RESUMEN
The aim of this work is to study the effect of different levels of alitame in comparison with aspartame on some biochemical aspects in diabetic rats. The present study was carried out in the National Nutrition Institute NNI Cairo, Egypt on 48 adult male Sprague Dawley albino rats weight [185-197gm]. The rats were divided into 8 groups 6 rats each. The first group represents the normal control while the other seven groups were rendered diabetic by alloxan injection. One group of them represents the diabetic control group. The other six diabetic groups were administrated either aspartame or alitame [10, 50, 100 mg/ Kg BW / day] for a period of five weeks. Hemoglobin [Hb], glucose, total protein, albumin, globulin, lipid profile and liver enzymes were assayed. Serum glucose, albumin, HDL-C, ALT and ALP levels showed significant decrease while LDL-C and AST levels increased significantly in alitame fed groups as compared to aspartame fed groups. Hemoglobin, total protein, globulin and albumin / globulin [A/G] ratio showed no significant difference between aspartarre and alitame fed groups. It is recommended to pay attention to the amount of artificial sweeteners an individual consumes in his diet daily. It is important to be cautious when using sweeteners. These products should be used in moderation
RESUMEN
Plasma levels of nitric oxide [NO] and alpha-tocopherol as well as catalase activities in colon and liver tissues were assessed in 1, 2 dimethylhydrazine-induced colon cancer rats. Five groups of male Sprague-Dawley rats were fed the experimental diets supplemented with Allium sativum powder and Nigella sativa seeds [2.5%, 5%] or a mixed dose of both plants [5% of each] for 24 weeks, experimental period. At the fifth week rats were subcutaneously injected with dimethylhydrazine dihydrochloride [DMH] at a dose of 20mg/kg body weight for 20 weeks. Another two groups of rats were fed the basal diet for the same period, the first group designed as negative control group and injected with saline solution while the second group was injected with DMH at the same dose and designed as positive control group. Colon carcinogenesis was accompanied by a significant increase in the level of NO as well as catalase activity and significant decrease in plasma levels of alpha-tocopherol. Only the 5% Allium sativum powder fed group exhibited a significant decrease in NO level. Administration of Allium sativum powder and the mixed dose caused significant decrease in colonic and hepatic catalase activities and significant increase in alpha-tocopherol levels. On the other hand, the effects of Nigella sativa seeds on the measured parameters were non significant. These results were confirmed by the histopathological results that showed low incidence of colon tumors in rats fed 5% Allium sativum powder [17%] and the mixed dose [56%] fed groups. It could be concluded that the promising effect of garlic in DMH-induced colon cancer rats may be mediated through modulation of plasma levels of nitric oxide and alpha-tocopherol as well as tissue catalase activity