Hypothermic storage with University of Wisconsin solution preserves endothelial and vascular smooth-muscle function

Paul Sorajja, David G. Cable, Hartzell V Schaff

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Background: The effect of University of Wisconsin (UW) solution on coronary endothelial function is debated. Although earlier studies demonstrated preservation of stimulated release of endothelial vasoactive factors, the effect of UW solution on basal nitric oxide release has not been investigated, and this was the purpose of the present study. Methods and Results: Isolated canine coronary were evaluated immediately after being harvested (group 1) and after 24-hour hypothermic (4°C) storage in either buffered physiological saline solution (group 2) or UW solution (group 3). Smooth-muscle vascular response to sodium nitroprusside (10-9 to 10-6 mol/L), KCl (5 to 50 mmol/L), and prostaglandin F(2α) (10-9 to 10-6 mol/L) was comparable among the groups, as was the endothelial response to acetylcholine (10-9 to 10-6 mol/L) and calcium ionophore A23187 (10-9 to 10-6 mol/L). Vessels in group 3 exhibited better preservation of basal release of nitric oxide, as measured by contraction to either N(G)-monomethyl L-arginine (10-4 mol/L) or methylene blue (10-5 mol/L), in comparison with control arteries exposed to saline solution (group 2). There was no difference in the basal production of nitric oxide between group 1 and group 3 vessels. Conclusions: The present study demonstrated preservation of vascular smooth muscle and endothelium-dependent relaxations after prolonged hypothermic storage in UW solution. Furthermore, storage in this solution preserved basal release of nitric oxide.

Original languageEnglish (US)
JournalCirculation
Volume96
Issue number9 SUPPL.
StatePublished - Nov 4 1997

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Vascular Smooth Muscle
Nitric Oxide
Sodium Chloride
Calcium Ionophores
Methylene Blue
Calcimycin
Prostaglandins F
Nitroprusside
Acetylcholine
Endothelium
Arginine
Canidae
Arteries

Keywords

  • Coronary artery
  • Endothelium
  • Nitric oxide
  • Transplantation

ASJC Scopus subject areas

  • Physiology
  • Cardiology and Cardiovascular Medicine

Cite this

Hypothermic storage with University of Wisconsin solution preserves endothelial and vascular smooth-muscle function. / Sorajja, Paul; Cable, David G.; Schaff, Hartzell V.

In: Circulation, Vol. 96, No. 9 SUPPL., 04.11.1997.

Research output: Contribution to journalArticle

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N2 - Background: The effect of University of Wisconsin (UW) solution on coronary endothelial function is debated. Although earlier studies demonstrated preservation of stimulated release of endothelial vasoactive factors, the effect of UW solution on basal nitric oxide release has not been investigated, and this was the purpose of the present study. Methods and Results: Isolated canine coronary were evaluated immediately after being harvested (group 1) and after 24-hour hypothermic (4°C) storage in either buffered physiological saline solution (group 2) or UW solution (group 3). Smooth-muscle vascular response to sodium nitroprusside (10-9 to 10-6 mol/L), KCl (5 to 50 mmol/L), and prostaglandin F(2α) (10-9 to 10-6 mol/L) was comparable among the groups, as was the endothelial response to acetylcholine (10-9 to 10-6 mol/L) and calcium ionophore A23187 (10-9 to 10-6 mol/L). Vessels in group 3 exhibited better preservation of basal release of nitric oxide, as measured by contraction to either N(G)-monomethyl L-arginine (10-4 mol/L) or methylene blue (10-5 mol/L), in comparison with control arteries exposed to saline solution (group 2). There was no difference in the basal production of nitric oxide between group 1 and group 3 vessels. Conclusions: The present study demonstrated preservation of vascular smooth muscle and endothelium-dependent relaxations after prolonged hypothermic storage in UW solution. Furthermore, storage in this solution preserved basal release of nitric oxide.

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