In vitro free radical scavenging capacity of dimethylglycine sodium salt and its protective ability against oleic acid hydroperoxide-induced oxidative damage in IPEC-J2 cells

  • Authors:
    • Kaiwen Bai
    • Luyi Jiang
    • Ligen Zhang
    • Yongwei Zhao
    • Yi Lu
    • Jingya Zhu
    • Jie Cai
    • Lili Zhang
    • Tian Wang
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  • Published online on: September 13, 2018     https://doi.org/10.3892/ijmm.2018.3876
  • Pages: 3447-3458
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Abstract

The aim of the present study was to evaluate the in vitro free radical scavenging capacity of dimethylglycine sodium (DMG‑Na) and its protective ability against oleic acid hydroperoxide (OAHPx)‑induced oxidative damage in IPEC‑J2 cells. Initially, the free radical scavenging activities of water‑soluble pigments (DMG‑Na, betalain, capsanthin and cyanidin‑3‑rutinoside) were measured and compared with those of Trolox. Subsequently, freshly collected swine blood was mixed with heparin and centrifuged to obtain erythrocytes. In order to induce the free radical chain oxidation in erythrocytes, the aqueous peroxyl radicals were generated by thermal decomposition of 2,2'‑azobis(2‑amidinopropane) dihydrochloride (AAPH) in oxygen. A 2% suspension of porcine erythrocytes in PBS buffer were pre‑incubated for 30 min at 37˚C with DMG‑Na (32 µM), followed by incubation with or without AAPH (75 mM) for 5 h with gentle shaking. Additionally, IPEC‑J2 cells were randomly assigned to four groups (n=6 per group): Cells treated with phosphate buffered saline (PBS); cells treated with DMG‑Na (32 µM); cells treated with oleic acid hydroperoxides (OAHPx, 20 µM; TO group); cells treated with DMG‑Na (32 µM) followed by OAHPx (20 µM; DTO group). The cells were cultured in Dulbecco's modified Eagle's medium, Ham's F‑12 mixture, 1.5 mM HEPES, 5% (v/v) fetal bovine serum, 1% (v/v) insulin‑transferrin‑selenium mixture, 1% (v/v) penicillin‑streptomycin mixture and 2.5 µg/ml fungizone (37˚C, 5% CO2). The results showed that DMG‑Na exerted the strongest free radical scavenging capacity at 0.32 M from 0.08‑0.64 M, and that it could prevent AAPH‑induced porcine erythrocyte hemolysis by increasing its antioxidant capacity (P<0.05). The results also demonstrated that antioxidant capacity and antioxidant‑associated gene expression increased in the DTO group relative to the TO group (P<0.05), indicating that DMG‑Na prevented the OAHPx‑induced oxidative damage in IPEC‑J2 cells by improving the antioxidant capacity and antioxidant‑associated gene expression.
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December-2018
Volume 42 Issue 6

Print ISSN: 1107-3756
Online ISSN:1791-244X

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Spandidos Publications style
Bai K, Jiang L, Zhang L, Zhao Y, Lu Y, Zhu J, Cai J, Zhang L and Wang T: In vitro free radical scavenging capacity of dimethylglycine sodium salt and its protective ability against oleic acid hydroperoxide-induced oxidative damage in IPEC-J2 cells. Int J Mol Med 42: 3447-3458, 2018
APA
Bai, K., Jiang, L., Zhang, L., Zhao, Y., Lu, Y., Zhu, J. ... Wang, T. (2018). In vitro free radical scavenging capacity of dimethylglycine sodium salt and its protective ability against oleic acid hydroperoxide-induced oxidative damage in IPEC-J2 cells. International Journal of Molecular Medicine, 42, 3447-3458. https://doi.org/10.3892/ijmm.2018.3876
MLA
Bai, K., Jiang, L., Zhang, L., Zhao, Y., Lu, Y., Zhu, J., Cai, J., Zhang, L., Wang, T."In vitro free radical scavenging capacity of dimethylglycine sodium salt and its protective ability against oleic acid hydroperoxide-induced oxidative damage in IPEC-J2 cells". International Journal of Molecular Medicine 42.6 (2018): 3447-3458.
Chicago
Bai, K., Jiang, L., Zhang, L., Zhao, Y., Lu, Y., Zhu, J., Cai, J., Zhang, L., Wang, T."In vitro free radical scavenging capacity of dimethylglycine sodium salt and its protective ability against oleic acid hydroperoxide-induced oxidative damage in IPEC-J2 cells". International Journal of Molecular Medicine 42, no. 6 (2018): 3447-3458. https://doi.org/10.3892/ijmm.2018.3876