Browsing Faculty of Natural Sciences by Author "Green, Ivan"
Mugabo, Pierre; Obikeze, Kenechukwu; Njagi, Angela; Burger, Andries; Dietrich, Danielle; Green, Ivan (Open Access Science Research Publisher, 2012)Crinum macowanii has been used extensively in traditional medicines for treatment of various illnesses such as oedema and ‘heart disease’. Previous studies of the crude bulb extracts on Langendorff perfused isolated rat ...
Inorganic ions in leonotis leonurus extract do not explain changes in isolated Wistar rat heart function Burger, Andries; Mugabo, Pierre; Henkel, Ralf; Green, Ivan (Open Access Science Research Publisher, 2011)Leonotis leonurus (L. leonurus) R. Br (Lamiaceae) is used by healers in South Africa. The present study was conducted to determine if the L. leonurus effect on isolated rat heart is due to ionic changes in the perfusion fluid.
An unusual 2,3-secotaraxerene and other cytotoxic triterpenoids from pleiocarpa pycnantha (apocynaceae) leaves collected from Nigeria Omoyeni, Olubunmi A.; Meyer, Mervin; Iwuoha, Emmanuel; Green, Ivan; Hussein, Ahmed A. (MDPI, 2014)Three known triterpenoids, namely ursolic acid (1), and the 27-E- and 27-Z-pcoumaric esters of ursolic acid (compounds 2, 3), were isolated together with a new triterpene 2,3-seco-taraxer-14-en-2,3-lactone [pycanocarpine ...