Bio

PROF. WARUI CHARLES NDERITU

Prof. Warui acquired B.V.M. University of Nairobi in 1980.In 1985 got Ph.D. Anatomy from University of Liverpool, U.K. in 1980 July - 1982, he was a Private practitioner, clinical work on small and large animals,1986 became Tutorial Fellow, Department of Veterinary Anatomy, UoN. 1986, March -1990 became Lecturer, 1990 March to date: Senior Lecturer, Department of Veterinary Anatomy,UoN.

Publications

2009

Alexander, RMN, Maloiy GMO, Ker RF, Jayes AS, Warui CN.  2009.  The role of tendon elasticity in the locomotion of the camel (Camelus dromedarius). Abstract

Several ofthe distal leg muscles ofcamels have very short or even rudimentary muscle fibres. This makes it possible to calculate the elastic extensions of tendons that occur in running, from the leg positions observed in films. A series of experiments have been performed for this purpose on the dissected legs of a camel. The initial conclusions derived from them are modified in the light of estimates of the forces that act on the tendons, and of measurements of the elastic properties of one tendon. Evidence for movement at the intertarsal and tarso-metatarsal joints. and the corresponding joints of the fore leg, is examined. The importance of the various tendons as elastic energy stores in running is assessed.

2000

Mwangi, DK, Warui CN.  2000.  Stereological analysis of the cerebellum of 24-day old rats with propylthiouracil-induced hypothyroidism. Abstract

Objective: To investigate the structural parameters of the developing cerebellum in propylthiouracil (PTU)-induced hypothyroidism during pre and postnatal stages in 24 day old rat pups. Method: Hypothyroidism was induced by feeding the breeding dams with PTU in water before and during copulation, pregnancy and lactation and the pups through the dams and ingestion in water. The number of control and treated dams and pups was five for each dam group and twelve and thirteen for pups respectively. The whole cerebellum was dissected out from the pups and processed routinely for histological examination and morphometric analysis. The total volumes of cerebellum, intracerebellar nuclei and cerebellar compartments were estimated by Cavalieri method. The mean numerical densities of neurones and neuroglia in the intracerebellar nuclei and Purkinje, granule and combined stellate and basket cells in cerebellar cortex were estimated using optical disector and the total numbers calculated as the product of the respective numerical densities and reference volumes. Results: The treated dams and pups had relatively lower mean body weights and etraiodothyronine (T4) serum concentrations. The serum Triiodothyronine (T3) was normal and lower in the treated dams and pups respectively. The differences in the respective body weights and dam T4 concentration in treated dams and pups were significant (p<0.05) compared to the control. Morphometric results showed that the mean volumes of cerebellum, intracerebellar nuclei, white matter, internal granular layer, molecular layer and the cerebellar cortex were lower and the differences between the values for each parameter were significant (p<0.05) in the treated pups compared to the control. The mean numerical densities of neurones and neuroglia in the intracerebellar nuclei (Nvne; Nvgl) and the combined stellate and basket cells (Nvsb) in the cerebellar cortex were relatively higher and the mean values for the respective numerical densitys of Purkinje and granule cells (Nvpu; Nvgr) were relatively lower in the treated pups compared to the control. On the other hand the treated pups had relatively lower values for the respective total numbers of neurons (Nne), neuroglia (Ngl), Purkinje (Npu), granule (Ngr) and the combined stellate and basket (Nsb) cells compared to the control. The differences between the respective values for Nvne, Nvsb, Npu, and Ngr, were significant (p<0.05). Conclusion: These results show that rat pups with PTU-induced hypothyroidism have relatively lower mean values for the structural parameters in the cerebellum when compared to control pups. This confirms that growth and maturation of the cerebellum is dependent on the maintenance of normal T4 and T3 levels, underscores the magnitude of the deviations from the normal and sheds light on possible structural limitations in the cerebellum in

1999

NDERITU, PROFWARUICHARLES.  1999.  Warui, C.N. (1999). Recent advances in avocado oil extraction biotechnology.. Proceedings of the first Biotechnology Workshop, Department of Chemistry, 7-11 June 1999..
NDERITU, PROFWARUICHARLES.  1999.  Skadhauge, E. and Dawson, A. (1999). Chapter 3, Physiology: In: Deeming, D.C.(ed.). The Ostrich: Biology, Production and Health. CAB International, London. Pp 51-80. Contributed original illustrations on the cloaca and salt gland of ostrich.. Proceedings of the first Biotechnology Workshop, Department of Chemistry, 7-11 June 1999..

1998

NDERITU, PROFWARUICHARLES.  1998.  Moilo, J., Mwangi, D.K., and Warui, C.N., (1998). Electrophysiological responses of female Anopheles gambiae sensu stricto (Diptera:Culcidae) to pyrethroid pesticides and host related semiochemicals. The Kenya Veterinary Journal, Vol 23, No. 3 pp 107-110.. Proceedings of the 2nd International ratile congress, Oudtshoorn South Africa 21 - 25 Sept. pp:88-90.
NDERITU, PROFWARUICHARLES.  1998.  Moilo, J., Mwangi, D.K., and Warui, C.N., (1998). Electrophysiological responses of female Anopheles gambiae sensu stricto (Diptera:Culcidae) to pyrethroid pesticides and host related semiochemicals. The Kenya Veterinary Journal, Vol 23, No. 3 pp 107-110.. Proceedings of the 2nd International ratile congress, Oudtshoorn South Africa 21 - 25 Sept. pp:88-90.
NDERITU, PROFWARUICHARLES.  1998.  Macharia, R.G., Warui, C.N. and Kisia, S.M. (1998). The effects of Decamethonium bromide induced paralysis on the skeletal development in the chick embryo. The Kenya Veterinary Journal, Vol 23,No.3 pp. 82-85.. Proceedings of the 2nd International ratile congress, Oudtshoorn South Africa 21 - 25 Sept. pp:88-90.
NDERITU, PROFWARUICHARLES.  1998.  Warui, C.N. and Skadhauge, E. (1998). Morphological and functional anatomy of the cloaca and terminal colon of the African Ostrich:. Proceedings of the 2nd International ratile congress, Oudtshoorn South Africa 21 - 25 Sept. pp:88-90.
NDERITU, PROFWARUICHARLES.  1998.  Warui, C.N., Macharia, R.G., Mwangi, D.K., Macheru, P.W. and Moilo, J. (1998). Observations on the morphology of the cloacal region of the African ostrich (Struthio camelus maasaicus). The Kenya Veterinary Journal, Vol. 23, No. 3 pp 71-74.. Proceedings of the 2nd International ratile congress, Oudtshoorn South Africa 21 - 25 Sept. pp:88-90.
NDERITU, PROFWARUICHARLES.  1998.  Macharia, R.G., Warui, C.N. and Macheru, P.W. (1998). Comparisons between fibre types cross-section areas and volume densities in the pectoralis muscle of the fruit bat and similar sized species of flying birds. The Kenya Veterinary Journal, Vol; 23 No. 3. Proceedings of the 2nd International ratile congress, Oudtshoorn South Africa 21 - 25 Sept. pp:88-90.
NDERITU, PROFWARUICHARLES.  1998.  Nanguri, D.L., Warui, C.N. and Kamau, G.N. (1998). Spectroscopic studies and physico-chemical properties of Unsaponifiable matter of avocado oil. Proceedings of the 1st Pan-African conference of the federation of African Societies of Biochemistry and Molecular Biology (FASBMB) 145-150..
NDERITU, PROFWARUICHARLES.  1998.  Kamau, G.N., Kithinji, Z. ,Morris, G.F., and Warui, C.N. (1998). Extraction and spectroscopic study of avocado oil. International J. of Biochem, Physics, Vol. 6 and 7, Nos 1 and 2: 36 - 43. Proceedings of the first Biotechnology Workshop, Department of Chemistry, 7-11 June 1999..

1996

NDERITU, PROFWARUICHARLES.  1996.  Warui, C.N. (1996). Commercialization of research work on the avocado oil extraction and avocado seedcake UNISPAR project.. Proceedings of the World Congress of Engineering Educators and Industry leaders, UNESCO, July 1996..
NDERITU, PROFWARUICHARLES.  1996.  Skadhauge, E., Dawson, T.J., Prys-Jones, R. and Warui, C.N. (1996). The role of the kidney and Gut in osmoregulation. In :Deeming, D.C. (ed). Improving our understanding of ratites in a farming environment, part IV, pp. 115 - 122, Oxford Print Centre, Oxf. Proceedings of the 2nd International ratile congress, Oudtshoorn South Africa 21 - 25 Sept. pp:88-90.

1995

NDERITU, PROFWARUICHARLES.  1995.  Skadhauge, E., Prys-Jones, R.P., Swart, D. and Warui, C.N. (1995). Colonic SCFA and electrolyte absorption and nasal gland development, in relation to NaCl intake in the Ostrich (Struthio camelus). Pflug. Arch., Eur. J. Physiol. 430 suppl. 4:R73.. Proceedings of the World Congress of Engineering Educators and Industry leaders, UNESCO, July 1996..

1994

Makori, N;, Oduor-Okelo D;, Warui CN;, Owiti GEO.  1994.  An ultrastructural and morphometric study of the late-term placenta of the root rats(Tachyoryctes splendors). In advanced in Reproductive Research in man and animals.

1992

NDERITU, PROFWARUICHARLES.  1992.  Makori, N., Oduor-Okello, D., Warui, C.N., and Otiang. Proceedings of the 2nd International Conference on advances in Reproductive Research in Man and Animals, National Museums of Kenya, Nairobi, Kenya..

1989

Warui, CN.  1989.  Light microscopic morphometry of the kidneys of fourteen avian species..
NDERITU, PROFWARUICHARLES.  1989.  Maina, J.N., Maloiy, G.M.O., Warui C.N., Njogu, E. K. and Kokwaro, E.D. (1989).A Scanning electron microscope study of the reptilian lung: The savanna monito lizard (Varanus exanthematicus) and the pancake tortoise Malacochersus tornieri).Anatomical Recor. Proceedings of the 2nd International Conference on advances in Reproductive Research in Man and Animals, National Museums of Kenya, Nairobi, Kenya..
NDERITU, PROFWARUICHARLES.  1989.  Warui, C.N., (1989). Light Microscopical morphometry of the kidneys of fourteen avian species. J. Ant..142: 19 - 31.. Proceedings of the 2nd International Conference on advances in Reproductive Research in Man and Animals, National Museums of Kenya, Nairobi, Kenya..

1987

Macaques, R, Ott-Joslin JE, Lasiey BL, Zucker EL, Miller TJ, Bennett B, Stover J.  1987.  Zoo Zoology. Website
NDERITU, PROFWARUICHARLES.  1987.  Maloiy, G.M.O., Warui, C.N. and Clemens, E.T. (1987). Comparative gastrointestinal morphology of the Kori bustard and secretary bird. Zoo Biology 6.243-251.. Proceedings of the 2nd International Conference on advances in Reproductive Research in Man and Animals, National Museums of Kenya, Nairobi, Kenya..

1985

NDERITU, PROFWARUICHARLES.  1985.  Warui, C.N., and King, A.S. (1985. Stereological observations on the kidney of the domestic fowl. J. Anat. 142: 129-139.. Proceedings of the XIIth International Anatomical Congress: London 764 A..
NDERITU, PROFWARUICHARLES.  1985.  Warui, C.N. (1985). Stereological observations on the kidneys of 16 avian species.. Proceedings of the XIIth International Anatomical Congress: London 764 A..
NDERITU, PROFWARUICHARLES.  1985.  Warui, C.N. (1985). Quantitative observations on the structural characteristics of the avian kidney. Ph.D. Thesis, University of Liverpool (England).. Proceedings of the XIIth International Anatomical Congress: London 764 A..

1984

NDERITU, PROFWARUICHARLES.  1984.  Skadhauge, E., Warui, C.N., Kamau, J.M.Z. and Maloiy, G.M.O. (1984). Function of the lower intestine and osmoregulation in the Ostrich: Preliminary anatomical and physiological observations. Quart J. Exp. Physiol. 69: 809 - 818.. Proceedings of the XIIth International Anatomical Congress: London 764 A..
NDERITU, PROFWARUICHARLES.  1984.  Warui, C.N. (1984). A stereological comparison of the perfused and immersed avian kidneys. J. Anat. 139: 729-730. Proceedings of the XIIth International Anatomical Congress: London 764 A..

1982

NDERITU, PROFWARUICHARLES.  1982.  Alexander, R. McN., Maloiy, G.M.O., Ker, R.F., Jayes, A.S. and Warui, C.N. (1982). The role of tendon elasticity in the locomotion of the camel (camelus dromedarius). J. Zoology 198: 293-313. Proceedings of the XIIth International Anatomical Congress: London 764 A..

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