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- W3141786612 abstract "Opioid peptides can be synthesised by placenta and act as endocrine and paracrine factors in placenta. Matrix metalloproteinases(MMPs) also can be synthesised and secreted by placenta and take an important role during implantation. In the present study, trophoblast tissues from human early placenta were incubated to study the opioid peptides regulation of MMPs. Analysis of medium by zymography determinated activities of MMP 2(EC 3. 4. 24. 24) and MMP 9(EC 3.4.24.35). β endorphin and dynorphin significantly decreased the activities of MMP 2 and MMP 9 in incubation medium ( P 0 01), and naloxone block these inhibition effects of β endorphin and dynorphin. Leu enkephalin had no effect on the activities of MMP 2 and MMP 9, Met enkephalin at 10 -6 mol/L significantly increased activities of MMP 2 and MMP 9 ( P 0 01) but had no significant effect at concentrations below 10 -6 mol/L. These data suggest that opioid peptides take a role in implantation through its regulation in MMP 2 and MMP 9 activities of human trophoblast." @default.
- W3141786612 created "2021-04-13" @default.
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- W3141786612 date "2000-01-01" @default.
- W3141786612 modified "2023-09-25" @default.
- W3141786612 title "OPIOID PEPTIDES REGULATE THE SECRETION OF MMP 2 AND MMP 9 IN HUMAN EARLY PLACENTA" @default.
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