pr.cns@mak.ac.ug
pr.cns@mak.ac.ug
+256 (0) 414 532 401
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0414 532 401
Mr. Omara Timothy
Short Biography
Timothy Omara is an Assistant Lecturer of Chemistry at Makerere University, Uganda. He has proven research assiduity and track record of publications and refereeing across international peer-reviewed journals, with research interests at the interface of food toxicology, analytical, natural products and environmental chemistry employing modern analytical techniques.
Education/Academic Training
1. Doctor of Natural Sciences (Doktorin der Bodenkultur, Dr.nat.techn.), BOKU University, Vienna, Austria. March 2023-December 2026.
2. MSc (Analytical Chemistry), Moi University, Eldoret, Kenya. September 2019–December 2021.
3. BSc (Technology-Chemistry-First class honours), Kyambogo University, Kampala, Uganda. August 2014–December 2017.
2. MSc (Analytical Chemistry), Moi University, Eldoret, Kenya. September 2019–December 2021.
3. BSc (Technology-Chemistry-First class honours), Kyambogo University, Kampala, Uganda. August 2014–December 2017.
Publications
(a) Book Chapters and Dissertations
1. Kyarimpa, C., Omute, T., Nakiguli, C.K., Khanakwa, A.V., Angiro, C., Kahwa, I., Ahumuza, F., & Omara, T.* (2024) Safety, toxicological and allergenic aspects of using algae for food. In: Tonni Agustiono Kurniawan, & Abdelkader Anouzla (Eds). Algae as a Natural Solution for Water-Food-Energy Nexus; Microalgae and cyanobacteria for food applications. Springer Singapore. https://link.springer.com/book/9789819723706
2. Ayesiga, I., Iqbal, S., Kyejjusa, Y., Okoboi, J., Omara, T., Adelina, T., Deogratias, D., Anyole, A.A., Kagimu, B.B., Odongo, D., & Kahwa, I. (2024) Chapter 15: Key regulatory aspects of prebiotics, probiotics, and synbiotics in the management of metabolic disorders. In: Neeraj Mishra, Sumel Ashique, Arshad Farid, and Ashish Garg (Eds). Synbiotics in metabolic disorders: mechanisms, therapeutic potential, and future perspectives. CRC Press, 1st Ed., 31 pp. https://doi.org/10.1201/9781032702438-14
3. Kirima, J.M., & Omara, T. (2022) Chemical composition and insecticidal activity of Pinus caribaea Morelet var. hondurensis needles against Sitophilus zeamais Motschulsky and Callosobruchus maculatus Fabricius. In: Nzila et al. (Eds). Advances in Phytochemistry, Textile and Renewable Energy Research for Industrial Growth. 1st Ed., CRC Press, Taylor & Francis, 8 pages. https://doi.org/10.1201/9781003221968-22
4. Omara, T. (2021) Phytochemical composition, antioxidant and antibacterial activities of Albizia coriaria leaves from three agroecological zones of Uganda. MSc Dissertation, Moi University, Kenya. 158 pages.
1. Kyarimpa, C., Omute, T., Nakiguli, C.K., Khanakwa, A.V., Angiro, C., Kahwa, I., Ahumuza, F., & Omara, T.* (2024) Safety, toxicological and allergenic aspects of using algae for food. In: Tonni Agustiono Kurniawan, & Abdelkader Anouzla (Eds). Algae as a Natural Solution for Water-Food-Energy Nexus; Microalgae and cyanobacteria for food applications. Springer Singapore. https://link.springer.com/book/9789819723706
2. Ayesiga, I., Iqbal, S., Kyejjusa, Y., Okoboi, J., Omara, T., Adelina, T., Deogratias, D., Anyole, A.A., Kagimu, B.B., Odongo, D., & Kahwa, I. (2024) Chapter 15: Key regulatory aspects of prebiotics, probiotics, and synbiotics in the management of metabolic disorders. In: Neeraj Mishra, Sumel Ashique, Arshad Farid, and Ashish Garg (Eds). Synbiotics in metabolic disorders: mechanisms, therapeutic potential, and future perspectives. CRC Press, 1st Ed., 31 pp. https://doi.org/10.1201/9781032702438-14
3. Kirima, J.M., & Omara, T. (2022) Chemical composition and insecticidal activity of Pinus caribaea Morelet var. hondurensis needles against Sitophilus zeamais Motschulsky and Callosobruchus maculatus Fabricius. In: Nzila et al. (Eds). Advances in Phytochemistry, Textile and Renewable Energy Research for Industrial Growth. 1st Ed., CRC Press, Taylor & Francis, 8 pages. https://doi.org/10.1201/9781003221968-22
4. Omara, T. (2021) Phytochemical composition, antioxidant and antibacterial activities of Albizia coriaria leaves from three agroecological zones of Uganda. MSc Dissertation, Moi University, Kenya. 158 pages.
(b) Selected peer-reviewed articles [Web of Science]
1.
Nagawa, C.B., Kitiibwa, I.S., Kizito, S.S., Syofuna, A., Kyarimpa, C.M., & Omara, T. (2025) Chemical composition and insecticidal potential of Eucalyptus essential oils against Sitophilus zeamais (Motschulsky, 1855) and Acanthoscelides obtectus (Say, 1831). South African Journal of Botany 179, 48-55.
2.
Nantinda, C., Kisakye, E.L., Musana, D., Ssessanga, I., Ssenabulya, U., Omara, T., Kahwa, I., & Nalimu, F. (2025) Ethnobotany, floristic and phytochemical studies of medicinal plants used to treat uterine fibroids in Mbarara City, Uganda. Phytomedicine Plus 5, 100729.
3.
Kwikiriza, G., Abaho, I., Tibihika, P.D., Izaara, A.A., Atukwatse, F., Omara, T., Nattabi, J.K., Kasozi, N., Curto, M., Melcher, A., & Meimberg, H. (2025) Genetic Diversity and Population Differentiation of Farmed Nile Tilapia (Oreochromis niloticus) to Advance Selective Breeding in Uganda. Diversity 17, 128.
4.
Gumisiriza, H.*, Birungi, G., Omara, T.*, Lejju, J.B., & Sesaazi, C.D. (2025) Polyphenolic Content, Antioxidant Activity and Acute Toxicity of Gouania longispicata Engl. Leaves. Letters in Applied NanoBioScience 14(2), 93.
5.
Iqbal, S., & Omara, T. (2024) Matricin modulates carbamazepine-induced acute tubulointerstitial nephritis in rat models of Alzheimer’s disease via MEK-JAK2-STAT3 signaling. Revista Brasileira de Farmacognosia 34(4), 843–852.
6.
Rutehenda, D.R., Adaku, C., Omara, T.*, Angiro, C., & Ntambi, E. (2024) Enrichment, bioaccumulation and health risks of trace metals in soils and leafy vegetables grown on the banks of the Ugandan Lifeline River, River Rwizi. World 5, 136-154.
7.
Deffar, S.S., Kumar, A., Muliwa, A., Pili, N.N., & Omara, T.* (2024) Bioethanol production from water hyacinth with isolated thermophilic microbial consortium from Kenya. Comptes Rendus. Chimie 27, S3, 1-12.
8.
Nuwamanya, E., Byamugisha, D., Nakiguli, C.K., Angiro, C., Khanakwa, A.V., Omara, T.*, Ocakacon, S., Onen, P., Omoding, D., Opio, B., Nimusiima, D., & Ntambi, E. (2024) Exposure and health risks posed by potentially toxic elements in soils of metal fabrication workshops in Mbarara City, Uganda. Journal of Xenobiotics 14, 176–192.
9.
Dossou, A.J., Fandohan, A.B., Omara, T., & Chippaux, J.-P. (2024) Comprehensive review of epidemiology and treatment of snakebite envenomation in West Africa: Case of Benin. Journal of Tropical Medicine 2024, 8357312.
10.
Makeo, O., Okot,A.M., Isabirye,I., Omara, T.*, & Walugembe, J. (2024) Ethnomedicinal uses and nutritional composition of yams (Dioscorea hispida Dennst.) in Kitholhu, Kasese District, Uganda. Vegetos 37, 1887–1895.
11.
Kyarimpa, C., Omute, T., Nakiguli, C.K., Khanakwa, A.V., Angiro, C., Kahwa, I., Ahumuza, F., & Omara, T.* (2024) Chapter 25: Safety, toxicological and allergenic
4
aspects of using algae for food.
In: Tonni Agustiono Kurniawan, & Abdelkader Anouzla (Eds). Algae as a Natural Solution for Challenges in Water-Food-Energy Nexus. Environmental Science and Engineering. Springer, Singapore. pp. 745-769.
12.
Iqbal, S., Omara, T., Kahwa, I., & Khan, U.M. (2024) Anticancer potential of delphinidin and its derivatives: therapeutic and mechanistic insights. Medicinal Chemistry Research 33(10), 1769-1786.
13.
Tenywa, R., Omara, T.*, Kwikiriza, G., Angiro, C., & Ntambi, E.* (2024) Spring Water Quality in a Flood-Prone Area of Kampala City, Uganda: Insights Furnished by Sanitary and Limnochemical Data. Resources 13(10), 133.
14.
Gumula, I., Kyarimpa, C., Nanyonga, S.K., Kwesiga, G., Busulwa, G., Opio, B., Heydenreich, M., & Omara, T. (2024) Antibacterial properties of phytochemicals isolated from leaves of Alstonia boonei and aerial parts of Ipomoea cairica. Natural Product Communications 19(9), 1–9.
15.
Gumisiriza, H., Olet, E.A., Mwikali, L., Akatuhebwa, R., Omara, T., Lejju, J.B., & Sesaazi, D.C. (2024) Antibacterial and Antioxidant Activities of Flavonoids, Phenolic and Flavonoid Glycosides from Gouania longispicata leaves. Microbiology Research 15(4), 2085-2101.
16.
Iqbal, S., Omara, T., Khawa, I., & Khan, U.M. (2024) Protective effects of Sphaeranthus indicus floral extract against BPS-induced testicular damage in rats occurs through downregulation of RIPK1/3-MLK-driven necroptosis and Fas-FasL-mediated apoptosis. Advances in Traditional Medicine. https://doi.org/10.1007/s13596-024-00803-9
17.
Kaggwa, A., Byamugisha, D., Omara, T.*, & Ntambi, E. (2024) Assessment of Potentially Toxic Elements and Their Risks in Water and Sediments of Kitengure Stream, Buhweju Plateau, Uganda. Earth 5(4), 743-760.
18.
Barasa, S.S., Ntie-Kang, F., & The SAFARI Consortium (Wambu, E., Metuge, J., Kedi, P.B.E., Amewu, R., Shadrack, D.M., Barasa, D.T., Omara, T., & Mwasi, M.) (2024) Sustainably addressing Africa’s antimicrobial pollution crisis. Nature Reviews Earth & Environment 5, 837–838.
19.
Gumisiriza, H., Olet, E.A., Mwikali, L., Akatuhebwa, R., Kembabazi, O., Omara, T., & Lejju, J.B. (2024) Ethnopharmacology, Phytochemistry, Pharmacology and Toxicity of the Genus Gouania: A Review. Heliyon 10(24), e40933.
20.
Obakiro, S.B., Omara, T.*, Kiprop, A., Bunalema, L., Kowino, I., & Kigondu, E. (2024) Deciphering the antimycobacterial, cytotoxicity and phytochemical profile of Entada abyssinica stem bark. Vegetos 37, 1645–1651.
21.
Nimusiima, D., Byamugisha, D., Omara, T.,* & Ntambi, E. (2023) Physicochemical and microbial quality of water from the Ugandan stretch of the Kagera transboundary river. Limnological Review 23(3), 157-176.
22.
Onen, P., Akemkwene, R., Nakiguli, C.K., Nimusiima, D., Ruma, D.H., Khanakwa, A.V., Angiro, C., Bamanya, G., Opio, B., Gonzaga, A. & Omara, T.* (2023). Health risks from intake and contact with toxic metal-contaminated water from Pager River, Uganda. Journal of Xenobiotics 13(4), 544–559.
5
23.
Iqbal, S., Jabeen, F., Kahwa, I., & Omara, T. (2023) Suberosin alleviates thiazolidinedione-induced cardiomyopathy in diabetic rats by inhibiting ferroptosis via modulation of ACSL4-LPCAT3 and PI3K-AKT signaling pathways. Cardiovascular Toxicology 23(9-10), 295-304.
24.
Gumisiriza, H., Olet, E.A., Mukasa, P., Lejju, J.B., & Omara, T. (2023) Ethnomedicinal plants used for malaria treatment in Rukungiri District, Western Uganda. Tropical Medicine and Health 51, 49.
25.
Opedun, J.C., Wanasolo, W., Okullo, A. A., & Omara, T. (2023) Optimization of pyrolysis and selected physicochemical properties of groundnut shells, coffee and rice husks for biochar production. Jordan Journal of Mechanical and Industrial Engineering 17(3), 431– 442.
26.
Kyarimpa, C., Nagawa, C.B., Omara, T.*, Odongo, S., Ssebugere, P., Lugasi, S.O., & Gumula, I. (2023) Medicinal plants used in the management of sexual dysfunction, infertility and improving virility in the East African Community: A systematic review. Evidence-Based Complementary and Alternative Medicine 2023, 6878852.
27.
Mugume, H.K., Byamugisha, D., Omara, T.,* & Ntambi, E.* (2023) Deposition, dietary exposure and human health risks of heavy metals in mechanically-milled maize flours in Mbarara City, Uganda. Journal of Xenobiotics 13(3), 298-311.
28.
Tabuti, J.R.S., Obakiro, S.B., Nabatanzi, A., Anywar, G., Nambejja, C., Mutyaba, M.R., Omara, T., & Waako, P. (2023) Medicinal plants used for treatment of malaria by indigenous communities of Tororo District, Eastern Uganda. Tropical Medicine and Health 51, 34.
29.
Omara, T.; Nagawa, C.B.; Kyarimpa, C.; Böhmdorfer, S.; Rosenau, T.; Lugasi, S.O.; Matovu, H.; Odongo, S.; Ssebugere, P. (2023) Lacustrine Cyanobacteria, Algal Blooms and Cyanotoxins in East Africa: Implications for Human and Ecological Health Protection. Phycology 3, 147–167.
30.
Opolot, M., Omara, T., Adaku, C., & Ntambi, E. (2023) Pollution status, source apportionment, ecological and human health risks of potentially (eco)toxic element‑laden dusts from urban roads, highways and pedestrian bridges in Uganda. Pollutants 3, 74-88.
31.
Kahwa, I., Ajayi, C.O., Yadav, R., Chauhan, N.S., Shah, K., Abdelgadir, A.A., Shegena, E.A., Daniel, S., Omara, T., Asiimwe, J.B., Ikiriza, H., Iqbal, S., Tolo, C.U., Weisheit, A., Ogwang, P.E. (2023) Pharmacognostic and phytochemical studies as an invaluable approach for correct identification of medicinal plants: The case of Artemisia vulgaris L. substituted for Artemisia annua L. in Western Uganda. TMR Integrative Medicine 7, e23004.
32.
Opolot, M., Omara, T.*, Adaku, C., & Ntambi, E.* (2023) Pollution status, source apportionment, ecological and human health risks of potentially (eco)toxic element‑laden dusts from urban roads, highways and pedestrian bridges in Uganda. Pollutants 3(01), 74-88.
33.
Omara, T.*, Kiprop, A. K., & Kosgei, V. J. (2023). Phytochemicals, polyphenols content, in vitro antioxidant and antibacterial activities of Albizia coriaria Welw. ex Oliver
6
flowers.
Traditional Medicine Research 8(2), 7.
34.
Omara, T.*, Kiprop, A.K., & Kosgei, V.J. (2023) Albizia coriaria Welw ex Oliver: a review of its ethnobotany, phytochemistry and ethnopharmacology. Advances in Traditional Medicine 23, 631–646.
35.
Omara, T.*, Kiprop, A.K., & Kosgei, V.J. (2022) Two new pentacyclic triterpenoids, an alkaloid and a long-chain fatty acid from Albizia coriaria (Welw ex. Oliver). French-Ukrainian Journal of Chemistry 10(01), 128-141.
36.
Omara, T.*, Kiprop, A.K., Kosgei, V.J., & Kagoya, S. (2022). Clausena anisata (Willd.) Hook.f. ex Benth. (Rutaceae): Ethnomedicinal uses, phytochemistry, pharmacological activities, toxicity and clinical application. Traditional Medicine Research 7(6),51.
37.
Dossou, A.J., Fandohan, A.B., Omara, T., & Gbenou, J. (2022) Traditional knowledge and phytochemical screening of plants used in snakebite prevention in Benin. Bulletin of the National Research Centre 46(1), 160.
38.
Kebirungi, P., Nyombi, A., Omara, T., Adaku, C., & Ntambi, E. (2022). Oxytetracycline residues in bovine muscles, liver and kidney tissues from selected slaughter facilities in South Western Uganda. Bulletin of the National Research Centre 46, 17.
39.
Omara, T.*, Odero, M.P., Obakiro, S.B. (2022). Medicinal plants used for treating cancer in Kenya: An ethnopharmacological overview. Bulletin of the National Research Centre 46(1), 148.
40.
Omara, T.*, Sadia, B.O., Mbabazi, I., & Okwir, A. (2022) Ethnobotany, Phytochemistry, Ethnopharmacology and Toxicity of Euclea divinorum Hiern (Ebenaceae): A Review. Journal of the Turkish Chemical Society. Section A: Chemistry 9(2), 355-372.
41.
Omara, T.*, Kiprop, A. K., & Kosgei, V. J. (2022). Isolation and characterization of compounds in ethanolic extract of Albizia coriaria (Welw ex. Oliver) leaves: A further evidence of its ethnomedicinal diversity. Bulletin of the National Research Centre 46(1), 30.
42.
Omara, T.*, Kiprop, A. K., & Kosgei, V. J. (2021). Intraspecific variation of phytochemicals, antioxidant and antibacterial activities of different solvent extracts of Albizia coriaria leaves from some agro-ecological zones of Uganda. Evidence-Based Complementary and Alternative Medicine 2021, 2335454.
43.
Omara, T.*, Kiprop, A.K., Wangila, P., Wacoo, A.P., Kagoya, S., Nteziyaremye, P., Odero, M.P., Nakiguli, C.K., & Obakiro, S.B. (2021). The Scourge of Aflatoxins in Kenya: A 60-Year Review (1960 to 2020). Journal of Food Quality 2021, 8899839.
44.
Onen, P., Watmon, J., Omara, T.*, Ocira, D. (2021). Aflatoxin content and health risks associated with consumption of some herbal products sold in Kampala, Uganda. French-Ukrainian Journal of Chemistry 09(01), 01-08.
45.
Nanyanzi, D. R., Ocen, G.G., Omara, T., Bwire, F., Matovu, D., & Semwogerere, T. (2021) Design and Assembly of a Domestic Water Temperature, pH and Turbidity Monitoring System. BMC Research Notes 14(1), 1-4.
46.
Omara, T.*, Nakiguli, C.K., Naiyl, R.A., Opondo, F.A., Otieno, S.B., Ndiege, M.L., Mbabazi, I., Nassazi, W., Nteziyaremye, P., Kagoya, S., Okwir, A., & Etimu, E. (2021)
7
Medicinal Plants Used as Snake Venom Antidotes in East African Community: Review
and Assessment of Scientific Evidences. Journal of Medicinal and Chemical Sciences 4(1), 107-144.
47.
Obakiro, S.B., Kiprop, A., Kigondu, E., KO’wino, I., Odero, M.P., Manyim, S., Omara, T., Owor, R.O., Gavamukulya, Y., Bunalema, L., & Namukobe, J. (2021) Traditional medicinal uses, phytoconstituents, bioactivities and toxicities of Erythrina abyssinica Lam. ex DC. (Fabaceae): a systematic review. Evidence-Based Complementary and Alternative Medicine 2021, 5513484.
48.
Obakiro, S.B., Kiprop, A., KO’wino, I., Kigondu, E., Odero, M.P., Omara, T., & Bunalema, L. (2020). Ethnobotany, ethnopharmacology and phytochemistry of traditional medicinal plants used in the management of symptoms of tuberculosis in East Africa: a systematic review. Tropical Medicine and Health 48(1), 68.
49.
Omara, T.* (2020) Antimalarial plants used across Kenyan communities. Evidence-Based Complementary and Alternative Medicine 2020, 4538602.
50.
Nteziyaremye, P., & Omara, T.* (2020) Bioaccumulation of priority trace metals in edible muscles of West African lung fish (Protopterus annectens Owen, 1839) from Nyabarongo river, Rwanda. Cogent Environmental Science 6(1), 1779557.
51.
Omara, T.* (2020) Plants used in antivenom therapy in rural Kenya: Ethnobotany and future perspectives. Journal of Toxicology, 2020, 1828521.
52.
Omara, T.*, Kiprop, A. K., Ramkat, R.C., Cherutoi, J., Kagoya, S., Nyangena, D.M., Tebo, T.A., Nteziyaremye, P., Karanja, L. N., Jepchirchir, A., Maiyo, A., Kiptui, B. J., Mbabazi, I., Nakiguli, C. K., Nakabuye, B. V., & Koske, M. C. (2020) Medicinal plants used in traditional management of cancer in Uganda: Ethnobotanical surveys, phytochemistry and anticancer studies. Evidence-Based Complementary and Alternative Medicine 2020, 3529081.
53.
Omara, T.*, Kagoya, S., Openy, A., Omute, T., Ssebulime, S., Kiplagat, K. M., & Bongomin, O. (2020) Antivenin plants used for treatment of snakebites in Uganda: Ethnobotanical reports and pharmacological evidences. Tropical Medicine and Health 48(1), 6.
54.
Angiro, C., Abila, P.P. & Omara, T.* (2020) Effects of industrial effluents on the quality of water in Namanve stream, Kampala Industrial and Business Park, Uganda. BMC Research Notes, 13(1), 220.
55.
Mbeche, S.M.*, & Omara, T.* (2020) Effects of alkali treatment on mechanical and thermal properties of sisal/cattail polyester commingled composites. PeerJ Material Science Chemistry 2, 5.
56.
Omara, T.*, Nteziyaremye, P., Akaganyira, S., Opio, D.W., Karanja, L. N., Nyangena, D. M., Kiptui, B. J., Ogwang, R., Epiaka, S.M., Jepchirchir, A., & Maiyo, A. (2020) Physicochemical quality of water and health risks associated with consumption of African lung fish (Protopterus annectens) from Nyabarongo and Nyabugogo rivers, Rwanda. BMC Research Notes 13(1), 66.
57.
Omara, T.*, Nassazi, W., Omute, T., Awath, A., Laker, F., Kalukusu, R., Musau, B.,
8
Nakabuye, B. V., Kagoya, S., Otim, G., & Adupa, E. (
2020) Aflatoxins in Uganda: An encyclopedic review of the etiology, epidemiology, detection, quantification, exposure assessment, reduction and control. International Journal of Microbiology 2020, 4723612.
58.
Omara, T.*, Karungi, S., Kalukusu, R., Nakabuye, B.V., Kagoya, S., & Musau, B. (2019). Mercuric pollution of surface water, superficial sediments, Nile tilapia (Oreochromis nilotica Linnaeus 1758 [Cichlidae]) and yams (Dioscorea alata) in auriferous areas of Namukombe stream, Syanyonja, Busia, Uganda. PeerJ 7, e7919.
1.
Nagawa, C.B., Kitiibwa, I.S., Kizito, S.S., Syofuna, A., Kyarimpa, C.M., & Omara, T. (2025) Chemical composition and insecticidal potential of Eucalyptus essential oils against Sitophilus zeamais (Motschulsky, 1855) and Acanthoscelides obtectus (Say, 1831). South African Journal of Botany 179, 48-55.
2.
Nantinda, C., Kisakye, E.L., Musana, D., Ssessanga, I., Ssenabulya, U., Omara, T., Kahwa, I., & Nalimu, F. (2025) Ethnobotany, floristic and phytochemical studies of medicinal plants used to treat uterine fibroids in Mbarara City, Uganda. Phytomedicine Plus 5, 100729.
3.
Kwikiriza, G., Abaho, I., Tibihika, P.D., Izaara, A.A., Atukwatse, F., Omara, T., Nattabi, J.K., Kasozi, N., Curto, M., Melcher, A., & Meimberg, H. (2025) Genetic Diversity and Population Differentiation of Farmed Nile Tilapia (Oreochromis niloticus) to Advance Selective Breeding in Uganda. Diversity 17, 128.
4.
Gumisiriza, H.*, Birungi, G., Omara, T.*, Lejju, J.B., & Sesaazi, C.D. (2025) Polyphenolic Content, Antioxidant Activity and Acute Toxicity of Gouania longispicata Engl. Leaves. Letters in Applied NanoBioScience 14(2), 93.
5.
Iqbal, S., & Omara, T. (2024) Matricin modulates carbamazepine-induced acute tubulointerstitial nephritis in rat models of Alzheimer’s disease via MEK-JAK2-STAT3 signaling. Revista Brasileira de Farmacognosia 34(4), 843–852.
6.
Rutehenda, D.R., Adaku, C., Omara, T.*, Angiro, C., & Ntambi, E. (2024) Enrichment, bioaccumulation and health risks of trace metals in soils and leafy vegetables grown on the banks of the Ugandan Lifeline River, River Rwizi. World 5, 136-154.
7.
Deffar, S.S., Kumar, A., Muliwa, A., Pili, N.N., & Omara, T.* (2024) Bioethanol production from water hyacinth with isolated thermophilic microbial consortium from Kenya. Comptes Rendus. Chimie 27, S3, 1-12.
8.
Nuwamanya, E., Byamugisha, D., Nakiguli, C.K., Angiro, C., Khanakwa, A.V., Omara, T.*, Ocakacon, S., Onen, P., Omoding, D., Opio, B., Nimusiima, D., & Ntambi, E. (2024) Exposure and health risks posed by potentially toxic elements in soils of metal fabrication workshops in Mbarara City, Uganda. Journal of Xenobiotics 14, 176–192.
9.
Dossou, A.J., Fandohan, A.B., Omara, T., & Chippaux, J.-P. (2024) Comprehensive review of epidemiology and treatment of snakebite envenomation in West Africa: Case of Benin. Journal of Tropical Medicine 2024, 8357312.
10.
Makeo, O., Okot,A.M., Isabirye,I., Omara, T.*, & Walugembe, J. (2024) Ethnomedicinal uses and nutritional composition of yams (Dioscorea hispida Dennst.) in Kitholhu, Kasese District, Uganda. Vegetos 37, 1887–1895.
11.
Kyarimpa, C., Omute, T., Nakiguli, C.K., Khanakwa, A.V., Angiro, C., Kahwa, I., Ahumuza, F., & Omara, T.* (2024) Chapter 25: Safety, toxicological and allergenic
4
aspects of using algae for food.
In: Tonni Agustiono Kurniawan, & Abdelkader Anouzla (Eds). Algae as a Natural Solution for Challenges in Water-Food-Energy Nexus. Environmental Science and Engineering. Springer, Singapore. pp. 745-769.
12.
Iqbal, S., Omara, T., Kahwa, I., & Khan, U.M. (2024) Anticancer potential of delphinidin and its derivatives: therapeutic and mechanistic insights. Medicinal Chemistry Research 33(10), 1769-1786.
13.
Tenywa, R., Omara, T.*, Kwikiriza, G., Angiro, C., & Ntambi, E.* (2024) Spring Water Quality in a Flood-Prone Area of Kampala City, Uganda: Insights Furnished by Sanitary and Limnochemical Data. Resources 13(10), 133.
14.
Gumula, I., Kyarimpa, C., Nanyonga, S.K., Kwesiga, G., Busulwa, G., Opio, B., Heydenreich, M., & Omara, T. (2024) Antibacterial properties of phytochemicals isolated from leaves of Alstonia boonei and aerial parts of Ipomoea cairica. Natural Product Communications 19(9), 1–9.
15.
Gumisiriza, H., Olet, E.A., Mwikali, L., Akatuhebwa, R., Omara, T., Lejju, J.B., & Sesaazi, D.C. (2024) Antibacterial and Antioxidant Activities of Flavonoids, Phenolic and Flavonoid Glycosides from Gouania longispicata leaves. Microbiology Research 15(4), 2085-2101.
16.
Iqbal, S., Omara, T., Khawa, I., & Khan, U.M. (2024) Protective effects of Sphaeranthus indicus floral extract against BPS-induced testicular damage in rats occurs through downregulation of RIPK1/3-MLK-driven necroptosis and Fas-FasL-mediated apoptosis. Advances in Traditional Medicine. https://doi.org/10.1007/s13596-024-00803-9
17.
Kaggwa, A., Byamugisha, D., Omara, T.*, & Ntambi, E. (2024) Assessment of Potentially Toxic Elements and Their Risks in Water and Sediments of Kitengure Stream, Buhweju Plateau, Uganda. Earth 5(4), 743-760.
18.
Barasa, S.S., Ntie-Kang, F., & The SAFARI Consortium (Wambu, E., Metuge, J., Kedi, P.B.E., Amewu, R., Shadrack, D.M., Barasa, D.T., Omara, T., & Mwasi, M.) (2024) Sustainably addressing Africa’s antimicrobial pollution crisis. Nature Reviews Earth & Environment 5, 837–838.
19.
Gumisiriza, H., Olet, E.A., Mwikali, L., Akatuhebwa, R., Kembabazi, O., Omara, T., & Lejju, J.B. (2024) Ethnopharmacology, Phytochemistry, Pharmacology and Toxicity of the Genus Gouania: A Review. Heliyon 10(24), e40933.
20.
Obakiro, S.B., Omara, T.*, Kiprop, A., Bunalema, L., Kowino, I., & Kigondu, E. (2024) Deciphering the antimycobacterial, cytotoxicity and phytochemical profile of Entada abyssinica stem bark. Vegetos 37, 1645–1651.
21.
Nimusiima, D., Byamugisha, D., Omara, T.,* & Ntambi, E. (2023) Physicochemical and microbial quality of water from the Ugandan stretch of the Kagera transboundary river. Limnological Review 23(3), 157-176.
22.
Onen, P., Akemkwene, R., Nakiguli, C.K., Nimusiima, D., Ruma, D.H., Khanakwa, A.V., Angiro, C., Bamanya, G., Opio, B., Gonzaga, A. & Omara, T.* (2023). Health risks from intake and contact with toxic metal-contaminated water from Pager River, Uganda. Journal of Xenobiotics 13(4), 544–559.
5
23.
Iqbal, S., Jabeen, F., Kahwa, I., & Omara, T. (2023) Suberosin alleviates thiazolidinedione-induced cardiomyopathy in diabetic rats by inhibiting ferroptosis via modulation of ACSL4-LPCAT3 and PI3K-AKT signaling pathways. Cardiovascular Toxicology 23(9-10), 295-304.
24.
Gumisiriza, H., Olet, E.A., Mukasa, P., Lejju, J.B., & Omara, T. (2023) Ethnomedicinal plants used for malaria treatment in Rukungiri District, Western Uganda. Tropical Medicine and Health 51, 49.
25.
Opedun, J.C., Wanasolo, W., Okullo, A. A., & Omara, T. (2023) Optimization of pyrolysis and selected physicochemical properties of groundnut shells, coffee and rice husks for biochar production. Jordan Journal of Mechanical and Industrial Engineering 17(3), 431– 442.
26.
Kyarimpa, C., Nagawa, C.B., Omara, T.*, Odongo, S., Ssebugere, P., Lugasi, S.O., & Gumula, I. (2023) Medicinal plants used in the management of sexual dysfunction, infertility and improving virility in the East African Community: A systematic review. Evidence-Based Complementary and Alternative Medicine 2023, 6878852.
27.
Mugume, H.K., Byamugisha, D., Omara, T.,* & Ntambi, E.* (2023) Deposition, dietary exposure and human health risks of heavy metals in mechanically-milled maize flours in Mbarara City, Uganda. Journal of Xenobiotics 13(3), 298-311.
28.
Tabuti, J.R.S., Obakiro, S.B., Nabatanzi, A., Anywar, G., Nambejja, C., Mutyaba, M.R., Omara, T., & Waako, P. (2023) Medicinal plants used for treatment of malaria by indigenous communities of Tororo District, Eastern Uganda. Tropical Medicine and Health 51, 34.
29.
Omara, T.; Nagawa, C.B.; Kyarimpa, C.; Böhmdorfer, S.; Rosenau, T.; Lugasi, S.O.; Matovu, H.; Odongo, S.; Ssebugere, P. (2023) Lacustrine Cyanobacteria, Algal Blooms and Cyanotoxins in East Africa: Implications for Human and Ecological Health Protection. Phycology 3, 147–167.
30.
Opolot, M., Omara, T., Adaku, C., & Ntambi, E. (2023) Pollution status, source apportionment, ecological and human health risks of potentially (eco)toxic element‑laden dusts from urban roads, highways and pedestrian bridges in Uganda. Pollutants 3, 74-88.
31.
Kahwa, I., Ajayi, C.O., Yadav, R., Chauhan, N.S., Shah, K., Abdelgadir, A.A., Shegena, E.A., Daniel, S., Omara, T., Asiimwe, J.B., Ikiriza, H., Iqbal, S., Tolo, C.U., Weisheit, A., Ogwang, P.E. (2023) Pharmacognostic and phytochemical studies as an invaluable approach for correct identification of medicinal plants: The case of Artemisia vulgaris L. substituted for Artemisia annua L. in Western Uganda. TMR Integrative Medicine 7, e23004.
32.
Opolot, M., Omara, T.*, Adaku, C., & Ntambi, E.* (2023) Pollution status, source apportionment, ecological and human health risks of potentially (eco)toxic element‑laden dusts from urban roads, highways and pedestrian bridges in Uganda. Pollutants 3(01), 74-88.
33.
Omara, T.*, Kiprop, A. K., & Kosgei, V. J. (2023). Phytochemicals, polyphenols content, in vitro antioxidant and antibacterial activities of Albizia coriaria Welw. ex Oliver
6
flowers.
Traditional Medicine Research 8(2), 7.
34.
Omara, T.*, Kiprop, A.K., & Kosgei, V.J. (2023) Albizia coriaria Welw ex Oliver: a review of its ethnobotany, phytochemistry and ethnopharmacology. Advances in Traditional Medicine 23, 631–646.
35.
Omara, T.*, Kiprop, A.K., & Kosgei, V.J. (2022) Two new pentacyclic triterpenoids, an alkaloid and a long-chain fatty acid from Albizia coriaria (Welw ex. Oliver). French-Ukrainian Journal of Chemistry 10(01), 128-141.
36.
Omara, T.*, Kiprop, A.K., Kosgei, V.J., & Kagoya, S. (2022). Clausena anisata (Willd.) Hook.f. ex Benth. (Rutaceae): Ethnomedicinal uses, phytochemistry, pharmacological activities, toxicity and clinical application. Traditional Medicine Research 7(6),51.
37.
Dossou, A.J., Fandohan, A.B., Omara, T., & Gbenou, J. (2022) Traditional knowledge and phytochemical screening of plants used in snakebite prevention in Benin. Bulletin of the National Research Centre 46(1), 160.
38.
Kebirungi, P., Nyombi, A., Omara, T., Adaku, C., & Ntambi, E. (2022). Oxytetracycline residues in bovine muscles, liver and kidney tissues from selected slaughter facilities in South Western Uganda. Bulletin of the National Research Centre 46, 17.
39.
Omara, T.*, Odero, M.P., Obakiro, S.B. (2022). Medicinal plants used for treating cancer in Kenya: An ethnopharmacological overview. Bulletin of the National Research Centre 46(1), 148.
40.
Omara, T.*, Sadia, B.O., Mbabazi, I., & Okwir, A. (2022) Ethnobotany, Phytochemistry, Ethnopharmacology and Toxicity of Euclea divinorum Hiern (Ebenaceae): A Review. Journal of the Turkish Chemical Society. Section A: Chemistry 9(2), 355-372.
41.
Omara, T.*, Kiprop, A. K., & Kosgei, V. J. (2022). Isolation and characterization of compounds in ethanolic extract of Albizia coriaria (Welw ex. Oliver) leaves: A further evidence of its ethnomedicinal diversity. Bulletin of the National Research Centre 46(1), 30.
42.
Omara, T.*, Kiprop, A. K., & Kosgei, V. J. (2021). Intraspecific variation of phytochemicals, antioxidant and antibacterial activities of different solvent extracts of Albizia coriaria leaves from some agro-ecological zones of Uganda. Evidence-Based Complementary and Alternative Medicine 2021, 2335454.
43.
Omara, T.*, Kiprop, A.K., Wangila, P., Wacoo, A.P., Kagoya, S., Nteziyaremye, P., Odero, M.P., Nakiguli, C.K., & Obakiro, S.B. (2021). The Scourge of Aflatoxins in Kenya: A 60-Year Review (1960 to 2020). Journal of Food Quality 2021, 8899839.
44.
Onen, P., Watmon, J., Omara, T.*, Ocira, D. (2021). Aflatoxin content and health risks associated with consumption of some herbal products sold in Kampala, Uganda. French-Ukrainian Journal of Chemistry 09(01), 01-08.
45.
Nanyanzi, D. R., Ocen, G.G., Omara, T., Bwire, F., Matovu, D., & Semwogerere, T. (2021) Design and Assembly of a Domestic Water Temperature, pH and Turbidity Monitoring System. BMC Research Notes 14(1), 1-4.
46.
Omara, T.*, Nakiguli, C.K., Naiyl, R.A., Opondo, F.A., Otieno, S.B., Ndiege, M.L., Mbabazi, I., Nassazi, W., Nteziyaremye, P., Kagoya, S., Okwir, A., & Etimu, E. (2021)
7
Medicinal Plants Used as Snake Venom Antidotes in East African Community: Review
and Assessment of Scientific Evidences. Journal of Medicinal and Chemical Sciences 4(1), 107-144.
47.
Obakiro, S.B., Kiprop, A., Kigondu, E., KO’wino, I., Odero, M.P., Manyim, S., Omara, T., Owor, R.O., Gavamukulya, Y., Bunalema, L., & Namukobe, J. (2021) Traditional medicinal uses, phytoconstituents, bioactivities and toxicities of Erythrina abyssinica Lam. ex DC. (Fabaceae): a systematic review. Evidence-Based Complementary and Alternative Medicine 2021, 5513484.
48.
Obakiro, S.B., Kiprop, A., KO’wino, I., Kigondu, E., Odero, M.P., Omara, T., & Bunalema, L. (2020). Ethnobotany, ethnopharmacology and phytochemistry of traditional medicinal plants used in the management of symptoms of tuberculosis in East Africa: a systematic review. Tropical Medicine and Health 48(1), 68.
49.
Omara, T.* (2020) Antimalarial plants used across Kenyan communities. Evidence-Based Complementary and Alternative Medicine 2020, 4538602.
50.
Nteziyaremye, P., & Omara, T.* (2020) Bioaccumulation of priority trace metals in edible muscles of West African lung fish (Protopterus annectens Owen, 1839) from Nyabarongo river, Rwanda. Cogent Environmental Science 6(1), 1779557.
51.
Omara, T.* (2020) Plants used in antivenom therapy in rural Kenya: Ethnobotany and future perspectives. Journal of Toxicology, 2020, 1828521.
52.
Omara, T.*, Kiprop, A. K., Ramkat, R.C., Cherutoi, J., Kagoya, S., Nyangena, D.M., Tebo, T.A., Nteziyaremye, P., Karanja, L. N., Jepchirchir, A., Maiyo, A., Kiptui, B. J., Mbabazi, I., Nakiguli, C. K., Nakabuye, B. V., & Koske, M. C. (2020) Medicinal plants used in traditional management of cancer in Uganda: Ethnobotanical surveys, phytochemistry and anticancer studies. Evidence-Based Complementary and Alternative Medicine 2020, 3529081.
53.
Omara, T.*, Kagoya, S., Openy, A., Omute, T., Ssebulime, S., Kiplagat, K. M., & Bongomin, O. (2020) Antivenin plants used for treatment of snakebites in Uganda: Ethnobotanical reports and pharmacological evidences. Tropical Medicine and Health 48(1), 6.
54.
Angiro, C., Abila, P.P. & Omara, T.* (2020) Effects of industrial effluents on the quality of water in Namanve stream, Kampala Industrial and Business Park, Uganda. BMC Research Notes, 13(1), 220.
55.
Mbeche, S.M.*, & Omara, T.* (2020) Effects of alkali treatment on mechanical and thermal properties of sisal/cattail polyester commingled composites. PeerJ Material Science Chemistry 2, 5.
56.
Omara, T.*, Nteziyaremye, P., Akaganyira, S., Opio, D.W., Karanja, L. N., Nyangena, D. M., Kiptui, B. J., Ogwang, R., Epiaka, S.M., Jepchirchir, A., & Maiyo, A. (2020) Physicochemical quality of water and health risks associated with consumption of African lung fish (Protopterus annectens) from Nyabarongo and Nyabugogo rivers, Rwanda. BMC Research Notes 13(1), 66.
57.
Omara, T.*, Nassazi, W., Omute, T., Awath, A., Laker, F., Kalukusu, R., Musau, B.,
8
Nakabuye, B. V., Kagoya, S., Otim, G., & Adupa, E. (
2020) Aflatoxins in Uganda: An encyclopedic review of the etiology, epidemiology, detection, quantification, exposure assessment, reduction and control. International Journal of Microbiology 2020, 4723612.
58.
Omara, T.*, Karungi, S., Kalukusu, R., Nakabuye, B.V., Kagoya, S., & Musau, B. (2019). Mercuric pollution of surface water, superficial sediments, Nile tilapia (Oreochromis nilotica Linnaeus 1758 [Cichlidae]) and yams (Dioscorea alata) in auriferous areas of Namukombe stream, Syanyonja, Busia, Uganda. PeerJ 7, e7919.
Mentorship / Supervision
(a) Co-supervised two (2) undergraduate students with Dr. Patrick Ssebugere to project
completion:
1. NAMIRIMU Gloria (21/U/20371/PS)
Occurrence and identification of microplastics in tap water from different areas of Kampala, Uganda [Graduated January 2025]
2. ELIOT Precious (21/U/1104)
Adsorption of methylene blue dye from textile waste water using activated biochar obtained from cow manure [Graduated January 2025]
(b) Mentored junior staff and postgraduate students on protocols of microplastic analysis in water and biota using stereomicroscopy and μATR-FTIR spectroscopy.
(a) Co-supervised two (2) undergraduate students with Dr. Patrick Ssebugere to project
completion:
1. NAMIRIMU Gloria (21/U/20371/PS)
Occurrence and identification of microplastics in tap water from different areas of Kampala, Uganda [Graduated January 2025]
2. ELIOT Precious (21/U/1104)
Adsorption of methylene blue dye from textile waste water using activated biochar obtained from cow manure [Graduated January 2025]
(b) Mentored junior staff and postgraduate students on protocols of microplastic analysis in water and biota using stereomicroscopy and μATR-FTIR spectroscopy.