Production of 8-epi prostaglandin F2 in human platelets during administration of organic nitrates
Lawrence T. McGrath, MSc, PhD*,*,
Lana Dixon, MB, MRCP*,
David R. Morgan, BMedSci, MB, MRCP* and
Gary E. McVeigh, MD, PhD, FRCP*
* Department of Therapeutics and Pharmacology, Queens University Belfast, Belfast, Ireland

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Figure 1 Plasma ascorbate concentrations at baseline and after 72 h of nonintermittent transdermal nitroglycerin (NTG) (10 mg/24 h) with co-administration of placebo (NTG/placebo) or ascorbic acid (NTG/ascorbate). Data are presented as the mean value (95% CI). *p < 0.01.
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Figure 2 Platelet membrane esterified 8-epi prostaglandin2 (isoprostane) content at baseline and after 72 h of nonintermittent transdermal nitroglycerin (NTG) (10 mg/24 h) with co-administration of placebo (NTG/placebo) or ascorbic acid (NTG/ascorbate). Data are presented as the mean value (95% CI). *p < 0.05.
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Figure 3 Change in platelet membrane esterified 8-epi prostaglandin F2 (isoprostane) content after 72 h of nonintermittent transdermal nitroglycerin (NTG) (10 mg/24 h) with co-administration of placebo (NTG/placebo) or ascorbic acid (NTG/ascorbate). Data are presented as the mean value (95% CI). *p < 0.05.
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