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- 저자 : ( Delgerzul Baatar ) (검색결과 2 건)
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Delgerzul Baatar,Muhammad Zubair Siddiqi,임완택,니자르,황성구 한국식품영양과학회 2018 Journal of medicinal food Vol.21 No.10
Ginsenoside Rh2, a protopanaxadiol saponin from ginseng, has been reported to have strong anti-inflammatory activity. However, the concentration of ginsenoside Rh2 is very low (>0.001%) in the total ginseng extracted, which is not enough for production despite its high pharmacological effects. Thus, in this study, we evaluated the anti-inflammatory effect of ginsenoside Rh2-mix (GRh2-mix) on lipopolysaccharide (LPS)-stimulated RAW 264.7 murine macrophage cells. From the high-performance liquid chromatography analysis, it was confirmed that the GRh2-mix was mainly composed of 20(S)-Rh2, 20(R)-Rh2, Rk2, and Rh3. The LPS-stimulated RAW 264.7 cells were treated with different concentrations of GRh2-mix (100, 200, 400, 500 μg/mL). The cell counting kit-8 assay showed that the GRh2-mix treatment increased cell proliferation in LPS-stimulated RAW 264.7 murine macrophage cells. The GRh2-mix inhibited nitric oxide production in a dose-dependent manner, suggesting an anti-inflammatory effect. Furthermore, reverse transcription polymerase chain reaction and Western blot results also indicated that the GRh2-mix suppressed inflammatory genes such as iNOS, TNF-α, COX-2, IL-1β, IL-6, and NF-κB. In summary, these results suggest that the GRh2-mix exhibits anti-inflammatory activity via the downregulation of the NF-κB pathway and has high efficiency with a simple production procedure.
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( Heeok Hong ),( Delgerzul Baatar ),( Seong-gu Hwang ) 한국축산학회(구 한국동물자원과학회) 2021 한국축산학회지 Vol.63 No.2
It is already well known that castration improves marbling quality but exact timing of castra tion is still highly debated in beef cattle production industry. After castration, blood hormonal changes occur in steer and objective of this study was to investigate the effects of growth hormone (GH) levels on adipocyte differentiation in stromal vascular cells (SVCs) and trans -differentiation into adipocytes in C2C12 myoblasts. Total GH concentrations were measured via enzyme-linked immunosorbent assay (ELISA) in 24 male calves and 4 female calves. Cell proliferation, cellular triglyceride (TG) accumulation, and the cell’s lipolytic capability were measured in C2C12 myoblasts and SVCs. Myogenic, adipogenic, and brown adipocyte-spe cific gene expression was measured via real-time polymerase chain reaction (PCR) using SYBR green. Serum GH levels were the highest in late-castrated calves. Treatment with 5 ng/mL GH resulted in greater TG accumulation as well as increased CCAAT-enhancer-bind ing protein (C/EBP)α and peroxisome proliferator-activated receptor (PPAR)γ expression compared to that after treatment with 15 ng/mL GH. Treatment with 5 ng/mL GH also resulted in lower myogenin (myo)G and myoD expression compared to that after treatment with 15 ng/mL GH. The expression of bone morphogenetic protein (BMP) 7 after treatment with 5 ng/ mL GH was higher than that after treatment with 15 ng/mL GH. But carcass characteristics data showed no significant difference between early and late castrated steers. Therefore, our results indicate that castration timing does not seem to be inevitable determinate of carcass qualities, particularly carcass weight and marbling score in Hanwoo beef cattle.
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