scholarly journals Effects of the Interation of Metformin and Vernonia amygdalina (Bitter Leaf) On Steptozotocin-Induced Diabetic Rats

2018 ◽  
pp. 1-8
Author(s):  
A. T. Oluwayemi ◽  
E. O. Nwachuku ◽  
B. Holy
Keyword(s):  
Blood Glucose ◽  
Plasma Glucose ◽  
Liver Enzymes ◽  
Diabetic Rats ◽  
Vernonia Amygdalina ◽  
Blood Samples ◽  
Glucose Levels ◽  
Males And Females ◽  
Blood Glucose Concentrations

The effects of Vernonia amygdalina and metformin in lowering glucose in streptozotocin-induced diabetic rats were evaluated. A total of 120 Wistar albino males and females rats weighing approximately 200 g were used for the study. Diabetes was induced in the rats using 50 mg/kg of streptozotocin, and it was confirmed by checking the glucose levels of the rats. Rats with glucose level greater than 10 mmol/L were considered diabetic. The extract, metformin and a combination of the extract and metformin were given orally to different groups of diabetic rats daily for 10 weeks. Four rats were sacrificed every 2 weeks, and blood samples were collected from all the groups to estimate glucose, total protein and liver enzymes. The data obtained were compared using analysis of variance (ANOVA) and the differences between groups were established using Dunnets. The extract and metformin produced significant (P<0.05) decrease in plasma glucose concentrations in the diabetic rats. There was also a reduction in the plasma glucose of the rats that received a combination of the extract and metformin. The decrease in the blood glucose concentrations of the diabetic rats following the administration of the extract suggests that it possesses hypoglycemic effects on streptozotocin-induced diabetic rats. The presence of flavonoids, saponins and other phytochemicals in the extract must have acted to potentiate the hypoglycemic role of the extract.

scholarly journals Evaluation the Effect of Vernonia amygdalina. Del Leaves Ethanol Extract on Blood Sugar and its Synergism with Glibenclamide in Rats

2020 ◽  
Vol 13 (1) ◽  
pp. 26-34
Author(s):  
Igwe K ◽  
Ikpeazu O ◽  
Otuokere I
Keyword(s):  
Blood Glucose ◽  
Ethanol Extract ◽  
Positive Control ◽  
Negative Control ◽  
Diabetic Rats ◽  
Antidiabetic Activity ◽  
Control Group ◽  
Vernonia Amygdalina ◽  
Treatment Groups ◽  
Glucose Levels

Antidiabetic activity of Vernonia amygdalina and its possible synergism with glibenclamide was checked. Forty eight rats were used for the research, for hypoglycermic study of V. amygdalina alone, they were grouped into five of six rats each. Group 1 was the negative control and was administered distilled water orally. Groups 2, 3, and 4 were the treatment groups which received 100, 200 and 300 mg/kg body weight of the V. amygdalina extract respectively orally by intubation. Group 5 was the positive control group which received a known antidiabetic drug, glibenclamide. Diabetes was induced with alloxan. For the synergism study, another 18 rats grouped into 3 of six rats each was used. Both groups of glibenclamide only and glibenclamide plus V. amygdalina extract were dosed for 14 days orally by intubation, thereafter were sacrificed and blood collected from heart for analysis. There were 5 replicates grouped by weight throughout the study and both single and synergistic studies had the same controls. Effect of V. amygdalina extract was checked on blood glucose and its possible synergism with glibenclamide. All results in treatment groups were compared with the normal control at statistical confidence of p<0.05. Result shows that V. amygdalina extract reduced blood glucose level in the test groups as dose of extract increased. Combination of V. amygdalina with glibenclamide demonstrated further deduction in blood glucose levels in the treatment rats groups. Therefore addition of V. amygdalina into glibenclamide increased efficacy in the diabetic rats. The interaction between V. amygdalina and glibenclamide in this work was additive and therefore synergistic.

Insulin administration abrogates perturbation of methyl group and homocysteine metabolism in streptozotocin-treated type 1 diabetic rats

2011 ◽  
Vol 301 (3) ◽  
pp. E560-E565 ◽  
Author(s):  
Kristin M. Nieman ◽  
Kevin L. Schalinske
Keyword(s):  
Blood Glucose ◽  
Regulatory Protein ◽  
Diabetic Rats ◽  
Plasma Homocysteine ◽  
Future Research ◽  
Sprague Dawley ◽  
Methyl Group ◽  
Sprague Dawley Rats ◽  
Blood Glucose Concentrations

Modifications in methyl group and homocysteine metabolism are associated with a number of pathologies, including vascular disease, cancer, and neural tube defects. A diabetic state is known to alter both methyl group and homocysteine metabolism, and glycine N-methyltransferase (GNMT) is a major regulatory protein that controls the supply and utilization of methyl groups. We have shown previously that diabetes induces GNMT expression and reduces plasma homocysteine pools by stimulating both its catabolism and folate-independent remethylation. This study was conducted to determine whether insulin plays a role in the control of homocysteine concentrations and GNMT as well as other key regulatory proteins. Male Sprague-Dawley rats were randomly assigned to one of three groups: control, streptozotocin (STZ)-induced diabetic (60 mg/kg body wt), and insulin-treated diabetic (1.0 U bid). After 5 days, rats were anesthetized (ketamine-xylazine) for procurement of blood and tissues. A 1.5-fold elevation in hepatic GNMT activity and hypohomocysteinemia in diabetic rats was completely prevented by insulin treatment. Additionally, diabetes-mediated alterations in methionine synthase, phosphatidylethanolamine N-methyltransferase, and DNA methylation were also prevented by insulin. We hypothesize that the concentration of blood glucose may represent a regulatory signal to modify GNMT and homocysteine. In support of this, blood glucose concentrations were negatively correlated with total plasma homocysteine ( r = −0.75, P < 0.001) and positively correlated with GNMT activity ( r = 0.77, P < 0.001). Future research will focus on further elucidating the role of glucose or insulin as a signal for regulating homocysteine and methyl group metabolism.

scholarly journals Protective Effect of Tylophora indica against Streptozotocin Induced Pancreatic and Liver Dysfunction in Wistar Rats

2020 ◽  
Vol 13 (4) ◽  
pp. 1755-1763
Author(s):  
Swathi Putta ◽  
Kotaiah Silakabattini ◽  
Jagadeesh Kumar T
Keyword(s):  
Oxidative Stress ◽  
Blood Glucose ◽  
Protective Effect ◽  
Liver Enzymes ◽  
Thiobarbituric Acid ◽  
Diabetic Rats ◽  
Glutathione S Transferase ◽  
Tylophora Indica ◽  
Glucose Levels ◽  
Liver And Pancreas

The objective of the study is to evaluate the ethanolic leaf extract of Tylophora indica (ELTI) on pancreatic and hepatic oxidative stress in streptozotocin (STZ) induced diabetic rats. The serum blood glucose and liver enzymes (AST, ALT and ALP) were estimated in all the groups. The elevated blood glucose levels and liver enzymes were found to be decreased with ELTI in STZ induced diabetic rats. The activities of antioxidant enzymes superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), glutathione-S- transferase (GST) and the levels of reduced glutathione (GSH) were also decreased, while an increase in the levels of thiobarbituric acid reactive substances (TBARS) were observed in pancreas and liver with ELTI treatment in STZ induced diabetic rats. Histopathology reveals that the protective effect of ELTI over STZ induced oxidative damage in both liver and pancreas. These results indicated that ELTI has more potential antioxidant effects on diabetic-induced oxidative stress.

scholarly journals Potential role of liver enzymes for predicting elevated blood glucose levels

2021 ◽  
Author(s):  
Mengna Wu ◽  
Shiyan Nian ◽  
lei feng ◽  
Xuejing Bai ◽  
Dan Ye ◽  
...  
Keyword(s):  
Risk Factors ◽  
Gender Differences ◽  
Blood Glucose ◽  
Liver Enzymes ◽  
Elevated Blood ◽  
Glucose Levels ◽  
Elevated Blood Glucose ◽  
Blood Glucose Levels ◽  
Independent Risk Factors

Abstract Background This study was to explore the potential effect of different liver enzymes on elevated blood glucose with the use of a more detailed blood glucose grouping. Methods This cross-sectional study enrolled 144,135 participants who had biochemical examinations from 2014–2018. Participants were classified by sex and different blood glucose levels (< 5.0 mmol/L, 5.0-5.5 mmol/L, 5.6–6.2 mmol/L, 6.3–6.9 mmol/L, and ≥ 7.0 mmol/L). The associations between liver function indicators and occurrence of type 2 diabetes (T2DM) were analyzed through multivariate linear regression and multiple logistic regression. Results There was a significant difference among the biochemical indices between different blood glucose groups in males and females. Liver enzymes such as alanine aminotransferase (ALT), aspartate transaminase (AST), alkaline phosphatase (ALP), and γ-glutamyl transpeptidase (GGT) were independent risk factors for raised blood glucose, and there were gender differences in the predictive performance of each liver enzyme to elevated blood glucose levels. In men, GGT was the most appropriate to predict progressive elevation of blood glucose or T2DM risk, and ALT and ALP may only be applicable to the prediction of impaired fasting glucose (IFG). By contrast, ALT and ALP were the most appropriate enzymes for the prediction of the risk of elevated blood glucose or T2DM in women, and AST and GGT may only be appropriate for the prediction of IFG. Conclusions Liver enzymes were independent risk factors for elevated blood glucose. There were gender differences in the role of each liver enzyme for elevated blood glucose. GGT was more suitable as a predictor for dynastic elevated blood glucose in men, whereas for women, ALT and ALP were more suitable.

Antidiabetic Activity of Fractions of the n-Hexane Extract of Leaves of Eriosema psoraleoides (Lam) G. Don (Leguminosae) on Alloxan-induced Diabetic Albino Rats

2019 ◽  
Vol 7 (04) ◽  
pp. 05-09
Author(s):  
N. A. Elechi ◽  
F. W. Ewelike
Keyword(s):  
Blood Glucose ◽  
Diabetic Rats ◽  
Hexane Extract ◽  
Antidiabetic Activity ◽  
Albino Rats ◽  
Standard Drug ◽  
Glucose Levels ◽  
Blood Glucose Levels ◽  
Rf Values ◽  
Blood Glucose Concentrations

Diabetes is a chronic disease that is raising health concerns. Eriosema psoraleoides is one of the medicinal plants reported to be used in managing this condition in Eastern Nigeria. This study investigated the effect of four fractions [(n-hexane; n-hexane: dichloromethane (50:50); dichloromethane; and dichloromethane: methanol (95:5)] of the n-hexane leaf extract of this plant on the blood glucose levels of alloxan-induced diabetic rats. The n-hexane extract was obtained by maceration, filtration, and evaporation using a rotary evaporator. Phytochemical screening of the extracts was carried out using standard methods. The extract was fractionated using column chromatography, and ten fractions were obtained. The fractions were pooled together into four fractions based on the similarity in their Rf values. A dose of 200mg/kg of each of the fractions was given orally for 7 days to the alloxan-induced diabetic rats, and plasma blood glucose concentrations determined. Preliminary screening of the extract revealed the presence of flavonoids, steroids, reducing sugars, tannins and combined anthraquinones. Two fractions, the n-hexane: dichloromethane (50:50) and the dichloromethane, produced significant (p 0.05) decrease in blood glucose concentrations in their treated groups compared to that of glibenclamide (standard drug) treated, and the diabetic untreated groups of the diabetic rats. However, the n-hexane and the dichloromethane: methanol (95:5) fractions produced no significant (p 0.05) decrease in blood glucose concentrations. The observed antidiabetic property of the n-hexane: dichloromethane (50:50) and the dichloromethane (100%) fractions suggests that Eriosema psoraleoides could be used in the management of diabetes and this gives credence to its use in ethnomedicine for this purpose.

scholarly journals Antidiabetic and anti-oxidant activities of the methanol leaf extract of Vernonia amygdalina in alloxan-induced diabetes in Wistar rats

2017 ◽  
Vol 1 (1) ◽  
Author(s):  
Adegbolagun T. Adeoye ◽  
Ademola A. Oyagbemi ◽  
Aduragbenro D. Adedapo ◽  
Temidayo O. Omobowale ◽  
Abiodun E. Ayodele ◽  
...  
Keyword(s):  
Blood Glucose ◽  
Wistar Rats ◽  
Leaf Extract ◽  
Diabetic Control ◽  
Diabetic Rats ◽  
Control Group ◽  
Vernonia Amygdalina ◽  
Glucose Levels ◽  
Blood Glucose Levels ◽  
Biochemical Indices

The methanolic leaf extract of Vernonia amygdalina (MLVA) was assessed to evaluate its antidiabetic potential in rats. Diabetes was induced in male Wistar rats by the administration of alloxan monohydrate at 100 mg/kg of body weight. After 48 h, rats with fasting blood glucose levels of 200 mg/dL and above were considered diabetic and used for the study. The experimental animals were grouped into five groups (A–E) of 10 animals each. Group A rats were non-diabetic normal control, Group B consisted of diabetic control rats that received no treatment, groups C, D and E rats were diabetic rats but treated with glibenclamide, 200 and 400 mg/kg doses of MLVA respectively. Blood samples were collected at days 14 and 28 after induction for haematological and serum biochemical indices such as triglycerides, LDL, cholesterols etc. The intestine was collected and intestinal homogenate was prepared for the antioxidant studies. The extract at 200 mg/kg and 400 mg/kg doses significantly (p < 0.05) reduced blood glucose levels in extract-treated diabetic rats and also significantly increased weight gain in these rats. Most haematological parameters in treated rats experienced, while platelets and neutrophils were decreased. Biochemical indices measured were reduced in MLVA-treated groups compared with diabetic control. Treatment with MLVA also produced significant (p < 0.05) decrease in markers of oxidative stress but increased levels of enzymic and non-enzymic antioxidant markers in intestinal homogenates of treated groups compared with diabetic control. This study showed that V. amygdalina has antihyperglycaemic and in vivo antioxidant effects.

Evaluation of Glucose and Lipid Lowering Activity of Arganimide A in Normal and Streptozotocin-Induced Diabetic Rats

2019 ◽  
Vol 19 (4) ◽  
pp. 503-510 ◽  
Author(s):  
Mohamed Eddouks ◽  
Farid Khallouki ◽  
Robert W. Owen ◽  
Morad Hebi ◽  
Remy Burcelin
Keyword(s):  
Body Weight ◽  
Blood Glucose ◽  
Oral Administration ◽  
Lipid Profile ◽  
Plasma Cholesterol ◽  
Diabetic Rats ◽  
Lipid Lowering ◽  
Glucose Levels ◽  
Blood Glucose Levels ◽  
Lowering Activity

Aims: Arganimide A (4,4-dihydroxy-3,3-imino-di-benzoic acid) is a compound belonging to a family of aminophenolics found in fruit of Argania spinosa. The purpose of this study was to investigate the glucose and lipid lowering activity of Arganimide A (ARG A). Methods: The effect of a single dose and daily oral administration of Arganimide A (ARG A) on blood glucose levels and plasma lipid profile was tested in normal and streptozotocin (STZ) diabetic rats at a dose of 2 mg/kg body weight. Results: Single oral administration of ARG A reduced blood glucose levels from 26.50±0.61 mmol/L to 14.27±0.73 mmol/L (p<0.0001) six hours after administration in STZ diabetic rats. Furthermore, blood glucose levels were decreased from 5.35±0.30 mmol/L to 3.57±0.17 mmol/L (p<0.0001) and from 26.50±0.61 mmol/L to 3.67±0.29 mmol/L (p<0.0001) in normal and STZ diabetic rats, respectively, after seven days of treatment. Moreover, no significant changes in body weight in normal and STZ rats were shown. According to the lipid profile, the plasma triglycerides levels were decreased significantly in diabetic rats after seven days of ARG treatment (p<0.05). Moreover, seven days of ARG A treatment decreased significantly the plasma cholesterol concentrations (p<0.001). Conclusion: ARG A possesses glucose and lipid-lowering activity in diabetic rats and this natural compound may be beneficial in the treatment of diabetes.

Mentha pulegium Aqueous Extract Exhibits Antidiabetic and Hepatoprotective Effects in Streptozotocin-Induced Diabetic Rats

2019 ◽  
Vol 19 (3) ◽  
pp. 292-301
Author(s):  
Omar Farid ◽  
Naoufel Ali Zeggwagh ◽  
Fadwa EL Ouadi ◽  
Mohamed Eddouks
Keyword(s):  
Blood Glucose ◽  
Glucose Tolerance ◽  
Aqueous Extract ◽  
Morphometric Analysis ◽  
Diabetic Rats ◽  
Mentha Pulegium ◽  
Glucose Levels ◽  
Histological Sections ◽  
Blood Glucose Levels ◽  
Liver And Pancreas

Objective: The aim of this work was to evaluate the antihyperglycemic activity of aerial parts aqueous extract (A.P.A.E) of Mentha pulegium (M. pulegium) on blood glucose levels in normal and streptozotocin(STZ)-induced diabetic rat. The glucose tolerance was evaluated in normal rats. Moreover, the histological sections and morphometric analysis at the liver and pancreas have been carried out in this investigation both in normal and STZ-diabetic rats. Methods: The effect of A.P.A.E of M. pulegium (20 mg/kg) on blood glucose levels was investigated in normal and diabetic rats (n=6). Histopathological changes in liver and pancreas were examined under phase contrast microscope and a preliminary screening for various bioactive constituents was realized according to standard methods. Key Findings: Both single and repeated oral administration of A.P.A.E (20 mg/kg) caused a significant reduction in blood glucose levels in STZ-diabetic rats (p<0.0001). The morphometric analysis and histological sections realized in pancreas and liver have showed the beneficial effect of the A.P.A.E in cellular population. According to oral glucose tolerance test (OGTT), the aqueous extract has revealed an improvement of glucose tolerance in normal rat. Furthermore, the preliminary phytochemical screening of A.P.A.E of M. pulegium has demonstrated the presence of various metabolite compounds including polyphenols, flavonoids, terpenoids tannins, cyanidins, sesquiterpenes, and glycosides. Conclusion: We conclude that the A.P.A.E of M. pulegium (20 mg/kg) exhibits a potent antihyperglycemic activity in STZ diabetic rats.

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