997 resultados para Interleucina-17
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In bovine females the release of prostaglandin F 2α (PGF 2α) is induced in vivo by estradiol (E 2). It is believed that E 2 stimulates the synthesis of essential proteins for the production of PGF 2α. This study aimed to evaluate the effect of E 2 in increasing the concentration of total protein and modifying the protein composition of endometrial explants from bovine females treated with E 2 at the 17 th day of estrous cycle. Crossbred heifers were treated at 17 th day of estrous cycle intravenously with 0 mg (Control Group; n = 6) or 3 mg of E 2 (E 2 Group; n = 6) and killed two hours after. Endometrial explants were isolated, subjected to extraction of total protein, quantified and were analyzed by onedimensional electrophoresis on polyacrylamide gel 10% SDS-PAGE. The concentration of total protein did not differ between groups, 6296.10 + 439.90 μg/mL for the Control Group and 8426.56 + 1156.00 μg/mL for E 2 Group (p = 0.1158). There was no significant difference (p > 0.05) in the protein profile of endometrial explants in gels stained with Coomasie Blue. In gels stained with Silver Nitrate it was verified in E 2 Group greater relative percentage of the bands referring to the molecular weight of 75 to 76 kDa (8.40% vs. 4.89% in E 2 Group and Control respectively; p < 0.05) and 108 to 110 Kda (6.85% vs. 3.84% in E 2 Group and Control respectively, p < 0.05). It was observed in E 2 Group lower relative percentage of the band referring to the molecular weight of 90 kDa (5.78% vs. 9.83% in E 2 Group and control respectively; p < 0.05). We concluded that the E 2 does not increase the protein concentration in the endometrium, however, it modifies the proteinic composition in the endometrial explants, indicating that E 2 alters the expression of specific proteins.
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