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Omar, Ruwida M K and Igoli, John and Gray, Alexander I and Ebiloma, Godwin Unekwuojo and Clements, Carol and Fearnley, James and Edrada Ebel, Ru Angeli and Zhang, Tong and De Koning, Harry P and Watson, David G (2016) Chemical characterisation of Nigerian red propolis and its biological activity against Trypanosoma Brucei. Phytochemical Analysis, 27 (2). 107–115. ISSN 0958-0344
Teles, Yanna C. F. and Horta, Carolina Campolina Rebello and Agra, Maria de Fátima and Siheri, Weam and Boyd, Marie and Igoli, John O. and Gray, Alexander I. and de Souza, Maria de Fátima Vanderlei (2015) New sulphated flavonoids from Wissadula periplocifolia (L.) C. Presl (Malvaceae). Molecules, 20 (11). pp. 20161-20172. ISSN 1420-3049
Siheri, Weam and Igoli, John O. and Gray, Alexander I. and Nasciemento, Ticiano G. and Zhang, Tong and Fearnley, James and Clements, Carol J. and Carter, Katharine C. and Carruthers, John and Edrada-Ebel, RuAngelie and Watson, David G. (2014) The isolation of antiprotozoal compounds from Libyan propolis. Phytotherapy Research, 28 (12). 1756–1760. ISSN 0951-418X
Rashid, Mamoon-Ur and Ali, Saqib and Alamzeb, Muhammad and Igoli, John and Clements, Carol and Shah, SQ and Ferro, Valerie and Gray, Alexander and Khan, M Rafiullah (2014) Phytochemical and antitrypanosomal investigation of the fractions and compounds isolated from Artemesia elegantissima. Pharmaceutical Biology, 52 (8). pp. 983-987. ISSN 1388-0209
Saleem, Nabila Hamed Ahmed and Ferro, Valerie and Simpson, Ann and Igoli, John and Gray, Alexander and Drummond, Robert (2013) The inhibitory effect of Haloxylon salicornicum on contraction of the mouse uterus. Evidence-Based Complementary and Alternative Medicine, 2013. ISSN 1741-427X
Gray, Alexander I and Igoli, John O and Edrada-Ebel, Ruangelie (2012) Natural products isolation in modern drug discovery programs. Methods in Molecular Biology, 864. pp. 515-34.
Gray, Alexander and Igoli, John and Clements, Carol and Mouad, Hazar (2011) Anti-trypanosomal activity and cytotoxicity of some compounds and extracts from Nigerian medicinal plants. In: Phytochemicals. InTech, pp. 375-399. ISBN 9789533074245