Articles: Department of Biological Sciences: Recent submissions

Now showing items 141-160 of 285

Cultural Characterization of Fungi Isolated From Oil Contaminated Soils

Catherine, Catherine; Budambula, Nancy; Okoth, Sheila; Kagali, Robert; Matiru, Viviene (IISTE, 2015)

Application of Fungi for effective removal of hydrocarbon contamination from soil is being considered as the better option when it comes to biodegradation. Other method like physical and chemical bioremediation leads to ...
454 Pyrosequencing‑based assessment of bacterial diversity and community structure in termite guts, mounds and surrounding soils

Makonde, Huxley M.; Mwirichia, Romano; Osiemo, Zipporah; Boga, Hamadi I.; Klenk, Hans‑Peter (2015-09)

Termites constitute part of diverse and economically important termite fauna in Africa, but information on gut microbiota and their associated soil microbiome is still inadequate. In this study, we assessed and compared ...
Hepatitis B virus sero-profiles and genotypes in HIV-1 infected and uninfected injection and Non-injection drug users from coastal Kenya

Kilongosi, Mark W.; Budambula, Nancy; Lihana, Raphael; Musumba, Francis O.; Nyamache, Anthony K.; Budambula, Valentine; Ahmed, Aabid A.; Ouma, Collins; Were, Tom (2015-07-30)

Background Information about HBV sero-markers, infection stages and genotypes in HIV-1 infected and uninfected injection and non-injection drug users (IDUs) in Kenya remains elusive. Methods A cross-sectional study ...
Local management and landscape drivers of pollination and biological control services in a Kenyan agro-ecosystem

Otieno, Mark; Woodcock, Ben A.; Wilby, Andrew; Vogiatzakis, Ioannis N.; Mauchline, Alice L.; Gikungu, Mary W.; Potts, Simon G. (Elsevier, 2011)

Arthropods that have a direct impact on crop production (i.e. pests, natural enemies and pollinators) can be influenced by both local farm management and the context within which the fields occur in the wider landscape. ...
Effect of tillage method and sowing time on phenology, yield and yield components of chickpea (Cicer arietinum L.) under semi-arid conditions in Kenya

Onyari, Charles N.; Ouma, John; Kibe, A.M. (2010)

Objective: To determine the phenology, dry matter yield, grain yield and yield components of chickpea under four tillage methods and three sowing times within a semi-arid area of Kenya. Methodology and results: Field ...
Sorghum production for food security: A socioeconomic analysis of sorghum production in Nakuru County, Kenya

Ogeto, Robert M.; Cheruiyot, Erick; Mshenga, Patience; Onyari, Charles N. (Academic Journals, 2013-12-05)

Kenya’s Vision 2030 identifies agriculture as one of the key sectors to deliver sustainable economic growth and improved livelihoods for the poor in the rural areas. However, the sector continues to face several endemic ...
Effects of Zeolite X on Dissipation of Hexazinone from Agricultural Waste Waters in Western Kenya

Agoro, David J.; Kowenje, Chrispin O.; Lalah, Joseph O.; Osewe, Elly T.; Ogunah, Joanne A. (2013-10)

Dissipation of hexazinone in Zeolite X treated wastewater followed pseudo first-order kinetics giving a calculated half-life of 41 days compared to a half-life of 144 days in untreated wastewater. The herbicide degraded ...
Hypoglycemic Activity of Some Kenyan Plants Traditionally used to Manage Diabetes Mellitus in Eastern Province

Piero, Ngugi M.; Joan, Murugi N.; Kibiti, Cromwell M.; Ngeranwa, Joseph; Njue, Wilson N.; Maina, Daniel N.; Gathumbi, Peter; Njagi, Eliud N. (2011)

In this study five aqueous extracts; Bidens pilosa, Strychnos henningsii, Aspilia pluriseta, Catha edulis and Erythrina abyssinica were screened for anti-diabetic activity and their in vivo safety evaluated. The anti-diabetic ...
Hypoglycemic effect of Helichrysum odoratissimum in alloxan induced diabetic mice

Njagi, J.M.; Ngugi, Mathew P.; Kibiti, Cromwell M.; Ngeranwa, Joseph; Njue, Wilson N.; Gathumbi, Peter; Njagi, Eliud N. (2015)

Diabetes mellitus is a disease of antiquity with worrying global incidence and prevalence. Conventional management and/or treatment interventions have been hampered by drawbacks like high costs, inaccessibility, likelihood ...
Use of human nails as bio-indicators of heavy metals environmental exposure among school age children in Kenya

Hussein, Were F.; Njue, Wilson N.; Murungi, J.; Wanjau, R. (2008-04)

Metal pollution and its health effects present a challenge currently facing the developing countries. Metal poisoning is usually difficult and expensive to assess or screen in these countries due to limited resources, ...
Photolabelling of Prostaglandin E2 receptor in cardiac sarcolemmnal vesicles

Njue, Wilson N.; Liu, H.J.; Olley, P.N. (1990)

A [3H]azidophenacyl ester of PGE2 ([3H]azido-PGE2) was synthesized and used to photoaffinity label the protein component of the high affinity PGE2 binding site in cardiac sarcolemma membrane. Photolysis of the isolated ...
Organo-chlorine residues in tissues of marine fauna along the coast of Kenya Mombasa Island

Bor, S.K.; Simbauni, J.A.; Oyugi, Mildred P.; Njue, Wilson N.; Chhabra, S.C. (2007)

Soft tissues of species of marine fauna; crabs (Crust acea ), oysters ( Pelecypoda, Bivalvia), sea stars ( Asterroidea ), sea urchin (Echinoidea) and bony fishes (Osteichtyes) sampled along the Kenya - Mombasa coastal ...
molluscicidal and antimicrobial activity of solanum aculeastrum

Wanyonyi, Alphonse W.; Chhabra, S.C.; Mkojo, G.; Njue, Wilson N.; Tarus, Paul K. (2003)

The methanolic extract of the fresh root bark and berries of Solanum aculeastrum showed significant activity against host snails of schistosomiasis. The berries extract was more potent with 100% snail kill at 50 ppm. ...
In vitro antiplasmodial activity of some plants used in Kisii, Kenya against Malaria and their chloroquine potentiative effects.

Muregi, F.W.; Chhabra, S.C.; Njagi, Eliud N.; Lang’at-Thoruwa, C.; Njue, Wilson N.; Ndiege, I.O. (2003)

Fifty-five organic and aqueous extracts of 11 plants used in malaria therapy in Kisii District, Kenya were tested in vitro against chloroquine (CQ)-sensitive and resistant strains of Plasmodium falciparum. Of the plants ...
Heavy Metals and Pesticides in Marine Sediment, Seawater, and Seaplants Along the Kenya-Mombasa Coastline

Oyugi, Mildred P.; Chhabra, S.C.; Njue, Wilson N.; Kinyua, Anthony M. (Taylor & Francis, 2003)

Marine sediment, seawater and several species of seaplants along the Kenya- Mombasa coastal region were analyzed to determine the levels of heavy metals by AAS and EDXRF and organochlorine pesticides (OCPs) by GLC-ECD. In ...
Comparative assessment of total Phenolic content in selected medicinal plants

Johnson, C.E.; Oladeinde, F.O.; Kinyua, A.M.; Michelin, R.; Makinde, J.M.; Jaiyesimi, A.A.; Mbiti, W.N.; Kamau, G.N.; Kofi-Tsekpo, W.M.; Pramanik, S.; Williams, A.; Kennedy, A.; Bronner, Y.; Clarke, K.; Fofonoff, P.; Nemerson, D. (2008)

This study was to compare the total phenolic (TP) content in extracts from eleven plant materials collected at different geographical locations in Kenya, Nigeria, and USA. These plants have been selected because the majority ...
Bioactive steroidal alkaloid glycosides from Selanum aculeastrum.

Wanyonyi, Alphonse W.; Chhabra, S.C.; Mkoji, G.; Eilert, Udo; Njue, Wilson N. (2002)

Solanum aculeastrum Dunal was investigated for the presence of molluscicidal compounds. This led to the isolation of solaculine A, from the root bark in addition to known steroidal alkaloids; solamargine and beta-solamarine ...
Anti-plasmodial Activity of Some Kenyan Medicinal Plant Extracts Singly and in Combination with Chloroquine

Muregi, F.W.; Chhabra, S.C.; Njagi, Eliud N.; Lang’at, C.; Njue, Wilson N.; Orago, A.S.; Omar, S.A.; Ndiege, I.O. (Wiley InterScience, 2004)

Sixty organic and aqueous extracts of eleven plants used for the control of malaria by local communities in Kisii District, Kenya were screened for in vitro anti-plasmodial activity. The plants selection was based on ...
Antiplamodial Activity of some Kenyan medicinal plant extracts singly and in combination with Chloroquine

Muregi, F.W.; Chabbra, S.C.; Njue, Wilson N.; Njagi, Eliud N.; Langa’t, C.; Ndiege, I.O. (2004)

Sixty organic and aqueous extracts of eleven plants used for the control of malaria by local communities in Kisii District, Kenya were screened for in vitro anti-plasmodial activity. The plants selection was based on ...
Potential of indigenous bradyrhizobia versus commercial inoculants to improve cowpea (Vigna unguiculata L. walp.) and green gram (Vigna radiata L. wilczek.) yields in Kenya

Mathu, Samuel; Herrmann, Laetitia; Pypers, Pieter; Matiru, Viviene; Mwirichia, Romano K.; Lesueur, Didier (2012)

Limited information is available on reduced cowpea (Vigna unguiculata L. Walp.) and green gram (Vigna radiata L.Wilczek.) yields in Kenya. Declining soil fertility and absence or presence of ineffective indigenous rhizobia ...

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