Abstract
Using pentobarbital cats, the authors tested whether administration of the nitrogen oxide (NO) synthase inhibitor, L-nitro-L-arginine methyl ester (L-NAME), produced peripheral vasoconstriction after isovolemic exchange transfusion with hemoglobin (n = 8) to the same extent as occurs with L-NAME infusion in time controls (n = 8), and in controls matched for reduced hematocrit (17%) with albumin transfusion (n = 8). Hemoglobin exchange transfusion resulted in an increase in mean arterial pressure and there was no further increase after L-NAME. The lack of intestinal and renal vasoconstriction to L-NAME after hemoglobin transfusion is best explained by hemoglobin scavenging of NO prior to NO synthase inhibition.
Original language | English (US) |
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Pages (from-to) | A173 |
Journal | Artificial Cells, Blood Substitutes, and Immobilization Biotechnology |
Volume | 22 |
Issue number | 5 |
State | Published - Nov 1 1994 |
Event | Proceedings of the 11th Congress of the International Society for Artificial Cells, Blood Substitutes and Immobilization Biotechnology, (ISABI) - Boston, MA, USA Duration: Jul 24 1994 → Jul 27 1994 |
ASJC Scopus subject areas
- Biotechnology
- Biomedical Engineering