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Toxicity of antioxidative extract collected from Styela clava tunics in ICR mice

Laboratory Animal Research volume 31, pages 125–133 (2015)Cite this article

Abstract

Some polymers and bioactive compounds derived from Styela clava tunic (SCT) have been reported as traditional medicine for the treatment of inflammation, oxidative stress and surgical wounds although there is little scientific evidence of their liver and kidney toxicity. To investigate the toxicity of ethanol extracts of SCT (EtSCT) in the liver and kidney of ICR mice, alterations in related markers including body weight, organ weight, urine composition, liver pathology and kidney pathology were analyzed following oral administration of 50 and 100 mg/kg body weight/day of EtSCT for 14 days. EtSCT showed a high level of free radical scavenging activity for DPPH (93.1%) and NO (16.2%) as well as the presence of 14.8 mg/ mL of flavonoids and 36.2 mg/mL of phenolics, while EtSCT treated groups did not show any significant alterations in the body and organ weight, clinical phenotypes, urine parameters or mice mortality when compared with the vehicle treated group. In addition, constant levels of serum biochemical markers including alanine phosphatase (ALP), alanine aminotransferase (ALT), aspartate aminotransferase (AST), blood urea nitrogen (BUN) and serum creatinine (CRE) were maintained. Moreover, no specific histopathological features induced by most toxic compounds were observed in liver and kidney sections stained with hematoxilin and eosin. Therefore, the present results indicate that EtSCT with strong antioxidant activity cannot induce any specific toxicity in liver and kidney organs of ICR at doses of 100 mg/kg body weight/day.

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Acknowledgments

We thank Jin Hyang Hwang for directing the animal facility and breeding SPF animals at the Laboratory Animal Resources Center. This study was supported by a grant to Professor Dae Youn Hwang from the Korea Institute of Marine Science & Technology Promotion (112088-3).

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  1. These authors are equally contributed this work.

Authors and Affiliations

  1. Department of Biomaterials Science, College of Natural Resources and Life Science/Life and Industry Convergence Research Institute, Pusan National University, 50 Cheonghak-ri, Samnangjin-eup, Miryang, Gyeongnam, 627-706, Korea

    Eun-Kyoung Koh, Ji-Eun Sung, Ji-Eun Kim, Jun Go, Sung-Hwa Song, Hyun-Ah Lee, Young-Jin Jung & Dae-Youn Hwang

  2. Department of Life Science and Environmental Biochemistry, College of Natural Resources & Life Science, Pusan National University, Miryang, Korea

    Hong-Joo Son

  3. Department of Clinical Laboratory Science, College of Nursing and Healthcare Science, Dong-Eui University, Busan, Korea

    Yong Lim

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  1. Eun-Kyoung Koh
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  4. Jun Go
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Correspondence to Dae-Youn Hwang.

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Koh, EK., Sung, JE., Kim, JE. et al. Toxicity of antioxidative extract collected from Styela clava tunics in ICR mice. Lab Anim Res 31, 125–133 (2015). https://doi.org/10.5625/lar.2015.31.3.125

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  • DOI: https://doi.org/10.5625/lar.2015.31.3.125

Keywords

Laboratory Animal Research

ISSN: 2233-7660