ABSTRACT Chloroquine was the mainstay of antimalarial chemotherapy because of its safety profile, effectiveness and the relatively cheap cost. However, the emergence of chloroquine-resistant Plasmodium falciparum parasites has rendered this drug ineffective in most regions where malaria is endemic. Most antimalarial drugs that act through blood - stage - specific mechanism are no longer effective due to the rapid emergence of drug resistance while the costs of development of new drugs continu...
ABSTRACT Physiological adaptations to aestivation and osmotic regulation of the African lungfish, Protopterus annectens (Owen, 1839) (Lepidosirenidae) of Anambra River, Nigeria (Lat. 50 42‟ & 70 40‟N and Long. 60 30‟ & 70 42‟E) were investigated. Some physico-chemical parameters of Anambra River and aestivation habits of P. annectens in the river and its flood plains were also determined, as well as the seasonal changes in gonadosomatic and hepatosomatic indices, condition factor, fe...
ABSTRACT Elite cowpea varieties IT84E-124 and Vita 7 of the International Institute for Tropical Agriculture, Ibadan, were exposed to varying doses of chemical and physical mutagens. Optimum doses of 10mm EMS for 6 hours and 0.1mM and 1.0mm NaN, for 2 hours, determined from seedling growth tests, and 100R and 200R gamma radiation were applied to seed samples of cach genotype. A total of 2000 seeds from each cultivar/treatment were planted. The suitability and efficacy of the treatment regimes...
ABSTRACT Ten out of the seven two plants marketed in Lagos State for medicinal and agricultural uses were selected for a study into their insecticidal activity. The ten selected plants Uvaria chamae, Jatropha curcas, Lophira alata, Ageratum conyzoides, Hyptis suaveolens, Alstonia boonei, Plumbago zeylanica, Tephrosia vogelii, Anacardium occidentale and Momordica charantia, were screened in the laboratory for bioactivity against three test insects namely Callosobruchus maculatus (F.), Sitophil...
Abstract Responses to structured questionnaires administered to farmers and housewives in southwestern part of Nigeria revealed that 39 plant species were in use for various purposes in the expressed belief that they possessed bioactive properties.
INTRODUCTION The damming of the Volta River in Ghana has stimulated an interest in the fisheries potential of the new lake.
GENERAL INTRODUCTION The family Synodontidae is a group of fish characterized by lizard-like head, spineless fins and a small adipose fin and are almost circumtropical in distribution.
Abstract. Collections of human sera from malaria-endemic areas would be valuable for identifying and characterizing antigens as malaria vaccine candidates if the contributing serum donors’ ability to resist infection were fully characterized. We prepared such a serum collection from 26 apparently immune Nigerian adults who failed to develop patent parasitemia for at least 20 weeks following a documented increase in antibodies to the circumsporozoite protein (CSP) from Plasmodium falciparum....
ABSTRACT Ibuya River runs across the Old Oyo National Park, a wildlife and recreational park. There is paucity of information on the limnology of the river which will provide information on the ecological status relevant for sustainable management. Therefore, this study was carried out to investigate the physico-chemical parameters, diversity and abundance of plankton, macrozoobenthos and fish fauna of Ibuya River. Surface water (72), plankton (72) and macrozoobenthic (72) samples were collec...
Abstract: The impact of soil properties, temperature and relative humidity on arthropod species composition, abundance and diversity was investigated in Apete and Aba-eku dumpsites and in a control site in Ibadan, Oyo state, Nigeria. Ten 250g size pitfalls one third filled with 5% formalin were placed in each point in order to trap and preserve the arthropods. The arthropods trapped in each pitfall were preserved in separate specimen bottle containing 70% ethanol before identification. A tota...