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Myeloperoxidase - Wikipedia, the free encyclopedia (383 words) |
 | Myeloperoxidase deficiency is a rare hereditary deficiency of the enzyme, which leads to immune deficiency. |
| Historically, immunohistochemical staining for myeloperoxidase was used in the diagnosis of acute myeloid leukemia to demonstrate that the leukemic cells were derived from the myeloid lineage. |
| Myeloperoxidase staining is still important in the diagnosis of extramedullary leukemia, or chloroma. |
| MPO - myeloperoxidase (5457 words) |
| MMP-8 is activated by hypochlorous acid produced by myeloperoxidase from hydrogen peroxide and chloride ion and by the hydroxyl radical produced in Haber Weiss reaction fed by superoxide produced by, eg, NADPH (reduced nicotinamide adenine dinucleotide) oxidase and xanthine oxidase. |
| With this approach, several absorption peaks corresponding to myeloperoxidase and eosinophil peroxidase, which overlap with peaks of cytochrome b, were obliterated from reduced-minus-oxidized spectra, whereas the peaks of cytochrome b were not and could be readily quantitated. |
| Myeloperoxidase activity (index of inflammatory cells) and matrix metalloproteinase 2 were also increased but only at 4 and 7 days and only in nontransgenic mice (P < 0.05 for both comparisons), and this increase correlated with inflammatory cell infiltration. |
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