Daily consumption of monoglucosyl-rutin prevents high-fat diet-induced obesity by suppressing gastric inhibitory polypeptide secretion in mice

2018 ◽  
Vol 8 (7) ◽  
pp. 353 ◽  
Author(s):  
Daigo Yokoyama ◽  
Wataru Tanaka ◽  
Yushi Hashizume ◽  
Mahamadou Tandia ◽  
Masanobu Sakono ◽  
...  

Background: Alpha monoglucosyl-rutin (4G-α-D-glucopyranosyl rutin, αMR) has been shown to stimulate antioxidant defenses and anti-glycation. We evaluated the effects of αMR on body weight gain in mice.Methods: Male C57BL/6J mice were divided into four groups: Control low-fat diet, low-fat diet + 0.5% αMR, high-fat diet, and high-fat diet + 0.5% αMR. Blood chemistry, hepatic lipids, and serum metabolic hormones and cytokines were evaluated after 4 and 13 weeks.Results: After 6 weeks, the high-fat diet group gained more weight than the low-fat diet group. Supplementing the high-fat diet with αMR suppressed weight gain by week 13. Visceral fat weight was higher in the high-fat diet group on weeks 4 and 13, while αMR supplementation inhibited increase on week 13 but not on week 4. Serum levels of gastric inhibitory polypeptide were higher in the high-fat-diet group than in the low-fat-diet group. αMR supplementation inhibited this elevation and regulated levels of serum leptin and hepatic triglycerides.Conclusion: For the first time, we demonstrated how daily consumption of αMR inhibits diet-induced visceral fat accumulation by regulating the secretion of gastric inhibitory polypeptide, which thereby prevents excess weight gain. Therefore, αMR may be a promising potential functional food.Keywords: Anti-obesity; gastric inhibitory polypeptide; mouse; alpha monoglucosyl-rutin; quercetin

2020 ◽  
Author(s):  
Youngmin Han ◽  
Jong Ho Lee ◽  
Minjoo Kim

Abstract Background and Aims: The current nutritional intervention study was designed to determine the effect of legume on body weight in obese subjects. Methods Randomized controlled study of 12 weeks with 383 participants (body mass index ≥ 25 kg/m2) was enrolled for the study. The intervention program consisted of replacing 1/3 refined rice intake with legumes three times per day as a carbohydrate source in high fat diet group. In contrast, low fat diet group was recommended to eat as their usual diet. Results In high fat diet group, intake of energy and carbohydrate were lower, while the intake of fat and protein were higher. Mean weight loss at 12 weeks was 2.87 ± 0.21 kg and 0.17 ± 0.11 kg in the high fat diet group and low fat diet group, respectively, and was significantly different between groups (P < 0.001). HDL-cholesterol and adiponectin were increased, while glucose, insulin, triglyceride, HOMA-IR index, and 8-epi-PGF2α were decreased at 12 weeks in the high fat diet group compared with baseline. Conclusions The conclusion is that the consumption of legumes may accelerate weight loss accompanied by regulation of adiponectin and 8-epi-PGF2α in obese subjects. Also, increases in plasma adiponectin induced by a larger amount of weight loss may relate to greater activation of insulin resistance. Trial registrations: NCT04392882 (Registered 19 May 2020 - Retrospectively registered, https://clinicaltrials.gov/ct2/show/NCT04392882?cond=NCT04392882&draw=2&rank=1)


2009 ◽  
Vol 296 (4) ◽  
pp. E898-E903 ◽  
Author(s):  
Gabriel Paulino ◽  
Claire Barbier de la Serre ◽  
Trina A. Knotts ◽  
Pieter J. Oort ◽  
John W. Newman ◽  
...  

The vagal afferent pathway is important in short-term regulation of food intake, and decreased activation of this neural pathway with long-term ingestion of a high-fat diet may contribute to hyperphagic weight gain. We tested the hypothesis that expression of genes encoding receptors for orexigenic factors in vagal afferent neurons are increased by long-term ingestion of a high-fat diet, thus supporting orexigenic signals from the gut. Obesity-prone (DIO-P) rats fed a high-fat diet showed increased body weight and hyperleptinemia compared with low-fat diet-fed controls and high-fat diet-induced obesity-resistant (DIO-R) rats. Expression of the type I cannabinoid receptor and growth hormone secretagogue receptor 1a in the nodose ganglia was increased in DIO-P compared with low-fat diet-fed controls or DIO-R rats. Shifts in the balance between orexigenic and anorexigenic signals within the vagal afferent pathway may influence food intake and body weight gain induced by high fat diets.


2015 ◽  
Vol 35 (suppl_1) ◽  
Author(s):  
Megha Murali ◽  
Carla Taylor ◽  
Peter Zahradka ◽  
Jeffrey Wigle

Background and Objective: Arterial stiffness is recognized as being an independent predictor of incipient vascular disease associated with obesity and metabolic syndrome. In obese subjects, the decrease in the plasma level of adiponectin, an anti-diabetic and anti-atherogenic adipokine, is well known. Hence the aim of our study was to examine the effect of loss of adiponectin on the development of arterial stiffness in response to a high fat diet. Methods and Results: Male 8-week old adiponectin knockout (APN KO) and C57BL/6 (control) mice were fed a high fat diet (60% Calories from fat) for 12 weeks to induce obesity and insulin resistance (n=10/group). APN KO and C57BL/6 mice were fed a low fat diet (10% Calories from fat) and used as lean controls (n=10/group). After 12 weeks on the high fat diet, the APN KO mice weighed significantly more than the C57BL/6 mice (45.1±1.3 g vs 40.1±1.1 g, p=0.0008) but there was no difference in the final weights between genotypes fed the low fat diet. APN KO mice on both high and low fat diets for 12 weeks developed insulin resistance as measured by oral glucose tolerance test (Area under curve (AUC) mmol/L х min = 437±70 and 438±57) as compared to the C57BL/6 mice fed low or high fat diets (AUC mmol/L х min = 251±27 and 245±43). Arterial stiffness was determined by Doppler pulse wave velocity analysis of the femoral artery. Pulse wave velocity was increased in APN KO mice fed a high fat diet relative to those fed the low fat diet (12.56±0.78 cm/s vs 9.47±0.95 cm/s, p=0.0035; n=8-10). Pulse wave velocity was not different between C57BL/6 control mice on the low or high fat diets (10.63±0.73 cm/s and 10.86±0.50 cm/s), thus revealing that only mice deficient in adiponectin developed arterial stiffness in response to high fat diet. Conclusions: Potentiation of the vascular stiffness in diet-induced obese APN KO mice indicates that adiponectin has a role in modulating vascular structure and the APN KO mouse models the vascular changes that occur in human obesity and metabolic disorders. Morphometric analysis of the aortic tissues for vessel thickness and expression of extracellular proteins will further validate the potential role of adiponectin on the maintenance of arterial elasticity in addition to its known effect on eNOS mediated vasoprotection.


2018 ◽  
Vol 16 ◽  
pp. 205873921876094 ◽  
Author(s):  
Gang Yu ◽  
Lili Zhu ◽  
Haiyan Li ◽  
Youyou Shao ◽  
Lei Chong ◽  
...  

Overweight/obesity has been suggested as a risk factor for asthma development, and prospective studies have confirmed that high body weight precedes asthma symptoms. However, the nature of the association between overweight/obese status and asthma remains unclear. Animal models of obesity-related asthma are very useful for understanding disease pathophysiology. Although C57/B6J mice are the most widely used animal model for researching obesity-related asthma, gender differences are not always taken into consideration. Therefore, to explore the effect of gender on the development of obesity-related asthma, both female and male C57/B6J mice were used in this study. The mice were fed with a high-fat diet or a low-fat diet as control. Body weight, body length, liver weight, and Lee’s Index were used to evaluate obesity status, and lung histology, lung inflammatory cells infiltration, and inflammatory cytokines in bronchoalveolar lavage fluid (BALF) were examined for asthma evaluation. We found that the mean body weight of male mice on a high-fat diet gradually increased and was significantly higher than control male mice on a low-fat diet ( P < 0.01), while no significant differences were found between female mice at the end of 12 weeks of feeding. Furthermore, the obese asthma group female and male mice exhibited significantly high inflammatory cells infiltration than normal weight or obese female and male mice ( P < 0.01). However, the obese asthma group presented higher Neu infiltration, Th1 cytokine, and interferon gamma (IFNγ) concentrations in BALF than the asthma group in both the genders ( P < 0.01). In conclusion, both female and male mice are suitable for the obesity-related asthma model, although male mice might be more stable. Besides, obesity-related asthma is not Th2 type asthma.


1960 ◽  
Vol 198 (4) ◽  
pp. 765-770 ◽  
Author(s):  
Leon Sokoloff ◽  
Olaf Mickelsen ◽  
Emanuel Silverstein ◽  
George E. Jay ◽  
Richard S. Yamamoto

Experimental obesity was produced in DBA/2JN, STR/N and C57L/HeN mice as well as in Osborne-Mendel rats by several dietary regimens. One of these, containing 60% vegetable fat, increased the amount of degenerative joint disease in the rats and in two strains of mice. No increase of osteoarthritis occurred as a result of a 37.4% fat content in the diet, or from obesity produced by Ingle's diet, which has a relatively low-fat content. The mechanism by which the high-fat diet increased the joint disease is unknown, because neither obesity nor a high-fat diet alone had a deleterious effect on the articulations of the mice. Obese hybrid mice derived from a spontaneously obese and arthritis-prone strain (STR/1N) were resistant to articular degeneration. Dietary restriction of weight gain in the STR/1N mice failed to decrease the osteoarthritis in them.


2008 ◽  
Vol 15 (04) ◽  
pp. 500-507
Author(s):  
MUHAMMAD ANWAR BURIRO ◽  
MUHAMMAD TAYYAB

Objective: To determine the effects of Nigella sativa and sunflower oil diet intake on serum lipid profile in albino rats. Material& Methods: Eighty four albino rats with equal number of males and females were selected for the study, they were divided into six differentgroups, Control groups1,111,V,were given low fat diet(3%),high fat diet(20%), high fat diet supplemented with bile salt (1% colic acid) andantithyroid drug (0.5% propylthiouracil). The Experimental groups were given the above diets with supplemented Nigella sativa. Low fat dietincreased all the lipid fractions significantly when given at12 and 24 weeks duration as compared to 0 week. Results: The high fat diet whengiven at different intervals decreased all lipid fractions significantly as compared to baseline level. The high fat diet with propylthiouracil andbile salt also increased all the lipid fractions and the increase was more as compared to previous groups. The supplements of Nigella sativain the groups decreased all the lipid fractions significantly as compared to the control groups except HDL-c, which was significantly increasedin all the experimental groups as compared to control groups. Conclusion: On the basis of these findings conclusions are made, that Nigellasativa has got TG,TC, and LDL-c lowering and HDL-c raising effects.3% sunflower oil low fat diet has got TG,TC,HDL-c, and LDL-c raisingeffects.20% sunflower oil high fat diet has got TG,TC,HDL-c and LDL-c lowering effects. Both Nigella sativa and sunflower oil have got lowatherogenic index (TC/HDL) and may be recommended in hyperlipidaemic patients or normal individuals.


1999 ◽  
Vol 58 (4) ◽  
pp. 773-777 ◽  
Author(s):  
John E. Blundell ◽  
John Cooling

It is now widely accepted that obesity develops by way of genetic mechanisms conferring specific dispositions which interact with strong environmental pressures. It is also accepted that certain dispositions constitute metabolic risk factors for weight gain. It is less well accepted that certain patterns of behaviour (arising from biological demands or environmental influences) put individuals at risk of developing a positive energy balance and weight gain (behavioural risk factors). Relevant patterns of behaviour include long-lasting habits for selecting and eating particular types of foods. Such habits define two distinct groups characterized as high-fat (HF) and low-fat (LF) phenotypes. These habits are important because of the attention given to dietary macronutrients in body-weight gain and the worldwide epidemic of obesity. Considerable evidence indicates that the total amount of dietary fat consumed remains the most potent food-related risk factor for weight gain. However, although habitual intake of a high-fat diet is a behavioural risk factor for obesity, it does not constitute a biological inevitability. A habitual low-fat diet does seem to protect against the development of obesity, but a high-fat diet does not guarantee that an individual will be obese. Although obesity is much more prevalent among HF than LF, some HF are lean with BMI well within the normal range. The concept of 'different routes to obesity' through a variety of nutritional scenarios can be envisaged, with predisposed individuals varying in their susceptibility to different dietary inputs. In a particular subgroup of individuals (young adult males) HF and LF displayed quite different profiles of appetite control, response to nutrient challenges and physiological measures, including BMR, RQ, heart rate, plasma leptin levels and thermogenic responses to fat and carbohydrate meals. These striking differences suggest that HF and LF can be used as a conceptual tool to investigate the relationship between biology and the environment (diet) in the control of body weight.


1992 ◽  
Vol 263 (4) ◽  
pp. R785-R789 ◽  
Author(s):  
T. A. Buchanan ◽  
J. S. Fisler ◽  
S. Underberger ◽  
G. F. Sipos ◽  
G. A. Bray

To determine whether whole body insulin sensitivity differs between a rat strain that does not (S 5B/Pl) and a strain that does [Osborne-Mendel (OM)] become obese when eating a high-fat diet, we performed euglycemic clamp studies in animals from each strain during low- and high-fat feeding. Clamps were performed after 2 days ("initial clamp") and 9 days ("final clamp") on each diet. Plasma glucose and insulin levels during the final 60 min of initial and final clamps were similar in S 5B/Pl and OM rats regardless of diet. Insulin sensitivity, measured as the glucose clearance rate during the final 60 min of the clamp, averaged 35 +/- 3 ml.kg-1.min-1 in S 5B/Pl rats after 2 days on a low-fat diet. This did not change significantly during an additional 7 days on the low-fat diet. The high-fat diet was associated with a 13% reduction in insulin sensitivity after 2 days and a 30% reduction after 9 days in S 5B/Pl rats. OM rats exhibited similar patterns of insulin sensitivity during low- and high-fat diets, albeit at lower insulin sensitivity overall (P < 0.0005 vs. S 5B/Pl). Mean glucose clearance after 2 days on the low-fat diet was 27 +/- 2 mg.kg-1.min-1 and did not change significantly during seven more days of low-fat feeding. The high-fat diet was associated with a 19% reduction in glucose clearance after 2 days and a 38% reduction after 9 days in OM rats. The magnitude of reduction in insulin sensitivity during high-fat diets did not differ significantly between strains.(ABSTRACT TRUNCATED AT 250 WORDS)


2020 ◽  
Vol 4 (Supplement_2) ◽  
pp. 1699-1699
Author(s):  
Yanwen Wang ◽  
Sandhya Nair ◽  
Jacques Gagnon

Abstract Objectives The present study was designed to examine the effect of herring milt dry powder (HMDP) on glucose homeostasis and related metabolic phenotypes and compare its efficacy with herring milt protein hydrolysate (HMPH) in diet-induced obese and insulin resistant mice. Methods Male C57BL/6 J mice were pretreated with a high-fat diet for 7 weeks were divided into 3 groups where one group continued on the high-fat diet and used as the obese and insulin resistant control (HFC) and the other two groups were fed a modified HFC diet where 70% of casein was replaced with an equal percentage of protein derived from HMDP or HMPH. A group of mice fed a low-fat diet all the time was used as the normal or low-fat control (LFC). Body weight was obtained weekly and food intake was recorded daily. Semi-fating (4–6 hr) blood glucose was measured every other week using a glucometer using the blood from tail vein. Oral glucose tolerance was measured twice during weeks 5 and 9, respectively, and insulin tolerance was determined during week 7 of the treatment. At the end of the experiment, serum was obtained following overnight fasting for the measurement of fasting insulin, leptin, free fatty acids and lipids as well as other glucose metabolism-related biomarkers. Results During the 9-week treatment period, mice on the high-fat diet maintained significantly higher body weight and semi-fasting blood glucose levels and exhibited impaired oral glucose tolerance and insulin resistance relative to mice on the low-fat diet. At the end of the study, the analysis of fasting blood samples revealed that mice on the high-fat diet had increases in serum insulin, leptin, free fatty acids and cholesterol levels. Mice fed the high-fat diet also showed an increase in insulin resistance index and a decrease in β-cell function index. Compared to mice on the high-fat diet, the 70% replacement of dietary casein with an equal percentage of protein derived from HMDP or HMPH reversed or markedly improved these parameters, and HMDP and HMPH showed similar effects. Conclusions The results demonstrate that replacing dietary casein with the same amount of protein derived from either HMDP or HMPH prevents and improves high-fat-diet-induced obesity and insulin resistance. Funding Sources Atlantic Canada Opportunity Agency through the Atlantic Innovation Fund grant (no. 193,594) and National Research Council of Canada – NHP program.


2020 ◽  
Vol 96 (6) ◽  
Author(s):  
Sarah L Becker ◽  
Edna Chiang ◽  
Anna Plantinga ◽  
Hannah V Carey ◽  
Garret Suen ◽  
...  

ABSTRACT Artificial sweeteners have been shown to induce glucose intolerance by altering the gut microbiota; however, little is known about the effect of stevia. Here, we investigate whether stevia supplementation induces glucose intolerance by altering the gut microbiota in mice, hypothesizing that stevia would correct high fat diet-induced glucose intolerance and alter the gut microbiota. Mice were split into four treatment groups: low fat, high fat, high fat + saccharin and high fat + stevia. After 10 weeks of treatment, mice consuming a high fat diet (60% kcal from fat) developed glucose intolerance and gained more weight than mice consuming a low fat diet. Stevia supplementation did not impact body weight or glucose intolerance. Differences in species richness and relative abundances of several phyla were observed in low fat groups compared to high fat, stevia and saccharin. We identified two operational taxonomic groups that contributed to differences in beta-diversity between the stevia and saccharin groups: Lactococcus and Akkermansia in females and Lactococcus in males. Our results demonstrate that stevia does not rescue high fat diet-induced changes in glucose tolerance or the microbiota, and that stevia results in similar alterations to the gut microbiota as saccharin when administered in concordance with a high fat diet.


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