Journal of
Toxicology and Environmental Health Sciences

  • Abbreviation: J. Toxicol. Environ. Health Sci.
  • Language: English
  • ISSN: 2006-9820
  • DOI: 10.5897/JTEHS
  • Start Year: 2009
  • Published Articles: 208

Full Length Research Paper

Correlation between glutathione S-transferase Mu 1 (GSTM1) and glutathione S-transferase pi gene (GSTP1) polymorphisms and markers of inflammatory stress in pregnant females

Poovendhree Reddy
  • Poovendhree Reddy
  • Department of Community Health Studies, Durban University of Technology, Durban, South Africa
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Rajen N. Naidoo
  • Rajen N. Naidoo
  • Discipline of Occupational and Environmental Health, School of Nursing and Public Health, University of KwaZulu-Natal, Durban, South Africa
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Kareshma Asharam
  • Kareshma Asharam
  • Discipline of Occupational and Environmental Health, School of Nursing and Public Health, University of KwaZulu-Natal, Durban, South Africa
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Anil Chuturgoon
  • Anil Chuturgoon
  • Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Durban, South Africa
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Dhaneshree Naidoo
  • Dhaneshree Naidoo
  • Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Durban, South Africa
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Alisa Phulukdaree
  • Alisa Phulukdaree
  • Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Durban, South Africa
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Shivona Gounden
  • Shivona Gounden
  • Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Durban, South Africa
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  •  Accepted: 13 March 2013
  •  Published: 31 March 2013

Abstract

The Mother and Child Environmental Cohort (MACE) study piloted in South Africa in 2010 to 2011, collected genetic, biochemical and clinical data from pregnant females residing in south and north Durban. We evaluated birth outcomes and the influence of GSTM1pos→GSTM1null and theGSTP1 (Ile105Val; AA→AG/GG) polymorphisms on the extent of DNA damage and with biomarkers [glutathione (GSH) and malondialdehyde (MDA)] related to oxidative stress in mothers with different levels of pollutant exposure. There was no significant difference in adverse birth outcomes or genotype distribution between mothers from the exposed and lower exposed areas. Mean GSH and comet tail length did not differ significantly between GSTM1pos and GSTM1null genotypes. When stratified by genotype, mean MDA levels was higher among GSTM1 null mothers compared to the GSTM1pos mothers (p = 0.01). When each of the genotypes was stratified by exposure, mean GSH concentration was significantly higher in north Durban for theGSTM1pos, GSTM1null and GSTP1AG+GG genotypes (p < 0.05), and mean comet tail length was significantly increased in south Durban among participants with the GSTM1pos, GSTM1null, and the GSTP1AG+GG genotypes. The expression of GSTM1 and GSTP1 polymorphic genotypes may lead to varying susceptibility to the adverse effects of pollutants by modifying the response to oxidative stress.

 

Key words: Glutathione S-transferase Mu 1 (GSTM1), glutathione S-transferase pi gene(GSTP1), oxidative stress, birth cohort, glutathione, gene polymorphism, DNA damage.