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Abstract

 Naphthoquinones are common compounds found in several species of Bignoniaceae and exhibit anti plasmodial activity hence providing leads for discovery and development of anti theilerial drugs.  This study has established the presence of naphthoquinones in the leaf, stem bark and root bark of S. kunthianum for both the hydrophilic and lipophilic extracts and established the anti theilerial activity of the lipophilic root bark extract. Sixteen unknown naphthoquinones in both the lipophilic and hydrophilic extracts of the leaf; stem bark and root bark of S. kunthianum  were screened by Thin layer chromatographic technique. The lipophilic root bark extract of S.kunthianum caused death of macroschizonts of T.parva with 18 % mean percentage activity at a start experimental dose of 1 µg/L. The mean percentage activity against macroschizonts of T. parva increased with increase in the concentration of the lipophilic root bark extract of S. kunthianum. The in vitro Median Effective Concentration, EC50 of 1.585µg/L as compared to the reported EC50 of 0.3 µg/L for Buparvaquone, a known hydroxy naphthoquinone used in the treatment of ECF, was obtained for the lipophilic root bark extract of Stereospermum kunthianum against Theileria parva by linear regression analysis.

Key words: Stereospermum kunthianum, Anti-theilerial Activity, Lipophilic, Root Bark Extract, Theileria Parva

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Author Biographies

Stephen Lutoti, NATURAL CHEMOTHERAPEUTICS RESEARCH INSTITUTE, MINISTRY OF HEALTH, UGANDA

RESEARCH OFFICER(PHARMACOLOGY)

Nobert Anyama, Makerere University

Lecturer, Pharmacy Department

Joseph Iberet, Uganda National Bureau of standards

Chemist

Wilberforce Kwiringira, National Drug Authority

Senior Drug quality analyst

Michael Bamuwamye, Natural Chemotherapeutics Research Institute

Research officer(Chemistry)

Jackline Aber, Natural Chemotherapeutics Research Institute

Research officer (Chemistry)

Cissy Nambejja, Natural Chemotherapeutics Research Institute

Research officer(Botany)

Moses Agwaya, Natural Chemotherapeutics Research Institute

Research Officer (Chemistry)

Charles Okia, Natural Chemotherapeutics Research Institute

Research officer(Botany)

Grace Kyeyune Nambatya, Natural Chemotherapeutics Research Institute

Director of Research

Patrick Engeu Ogwang, Natural Chemotherapeutics Research Institute

Research officer (Pharmacology)

Bernadine Joice Onegi, Makerere University

Senior Lecturer, Pharmacy Department
How to Cite
Lutoti, S., Anyama, N., Iberet, J., Kwiringira, W., Bamuwamye, M., Aber, J., Nambejja, C., Agwaya, M., Okia, C., Nambatya, G. K., Ogwang, P. E., & Onegi, B. J. (2014). Evaluation of Anti-theilerial Activity of A lipophilic Root Bark Extract of Stereospermum kunthianum against Theileria Parva. International Journal of Emerging Trends in Science and Technology, 1(04). Retrieved from http://igmpublication.org/ijetst.in/index.php/ijetst/article/view/126

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