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Biomarkers of oxidative stress and health risk assessment of heavy metal contaminated aquatic and terrestrial organisms by oil extraction industry in Ogale, Nigeria.
Chemosphere. 2017 Oct; 185:412-422.C

Abstract

Ogale community in Rivers State, Nigeria is characterized by crude-oil contamination of its land resources. The present study aimed to evaluate the health risk and metal (Cd, Pb, Zn, Cr, and Ni) contamination level of the vegetable (Telfairia occidentalis), snail (Achatina achatina) and the catfish (Clarias gariepinus) collected from Ogale community. Samples collected from Elele Alimini community, a less polluted area was used as control. Oxidative damage was evaluated in tissues of snail and in the liver of catfish. The concentration of most of the tested metals in the food samples collected from the polluted sites were higher than those from the reference sites and in most cases exceeded the acceptable permissible limits. The accumulation of the metals by the food samples followed the order: T. occidentalis > A. achatina > C. gariepinus. The tissues of the snail from the polluted sites showed higher malondialdehyde (MDA) and lower glutathione (GSH) levels, and higher MDA and GSH levels in the fish liver compared to control values. The health risks associated with these metals in terms of dietary intake and target hazard quotients (THQs) showed higher non-carcinogenic effect and carcinogenic risks especially for Pb and Cd from the ingestion of Telfairia occidentalis and Achatina achatina from polluted sites. The health hazards due to metal pollution for the highly-exposed consumers of the food samples, especially in Ogale require attention. The oxidative stress response to accumulation status of metals provides a relevant tool for the assessment of metal pollution.

Authors+Show Affiliations

Department of Biochemistry, Faculty of Science, University of Port Harcourt, Choba, Nigeria. Electronic address: sunny.abarikwu@uniport.edu.ng.Department of Biochemistry, Faculty of Science, University of Port Harcourt, Choba, Nigeria.Department of Biochemistry, Faculty of Science, University of Port Harcourt, Choba, Nigeria.Department of Soil Science, Faculty of Agriculture, University of Calabar, Calabar, Nigeria.Department of Biochemistry, Faculty of Science, University of Port Harcourt, Choba, Nigeria.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28710990

Citation

Abarikwu, Sunny O., et al. "Biomarkers of Oxidative Stress and Health Risk Assessment of Heavy Metal Contaminated Aquatic and Terrestrial Organisms By Oil Extraction Industry in Ogale, Nigeria." Chemosphere, vol. 185, 2017, pp. 412-422.
Abarikwu SO, Essien EB, Iyede OO, et al. Biomarkers of oxidative stress and health risk assessment of heavy metal contaminated aquatic and terrestrial organisms by oil extraction industry in Ogale, Nigeria. Chemosphere. 2017;185:412-422.
Abarikwu, S. O., Essien, E. B., Iyede, O. O., John, K., & Mgbudom-Okah, C. (2017). Biomarkers of oxidative stress and health risk assessment of heavy metal contaminated aquatic and terrestrial organisms by oil extraction industry in Ogale, Nigeria. Chemosphere, 185, 412-422. https://doi.org/10.1016/j.chemosphere.2017.07.024
Abarikwu SO, et al. Biomarkers of Oxidative Stress and Health Risk Assessment of Heavy Metal Contaminated Aquatic and Terrestrial Organisms By Oil Extraction Industry in Ogale, Nigeria. Chemosphere. 2017;185:412-422. PubMed PMID: 28710990.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Biomarkers of oxidative stress and health risk assessment of heavy metal contaminated aquatic and terrestrial organisms by oil extraction industry in Ogale, Nigeria. AU - Abarikwu,Sunny O, AU - Essien,Eka B, AU - Iyede,Oreva-Oghene, AU - John,Kingsley, AU - Mgbudom-Okah,Chidimma, Y1 - 2017/07/07/ PY - 2017/02/12/received PY - 2017/07/05/revised PY - 2017/07/06/accepted PY - 2017/7/16/pubmed PY - 2017/11/29/medline PY - 2017/7/16/entrez KW - Achatina achatina KW - Clarias gariepinus KW - Health risk KW - Heavy metals KW - Oxidative stress KW - Target hazard quotients KW - Telfairia occidentalis SP - 412 EP - 422 JF - Chemosphere JO - Chemosphere VL - 185 N2 - Ogale community in Rivers State, Nigeria is characterized by crude-oil contamination of its land resources. The present study aimed to evaluate the health risk and metal (Cd, Pb, Zn, Cr, and Ni) contamination level of the vegetable (Telfairia occidentalis), snail (Achatina achatina) and the catfish (Clarias gariepinus) collected from Ogale community. Samples collected from Elele Alimini community, a less polluted area was used as control. Oxidative damage was evaluated in tissues of snail and in the liver of catfish. The concentration of most of the tested metals in the food samples collected from the polluted sites were higher than those from the reference sites and in most cases exceeded the acceptable permissible limits. The accumulation of the metals by the food samples followed the order: T. occidentalis > A. achatina > C. gariepinus. The tissues of the snail from the polluted sites showed higher malondialdehyde (MDA) and lower glutathione (GSH) levels, and higher MDA and GSH levels in the fish liver compared to control values. The health risks associated with these metals in terms of dietary intake and target hazard quotients (THQs) showed higher non-carcinogenic effect and carcinogenic risks especially for Pb and Cd from the ingestion of Telfairia occidentalis and Achatina achatina from polluted sites. The health hazards due to metal pollution for the highly-exposed consumers of the food samples, especially in Ogale require attention. The oxidative stress response to accumulation status of metals provides a relevant tool for the assessment of metal pollution. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/28710990/Biomarkers_of_oxidative_stress_and_health_risk_assessment_of_heavy_metal_contaminated_aquatic_and_terrestrial_organisms_by_oil_extraction_industry_in_Ogale_Nigeria_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(17)31067-6 DB - PRIME DP - Unbound Medicine ER -