Effect Of Methanolic Leaf Extract Of Acalyphawilkesiana On Weight Parameters In Paracetamol Induced Hepatoxicity In Male Wibstar Rats

Project and Seminar Material for Biochemistry

Effect Of Methanolic Leaf Extract Of Acalyphawilkesiana On Weight Parameters In Paracetamol Induced Hepatoxicity In Male Wibstar Rats


Abstract


The potential effect of methanolic extract of the leaves of Acalypha wilkesiana on the weight of wistar rats was investigated. Calculated amount of methanolic leaf extract of Acalypha Wilkesiana were constituted in distilled water from the stock solution to give doses of 500,500 and 1000 mg/kg body weight of paracetamol, vitamin C and leaf extract respectively and administered to the various groups (A, B, C and D). Prior to the administration of methanolic leaf extract of Acalypha Wilkesiana at every interval of seven days, the body weights of the animals were recorded. The acute administration of the aqueous leaf extract of Acalypha wilkesiana did not result in obvious signs of morphological changes or death of male rats throughout the experimental period.

A significant difference (P>0.05) was obtained in the average body weight of animals administered with the extract as compared with the paracetamol treated group. The organ weight also elucidated no significant differences (P<0.05) in the kidney, brain, heart, lung and pancreas except for the liver where there was an increase in the weight of the liver treated with extract as compared to that of the rats treated with paracetamol. From the results obtained it is shown that the extract altered the weight of the liver and is therefore not hepatoprotective, this extract should undergo further investigation before oral administration is recommended.


Chapter One


Introduction And Literature Review

1.1 Medicinal Plants

The use of plants for healing purposes has always been part of human culture and it is getting increasingly popular in Nigeria. Acalypha wilkesiana is one of several medicinal plants used in Nigeria and it has various ethno botanical uses. Acalypha wilkesiana belongs to the family Euphorbiaceae. It is propagated by stem cuttings at any time of the year. Under ideal conditions, it grows as a spreading evergreen shrub with upright branches that tend to originate near the base and can get up to 3.1 m tall with a similar spread. It has leafs (12.7- 20.3 cm long) that are alternate, elliptic to oval, serrate and multi-coloredans small inconspicuous flowers (10.2-20.3 cm) that hangs in catkin-like racemes beneath the foliage

(Al-attar, 2010).

In some parts of southern Nigeria, the use of diuretics in the treatment of hypertension has been traditionally substituted for aqueous leaf extract of Acalypha wilkesiana. Acute changes in body mass over a short time period can frequently be assumed to be due to body water loss or gain; 1 ml of water has a mass of 1 g and therefore changes in body mass can be used to quantify water gain or loss. Over a short time period, no other body component will be lost at such a rate, making this assumption possible (Shirreffs, 2003), thus weight parameters were evaluated and used as makers of hydration status of the male Wistar rats.


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