Abstract
In this study, the radioprotective effect of neutral polysaccharides from Hohenbuehelia serotina (NTHSP) against the damages induced by 60Co-γ radiation was investigated. The results showed that NTHSP could significantly improve the activity of glutathione peroxidase (GSH-Px) and increase the contents of glutathione (GSH) and ceruloplasmin in plasma after treated with 6Gy-radiation compared with the radiation controls (p<0.05). Furthermore, administration with NTHSP could effectively increase the quantity of marrow DNA (p<0.05) and reduce the rates of chromosome aberration and micronuclei (p<0.01) in bone marrows of mice. In addition, NTHSP could markedly inhibit the expressions of Bax protein and promote the expressions of Bcl-2 protein, accordingly inhibit the releases of cytochrome c and expressions of activated Caspase-3, and therefore block the mitochondrial apoptotic pathway of splenocytes in mice induced by 60Co-γ radiation. These results suggested that NTHSP might be a natural radioprotective agent against the injuries induced by radiation.
| Original language | English |
|---|---|
| Pages (from-to) | 352-359 |
| Number of pages | 8 |
| Journal | Physica Medica |
| Volume | 31 |
| Issue number | 4 |
| DOIs | |
| State | Published - 1 Jun 2015 |
| Externally published | Yes |
Keywords
- Hohenbuehelia serotina
- Isolation
- Neutral polysaccharides
- Radioprotective activity
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