Aims: Etoposide (Vepesid) is chemotherapeutic drugs that inhibit topoisomerase II activity and long been used for treatment of human malignancies, where it is a semi-synthetic compound derived from the plant Podophyllum peltatum. The current study was designed to investigate the possible protective effect of rosemary extract against Etoposide -induced changes in liver and kidney functions, and DNA damage in rats. Materials and Methods: A total of 50 male Wistar albino rats were divided randomly into four groups (1st group was control; 2nd group was treated with rosemary, 3rd group was received etoposide, and 4th & 5th groups was co- and post treated groups respectively). Results: The administration of Etoposide revealed a significant increase in serum ALT, AST, ALP, creatinine, urea, potassium ions, chloride ions, and DNA damage. In contrast; a significant decrease in albumen, total proteins, sodium ions, and calcium ions were when compared with control group. This increased in ALT, AST, ALP, creatinine, urea, potassium ions, chloride ions, and DNA damage was reduced after administration of rosemary when co-treated with etoposide (G4), or post-treated after etoposide  (G5) for four weeks with lowest damage in G4. Also, this decreased in albumen, total proteins, sodium ions, and calcium ions was increased after administration of rosemary when co-treated with etoposide (G4), or post-treated after etoposide (G5) for four weeks with lowest damage in G4. Conclusion: It could be concluded that rosemary has a promising role and it worth to be considered as a natural substance for protective the liver and kidney toxicity induced by etoposide (Vepesid) chemotherapy.

Etoposide is chemotherapeutic drugs that inhibit topoisomerase II activity and long been used for the treatment of human malignancies. The present study was designed to investigate the possible protective effect of rosemary extract against Etoposide-induced liver toxicity, injury, and KI67 alterations in rats. A total of 40 male Wister albino rats were divided randomly into four groups (1 st group was control; 2 nd group was treated with rosemary, 3 rd group was received Etoposide, and 4 th group was treated with both rosemary and Etoposide. The administration of Etoposide significantly caused elevation in ALT, AST, ALP, and liver damage while albumin, total proteins, and KI67 expressions were significantly decreased when compared with the control group. Co-treated rats with rosemary and Etoposide maintained the levels of the measured parameters. Finally, it could be concluded that rosemary has a promising role and it worth to be considered as a natural substance for protecting the liver toxicity and injury induced by Etoposide chemotherapy.

Apoptosis plays a critical role in the development and homeostasis of multicellular organisms, especially those with high cell turnover such as the lymphoid system. The current study aimed to examined the effects of changes in thyroid hormones on apoptosis of spleen in male rats. 30 rats were equally divided into three groups (10 animals each). G 1 , control group in which animals did not received any treatment; G 2 , Hypothyroid group in which rats received 0.05% 6-n-propyl-2-thiouracil (PTU) in drinking water for 6 weeks; G 3 , Hyperthyroid group in which rats received 100 µg/Kg L-Thyroxin sodium administration in drinking water for 6 weeks. In the present study; serum T 3 and T 4 concentrations were depressed and serum TSH concentration was significantly elevated in rats receiving PTU-induced hypothyroidism. On the other hand; serum T 3 and T 4 concentrations were significantly elevated and serum TSH concentration was depressed in rats receiving L-Thyroxin sodium-induced hyperthyroidism. In the current study; spleen in both hypothyroid and hyperthyroid rats revealed many of abnormalities as marked disruption of spleen structure, loss in distinction between the white and red pulps, degeneration and vacuolation with an increased in the lymphocyte population. Also, a significant increase in p53 and Caspase3 apoptotic cells and a significant decrease in Bcl-2 antiapoptotic cells in the spleen tissues revealed the possibility of the apoptosis occurrence after PTU or Thyroxin administration in the case of hypothyroidism and hyperthyroidism.

Methotrexate is effective for the treatment of a number of cancers including breast, lung, leukemia an osteosarcoma. This study was conducted to examine the possible modifying effects of Ginkgo biloba against hippocampal and brain toxicity induced by methotrexate in male albino rats. This could be fulfilled through the histological, immunohistochemically and biochemical analysis of hippocampal brain tissues. The experiments were performed on 36 male albino rats divided into 6 groups; the first and second groups were the control and Gingko groups respectively while the 3rd group methotrexate rat group; the 4th and the 5th groups were co-and post treated Methotrexate rat groups with Gingko respectively and the 6th group was methotrexate self-treated rat group. In brain homogenates Malondialdehyde (MDA) levels in methotrexate group showed a significant increase when compared with control group, in contrast methotrexatetreated group also exhibited a significant decrease in brain antioxidants machinery represented by catalase, reduced glutathione (GSH) and total proteins. The histological changes consisted of destruction of oligodendrocytes, sometimes complete over large areas, and sometimes relatively slight. All the rats which survived long enough after treatment showed severe astrocytosis. Rats' brains immunocytochemical results showed that GFAP-positive cells astrocytes increase after Exposure to (MTX) compared with the other groups.

Boldenone is an anabolic androgenic steroid and synthetic derivative of testosterone that was originally developed for veterinary use. Its use is very spread on veterinary medicine because its ability to increase protein synthesis. The aim of this study is to show the toxic effect in liver and kidney caused after the intramuscular injection of boldenone and focus on the role of Moringa oleifera as cotrateated substance in improving hepatic and renal toxicity of boldenone. 40 adult rats were equally divided into four main groups. Group A injected intramuscularly with olive oil, group B treated only with Moringa oleifera 200 mg/Kg body weight, group C injected with boldenone undecylenate only once every three weeks, and co-treated group D which received both intramuscular boldenone undecylenate once every three weeks beside intragastrically dose of of Moringa leaf extract twic-=0lie/week. The results showed that all the animals in the control groups (A and B) appeared healthy till the end of the experiment. The groups treated with boldenone showed a significant elevation in the levels of serum aspartate transaminase (AST), alanine transaminase (ALT), alkaline phosphatase (ALP), total protein, urea, and creatinine compared to the control group. While the oxidative stress in the groups treated with boldenone showed a significant increase in the level of Malondialdehyde (MDA), nitric oxide (NO), total protein, and total thiol and marked reduction in the level of Glutathione (GSH), Catalase activity (CAT), superoxide dismutase activity (SOD). On the other hand the groups treated with Moringa olifera showed a marked reduction in the level of ALT, AST, urea, creatinine, MDA, and NO. While the level of GSH, CAT, and SOD showed a significant increase comparing with the control group. These results explain the side effect of boldenone undecylenate on the liver and kidney which may cause hepatic and renal diseases and also the role of Moringa olifera in improving these results.