scholarly journals Genetic Permissiveness and Dietary Glycemic Load Interact to Predict Type-II Diabetes in the Nile rat (Arvicanthis niloticus)

Nutrients ◽  
2019 ◽  
Vol 11 (7) ◽  
pp. 1538 ◽  
Author(s):  
Subramaniam ◽  
Landstrom ◽  
Hayes

Objective: The Nile rat (Arvicanthis niloticus) is a superior model for Type-II Diabetes Mellitus (T2DM) induced by diets with a high glycemic index (GI) and glycemic load (GLoad). To better define the age and gender attributes of diabetes in early stages of progression, weanling rats were fed a high carbohydrate (hiCHO) diet for between 2 to 10 weeks. Methods. Data from four experiments compared two diabetogenic semipurified diets (Diet 133 (60:20:20, as % energy from CHO, fat, protein with a high glycemic load (GLoad) of 224 per 2000 kcal) versus Diets 73MBS or 73MB (70:10:20 with or without sucrose and higher GLoads of 259 or 295, respectively). An epidemiological technique was used to stratify the diabetes into quintiles of blood glucose (Q1 to Q5), after 2-10 weeks of dietary induction in 654 rats. The related metagenetic physiological growth and metabolic outcomes were related to the degree of diabetes based on fasting blood glucose (FBG), random blood glucose (RBG), and oral glucose tolerance test (OGTT) at 30 minutes and 60 minutes. Results. Experiment 1 (Diet 73MBS) demonstrated that the diabetes begins aggressively in weanlings during the first 2 weeks of a hiCHO challenge, linking genetic permissiveness to diabetes susceptibility or resistance from an early age. In Experiment 2, ninety male Nile rats fed Diet 133 (60:20:20) for 10 weeks identified two quintiles of resistant rats (Q1,Q2) that lowered their RBG between 6 weeks and 10 weeks on diet, whereas Q3-Q5 became progressively more diabetic, suggesting an ongoing struggle for control over glucose metabolism, which either stabilized or not, depending on genetic permissiveness. Experiment 3 (32 males fed 70:10:20) and Experiment 4 (30 females fed 60:20:20) lasted 8 weeks and 3 weeks respectively, for gender and time comparisons. The most telling link between a quintile rank and diabetes risk was telegraphed by energy intake (kcal/day) that established the cumulative GLoad per rat for the entire trial, which was apparent from the first week of feeding. This genetic permissiveness associated with hyperphagia across quintiles was maintained throughout the study and was mirrored in body weight gain without appreciable differences in feed efficiency. This suggests that appetite and greater growth rate linked to a fiber-free high GLoad diet were the dominant factors driving the diabetes. Male rats fed the highest GLoad diet (Diet 73MB 70:10:20, GLoad 295 per 2000 kcal for 8 weeks in Experiment 3], ate more calories and developed diabetes even more aggressively, again emphasizing the Cumulative GLoad as a primary stressor for expressing the genetic permissiveness underlying the diabetes. Conclusion: Thus, the Nile rat model, unlike other rodents but similar to humans, represents a superior model for high GLoad, low-fiber diets that induce diabetes from an early age in a manner similar to the dietary paradigm underlying T2DM in humans, most likely originating in childhood.

Author(s):  
Sudharshan Reddy Nelli ◽  
Nilesh Kumar Sharma ◽  
Manoj Kumar P ◽  
Surya S Singh

Introduction: The aim of the present study is to profile the serum antioxidative enzymes, catalase (CAT), glutathione peroxidase (GPx), and superoxide dismutase (SOD) level in Type II diabetes mellitus patients in comparison to healthy volunteers in the South Indian population.Methodology: A prospective, observational, case–control study was conducted for 1 year with a total of 120 patients including 90 Type II diabetes patients (case group) and 30 healthy volunteers (control group). Blood was collected from these volunteers, and serum levels of CAT, GPx, and SOD were estimated. In addition, they were also monitored for the fasting blood glucose, glycated hemoglobin (HbA1c), and postprandial blood glucose. Data were statistically analyzed applying unpaired t-test and Pearson correlation with the statistical significance of p<0.05.Results: The diabetes patient group showed significant higher levels of glycated hemoglobin, fasting blood glucose and postprandial blood glucose (p<0.0001). There was asignificant lower level in the RBC levels of superoxide dismutase in case group compared to control group 3859.00±381.8 (mean+SD) and 5862.7±209.45 (mean+SD) Units per gram Hb, (t-value 27.35, p-Value <0.0001). Catalase and Glutathione peroxidase RBC levels also showed significant lower levels in the case group compared to the control group (catalase 212.7±19.08 (mean±SD) and 396.47±10.83 (mean±SD) Units per gram Hb; T value=50.07 and p<0.0001)(Glutathione peroxidase11.7 ±01.09 (mean +SD) and 18.6 ± 01.00 (mean +SD) Units per gram Hb; t value=30.26 and p<0.0001).Conclusion: A significant reduction in serum levels of antioxidative enzymes, CAT, GPx, and SOD was observed in the South Indian Type II diabetes patient population.


2018 ◽  
Vol 9 (8) ◽  
pp. 4469-4479 ◽  
Author(s):  
Shirin Pourafshar ◽  
Neda S. Akhavan ◽  
Kelli S. George ◽  
Elizabeth M. Foley ◽  
Sarah A. Johnson ◽  
...  

Daily consumption of one large egg for 12 weeks improves fasting blood glucose, ATP-binding cassette protein family A1, and apolipoprotein A1 in overweight or obese individuals with pre- and type II diabetes.


2020 ◽  
Vol 36 (3) ◽  
Author(s):  
Alia Ali Muhammed ◽  
Azeem Taj ◽  
Muhammed Uthman Ahmed ◽  
Elsa Tabrez

Objectives: To determine the frequency of impaired fasting glucose in first degree relatives of people with Type-II diabetes and its association with BMI. Methods: This cross-sectional study was conducted in Diabetic clinic of Shaikh Zayed Hospital, Lahore from July to December 2017. Individuals aged ≥35 years, first degree relatives of people with Type-II diabetes, were selected and their fasting blood glucose levels were checked twice a week apart. Study participants were divided into 3 groups. Group-I were those with normal fasting blood glucose (FBS: <100mg/dl), Group-II were those with impaired fasting glucose (100-125mg/dl), considered as high risk and Group-III included those who turned out to be having frank diabetes (FBS: ≥126mg/dl). Exclusion criteria were known diabetes and pregnancy. Proportions of impaired fasting glucose levels versus BMI were compared using Chi-square test. Significance was considered at P <0.001. Results: A total of hundred subjects were included in the study with the mean age of 44.27 years. Sixty percent participants had normal FBS, 31% showed impaired FBS and 09% had frank diabetes (P <0.001). Significant association was found between impaired fasting glucose and BMI, as with increasing BMI the frequency of impaired fasting glucose increases. Conclusion: First-degree relatives of people with Type-II diabetes showed higher frequency of impaired fasting glucose and obesity was an important risk factor. doi: https://doi.org/10.12669/pjms.36.3.57 How to cite this:Ali A, Taj A, Ahmed MU, Tabrez E. Frequency of impaired fasting glucose in first degree relatives of Type-II diabetic patients and its association with Body Mass Index. Pak J Med Sci. 2020;36(3):407-411. doi: https://doi.org/10.12669/pjms.36.3.57 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


2006 ◽  
Vol 111 (2) ◽  
pp. 119-126 ◽  
Author(s):  
Stephan F. E. Praet ◽  
Ralph J. F. Manders ◽  
Ruth C. R. Meex ◽  
A. G. Lieverse ◽  
Coen D. A. Stehouwer ◽  
...  

The aim of the present study was to assess the level of glycaemic control by the measurement of 24 h blood glucose profiles and standard blood analyses under identical nutritional and physical activity conditions in patients with Type II diabetes and healthy normoglycaemic controls. A total of 11 male patients with Type II diabetes and 11 healthy matched controls participated in a 24 h CGMS (continuous subcutaneous glucose-monitoring system) assessment trial under strictly standardized dietary and physical activity conditions. In addition, fasting plasma glucose, insulin and HbA1c (glycated haemoglobin) concentrations were measured, and an OGTT (oral glucose tolerance test) was performed to calculate indices of whole-body insulin sensitivity, oral glucose tolerance and/or glycaemic control. In the healthy control group, hyperglycaemia (blood glucose concentration >10 mmol/l) was hardly present (2±1% or 0.4±0.2/24 h). However, in the patients with Type II diabetes, hyperglycaemia was experienced for as much as 55±7% of the time (13±2 h over 24 h) while using the same standardized diet. Breakfast-related hyperglycaemia contributed most (46±7%; P<0.01 as determined by ANOVA) to the total amount of hyperglycaemia and postprandial glycaemic instability. In the diabetes patients, blood HbA1c content correlated well with the duration of hyperglycaemia and the postprandial glucose responses (P<0.05). In conclusion, CGMS determinations show that standard measurements of glycaemic control underestimate the amount of hyperglycaemia prevalent during real-life conditions in Type II diabetes. Given the macro- and micro-vascular damage caused by postprandial hyperglycaemia, CGMS provides an excellent tool to evaluate alternative therapeutic strategies to reduce hyperglycaemic blood glucose excursions.


BioChem ◽  
2021 ◽  
Vol 1 (3) ◽  
pp. 238-249
Author(s):  
Olubanke O. Ogunlana ◽  
Babatunde O. Adetuyi ◽  
Elohor F. Esalomi ◽  
Miracle I. Rotimi ◽  
Jacob O. Popoola ◽  
...  

Background: Diabetes is associated with chronic hyperglycaemia, long-term damage, dysfunction, and organ failure. This study aims to evaluate the antidiabetic activity of the twigs of Andrographis paniculata and its toxicological markers on Streptozotocin (STZ)-induced diabetic Albino rats. Methods: A total of thirty rats were randomly divided into five groups of six animals each. Non-diabetic animals were treated with distilled water as non-diabetic sham control group 1, while diabetic animals (group 2, 3, 4 and 5) were treated with 60 mg/kg bw STZ intravenous (iv) and 100 mg/kg body weight (bwt) of metformin orally for group 2, distilled water for group 3, and 250 and 500 mg/kg bwt of Andrograhis paniculata (A. paniculata) for groups 4 and 5, respectively. The animals were dosed for 28 days, after which they were sacrificed. Liver and kidney function tests as well as livid profile tests were used as the biomarkers of toxicological assessment. Fasting blood glucose was carried out weekly. Oral Glucose Tolerance Test (OGTT) was conducted on the 28th day of the antidiabetic assessment. Results: A. paniculata groups 4 and 5 were significant at different doses (p < 0.05) in reducing the blood glucose level in comparison with metformin. There were significant changes in total and direct bilirubin, total protein, potassium, triglyceride and inorganic phosphorus in 500 mg/kg bwt of the treated group in comparison with the metformin and diabetic group groups. A. paniculata at 500 mg/kg bwt is most effective for its antidiabetic and organ protecting effects.


2019 ◽  
Author(s):  
Hasneli . ◽  
Safyanti . ◽  
Ainil Mardhiyah

This study aims to determine the effectivity of tomato and guava juice combination with guava juice on blood glucose levels of patients with type II diabetes mellitus in the work area of Kuranji Padang Health Center in 2019. This quasi-experimental study used a pretest-posttest design with a control group. The population of this study was all patients with type II diabetes mellitus in the working area of Kuranji Health Center, Padang City. Sampling is done by purposive sampling. The number of samples was 24 people, divided into treatment groups and a control group. The data obtained were analyzed by two different dependent tests and an independent t-test. The results of statistical tests showed that there were significant differences between the average decrease in fasting blood glucose levels of respondents who were given tomato and guava combination juice with respondents who were given guava juice (p = 0,026). People with diabetes mellitus are expected to consume tomato and guava combination juice as a form of complementary therapy.


Sign in / Sign up

Export Citation Format

Share Document