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Correlation of the oxidative stress indices and Cd exposure using a mathematical model in the earthworm, Eisenia fetida.
Chemosphere. 2019 Feb; 216:157-167.C

Abstract

With the increase in heavy metal pollution, it is of great significance to evaluate the ecological security and early warning of cadmium (Cd) contaminated soil. In this paper, a mathematical model was established for the first time by combining the advantages of the factor analysis method and the analytic hierarchy process, and was used to screen and analyze the ecological indices of oxidative stress in earthworms under Cd exposure. The experiment lasted for 40 days, removing one earthworm every 10 days. The Cd2+ concentration gradient was set at 0, 1, 10, 20, 100, 200, 400 and 800 mg kg-1. The ecological indices measured were total protein (TP), peroxidase (POD), superoxide dismutase (SOD), glutathione peroxidase (GPX), glutathione-S-transferase (GST), catalase (CAT), acetylcholinesterase (AChE) and malondialdehyde (MDA) levels. The results showed that when the earthworm was exposed to Cd2+ for 10 days and 30 days, in the head tissues, the key indices to focus on for monitoring were both POD. At 20 days and 40 days, the key indices were both TP. For the tail tissue tests, under Cd exposure for 10 days, the key indicator focused on for monitoring was MDA. After 20 days of exposure, the key monitoring indicator was AChE. At 30 days, it was CAT, and at 40 days, it was TP. This study provides a theoretical basis for the prompt, inexpensive, accurate and scientific early warning of metal contaminated soils and establishes a foundation for application of the screening model for other ecological indicators.

Authors+Show Affiliations

College of Resources and Environmental Science, Northeast Agricultural University, Harbin, 150030, China. Electronic address: zhouboshi@neau.edu.cn.College of Resources and Environmental Science, Northeast Agricultural University, Harbin, 150030, China.College of Resources and Environmental Science, Northeast Agricultural University, Harbin, 150030, China.Publicity and United Front Work Department, Northeast Agricultural University, Harbin, 150030, China. Electronic address: liuliyan@neau.edu.cn.College of Resources and Environmental Science, Northeast Agricultural University, Harbin, 150030, China; College of Physics Science and Engineering, Yulin Normal University, Yulin, 537000, China.Institute of Microbiology, Heilongjiang Academy of Sciences, Harbin, 150030, China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30366269

Citation

Dongxing, Zhou, et al. "Correlation of the Oxidative Stress Indices and Cd Exposure Using a Mathematical Model in the Earthworm, Eisenia Fetida." Chemosphere, vol. 216, 2019, pp. 157-167.
Dongxing Z, Yucui N, Congmin J, et al. Correlation of the oxidative stress indices and Cd exposure using a mathematical model in the earthworm, Eisenia fetida. Chemosphere. 2019;216:157-167.
Dongxing, Z., Yucui, N., Congmin, J., Liyan, L., Xiaoli, P., & Xu, C. (2019). Correlation of the oxidative stress indices and Cd exposure using a mathematical model in the earthworm, Eisenia fetida. Chemosphere, 216, 157-167. https://doi.org/10.1016/j.chemosphere.2018.10.117
Dongxing Z, et al. Correlation of the Oxidative Stress Indices and Cd Exposure Using a Mathematical Model in the Earthworm, Eisenia Fetida. Chemosphere. 2019;216:157-167. PubMed PMID: 30366269.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Correlation of the oxidative stress indices and Cd exposure using a mathematical model in the earthworm, Eisenia fetida. AU - Dongxing,Zhou, AU - Yucui,Ning, AU - Congmin,Jin, AU - Liyan,Liu, AU - Xiaoli,Pan, AU - Xu,Cao, Y1 - 2018/10/18/ PY - 2018/06/14/received PY - 2018/10/01/revised PY - 2018/10/16/accepted PY - 2018/10/27/pubmed PY - 2019/1/25/medline PY - 2018/10/27/entrez KW - Analytic hierarchy process KW - Cd exposure KW - Eisenia fetida KW - Factor analysis KW - Oxidative stress reaction SP - 157 EP - 167 JF - Chemosphere JO - Chemosphere VL - 216 N2 - With the increase in heavy metal pollution, it is of great significance to evaluate the ecological security and early warning of cadmium (Cd) contaminated soil. In this paper, a mathematical model was established for the first time by combining the advantages of the factor analysis method and the analytic hierarchy process, and was used to screen and analyze the ecological indices of oxidative stress in earthworms under Cd exposure. The experiment lasted for 40 days, removing one earthworm every 10 days. The Cd2+ concentration gradient was set at 0, 1, 10, 20, 100, 200, 400 and 800 mg kg-1. The ecological indices measured were total protein (TP), peroxidase (POD), superoxide dismutase (SOD), glutathione peroxidase (GPX), glutathione-S-transferase (GST), catalase (CAT), acetylcholinesterase (AChE) and malondialdehyde (MDA) levels. The results showed that when the earthworm was exposed to Cd2+ for 10 days and 30 days, in the head tissues, the key indices to focus on for monitoring were both POD. At 20 days and 40 days, the key indices were both TP. For the tail tissue tests, under Cd exposure for 10 days, the key indicator focused on for monitoring was MDA. After 20 days of exposure, the key monitoring indicator was AChE. At 30 days, it was CAT, and at 40 days, it was TP. This study provides a theoretical basis for the prompt, inexpensive, accurate and scientific early warning of metal contaminated soils and establishes a foundation for application of the screening model for other ecological indicators. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/30366269/Correlation_of_the_oxidative_stress_indices_and_Cd_exposure_using_a_mathematical_model_in_the_earthworm_Eisenia_fetida_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(18)31978-7 DB - PRIME DP - Unbound Medicine ER -