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“The quantitative analysis of the Fe-K edge extended X-ray absorption fine structure (EXAFS) signals and modeling of the near edge (XANES) spectral features demonstrated that warfarin and ibuprofen binding modify the local structure of the heme-Fe(III).”
“ Ibuprofen and tolmetin, two other prostaglandin synthetase inhibitors, also inhibit the interaction of Fe++ with arachidonic acid suggesting this may be a general mechanism for this type of drug.”