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Fixed Volume or Fixed Pressure: A Murine Model of Hemorrhagic Shock
Published on: June 6, 2011
Trans-sodium crocetinate and hemorrhagic shock.
Amanda K Stennett1, Robert J Murray, James W Roy
1Fresenius Medical Care, Lexington, Massachusetts, USA.
Shock (Augusta, Ga.)
|June 5, 2007
Summary
Trans-sodium crocetinate (TSC) effectively treats hemorrhagic shock by improving blood pressure and reducing organ damage. While TSC scavenges free radicals, this is likely not its primary mechanism during shock.
Area of Science:
- Biomedical science
- Pharmacology
- Emergency medicine
Background:
- Hemorrhagic shock poses significant mortality risks.
- Trans-sodium crocetinate (TSC) has shown promise in treating hemorrhagic shock.
- Proposed mechanisms for TSC include increased oxygen diffusion and free radical scavenging.
Purpose of the Study:
- To investigate the free radical scavenging activity of TSC.
- To determine if free radical scavenging is the primary mechanism of TSC in hemorrhagic shock.
- To present pharmacokinetic data for alternative administration routes of TSC.
Main Methods:
- In vitro assessment of TSC's radical scavenging efficiency.
- Evaluation of TSC's effects on oxygen consumption in hemorrhaged rats.
- Administration of TSC via tracheal instillation and intramuscular injection in rats.
Main Results:
- Trans-sodium crocetinate (TSC) demonstrates free radical scavenging capabilities, potentially exceeding those of other scavengers.
- The concentrations of TSC required for radical scavenging are higher than those effective in treating hemorrhagic shock.
- Trolox, a known radical scavenger, did not impact oxygen consumption during shock, suggesting radical scavenging is not the primary mechanism for TSC's efficacy in shock.
Conclusions:
- Trans-sodium crocetinate (TSC) is a promising therapeutic agent for hemorrhagic shock.
- The primary mechanism of TSC in hemorrhagic shock is likely related to enhanced oxygen diffusion rather than free radical scavenging.
- Tracheal instillation and intramuscular injection represent viable alternative administration routes for TSC.
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