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Effect of plasma fibronectin on the incisional wound healing in rats.

AbstractBACKGROUND:
Abdominal wall repair after celiotomy is important because insufficient incisional wound strength results in wound failures such as fascial dehiscence and herniation. Plasma fibronectin (pFn) has been shown to play an important role in wound healing. The purpose of this study was to investigate whether pFn improves incisional wound healing in a rat skin incision and celiotomy model.
METHODS:
Rats underwent a linear skin incision in the dorsal plane or a full-thickness incisional wound (celiotomy) in the abdominal wall. The same operative procedures were performed on rats whose pFn levels were reduced by antirat pFn serum. The wounds were sutured, and purified human pFn or albumin was given intravenously.
RESULTS:
After the celiotomy, pFn levels decreased immediately and reached a minimum at 3 h after incision. A single injection of pFn (10 mg/kg) significantly increased the breaking strength of the skin and the bursting pressure of the abdominal wall. The amount of hydroxyproline in the skin incisional wound with pFn was significantly greater than with an injection of albumin as control. In rats with pFn levels decreased by antirat pFn serum, a single administration of pFn significantly increased the breaking strength of the skin and the bursting pressure of the abdominal wall compared to a control injection of albumin.
CONCLUSIONS:
It is important for wound healing to maintain sufficiently high levels of pFn. A single intravenous injection of pFn after celiotomy may be useful in the prevention of fascial dehiscence and herniation.
AuthorsA-Hon Kwon, Zeyu Qiu, Yutaka Hiraon
JournalSurgery (Surgery) Vol. 141 Issue 2 Pg. 254-61 (Feb 2007) ISSN: 0039-6060 [Print] United States
PMID17263983 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
Chemical References
  • Antibodies
  • Fibronectins
  • Iodine Radioisotopes
  • Hydroxyproline
Topics
  • Abdominal Wall (pathology)
  • Animals
  • Antibodies
  • Female
  • Fibronectins (administration & dosage, blood, immunology)
  • Hydroxyproline (metabolism)
  • Iodine Radioisotopes
  • Peritoneum (injuries)
  • Rabbits
  • Rats
  • Rats, Wistar
  • Skin (metabolism)
  • Tensile Strength
  • Wound Healing (physiology)

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