Abstract:
:Because inhaled carbon monoxide (CO) provides potent anti-inflammatory and antioxidant effects against ischemia reperfusion injury, we hypothesized that treatment of organ donors with inhaled CO would decrease graft injury after heart transplantation. Hearts were heterotopically transplanted into syngeneic Lewis rats after 8 hours of cold preservation in University of Wisconsin solution. Donor rats were exposed to CO at a concentration of 250 parts per million for 24 hours via a gas-exposure chamber. Severity of myocardial injury was determined by total serum creatine phosphokinase and troponin I levels at three hours after reperfusion. In addition, Affymetrix gene array analysis of mRNA transcripts was performed on the heart graft tissue prior to implantation. Recipients of grafts from CO-exposed donors had lower levels of serum troponin I and creatine phosphokinase; less upregulation of mRNA for interleukin-6, intercellular adhesion molecule-1, and tumor necrosis factor-α; and fewer infiltrating cells. Although donor pretreatment with CO altered the expression of 49 genes expressly represented on the array, we could not obtain meaningful data to explain the mechanisms by which CO potentiated the protective effects. Pretreatment with CO gas before organ procurement effectively protected cardiac grafts from ischemia reperfusion-induced injury in a rat heterotopic cardiac transplant model. A clinical report review indicated that CO-poisoned organ donors may be comparable to non-poisoned donors.
journal_name
Med Gas Resjournal_title
Medical gas researchauthors
Fujisaki N,Kohama K,Nishimura T,Yamashita H,Ishikawa M,Kanematsu A,Yamada T,Lee S,Yumoto T,Tsukahara K,Kotani J,Nakao Adoi
10.4103/2045-9912.191357keywords:
["carbon monoxide","cardiac transplantation","cold preservation","donor","gene array","ischemia\/reperfusion","pretreatment"]subject
Has Abstractpub_date
2016-10-14 00:00:00pages
122-129issue
3issn
2045-9912pii
MGR-6-122journal_volume
6pub_type
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