BACKGROUND: Rutin is a flavonol glycoside that can be found in a wide variety of vegetables and has activity, anti-cancer, anti-inflammatory and anti-diabetic properties. OBJECTIVE: This study investigated the effect of rutin oral administration on Wistar rats submitted to hepatic hyperplasia after partial hepatectomy (PH). METHODS: To achieve this, we considered the analysis of hepatic hyperplastic and plasma biochemical activity of Wistar rats, subjected to treatment with rutin 40 mg/kg/day for 10 days in group 1 (G1) or saline in group 2 (G2), followed by partial hepatectomy. RESULTS: The results indicated an increase in the number of mitoses after 24 hours and 48 hours (P=0.0022 and P=0.0152, respectively) of PH in the group that received rutin, as well as an increase in AST serum levels after 24 hours (P=0.0159) and 48 hours (P=0.0158) and alkaline phosphatase after 24 hours (P=0.015) in the same group, in relation to the respective controls. The group that received rutin showed a more evident variation than the control group when comparing the 24 hour and 48 hour results regarding AST, number of mitoses and number of apoptosis (P<0.005). CONCLUSION: It was concluded that rutin intervened in hepatic hyperplasia after 24 hours and 48 hours of PH, favoring hepatic hyperplasia.
Food supplements are easily acquired and used in various countries. Silymarin has been indicated for diseases of the liver and Chromium picolinate has been indicated for body weight loss and for the improvement of glycemic index. The objective of the present study was to assess the effects of short-term treatment with a combination of silymarin (50 mg/kg) and chromium picolinate (5 µg/kg) on the standard glibenclamide treatment (10 mg/kg) of rats with induced diabetes. DM2 was induced with streptozotocin. Experimental groups of rats: healthy control group, glibenclamide diabetic group, silymarin diabetic group, and silymarin, chromium picolinate and glibenclamide group. After 10 days of oral treatment, we determined body weight, fasting glycemia, glycemia 1 h after gastric gavage with sucrose, and AST and ALT transaminases. Statistical analysis of the data indicated that there was no change in body weight or fasting glycemia, but that glycemia increased after gavage with sucrose in the group submitted to combined therapy. Thus, we concluded that the combination of silymarin and chromium picolinate reduced the efficacy of glibenclamide in the short term, although the two substances had a protective effect on the liver as observed by the reduction of blood transaminase levels.
Introduction: Carthamus oil is a compound that has the potential to be used in numerous applications due to its anti-inflammatory, antioxidant, immunomodulatory and neuroprotective effects. Chromium picolinate has been indicated for the control of insulin resistance. Aim: To evaluate the effect of Carthamus oil (30 mg/kg) and chromium picolinate (5 µg/kg) interaction with oral glyburide in chemically diabetes-induced Wistar rats and its influence on drug therapy. Method: Diabetes mellitus was induced with streptozotocin, and the animals were randomized into experimental groups (n= 6/group), who received gastric gavage treatments for ten days, G1: control, G2: diabetic and received glyburide, G3: diabetic and received the interaction of Carthamus oil and chromium picolinate, G4: diabetic and received the interaction of glyburide, Carthamus oil and chromium picolinate. After the treatment period, fasting blood glucose, post-sucrose blood glucose, total cholesterol and triglyceride levels, alanine aminotransferase (ALT) and aspartate aminotransferase (AST) in blood serum were compared, in addition to urine analysis. Results: In this study, the only altered parameters were the post-sucrose blood glucose measurement with the lowest result for G4 (P <0.05), and the ALT measurement, with lower values for G4 (P <0.05) compared to G1. Conclusion: It can be concluded that the unprecedented interaction of Carthamus oil, chromium picolinate and glyburide contributed to the reduction of blood glucose and serum levels of ALT in diabetic rats and is promising for future studies in humans.
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