Estimation of the prophylactic effect of the egyptian propolis extract against aluminum silicate toxicity on some organs of albino rats growth performance and histochemical studies

Background: the liver is a critical organ because it contains most of the accumulated metals where toxic effects can expected. Also, the lung is directly affected by receiving aluminum as aluminum silicate. Exposure of aluminum leads to production of free radicals that damage living organs and tissues. Aim of the work: this study aimed to evaluate the nucleic acid content in liver, lung and cerebellum tissues intoxicated by aluminum silicate (AlS) and the possible ameliorative effect of propolis extract (PP). Material and methods: Forty male albino rats (weighting 100-120 grams) were categorized randomly into four groups, ten rats on each group (n=10). The 1st group considered as the healthy control group. The 2nd group received 200 ml PP/kg b.wt., day after day by stomach gavage. The 3rd group was injected intraperitoneally by 20 mg AlS/kg b.wt., twice weekly. The 4th group was treated with AlS in addition to PP as the same doses as in the 2nd and 3rd groups. After two months for each group. Liver, lung and cerebellum organs were harvested. Results: decreased body weight gain of rats was realized with weakly stained nucleic acids contents in liver, lung and cerebellum tissues that intoxicated by AlS. While, using the supplemented treatment (PP) at the same time with the induction of AlS compound showed an ameliorative effect on the nucleic acid contents. Conclusion: propolis has anti-oxidant by inhibiting AlS toxicity on nucleic acids in the different experimental organs of rats

Histomorphologic Alterations of the Cerebellum of Wistar Rats following Amodiaquine Plus Artesunate Administration

Amodiaquine and artesunate are two antimalarial drugs sold in combination as Larimalr'. This drug is a very effective artemisinin-base combination. This study was to access the effects of amodiaquine and artesunate combination on the histology of the cerebellum. Twenty adult Wistar rats weighing between 150-180g were divided into four groups (A; B; C and D) of five animals each. Group A served as the control and the animals received distilled water; while group B received 8.75+2.86mg/kg of amodiaquine and artesunate combination for three days; group C received 8.75+2.86mg/kg of amodiaquine and artesunate combination for six days and group D received 17.50+5.71mg/kg of amodiaquine and artesunate combination for three days. Histological sections showed destruction of the Purkinje cortical layers in group B; with increased destructions in groups C and D compared to the control. These results reveal that amodiaquine and artesunate combination causes histological alterations; which were dose and time dependent and these may result in cerebellar dysfunction