Dr. Mathew Piero Ngugi

dr-mathew-march-2017


Title/Qualifications: Ph D
Department/Unit/Section:  Biochemistry & Biotechnology
Contact Address: P.O. Box 1750 – 60100 Embu
Email: This email address is being protected from spambots. You need JavaScript enabled to view it. /piero.mathew@ku.ac.ke
Cell phone:0710-349485 / 0724-586841/0732-264557
Position: Lecturer
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PUBLICATIONS

  1. Kariuki DM, Gaichu DM, Mburu DN and Ngugi MP (2017). In vivo Safety of Dichloromethane-Methanolic Extract of Allium sativum in Normal Mice. Journal of Drug Metabolism & Toxicology, 8 (1): 223. doi:10.4172/2157-7609.1000223
  2. Ouko RO, Koech SC, Arika WM, Njagi SM, Oduor RO and Ngugi MP (2017). Bioefficacy of Organic Extracts of Ocimum basilicum against Sitophilus zeamais. Entomology, Ornithology & Herpetology, 6 (1): 190. doi: 10.4172/2161-0983.1000190
  3. Koech SC, Sindani AV, Maoga JB, Ouko RO, Njagi NM and Ngugi MP (2017). Anti-pyretic Potential of Dichloromethanolic Root Extract of Clutia abyssinica in Wistar Albino Rats. Medicinal and Aromatic Plants (Los Angel) 6: 281. doi: 10.4172/2167- 0412.1000281
  4. Musila MN, Ngai DN, Mbiri JW, Njagi SM, Mbinda WM and Ngugi MP (2017). Acute and Sub-Chronic Oral Toxicity Study of Methanolic Extract of Caesalpinia volkensii (Harms). Journal of Drug Metabolism and Toxicology, 8 (1): 222. doi:10.4172/2157-7609.1000222.
  5. Mbiri WJ, Kasili S, Kisangau DP, Musila NM, Piero NM and Mbinda WM (2016) Antinociceptive Properties of Methanolic Bark Extracts of Terminalia brownii in Wistar Rats. Journal of Pain and Relief, 5 (5): 261. doi:10.4172/2167-0846.1000261
  6. Kamau JK, Nthiga PM, Mwonjoria JK, Ngeranwa JJN, Ngugi MP (2016). Anti-Inflammatory Activity of Methanolic Leaf Extract of Kigelia Africana (Lam.) Benth and Stem Bark Extract of Acacia Hockii De Wild in Mice. Journal of Developing Drugs, 5(2):156. doi:10.4172/2329-6631.1000156. 
  7. Nthiga PM, Kamau JK, Safari VZ, Mwonjoria JK, Mburu DN and Ngugi MP (2016). Antipyretic Potential of Methanolic Stem Bark Extracts of Harrisonia Abyssinica Oliv and Landolphia Buchananii (Hallier F.) Stapf in Wistar Rats.Journal of Applied Pharmacy, 8(3):227. doi:10.4172/1920-4159.1000227. 
  8. Mbiri J. Wanja, Sichangi Kasili, Kisangau Patrick, Wilton Mbinda, Ngugi M. Piero (2016). Anti-inflammatory Properties of Methanolic Bark Extracts of Terminalia brownii in Wistar Albino RatsInternational Journal of Current Pharmaceutical Research, 8(3):100-104. ISSN- 0975-7066. 
  9. Njogu SM, Arika WM, Nyamai DW, Ngugi MP, Machocho AK, Ngeranwa JJN and Njagi ENM (2016). Hypoglycemic Effect of Aqueous and Ethyl Acetate Leaf Extract of Maytenus putterkloides in Alloxan Induced Diabetic Mice. Journal of Diabetes and Metabolism, 7(6):685. doi:10.4172/2155-6156.1000685. 
  10. Kamau JK, Nthiga PM, Safari VC, Njagi SM, Mwonjoria JK, Ngugi MP and Ngeranwa JJN (2016).Antipyretic Properties of Methanol Stem Bark Extracts of Acacia hockii De Wild and Kigelia africana (Lam) Benth in Wistar Rats. Journal of Pharmacognosy & Natural Products, 2(3):118. doi:10.4172/2472-0992.1000118 
  11. Nthiga PM, Kamau JK, Safari VZ, Ngugi MP and Mburu DN (2016). Antinociceptive Activity of Methanolic Stem Bark Extracts of Harrisonia Abyssinica Oliv and Landolphia Buchananii (Hallier F.) Stapf in Mice Models.  Journal of Pain and Relief, 5(4): 253.doi:10.4172/2167-0846.1000253 
  12. Miccah S. Seth, Leta T. Bedada, Steven M. Runo, Mathew P. Ngugi, Revel Iyer, Jennifer A. Thomson, Emmarold E. Mneney and Richard O. Oduor (2016). Drought tolerance in transgenic tropical maize (Zea mays L.) by heterologous expression of Peroxiredoxin 2 gene - XvPrx2. African Journal of Biotechnology, 15(25):1350-1362. doi:10.5897/AJB2016.15371. ISSN: 1684-5315.
  13. Ogola PE, Arika WM, Nyamai DW, Osano KO, Rachuonyo HO, Wambani JR, Lagat RC, Njagi SM1, Mumenya SW, Koteng’ A, Ngugi MP and Oduor RO (2016). Determination of Background Ionizing Radiations in Selected Buildings in Nairobi County, Kenya.Nuclear Medicine & Radiation Therapy, 7(3):289. doi:10.4172/2155-9619.1000289. 
  14. Njagi SM, Lagat RC, Mawia AM, Arika WM, Wambua FK, Ouko RO, Ogola PE, Kamau JK, Nthiga PM, Musila MN, Mwitari PG and Ngugi MP (2016). In Vitro Antiproliferative Activity of Aqueous Root Bark Extract of Cassia abbreviata (Holmes) Brenan. Journal of Cancer Science & Therapy, 8(5): 114-121. doi:10.4172/1948-5956.1000402.
  15. Thomas M Musyoka, Nyamai W Dorothy, Arika M Wycliffe, Kelvin K Juma, Mutua D Nzioka, David Maina, Stanely K Waithaka, Mathew P. Ngugi, George O Orinda, Geoffrey M Karau, Eliud NM Njagi (2016). In Vivo Antianaemic Effect and Safety of Aqueous Extracts of Erythrina abyssinica and Zanthoxylum usambarensis in Mice Models. Journal of Hematology & Thromboembolic Diseases, 4 (3): 242. doi:10.4172/2329-8790.1000242
  16. Mugweru FG, Nyamai DW, Arika MW, Ngugi MP, Gathumbi PK, Njagi ENM and Ngeranwa JJN (2016). Antimicrobial Activity of Aqueous Extracts of Maytemus putterlickoides, Senna spectabilis and Olinia usambarensis on Selected Diarrhea-Causing Bacteria. Journal of Bacteriology and Parasitology 7(2): 270. doi: 10.4172/2155-9597.1000270. 
  17. Obel H. Jorum, Alex K. Machocho and Ngugi M. Piero (2016). Effects of Dichloromethane-Methanolic Leaf Extracts of Carissa edulis (Forssk) Vahl on Serum Lipid Profiles in Normal Rat Models. Journal of Hypertension, 5(2):217. doi:10.4172/2167-1095.1000217.
  18. EN Marigi, JO Masanga, TL Munga, LS Karanja, MP Ngugi, WM Thagana, D Kirubi, M Mwangi, CM Githunguri, WM Muiru, DW Miano, AE Alakonya and RO Oduor (2016). Optimisation of a Somatic Embryogenesis and Transformation Protocol for Farmer-Preferred Cassava Cultivars in Kenya. African Crop Science Journal, 24 (s1): 35–44. ISSN 1021-9730/2016. doi:  http://dx.doi.org/10.4314/acsj.v24i1.4S
  19. Njoroge W Anne, Ngugi M Piero, Aliyu Umar, Matheri Felix, Gitahi S Maina, Mwangi B Maina, Njagi J Muriithi, Mworia J Kiambi and Ngure G Mutero (2016).In Vitro Anti-Acetylcholinesterase Activity of Dichloromethane Leaf Extracts of Carphalea glaucescens in Chilo partellus Larvae. Biochemistry and Analytical Biochemistry, 5(2):264. doi:10.4172/2161-1009.1000264 
  20. Arika WM, Nyamai DW, Agyirifo DS, Ngugi MP and Njagi ENM (2016).In Vivo Antidiabetic Effect of Aqueous Leaf Extract of Azardirachta indica, A. juss in Alloxan Induced Diabetic Mice. Journal of Diabetic Complications & Medicine, 1(2):106. doi:10.4172/jdcm.1000.106 
  21. Safari VZ, Kamau JK, Nthiga PM, Ngugi MP, Orinda G and Njagi EM (2016). Antipyretic, Antiinflammatory and Antinociceptive Activities of Aqueous Bark Extract of Acacia Nilotica (L.) Delile in Albino Mice. Pain Management and Medicine, 2(2): 113. doi:10.4172/jpmme.1000113. 
  22. Joan M. Njagi, Daniel N. Akunga, Martin M. Njagi, Mathew P. Ngugi, Eliud M.N. Njagi (2016). Heavy Metal Pollution of the Environment by Dumpsites: A Case of Kadhodeki Dumpsite. International Journal of Life Sciences and Scientific Research, 2(2):191-197. ISSN: 2455-1716.
  23. Osano KO, Nyamai DW, Ogola PE, Ouko RO, Arika WM, Bina MW, Mburu DN and Ngugi MP (2016). Evaluation of In Vivo Toxicity of Dichloromethane: Methanolic Leaf Extracts of Prosopis juliflora in Female Wistar Albino Rats. Journal of Drug Metabolism and Toxicology, 7 (1): 200. doi:10.4172/2157-7609.1000200.
  24. Safari VZ, Ngugi MP, Orinda G, Njagi EM (2016). Anti-pyretic, Anti-inflammatory and Analgesic Activities of Aqueous Stem Extract of Cynanchum Viminale (L.) in Albino Mice. Medicinal and Aromatic Plants, 5(2).236. doi:10.4172/2167-0412.1000236
  25. Safari VZ, Ngugi MP, Orinda G and Njagi EM (2016).  Anti-pyretic, Anti-inflammatory and Analgesic Activities of Aqueous Leaf Extract of Urtica Dioica (L.) in Albino Mice. Medicinal and Aromatic Plants, 5(2):237. doi:10.4172/2167-0412.1000237. 
  26. Obel H Jorum, Ngugi M Piero and Alex K Machocho (2016).Haematological Effects of Dichloromethane-Methanolic Leaf Extracts of Carissa edulis (Forssk.) Vahl in Normal Rat Models. Journal of Hematology & Thromboembolic Diseases, 4(1):232. ISSN:2329-8790. 
  27. Arika WM, Rachuonyo HO, Muchori AN, Lagat RC, Mawia AM, Wambani JR, Wambua FK, Nyamai DW, Ogola PE, Kiboi NG, Ouko RO, Njagi SM , Muruthi CW, Ngugi MP andNjagi ENM (2016).Hypoglycemic Effect of Ocimum  lamiifolium in Alloxan-Induced Diabetic Mice. Medicinal and Aromatic Plants, 5(2): 228. doi:10.4172/2167-0412.1000228. 
  28. Arika WM, Ogola PE, Nyamai DW, Mawia AM, Wambua FK, Kiboi NG, Wambani JR, Njagi SM, Rachuonyo HO, Emmah KO, Lagat RC, Muruthi CW, Abdirahman YA, Agyirifo DS, Ouko RO, Ngugi MP and Njagi ENM (2016). Mineral Elements Content of Selected Kenyan Antidiabetic Medicinal Plants.  Advanced Techniques in Biology and Medicine, 4(1): 160-165. doi: 10.4172/2379-1764.1000160 
  29. Aliyu Umar, Ngugi M Piero, Allan J Mgutu, Njoroge W Ann, Gitahi S Maina, Mwangi B Maina, Njagi J Muriithi, Mworia J Kiambi, Ngure G Mutero and Mwonjoria K John (2015). BioEfficacy of Aqueous Crude Fruit Sap Extract of Solanum incanum against Green Peach Aphids Myzus persicae Sulzer (Homoptera: Aphididae). Entomology, Ornithology & Herpetology, 5(1): 169-174. doi:10.4172/2161-0983.1000169
  30. Arika WM, Ogola PE, Abdirahman YA, Mawia AM, Wambua FK, Nyamai DW, Kiboi NG, Wambani JR, Njagi SM, Rachuonyo HO,Muchori AN, Lagat RC, Agyirifo DS, Ngugi MP and Njagi ENM (2015). In Vivo Safety of Aqueous Leaf Extract of Lippia javanica in Mice Models. Biochemistry and Physiology, 5(1): 191-200. doi: 10.4172/2168-9652.1000191
  31. Arika WM, Abdirahman YA, Mawia MA, Wambua KF, Nyamai DM, Ogola PE, Kiboi NG, Nyandoro HO, Agyirifo DS, Ngugi MP and Njagi ENM (2015). In Vivo  Antidiabetic Activity of the Aqueous Leaf Extract of Croton macrostachyus in Alloxan Induced Diabetic Mice. Pharmaceutica Analytica Acta 6 (11): 447-452. doi:10.4172/21532435.1000447.
  32. Kimeu B Mwonga, Njagi EN Mwaniki, Yole S Dorcas and Ngugi M Piero (2015). Molluscicidal Effects of Aqueous Extracts of Selected Medicinal Plants from Makueni County, Kenya.  Pharmaceutica Analytica Acta 6 (11): 445-450. doi:10.4172/21532435.1000445
  33. Mworia JK, Gitahi SM, Juma KK, Njagi JM, Mwangi BM, Aliyu U, Njoroge WA, Mwonjoria KJ, Nyamai DW, Ngugi MP and Ngeranwa JJN (2015). Analgesic Potential of Acetone Leaf Extract of Caesalpinia volkensii Harms in Mice. Pharmaceutical Analytica Acta, 6 (11): 450-455. doi:10.4172/21532435.1000450 
  34. Wambua F Kioko, Musyoki A Mawia, Ngugi M Piero, Karau G Muriira, Nyamai D Wavinya, Lagat R Chemutai, Matheri Felix, Arika W Makori1 and Njagi S Mwenda (2015).Phenotypic Characterization on Selected Kenyan and Tanzanian Rice (Oryza sativa L) Populations Based on Grain Morphological Traits. Journal Rice Research, 3: 155-161. doi:10.4172/2375-4338.1000155.
  35. Arika WM, Abdirahman YA, Mawia MM, Wambua KF, Nyamai DM, Ogola PE, Kiboi NG, Nyandoro HO, Njagi SM, Agyirifo DS, Ngugi MP and Njagi ENM (2015).Hypoglycemic Effect of Lippia javanica in Alloxan Induced Diabetic Mice. Journal of Diabetes and Metabolism, 6 (11): 624-630. doi:10.4172/2155-6156.1000624.
  36. Aliyu Umar, Allan J Mgutu, Ngugi M Piero, Njoroge W Ann, Gitahi S Maina, Mwangi B Maina, Njagi J Muriithi, Mworia J Kiambi, Ngure G Mutero and Mwonjoria K John (2015).In Vitro Anti-Acetylcholinesterase Activity of Crude Fruits Sap Extract of Solanum incanum in Green Peach Aphids. Journal of  Developing Drugs, 4 (5): 142-145. doi:10.4172/2329-6631.1000142.
  37. Nyamai DW, Mawia AM, Wambua FK, Njoroge A, Matheri F, Lagat R, Kiambi J, Ogola P, Arika W, Cheseto X, King’ori E, Ramni J,  Ngugi MP, Muchugi A, Ng’ang’a M, Burugu MW (2015).Phytochemical Profile of Prunus africana Stem Bark from Kenya. Journal of Pharmacognosy and Natural  Products, 1(1):110-118. doi: 10.4172/jpnp.1000110.
  38. Njagi J Muriithi, Gitahi S Maina, Njagi M Mugendi, Mwangi B Maina, Mworia J Kiambi, Juma K Kelvin, Aliyu Umar, Mwonjoria K John, Njoroge W Ann, Abdirahman YA, Ngugi M Piero and Njagi NM Eliud (2015). Determination of Hematological Effects of Methanolic Leaf Extract of Solanum. incanum in Normal Mice. Pharmaceutica Analytica Acta, 6 (10): 429-435. doi: 10.4172/21532435.1000429
  39. Mworia JK, Gitahi SM, Juma KK, Njagi JM, Mwangi BM, Aliyu U, Njoroge WA, Mwonjoria J, Mawia AM, Nyamai DW, Ngugi MP and Ngeranwa JJN (2015).Antinociceptive Activities of Acetone Leaf Extracts of Carissa Spinarum in Mice. Medicinal & Aromatic Plants, S1: 006-010. doi:10.4172/2167-0412.S1-006.
  40. Wambua F Kioko, Mawia A Musyoki, Ngugi M Piero, Karau G Muriira, Nyamai D Wavinya, Lagat Rose, Matheri Felix and Ngari L Ngithi (2015). Genetic Diversity Studies on Selected Rice (Oryza sativa L) Populations Based on Aroma and Cooked Kernel Elongation. Journal of Phylogenetics and Evolutionary Biology, 3(4): 158-164. doi:10.4172/2329-9002.1000158
  41. Nyamai DW, Mawia AM1, Wambua FK, Abdirahman YA, Osano K, Lagat R, Mumbi B, Arika W, Juma KK, Anyango E, Mulugeta M, Ngugi MP, Muchugi A, Ng’ang’a M, Burugu MW and Ramni Jamnadass (2015). Growth Performance of Domesticated Prunus africana Population in Muguga, Kiambu County, Kenya. Biochemistry and Physiology 4 (4): 185-190. doi: 10.4172/2168-9652.1000185.
  42. Abdirahman YA, Juma KK, Nyamai DW, Njagi JM, Agyirifo DS, Ngugi MP, Gathumbi PK, Ngeranwa JJN and Njagi ENM (2015). In-Vivo Anti-hyperglycemic Activity and Safety of The Aqueous Stem Bark Extracts of Aloe secundiflora.  Medicinal and Aromatic Plants, S1: 003-007. doi:10.4172/2167-0412.S1-003
  43. Mawia A. Musyoki, Wambua F. Kioko, Ngugi P. Mathew, Agyirifo Daniel, Karau G. Muriira, Nyamai D. Wavinya, Matheri Felix, Lagat R. Chemutai, Njagi S. Mwenda, Mworia J. Kiambi and Ngari L. Ngithi (2015). Genetic Diversity Studies on Selected Rice (Oryza Sativa L) Genotypes Based on Amylose Content and Gelatinization Temperature. Advances in Crop Science and Biotechnology, 3(5):193-199. doi:10.4172/2329-8863.1000193.
  44. Mawia Musyoki A, Wambua Kioko F, Agyirifo Daniel, Nyamai Wavinya D, Matheri Felix, Langat Chemtai R, Njagi Mwenda S, Arika Arika W1, Gaichu Muthee D, Ngari Ngithi L, Ngugi Piero M and Karau Muriira G (2015). Phenotypic Diversity Studies on Selected Kenyan and Tanzanian Rice (Oryza sativa L) Genotypes Based on Grain and Kernel Traits.  Journal of Rice Research, 3(4):150-154. doi:10.4172/2375-4338.1000150
  45. Abdirahman YA, Juma KK, Mukundi MJ, Gitahi SM, Agyirifo DS, Ngugi PM, Gathumbi PK, Ngeranwa JJN and Njagi ENM (2015). The Hypoglycemic Activity and Safety of Aqueous Stem Bark Extracts of Acacia nilotica. Journal of Drug Metabolism and Toxicology, 6(4):189-198. doi:10.4172/2157-7609.1000189
  46. Abdirahman YA, Juma KK, Makori WA, Agyirifo DS, Ngugi MP, Gathumbi PK, Ngeranwa JJN and Njagi ENM (2015). Blood Glucose Lowering Effect and Safety of the Aqueous Leaf Extracts of Zanha Africana. Pharmaceutica Analytica Acta, 6 (9):422-431. doi:10.4172/21532435.1000422
  47. Ngugi M Piero, Murugi N Joan, Oduor O Richard, Mgutu A Jalemba, Ombori R Omwoyo and Cheruiyot R Chelule (2015). Determination of Cyanogenic Compounds Content in Transgenic Acyanogenic Kenyan Cassava (Manihot esculenta Crantz) Genotypes: Linking Molecular Analysis to Biochemical Analysis. Analytical and Bioanalytical Techniques, 6(5):264-271. doi:10.4172/2155-9872.1000264
  48. Abdirahman YA, Juma KK, Mukundi MJ, Gitahi SM, Agyirifo DS, Ngugi MP, Gathumbi PK, Ngeranwa JJN and Njagi ENM (2015). In-Vivo Antidiabetic Activity and Safety of the Aqueous Stem Bark Extract of Kleinia squarrosa. Diabetes and Metabolism, 6(9):601-612. doi:10.4172/2155-6156.1000601
  49. Piero NM, Murugi NJ, Okoth OR, Ombori OR, Jalemba MA and Chelule CR (2015). RNAi-Mediated Downregulation of Cyano-Glycoside Biosynthesis in
    Kenyan Cassava (Manihot esculenta Crantz) Genotypes.
    Plant Biochemistry and Physiology, 3 (3):148-153. doi:10.4172/2329-9029.1000148
  50. Juma KK, Fulakeza RMJ, Ngeranwa JN, Ngugi MP and Mburu ND (2015). Evidence Based Phytopharmacological Potential of Herbal Extracts in Post-Ingestion Management of Mycotoxins in Animal Models. Clinical Toxicology, 5(4):254-262. doi:10.4172/2161-0495.1000254
  51. Mwangi B. Maina, Gitahi S. Maina, Njagi J. Muriithi, Mworia J. Kiambi, Aliyu Umar, Mwonjoria K. John, Ngure G. Mutero, Juma K. Kelvin, Njoroge W. Ann, Mburu N. David and Ngugi M. Piero (2015). Antinociceptive Properties of Dichloromethane:Methanolic Leaf Extracts of Caesalpinia volkensii and Maytenus obscura in Animal Models. Journal of Pain and Relief, 4(4):191-196. doi:10.4172/2167-0846.1000191.
  52. Ngugi M Piero, Njagi NM Eliud, Kimuni N Susan, Orinda O George, Njagi J Murugi, Maina David, Agyirifo D Sakyi, Gathumbi K Peter, Kinge W Stanley and Ngeranwa JN Joseph (2015). In Vivo Antidiabetic Activity and Safety in Rats of Cissampelos pareira Traditionally Used in The Management of Diabetes Mellitus In Embu County, Kenya. Journal of Drug Metabolism and Toxicology, 6(3):184-194. doi:10.4172/2157- 7609.1000184.
  53. Njagi J Muriithi, Gitahi S Maina, Mwangi B Maina, Mworia J Kiambi, Juma K Kelvin, Aliyu Umar, Mwonjoria K John, Njoroge W Ann, Ngugi M Piero and Njagi NM Eliud (2015). Determination of Hematological Effects of Methanolic Leaf Extract of Vernonia lasiopus in Normal Mice. Blood and Lymph, 5(3):139-144. doi:10.4172/2165-7831.1000139.
  54. Mwangi B Maina, Gitahi S Maina, Njagi J Muriithi1, Mworia J Kiambi, Aliyu Umar, Njoroge W Ann, Mwonjoria K John, Ngugi M Piero, Mburu N David (2015). Antiinflammatory Properties of Dichloromethane: Methanolic Leaf Extracts of Caesalpinia Volkensii and Maytenus obscura in Animal Models. International Journal of Current Pharmaceutical Research, 7(3):83-87.
  55. Mwangi J Mukundi, Njagi E N Mwaniki, Ngugi M Piero, Njagi J Murugi, Agyirifo S Daniel, Gathumbi K Peter and Muchugi N Alice (2015). In Vivo Antidiabetic Effects of Aqueous Leaf Extracts of Rhoicissus tridentata in Alloxan Induced Diabetic Mice.  Developing Drugs, 4(3):131-135.doi:10.4172/2329-6631.1000131.
  56. Mwangi J Mukundi, Ngugi M Piero, Njagi EN Mwaniki, Njagi J Murugi, Agyirifo S Daniel, Gathumbi K Peter and Muchugi N Alice (2015). Antidiabetic Effects of Aqueous Leaf Extracts of Acacia nilotica in Alloxan Induced Diabetic Mice. Diabetes and Metabolism, 6(7):568-573. doi: 10.4172/2155-6156.1000568
  57. Ngugi MP, Oduor RO, Omwoyo RO, Njagi JM, Mgutu AJ and Cheruiyot RC (2015). Regeneration of Kenyan Cassava (Manihot esculenta Crantz) Genotypes. Plant Biochemistry and Physiology, 3: 147. doi:10.4172/2329-9029.1000147.
  58. Gitahi S. Maina, Juma K. Kelvin, Mwangi B. Maina, Njagi J. Muriithi, Mworia J. Kiambi, Aliyu Umar, Mwonjoria K. John, Njoroge W. Ann, Mburu N. David, Ngugi M. Piero (2015). Antinociceptive Properties of Dichloromethane:Methanolic Leaf and Root Bark Extracts of Carissa edulis in Rats. The Journal of Phytopharmacology, 4(2): 106-112
  59. Gitahi S Maina, Mwangi B Maina, Njagi J Muriithi, Mworia J Kiambi, Juma K Kelvin, Aliyu Umar, Mwonjoria K John, Njoroge W Ann, Ngugi M Piero, Mburu N David (2015).  Antipyretic Properties of Dichloromethane:Methanolic Leaf and Root Bark Extracts of Carissa edulis in Rats. Asian Journal of Biomedical and Pharmaceutical Sciences, 5(43): 12-20. doi: 10.15272/ajbps.v5i43.681.
  60. Ngugi M Piero, Kimuni NS, Ngeranwa NJ, Orinda OG, Njagi MJ, Maina D, Agyirifo SD, Gathumbi K, King’e WS and Njagi Eliud EN (2015). Antidiabetic and Safety of Lantana rhodesiensis in Alloxan-induced Diabetic
    Rats.
     Developing Drugs, 4: 129. doi:10.4172/2329-6631.1000129.
  61. Joan Murugi Njagi, Mathew Piero Ngugi, Cromwell Mwiti Kibiti, Joseph Ngeranwa, Wilson Njue, Peter Gathumbi and Eliud Njagi (2015). Hypoglycemic effect of Helichrysum odoratissimum in Alloxan-induced Diabetic Mice. Phytopharmacology, 4:1-6.
  62. Marigi E, Ngugi MP, Thagana W, Muiru W, Munga TL, Alakonya A and Oduor RO (2014). Establishing a platform for routine genetic transformation of cassava for enhanced tolerance to cassava mosaic disease and cassava brown streak diseases. CRCoE Review (3): 23-26
  63. Njagi JM, Ireri AM, Njagi ENM, Akunga D, Afullo ATO, Ngugi MP, Mwanzo I, and Karugu NI, (2013). Assessment of Knowledge, Attitude and Perceptions of Village Residents on the Health Risks Posed by Kadhodeki Dumpsite in Nairobi, Kenya. World Environment, 3(5):155-160. doi: 10.5923/j.env.20130305.02.
  64. Njagi JM,  Piero MN, Ngeranwa JJN, Njagi ENM, Kibiti CM, Njue WM, Maina D, Gathumbi PK, (2012).Assessment of Antidiabetic Potential of Ficus Sycomorus on Alloxan-induced Diabetic Mice. International Journal of Diabetes Research, 1(4): 47-51. DOI: 10.5923/j.diabetes.20120104.01
  65. Anthony M Ireri, Dinah W Tumuti, Philomena N Mathuvi, Joan M Njagi, Ngugi M Piero, Haniel N Gatumu, Amos N Njagi and Njagi I Karugu (2012).Sources of VCT Information and Reasons for Use or Non Use of VCT Services by Young People in Selected Rural Locations in Kenya. International Journal of Social Science Tomorrow, 1(2):1-8.
  66. Anthony M Ireri, Philomena N Mathuvi, Amos M Njagi, Eric G Mwenda, Haniel N Gatumu, Joan M Njagi, Mathew N Piero, Njagi I Karugu (2012). Assessing Young Peoples’ Momentary Thoughts About Sex: A Proposal of the Sex Envelope Game. International Journal of Applied Psychology, 2(3): 31-35
  67. Njagi Joan Murugi, Ngugi Mathew Piero, Kibiti Cromwell Mwiti, Ngeranwa Ngari Jeremiah Joseph, Njagi Eliud Nyaga Mwaniki, Mbiti Wilson Njue, Maina David and Gathumbi Peter Karuri (2012). Evaluation of Antidiabetic Effects of Kleinia Squarrosa on Alloxanized Diabetic Mice. Asian Journal of Biochemical and Pharmaceutical Research, 2(2):54-60.
  68. Njagi Joan Murugi, Ngugi Mathew Piero, Kibiti Cromwell Mwiti, Ngeranwa NJ Joseph, Njagi Eliud N Mwaniki, Njue M Wilson, Maina David and Gathumbi Peter Karuri (2012). Hypoglycemic Effects of Caesalpinia Volkensii on Alloxan-Induced Diabetic Mice. Asian Journal of Pharmaceutical and Clinical Research, 5(2):69-74.
  69. Ngugi M Piero, Njagi M Joan, Kibiti M Cromwell, Maina D,Ngeranwa JN Joseph,

Njagi NM Eliud, Njue M Wilson, Gathumbi K Peter (2012). Trace Elements Content of Selected Kenyan Antidiabetic Medicinal Plants.International Journal of Current Pharmaceutical Research, 4(3):39-42.

  1. Piero NM, Joan MN, Cromwell KM, Joseph NJ, Wilson NM, Daniel M, Peter KG and Eliud NMN (2011). Hypoglycemic Activity of Some Kenyan Plants Traditionally used to Manage Diabetes Mellitus in Eastern Province. Diabetes and Metabolism, 2:155. doi:10.4172/2155-6156.1000155.

CONFERENCE/SEMINAR PRESENTATIONS

  1. Matheri F, Mwangi M, Kirubi DT, Runo SM, Ngugi MP and Ng’ang’a DK (2015). Deformities and Genetic Variability of Sweet Yellow Passion Fruit (Passiflora edulis (Sims) var* flavicarpa) in Mbeere South Sub-County. 15th Workshop on Sustainable Horticultural Production in the Tropics. Kenya Agricultural and Livestock Research Organization, (KALRO), Kandara Centre & Horticultural Research Institute (HRI), Muranga County- Kenya. 1st -4th December, 2015. 
  2. Mwangi B. Maina, Gitahi S. Maina, Njagi J. Muriithi, Mworia J. Kiambi, Aliyu Umar, Njoroge W. Ann,Mwonjoria K. John, Ngugi M. Piero, Mburu N. David. Antinociceptive And Antiiflammatory Potential of Dichloromethane: Methanolic Leaf Extracts of Caesalpinia volkensii  and Maytenus obscura in Animal Models.  2nd Africa International Biotechnology and Biomedical conference at African Population Health Research Center (APHRC), Westlands, Nairobi, Kenya on 17th -18th September, 2015.  (Poster Presentation). 
  3. Gitahi S. Maina, Mwangi B. Maina, Njagi J. Muriithi, Mworia J. Kiambi, Juma K. Kelvin, Aliyu Umar, Mwonjoria K. John, Njoroge W. Ann, Ngugi M. Piero, Mburu N. David. Antipyretic Properties of Dichloromethane: Methanolic Leaf and Root Bark Extracts of Carissa edulis in Rats. 2nd Africa International Biotechnology and Biomedical conference at African Population Health Research Center (APHRC), Westlands, Nairobi, Kenya on 17th -18th September, 2015.  (Poster Presentation). 
  4. Ngugi, M.P., Machuka, J.S. and Cheruiyot R.C.Regeneration and RNAI-mediated down-regulation of cyanoglycoside biosynthesis in Cassava (Manihot esculenta Crantz). 27th Kenyatta University PhD Graduands seminars on 26th November, 2013.
  5. Njagi J.M, Ngugi M.P, Ngeranwa, J.J.N. and Njagi, E.N.M. Hypoglycemic effects of some Kenyan plants that traditionally manage Diabetes mellitus. 5th International Congress of the African Association of Physiological Sciences (AAPS) from 27th July-1st  August 2008.

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