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(Last updated: May 8, 2022)

Publications

Forthcoming

R, M, L.K O, J.O M, V M.  Forthcoming.  Cytotoxicity of principles from Bridelia micrantha.
L.K, O, J.O M, V K, T E.  Forthcoming.  Cytotoxicity of 48 Compounds from Kenyan flora against Drug Sensitive and Resistant Leukemia cell lines.

2022

Hashim, I, Onyari JM, Omosa LK, Maru SM, Nchiozem-Ngnitedem V-A, Karpoormath R.  2022.  Conglomeratin: A new antibacterial flavonol derivative from Macaranga conglomerata Brenan (Euphorbiaceae). Natural Products Research. :https://doi.org/10.1080/14786419.2022.2061481.hashim_et_al_2022_natural_products_research.pdf
Nchiozem-Ngnitedem, V-A, Omosa LK, Derese S, Efferth T, Spiteller M.  2022.  Cytotoxic flavonoids from the seeds of Dracaena steudneri Engl against leukemia cancer cell lines. Phytomedicine Plus. 2(2):100234.alexe_et_al_2022_phytomedicine_plus.pdf

2021

Chebet, ON, Omosa LK, Subramanian S, Nchiozem-Ngnitedem V-A, Mmari JO, Akutse KS.  2021.  Mechanism of Action of Endophytic Fungi Hypocrea lixii and Beauveria bassiana in Phaseolus vulgaris as Biopesticides against Pea Leafminer and Fall Armyworm. Molecules. 26(26):htts://doi.org/10.3390/molecules26185694.
Omosa, LK, Nchiozem-Ngnitedem V-A, Mukavi J, Okoko BA, Nyaboke HO, Hashim I, Efferth T, Spiteller M.  2021.  Cytotoxic Alkaloids from the Root of Zanthoxylum paracanthum (Mildbr) Kokwaro. Natural Products Research. :https://doi.org/10.1080/14786419.2021.1913586.omosa_et_al_2021_natural_products_research.pdf
Jepkoech, C, Omosa LK, Nchiozem-Ngnitedem V-A, Kenanda EO, Guefack M-GF, Mbaveng AT, Kuete V, Heydenreich M.  2021.  Antibacterial secondary metabolites from Vernonia auriculifera Hiern (Asteraceae) against MDR phenotypes. Natural Products Research. :https://doi.org/10.1080/14786419.2021.1953024.jepkoech_et_al_2021_natural_products_research.pdf
Hashim, I, Omosa LK, Nchiozem-Ngnitedem V-A, Onyari JM, Maru SM, Guefack M-GF, Mbaveng AT, Kuete V.  2021.  Antibacterial Activities and Phytochemical Screening of Crude Extracts from Kenyan Macaranga Species Towards MDR Phenotypes Expressing Effux Pumps. Pharmacognosy Communications. 11(2):119-126.hashim_et_al_2021_pharmacognosy_communications.pdf
Mokaya, TK, Omosa LK, Ogunah J, Nyamato GS.  2021.  Isolation and Characterization of Secondary Metabolites from Cola minor Stem Extracts. Tropical Journal of Natural Product Research. 5(4):621-625.
Isaiah, BM, Onyari JM, Omosa LK.  2021.  Physicochemical Properties, Fatty Acids Composition and Antioxidant Potential of the Seed Kernel Oil of Oysternut (Telfairia pedata) Found in Kenya. European Journal of Medicinal Plants. 32(1):46-56.benard_et_al_2020_european_journal_of_medicinal_plants.pdf

2020

Nchiozem-Ngnitedem, V-A, Omosa LK, Bedane KG, Derese S, Spiteller M.  2020.  Inhibition of ProInflammatory Cytokine Release by Flavones and Flavanones from the Leaves of Dracaena steudneri Engl.. Planta Medica. :DOI:10.1055/a-1306-1368.alexe_et_al_2020_planta_medica.pdf
Nchiozem-Ngnitedem, V-A, Omosa LK, Bedane KG, Derese S, Brieger L, Strohmann C, Spiteller M.  2020.  Anti-inflammatory Steroidal Sapogenins and a Conjugated Chalcone-stilbene from Dracaena usambarensis Engl.. Fitoterapia. 146:104717.alexe_et_al_2020_fitoterapia.pdf
Mukavi, J, Omosa LK, Nchiozem-Ngnitedem V-A, Nyaga J, Omole R, Bitchagno GTM, Spiteller M.  2020.  Anti-inflammatory norhopanes from the root bark of Fagaropsis angolensis (Engl.) H. M. Gardner. Fitoterapia. 146:104690.mukavi_et_al_2020_fitoterapia.pdf
Nchiozem-Ngnitedem, VA, Omosa LK, Derese S, Tane P, Heydenreich M, Spiteller M, Ean-JeongSeo, Efferth T.  2020.  Two new flavonoids from Dracaena usambarensis Engl.. Phytochemistry Letters. 36:80-85.alexe_et_al_2020_phytochemistry_letters.pdf
Nchiozem-Ngnitedema, V-A, Omosa LK, Derese S, Tane P, Heydenreich M, Spiteller M, Ean-JeongSeo, Efferth T.  2020.  Two new flavonoids from Dracaena usambarensis Engl. Phytochemistry Letter. 36:80-85.alex_et_al_2020.pdf
Omole, RA, Moshi MJ, Ilias M, Larry W, Malebo HM, Omosa LK, Midiwo JO.  2020.  In vitro Antiplasmodial and Cytotoxic activity of Three Medicinal Plants used Traditionally for Treatment of Malaria. Investigational Medicinal Chemistry & Pharmacology. 10(1):2-6.omole_et_al_2020.pdf
Owino, I, Omosa LK, Onyari JM, Mulaa F.  2020.  Improvement of Fastness of Tagetes minuta L (Tami) dye onto cotton fabric through functionalization. Journal of Natural Sciences Research Journal of Natural Sciences Research . 11(16)isemeki_et_al_2020_journl_of_natural_sciences_research.pdf

2019

Kenanda, EO, Omosa LK.  2019.  Anti-leishmanial activity of some surface compounds of Tarchonanthus camphoratus. Investigational Medicinal Chemistry & Pharmacology. 2 (2):30.kenanda_et_al_05082019.pdf
Okerio, KN, Kenanda EO, Omosa LK.  2019.  Antiproliferative Properties of Labdane Diterpenoids from Croton sylvaticus Hochst against Drug Sensitive and Resistant Leukemia cell lines. Investigational Medicinal Chemistry & Pharmacology. 2(2):31.okerio_et_al_2019.pdf
Omole, RA, Moshi MJ, Heydenreich M, Malebo HM, Gathirwa JW, Oriko RO, Omosa LK, Midiwo JO.  2019.  Antiplasmodial Biflavanones from the Stem Bark of Garcinia buchananii Engl.. Pharmacognosy Communications. 9(3):96-99.
Kamau, RW, Midiwo JO, Mgani QA, Masila VM, Omosa LK, Bwire RN, Jacob MR, Frank T. Wiggers IM.  2019.  Oleanolic Acid and other Compounds Isolated from Cordia Africana Lam which Inhibit Vancomycin Resistant Enterococcus. Pharmacognosy Communications. 9(3):91-95.rahab_et_al_2019_pharmacognosy.pdf
Omosa, LK, Amugune B, Mutai P, Karumu E, Mukungu N, Induli M, Kama-Kama F, Kuete V.  2019.  Rapid Screening Using GIBEX Screens-To-Nature System of Ethnomedicinal Plants from Ngong Forest, Kenya for Potency Against Infectious Diseases and Antioxidant Activities: A Qualitative Study. Pharmacognosy Communications. 9(2):59-74.omosa_et_al._2019_pharmacognosy_communications.pdfomosa_et_al._2019.pdf
Omole, RA, Moshi MJ, Heydenreich M, Malebo HM, Ochieng’ SA, Omosa LK, Midiwo JO.  2019.  Two novel lignans derivatives and two fusicoccane diterpenoids from whole plant of Hypoestes verticillaris (L.f.) Sol. ex Roem. & Schult. Phytochemistry Letters. 30:194-200.omole_et_al_2019.pdf
Omosa, LK, Mbogo GM, Korir E, Omole R, Ean-JeongSeo, Yenesew A, Midiwo MHJO, Efferth T.  2019.  Cytotoxicity of Fagaramide Derivative and Canthin-6-one from Zanthoxylum (Rutaceae) Species against Multidrug Resistant Leukemia Cells. Natural Products Research. https://doi.org/10.1080/14786419.2019.1587424:1-8.omosa_et_al_2019 pdf
Efferth, T, Omosa LK, et al.  2019.  "Biopiracy versus One-World Medicine–From Colonial Relicts to Global Collaborative Concepts. Phytomedicine. 53:319-331.efferth_et_al._2018

2018

Mwangi, HN, Onyango, Omosa LK, Mulaa F.  2018.  Virtual Screening and Validation of Potential Lead Compound from the Malaria Box against Plasmodium Falciparum S7 and S19 Proteins. Journal of Pharmaceutical Research. 2(2)
Nyaboke, HO, Moraa M, Omosa LK, Mbaveng AT, Vaderament-Alexe N-N, Masila V, Okemwa E, Heydenreich M, Efferth T, Kuete V.  2018.  Cytotoxicity of Lupeol from the Stem Bark of Zanthoxylum gilletii against Multi-factorial Drug Resistant Cancer Cell Lines . Investigational Medicinal Chemistry & Pharmacology . 1(1):10.
Kuete, V, Omosa LK, Karaosmanoğlu O, Sivas H.  2018.  Cytotoxicity of 11 Naturally occurring Phenolics and Terpenoids from Kenyan Flora towards Human Carcinoma Cells. Journal of Ayurveda and Integrative Medicine. https://doi.org/10.1016/j.jaim.2018.04.001kuete_et_al_2018 pdfkuete_et_al_2018 pdf

2017

Kama-Kama, F, Omosa LK, Nganga J, Maina N, Osanjo G, Yaouba S, Ilias M, Midiwo J, Naessens J.  2017.  Antimycoplasmal Activities of Compounds from Solanum aculeastrum and Piliostigma thonningii against Strains from the Mycoplasma mycoides Cluster. Frontiers in Pharmacology. 9:920.
Soares, ACF, Cabral MMW, Martins CHG, Ferreira AE, Bergamo PAS, Omosa LK, Midiwo JO, Parreira RLT, Heleno VCG.  2017.  Study of Anti-Tuberculosis Activity Behaviour of Natural Kaurane and Trachylobane Diterpenes Compared with Structural Properties Obtained by Theoretical Calculations. Natural Products Communications . 12(5):763-769.
Omosa, LK, Midiwo JO, Kuete V.  2017.  Medicinal Spices and Vegetables from Africa: Therapeutic Potential against Metabolic, Inflammatory and Infectious Diseases; Part III, Popoular African Medicinal Spices and Vegetables and their Health Effects. Elsevier publishers. 19:425-433.
Omosa, LK, Okemwa EK.  2017.  Antiplasmodial activities of the stem bark extract and compounds of Zanthoxylum gilletii (De wild) P.G. Waterman.. Pharmacognosy Communications. 7(1):41-46.
E.K, O, L.K O.  2017.  Semi-Synthetic Pyrazoline Derivatives from Polygonum senegalense Chalcones and their Anti-Microbial Activities. Pharmacognosy Communications. 7(1):53-60.
E, O, L.K O.  2017.  Pyrazole, Isoxazoline and Bypyrimidine Derivatives from Polygonum senegalense and Psiadia punctulata Flavonoids and their Anti- Microbial Activities. Pharmacognosy Communications. 7(1):47-52.

2016

  2016.  Standardization of Commiphora Abyssinica Engl. Gum Resin From Kajiado, Kenya. IOSR Journal of Applied Chemistry (IOSR-JAC) . 9(8):69-74.waweru_et_al_2016_iosr-jac.pdf
Victor, L.K O, V.R.S T, J.O M, A.T M, O K, H S, S S.  2016.  Cytotoxicity of Plumbagin, Rapanone and 12 other Naturally occurring Quinones towards Human Carcinoma Cells. BMC Pharmacology and Toxicology. 17:60.kuete_and_omosa_et_al._2016.pdf
B, N, M.K L, D.A M, H E, M.R J, S.I K, I M, L.K O, J.O M.  2016.  New ent-clerodane and abietane diterpenoids from the roots of Kenyan Croton megalocarpoides Friis & M.G. Gilbert. Planta Medica. doi, http://dx.doi.org/10.1055/s-0042-108857ndunda_et_al._planta_medica_2.pdf
F, K-K, J.O M, J N, N M, E S, L.K O, G O.  2016.  Selected Kenyan medicinal plants used to treat respiratory symptoms in ruminants show in vitro activity against major African livestock pathogens belonging to the "Mycoplasma mycoides cluster". Journal of Ethnopharmacology. 192:524-534.
E, A, L.K O, J.O M, A N, J M.  2016.  Antioxidant Activities of Flavonoid Aglycones from Kenyan Gardenia ternifolia Schum and Thonn. IOSR Journal of Pharmacy and Biological Sciences . 11(3):136-141.awas_et_al._iosr-jpbs.final_.pdfawas_et_al._iosr-jpbs.final_.pdf
Milugo, T, Masila VM, Owuor B, Bulimo W, Julius Oyugi, Ochanda J, Wamunyokoli F, Omosa LK.  2016.  Anti-cancer activities of crude extracts from medicinal plants Moringa oleifera Lam and Rauwolfia caffra against selected cancer cell lines. IOSR Journal of Pharmacy and Biological Sciences. 11(3):59-64.milugo_et_al._2016.pdf

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