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https://www.readbyqxmd.com/read/29235014/increased-bile-acid-signals-after-duodenal-jejunal-bypass-improve-non-alcoholic-steatohepatitis-nash-in-a-rodent-model-of-diet-induced-nash
#1
Takahiro Tsuchiya, Takeshi Naitoh, Munenori Nagao, Naoki Tanaka, Kazuhiro Watanabe, Hirofumi Imoto, Tomohiro Miyachi, Fuyuhiko Motoi, Michiaki Unno
BACKGROUND: The increasing incidence of non-alcoholic steatohepatitis (NASH) has resulted in it becoming a common cause of liver-related mortality; however, no efficient treatment has been established. It has been reported that bariatric surgery improves metabolic comorbidities, such as diabetes mellitus and NASH. Although the mechanism is unclear, it is thought that the changes in bile acid (BA) signaling via its nuclear receptor, farnesoid X receptor (FXR), produce various metabolic effects...
December 12, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/29234478/fructose-ingestion-impairs-expression-of-genes-involved-in-skeletal-muscle-s-adaptive-response-to-aerobic-exercise
#2
Natalia Gomes Gonçalves, Stephanie Heffer Cavaletti, Carlos Augusto Pasqualucci, Milton Arruda Martins, Chin Jia Lin
Background: The inverse relationship between exercise capacity and its variation over time and both cardiovascular and all-cause mortality suggests the existence of an etiological nexus between cardiometabolic diseases and the molecular regulators of exercise capacity. Coordinated adaptive responses elicited by physical training enhance exercise performance and metabolic efficiency and possibly mediate the health benefits of physical exercise. In contrast, impaired expression of genes involved in mitochondrial biogenesis or protein turnover in skeletal muscle-key biological processes involved in adaptation to physical training-leads to insulin resistance and obesity...
2017: Genes & Nutrition
https://www.readbyqxmd.com/read/29234335/metabolite-profiling-of-wheat-seedlings-induced-by-chitosan-revelation-of-the-enhanced-carbon-and-nitrogen-metabolism
#3
Xiaoqian Zhang, Kecheng Li, Ronge Xing, Song Liu, Pengcheng Li
Chitosan plays an important role in regulating growth and eliciting defense in many plant species. However, the exact metabolic response of plants to chitosan is still not clear. The present study performed an integrative analysis of metabolite profiles in chitosan-treated wheat seedlings and further investigated the response of enzyme activities and transcript expression related to the primary carbon (C) and nitrogen (N) metabolism. Metabolite profiling revealed that chitosan could induce significant difference of organic acids, sugars and amino acids in leaves of wheat seedlings...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29234288/lipocalin-2-in-fructose-induced-fatty-liver-disease
#4
Jessica Lambertz, Thorsten Berger, Tak W Mak, Josef van Helden, Ralf Weiskirchen
The intake of excess dietary fructose most often leads to non-alcoholic fatty liver disease (NAFLD). Fructose is metabolized mainly in the liver and its chronic consumption results in lipogenic gene expression in this organ. However, precisely how fructose is involved in NAFLD progression is still not fully understood, limiting therapy. Lipocalin-2 (LCN2) is a small secreted transport protein that binds to fatty acids, phospholipids, steroids, retinol, and pheromones. LCN2 regulates lipid and energy metabolism in obesity and is upregulated in response to insulin...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29233011/immobilized-inulinase-a-new-horizon-of-paramount-importance-driving-the-production-of-sweetener-and-prebiotics
#5
Gerard Neeraj, Shobana Ravi, Ravindran Somdutt, ShriAishvarya Kaliyur Ravi, Vaidyanathan Vinoth Kumar
In recent times, inulinase has emerged as one the most prominent and industrially upcoming enzymes applied to meet the ever increasing demand of d-fructose and fructooligosaccharides (FOS) as sweetener and prebiotics in the food and pharmaceutical industry, respectively. This review deals with types of inulinase and the attempts made to modify it for better thermal stability and shelf life. The ease of immobilization of inulinase has led us to the path of experimenting with different methods of enzyme immobilization since 1979...
December 12, 2017: Critical Reviews in Biotechnology
https://www.readbyqxmd.com/read/29232314/postexercise-fructose-maltodextrin-ingestion-enhances-subsequent-endurance-capacity
#6
Ed Maunder, Tim Podlogar, Gareth A Wallis
PURPOSE: Restoring skeletal muscle and hepatic glycogen content during short-term (<6 h) recovery from prolonged exercise is pertinent for athletes seeking to maximize performance in repeated exercise bouts. Previous research suggests co-ingestion of fructose-glucose carbohydrate sources augments hepatic and has equivalent effects on skeletal muscle glycogen storage during short-term recovery from prolonged exercise compared to isocaloric glucose ingestion. The aim of the present investigation was to determine if this has a discernible effect on subsequent exercise capacity...
December 11, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29232127/measurement-of-fructose-asparagine-concentrations-in-human-and-animal-foods
#7
Jikang Wu, Anice Sabag-Daigle, Thomas O Metz, Brooke Deatherage Kaiser, Venkat Gopalan, Edward J Behrman, Vicki H Wysocki, Brian Ahmer
The food-borne bacterial pathogen, Salmonella enterica, can utilize fructose-asparagine (F-Asn) as the sole carbon and nitrogen source. F-Asn is the product of an Amadori rearrangement following the non-enzymatic condensation of glucose and asparagine. Heating converts F-Asn via complex Maillard reactions to a variety of molecules that contribute to the color, taste, and aroma of heated foods. Among these end derivatives is acrylamide, which is present in some foods, especially in fried potatoes. The F-Asn utilization pathway in Salmonella, specifically FraB, is a potential drug target because inhibition of this enzyme would lead to intoxication of Salmonella in the presence of F-Asn...
December 12, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29230823/decreasing-fructose-1-6-bisphosphate-aldolase-activity-reduces-plant-growth-and-tolerance-to-chilling-stress-in-tomato-seedlings
#8
Bingbing Cai, Qiang Li, Fengjiao Liu, Huangai Bi, Xizhen Ai
In northern China, low temperatures are the most common abiotic stresses for tomato plants cultivated in solar-greenhouse in winter. We recently found that the expression and enzyme activity of fructose 1,6-bisphosphate aldolases in tomato (FBAs), which are important enzymes in the Calvin-Benson cycle (CBC), were significantly altered in tomato seedlings subjected to heat/cold stresses. In order to study the role of FBA in photosynthesis and in regulating cold stress responses of tomato seedlings (Solanum lycopersicum), we transformed a tomato inbred line (FF) with RNA interference (RNAi) vector containing SlFBA7 reverse tandem repeat sequence...
December 12, 2017: Physiologia Plantarum
https://www.readbyqxmd.com/read/29230485/-importance-of-functional-diagnostics-in-gastroenterology
#9
REVIEW
M Hollenbach, A Hoffmeister, J Rosendahl, J Mössner
In this review article important and frequently used investigation methods for gastrointestinal functional diagnostics are presented. Some other rarely used special investigations are also explained. The hydrogen breath test is simple to carry out, ubiquitously available and enables the detection of lactose, fructose and sorbitol malabsorption. Furthermore, by the application of glucose, the test can be carried out when there is a suspicion of abnormal intestinal bacterial colonization and using lactulose for measuring small intestinal transit time...
December 11, 2017: Der Internist
https://www.readbyqxmd.com/read/29229699/the-nitrogen-regulatory-pii-protein-glnb-and-n-acetyl-glucosamine-6-phosphate-epimerase-nane-allosterically-activate-glucosamine-6-phosphate-deaminase-nagb-in-escherichia-coli
#10
Irina A Rodionova, Norman Goodacre, Mohan Babu, Andrew Emili, Peter Uetz, Milton H Saier
Amino sugars are good sources of both ammonia and fructose-6-phosphate, produced by glucosamine 6-phosphate deaminase, NagB. NagB is known to be allosterically regulated by N-acetyl-glucosamine 6-phosphate (GlcNAc-6P) and the phosphocarrier protein of the bacterial phosphotransferase system, HPr, in Escherichia coli We provide evidence that NanE, GlcNAc-6P epimerase, and the uridylylated PII protein also allosterically activate NagB by direct protein-protein interactions. NanE is essential for neuraminic acid (NANA) and N-acetylmannosamine (ManNAc) utilization, and PII is known to be a central metabolic nitrogen regulator...
December 11, 2017: Journal of Bacteriology
https://www.readbyqxmd.com/read/29229334/broad-range-chemical-profiling-of-natural-deep-eutectic-solvent-extracts-using-a-high-performance-thin-layer-chromatography-based-method
#11
Xiaojie Liu, Samantha Ahlgren, Henrie A A J Korthout, Luis F Salomé-Abarca, Lina M Bayona, Robert Verpoorte, Young Hae Choi
Natural deep eutectic solvents (NADES) made mainly with abundant primary metabolites are being increasingly applied in green chemistry. The advantages of NADES as green solvents have led to their use in novel green products for the food, cosmetics and pharma markets. However, one of the main difficulties encountered in the development of novel products and their quality control arises from their low vapour pressure and high viscosity. These features create the need for the development of new analytical methods suited to this type of sample...
December 6, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/29225223/ph-independent-recognition-of-polyhydroxy-compounds-by-niobium-v-porphyrin-complex-with-unique-sugar-selectivity
#12
Takuya Doi, Norihide Kachikawa, Takashi Yasui, Akio Yuchi
The niobium(V) complex with tetraphenylporphin having OH- as an auxilliay ligand exists as a dimeric complex, [Nb2(tpp)2O3] at a total concentration >10-4.5 mol dm-3, and reacts with an aliphatic or aromatic polyhydroxy compound to form a monomeric complex containing chelate rings by coordination of the deprotonated species, and to cause an appreciable UV-Vis spectral change. In contrast to phenylboronic acid (PBA), the reactivity of [Nb2(tpp)2O3] is independent of pH at least between 4 and 8. Aliphatic comounds are more reactive than aromatic compounds in dioxane-water, while the reactivity order is reversed in the two-phase reaction...
2017: Analytical Sciences: the International Journal of the Japan Society for Analytical Chemistry
https://www.readbyqxmd.com/read/29225114/fructose-induced-inflammation-and-increased-cortisol-a-new-mechanism-for-how-sugar-induces-visceral-adiposity
#13
REVIEW
James J DiNicolantonio, Varshil Mehta, Neema Onkaramurthy, James H O'Keefe
Traditionally, the leading hypothesis regarding the development of obesity involves caloric imbalance, whereby the amount of calories consumed exceeds the amount of calories burned which causes obesity. Another hypothesis for why we get fat has surfaced in the last decade which is the idea that the overconsumption of added sugars and refined carbohydrates induce insulin resistance and high insulin levels causing obesity. While insulin is a fat-storing hormone, this hypothesis does not explain visceral adiposity, or why certain people are found to have fat stored in and around their organs...
December 7, 2017: Progress in Cardiovascular Diseases
https://www.readbyqxmd.com/read/29225094/the-sweet-effect-comparative-assessments-of-dietary-sugars-on-cognitive-performance
#14
Rachel Ginieis, Elizabeth A Franz, Indrawati Oey, Mei Peng
In recent years there has been increasing interest in studying cognitive effects associated with sugar consumption. Neuro-cognitive research has confirmed that glucose, as a main energy substrate for the brain, can momentarily benefit cognitive performances, particularly for memory functioning. However, there is still limited understanding of relative effects of other common sugars (e.g., fructose and sucrose) on cognitive performance. The present study tested in 49 people the effects of three common dietary sugars against a placebo sweetener (i...
December 7, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/29222961/liver-zonation-in-children-with-nafld-associations-with-dietary-fructose-and-uric-acid-concentrations
#15
Valerio Nobili, Antonella Mosca, Rita De Vito, Massimiliano Raponi, Eleonora Scorletti, Christopher D Byrne
BACKGROUND & AIMS: As dietary components are delivered directly to the periportal zone of the liver lobule, there is the potential for greater injury in this zone (zone 1) compared to the perivenous zone (zone 3). We investigated the associations between dietary fructose consumption and uric acid concentrations and differential zonal injury in periportal and perivenous zones. METHODS: 271 children's histological images were scored in five periportal and five perivenous...
December 9, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/29222806/identification-of-udp-glucose-binding-site-in-glycosyltransferase-domain-of-sucrose-phosphate-synthase-from-sugarcane-saccharum-officinarum-by-structure-based-site-directed-mutagenesis
#16
REVIEW
Widhi Dyah Sawitri, Siti Nurul Afidah, Atsushi Nakagawa, Toshiharu Hase, Bambang Sugiharto
Sucrose phosphate synthase (SPS) is believed to be the key enzyme for controlling the biosynthesis of sucrose. SPSs consist of a functional glycosyltransferase domain that shares conserved residues with the glycosyltransferase domain of sucrose biosynthesis-related protein. The formation of sucrose-6-phosphate is catalyzed by SPS with the transfer of a glycosyl group of uridine diphosphate glucose (UDP-G) as an activated donor sugar to a fructose-6-phosphate as a sugar acceptor. However, understanding of the mechanism of catalytic and substrate binding in SPS is very limited...
December 8, 2017: Biophysical Reviews
https://www.readbyqxmd.com/read/29222328/fructose-and-glucose-regulate-mammalian-target-of-rapamycin-complex-1-and-can-activate-lipogenic-gene-expression-via-distinct-pathways
#17
Yue Hu, Ivana Semova, Xiaowei Sun, Hong Kang, Satyapal Chahar, Anthony N Hollenberg, David Masson, Matthew D Hirschey, Ji Miao, Sudha B Biddinger
Though calorically equivalent to glucose, fructose appears to be more lipogenic, leading to dyslipidemia, fatty liver disease, cardiovascular disease, and diabetes. To better understand how fructose induces lipogenesis, we compared the effects of fructose and glucose on the mTORC1 signaling node, a central regulator of lipogenesis. We found that fructose acutely and transiently suppressed mTORC1 signaling in vitro and in vivo. The constitutive activation of mTORC1 reduced hepatic lipogenic gene expression and produced hypotriglyceridemia after one week of fructose feeding...
December 8, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29221682/effects-of-fructose-consumption-on-food-intake-and-biochemical-and-body-parameters-in-wistar-rats
#18
Viviane Wagner Ramos, Leandro Oliveira Batista, Kelse Tibau Albuquerque
INTRODUTION AND OBJECTIVE: Increased fructose consumption is associated with various metabolic changes that favor the onset of obesity and related comorbidities. The objective of this study was to assess the effects of chronic fructose consumption on body weight and adipose tissue, as well as on serum glucose and triglyceride levels. METHODS: Thirty-day-old Wistar rats were divided into two groups: fructose (F) and control (C), which had free access to commercial chow and either water or a 20% fructose solution...
December 5, 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/29221144/ucp2-overexpression-enhanced-glycolysis-via-activation-of-pfkfb2-during-skin-cell-transformation
#19
Annapoorna Sreedhar, Petra Petruska, Sumitra Miriyala, Manikandan Panchatcharam, Yunfeng Zhao
Uncoupling protein 2 (UCP2) is an inner mitochondrial membrane transporter which is often upregulated in human cancers. However, how this anion transporter affects tumorigenesis is not well understood. Using the skin cell transformation JB6 model, we demonstrated that UCP2 overexpression activated phosphofructokinase 2/fructose-2,6-bisphosphatase 2 (PFKFB2), a key regulator of glycolysis. In conjunction, upregulation of PFKFB2 expression correlated with elevated fructose 2,6-bisphosphate (Fru-2,6-P2) levels, 6-phosphofructo-1-kinase (PFK-1) activity, glucose uptake, and lactate production...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29220805/processing-of-wet-kinnow-mandarin-citrus-reticulata-fruit-waste-into-novel-br%C3%A3-nsted-acidic-ionic-liquids-and-their-application-in-hydrolysis-of-sucrose
#20
Pratibha Dwivedi, Mangat Singh, Naina Sehra, Nishant Pandey, Rajender S Sangwan, Bhuwan B Mishra
In citrus processing industries, where up to 60% of the whole fruit is discarded, generates citrus waste (peel, seeds, membrane, and pulp) on a massive scale. The waste does not currently have high-value applications, instead the majority is disposed of or pelletized for animal feed. Therefore, a concise and efficacious protocol for processing of Kinnow mandarin (Citrus reticulata) fruit waste to numerous novel Brønsted acidic ionic liquids (3a-k) have been developed. BAILs were characterized using spectroscopic techniques (FT-IR and NMR)...
December 2, 2017: Bioresource Technology
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