scholarly journals Rubusoside Reduces Blood Glucose and Inhibits Oxidative Stress by Activating the AMPK Signaling Pathway in Type 2 Diabetes Mellitus Mice

2022 ◽  
Vol 17 (1) ◽  
pp. 1934578X2110692
Author(s):  
Xi-yu Hu ◽  
Ying Chang ◽  
Zheng-zhe Xu ◽  
Yan Wang ◽  
Min-min Dai ◽  
...  

The current study aimed at investigating the therapeutic effects of rubusoside on type 2 diabetes mellitus (T2DM) mice models as an alternative hypoglycemic candidate drug. T2DM mice models were established with a combination of streptozotocin (STZ) intraperitoneal injection and high-fat diet. After 10 weeks of rubusoside intragastric administration (100, 200 mg/kg/day) to the mice, the body weight, fasting blood glucose, glucose tolerance, and blood lipids were measured. The liver protein expression levels of p-AMPK, GLUT2, GLUT4 and total antioxidant capacity were also investigated. After 10 weeks of rubusoside administration, the levels of blood glucose and lipids were decreased in T2DM mice. Compared with the model group, rubusoside administration significantly decreased the liver mass-to-body weight ratio, upregulated p-AMPK and GLUT4, and downregulated GLUT2 expression levels in the liver. Activities of superoxide dismutase (SOD), catalase (CAT), and gluathione peroxidase (GSH-Px) were increased, and the concentration of malondialdehyde (MDA) was decreased to reduce oxidative stress in the liver. Liver hematoxylin and eosin (H&E) pathological analysis also showed that rubusoside had a protective effect on T2DM mice liver. These results demonstrate that rubusoside could be used as an anti-diabetic candidate drug, and that its hypoglycemic mechanism might be related to the activation of adenosine 5′-monophosphate (AMP)-activated protein kinase (AMPK) to modulate the expression of GLUT2 and GLUT4. Finally, rubusoside could also increase total antioxidant capacity to protect the liver from oxidative stress.

2021 ◽  
pp. 1-41
Author(s):  
Banafsheh Jafari Azad ◽  
Mehdi Yaseri ◽  
Elnaz Daneshzad ◽  
Fariba Koohdani

Abstract This work aims to examine the interaction between Apolipoprotein A2 (Apo A-II) −265T>C single nucleotide polymorphism (SNP) and dietary total antioxidant capacity (DTAC) on inflammation and oxidative stress in patients with type 2 diabetes mellitus. The present cross-sectional study included 180 patients (35-65 years) with identified Apo A-II genotype. Dietary intakes were assessed by a food frequency questionnaire. DTAC was computed using the international databases. Interleukin-18(IL18), high-sensitivity C-reactive protein (hs-CRP), and pentraxin (PTX3), serum total antioxidant capacity (TAC), superoxide dismutase activity (SOD), and 8-isoprostaneF2α (PGF2α) markers were obtained according to standard protocols. General linear model was used to evaluate the interaction. The interaction of gene and DTAC (PFRAP=0.039 and PORAC=0.042) on PGF2α level was significant after adjusting for confounders. A significant interaction was observed on IL18 level (PORAC=0.018 and PFRAP=0.048) and SOD (PTEAC=0.037) in obese patients. Among patients whose DTAC was higher than the median intake, the levels of hs-CRP and PGF2α were significantly higher only in individuals with CC genotype. Serum TAC (PFRAP=0.030, PORAC=0.049) and SOD were significantly lower in the CC genotype. There was a favorable relationship between the high-DTAC and SOD (Obese: PTEAC=0.034, Non-obese: PFRAP=0.001, PTRAP<0.0001, PTEAC=0.003 and PORAC=0.001) and PGF2α (Non-obese: PORAC=0.024) in T-allele carriers. The rs5082 SNP interacts with DTAC to influence several cardio-metabolic risk factors. Also, we found dietary recommendations for antioxidant-rich foods intake might be useful in the prevention of diabetes complications in the T carrier more effectively than the CC genotype. Future large studies are required to confirm these results.


2019 ◽  
Vol 5 (1) ◽  
Author(s):  
Musri Musman ◽  
Mauli Zakia ◽  
Ratu Fazlia Inda Rahmayani ◽  
Erlidawati Erlidawati ◽  
Safrida Safrida

Abstract Background Ethnobotany knowledge in a community has shaped local wisdom in utilizing plants to treat diseases, such as the use of Malaka (Phyllanthus emblica) flesh to treat type 2 diabetes. This study presented evidence that the phenolic extract of the Malaka flesh could reduce blood sugar levels in the diabetic induced rats. Methods The phenolic extract of the P. emblica was administrated to the glucose-induced rats of the Wistar strain Rattus norvegicus for 14 days of treatment where the Metformin was used as a positive control. The data generated were analyzed by the two-way ANOVA Software related to the blood glucose level and by SAS Software related to the histopathological studies at a significant 95% confidence. Results The phenolic extract with concentrations of 100 and 200 mg/kg body weight could reduce blood glucose levels in diabetic rats. The post hoc Dunnet test showed that the administration of the extract to the rats with a concentration of 100 mg/kg body weight demonstrated a very significant decrease in blood glucose levels and repaired damaged cells better than administering the extract at a concentration of 200 mg/kg weight body. Conclusion The evidence indicated that the phenolic extract of the Malaka flesh can be utilized as anti type 2 Diabetes mellitus without damaging other organs.


2017 ◽  
Vol 27 (2) ◽  
pp. 25857
Author(s):  
Samuel Selbach Dries ◽  
Bárbara Da Silveira Soares ◽  
Ana Luiza Ziulkoski ◽  
Simone Gasparin Verza ◽  
Rafael Linden ◽  
...  

*** Oxidative stress in patients with type 2 diabetes mellitus treated with metformin ***AIMS: To evaluate oxidative stress parameters in patients with type 2 diabetes mellitus treated with metformin, relating these values to its side effects, plasma levels, glycemic control, diabetic complications, lipid profile, and the influence of pharmacotherapeutic follow-up.METHODS: Patients with type 2 diabetes mellitus, on metformin and in pharmacotherapeutic follow-up for four months, were evaluated. The pharmacotherapeutic follow-up consisted in providing information and answering patients’ questions about medication and disease. In addition, administration times, dosages, and presence or absence of side effects related to the use of metformin were verified. Glycemic and lipid profile, oxidative stress (superoxide dismutase and malondialdehyde) and plasma metformin were evaluated. Pearson’s correlation and Spearman’s correlation were performed to evaluate the relationship between the variables at the beginning of the study. The independent t-test and Mann-Whitney U test were used to assess the difference between the groups with and without diabetic complications. The range of values between the beginning and  end of the study was evaluated using Student’s t-test or Wilcoxon U test. The significance level was set at 5%.RESULTS: The initial sample consisted of 49 patients aged 59±9 years with a body mass index of 29.8±5.1 kg/m2, who have had diabetes for a median time of 36 months (interquartile range of 1-240) and have been on metformin for a median time of 36 months (interquartile range of 1-180). Twenty-five patients left the study between the second and fourth meetings. Malondialdehyde levels differed between before and after pharmacotherapeutic follow-up, being positively correlated with blood glucose, glycohemoglobin, and triglyceride level, and negatively correlated with metformin and superoxide dismutase. Blood glucose, glycohemoglobin, and malondialdehyde levels increased, whereas metformin levels decreased in the group with diabetic complications, and there was a correlation between malondialdehyde and the number of diabetic complications per patient.CONCLUSIONS: In this sample of patients with type 2 diabetes mellitus treated with metformin, oxidative stress was more pronounced in those with poor glycemic control and diabetic complications.


2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Yajing Li ◽  
Minli Chen ◽  
Hongzhuan Xuan ◽  
Fuliang Hu

The present study investigates the encapsulated propolis on blood glycemic control, lipid metabolism, and insulin resistance in type 2 diabetes mellitus (T2DM) rats. The animal characteristics and biological assays of body weight, fasting blood glucose (FBG), fasting serum insulin (FINS), insulin act index (IAI), triglycerides (TG), total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), and low-density lipoprotein cholesterol (LDL-C) were measured and euglycemic hyperinsulinemic glucose clamp technique were used to determine these effects. Our findings show that oral administration of encapsulated propolis can significantly inhibit the increasing of FBG and TG in T2DM rats and can improve IAI and M value in euglycemic hyperinsulinemic clamp experiment. There was no significant effects on body weight, TC, HDL-C, and LDL-C in T2DM rats treated with encapsulated propolis. In conclusion, the results indicate that encapsulated propolis can control blood glucose, modulate lipid metabolism, and improve the insulin sensitivity in T2DM rats.


2019 ◽  
Vol 33 (4) ◽  
pp. 1173-1181 ◽  
Author(s):  
Zohreh Adab ◽  
Shahryar Eghtesadi ◽  
Mohammad‐Reza Vafa ◽  
Iraj Heydari ◽  
Asieh Shojaii ◽  
...  

2012 ◽  
Vol 50 (5) ◽  
pp. 825-826
Author(s):  
Turgay Ulas ◽  
Mehmet Sinan Dal ◽  
Irfan Tursun ◽  
Mehmet Emin Demir ◽  
Hakan Buyukhatipoglu

Sign in / Sign up

Export Citation Format

Share Document