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Year : 2011  |  Volume : 3  |  Issue : 7  |  Page : 325-328

Histopathological effects of sub-chronic lamivudine-artesunate co-administration on the liver of diseased adult Wistar rats

1 Department of Pharmacology & Therapeutics, Ahmadu Bello University, Zaria, Nigeria
2 Department of Heamatology & Blood Transfusion, Ahmadu Bello University Teaching Hospital, Zaria, Nigeria
3 Department of Veterinary Pathology and Microbiology, Ahmadu Bello University, Zaria, Nigeria

Correspondence Address:
Temidayo Olutoyin Olurishe
Department of Pharmacology & Therapeutics, Ahmadu Bello University, PMB 1045, Zaria
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Source of Support: None, Conflict of Interest: None

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Background: Lamivudine and artesunate are sometimes co administered in HIV-malaria co morbidity. Both drugs are used concurrently in presumptive malaria treatment and simultaneous HIV post exposure prophylaxis. Aim: The aim of this study was to investigate the effect of lamivudine-artesunate co administration on the histology of the liver of diseased adult Wistar rats. Materials and Methods: Five groups of rats of both sexes were used for the study and placed on feed and water ad libitum. Disease state consisted of immunosuppression with cyclophosphamide, and infection with Plasmodium berghei. Group 1 animals served as vehicle control, while group 2 were the diseased controls. Group 3 animals received 20 mg/kg lamivudine for three weeks, while group 4 similarly received 20 mg/kg Lamivudine but also received 10 mg/kg artesunate from day 12. Animals in group 5 received 10 mg/kg artesunate from day 12. All drugs were administered intraperitoneally. The animals were treated for twenty-one days, at the end of which they were sacrificed and their livers fixed in 10% formalin for histological studies. Result: Results from the study show the presence of regions of focal necrosis and perivascular cuffing with animals that received artesunate. Hemosiderosis was a common feature in all the parasitized groups, while fatty degeneration was observed in the group that received artesunate alone. Conclusion: Concurrent lamivudine-artesunate administration resulted in some histopathological changes in the liver. This study suggests there may be considerable histological changes with repeated occurrence of malaria and immunosuppression that may warrant intermittent lamivudine-artesunate administration, and may require evaluation as well as monitoring of liver function during such therapeutic interventions.

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