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- W3031334717 abstract "ObjectiveTo study the effect and mechanism of the extract from grub on the CD40 of microglia cells in rabbit model of central retinal vein occlusion.MethodsThe 60 color rabbits were randomly divided into the blank group, model group, Xueshuantong group and sputum group. The Xueshuantong group was intragastrically administered with Xueshuantong tablets suspension 5 mg/ml, the sputum group was given gavage extract 1 g/ml, and the blank group and the model group were intragastrically administered with normal saline once daily. Except for the blank group, the other groups of rabbits were modeled by argon laser irradiation of the retinal vein trunk, and the fundus photography and FFA examination were performed immediately after modeling and at 1, 14 and 28 days after modeling, respectively, at 1, 3, 7, 14 and 28 day, the expression of CD40 in the optic nerve of rabbits was observed by immunohistochemical staining.ResultsThe FFA results showed that the veins were not filled at 1 day after model establishment, and some veins were not developed at 14 days, and there was no evidence of revascularization at 28 days. Part of the venous in the thrombus group and the sputum group was not filled. The venous filling time was significantly shorter than that in the model group at 14 days, and the venous filling time returned to the normal level at 28 days. The results of immunohistochemistry showed that the number of microglia increased significantly at 1 d in model group. The number of microglia reached the highest peak at 3 d, and the number of microglia decreased at 7 d, 14 d and 28 d. Compared to the model group, at the 3, 7, 14, 28 d, the integrated optical density of CD40 (3 d: 8 908.91 ± 96.30, 6 099.92 ± 273.44 vs. 10 436.4 ± 1 306.8; 7 d: 5 982.06 ± 483.37, 2 957.36 ± 424.19 vs. 8 798.12 ± 444.39; 14 d: 3 225.36 ± 468.88, 342.04 ± 64.56 vs. 5 356.74 ± 439.16; 28 d: 756.97 ± 80.17, 72.85 ± 11.06 vs. 4 215.27 ± 361.00) in the Xueshuantong group and sputum group significantly decreased (P<0.05).ConclusionsThe thrombus and sputum extract can inhibit the activation of microglia to varying degrees, and the sputum extract is moreinhibitory effect.Key words: Retinal vein occlusion; Microglia; CD40 antigens; Larva holotrichiae; Rabbits" @default.
- W3031334717 created "2020-06-05" @default.
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- W3031334717 date "2019-10-30" @default.
- W3031334717 modified "2023-09-25" @default.
- W3031334717 title "Effect of the extract from grub on the CD40 of microglia cell in rabbit model of central retinal vein occlusion" @default.
- W3031334717 doi "https://doi.org/10.3760/cma.j.issn.1673-4246.2019.10.015" @default.
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