Add time:08/29/2019         Source:sciencedirect.com

We evaluated the ability of gentisic acid, an antioxidant, to stabilize Stannous pyrophosphate (cas 15578-26-4) (Sn:PPi) kits and extend the shelf-life of the kit after reconstitution. In vitro studies showed that gentisic acid (0.5 mg/mL) stabilized the stannous ion against oxidation by various levels of exogenous hydrogen peroxide. In patients who received stabilized Sn:PPi for in vivo red blood cell labelling, the left ventricle-to-background activity ratio was significantly higher than that in patients who received a standard formulation of Sn:PPi. Gentisic acid is now used routinely in the Sn:PPi kit formulation in this institution.

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