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Mefloquine and Artequin are two effective antimalarial drugs currently in use in the treatment of uncomplicated malaria. This study was to investigate the hippocampal glial degenerative potentials of these drugs in adult Wistar rats. Forty-nine adult Wistar rats weighing 200 g were divided into groups 1–7. Group 1 served as the control that received distilled water, while groups 2–7 received oral doses of 0.86/1.07 mg/kg, 1.71/2.14 mg/kg, and 3.24/4.28 mg/kg of Artequin and 1.07 mg/kg, 2.14 mg/kg, and 4.28 mg/kg of Mefloquine. The treatment lasted for three days, and on day 4 the animals were sacrificed. Their hippocampi were preserved in neutral formal saline and processed by silver impregnation method. The histomorphology of the hippocampal sections of rats in the groups treated with 2.14 mg/kg and 4.28 mg/kg of Mefloquine and 0.86/1.07 mg/kg, 1.71/2.14 mg/kg, and 3.24/4.28 mg/kg of Artequin showed large and dense populations of astrocytes and astrocytes’ processes, with either loss or reduction in the population of oligodendrocytes. There was also loss in the population of pyramidal neurons all compared with the control group. In conclusion, Mefloquine and Artequin administration induced dose-dependent reactive astrocytes and astrocytes’ processes formation in the hippocampus. This may impair the uptake of neurotransmitter and alter neuronal environment thus altering the hippocampal function

Hippocampal Glial Degenerative Potentials of Mefloquine and Artequin in Adult Wistar Rats