologic, biochemical, and coagulation parameters closer to human values. This study may provide a good reference for those working with genetically engineered pigs in xenotransplantation research and eventually in clinical xenotransplantation.

Indexed as

AnimalsAnimals, Genetically ModifiedBlood CoagulationGalactosyltransferasesGene Knockout TechniquesGenetic EngineeringGraft RejectionHumansPrimatesSwineTransplantation, HeterologousGalactosyltransferases

Identifiers

PMID23145497
PMCPMC3513672
OpenAlexW1558274844

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.