title: Effectiveness of coagulation factor XIII concentrate for reversing loss of tensile strength of rat intestinal anastomoses.
abstract: BACKGROUND
  Blood coagulation factor XIII (F-XIII) promotes cross-linking of fibrin during blood coagulation. Impaired clot stabilization in patients with genetic deficiencies of F-XIII is associated with marked pathologies of wound healing.
  
  
  METHODS
  60 rats given carbon tetrachloride underwent ileal anastomosis after which they received albumin (Alb animals) or F-XIII concentrate (F-XIII animals) immediately after surgery and daily thereafter until day 2 or 4 and were euthanized on day 3 or 5, respectively, or until day 5 and were euthanized on day 7, 10, or 21. We measured the plasma F-XIII activity and anastomotic tensile strength, followed by immunohistochemical localization of F-XIII subunit A within anastomoses.
  
  
  RESULTS
  On day 3, there were no significant differences between Alb and F-XIII animals for plasma F-XIII activity and tensile strength, and both groups of animals showed little immunostaining for F-XIII on anastomoses. Plasma F-XIII activities did not differ between Alb and F-XIII animals on day 5 (115.8 +/- 16.8 vs. 137.3 +/- 14.9%). Although the tensile strength in both groups was increased compared with that of day 3, that in F-XIII animals (129.8 +/- 3.3 gf) was significantly higher than that in Alb animals (100.8 +/- 5.3 gf, p = 0.014). F-XIII animals showed de novo collagen fibers and intense immunoreactivity of F-XIII in the extracellular matrix around the anastomoses. Similar differences occurred on day 7 but not days 10 and 21.
  
  
  CONCLUSIONS
  F-XIII concentrate may accelerate the early healing process of intestinal anastomosis because of the protein's accumulation in situ.
authors.affiliation: Department of Surgery, Shiga University of Medical Science, Otsu City, Shiga, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Hasegawa
authors.forename: Y
authors.initials: Y
authors.lastname: Eguchi
authors.forename: K
authors.initials: K
authors.lastname: Endoh
authors.forename: T
authors.initials: T
authors.lastname: Yoshida
authors.forename: H
authors.initials: H
authors.lastname: Okabe
authors.forename: T
authors.initials: T
authors.lastname: Tani
mesh_terms: D000714:Anastomosis, Surgical; D000818:Animals; D005176:Factor XIII / Q000378:metabolism / Q000494:pharmacology*; D007082:Ileum / Q000187:drug effects* / Q000473:pathology / Q000503:physiopathology / Q000601:surgery*; D008297:Male; D051381:Rats; D017207:Rats, Sprague-Dawley; D013718:Tensile Strength / Q000187:drug effects; D014945:Wound Healing / Q000187:drug effects
chemical_list: D005176:Factor XIII