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Mediterranean Diet, Interoception and Mental Health: Is it time to look beyond the 'Gut-Brain Axis'? Physiol Behav 2022; 257:113964. [PMID: 36130628 DOI: 10.1016/j.physbeh.2022.113964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 09/13/2022] [Accepted: 09/15/2022] [Indexed: 11/20/2022]
Abstract
OBJECTIVE A Mediterranean style diet (i.e., high in fruit, vegetables, fish, pulses, and wholegrains) is said to benefit psychological health. Many low-level interoceptive processes, such as those involved in the 'gut-brain' axis, are suggested to play a mechanistic role in in this relationship. However, interoceptive sensations in other domains, and at higher hierarchical levels of abstraction, have hitherto been overlooked. One domain often studied in relation to psychological health is cardioception. Therefore, we examined whether the Mediterranean diet was associated with first-order perceptual and second-order metacognitive cardioception. METHODS Participants completed the Heartbeat Detection Task, the Heartbeat Counting Task, and the EPIC-Norfolk Food Frequency Questionnaire from which diet was quantified. RESULTS Adherence to a Mediterranean style diet was associated with higher cardioceptive accuracy (i.e., perceptual performance) across both tasks. In addition, those consuming a Mediterranean diet had a better ability to detect errors in first order perceptual performance, and a lower prediction error (the magnitude of the difference between accuracy and confidence). DISCUSSION These findings indicated that deepening our understanding of how interoceptive processes beyond the 'gut-brain' axis are shaped by diet could deepen our understanding of the link between diet and mental health and wellbeing.
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The impact of glycaemic load on cognitive performance: A meta-analysis and guiding principles for future research. Neurosci Biobehav Rev 2022; 141:104824. [PMID: 35963545 DOI: 10.1016/j.neubiorev.2022.104824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 08/08/2022] [Accepted: 08/09/2022] [Indexed: 11/23/2022]
Abstract
The effect of breakfast glycaemic load (GL) on cognition was systematically examined. Randomised and non-randomised controlled trials were identified using PubMed, Scopus, and Cochrane Library (up to May 2022). 15 studies involving adults (aged 20 - 80 years) were included. Studies had a low risk, or some concerns, of bias. A random-effects meta-analysis model revealed no effect of GL on cognition up to 119 min post-consumption. However, after 120 min, immediate episodic memory scores were better following a low-GL compared to a high-GL (SMD = 0.16, 95% confidence interval [CI] = -0.00 to 0.32, p = 0.05, I2 = 5%). Subgroup analyses indicated that the benefit was greater in younger adults (<35 years) and those with better GT. A qualitative synthesis of 16 studies involving children and adolescents (aged 5 - 17 years) suggested that a low-GL breakfast may also benefit episodic memory and attention after 120 min. Methodological practises were identified which could explain a failure to detect benefits in some studies. Consequently, guiding principles were developed to optimise future study design.
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Isomaltulose: From origin to application and its beneficial properties – A bibliometric approach. Food Res Int 2022; 155:111061. [DOI: 10.1016/j.foodres.2022.111061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 02/19/2022] [Accepted: 02/22/2022] [Indexed: 01/03/2023]
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Kim H, Lee S, Han SH, Suh HJ. Physicochemical properties and glucose tolerance of low‐calorie cookies containing palatinose. J FOOD PROCESS PRES 2021. [DOI: 10.1111/jfpp.15958] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hyo‐Won Kim
- Division of Biotechnology, Food Technology, Graduate School Korea University Seoul Republic of Korea
| | - Seog‐Won Lee
- Department of Hotel Tourism & Culinary Arts, Culinary Arts and Food Service Management Major Yuhan University Bucheon Republic of Korea
| | - Sung Hee Han
- Institute of Human Behavior & Genetic, College of Medicine Korea University Seoul Republic of Korea
| | - Hyung Joo Suh
- Department of Public Health Sciences, Graduate School Korea University Seoul Republic of Korea
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Glycaemic load and cognition: comments concerning Marchand et al.. Br J Nutr 2021; 125:101-102. [PMID: 32507118 DOI: 10.1017/s0007114520001919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Tsukamoto H, Ishibashi A, Marley CJ, Shinohara Y, Ando S, Bailey DM, Hashimoto T, Ogoh S. Plasma brain-derived neurotrophic factor and dynamic cerebral autoregulation in acute response to glycemic control following breakfast in young men. Am J Physiol Regul Integr Comp Physiol 2021; 320:R69-R79. [PMID: 33112655 DOI: 10.1152/ajpregu.00059.2020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 10/20/2020] [Accepted: 10/20/2020] [Indexed: 11/22/2022]
Abstract
We examined the acute impact of both low- and high-glycemic index (GI) breakfasts on plasma brain-derived neurotrophic factor (BDNF) and dynamic cerebral autoregulation (dCA) compared with breakfast omission. Ten healthy men (age 24 ± 1 yr) performed three trials in a randomized crossover order; omission and Low-GI (GI = 40) and High-GI (GI = 71) breakfast conditions. Middle cerebral artery velocity (transcranial Doppler ultrasonography) and arterial pressure (finger photoplethysmography) were continuously measured for 5 min before and 120 min following breakfast consumption to determine dCA using transfer function analysis. After these measurements of dCA, venous blood samples for the assessment of plasma BDNF were obtained. Moreover, blood glucose was measured before breakfast and every 30 min thereafter. The area under the curve of 2 h postprandial blood glucose in the High-GI trial was higher than the Low-GI trial (P < 0.01). The GI of the breakfast did not affect BDNF. In addition, both very-low (VLF) and low-frequency (LF) transfer function phase or gains were not changed during the omission trial. In contrast, LF gain (High-GI P < 0.05) and normalized gain (Low-GI P < 0.05) were decreased by both GI trials, while a decrease in VLF phase was observed in only the High-GI trial (P < 0.05). These findings indicate that breakfast consumption augmented dCA in the LF range but High-GI breakfast attenuated cerebral blood flow regulation against slow change (i.e., the VLF range) in arterial pressure. Thus we propose that breakfast and glycemic control may be an important strategy to optimize cerebrovascular health.
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Affiliation(s)
- Hayato Tsukamoto
- Neurovascular Research Laboratory, Faculty of Life Sciences and Education, University of South Wales, Pontypridd, United Kingdom
- Faculty of Sport and Health Science, Ritsumeikan University, Shiga, Japan
| | - Aya Ishibashi
- Japan Institute of Sports Science, Tokyo, Japan
- Department of Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Christopher J Marley
- Neurovascular Research Laboratory, Faculty of Life Sciences and Education, University of South Wales, Pontypridd, United Kingdom
| | - Yasushi Shinohara
- Faculty of Sport and Health Science, Ritsumeikan University, Shiga, Japan
| | - Soichi Ando
- Graduate School of Informatics and Engineering, The University of Electro-Communications, Tokyo, Japan
| | - Damian M Bailey
- Neurovascular Research Laboratory, Faculty of Life Sciences and Education, University of South Wales, Pontypridd, United Kingdom
| | - Takeshi Hashimoto
- Faculty of Sport and Health Science, Ritsumeikan University, Shiga, Japan
| | - Shigehiko Ogoh
- Neurovascular Research Laboratory, Faculty of Life Sciences and Education, University of South Wales, Pontypridd, United Kingdom
- Department of Biomedical Engineering, Toyo University, Saitama, Japan
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7
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Abstract
The effect on cognitive test scores of generating differences in postprandial glycaemia using test foods or beverages has been inconsistent. Methodological issues may account for some of the variable results requiring further investigation using strong study designs into the relationship between glycaemia and cognitive functioning. The objective of this study was to determine the effects of postprandial glycaemia on cognitive function by examining cognition after consumption of foods that differ only by the rate of digestion of available carbohydrate in a population of young adults. In a double-blind, randomised, crossover trial, sixty-five participants received trifle sweetened either with a higher-glycaemic index (GI) sugar (sucrose; GI 65) or a lower-GI sugar (isomaltulose; GI 34). Cognitive tests were completed prior to trifle consumption, and 60 and 120 min after. There was no between-trifle difference at 60 min in performance on free word recall (0·0 (95 % CI -0·6, 0·5)), short delay word recall (0·0 (95 % CI -0·5, 0·5)), long delay word recall (0·0 (95 % CI -0·6, 0·6)), letter-number sequence recall (0·3 (95 % CI - 0·2, 0·7)) and visuo-spatial recall (-0·2 (95 % CI -0·6, 0·2)) tests. At 120 min, no difference was detected in any of these tests. The participants performed 7·7 (95 % CI 0·5,14·9) s faster in Reitan's trail-making test B 60 min after the higher-GI trifle than the lower-GI trifle (P = 0·037). Our findings of a null effect on memory are generally consistent with other works in which blinding and robust control for confounding have been used.
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Naveed S, Lakka T, Haapala EA. An Overview on the Associations between Health Behaviors and Brain Health in Children and Adolescents with Special Reference to Diet Quality. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E953. [PMID: 32033054 PMCID: PMC7037721 DOI: 10.3390/ijerph17030953] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 01/29/2020] [Accepted: 01/30/2020] [Indexed: 01/14/2023]
Abstract
Unhealthy diet has been associated with overweight, obesity, increased cardiometabolic risk, and recently, to impaired cognition and academic performance. The aim of this review is to provide an overview of the associations between health behaviors and cognition and academic achievement in children and adolescents under 18 years of age with a special reference to diet quality. Dietary patterns with a low consumption of fish, fruits, and vegetables, and high in fast food, sausages, and soft drinks have been linked to poor cognition and academic achievement. The studies on the associations between the high intake of saturated fat and red meat and low intake of fiber and high-fiber grain products with cognition are limited. The available evidence and physiological mechanisms suggest that diet may have direct, indirect, and synergistic effects on brain and cognition with physical activity, sedentary behaviors, cardiometabolic health, and sleep, but the associations have been modest. Therefore, integrating a healthy diet, physically active lifestyle, and adequate sleep may provide optimal circumstances for brain development and learning. We conclude that most of the existing literature is contained in cross-sectional studies, which therefore highlights the need for longitudinal and intervention studies on the effects of diet, physical activity, sedentary behavior, and sleep on cognition and academic performance.
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Affiliation(s)
- Sehrish Naveed
- Physiology, Institute of Biomedicine, University of Eastern Finland, Kuopio Campus, 70211 Kuopio, Finland; (T.L.); (E.A.H.)
| | - Timo Lakka
- Physiology, Institute of Biomedicine, University of Eastern Finland, Kuopio Campus, 70211 Kuopio, Finland; (T.L.); (E.A.H.)
- Department of Clinical Physiology and Nuclear Medicine, Kuopio University Hospital and University of Eastern Finland, 70211 Kuopio, Finland
- Kuopio Research Institute of Exercise Medicine, 70100 Kuopio, Finland
| | - Eero A. Haapala
- Physiology, Institute of Biomedicine, University of Eastern Finland, Kuopio Campus, 70211 Kuopio, Finland; (T.L.); (E.A.H.)
- Faculty of Sport and Health Sciences, University of Jyväskylä, 40014 Jyväskylä, Finland
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Keesing C, Mills B, Rapsey C, Haszard J, Venn B. Cognitive Performance Following Ingestion of Glucose-Fructose Sweeteners That Impart Different Postprandial Glycaemic Responses: A Randomised Control Trial. Nutrients 2019; 11:nu11112647. [PMID: 31689943 PMCID: PMC6893461 DOI: 10.3390/nu11112647] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 10/24/2019] [Accepted: 10/31/2019] [Indexed: 11/29/2022] Open
Abstract
We aimed to investigate the isolated effect of glycaemia on cognitive test performance by using beverages sweetened with two different glucose–fructose disaccharides, sucrose and isomaltulose. In a randomised crossover design, 70 healthy adults received a low-glycaemic-index (GI) isomaltulose and sucralose beverage (GI 32) and a high-GI sucrose beverage (GI 65) on two occasions that were separated by two weeks. Following beverage ingestion, declarative memory and immediate word recall were examined at 30, 80 and 130 min. At 140 min, executive function was tested. To confirm that the glycaemic response of the test beverages matched published GI estimates, a subsample (n = 12) of the cognitive testing population (n = 70) underwent glycaemic response testing on different test days. A significantly lower value of mean (95% CI) blood glucose concentration incremental area under the curve (iAUC) was found for isomaltulose, in comparison to the blood glucose concentration iAUC value for sucrose, the difference corresponding to −44 mmol/L∙min (−70, −18), p = 0.003. The mean (95% CI) difference in numbers of correct answers or words recalled between beverages at 30, 80 and 130 min were 0.1 (−0.2, 0.5), −0.3 (−0.8, 0.2) and 0.0 (−0.5, 0.5) for declarative memory, and −0.5 (−1.4, 0.3), 0.4 (−0.4, 1.3) and −0.4 (−1.1, 0.4) for immediate free word recall. At 140 min, the mean difference in the trail-making test between beverages was −0.3 sec (−6.9, 6.3). None of these differences were statistically or clinically significant. In summary, cognitive performance was unaffected by different glycaemic responses to beverages during the postprandial period of 140 min.
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Affiliation(s)
- Celeste Keesing
- Department of Human Nutrition, University of Otago, PO Box 56, Dunedin 9054, New Zealand.
| | - Brianna Mills
- Department of Human Nutrition, University of Otago, PO Box 56, Dunedin 9054, New Zealand.
| | - Charlene Rapsey
- Department of Psychological Medicine, Otago Medical School, University of Otago, PO Box 56, Dunedin 9054, New Zealand.
| | - Jillian Haszard
- Department of Human Nutrition, University of Otago, PO Box 56, Dunedin 9054, New Zealand.
| | - Bernard Venn
- Department of Human Nutrition, University of Otago, PO Box 56, Dunedin 9054, New Zealand.
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Hwang D, Park HR, Lee SJ, Kim HW, Kim JH, Shin KS. Oral administration of palatinose vs sucrose improves hyperglycemia in normal C57BL/6J mice. Nutr Res 2018; 59:44-52. [PMID: 30442232 DOI: 10.1016/j.nutres.2018.06.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Revised: 06/04/2018] [Accepted: 06/28/2018] [Indexed: 11/29/2022]
Abstract
Palatinose is a sucrose analog with a slower digestion rate than that of sucrose. For this reason, palatinose shows better effects on hepatic lipogenesis and cholesterol homeostasis compared with sucrose. We hypothesized that supplementation with palatinose instead of sucrose improves postprandial hyperglycemia and hyperinsulinemia in mice. Herein, we compared the digestion rates in vitro and observed physiological changes in vivo between sucrose- and palatinose-containing diets given to mice. Palatinose was hydrolyzed only by enzymes of the small intestine and was digested more slowly compared with sucrose in vitro. In mice, a diet containing palatinose resulted in significantly lower body weight gain and food efficiency rate values than those given a diet with sucrose. In this study, changes in serum biochemistry; hepatic fatty acid synthesis; cholesterol homeostasis; glucogenic, proinflammatory cytokines; and oxidative stress-related genes and proteins in the palatinose- and sucrose-fed mice were measured. Compared with the mice fed the sucrose diet, the palatinose diet resulted in lower serum glucose, insulin, and total cholesterol levels, as well as lower expression of several lipogenesis-related genes and proteins. Histological analysis of hepatic cells of palatinose-fed mice showed normal morphology. In conclusion, palatinose intake results in lower hepatic lipogenesis and better cholesterol homeostasis than the effects from sucrose.
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Affiliation(s)
- Dahyun Hwang
- Department of Biomedical Laboratory Science, College of Life and Health Sciences, Hoseo University, Chungnam 31499, South Korea; The Research Institute for Basic Sciences, Hoseo University, Chungnam 31499, South Korea.
| | - Hye-Ryung Park
- Department of Food Science and Biotechnology, Kyonggi University, Gyeonggi 16227, South Korea.
| | - Sue Jung Lee
- Department of Food Science and Biotechnology, Kyonggi University, Gyeonggi 16227, South Korea.
| | - Han Wool Kim
- Department of Food Science and Biotechnology, Kyonggi University, Gyeonggi 16227, South Korea.
| | | | - Kwang-Soon Shin
- Department of Food Science and Biotechnology, Kyonggi University, Gyeonggi 16227, South Korea.
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Bernard BN, Louise LC, Louise D. The Effects of Carbohydrates, in Isolation and Combined with Caffeine, on Cognitive Performance and Mood-Current Evidence and Future Directions. Nutrients 2018; 10:E192. [PMID: 29425182 PMCID: PMC5852768 DOI: 10.3390/nu10020192] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 01/26/2018] [Accepted: 01/26/2018] [Indexed: 12/31/2022] Open
Abstract
This review examines the effects of carbohydrates, delivered individually and in combination with caffeine, on a range of cognitive domains and subjective mood. There is evidence for beneficial effects of glucose at a dose of 25 g on episodic memory, but exploration of dose effects has not been systematic and the effects on other cognitive domains is not known. Factors contributing to the differential sensitivity to glucose facilitation include age, task difficulty/demand, task domain, and glucoregulatory control. There is modest evidence to suggest modulating glycemic response may impact cognitive function. The evidence presented in this review identifies dose ranges of glucose and caffeine which improve cognition, but fails to find convincing consistent synergistic effects of combining caffeine and glucose. Whilst combining glucose and caffeine has been shown to facilitate cognitive performance and mood compared to placebo or glucose alone, the relative contribution of caffeine and glucose to the observed effects is difficult to ascertain, due to the paucity of studies that have appropriately compared the effects of these ingredients combined and in isolation. This review identifies a number of methodological challenges which need to be considered in the design of future hypothesis driven research in this area.
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Affiliation(s)
- Boyle Neil Bernard
- Leeds Nutrition and Behaviour Group, School of Psychology, University of Leeds, Leeds LS2 9JT, UK.
| | - Lawton Clare Louise
- Leeds Nutrition and Behaviour Group, School of Psychology, University of Leeds, Leeds LS2 9JT, UK.
| | - Dye Louise
- Leeds Nutrition and Behaviour Group, School of Psychology, University of Leeds, Leeds LS2 9JT, UK.
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Edefonti V, Bravi F, Ferraroni M. Breakfast and behavior in morning tasks: Facts or fads? J Affect Disord 2017; 224:16-26. [PMID: 28062077 DOI: 10.1016/j.jad.2016.12.028] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 11/29/2016] [Accepted: 12/17/2016] [Indexed: 10/20/2022]
Abstract
BACKGROUND Most of the studies investigating the effects of breakfast on cognitive performance have compared performance in subjects who have or have not consumed this meal. However, characteristics of breakfast itself may influence mental abilities. Moreover, as far as the positive effects of having breakfast is more evident, research may focus on the specific characteristics of an adequate breakfast. METHODS To update an existing systematic review, published at the beginning of 2014, on the role of nutrient composition and/or energy intake at breakfast on the accomplishment of school-related tasks and cognition, we carried out a systematic review of the literature through PUBMED database. RESULTS From the literature search, we identified 39 papers, of which 2 were eligible according to our inclusion criteria. Both the selected papers concerned randomized crossover studies on the acute effect of breakfast carried out in a school setting in the United Kingdom. Both studies compared 2 iso-energetic breakfasts with a similar macronutrient composition; however, the alternative breakfasts were meant to differ in terms of glycemic index or glycemic load. The effects of breakfast composition were investigated on memory, attention, and information processing in both studies. However, different tests and subdomains were considered. LIMITATIONS Studies on these issues are still inconsistent and quantitatively insufficient to draw firm conclusions. CONCLUSIONS While the hypothesis of a better mental performance with breakfast>20% daily energy intake still needs confirmation, there does appear to be extra evidence that a lower postprandial glycemic response is beneficial to mental performance.
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Affiliation(s)
- Valeria Edefonti
- Branch of Medical Statistics, Biometry, and Epidemiology "G. A. Maccacaro", Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy.
| | - Francesca Bravi
- Branch of Medical Statistics, Biometry, and Epidemiology "G. A. Maccacaro", Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
| | - Monica Ferraroni
- Branch of Medical Statistics, Biometry, and Epidemiology "G. A. Maccacaro", Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
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The impact of diet-based glycaemic response and glucose regulation on cognition: evidence across the lifespan. Proc Nutr Soc 2017; 76:466-477. [DOI: 10.1017/s0029665117000829] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The brain has a high metabolic rate and its metabolism is almost entirely restricted to oxidative utilisation of glucose. These factors emphasise the extreme dependence of neural tissue on a stable and adequate supply of glucose. Whereas initially it was thought that only glucose deprivation (i.e. under hypoglycaemic conditions) can affect brain function, it has become apparent that low-level fluctuations in central availability can affect neural and consequently, cognitive performance. In the present paper the impact of diet-based glycaemic response and glucose regulation on cognitive processes across the lifespan will be reviewed. The data suggest that although an acute rise in blood glucose levels has some short-term improvements of cognitive function, a more stable blood glucose profile, which avoids greater peaks and troughs in circulating glucose is associated with better cognitive function and a lower risk of cognitive impairments in the longer term. Therefore, a habitual diet that secures optimal glucose delivery to the brain in the fed and fasting states should be most advantageous for the maintenance of cognitive function. Although the evidence to date is promising, it is insufficient to allow firm and evidence-based nutritional recommendations. The rise in obesity, diabetes and metabolic syndrome in recent years highlights the need for targeted dietary and lifestyle strategies to promote healthy lifestyle and brain function across the lifespan and for future generations. Consequently, there is an urgent need for hypothesis-driven, randomised controlled trials that evaluate the role of different glycaemic manipulations on cognition.
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Sawale PD, Shendurse AM, Mohan MS, Patil G. Isomaltulose (Palatinose) – An emerging carbohydrate. FOOD BIOSCI 2017. [DOI: 10.1016/j.fbio.2017.04.003] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Low Glycemic Index Prototype Isomaltulose-Update of Clinical Trials. Nutrients 2017; 9:nu9040381. [PMID: 28406437 PMCID: PMC5409720 DOI: 10.3390/nu9040381] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Revised: 04/05/2017] [Accepted: 04/12/2017] [Indexed: 12/17/2022] Open
Abstract
Low glycemic index diets are supposed to achieve a more beneficial effect on blood glucose control in people with diabetes mellitus and may also provide metabolic benefits for the general population. A prototype of a low-glycemic index carbohydrate is the natural occurring disaccharide isomaltulose that can be commercially produced from sucrose (beet sugar) to industrial scale. It is currently used in various food and drink applications as well as special and clinical nutrition feeds and formula diet as a food ingredient and alternative sugar. Here we provide an overview on clinical trials with isomaltulose including an analysis of its effects on glycemia and fat oxidation as compared to high glycemic index sugars and carbohydrates. In addition, we discuss recent reports on beneficial effects in weight-loss maintenance and pregnancy.
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Xylobiose, an Alternative Sweetener, Ameliorates Diabetes-Related Metabolic Changes by Regulating Hepatic Lipogenesis and miR-122a/33a in db/db Mice. Nutrients 2016; 8:nu8120791. [PMID: 27929393 PMCID: PMC5188446 DOI: 10.3390/nu8120791] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2016] [Revised: 11/23/2016] [Accepted: 11/25/2016] [Indexed: 02/06/2023] Open
Abstract
Type 2 diabetes is a major public health concern worldwide. Xylobiose (XB) consists of two molecules of d-xylose and is a major disaccharide in xylooligosaccharides that are used as prebiotics. We hypothesized that XB could regulate diabetes-related metabolic and genetic changes via microRNA expression in db/db mice. For six weeks, C57BL/KsJ-db/db mice received 5% XB as part of the total sucrose content of their diet. XB supplementation improved glucose tolerance with reduced levels of OGTT AUC, fasting blood glucose, HbA1c, insulin, and HOMA-IR. Furthermore, XB supplementation decreased the levels of total triglycerides, total cholesterol, and LDL-C. The expression levels of miR-122a and miR-33a were higher and lower in the XB group, respectively. In the liver, expressions of the lipogenic genes, including, fatty acid synthase (FAS), peroxisome proliferator activated receptor γ (PPARγ), sterol regulatory element-binding protein-1C (SREBP-1C), sterol regulatory element-binding protein-2 (SREBP-2), acetyl-CoA carboxylase (ACC), HMG-CoA reductase (HMGCR), ATP-binding cassette transporter G5/G8 (ABCG5/8), cholesterol 7 alpha-hydroxylase (CYP7A1), and sterol 12-alpha-hydroxylase (CYP8B1), as well as oxidative stress markers, including superoxide dismutase 1 (SOD1), superoxide dismutase 2 (SOD2), glutathione peroxidase (GPX), and catalase, were also regulated by XB supplementation. XB supplementation inhibited the mRNA expressions levels of the pro-inflammatory cytokines, tumor necrosis factor (TNF)-α, interleukin (IL)-1β, interleukin (IL)-6, and monocyte chemoattractant protein (MCP)-1, as well as phosphorylation of c-Jun N-terminal kinase/stress activated protein kinase (JNK/SAPK), p38 mitogen-activated protein kinases (MAPK), and extracellular signal-regulated kinases 1/2 (ERK1/2). These data demonstrate that XB exhibits anti-diabetic, hypolipogenic, and anti-inflammatory effects via regulation of the miR-122a/33a axis in db/db mice.
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Haapala EA, Eloranta AM, Venäläinen T, Jalkanen H, Poikkeus AM, Ahonen T, Lindi V, Lakka TA. Diet quality and academic achievement: a prospective study among primary school children. Eur J Nutr 2016; 56:2299-2308. [DOI: 10.1007/s00394-016-1270-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Accepted: 07/11/2016] [Indexed: 12/19/2022]
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König D, Zdzieblik D, Holz A, Theis S, Gollhofer A. Substrate Utilization and Cycling Performance Following Palatinose™ Ingestion: A Randomized, Double-Blind, Controlled Trial. Nutrients 2016; 8:nu8070390. [PMID: 27347996 PMCID: PMC4963866 DOI: 10.3390/nu8070390] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2016] [Revised: 06/08/2016] [Accepted: 06/16/2016] [Indexed: 01/18/2023] Open
Abstract
(1) Objective: To compare the effects of isomaltulose (Palatinose™, PSE) vs. maltodextrin (MDX) ingestion on substrate utilization during endurance exercise and subsequent time trial performance; (2) Methods: 20 male athletes performed two experimental trials with ingestion of either 75 g PSE or MDX 45 min before the start of exercise. The exercise protocol consisted of 90 min cycling (60% VO2max) followed by a time trial; (3) Results: Time trial finishing time (−2.7%, 90% CI: ±3.0%, 89% likely beneficial; p = 0.147) and power output during the final 5 min (+4.6%, 90% CI: ±4.0%, 93% likely beneficial; p = 0.053) were improved with PSE compared with MDX. The blood glucose profile differed between trials (p = 0.013) with PSE resulting in lower glycemia during rest (95%–99% likelihood) and higher blood glucose concentrations during exercise (63%–86% likelihood). In comparison to MDX, fat oxidation was higher (88%–99% likelihood; p = 0.005) and carbohydrate oxidation was lower following PSE intake (85%–96% likelihood; p = 0.002). (4) Conclusion: PSE maintained a more stable blood glucose profile and higher fat oxidation during exercise which resulted in improved cycling performance compared with MDX. These results could be explained by the slower availability and the low-glycemic properties of Palatinose™ allowing a greater reliance on fat oxidation and sparing of glycogen during the initial endurance exercise.
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Affiliation(s)
- Daniel König
- Section for Nutrition and Sports, Department of Sports and Sports Science, University of Freiburg, Schwarzwaldstrasse 175, Freiburg 79117, Germany.
| | - Denise Zdzieblik
- Section for Nutrition and Sports, Department of Sports and Sports Science, University of Freiburg, Schwarzwaldstrasse 175, Freiburg 79117, Germany.
| | - Anja Holz
- BENEO-Institute, Wormserstrasse 11, Obrigheim 67283, Germany.
| | - Stephan Theis
- BENEO-Institute, Wormserstrasse 11, Obrigheim 67283, Germany.
| | - Albert Gollhofer
- Section for Nutrition and Sports, Department of Sports and Sports Science, University of Freiburg, Schwarzwaldstrasse 175, Freiburg 79117, Germany.
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