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Assessment of the genotoxicity in toad Bufo raddei exposed to petrochemical contaminants in Lanzhou Region, China.
Mutat Res. 2007 May 18; 629(2):81-8.MR

Abstract

Single cell gel electrophoresis or comet assay, micronucleus (MN) test and global DNA methylation detection were used to assess the genotoxicity in toad Bufo raddei exposed to the petrochemical (mainly oil and phenol) polluted area in Lanzhou Region (LZR) comparing with a relatively unpolluted area in Liujiaxia Region (LJXR). The results from the present study indicated that DNA damage and MN frequency in toad from LZR were significantly higher than those from LJXR at the same sampling month, whereas the degree of global DNA methylation was lower, which implies that the petrochemical contaminants at environmental level in LZR were genotoxic to B. raddei. The degree of genotoxic damage was obviously related with the extent of pollution among the three sampling months in LZR. The significantly positive correlations between DNA damage and concentrations of oil and/or phenol existed in liver cells but erythrocytes, implying that liver is more suitable as a sentinel tissue for the assessment of genotoxic impact of low-level contamination. The results from both comet assay and global DNA methylation detection on liver cells showed that the genotoxicity varied significantly with oil and/or phenol concentrations, suggesting that these two methods are relatively sensitive and suitable for monitoring the genotoxicity of petrochemical pollutants on amphibians.

Authors+Show Affiliations

School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

17344091

Citation

Huang, Dejun, et al. "Assessment of the Genotoxicity in Toad Bufo Raddei Exposed to Petrochemical Contaminants in Lanzhou Region, China." Mutation Research, vol. 629, no. 2, 2007, pp. 81-8.
Huang D, Zhang Y, Wang Y, et al. Assessment of the genotoxicity in toad Bufo raddei exposed to petrochemical contaminants in Lanzhou Region, China. Mutat Res. 2007;629(2):81-8.
Huang, D., Zhang, Y., Wang, Y., Xie, Z., & Ji, W. (2007). Assessment of the genotoxicity in toad Bufo raddei exposed to petrochemical contaminants in Lanzhou Region, China. Mutation Research, 629(2), 81-8.
Huang D, et al. Assessment of the Genotoxicity in Toad Bufo Raddei Exposed to Petrochemical Contaminants in Lanzhou Region, China. Mutat Res. 2007 May 18;629(2):81-8. PubMed PMID: 17344091.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Assessment of the genotoxicity in toad Bufo raddei exposed to petrochemical contaminants in Lanzhou Region, China. AU - Huang,Dejun, AU - Zhang,Yingmei, AU - Wang,Yejing, AU - Xie,Zhuoyi, AU - Ji,Weihong, Y1 - 2007/02/02/ PY - 2006/08/24/received PY - 2006/12/20/revised PY - 2007/01/16/accepted PY - 2007/3/9/pubmed PY - 2007/6/22/medline PY - 2007/3/9/entrez SP - 81 EP - 8 JF - Mutation research JO - Mutat Res VL - 629 IS - 2 N2 - Single cell gel electrophoresis or comet assay, micronucleus (MN) test and global DNA methylation detection were used to assess the genotoxicity in toad Bufo raddei exposed to the petrochemical (mainly oil and phenol) polluted area in Lanzhou Region (LZR) comparing with a relatively unpolluted area in Liujiaxia Region (LJXR). The results from the present study indicated that DNA damage and MN frequency in toad from LZR were significantly higher than those from LJXR at the same sampling month, whereas the degree of global DNA methylation was lower, which implies that the petrochemical contaminants at environmental level in LZR were genotoxic to B. raddei. The degree of genotoxic damage was obviously related with the extent of pollution among the three sampling months in LZR. The significantly positive correlations between DNA damage and concentrations of oil and/or phenol existed in liver cells but erythrocytes, implying that liver is more suitable as a sentinel tissue for the assessment of genotoxic impact of low-level contamination. The results from both comet assay and global DNA methylation detection on liver cells showed that the genotoxicity varied significantly with oil and/or phenol concentrations, suggesting that these two methods are relatively sensitive and suitable for monitoring the genotoxicity of petrochemical pollutants on amphibians. SN - 0027-5107 UR - https://www.unboundmedicine.com/medline/citation/17344091/Assessment_of_the_genotoxicity_in_toad_Bufo_raddei_exposed_to_petrochemical_contaminants_in_Lanzhou_Region_China_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1383-5718(07)00029-0 DB - PRIME DP - Unbound Medicine ER -