Tetrahydrobiopterin inhibits copper-induced oxidation of low density lipoprotein.


The effect of tetrahydrobiopterin (BPH4) on Cu2+-induced oxidation of low density lipoprotein (LDL) prepared from rabbit plasma was examined. BPH4 (0.5-10 microM) inhibited the formation of thiobarbituric acid-reactive substances (TBARS) in LDL induced by 5 microM Cu2+ in a dose-dependent manner. BPH4 also suppressed the increase in relative electrophoretic… (More)


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