Journal of Physiology and Pathophysiology 2141-260X Academic Journals 10.5897/JPAP2015.0097 Achie L. N. Okorie M. Olorunshola K. V. Ayegbusi F. O. * E-mail: nzug@yahoo.com 2016 31 05 2016 13 03 2015 30 11 2015 7 3 15 22 This is an open-access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. This article is available from http://politicalwaffle.uk/journal/JPAP/article-abstract/47D30A959164 The full text article is available as a PDF file from http://politicalwaffle.uk/journal/JPAP/article-full-text-pdf/47D30A959164 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63