Abstract

Investigation to ascertain the levels of glutathione S-transferase (GST) activity of three human erythrocyte genotypes (HbAA, HbAS and HbSS) obtained from apparently healthy and clinically confirmedmalarious subjects/volunteers was carried out. The incubation of human erythrocytes with 1-chloro-2,4- dinitrobenzene (CDNB) resulted in almost quantitative conjugation of glutathione (GSH) to form S-(2,4-dinitrophenyl) glutathione. The reaction formed the basis for the spectrophotometric determination of GST activity. The levels of GST activity of the red cell genotypes was in the order of bAA0.05) affect erythrocyte GST activity of non-malarious subjects/volunteers. The study suggests that GST activity evaluation might be a reliable biochemical marker and possess promising rational for diagnostic potential in malaria

Highlights

  • Blood of HbSS genotype and malarious blood samples were from patients attending clinics at the Federal Medical Center (FMC), Imo State University

  • The erythrocyte haemolysate was used for the determination of glutathione S-transferase (GST) activity

  • The mean (+S.D) activity of glutathione S-transferase (GST) of three erythrocyte genotypes (HbAA, HbAS and HbSS) of blood samples obtained from nonmalarious and malarious human subjects/volunteers is presented in Table 1 below

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Summary

MATERIALS AND METHODS

Selection of Volunteers/ Experimental Design: Non-Malarious Subjects/Volunteers (Control Group): Seventy (70) male (61-73kg) subjects/volunteers of confirmed HbAA (25), HbAS (25) and HbSS (20) genotypes between the ages of 20-28years enrolled for this study. The female category was made up of forty-two (42) subjects/volunteers (55-69kg); HbAA (20), HbAS (20) and HbSS (12). Port Harcourt, Nigeria, granted approval for this study and all subjects/ volunteers involved signed an informed consent form. This conducted study was in accordance with the ethical principles that have their origins in the Declaration of Helsinki. Blood of HbSS genotype and malarious blood samples were from patients attending clinics at the Federal Medical Center (FMC), Imo State University. These centers are located in Owerri, Imo State, Nigeria. The erythrocyte haemolysate was used for the determination of GST activity

Determination of Erythrocytes Haemolysate
Determination of Erythrocyte Haemolysate
The enzyme assay was according to methods of
RESULTS AND DISCUSSION

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