scholarly journals d-Fagomine lowers postprandial blood glucose and modulates bacterial adhesion

2011 ◽  
Vol 107 (12) ◽  
pp. 1739-1746 ◽  
Author(s):  
Livia Gómez ◽  
Eunice Molinar-Toribio ◽  
María Ángeles Calvo-Torras ◽  
Carles Adelantado ◽  
M. Emília Juan ◽  
...  
Keyword(s):  
Body Weight ◽  
Blood Glucose ◽  
Intestinal Mucosa ◽  
Bacterial Adhesion ◽  
Pathogenic Bacteria ◽  
Blood Glucose Concentration ◽  
Postprandial Blood Glucose ◽  
Dependent Manner ◽  
Food Component

d-Fagomine is an iminosugar originally isolated from seeds of buckwheat (Fagopyrum sculentumMoench), present in the human diet and now available as a pure crystalline product. We testedd-fagomine for activities connected to a reduction in the risk of developing insulin resistance, becoming overweight and suffering from an excess of potentially pathogenic bacteria. The activities were: intestinal sucrase inhibitionin vitro(rat mucosa and everted intestine sleeves), modulation of postprandial blood glucose in rats, bacterial agglutination and bacterial adhesion to pig intestinal mucosa. When ingested together with sucrose or starch,d-fagomine lowered blood glucose in a dose-dependent manner without stimulating insulin secretion.d-Fagomine reduced the area under the curve (0–120 min) by 20 % (P < 0·01) and shifted the time to maximum blood glucose concentration (Tmax) by 15 min at doses of 1–2 mg/kg body weight when administered together with 1 g sucrose/kg body weight. Moreover,d-fagomine (0·14 mm) agglutinated 60 % of Enterobacteriaceae (Escherichia coli,Salmonella entericaserovar Typhimurium) populations (P < 0·01), while it did not show this effect onBifidobacteriumspp. orLactobacillusspp. At the same concentration,d-fagomine significantly (P < 0·001) inhibited the adhesion of Enterobacteriaceae (95–99 % cells in the supernatant) and promoted the adhesion ofLactobacillus acidophilus(56 % cells in the supernatant) to intestinal mucosa.d-Fagomine did not show any effect on bacterial cell viability. Based on all this evidence,d-fagomine may be used as a dietary ingredient or functional food component to reduce the health risks associated with an excessive intake of fast-digestible carbohydrates, or an excess of potentially pathogenic bacteria.

scholarly journals A Practical Perspective for a Conservative Estimate of Blood Glucose Level during Restaurant Dining and Supermarket Shopping

Foods ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 444
Author(s):  
Xiao Chen ◽  
Peng Wu
Keyword(s):  
Blood Glucose ◽  
In Silico ◽  
Blood Glucose Concentration ◽  
Glycemic Load ◽  
Life Quality ◽  
Postprandial Blood Glucose ◽  
In Vitro Test ◽  
Conservative Estimate ◽  
Vitro Test

Foods today are so diverse and enjoyable, making healthy choices difficult. In this perspective, an in vitro-in silico approach for obtaining a conservative estimate of the postprandial blood glucose concentration, which is a realistic estimate nevertheless, after intake of a certain portion of meals is proposed. The rationales and feasibilities of the approach are described and discussed to an extent. The key idea is to first measure the maximum amount of glucose released in an in vitro test under standardized conditions from a specified serving size of a meal or dish or a packaged product sold in a supermarket. The value can then be translated by a literate consumer to the highest estimate of blood glucose rise prior to purchasing or eating through an established in silico blood glucose prediction model in the medical field. The strategy proposed here would help health conscious (diabetics included) and other life quality conscious individuals to make quantitative decisions on consuming the portions of different foods of desire. This strategy may be more effective in reality compared to the conventional GI (Glycemic Index) and GL (Glycemic Load) concepts.

scholarly journals In Vitro & In Vivo Anti-Hyperglycemic Potential of Saponins Cake and Argan Oil from Argania spinosa

Foods ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 1078
Author(s):  
Rabie Kamal ◽  
Mourad Kharbach ◽  
Yvan Vander Heyden ◽  
Huiwen Yu ◽  
Abdelaziz Bouklouze ◽  
...  
Keyword(s):  
Body Weight ◽  
Blood Glucose ◽  
Glucose Concentration ◽  
Blood Glucose Concentration ◽  
Chemical Properties ◽  
Diabetic Mice ◽  
Argania Spinosa ◽  
Argan Oil

The Argan tree (Argania spinosa. L) is an evergreen tree endemic of southwestern Morocco. For centuries, various formulations have been used to treat several illnesses including diabetes. However, scientific results supporting these actions are needed. Hence, Argan fruit products (i.e., cake byproducts (saponins extract) and hand pressed Argan oil) were tested for their in-vitro anti-hyperglycemic activity, using α-glucosidase and α-amylase assays. The in-vivo anti-hyperglycemic activity was evaluated in a model of alloxan-induced diabetic mice. The diabetic animals were orally administered 100 mg/kg body weight of aqueous saponins cake extract and 3 mL/kg of Argan oil, respectively, to evaluate the anti-hyperglycemic effect. The blood glucose concentration and body weight of the experimental animals were monitored for 30 days. The chemical properties and composition of the Argan oil were assessed including acidity, peroxides, K232, K270, fatty acids, sterols, tocopherols, total polyphenols, and phenolic compounds. The saponins cake extract produced a significant reduction in blood glucose concentration in diabetic mice, which was better than the Argan oil. This decrease was equivalent to that detected in mice treated with metformin after 2–4 weeks. Moreover, the saponins cake extract showed a strong inhibitory action on α-amylase and α-glucosidase, which is also higher than that of Argan oil.

Oleic acid increases uptake and decreases the P-gp-mediated efflux of the veterinary anthelmintic Ivermectin

Drug Research ◽  
2018 ◽  
Vol 69 (03) ◽  
pp. 173-180 ◽  
Author(s):  
Bilal Houshaymi ◽  
Nadine Nasreddine ◽  
Mamdouh Kedees ◽  
Zeina Soayfane
Keyword(s):  
Oleic Acid ◽  
Intestinal Mucosa ◽  
Drug Formulation ◽  
Dependent Manner ◽  
Cancer Resistance ◽  
P Glycoprotein ◽  
Resistance Protein ◽  
Complex Micelles

AbstractThe bioavailability of ivermectin is modulated by lipid-based formulations and membrane efflux transporters such as Breast Cancer Resistance Protein and P-glycoprotein (BCRP and P-gp). We have investigated the effect of oleic acid on the uptake of ivermectin in vitro using Caco-2 cells and in vivo in the intestines of wild-type mice. Complex micelles (M) with oleic acid induced a significant increase (e. g. for M3 was 7-fold, p≤0.001) in the uptake of the drug in a time-dependent manner with no involvement of cholesterol in the mechanism. In vivo results showed a significant increase in the concentration of plasma and intestinal mucosa ivermectin (p≤0.01) in mice receiving oleic acid-based drug formulation. We also examined the expression of the drug efflux transporter, BCRP and P-gp in Caco-2 cells and found a significant decrease (p≤0.001) in their level in the presence of 5 mM oleic acid. Treatment of mice with oleic acid-based formulation showed a significant decrease in the activity of P-gp in the intestinal mucosa (p≤0.01). This study highlighted the effect of oleic acid in decreasing the expression and the activity of P-gp-mediated ivermectin efflux and in limiting the drug absorption by increasing its uptake and bioavailability in Caco-2 cells and intestine, respectively.

scholarly journals Inhibition ofα-Glucosidase by Thiosulfinate as a Target for Glucose Modulation in Diabetic Rats

2016 ◽  
Vol 2016 ◽  
pp. 1-5 ◽  
Author(s):  
Abdulrahman L. Al-Malki
Keyword(s):  
Body Weight ◽  
Blood Glucose ◽  
Hydrolytic Enzyme ◽  
Positive Control ◽  
Diabetic Rats ◽  
Postprandial Hyperglycemia ◽  
Postprandial Blood Glucose ◽  
Control Group ◽  
Albino Rats ◽  
Predisposing Factor

Postprandial hyperglycemia is a predisposing factor for vascular dysfunction and organ damage.α-glucosidase is a hydrolytic enzyme that increases the glucose absorption rate and subsequently elevates blood glucose levels. Garlic (Allium sativumL.) is a rich source of several phytonutrients, including thiosulfinate (THIO). The aim of this study was to evaluate the ability of THIO, a potent inhibitor of intestinalα-glucosidase, to reduce postprandial blood glucose. Male albino rats were randomly assigned to five different groups (n=10/group). Group 1 served as the control group. Groups 2–5 were injected intraperitoneally with a single dose of streptozotocin (STZ) to induce diabetes. Group 2 comprised untreated diabetic rats. Groups 3 and 4 contained diabetic rats that were given THIO orally (20 mg/kg body weight/day and 40 mg/kg body weight/day, resp.). Group 5 was the positive control having diabetic rats treated orally with acarbose (10 mg/kg body weight/day; positive control). Diabetic rats treated with THIO displayed a significant blood glucose reduction (p<0.001and < 0.01 by analysis of variance, resp.) and a significant elevation in insulin compared with that of untreated rats. THIO is an effective noncompetitive intestinalα-glucosidase inhibitor that promotes hypoglycemic action (p<0.001) in STZ-injected rats. THIO is a promising agent for the management of postprandial hyperglycemia.

scholarly journals The Research of Improved Grey GM (1, 1) Model to Predict the Postprandial Glucose in Type 2 Diabetes

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Yannian Wang ◽  
Fenfen Wei ◽  
Changqing Sun ◽  
Quanzhong Li
Keyword(s):  
Type 2 Diabetes ◽  
Blood Glucose ◽  
Prediction Model ◽  
Glucose Concentration ◽  
Blood Glucose Concentration ◽  
Original Data ◽  
Postprandial Glucose ◽  
Postprandial Blood Glucose ◽  
Glucose Prediction

Diabetes may result in some complications and increase the risk of many serious health problems. The purpose of clinical treatment is to carefully manage the blood glucose concentration. If the blood glucose concentration is predicted, treatments can be taken in advance to reduce the harm to patients. For this purpose, an improved grey GM (1, 1) model is applied to predict blood glucose with a small amount of data, and especially in terms of improved smoothness it can get higher prediction accuracy. The original data of blood glucose of type 2 diabetes is acquired by CGMS. Then the prediction model is established. Finally, 50 cases of blood glucose from the Henan Province People’s Hospital are predicted in 5, 10, 15, 20, 25, and 30 minutes, respectively, in advance to verify the prediction model. The prediction result of blood glucose is evaluated by the EGA, MSE, and MAE. Particularly, the prediction results of postprandial blood glucose are presented and analyzed. The result shows that the improved grey GM (1, 1) model has excellent performance in postprandial blood glucose prediction.

An In Vitro Study on the Effects of Selected Natural Dietary Fiber from Salad Vegetables for Lowering Intestinal Glucose and Lipid Absorption

2021 ◽  
Vol 12 ◽  
Author(s):  
Pannapa Powthong ◽  
Bajaree Jantrapanukorn ◽  
Pattra Suntornthiticharoen ◽  
Chitradee Luprasong
Keyword(s):  
Physical Properties ◽  
Dietary Fiber ◽  
Lipid Absorption ◽  
Postprandial Blood Glucose ◽  
Dependent Manner ◽  
Total Dietary Fiber ◽  
Water Binding ◽  
Breakdown Rates ◽  
Salad Vegetables

Background: Salad vegetables are good sources of dietary fiber and are becoming increasingly popular among consumers. Therefore, these plants have the potential to be developed as functional foods. Objective: Using an in vitro model, this study investigated the physical properties and intestinal glucose and lipid absorption capacities of dry dietary fiber from vegetables typically consumed in salads (types of lettuce, including red oak, red coral, green oak, butterhead, and cos). Method: Fiber was prepared from each type of lettuce using an enzymatic method and then characterized. Physical properties, including solubility and water-binding, swelling, cation-exchange, and oil-binding capacities, and antihyperglycemic and antihypercholesterolemic effects of fiber were investigated. Results: The hydration capacity of total dietary fiber and insoluble fiber from the majority of sources was significantly different from that of cellulose. Adsorption and diffusion of glucose were directly proportional to incubation time, and the diffusion rate was significantly lower in the treatments containing fiber compared to the cellulose control. Fiber from these vegetables also inhibited amylase and alpha-glucosidase activities. Moreover, fiber from all sources exhibited significantly higher sodium cholate and cholesterol-binding capacity compared to cellulose, and also retarded pancreatic cholesterol esterase activity in a concentration-dependent manner. Conclusion: This study demonstrates that natural dietary fiber from salad vegetables can reduce glucose and lipid absorption and breakdown rates, thus preventing increases in postprandial blood glucose and cholesterol levels, which can be beneficial to human health.

scholarly journals BANANA PEEL FLAKES ALLEVIATE BLOOD GLUCOSE AND STRESS IN A DOSE-DEPENDENT MANNER

2020 ◽  
pp. 75-81
Author(s):  
ANDREANYTA MELIALA ◽  
YUSTINA ANDWI ARI SUMIWI ◽  
PARAMITA NARWIDINA ◽  
SRI LESTARI SULISTYO RINI ◽  
WIDIASTUTI SETYANINGSIH
Keyword(s):  
Blood Glucose ◽  
Glucose Concentration ◽  
Blood Glucose Concentration ◽  
Diabetic Control ◽  
Diabetic Rats ◽  
Banana Peel ◽  
Standard Diet ◽  
Dependent Manner ◽  
Immobility Time ◽  
Healthy Control

Objective: This study aimed to evaluate the antidiabetic and antidepressant effects of banana peel flakes in streptozotocin-induced diabetic rats. Methods: Twenty-five male Wistar rats were classified into five groups with different treatments. Groups I to IV were diabetic rats model groups that consumed only standard diet, standard diet containing 5%, 10%, and 20% of banana peel flakes, respectively. While group V was a healthy control group fed a standard diet. Immunohistochemistry staining was measured to examine serotonin expression in the colon and pancreas. Results: The diabetic rats treated with 20% banana peel flakes had a lower blood glucose concentration (p<0.05) compared with diabetic control and showed a shorter duration of immobility time (p<0.05) than the healthy control. Additionally, compared with diabetic control, the diabetic rats treated with 5% banana peel flakes showed higher serotonin expression (p<0.05) in the colon. In contrast, serotonin expression in the pancreas did not show any significant difference (p>0.05). Conclusion: The present study disclosed that the banana peel flakes provided an antidepressant effect in the diabetic rats model, which might occur through the mechanism of controlling blood glucose concentration.

Astaxanthin enhances catalase activity in retinal tissue of experimental diabetic rats

2017 ◽  
Vol 2 (2) ◽  
pp. 147
Author(s):  
Shahnaz Mojarrab ◽  
Farideh Bahrami ◽  
Ali Khoshbaten ◽  
Mohammad Tagi Mohammadi ◽  
Fatemah Salem ◽  
...  
Keyword(s):  
Body Weight ◽  
Blood Glucose ◽  
Blood Glucose Concentration ◽  
Lethal Dose ◽  
Treated Group ◽  
Diabetic Rats ◽  
Fluid Retention ◽  
Diabetic Group ◽  
Retinal Ganglion ◽  
Retinal Tissue

It has been shown that diabetes causes a decrease in antioxidant capacity. Since the decrease of antioxidant capacities are related to the pathology of diabetic retinopathy; we aimed to evaluate the effect of Astaxanthin (ASTA), a powerful natural antioxidant, on catalase content in retinal tissue. Forty-eight rats were randomly divided into four groups (n =8-12 for each group): Control, Control-treated, Diabetic and Diabetic-treated groups. Diabetes was induced by a single injection of streptozotocin (50 mg/kg body weight, intravenously). Animals with a blood glucose more than 350 mg were selected as diabetic animals. Treatment with ASTA, (20 mg/kg) was administrated orally once a day by gavages over six weeks. After six weeks the final blood glucose concentration and body weight were measured. The animals were then euthanized by a lethal dose of Ketamine and Diazepam, the eyeballs removed and the retinas quickly extracted for catalase (CAT) measurement and histopathological assessments. Hyperglycemia decreased the enzymatic activity of CAT in retinal tissue of the Diabetic group but, with ASTA treatment, it returned toward normal value and ASTA treatment in Control-treated group increased the CAT capacity significantly. Retinal ganglion cell layer (RGC) in both Diabetic and Diabetic-treated groups showed fluid retention and edema but in the Diabetic-treated group, it was lower than inthe Diabetic group. We suggest that the increase of CAT activity and decrease of fluid retention in the Diabetic-treated group compared with the Diabetic group are related to the ability of ASTA to balance excess ROS production.

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