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Nutritional geometry

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https://www.readbyqxmd.com/read/29579973/on-printability-quality-and-nutritional-properties-of-3d-printed-cereal-based-snacks-enriched-with-edible-insects
#1
C Severini, D Azzollini, M Albenzio, A Derossi
3D printing technology was employed to obtain snacks with a designed cylindrical geometry from wheat flour dough enriched by ground larvae of Yellow mealworms (Tenebrio molitor) as novel source of proteins. The main microstructural features, overall quality, and nutritional attributes were studied as a function of formulation, time and temperature of baking. The addition of ground insects up to 20 g/100 g (d.b.) resulted in softer dough. This caused an overflow in dough deposition producing the increase in diameter, height and weight of snacks...
April 2018: Food Research International
https://www.readbyqxmd.com/read/29570407/the-geometry-of-nutrient-space-based-life-history-trade-offs-sex-specific-effects-of-macronutrient-intake-on-the-trade-off-between-encapsulation-ability-and-reproductive-effort-in-decorated-crickets
#2
James Rapkin, Kim Jensen, C Ruth Archer, Clarissa M House, Scott K Sakaluk, Enrique Del Castillo, John Hunt
Life-history theory assumes that traits compete for limited resources, resulting in trade-offs. The most commonly manipulated resource in empirical studies is the quantity or quality of diet. Recent studies using the geometric framework for nutrition, however, suggest that trade-offs are often regulated by the intake of specific nutrients, but a formal approach to identify and quantify the strength of such trade-offs is lacking. We posit that trade-offs occur whenever life-history traits are maximized in different regions of nutrient space, as evidenced by nonoverlapping 95% confidence regions of the global maximum for each trait and large angles (θ) between linear nutritional vectors and Euclidean distances (d) between global maxima...
April 2018: American Naturalist
https://www.readbyqxmd.com/read/29531699/nutritional-geometry-and-fitness-consequences-in-drosophila-suzukii-the-spotted-wing-drosophila
#3
Yvonne Young, Natasha Buckiewicz, Tristan A F Long
Since its arrival to North America less than a decade ago, the invasive Spotted-Wing Drosophila ( Drosophila suzukii ) has inflicted substantial economic losses on soft fruit agriculture due to its ability to oviposit into ripening fruits. More effective management approaches for this species are needed, but little is known about the factors that influence behavioral choices made by D. suzukii when selecting hosts, or the consequences that their offspring experience when developing in different environments...
March 2018: Ecology and Evolution
https://www.readbyqxmd.com/read/29197192/laparoscopic-gastric-plication-for-the-treatment-of-morbid-obesity-by-using-real-time-imaging-of-the-stomach-pouch
#4
Cristian Borz, Tivadar Jr Bara, Tivadar Bara, Andras Suciu, Marton Denes, Bogdan Borz, Dorin Marian, Simona Muresan, Anca Bacarea, Mircea Muresan, Gabriela Jimborean
BACKGROUND: Bariatric surgery is a continuously evolving field. Laparoscopic greater curvature plication is a new investigational procedure used to treat patients with morbid obesity. The demand for this operation from the obese patients is also rising. The problem is that during gastric plication the exact dimensions and volume of the pouch are not known so frequently it is too large or too tight thus compromising the results. The aim of the study was to identify the parameters that can improve the outcomes after this procedure...
2017: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/29182421/feeding-strategy-shapes-gut-metagenomic-enrichment-and-functional-specialization-in-captive-lemurs
#5
E A McKenney, Thomas M O'Connell, Allen Rodrigo, Anne D Yoder
Many studies have demonstrated the effects of host diet on gut microbial membership, metagenomics, and fermentation individually; but few have attempted to interpret the relationship among these biological phenomena with respect to host features (e.g. gut morphology). We quantitatively compare the fecal microbial communities, metabolic pathways, and fermentation products associated with the nutritional intake of frugivorous (fruit-eating) and folivorous (leaf-eating) lemurs. Our results provide a uniquely multidimensional and comparative perspective on the adaptive dynamics between host and microbiome...
November 28, 2017: Gut Microbes
https://www.readbyqxmd.com/read/29122389/the-nutritional-geometry-of-liver-disease-including-non-alcoholic-fatty-liver-disease
#6
REVIEW
Stephen J Simpson, David Raubenheimer, Victoria C Cogger, Laurence Macia, Samantha M Solon-Biet, David G Le Couteur, Jacob George
Nutrition has a profound effect on chronic liver disease, especially non-alcoholic fatty liver disease (NAFLD). Most observational studies and clinical trials have focussed on the effects of total energy intake, or the intake of individual macronutrients and certain micronutrients, such as vitamin D, on liver disease. Although these studies have shown the importance of nutrition on hepatic outcomes, there is not yet any unifying framework for understanding the relationship between diet and liver disease. The Geometric Framework for Nutrition (GFN) is an innovative model for designing nutritional experiments or interpreting nutritional data that can determine the effects of nutrients and their interactions on animal behaviour and phenotypes...
February 2018: Journal of Hepatology
https://www.readbyqxmd.com/read/29021174/nutritional-geometry-of-paternal-effects-on-embryo-mortality
#7
Michal Polak, Leigh W Simmons, Joshua B Benoit, Kari Ruohonen, Stephen J Simpson, Samantha M Solon-Biet
Well-established causal links exist between maternal nutritional deficits and embryo health and viability. By contrast, environmental effects operating through the father that could influence embryo mortality have seldom been examined. Yet, ejaculates can require non-trivial resource allocation, and seminal plasma components are increasingly recognized to exert wide-ranging effects on females and offspring, so paternal dietary effects on the embryo should be expected. We test for effects of varying levels of protein (P), carbohydrate (C) and caloric load in adult male diet on embryo mortality in Drosophila melanogaster We demonstrate that macronutrient balance and caloric restriction exert significant effects, and that nutritional effects are more impactful when a prior mating has occurred...
October 11, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28987632/moderate-hyperhomocysteinemia-induced-by-short-term-dietary-methionine-overload-alters-bone-microarchitecture-and-collagen-features-during-growth
#8
Petar Milovanovic, Dragan Hrncic, Ksenija Radotic, Mira Stankovic, Dragosav Mutavdzic, Danijela Djonic, Aleksandra Rasic-Markovic, Dragan Djuric, Olivera Stanojlovic, Marija Djuric
AIMS: In general, hyperhomocysteinemia is increasingly appreciated as a risk factor for various diseases, including osteoporosis. However, its effects in non-adults remain largely unknown. Our aim was to determine whether dietary-caused increased homocysteine levels have deleterious effects on bone structure during growth. MAIN METHODS: We developed a model of moderate hyperhomocysteinemia caused by short-term methionine nutritional overload in growing rats. 30-days-old male Wistar albino rats were randomly assigned to either experimental group subject to a 30-days hypermethionine diet or control group...
December 15, 2017: Life Sciences
https://www.readbyqxmd.com/read/28952433/bio-inspired-biomaterials-and-their-drug-delivery-perspectives-a-review
#9
Angel M Villalba-Rodriguez, Roberto Parra-Saldivar, Ishtiaq Ahmed, K Karthik, Yashpal S Malik, Kuldeep Dhama, Hafiz M N Iqbal
BACKGROUND: Several disease conditions require controlled or sustained drug release leading to complete recovery. In recent years, there has been a considerable research interest in bio-inspired biomaterials due to their potential as an alternative to the traditional synthetic counterparts. METHODS: Herein, we extensively reviewed, analyzed and compiled salient information from the authentic bibliographic databases including PubMed, Scopus, Elsevier, Springer, Bentham Science and other scientific databases...
2017: Current Drug Metabolism
https://www.readbyqxmd.com/read/28831686/food-versus-pharmacy-assessment-of-nutritional-and-pharmacological-strategies-to-improve-bone-health-in-energy-deficient-exercising-women
#10
REVIEW
Emily A Southmayd, Adelaide C Hellmers, Mary Jane De Souza
PURPOSE OF REVIEW: The review aims to summarize our current knowledge surrounding treatment strategies aimed at recovery of bone mass in energy-deficient women suffering from the Female Athlete Triad. RECENT FINDINGS: The independent and interactive contributions of energy status versus estrogen status on bone density, geometry, and strength have recently been reported, highlighting the importance of addressing both energy and estrogen in treatment strategies for bone health...
October 2017: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/28826630/a-theoretical-exploration-of-dietary-collective-medication-in-social-insects
#11
Laure-Anne Poissonnier, Mathieu Lihoreau, Tamara Gomez-Moracho, Audrey Dussutour, Jerome Buhl
Animals often alter their food choices following a pathogen infection in order to increase immune function and combat the infection. Whether social animals that collect food for their brood or nestmates adjust their nutrient intake to the infection states of their social partners is virtually unexplored. Here we develop an individual-based model of nutritional geometry to examine the impact of collective nutrient balancing on pathogen spread in a social insect colony. The model simulates a hypothetical social insect colony infected by a horizontally transmitted parasite...
August 18, 2017: Journal of Insect Physiology
https://www.readbyqxmd.com/read/28694843/quantifying-pruning-impacts-on-olive-tree-architecture-and-annual-canopy-growth-by-using-uav-based-3d-modelling
#12
F M Jiménez-Brenes, F López-Granados, A I de Castro, J Torres-Sánchez, N Serrano, J M Peña
BACKGROUND: Tree pruning is a costly practice with important implications for crop harvest and nutrition, pest and disease control, soil protection and irrigation strategies. Investigations on tree pruning usually involve tedious on-ground measurements of the primary tree crown dimensions, which also might generate inconsistent results due to the irregular geometry of the trees. As an alternative to intensive field-work, this study shows a innovative procedure based on combining unmanned aerial vehicle (UAV) technology and advanced object-based image analysis (OBIA) methodology for multi-temporal three-dimensional (3D) monitoring of hundreds of olive trees that were pruned with three different strategies (traditional, adapted and mechanical pruning)...
2017: Plant Methods
https://www.readbyqxmd.com/read/28673915/collective-foraging-in-spatially-complex-nutritional-environments
#13
Mathieu Lihoreau, Michael A Charleston, Alistair M Senior, Fiona J Clissold, David Raubenheimer, Stephen J Simpson, Jerome Buhl
Nutrition impinges on virtually all aspects of an animal's life, including social interactions. Recent advances in nutritional ecology show how social animals often trade-off individual nutrition and group cohesion when foraging in simplified experimental environments. Here, we explore how the spatial structure of the nutritional landscape influences these complex collective foraging dynamics in ecologically realistic environments. We introduce an individual-based model integrating key concepts of nutritional geometry, collective animal behaviour and spatial ecology to study the nutritional behaviour of animal groups in large heterogeneous environments containing foods with different abundance, patchiness and nutritional composition...
August 19, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28542353/identification-of-cow-and-buffalo-milk-based-on-beta-carotene-and-vitamin-a-concentration-using-fluorescence-spectroscopy
#14
Rahat Ullah, Saranjam Khan, Hina Ali, Muhammad Bilal, Muhammad Saleem
The current study presents the application of fluorescence spectroscopy for the identification of cow and buffalo milk based on β-carotene and vitamin-A which is of prime importance from the nutritional point of view. All samples were collected from healthy animals of different breeds at the time of lactation in the vicinity of Islamabad, Pakistan. Cow and buffalo milk shows differences at fluorescence emission appeared at band position 382 nm, 440 nm, 505 nm and 525 nm both in classical geometry (right angle) setup as well as front face fluorescence setup...
2017: PloS One
https://www.readbyqxmd.com/read/28274839/dietary-protein-aging-and-nutritional-geometry
#15
REVIEW
Stephen J Simpson, David G Le Couteur, David Raubenheimer, Samantha M Solon-Biet, Gregory J Cooney, Victoria C Cogger, Luigi Fontana
Nearly a century of research has shown that nutritional interventions can delay aging and age- related diseases in many animal models and possibly humans. The most robust and widely studied intervention is caloric restriction, while protein restriction and restriction of various amino acids (methionine, tryptophan) have also been shown to delay aging. However, there is still debate over whether the major impact on aging is secondary to caloric intake, protein intake or specific amino acids. Nutritional geometry provides new perspectives on the relationship between nutrition and aging by focusing on calories, macronutrients and their interactions across a landscape of diets, and taking into account compensatory feeding in ad libitum-fed experiments...
October 2017: Ageing Research Reviews
https://www.readbyqxmd.com/read/28273475/integrative-physiology-at-the-crossroads-of-nutrition-microbiota-animal-physiology-and-human-health
#16
REVIEW
François Leulier, Lesley T MacNeil, Won-Jae Lee, John F Rawls, Patrice D Cani, Martin Schwarzer, Liping Zhao, Stephen J Simpson
Nutrition is paramount in shaping all aspects of animal biology. In addition, the influence of the intestinal microbiota on physiology is now widely recognized. Given that diet also shapes the intestinal microbiota, this raises the question of how the nutritional environment and microbial assemblages together influence animal physiology. This research field constitutes a new frontier in the field of organismal biology that needs to be addressed. Here we review recent studies using animal models and humans and propose an integrative framework within which to define the study of the diet-physiology-microbiota systems and ultimately link it to human health...
March 7, 2017: Cell Metabolism
https://www.readbyqxmd.com/read/28268376/micro-tube-mass-production-device-for-microbial-culture
#17
K Fujimoto, M Ogawa, K Higashi, N Miki
This paper describes mass production system of micro-tubes for microbial culture in an open environment. Microbes are used in many fields, such as food, medicine, environmental and energy. We proposed a microbe culture system using hydrogel micro-tubes, which can protect the target microbes inside from competitive microbes outside of the tubes while allow oxygen and nutrition to diffuse through. The hydrogel micro-tubes can be produced by a microfluidic device, which can precisely control the flow and therefore, the tube geometry...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226540/micro-tube-mass-production-device-for-microbial-culture
#18
K Fujimoto, M Ogawa, K Higashi, N Miki, K Fujimoto, M Ogawa, K Higashi, N Miki, K Higashi, K Fujimoto, M Ogawa, N Miki
This paper describes mass production system of micro-tubes for microbial culture in an open environment. Microbes are used in many fields, such as food, medicine, environmental and energy. We proposed a microbe culture system using hydrogel micro-tubes, which can protect the target microbes inside from competitive microbes outside of the tubes while allow oxygen and nutrition to diffuse through. The hydrogel micro-tubes can be produced by a microfluidic device, which can precisely control the flow and therefore, the tube geometry...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28117494/the-seasonal-feeding-ecology-of-the-javan-slow-loris-nycticebus-javanicus
#19
Francis Cabana, Ellen Dierenfeld, Wirdateti Wirdateti, Giuseppe Donati, K A I Nekaris
OBJECTIVES: To describe the strategy employed by exudativorous primates during seasonal shifts in food abundance using the Javan slow loris as a model. Males and females may cope differently as well as exploit fallback foods in different proportions. MATERIALS AND METHODS: Observing 15 free ranging Javan slow lorises over a year, we quantified their seasonal diet and nutrient intake using intake rates. For gum intake rates, we conducted a trial with 10 captive Javan slow lorises measuring the length of time it took for them to ingest 10 g of gum...
April 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28088923/an-assessment-of-the-influence-of-macronutrients-on-growth-performance-and-nutrient-utilisation-in-broiler-chickens-by-nutritional-geometry
#20
COMPARATIVE STUDY
Sonia Y Liu, Peter H Selle, David Raubenheimer, David J Cadogan, Stephen J Simpson, Aaron J Cowieson
The right-angled triangle mixture experiment was designed to include fourteen diets with different concentrations of starch, protein and lipid. Experimental diets were offered to male Ross 308 broiler chickens from 10 to 23 d after hatching, and response curves and surfaces were generated to illustrate the influence of macronutrients on growth performance and nutrient utilisations. Despite the primary function of macronutrients, especially protein, may not be providing energy, macronutrients were expressed as energy derived from starch, protein and fat for statistical purposes in the mixture design...
December 2016: British Journal of Nutrition
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