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- W3024729387 abstract "The aim is to study the effect and its mechanism of Astragalus Radix combined with Angelicae Sinensis Radix on the proliferation of hematopoietic stem cells(HSCs) in senescence model. After drug-containing plasma of rats was prepared via intragastric administration, HSCs of mice were cultured in vitro, and then they were divided into blank control group, model group, blank plasma group, Astragalus Radix + Angelicae Sinensis Radix 1∶1 group and 10∶1 group, Angelicae Sinensis Radix plasma group, and Astragalus Radix plasma group. HSCs senescence model was induced by using tert-butyl hydrogen peroxide(t-BHP), and intervened by drug-containing plasma. Cells senescence rate was tested by SA-β-galactosidase staining method; cell cycle distribution was determined by flow cytometry; Cyclin D1, P21, and P53 mRNA were measured with RT-PCR, and Cyclin D1 protein expression was measured by Western blot. Results showed that after being induced by t-BHP, senescence rate of HSCs was increased; cell proliferation ability was decreased; count of G₀/G₁ phase cells was increased; count of G₂/M+S phase cells was reduced; Cyclin D1 expression was down-regulated while P53, P21 expression was up-regulated, which were reversed by Astragalus Radix + Angelicae Sinensis Radix 1∶1 and 10∶1, single Angelicae Sinensis Radix, and single Astragalus Radix plasma. Furthermore, the above effects were most obvious in Astragalus Radix+Angelicae Sinensis Radix 1∶1 group. These results suggested that t-BHP can promote HSCs senescence and reduce cell proliferation ability. Angelicae Sinensis Radix, Astragalus Radix and their combinations can inhibit HSCs senescence, promote HSCs proliferation as well as cell cycle conversion; moreover, the effects of 1∶1 Astragalus Radix+Angelicae Sinensis Radix were strongest. The mechanisms may be related to up-regulating the expression of cell cycle positive regulator, down-regulating the expression of cell cycle negative regulator, thus promoting the cells to enter the proliferation phase from the stationary phase." @default.
- W3024729387 created "2020-05-21" @default.
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- W3024729387 date "2017-11-01" @default.
- W3024729387 modified "2023-09-23" @default.
- W3024729387 title "[Effects of Astragali Radix combined with Angelicae Sinensis Radix on the proliferation of hematopoietic stem cells senescence model in mice]." @default.
- W3024729387 doi "https://doi.org/10.19540/j.cnki.cjcmm.20170928.014" @default.
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