Salvianolic acid B, an antioxidant derived from Salvia militarize, protects mice against γ‑radiation‑induced damage through Nrf2/Bach1

Zhou,Ruifang; Long,Haishan; Zhang,Bei; Lao,Zhizhao; Zheng,Quanyu; Wang,Tiancheng; Zhang,Yongxin; Wu,Qingguang; Lai,Xiaoping; Li,Geng; Lin,Lizhu

doi:10.3892/mmr.2018.9718

Salvianolic acid B, an antioxidant derived from Salvia militarize, protects mice against γ‑radiation‑induced damage through Nrf2/Bach1

Authors:
- Ruifang Zhou
- Haishan Long
- Bei Zhang
- Zhizhao Lao
- Quanyu Zheng
- Tiancheng Wang
- Yongxin Zhang
- Qingguang Wu
- Xiaoping Lai
- Geng Li
- Lizhu Lin
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Affiliations: School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, P.R. China, Department of Pharmacy, 458th Hospital of PLA, Guangzhou, Guangdong 510030, P.R. China, Department of Medical Oncology, The First Hospital Affiliated to Guangzhou University of Traditional Chinese Medicine, Guangzhou, Guangdong 510080, P.R. China
Published online on: December 3, 2018 https://doi.org/10.3892/mmr.2018.9718
Pages: 1309-1317
Copyright: © Zhou et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Salvianolic acid B (SB) is an antioxidant derived from Salvia militarize, and is one of the most widely used herbs in traditional Chinese medicine. SB is a potent antioxidant that has been well documented as a scavenger of oxygen free radicals, and has been used for the prevention and treatment of atherosclerosis‑associated disorders. To explore its potential therapeutic effects in treating radiation damage, in this study, mice were treated with SB at different doses of 5, 12.5 and 20 mg/kg, subsequent to receiving γ‑irradiation. The effects of SB on peripheral blood, bone marrow nucleated cells, spleen and thymus indices, and oxidation resistance were evaluated in both radiated mice and control groups. The results indicated that SB significantly increased the counts of peripheral white blood cells, red blood cells and platelets. The number of nucleated cells in the bone marrow and the level of protein increased as well. In addition, improved spleen and thymus indices in the bone marrow were observed. SB treatment additionally reversed the deterioration of both the thymus and spleen indices, which is associated with increased serum superoxide dismutase activity and decreasing malondialdehyde levels via nuclear factor (erythroid‑derived 2)‑like 2 protein/BTB and CNC homology 1 mediated antioxidant effect. Furthermore, ROS levels and Bax protein expression were also suppressed by SB. The data suggested that SB is effective in protecting mice from γ‑radiation injury, and could potentially be applicable for clinical use. Notably, the present study identified a promising candidate drug for enhancing the hematopoietic and immune systems.

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