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Nutrition Research Reviews

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https://www.readbyqxmd.com/read/27866493/dietary-dha-and-health-cognitive-function-ageing
#1
Carlos Cardoso, Cláudia Afonso, Narcisa M Bandarra
DHA is a key nutritional n-3 PUFA and needs to be supplied by the human diet. DHA is found in significant amounts in the retinal and neuronal cell membranes due to its high fluidity. Indeed, DHA is selectively concentrated in the synaptic and retinal membranes. DHA is deemed to display anti-inflammatory properties and to reduce the risk of CVD. Consumption of larger amounts of DHA appears to reduce the risk of depression, bipolar disorder, schizophrenia and mood disorders. Conversely, it has been shown that loss of DHA from the nerve cell membrane leads to dysfunction of the central nervous system in the form of anxiety, irritability, susceptibility to stress, dyslexia, impaired memory and cognitive functions, and extended reaction times...
November 21, 2016: Nutrition Research Reviews
https://www.readbyqxmd.com/read/27841104/effects-of-flavonoids-on-intestinal-inflammation-barrier-integrity-and-changes-in-gut-microbiota-during-diet-induced-obesity
#2
Katherine Gil-Cardoso, Iris Ginés, Montserrat Pinent, Anna Ardévol, Mayte Blay, Ximena Terra
Diet-induced obesity is associated with low-grade inflammation, which, in most cases, leads to the development of metabolic disorders, primarily insulin resistance and type 2 diabetes. Although prior studies have implicated the adipose tissue as being primarily responsible for obesity-associated inflammation, the latest discoveries have correlated impairments in intestinal immune homeostasis and the mucosal barrier with increased activation of the inflammatory pathways and the development of insulin resistance...
November 14, 2016: Nutrition Research Reviews
https://www.readbyqxmd.com/read/27821191/nutritional-management-of-hyperapob
#3
Valérie Lamantia, Allan Sniderman, May Faraj
Plasma apoB is a more accurate marker of the risk of CVD and type 2 diabetes (T2D) than LDL-cholesterol; however, nutritional reviews targeting apoB are scarce. Here we reviewed eighty-seven nutritional studies and present conclusions in order of strength of evidence. Plasma apoB was reduced in all studies that induced weight loss of 6-12 % using hypoenergetic diets (seven studies; 5440-7110 kJ/d; 1300-1700 kcal/d; 34-50 % carbohydrates; 27-39 % fat; 18-24 % protein). When macronutrients were compared in isoenergetic diets (eleven studies including eight randomised controlled trials (RCT); n 1189), the diets that reduced plasma apoB were composed of 26-51 % carbohydrates, 26-46 % fat, 11-32 % protein, 10-27 % MUFA, 5-14 % PUFA and 7-13 % SFA...
November 8, 2016: Nutrition Research Reviews
https://www.readbyqxmd.com/read/27666526/dairy-food-products-good-or-bad-for-cardiometabolic-disease
#4
Julie A Lovegrove, D Ian Givens
Prevalence of type 2 diabetes mellitus (T2DM) is rapidly increasingly and is a key risk for CVD development, now recognised as the leading cause of death globally. Dietary strategies to reduce CVD development include reduction of saturated fat intake. Milk and dairy products are the largest contributors to dietary saturated fats in the UK and reduced consumption is often recommended as a strategy for risk reduction. However, overall evidence from prospective cohort studies does not confirm a detrimental association between dairy product consumption and CVD risk...
September 26, 2016: Nutrition Research Reviews
https://www.readbyqxmd.com/read/27514726/association-between-obesity-and-asthma-epidemiology-pathophysiology-and-clinical-profile
#5
Magdalena Muc, Anabela Mota-Pinto, Cristina Padez
Obesity is a risk factor for asthma, and obese asthmatics have lower disease control and increased symptom severity. Several putative links have been proposed, including genetics, mechanical restriction of the chest and the intake of corticosteroids. The most consistent evidence, however, comes from studies of cytokines produced by the adipose tissue called adipokines. Adipokine imbalance is associated with both proinflammatory status and asthma. Although reverse causation has been proposed, it is now acknowledged that obesity precedes asthma symptoms...
August 12, 2016: Nutrition Research Reviews
https://www.readbyqxmd.com/read/27364352/when-to-eat-the-influence-of-circadian-rhythms-on-metabolic-health-are-animal-studies-providing-the-evidence
#6
Sofía Moran-Ramos, Adrian Baez-Ruiz, Ruud M Buijs, Carolina Escobar
As obesity and metabolic diseases rise, there is need to investigate physiological and behavioural aspects associated with their development. Circadian rhythms have a profound influence on metabolic processes, as they prepare the body to optimise energy use and storage. Moreover, food-related signals confer temporal order to organs involved in metabolic regulation. Therefore food intake should be synchronised with the suprachiasmatic nucleus (SCN) to elaborate efficient responses to environmental challenges...
July 1, 2016: Nutrition Research Reviews
https://www.readbyqxmd.com/read/27364160/modulating-adult-neurogenesis-through-dietary-interventions
#7
Christine Heberden
Three areas in the brain continuously generate new neurons throughout life: the subventricular zone lining the lateral ventricles, the dentate gyrus in the hippocampus and the median eminence in the hypothalamus. These areas harbour neural stem cells, which contribute to neural repair by generating daughter cells that then become functional neurons or glia. Impaired neurogenesis leads to detrimental consequences, such as depression, decline of cognitive abilities and obesity. Adult neurogenesis is a versatile process that can be modulated either positively or negatively by many effectors, external or endogenous...
July 1, 2016: Nutrition Research Reviews
https://www.readbyqxmd.com/read/27350652/ihd-from-copper-deficiency-a-unified-theory
#8
Leslie M Klevay
The theory, in brief outline here, implicating deficiency of Cu in the aetiology and pathophysiology of IHD explains more attributes of the disease than any other theory. This theory satisfies several of Hill's criteria of a half-century ago for deducing association between an environmental feature and presence of an illness. Most important is the temporal association between the rise of IHD and the decrease in dietary Cu since the 1930s along with a parallel increase in the supplementation of pregnant women with Fe, a Cu antagonist...
June 28, 2016: Nutrition Research Reviews
https://www.readbyqxmd.com/read/27350560/nutrition-and-the-homeless-the-underestimated-challenge
#9
J V Seale, R Fallaize, J A Lovegrove
Homelessness is present in most societies and represents a situation in which the basic needs for survival including food are often limited. It is logical to surmise that the homeless person's diet is likely to be nutritionally deficient and yet there is a relative paucity in research regarding this issue with studies varying in both their methodology and homeless population. Despite these differences, diets of the homeless are frequently characterised as high in saturated fat and deficient in fibre and certain micronutrients, all of which can have negative implications for the homeless individual's health and/or mental state...
June 28, 2016: Nutrition Research Reviews
https://www.readbyqxmd.com/read/27356771/protein-structural-changes-during-processing-of-vegetable-feed-ingredients-used-in-swine-diets-implications-for-nutritional-value
#10
S Salazar-Villanea, W H Hendriks, E M A M Bruininx, H Gruppen, A F B van der Poel
Protein structure influences the accessibility of enzymes for digestion. The proportion of intramolecular β-sheets in the secondary structure of native proteins has been related to a decrease in protein digestibility. Changes to proteins that can be considered positive (for example, denaturation and random coil formation) or negative (for example, aggregation and Maillard reactions) for protein digestibility can occur simultaneously during processing. The final result of these changes on digestibility seems to be a counterbalance of the occurrence of each phenomenon...
June 2016: Nutrition Research Reviews
https://www.readbyqxmd.com/read/27176552/critical-review-evaluating-the-pig-as-a-model-for-human-nutritional-physiology
#11
Eugeni Roura, Sietse-Jan Koopmans, Jean-Paul Lallès, Isabelle Le Huerou-Luron, Nadia de Jager, Teun Schuurman, David Val-Laillet
The present review examines the pig as a model for physiological studies in human subjects related to nutrient sensing, appetite regulation, gut barrier function, intestinal microbiota and nutritional neuroscience. The nutrient-sensing mechanisms regarding acids (sour), carbohydrates (sweet), glutamic acid (umami) and fatty acids are conserved between humans and pigs. In contrast, pigs show limited perception of high-intensity sweeteners and NaCl and sense a wider array of amino acids than humans. Differences on bitter taste may reflect the adaptation to ecosystems...
June 2016: Nutrition Research Reviews
https://www.readbyqxmd.com/read/27172872/how-plausible-is-the-use-of-dietary-n-3-pufa-in-the-adjuvant-therapy-of-cancer
#12
Simona Serini, Renata Ottes Vasconcelos, Elena Fasano, Gabriella Calviello
Considerable debate exists regarding the potential antineoplastic effect of dietary long-chain n-3 PUFA contained in fatty fishes. Since the majority of published data has proven that their intake does not induce toxic or carcinogenic effects in humans, their possible preventive use against cancer has been suggested. On the other hand, it is unlikely that they could be effective in cancer patients as a single therapy. Nevertheless, a considerable effort has been put forth in recent years to evaluate the hypothesis that n-3 PUFA might improve the antineoplastic efficiency of currently used anticancer agents...
June 2016: Nutrition Research Reviews
https://www.readbyqxmd.com/read/27109024/bioavailability-of-milk-protein-derived-bioactive-peptides-a-glycaemic-management-perspective
#13
Katy Horner, Elaine Drummond, Lorraine Brennan
Milk protein-derived peptides have been reported to have potential benefits for reducing the risk of type 2 diabetes. However, what the active components are and whether intact peptides exert this bioactivity has received little investigation in human subjects. Furthermore, potentially useful bioactive peptides can be limited by low bioavailability. Various peptides have been identified in the gastrointestinal tract and bloodstream after milk-protein ingestion, providing valuable insights into their potential bioavailability...
June 2016: Nutrition Research Reviews
https://www.readbyqxmd.com/read/27087106/intestinal-barrier-dysfunction-implications-for-chronic-inflammatory-conditions-of-the-bowel
#14
Warren M Miner-Williams, Paul J Moughan
The intestinal epithelium of adult humans acts as a differentially permeable barrier that separates the potentially harmful contents of the lumen from the underlying tissues. Any dysfunction of this boundary layer that disturbs the homeostatic equilibrium between the internal and external environments may initiate and sustain a biochemical cascade that results in inflammation of the intestine. Key to such dysfunction are genetic, microbial and other environmental factors that, singularly or in combination, result in chronic inflammation that is symptomatic of inflammatory bowel disease (IBD)...
June 2016: Nutrition Research Reviews
https://www.readbyqxmd.com/read/27046048/buckwheat-phenolic-metabolites-in-health-and-disease
#15
Marko Kreft
Buckwheat (Fagopyrum esculentum Moench, F. tataricum Gaertner) groats and flour have been established globally as nutritional foods because of their high levels of proteins, polyphenols and minerals. In some regions, buckwheat herb is used as a functional food. In the present study, reports of in vitro studies, preclinical and clinical trials dealing with the effect of buckwheat and its metabolites were reviewed. There are numerous reports of potential health benefits of consuming buckwheat, which may be in the form of food, dietary supplements, home remedies or possibly pharmaceutical drugs; however, adverse effects, including those resulting from contamination, must be considered...
June 2016: Nutrition Research Reviews
https://www.readbyqxmd.com/read/27045966/the-role-of-emotion-regulation-in-childhood-obesity-implications-for-prevention-and-treatment
#16
E Aparicio, J Canals, V Arija, S De Henauw, N Michels
Stress and negative emotions pose a major threat to public health, by increasing the risk of obesity. Since the management process for emotions (emotion regulation; ER) is developed in childhood, we present a novel conceptual framework model for the role of ER in the prevention and treatment of childhood obesity. A narrative review of the literature by electronic database search (MEDLINE, Web of Knowledge and Scopus) was conducted of observational and interventional/experimental literature on ER and obesity and the underlying concepts...
June 2016: Nutrition Research Reviews
https://www.readbyqxmd.com/read/26809946/n-3-fatty-acids-and-asthma
#17
Aishwarya Kumar, Sarabjit S Mastana, Martin R Lindley
Asthma is one of the most common and prevalent problems worldwide affecting over 300 million individuals. There is some evidence from observational and intervention studies to suggest a beneficial effect of n-3 PUFA in inflammatory diseases, specifically asthma. Marine-based n-3 PUFA have therefore been proposed as a possible complementary/alternative therapy for asthma. The proposed anti-inflammatory effects of n-3 fatty acids may be linked to a change in cell membrane composition. This altered membrane composition following n-3 fatty acid supplementation (primarily EPA and DHA) can modify lipid mediator generation via the production of eicosanoids with a reduced inflammatory potential/impact...
June 2016: Nutrition Research Reviews
https://www.readbyqxmd.com/read/26650244/the-role-of-nutrition-on-cognition-and-brain-health-in-ageing-a-targeted-approach
#18
Jim M Monti, Christopher J Moulton, Neal J Cohen
Animal experiments and cross-sectional or prospective longitudinal research in human subjects suggest a role for nutrition in cognitive ageing. However, data from randomised controlled trials (RCT) that seek causal evidence for the impact of nutrients on cognitive ageing in humans often produce null results. Given that RCT test hypotheses in a rigorous fashion, one conclusion could be that the positive effects of nutrition on the aged brain observed in other study designs are spurious. On the other hand, it may be that the design of many clinical trials conducted thus far has been less than optimal...
December 2015: Nutrition Research Reviews
https://www.readbyqxmd.com/read/26650243/dietary-and-lifestyle-habits-and-the-associated-health-risks-in-shift-workers
#19
Fiona M Nea, John Kearney, M Barbara E Livingstone, L Kirsty Pourshahidi, Clare A Corish
Traditionally only a small proportion of the workforce was engaged in shift work. Changing economic pressures have resulted in increased engagement in shift work, with approximately 17 % of the workforce in Europe engaged in this work pattern. The present narrative review aimed to summarise the data on the effects of shift work on the diet, lifestyle and health of employees, while addressing the barriers to, and opportunities for, improving health among shift workers. Shift work can result in low-quality diet and irregular eating patterns...
December 2015: Nutrition Research Reviews
https://www.readbyqxmd.com/read/26650242/obesity-and-diabetes-the-link-between-adipose-tissue-dysfunction-and-glucose-homeostasis
#20
Monise Viana Abranches, Fernanda Cristina Esteves de Oliveira, Lisiane Lopes da Conceição, Maria do Carmo Gouveia Peluzio
Obesity and type 2 diabetes mellitus (T2DM) epidemics, which have already spread, imply the possibility of both conditions being closely related. Thus, the goal of the present review was to draw a parallel between obesity, adipose tissue (AT) changes, and T2DM development. To this end, a search was conducted in PubMed, MEDLINE and SciELO databases, using the following key words and their combinations: obesity; diabetes; insulin resistance; diet; weight loss; adipocin; inflammation markers; and interleukins...
December 2015: Nutrition Research Reviews
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