AI Article Synopsis
- Myo-Inositol tris pyrophosphate (ITPP) enhances oxygen release in red blood cells and can cross their membranes, unlike a similar compound (IHP).
- Systemic administration of ITPP improved exercise capacity in mice, raising concerns about its potential use in enhancing horse racing performance.
- A study on a Standardbred mare found ITPP detectable in plasma for up to 6 hours and in urine for up to 24 hours after intravenous administration.
Article Abstract
Myo-Inositol tris pyrophosphate (ITPP) is a powerful allosteric modulator of haemoglobin that increases oxygen-releasing capacity of red blood cells. It is capable of crossing the red blood cell membrane unlike its open polyphosphate analog myo-inositol hexakisphosphate (IHP). Systemic administration of ITPP enhanced the exercise capacity in mice. There have been rumours of its abuse in the horse racing industry to enhance the performance of racing horses. In this paper, the detection of ITPP in equine plasma and urine after an administration of ITPP is reported. A Standardbred mare was administered 200 mg of ITPP intravenously. Urine and plasma samples were collected up to 120 h post administration and analyzed for ITPP by liquid chromatography-tandem mass spectrometry. ITPP was detected in post administration plasma samples up to 6 hours. The peak concentration was detected at 5 min post administration. In urine, ITPP was detected up to 24 h post administration. The peak concentration was detected at 1.5 h post administration.
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| http://dx.doi.org/10.1002/dta.1473 | DOI Listing |
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