The objective of this study was to assess the effects of repeatedadministration of ivermectin alone or with the combination of Vitamin C on kidneyfunction and histopathological effects on kidney and lung of rabbits. Total of 48mature female rabbits were used in this study. The rabbits were divided into eightgroups of equal number (6). The 1st group was administered 0.9% Nacl whichconsiders as control. The 2nd , 3rd , and 4th groups were administered (0.5mg, 1mg,and 2mg/Kg B.W Ivermectin) respectively. While the 5th group was administered50mg/Kg B.W vitamin C only. The 6th , 7th , and 8th groups were given 50mg/Kgvitamin C in combination with Ivermectin (0.5mg, 1mg, and 2mg/Kg B.W )respectively. The ivermectin therapy was given S/C weekly, while the vitamin C wasgiven daily and orally. The treatment in all groups were prolonged for 8 weeks.The results showed significant increase (P˂ 0.05) in uric acid level in the 4thgroup. Also the level of urea and blood urea nitrogen were revealed significantdecrease (P˂ 0.05) in 7th group. While the creatinine level clarified significantincrease (P˂ 0.05) in the 3rd and 8th groups as compared with control group.The histopathological changes as a results of ivermectin treatment in kidneyincluded vacuolation of subcapsular tubules, atrophy of glomeruli. The lung showeddilated alveoli, bronchioles were aggregated with lymphocyte, dilatation ofbronchioles, as well as, folding and thickening of bronchial epithelium. Theadministration of vitamin C with combination of Ivermectin ameliorate the harmfuleffect of ivermectin treatment. It can be conclude that the repeated administration ofivermectin causes hazardous effects on kidney function and many ofhistopathological changes were demonstrated in kidney and lung structure. Thechanges were increased proportionally with the dose. The administration of vitaminC can acts as protective agent.

         As a chemotherapeutic agent, bleomycin is a glycopeptide antibiotic that is used to treat cancer. However, it is linked lung toxicity. Hidrosmin is a man-made flavonoid that reduces inflammation and protects cells from damage. Vitamin C is a water-soluble vitamin with the potential to reduce lung fibrosis. The experiment randomly assigned forty mature male rats into five groups. Group 1: control group with DMSO (5 ml/kg) for 20 days; Group 2: bleomycin intratracheally (5 mg /kg) on day seven of the experiment, Group 3; hidrosmin orally (300 mg/kg/day) for 20 days + BLE intratracheally (5 mg/kg) on day seven; Group 4: vitamin C orally (100 mg/kg/day) for 20 days + BLE intratracheally (5 mg/kg) on day seven; Group 5: hidrosmin orally (300 mg/kg/day) + vitamin C orally (100 mg/kg/day) daily for 20 days; and BLE (5 mg/kg) on day seven. The experiment randomly assigned forty mature male rats into five groups. The first group got DMSO (5 ml/kg) every day as a control. The second group got bleomycin intratracheally (5 mg/kg) on the seventh day of the experiment. The third group got hidrosmin orally (300 mg/kg/day) for 20 days and BLE intratracheally (5 mg/kg) on the seventh day. The fourth group got vitamin C orally (100 mg/kg/day) for 20 days and BLE intratracheally (5 mg/kg) on day seven. The fifth group got hidrosmin orally (300 mg/kg/day) plus vitamin C orally (100 mg/kg/day) every day for 20 days and BLE intratracheally (5 mg/kg) on the seventh day.

This study was carried out to investigate the role of both calcium chloride and Vitamin C in protection against the deterioration effect of sodium fluoride (NaF) exposure on thyroid function .Fifty adult male rats were used, which divided randomly into five equal groups, the first group: The animals of this group served as control group administrated distilled water orally by gavage. Second group: administrated NaF (5.2mg/kg.bw/day) orally by gavage. Third group: administrated NaF (5.2mg/kg.bw/day) + Calcium Chloride (20mg/kg.bw/day) orally by gavage. Fourth group: administrated NaF (5.2mg/kg.bw/day) + Vitamin C (100mg/kg.bw/day) orally by gavage. Fifth group: administrated NaF (5.2mg/kg.bw/day) + Calcium Chloride (20mg/kg.bw/day) + Vitamin C (100mg/kg.bw/day) orally by gavag . The treatment continued for 45 days. At the end of the experiment, animals were sacrificed under anesthesia. Blood samples were taken and the serum was separated for the study of the thyroid hormones, and tissue samples of the thyroid gland were taken for histological changes. The study showed a significant elevation in thyroid stimulation hormone (TSH), and a significant reduction in tri-iodothyronine (T3) and thyroxin (T4) hormones concentration in NaF treated group compared with control, however a significant improvement were recorded in above cited parameters in all treated groups. Histopathological study revealed hyperplasia include presence of large number of small follicles in NaF treated group whereas a significant amelioration were found in all other treated groups which appeared semi-normal compared with control group

The objective of this study is to elicit the destructive effect of lead on the tissues of liver and kidney of mice and if vitamin C is capable of repairing the damage caused by lead. In this study, 40 male mice were used and divided into three groups as: Control group which consists of 16 mice; 8 of them were injected intraperitoneally with (0.9 % N.S.) for 15 days daily then they were sacrificed and the remainder 8 mice were injected intraperitoneally with (0.9 % N.S.) for additional 15 days daily then they were sacrificed, First treated group (T1 group) which consists of 8 mice only; they were injected intraperitoneally with (80 mg/kg) lead acetates then with (400 mg/kg) vitamin C after one hour of lead acetates injection for 15 days daily then they were sacrificed, Second treated group(T2 group) which consists of 16 mice; they were injected intraperitoneally with (80 mg/kg) lead acetates for 15 days daily then 8 of them were sacrificed and called as (T2a) and the remainder 8 mice were injected with (400 mg/kg) vitamin C for additional 15 days daily and called as (T2b). Histologically, the kidneys of the lead acetates treated group indicated undefined epithelial cell lining and also the presence of giant-like cells. When vitamin C offered, it decreased the damage that caused by lead where the kidneys indicated the presence of cuboidal epithelial cells with disrupted epithelial cell lining, and increased intracellular space in the lumen. The livers of the lead acetates treated group indicated the presence of abnormal hepatocytes with distorted shape and undefined epithelial cell lining enlarged nucleus with vacuolations. The incidence of changes and severity were less in the vitamin C treated group. The effect of vitamin C was similar if it is offered after one hour of lead injection or for additional 15 days after lead injection. Hence acute exposure to lead causes morphological changes in the liver and kidney of mice. Hence acute exposure of lead may be toxic and is associated with various pathological conditions such as hepatic and renal dysfunction and cancers.

The present study was designed to determine the adverse effect of sodium benzoate (SB), vitamin C (Vit.C) alone and their combination on liver and kidney functions in rabbits. Thirty-six adult male rabbits were divided randomly into six equal groups. Group 1 (Control group) received orally distal water, group 2: Vit.C (200mg/kg BW/day) received orally, group 3: received orally SB (60 mg/kg BW/day), group 4: received orally SB (120 mg/kg BW/day). Group 5: received orally SB+Vit.C (60+200 mg/ kg BW/day) and group 6: received orally SB+Vit.C (120+200 mg/ kg BW/day). The result revealed a significant increment in ALT, AST, ALP and MDA in groups 4, 5 and 6 while total protein levels increased in G3 and G4 and decrease in G5 and G6 compared to control and another treated groups. The urea and creatinine levels increased in G5 and G6 as compared to another groups. In conclusion that SB administration alone and together with Vit.C caused adverse effect on liver and kidney functions compared to the group treated with the Vit.C alone and control groups.

The present study was designed to determine the adverse effect of sodium benzoate(SB), vitamin C (Vit.C) alone and of their combination on reproductive functions inrabbits. Thirty-six adult male rabbits were divided randomly into six equal groups. Group1 (Control group) received orally distal water, group 2: Vit.C (200mg/kg BW/day)received orally, group 3: received orally SB (60 mg/kg BW/day), group 4: received orallySB (120 mg/kg BW/day). Group 5: received orally SB+Vit.C (60+200 mg/ kg BW/day)and group 6: received orally SB+Vit.C (120+200 mg/ kg BW/day). The result revealed asignificant decrease in serum testosterone concentrations in all treated groups ascompared with Vit.C and control group. Significant differences were observed in spermconcentration, viability, abnormality and significant decrease in sperm motility in groupstreated with combination of SB and Vit.C as compared with control. A significantimprovement in sperm concentration, sperm motility, viability and abnormality in G2(Vit.C) group compared with all-treated groups. Histopathological changes in testiculartissues in groups treated with SB+Vit.C showed marked vacuolation and degeneration ofseminiferous tubules, with arresting of spermatogenesis.

The present study was designed to determine the ameliorative effect of melatonin (Mel),vitamin C (Vit.C) alone and their combination on liver and kidney functions in acrylamide (ACR)intoxicated rats(administration ACR for 45days). Forty eight adult male rats were divided randomlyinto two main groups. Control group (no=20) subdivided into two groups: groupI: ten animals ofcontrol administration distal water and group II:ten animals give Mel(5mg/kgBW) for 21 days.second group: the ACR treated group(n=40) subdivided into ACR+distal water orally, ACR+Mel(5mg/kg BW/day), ACR+Vit.C (200 mg/kg BW/day), ACR+Mel (5mg)+Vit.C (200 mg)/kg BW/dayfor 21 days. The result revealed that no significant differences in serum AST, ALT and ALPenzymes levels between control group treated with Mel and control group. A significant reduction inserum AST, ALT and ALP levels were recorded in all treated groups compared with ACR-nontreated group in which the above cited parameters still significantly higher compared with control.No significant differences were recorded in serum total protein, urea and creatinine concentrationsbetween control+Mel treated group compared with control. A significant improvement in serum totalprotein, urea and creatinine concentrations were recorded in all treated groups compared with ACRnontreated group.

Objective: This study was aimed to evaluate the effects of daily intake of vitamin C or selenium against deleterious effects of nicotine toxicity on pregnant albino rats. Materials and methods: Forty albino pregnant rats were equally distributed into four groups. Group A was considered as control. Group B was administered with nicotine dosed at 1 mg/kg body weight (bwt) daily for 7 weeks (wks) from 1st day of gestation until the postnatal 4 wks. Group C was treated with nicotine and vitamin C dosed at 1 mg/kg bwt orally for 7 wks, group D was treated with nicotine and sodium selenite dosed at 1 ug/100 g bwt concurrently for 7 wks. The levels of catalase (CAT), superoxide dismutase (SOD), protein carbonyl (PC) and thiobarbituric acid reactive substances (TBARS), were estimated in homogenates of the lung, kidney and liver. Histopathological studies using hematoxylin and eosin as well as immunohistochemical studies using p53 antibody were also done. Results: Nicotine significantly elevated the levels of TBARS and PC as compared to control rats. Groups C and D showed decrease in these levels significantly. CAT and SOD activities of group B were decreased significantly. Significant elevation of CAT and SOD activities was detected in both groups C and D. Vitamin C elevated the antioxidant enzymes activities to normal levels, however selenium administration improved these levels but still lower than those of group A. Expression of p53 was decreased in group B as compared to group A. Vitamin C completely reversed the expression of p53 as group A. However, group D did not showed any significant changes in expressions as compared to group B. Conclusion: It is concluded that vitamin C intake was useful than selenium in prevention against nicotine-induced oxidative stress including p53 expression in the lung, kidney and liver of pregnant rats. [J Adv Vet Anim Res 2016; 3(4.000): 321-331]