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1.
Article in English | MEDLINE | ID: mdl-32512364

ABSTRACT

n-3 and n-6 polyunsaturated fatty acids (PUFAs) and their lipid mediator metabolites are associated with inflammation. We investigated the effect of dietary intake of plant- and animal-derived n-3 PUFAs and fish protein on the circulatory concentrations of lipid mediators. Seventy-nine subjects with impaired fasting glucose who completed the controlled dietary intervention after randomization to the fatty fish (FF, n=20), lean fish (LF, n=21), Camelina sativa oil (CSO, n=18) or control group (n=20) for 12 weeks were studied. Lipid mediator profiling from fasting plasma samples before and after the intervention was performed by liquid chromatography-mass spectrometry (LC-MS/MS). The FF diet increased concentrations of 18-hydroxyeicosapentaenoic acid (18-HEPE) and 4- and 17-hydroxydocosahexaenoic acid (4-, 17-HDoHE) derived from eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), respectively. Concentrations of lipid mediators derived from α-linolenic acid (ALA) increased and arachidonic acid (AA) derived 5-iso prostaglandin F2α-VI decreased in the CSO group. There were no significant changes in lipid mediators in the LF group. The dietary intake of both plant and animal-based n-3 PUFAs increased circulatory concentrations of lipid mediators with potential anti-inflammatory properties.


Subject(s)
Brassicaceae , Fish Proteins, Dietary/administration & dosage , Glucose Metabolism Disorders/blood , Glucose Metabolism Disorders/diet therapy , Lipids/blood , Plant Oils/administration & dosage , Female , Fish Oils , Humans , Male , Middle Aged
2.
Vopr Pitan ; 89(6): 82-90, 2020.
Article in Russian | MEDLINE | ID: mdl-33476501

ABSTRACT

The hypoglycemic properties of polyphenolic compounds of plant origin are confirmed by the results of numerous preclinical and clinical studies. However, the biological effects of these compounds are limited by their low bioavailability. This makes it urgent to develop methods for its increasing due to new methods of entering polyphenols into the organism, for example, by extracting them from natural sources in the form of extracts and concentrating extracts on food polymer matrices for subsequent use as a functional food ingredient (FFI). The aim of this study was to evaluate in vivo the possible effect of consumption of the obtained FFI in the form of a food matrix - buckwheat flour enriched with bilberry polyphenols - on carbohydrate metabolism disorders induced by a high-fat diet with a high content of easily digestible carbohydrates (sucrose) and anxiety level of male C57Bl/6c mice. Material and methods. The food matrix was obtained by sorption of the bilberry fruits polyphenol extract on buckwheat flour. The total polyphenol content in the composition of food matrix was 8.9±0.7 mg-eq gallic acid/g flour. Total anthocyanin content in the composition of food matrix was 4.6±0.1 mg/g flour. The experiment was conducted for 150 days using 48 male C57Bl/6c mice (weaners). The animals were divided into 3 groups: the control group K1 (n=16, the mice received a standard semi-synthetic diet (22.5% protein, 10% fat, 58% carbohydrates as starch, 362 kcal/100 g), the control group K2 (n=14) and the experimental group G3 (n=18). Disorders of carbohydrate and lipid metabolism in animals of groups K2 and G3 were modeled by feeding an iso-nitrogenous high-fat diet with a high content of easily digestible carbohydrates (HFHC-diet: 22.5% protein, 30% fat, 18% carbohydrates in the form of starch, 20% sucrose, 493 kcal/100 g). FFI, a food matrix in the amount of 6.6 g/100 g of feed, was introduced into the diet of animals of the experimental group G3, which corresponded to the amount of polyphenols equal to 58.7 mg-eq gallic acid/100 g of feed and the content of anthocyanins 30.4 mg/100 g of feed. Once every three weeks, the level of glucose in the blood of animals was monitored. On days 60 and 114 of the experiment, animals were tested on an elevated plus maze. Animals were decapitated under light ether anesthesia at the end of experiment. The content of glycated hemoglobin was determined in the blood. Results and discussion. Animals of both groups treated with HFHC-diet consumed significantly less feed compared with animals of the control group K1 (2.91±0.05 g/day per mouse). Moreover, animals of the experimental group G3 consumed significantly more food (2.51±0.04 g/day per mouse) compared with animals of the control group K2 (2.36±0.04 g/day per mouse). In contrast, the energy consumption of animals of both groups fed HFHC-diet was significantly higher compared to the K1 group (10.5±0.2 kcal/ day per mouse). Energy consumption by animals of group G3 (12.3±0.2 kcal/day per mouse) was significantly higher compared to animals of the control group K2 (11.5±0.2 kcal/day per mouse). The data obtained indicate that the consumption of FFI in the form of polyphenols adsorbed on the food matrix can contribute to increased appetite in animals treated with the high-fat diet. The results of the Elevated Plus Maze test indicated the absence of the effect of polyphenols in the composition of the food matrix on the anxiety level of animals. Starting from day 42 until the end of the experiment, the glucose level in animals of group G3 was significantly lower than the corresponding indicator for animals of the control group K2. Conclusion. In accordance with the results obtained, further studies of the safety and clinical efficacy of including the developed FFI in the form of a food matrix with polyphenols into the composition of specialized foods for the prevention of carbohydrate metabolism disorders are advisable.


Subject(s)
Carbohydrate Metabolism/drug effects , Diet, High-Fat/adverse effects , Fagopyrum/chemistry , Flour , Fruit/chemistry , Functional Food , Glucose Metabolism Disorders , Polyphenols , Vaccinium myrtillus/chemistry , Animals , Glucose Metabolism Disorders/chemically induced , Glucose Metabolism Disorders/diet therapy , Glucose Metabolism Disorders/metabolism , Male , Mice , Polyphenols/chemistry , Polyphenols/pharmacology
3.
Food Funct ; 9(12): 6236-6244, 2018 Dec 13.
Article in English | MEDLINE | ID: mdl-30402638

ABSTRACT

In the current study, the protective effects of diets with low digestible carbohydrates (LDCs) on plasma glucose, plasma fasting insulin, sweet taste receptors, glucose transporters and absorption of carbohydrates in mice that consume sucralose were evaluated. Sucralose (0.4 g L-1) was administered to mice to induce glucose metabolic disorders. The experimental groups were treated with different LDC contents but with the same energy as the normal-chow group. A pair group fed the highest digestible carbohydrate content was designed to illustrate the effect of digestible carbohydrate content on glucose metabolic disorders. Prolonged administration of sucralose led to metabolic dysfunction that was characterized by a significant increase in plasma glucose, insulin resistance, sweet taste receptors, glucose transporters and absorption of carbohydrates. Treatment with LDC feed positively modulated the altered parameters in a dose dependent manner, suggesting the overall beneficial effects of LDC feed on sucralose associated detrimental changes.


Subject(s)
Dietary Carbohydrates/metabolism , Duodenum/metabolism , Glucose Metabolism Disorders/diet therapy , Sucrose/analogs & derivatives , Sweetening Agents/adverse effects , Animals , Blood Glucose/metabolism , Dietary Carbohydrates/analysis , Glucose Metabolism Disorders/etiology , Glucose Metabolism Disorders/metabolism , Humans , Insulin/metabolism , Male , Mice , Mice, Inbred ICR , Sucrose/adverse effects , Sucrose/metabolism , Sweetening Agents/metabolism
4.
Nutr Metab Cardiovasc Dis ; 28(8): 856-863, 2018 08.
Article in English | MEDLINE | ID: mdl-29853430

ABSTRACT

BACKGROUND AND AIM: Despite a growing body of evidence from Western populations on the health benefits of Dietary Approaches to Stop Hypertension (DASH) diets, their applicability in South East Asian settings is not clear. We examined cross-sectional associations between DASH diet and cardio-metabolic risk factors among 1837 Malaysian and 2898 Philippines participants in a multi-national cohort. METHODS AND RESULTS: Blood pressures, fasting lipid profile and fasting glucose were measured, and DASH score was computed based on a 22-item food frequency questionnaire. Older individuals, women, those not consuming alcohol and those undertaking regular physical activity were more likely to have higher DASH scores. In the Malaysian cohort, while total DASH score was not significantly associated with cardio-metabolic risk factors after adjusting for confounders, significant associations were observed for intake of green vegetable [0.011, standard error (SE): 0.004], and red and processed meat (-0.009, SE: 0.004) with total cholesterol. In the Philippines cohort, a 5-unit increase in total DASH score was significantly and inversely associated with systolic blood pressure (-1.41, SE: 0.40), diastolic blood pressure (-1.09, SE: 0.28), total cholesterol (-0.015, SE: 0.005), low-density lipoprotein cholesterol (-0.025, SE: 0.008), and triglyceride (-0.034, SE: 0.012) after adjusting for socio-demographic and lifestyle groups. Intake of milk and dairy products, red and processed meat, and sugared drinks were found to significantly associated with most risk factors. CONCLUSIONS: Differential associations of DASH diet and dietary components with cardio-metabolic risk factors by country suggest the need for country-specific tailoring of dietary interventions to improve cardio-metabolic risk profiles.


Subject(s)
Blood Glucose/metabolism , Blood Pressure , Dietary Approaches To Stop Hypertension , Dyslipidemias/diet therapy , Glucose Metabolism Disorders/diet therapy , Hypertension/diet therapy , Lipids/blood , Metabolic Syndrome/diet therapy , Adolescent , Adult , Biomarkers/blood , Dyslipidemias/blood , Dyslipidemias/epidemiology , Feeding Behavior , Female , Glucose Metabolism Disorders/blood , Glucose Metabolism Disorders/epidemiology , Humans , Hypertension/epidemiology , Hypertension/physiopathology , Malaysia/epidemiology , Male , Metabolic Syndrome/blood , Metabolic Syndrome/epidemiology , Metabolic Syndrome/physiopathology , Middle Aged , Nutritive Value , Philippines/epidemiology , Risk Factors , Treatment Outcome , Young Adult
5.
Braz. j. otorhinolaryngol. (Impr.) ; 82(4): 372-376, July-Aug. 2016. tab
Article in English | LILACS | ID: lil-794987

ABSTRACT

ABSTRACT INTRODUCTION: Global sugar consumption has increased in the past 50 years; its abusive intake is responsible for peripheral insulin resistance, which causes the metabolic syndrome - obesity, diabetes mellitus, hypertension, and coronary heart disease. OBJECTIVE: To evaluate the effect of a fractionated diet without glucose as treatment for labyrinthine disorders associated with glucose-insulin index. METHODS: The study design was a prospective randomized controlled trial. Fifty-one patients were divided into two groups: the diet group (DG), which comprised subjects treated with a fractionated diet with glucose restriction, and the control group (CG), in which individuals were not counseled regarding diet. Patients underwent computerized dynamic posturography (CDP) and visual analog scale (VAS) on the first and 30th days of the study. RESULTS: There was improvement in the assessed posturographic conditions and VAS self-assessment in the DG group after 30 days when compared to the control group. CONCLUSION: The fractionated diet with glucose restriction was effective for the treatment of vestibular dysfunction associated with glucose metabolism disorders.


Resumo Introdução: O consumo mundial de açúcar triplicou nos últimos 50 anos e a sua ingesta abusiva é responsável pela resistência periférica à insulina que origina a síndrome metabólica-obesidade, diabetes mellitus, hipertensão arterial e doenças coronarianas. Objetivo: Avaliar de forma objetiva o efeito da dieta fracionada e sem glicose como forma de tratamento dos distúrbios labirínticos associados às alterações da curva glicoinsulinêmica. Método: Trata-se de um ensaio clínico controlado randomizado prospectivo. Estudo realizado com 51 pacientes divididos em dois grupos: Grupo Dieta composto por indivíduos tratados com dieta fracionada com restrição de glicose e Grupo Controle no qual os indivíduos não foram orientados em relação à dieta. Os pacientes realizaram Posturografia Dinâmica Computadorizada e Escala Análogo Visual no primeiro e trigésimo dias do estudo. Resultados: Foi observada melhora nas condições posturográficas avaliadas e melhora clínica do grupo dieta na análise da escala análogo visual quando comparados grupo dieta e grupo controle. Conclusão: A dieta fracionada e restritiva de glicose mostrou-se eficaz no tratamento das disfunções vestibulares associadas aos distúrbios do metabolismo da glicose.


Subject(s)
Humans , Male , Female , Middle Aged , Vertigo/diet therapy , Glucose Metabolism Disorders/diet therapy , Postural Balance/physiology , Diet, Carbohydrate-Restricted , Case-Control Studies , Vertigo/physiopathology , Prospective Studies , Diagnosis, Computer-Assisted , Glycemic Index , Glucose Metabolism Disorders/complications , Glucose Metabolism Disorders/physiopathology
6.
Curr Opin Clin Nutr Metab Care ; 19(4): 300-2, 2016 07.
Article in English | MEDLINE | ID: mdl-27137896

ABSTRACT

PURPOSE OF REVIEW: This article provides an overview of the most recent human trials that have examined the impact of intermittent fasting on glucose homeostasis. RECENT FINDINGS: Our literature search retrieved one human trial of alternate day fasting, and three trials of Ramadan fasting published in the past 12 months. Current evidence suggests that 8 weeks of alternate day fasting that produces mild weight loss (4% from baseline) has no effect on glucose homeostasis. As for Ramadan fasting, decreases in fasting glucose, insulin, and insulin resistance have been noted after 4 weeks in healthy normal weight individuals with mild weight loss (1-2% from baseline). However, Ramadan fasting may have little impact on glucoregulatory parameters in women with polycystic ovarian syndrome who failed to observe weight loss. SUMMARY: Whether intermittent fasting is an effective means of regulating glucose homeostasis remains unclear because of the scarcity of studies in this area. Large-scale, longer-term randomized controlled trials will be required before the use of fasting can be recommended for the prevention and treatment of metabolic diseases.


Subject(s)
Diet, Reducing , Evidence-Based Medicine , Fasting , Homeostasis , Insulin Resistance , Overweight/prevention & control , Fasting/adverse effects , Female , Glucose Metabolism Disorders/diet therapy , Glucose Metabolism Disorders/metabolism , Glucose Metabolism Disorders/prevention & control , Humans , Islam , Overweight/diet therapy , Overweight/metabolism , Polycystic Ovary Syndrome/diet therapy , Polycystic Ovary Syndrome/metabolism , Weight Loss
7.
Curr Opin Clin Nutr Metab Care ; 19(4): 310-5, 2016 07.
Article in English | MEDLINE | ID: mdl-27168355

ABSTRACT

PURPOSE OF REVIEW: Dietary sugars play a role in noncommunicable diseases and represent a clear target for reduction. In this context, product reformulation can have a positive impact on health. Several technological solutions are available to replace sugar, all with benefits and limitations. The goal of this review is to describe the main sugar replacement alternatives and discuss their impact on health and product physicochemical properties. RECENT FINDINGS: Although high intensity sweeteners and polyols have been used for a long time to replace sucrose and despite no clear evidence of harm, the trend is today to look for alternatives such as sweet enhancers or alternative sugars such as allulose or tagatose, which are both low caloric. To replace the physical properties of sugars, new trends are to substitute widely used maltodextrins by dietary fibres to confer added health benefits. SUMMARY: A wide range of solutions is currently available to replace dietary sugars and compensate for the impact on bulking properties and sweetness profile of food products.


Subject(s)
Food Technology , Non-Nutritive Sweeteners/therapeutic use , Nutritive Sweeteners/therapeutic use , Dietary Fiber/adverse effects , Dietary Fiber/therapeutic use , Food Preferences , Food Technology/trends , Glucose Metabolism Disorders/diet therapy , Glucose Metabolism Disorders/prevention & control , Humans , Non-Nutritive Sweeteners/adverse effects , Nutritive Sweeteners/adverse effects , Overweight/diet therapy , Overweight/prevention & control , Taste
8.
Braz J Otorhinolaryngol ; 82(4): 372-6, 2016.
Article in English | MEDLINE | ID: mdl-26631327

ABSTRACT

INTRODUCTION: Global sugar consumption has increased in the past 50 years; its abusive intake is responsible for peripheral insulin resistance, which causes the metabolic syndrome - obesity, diabetes mellitus, hypertension, and coronary heart disease. OBJECTIVE: To evaluate the effect of a fractionated diet without glucose as treatment for labyrinthine disorders associated with glucose-insulin index. METHODS: The study design was a prospective randomized controlled trial. Fifty-one patients were divided into two groups: the diet group (DG), which comprised subjects treated with a fractionated diet with glucose restriction, and the control group (CG), in which individuals were not counseled regarding diet. Patients underwent computerized dynamic posturography (CDP) and visual analog scale (VAS) on the first and 30th days of the study. RESULTS: There was improvement in the assessed posturographic conditions and VAS self-assessment in the DG group after 30 days when compared to the control group. CONCLUSION: The fractionated diet with glucose restriction was effective for the treatment of vestibular dysfunction associated with glucose metabolism disorders.


Subject(s)
Diet, Carbohydrate-Restricted , Glucose Metabolism Disorders/diet therapy , Postural Balance/physiology , Vertigo/diet therapy , Case-Control Studies , Diagnosis, Computer-Assisted , Female , Glucose Metabolism Disorders/complications , Glucose Metabolism Disorders/physiopathology , Glycemic Index , Humans , Male , Middle Aged , Prospective Studies , Vertigo/physiopathology
10.
Int J Food Sci Nutr ; 67(5): 581-91, 2015 Aug.
Article in English | MEDLINE | ID: mdl-27163964

ABSTRACT

The aim of the current study was to characterize the anthocyanin content and composition of a purple potato landrace cultivar (Solanum tuberosum 'Synkeä Sakari') and to compare the postprandial effects of purple-fleshed potatoes, yellow-fleshed potatoes and bilberries in potato starch on postprandial glycemia and insulinemia in healthy males. The purple potato meal caused smaller insulinemia than the yellow potato meal (iAUC 120 min 1347 and 2226, respectively, p = 0.012 and iAUC 240 min 1448 and 2403, p = 0.007) or the bilberry meal (iAUC 120 min 1920, p = 0.027). The purple potato meal caused a smaller plasma glucose at 40 min postprandially compared with the yellow potato meal (p = 0.044). The results of this study suggest that anthocyanin-containing purple-fleshed potatoes influence the postprandial insulinemia positively. Since potatoes are the world's largest non-grain commodity, replacing yellow-fleshed potatoes with purple-fleshed potatoes as staple food could have large potential in maintaining public health.


Subject(s)
Postprandial Period , Solanum tuberosum/chemistry , Adult , Anthocyanins/administration & dosage , Anthocyanins/blood , Antioxidants/pharmacology , Blood Glucose/metabolism , Color , Cross-Over Studies , Glucose Metabolism Disorders/blood , Glucose Metabolism Disorders/diet therapy , Glycemic Index , Humans , Insulin/blood , Male , Nutritive Value , Phenols/administration & dosage , Phenols/blood , Single-Blind Method , Solanum tuberosum/classification , Vaccinium myrtillus/chemistry , Young Adult
11.
Br J Nutr ; 111(12): 2047-58, 2014 Jun 28.
Article in English | MEDLINE | ID: mdl-24666665

ABSTRACT

The aim of the present systematic review and meta-analysis was to examine the long-term effects (≥ 12 months) of high-fat (HF) v. low-fat (LF) diet consumption on the indicators of glycaemic control as well as cardiovascular risk factors in pre-diabetic and diabetic individuals. Literature search was carried out using the electronic databases MEDLINE, Embase and the Cochrane Trial Register until November 2013. Study-specific weighted mean differences (MD) were pooled using a random-effects model of the Cochrane software package Review Manager 5.1 and Stata 12.0 was used for meta-regressions. A total of fourteen trials met the inclusion criteria and a maximum of 1753 subjects were included in the meta-analysis. HF regimens were found to result in a significant decrease in TAG levels (MD -0·19 mmol/l, 95 % CI -0·23, -0·14, P< 0·001; I² = 0 %, P= 0·58) and diastolic blood pressure (MD -1·30 mmHg, 95 % CI -1·73, -0·87, P< 0·001; I² = 0 %, P= 0·60) and a significant increase in HDL-cholesterol levels (MD 0·05 mmol/l, 95 % CI 0·01, 0·08, P= 0·01; I² = 57 %, P= 0·01). In addition, MD in the reductions of fasting glucose levels (-0·41 mmol/l, 95 % CI -0·74, -0·08, P= 0·01; I² = 56 %, P= 0·02) were significantly high in patients with type 2 diabetes adhering to a HF diet. HF and LF diets might not be of equal value in the management of either pre-diabetes or type 2 diabetes, leading to emphasis being placed on the recommendations of HF diets.


Subject(s)
Cardiovascular Diseases/prevention & control , Diabetic Angiopathies/prevention & control , Diabetic Cardiomyopathies/prevention & control , Diet, Fat-Restricted , Diet, High-Fat , Evidence-Based Medicine , Glucose Metabolism Disorders/diet therapy , Cardiovascular Diseases/complications , Cardiovascular Diseases/epidemiology , Cholesterol, HDL/blood , Diabetes Mellitus, Type 2/blood , Diabetes Mellitus, Type 2/complications , Diabetes Mellitus, Type 2/diet therapy , Diabetic Angiopathies/epidemiology , Diabetic Cardiomyopathies/epidemiology , Diet, Diabetic/adverse effects , Diet, Fat-Restricted/adverse effects , Diet, High-Fat/adverse effects , Glucose Metabolism Disorders/blood , Glucose Metabolism Disorders/complications , Humans , Hyperglycemia/prevention & control , Hypertension/complications , Hypertension/prevention & control , Hypertriglyceridemia/complications , Hypertriglyceridemia/prevention & control , Prediabetic State/blood , Prediabetic State/complications , Prediabetic State/diet therapy , Randomized Controlled Trials as Topic , Risk Factors
12.
Br J Nutr ; 109(3): 487-92, 2013 Feb 14.
Article in English | MEDLINE | ID: mdl-23021205

ABSTRACT

The purpose of the present study was to evaluate the impact of a lifestyle intervention programme, combined with a daily low-glycaemic index meal replacement, on body-weight and glycaemic control in subjects with impaired glucose regulation (IGR). Subjects with IGR were randomly assigned to an intervention group (n 46) and a control group (n 42). Both groups received health counselling at baseline. The intervention group also received a daily meal replacement and intensive lifestyle intervention to promote healthy eating habits during the first 3 months of the study, and follow-up visits performed monthly until the end of the 1-year study. Outcome measurements included changes in plasma glucose, glycated Hb (HbA1c), plasma lipids, body weight, blood pressure and body composition (such as body fat mass and visceral fat area). The results showed that body-weight loss after 1 year was significant in the intervention group compared with the control group (-1·8 (SEM 0·35) v. -0·6 (SEM 0·40) 2·5 kg, P<0·05). The 2 h plasma glucose concentration decreased 1·24 mmol/l in the intervention group and increased 0·85 mmol/l in the control group (P<0·05) compared with their baseline, respectively. A 5 kg body-weight loss at 1 year was associated with a decrease of 1·49 mmol/l in 2 h plasma glucose (P<0·01). The incidence of normal glucose regulation (NGR) in the two groups was significantly different (P=0·001). In conclusion, the combination of regular contact, lifestyle advice and meal replacement is beneficial in promoting IGR to NGR.


Subject(s)
Diabetes Mellitus, Type 2/prevention & control , Diet, Diabetic , Diet, Reducing , Glucose Metabolism Disorders/therapy , Life Style , Obesity/therapy , Aged , Beverages , Body Mass Index , Breakfast , China , Combined Modality Therapy , Diabetes Mellitus, Type 2/etiology , Disease Progression , Female , Follow-Up Studies , Glucose Metabolism Disorders/complications , Glucose Metabolism Disorders/diet therapy , Glucose Metabolism Disorders/physiopathology , Glycemic Index , Health Promotion , Humans , Male , Middle Aged , Obesity/complications , Obesity/diet therapy , Obesity/physiopathology , Patient Education as Topic , Weight Loss
13.
Crit Rev Food Sci Nutr ; 52(7): 569-84, 2012.
Article in English | MEDLINE | ID: mdl-22530710

ABSTRACT

This review analyses the potential beneficial effects of procyanidins, the main class of flavonoids, in situations in which glucose homeostasis is disrupted. Because the disruption of glucose homeostasis can occur as a result of various causes, we critically review the effects of procyanidins based on the specific origin of each type of disruption. Where little or no insulin is present (Type I diabetic animals), summarized studies of procyanidin treatment suggest that procyanidins have a short-lived insulin-mimetic effect on the internal targets of the organism, an effect not reproduced in normoglycemic, normoinsulinemic healthy animals. Insulin resistance (usually linked to hyperinsulinemia) poses a very different situation. Preventive studies using fructose-fed models indicate that procyanidins may be useful in preventing the induction of damage and thus in limiting hyperglycemia. But the results of other studies using models such as high-fat diet treated rats or genetically obese animals are controversial. Although the effects on glucose parameters are hazy, it is known that procyanidins target key tissues involved in its homeostasis. Interestingly, all available data suggest that procyanidins are more effective when administered in one acute load than when mixed with food.


Subject(s)
Glucose Metabolism Disorders/drug therapy , Hypoglycemic Agents/therapeutic use , Proanthocyanidins/therapeutic use , Animals , Blood Glucose/analysis , Dietary Supplements , Disease Models, Animal , Glucose/metabolism , Glucose Metabolism Disorders/blood , Glucose Metabolism Disorders/diet therapy , Glucose Metabolism Disorders/metabolism , Homeostasis , Humans , Hypoglycemic Agents/administration & dosage , Insulin Resistance , Phytotherapy , Plant Extracts/chemistry , Plant Extracts/therapeutic use , Proanthocyanidins/administration & dosage
14.
Diabetologia ; 55(3): 535-9, 2012 Mar.
Article in English | MEDLINE | ID: mdl-22270225

ABSTRACT

Since the work of Eriksson and Lindgärde, published over two decades ago (Diabetologia 1991;34:891-898), we have known that type 2 diabetes can be prevented or delayed by supervised lifestyle interventions (physical exercise and diet modification) in persons at risk of the disease. Here we discuss a novel, time-efficient approach to physical exercise prescription, low-volume, high-intensity interval training (LVHIT), and its efficacy for inducing a range of health benefits in a variety of populations at risk of inactivity-related diseases. We look to the future and suggest that current guidelines for exercise may need to be revised to include different training techniques to deliver the optimum exercise prescription. Indeed, we predict that subsequent exercise guidelines will include LVHIT as part of a comprehensive 'fitness menu' that allows individuals to select the exercise regimen that best fulfils their medical needs, is suited to their lifestyle and daily time restraints, and meets their personal goals.


Subject(s)
Diabetes Mellitus, Type 2/prevention & control , Diet , Exercise , Health Promotion , Adolescent , Adult , Diabetes Mellitus, Type 2/diet therapy , Diabetes Mellitus, Type 2/therapy , Glucose Metabolism Disorders/diet therapy , Glucose Metabolism Disorders/prevention & control , Glucose Metabolism Disorders/therapy , Guidelines as Topic , Humans , Life Style , Motor Activity , Physical Education and Training/trends
15.
Metabolism ; 61(3): 358-65, 2012 Mar.
Article in English | MEDLINE | ID: mdl-21944267

ABSTRACT

The objective was to examine the effects of diet macronutrient composition on insulin sensitivity, fasting glucose, and ß-cell response to glucose. Participants were 42 normal glucose-tolerant (NGT; fasting glucose <100 mg/dL) and 27 impaired fasting glucose (IFG), healthy, overweight/obese (body mass index, 32.5 ± 4.2 kg/m(2)) men and women. For 8 weeks, participants were provided with eucaloric diets, either higher carbohydrate/lower fat (55% carbohydrate, 18% protein, 27% fat) or lower carbohydrate/higher fat (43:18:39). Insulin sensitivity and ß-cell response to glucose (basal, dynamic [PhiD], and static) were calculated by mathematical modeling using glucose, insulin, and C-peptide data obtained during a liquid meal tolerance test. After 8 weeks, NGT on the higher-carbohydrate/lower-fat diet had higher insulin sensitivity than NGT on the lower-carbohydrate/higher fat diet; this pattern was not observed among IFG. After 8 weeks, IFG on the higher-carbohydrate/lower-fat diet had lower fasting glucose and higher PhiD than IFG on the lower-carbohydrate/higher-fat diet; this pattern was not observed among NGT. Within IFG, fasting glucose at baseline and the change in fasting glucose over the intervention were inversely associated with baseline PhiD (-0.40, P < .05) and the change in PhiD (-0.42, P < .05), respectively. Eight weeks of a higher-carbohydrate/lower-fat diet resulted in higher insulin sensitivity in healthy, NGT, overweight/obese individuals, and lower fasting glucose and greater glucose-stimulated insulin secretion in individuals with IFG. If confirmed, these results may have an impact on dietary recommendations for overweight individuals with and without IFG.


Subject(s)
Blood Glucose/metabolism , Dietary Carbohydrates/pharmacology , Dietary Fats/pharmacology , Fasting/physiology , Glucose Metabolism Disorders/diet therapy , Insulin-Secreting Cells/physiology , Adult , Body Weight/physiology , Female , Glucose Metabolism Disorders/blood , Glucose Tolerance Test , Hormones/blood , Humans , Insulin Resistance/physiology , Insulin-Secreting Cells/drug effects , Linear Models , Male , Middle Aged , Obesity/diet therapy , Obesity/physiopathology , Overweight/diet therapy , Overweight/physiopathology , Young Adult
16.
Diabetologia ; 54(11): 2755-67, 2011 Nov.
Article in English | MEDLINE | ID: mdl-21870174

ABSTRACT

AIMS/HYPOTHESIS: Low-grade inflammation and endothelial dysfunction may play a role in the pathogenesis of type 2 diabetes and cardiovascular disease. We evaluated whether a diet high in fatty fish, bilberries and wholegrain products (Healthy Diet) improves biomarkers reflecting inflammation and endothelial dysfunction in individuals with impaired glucose metabolism. METHODS: We recruited individuals with impaired glucose metabolism and features of the metabolic syndrome into a 12 week, parallel design, dietary intervention trial conducted at the Department of Clinical Nutrition, University of Eastern Finland (Kuopio, Finland). Randomisation was performed by matching according to sex and medians of age, BMI and fasting plasma glucose of the study population at screening. The primary endpoint in the present study was the change in plasma inflammatory markers and the measurements were performed blinded to group assignment. High-sensitivity (hs) C-reactive protein (CRP) and E-selectin responses were also analysed separately in participants not using statins (n = 76). RESULTS: Altogether, 131 individuals were assigned to either the Healthy Diet (n = 44), a whole-grain-enriched diet (WGED) (n = 42) or a control (n = 45) diet, and 104 participants (mean ± SD: age 59 ± 7 years; BMI 31.1 ± 3.5 kg/m(2)) who had completed the study, were analysed (Healthy Diet n = 36, WGED n = 34 and control diet n = 34). Plasma E-selectin decreased only in the Healthy Diet group. This occurred in all group participants (p < 0.05) and also after excluding participants using statins (p < 0.05). Plasma hsCRP levels decreased in the Healthy Diet (median -17%, p < 0.05) and WGED (median -27%, p < 0.01) groups in participants not using statins. Controlling for confounding factors, including BMI or insulin sensitivity, did not alter the results. A greater increase in plasma concentration of very-long-chain n-3 fatty acids and in the intake of fibre during the study was associated with a greater decrease in plasma E-selectin (p < 0.05). The intake of test breads consumed during the Healthy Diet and WGED interventions was inversely associated with the change in hsCRP levels (p < 0.001). CONCLUSIONS/INTERPRETATION: Our results suggest that the combined effect of fatty fish, bilberries and wholegrain products may improve endothelial dysfunction and inflammation in overweight and obese individuals at high risk of developing diabetes.


Subject(s)
Edible Grain , Endothelium, Vascular/physiopathology , Fatty Acids, Omega-3/therapeutic use , Glucose Metabolism Disorders/diet therapy , Glucose Metabolism Disorders/physiopathology , Seafood , Vaccinium myrtillus , Aged , Animals , Biomarkers/blood , Body Mass Index , C-Reactive Protein/analysis , Dietary Fiber/administration & dosage , Dietary Fiber/analysis , E-Selectin/blood , Edible Grain/chemistry , Endothelium, Vascular/immunology , Fatty Acids, Omega-3/analysis , Female , Finland , Fishes , Fruit , Glucose Metabolism Disorders/blood , Glucose Metabolism Disorders/immunology , Humans , Male , Metabolic Syndrome/blood , Metabolic Syndrome/diet therapy , Metabolic Syndrome/immunology , Metabolic Syndrome/physiopathology , Middle Aged , Seafood/analysis
17.
Zhonghua Yu Fang Yi Xue Za Zhi ; 45(5): 426-9, 2011 May.
Article in Chinese | MEDLINE | ID: mdl-21756786

ABSTRACT

OBJECTIVE: To explore the effect of different nutrition therapies on abnormal glucose metabolism during pregnancy and pregnancy outcomes. METHODS: The 83 cases of pregnant women with abnormal glucose metabolism who came to nutrition clinic were randomly divided into two groups before 30 weeks pregnancy: 42 cases in traditional food exchange serving group (FES) and 41 cases in food exchange serving based on glycemic load group (FES + GL). Traditional food exchange serving and food exchange serving based on glycemic load were used as the different nutrition therapies for two groups respectively until the time of delivery. The influence of two nutrition therapies on the blood glucose and pregnancy outcomes were observed. RESULTS: The daily food glucose load (GL) after nutrition therapy in the FES + GL group (145.9 ± 26.3) were significantly decreased than that of the FES group (179.9 ± 28.9, t = 5.602, P < 0.01). Fasting plasma glucose (FPG) and 2 h postprandial glucose (2 h PG) ((4.63 ± 0.97) and (6.15 ± 1.07) mmol/L, respectively) after nutrition therapy in the FES + GL group were significantly lower than that in pre-nutrition therapy ((4.96 ± 0.81) and (9.13 ± 1.61) mmol/L, t = 2.237, 11.202, respectively, all P values < 0.05). The 2 h PG in the FES + GL group ((6.15 ± 1.07) mmol/L) after nutrition therapy was significantly lower than that of the FES group ((6.86 ± 1.26) mmol/L, t = 2.760, P < 0.05). 19.51% (8/41) of the total incidence of complications in the FES + GL group was lower than that (11/42, 26.19%) in the FES group, but the difference was not significant (χ² = 0.524, P > 0.05). CONCLUSION: FES based on GL was much easier to reduce blood glucose compared with FES. Two nutrition therapies can improve maternal and neonatal outcomes in pregnant women with abnormal glucose metabolism.


Subject(s)
Diabetes, Gestational/diet therapy , Glucose Metabolism Disorders/diet therapy , Nutritional Support/methods , Adult , Blood Glucose/metabolism , Diabetes, Gestational/metabolism , Female , Glucose Metabolism Disorders/metabolism , Humans , Pregnancy
18.
Pró-fono ; 21(4): 291-297, out.-dez. 2009. tab
Article in English, Portuguese | LILACS | ID: lil-536794

ABSTRACT

BACKGROUND: different etiologies are related to tinnitus including metabolic disorders (blood glucose and lipids). AIM: the aim of this study was compare tinnitus severity by self-report measures pre and post nutritional intervention, using the Tinnitus Handicap Inventory. METHOD: participants of this study were twenty one male and female subjects, with ages ranging from 40 to 82 years. Inclusion criteria involved the presence of tinnitus and metabolic disorder diagnosed by laboratory exams. All subjects were submitted to a nutritional intervention program. Audiological evaluation and the Tinnitus Handicap Inventory were applied pre and post intervention. RESULTS: when comparing the presence of tinnitus pre and post intervention, data analysis indicates statistical difference concerning tinnitus sensation - 71.5 percent of the individuals referred less impact of tinnitus in daily activities. CONCLUSION: an important difference was observed concerning tinnitus influence in subject's life by self-report measures. A direct relation between tinnitus and metabolic disorders in cases related with this symptom was verified.


TEMA: diferentes etiologias estão relacionadas com a presença de zumbido, incluindo doenças metabólicas (glicêmicas e lipídicas). OBJETIVO: comparar o grau de severidade do zumbido por meio de medidas de auto-análise em sujeitos com alterações metabólicas pré e pós-intervenção nutricional, utilizando o Questionário de Gravidade do Zumbido. MÉTODO: vinte e um sujeitos, homens e mulheres, com idade entre 40 e 82 anos, participaram deste estudo. Critérios de inclusão abrangeram a presença de zumbido e de alteração metabólica diagnosticada por meio de exames laboratoriais. Todos os sujeitos foram submetidos a um programa de intervenção nutricional. A avaliação audiológia e o questionário de gravidade de zumbido foram aplicados pré e pós-intervenção. RESULTADOS: comparando os resultados pré e pós-intervenção os dados mostram uma diferença estatisticamente significante com relação à sensação do zumbido em 71,5 por cento dos sujeitos, os quais referiram menor impacto do zumbido nas atividades diárias. CONCLUSÃO: uma importante diferença foi observada com relação à influência do zumbido na vida do sujeito quando utilizadas as medidas de auto-análise. Verificou-se uma relação direta entre zumbido e alterações metabólicas em casos relacionados a estes sintomas.


Subject(s)
Adult , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Glucose Metabolism Disorders/complications , Lipid Metabolism Disorders/complications , Tinnitus/etiology , Glucose Metabolism Disorders/diet therapy , Glucose Metabolism Disorders/metabolism , Lipid Metabolism Disorders/diet therapy , Lipid Metabolism Disorders/metabolism , Time Factors
19.
Pro Fono ; 21(4): 291-7, 2009.
Article in English | MEDLINE | ID: mdl-20098946

ABSTRACT

BACKGROUND: Different etiologies are related to tinnitus including metabolic disorders (blood glucose and lipids). AIM: The aim of this study was compare tinnitus severity by self-report measures pre and post nutritional intervention, using the Tinnitus Handicap Inventory. METHOD: Participants of this study were twenty one male and female subjects, with ages ranging from 40 to 82 years. Inclusion criteria involved the presence of tinnitus and metabolic disorder diagnosed by laboratory exams. All subjects were submitted to a nutritional intervention program. Audiological evaluation and the Tinnitus Handicap Inventory were applied pre and post intervention. RESULTS: When comparing the presence of tinnitus pre and post intervention, data analysis indicates statistical difference concerning tinnitus sensation--71.5% of the individuals referred less impact of tinnitus in daily activities. CONCLUSION: An important difference was observed concerning tinnitus influence in subject's life by self-report measures. A direct relation between tinnitus and metabolic disorders in cases related with this symptom was verified.


Subject(s)
Glucose Metabolism Disorders/complications , Lipid Metabolism Disorders/complications , Tinnitus/etiology , Adult , Aged , Aged, 80 and over , Female , Glucose Metabolism Disorders/diet therapy , Glucose Metabolism Disorders/metabolism , Humans , Lipid Metabolism Disorders/diet therapy , Lipid Metabolism Disorders/metabolism , Male , Middle Aged , Time Factors
20.
PLoS One ; 3(7): e2630, 2008 Jul 09.
Article in English | MEDLINE | ID: mdl-18612464

ABSTRACT

BACKGROUND: The effect of weight loss on different plasma lipid subclasses at the molecular level is unknown. The aim of this study was to examine whether a diet-induced weight reduction result in changes in the extended plasma lipid profiles (lipidome) in subjects with features of metabolic syndrome in a 33-week intervention. METHODOLOGY/PRINCIPAL FINDINGS: Plasma samples of 9 subjects in the weight reduction group and 10 subjects in the control group were analyzed using mass spectrometry based lipidomic and fatty acid analyses. Body weight decreased in the weight reduction group by 7.8+/-2.9% (p<0.01). Most of the serum triacylglycerols and phosphatidylcholines were reduced. The decrease in triacylglycerols affected predominantly the saturated short chain fatty acids. This decrease of saturated short chain fatty acid containing triacylglycerols correlated with the increase of insulin sensitivity. However, levels of several longer chain fatty acids, including arachidonic and docosahexanoic acid, were not affected by weight loss. Levels of other lipids known to be associated with obesity such as sphingolipids and lysophosphatidylcholines were not altered by weight reduction. CONCLUSIONS/SIGNIFICANCE: Diet-induced weight loss caused significant changes in global lipid profiles in subjects with abnormal glucose metabolism. The observed changes may affect insulin sensitivity and glucose metabolism in these subjects. TRIAL REGISTRATION: ClinicalTrials.gov NCT00621205.


Subject(s)
Diet, Reducing , Fatty Acids/blood , Glucose Metabolism Disorders/diet therapy , Triglycerides/blood , Weight Loss , Adult , Aged , Blood Glucose/metabolism , Fatty Acids/analysis , Female , Glucose Metabolism Disorders/blood , Humans , Male , Metabolic Syndrome/metabolism , Middle Aged , Triglycerides/chemistry
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