Bio

Dr James. K. Gathumbi

Dr James K Gathumbi is a holder of PhD and MSc in Veterinary Pathology and Microbiology and Bachelor of Veterinary Medicine. He has taught Veterinary Pathology at both undergraduate and postgraduate levels for many years. His research interests include mycotoxicology and animal disease diagnosis and has published extensively in these areas.

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(Last updated: July 16, 2020)

Publications

2020

Gathumbi, JK, Kemboi DC, Antonissen G, Ochieng PE, Croubels S, Kangethe EK, Okoth S, Faas J, Lindahl JF.  2020.  A Review of the Impact of Mycotoxins on Dairy Cattle Health: Challenges for Food Safety and Dairy Production in Sub-Saharan Africa.. Toxins 2020. 12(4)

2019

Gathumbi, JK, Kimani PM, Yeri K, Wamunyokoli F, Mbakaya CFL.  2019.  The Effect of Aflatoxin B1 Serum Albumin Adducts Gathumbi J.K. CV – June, 2020 Level On Subjects With And Without Liver Disease In Kitui And Makueni Regions Of Lower Eastern Kenya.. Journal of Health, Medicine and Nursing. 4(5):12-22..
Gathumbi, JK, Kimani, J.M., Mutisya P, Kombe, Yeri, Wamunyokoli, Fred W, Mbakaya, Charles FL.  2019.  The Additive Effect of Hepatitis B Virus and Aflatoxin B1 to Liver Disease Burden: A Case Study in Kitui, Makueni and Machakos Counties, Kenya.. Journal of Health and Medical Sciences. 2(3):312-331..
Ntampaka, P, Nyaga PN, Gathumbi JK, Tukei M.  2019.  Rabies serosurvey of domestic dogs in Kigali City, Rwanda. Journal of Veterinary Medicine and Animal Health. 11:64-72.

2018

Mwihia, EW, Mbuthia PG, Gunnar SE, Gathumbi JK, Joyce GM, Mutoloki S, Waruiru RM, Mulei IR, Ludvig LJ.  2018.  Occurrence and Levels of Aflatoxins in Fish Feeds and Their Potential Effects on Fish in Nyeri, Kenya.
Gathumbi, JK, Ntampaka P, Nyaga PN, Tukei M.  2018.  Knowledge, attitudes and practices regarding rabies and its control among dog owners in Kigali city, Rwanda.. BioRxiv 2018. :500-595..

2017

Gathumbi, JK, Njue LG, Ombui JN, Kanja LW, Midiwo JO.  2017.  Identification of the Antimicrobial Compounds in Garlic Grown at Laikipia County.. International Journal of Agricultural Research and Review. 5(5):636-643..
Gathumbi, JK, Njue LG, Ombui JN, Kanja LW.  2017.  Assessment of Effectiveness of Garlic Extract from Laikipia County, on Shelf-Life of Meat. Journal of Agricultural Economics, Extension and Rural Development. 5(5):632-641..
Gathumbi, JK, Samson C, Wanjiru W, Christine B, Dorington O.  2017.  Prevalence of Aflatoxin Biosynthesis Genes According to Aflatoxin Levels in Maize of Different Varieties in Kenya.. Biotechnology Journal International.. 19(2):1-21.

2016

Gathumbi, JK, Samson C, Wanjiru, Wanyoike, Christine B, Dorington O.  2016.  Incidence of Aflatoxigenic Fungi and Aflatoxins in Maize Cultivated Under Rain-Fed and Irrigation Farming Systems in Kenya.. British Microbiology Research Journal. 11(6):1-11..

2015

J.K, G, J.N, Ombui, L.W, Njagi; L.C, Njue L. G, J.G N.  2015.  Evaluation of oral toxicity level of ethyl acetate extract, from garlic (allium sativum) in onorrh dawleys rats as per OECD guidelines. Journal of Food Science and Technology. 2(3):056-064..

2013

and 1. J. K. Kibugu, J.N. Makumi, KNGMMMJMJJN.  2013.  Effects of mycotoxins on the pathogenesis of Trypanosoma brucei rhodesiense in mice. . Joint Annual East African Network for Tryopanosomiasis/ Human African Trypanosomiasis Scientific Conference . , Panafric Hotel, Nairobi, Kenya
and Gathumbi, J.K., KKSG.  2013.  Traces of opiates in Shisha collected in Nairobi, Kenya., 10th to 13th Jun. National Conference on Alcohol and Drug Abuse. , Kasarani stadium

2012

Gathumbi J.K..  2012.  Overview of sampling and analytical methods for mycotoxins. , 28-29 Feb. COMESA Regional training on food safety/aflatoxin control for Regionally harmonized sampling and laboratory procedures.. , KEPHIS Hqs, Nairobi, Kenya.
Muthomi J.W., Mureithi B.K., C’wa GMGNJK.  2012.  Aspegillus species and Aflatoxin B1 in soil, Maize grain and flour samples from semi arid and humid regions of Kenya. international Journal of AgriScience. . 2(1):22-34.

2010

K, DRGATHUMBIJAMES.  2010.  John B. Githiori and Peter K Gathumbi (2010 ) Ethnoveterinary plants used in East Africa, In: Ethnobotanical Medicines of Animals Health Taylor & Francis Group LLC Boca Raton, USA (In Press). J Ethnopharmacol. 128: 424-432. : University of nairobi Abstract
Abstract in Bellamy, M. and B. Greenshields (eds), Issues in Agricultural Development: Sustainability and Cooperation. IAAE Occasional Paper No. 6. Dartmouth Publishing Co. Ltd, Aldershot.
K, DRGATHUMBIJAMES.  2010.  J.M. Nguta, J.M. Mbaria, D.W. Gakuya, P.K. Gathumbi, S.G. Kiama (2010). Antimalarial herbal remedies of Msambweni Kenya. J Ethnopharmacol. 128: 424-432. J Ethnopharmacol. 128: 424-432. : University of nairobi Abstract
Abstract in Bellamy, M. and B. Greenshields (eds), Issues in Agricultural Development: Sustainability and Cooperation. IAAE Occasional Paper No. 6. Dartmouth Publishing Co. Ltd, Aldershot.

2009

Kibugu J.K., Ngeranwa J.J., MGKMMMJNJK.  2009.  Aggravation of pathogenesis mediated by ochratoxin A in mice infected with Trypanosoma brucei rhodesiense. . Parasitology.. 136(3):273-281.
and Kibugu J.K., Makumi J.N., NKGMJJNJM.  2009.  Aggravation of pathogenesis mediated by aflatoxin B1 in mice infected with Trypanosoma brucei rhodesiense. Protozool. Res. 19. :24-33..

2008

and 4. Muthomi, J. W., RN’u NGGMJK.  2008.  Fusarium head blight in Kenya and possible management strategies. , 30th August. 10th International Fusarium Workshop and the Fusarium Genomics Workshop. , Alghero (Sardinia), Italy.
and Muthomi, J. W., NGC’waLNJK.  2008.  Mycotoxin-producing fungi and aflatoxin incidence in maize from Machakos, Kenya. , 10–14th November. 11th KARI Biennial Scientific Conference . , Nairobi, Kenya.
and Riungu G. M., J. W. Muthomi, NWGRDJM.  2008.  Management of Fusarium head blight of wheat and deoxynivalenol accumulation using antagonistic microorganisms.. Plant Pathology Journal . 7(1):13-19.
and Muthomi, J. W., RN’u NGWGMJK.  2008.  Head blight of wheat in Kenya and contamination of grain with mycotoxin producing Fusarium species. Journal of Plant Sciences . 3(1):52-60.
and Muthomi, J. W., N’u GMWJKJK.  2008.  The occurrence of Fusarium species and mycotoxins in Kenyan wheat.. Crop Protection . 27(8):1215-1219.
Mutungi, C., LAGOPSJ.  2008.  The fate of aflatoxins during processing of maize into Muthokoi – a traditional Kenyan food. Food Control . 19:714-721.
Riungu, GM, Muthomi JW, Narla RD, Gathumbi JK.  2008.  Fusarium head blight, DON and Fusarium contamination of Wheat and Maize.

2007

and Muthomi, J. W., HN’u GHJKJ.  2007.  Occurrence of Fusarium head blight – causing pathogens and mycotoxins in Kenyan wheat. Journal of Plant Diseases and Protection. 114(9)

2006

and Muthomi, J. W., HN’u GHJKJK.  2006.  Occurrence of Fusarium head blight-causing pathogens and mycotoxins in Kenyan wheat. , 2006 October . Tropentag.. , University of Bonn, Germany
and Muthomi, J. W., N’u GJKJJ.  2006.  Occurrence of wheat head blight-causing Fusarium species and associated trichothecene mycotoxins in Kenyan wheat., 13-17 November.. 10th KARI Biennial Scientific Conference. . , Nairobi, Kenya.
Gathumbi, JK, Ndung'u JK, Hindorf H, Muthomi JW.  2006.  Occurrence of Fusarium Head Blight–causing Pathogens and Mycotoxins in Kenyan Wheat. Abstract

Fusarium head blight is a devastating disease of wheat and other small-grain cereals, causing grain yield reduction, reduced quality and mycotoxin contamination. This study was conducted in two districts of Kenya to determine the incidence of Fusarium species and mycotoxin contamination in freshly harvested wheat. A survey was carried out during the 2004 growing season in different agro-climatic zones to determine the presence of Fusarium head blight and weather conditions during the critical stages of wheat growth. Fungal contamination was determined by isolation on agar media while mycotoxin analysis was by direct competitive ELISA. Fusarium head blight was reported by 81% of the farmers and wet conditions were prevalent during anthesis. The wheat grain samples were highly contaminated with fungi, especially Epicoccum, Alternaria and Fusarium species. The mean Fusarium infection rate varied from 13 to 18%, with the major head blight – causing species being F. poae, F. graminearum, F. equiseti, and F. avenaceum. Fusarium poae, F. chlamydosporum and F. oxysporum were the most prevalent in all the agro-ecological zones while F. graminearum was isolated in 6 out of the 9 agro-ecological zones. Most grain samples were contaminated with mycotoxins deoxynivalenol, T-2 toxin, zearalenone and aflatoxin B1. The most prevalent mycotoxin was T-2 (86% of the samples) followed by deoxynivalenol (59%), zearalenone (53%), and aflatoxin B1 (52%). The maximum mycotoxin concentration was 302mg/kg, 95.8mg/kg, 65.7mg/kg and 6.9mg/kg for deoxynivalenol, zearalenone, T-2 toxin and aflatoxin B1, respectively. The incidence and levels of the mycotoxins varied depending on the agro-ecological zone. Samples with high proportion of total Fusarium infection contained higher deoxynivalenol and T-2 toxin levels. Co-occurrence of deoxynivalenol, T-2 toxin and zearalenone was fund in up to 35% of the samples. The results suggested the presence of Fusarium head blight in Kenya and associated mycotoxin contamination, though at low but significant levels. The presence of the different mycotoxins, though at low levels, could pose chronic adverse health effects to human and livestock fed on the contaminated wheat products.

2005

J.K, G.  2005.  An overview of methods for detection of aflatoxins in foods. . WHO Experts group meeting on aflatoxins and health held.. , Brazzaville, Congo.
and Muthomi, J. W., N’u GC’wa.JKJKG.  2005.  Fusarium and mycotoxin contamination in freshly harvested wheat grain in Kenya. . African Crop Science.. :355-358..
K, DRGATHUMBIJAMES.  2005.  Gathumbi J.K (2005). An overview of methods for detection of aflatoxins in foods.. Proceedings of a WHO Experts group meeting on aflatoxins and health held on 24 . : University of nairobi Abstract
Abstract in Bellamy, M. and B. Greenshields (eds), Issues in Agricultural Development: Sustainability and Cooperation. IAAE Occasional Paper No. 6. Dartmouth Publishing Co. Ltd, Aldershot.

2004

K, DRGATHUMBIJAMES.  2004.  Mbugua, S.M. and Gathumbi J.K. (2004). The contamination of Kenyan lager beers Fusarium mycotoxins. Journal of The Institute of Brewing 110: 227-229.. Proceedings of a WHO Experts group meeting on aflatoxins and health held on 24 . : University of nairobi Abstract
Abstract in Bellamy, M. and B. Greenshields (eds), Issues in Agricultural Development: Sustainability and Cooperation. IAAE Occasional Paper No. 6. Dartmouth Publishing Co. Ltd, Aldershot.

2003

and Mutitu, E.W., NOGRDHJ.  2003.  Causes of ear rot of maize with mycotoxin implication in Eastern and Central Kenya. , October 12-17th. 6th Biennial Conference of the African Crop Science Society..
10. Gathumbi, JK.  2003.  Mycotoxin status in Kenya. , 26th February. Kenya Veterinary Association Nairobi Branch Scientific Conference . , Nairobi, Kenya
and T.A., GNJK.  2003.  An immunochemical survey of ochratoxin A in swine serum in central Kenya. Bulletin of Animal Health and Production in Africa . 51:64-66.
and Gathumbi, J. K., UNKMETA.  2003.  Application of immunoaffinity chromatography and enzyme-linked immunosorbent assay in the rapid detection of aflatoxin B1 in chicken liver. Poultry Science . 82:585-590.
status in Kenya., M.  2003.  Mycotoxin status in Kenya..
K, DRGATHUMBIJAMES.  2003.  Mutitu, E.W., Narla, R.D., Oduor, H. and Gathumbi J.K., (2003). Causes of ear rot of maize with mycotoxin implication in Eastern and Central Kenya.. 6th Biennial Conference of the African Crop Science Society held in on October 12-17th, 2003.. : University of nairobi Abstract
Abstract in Bellamy, M. and B. Greenshields (eds), Issues in Agricultural Development: Sustainability and Cooperation. IAAE Occasional Paper No. 6. Dartmouth Publishing Co. Ltd, Aldershot.

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