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https://www.readbyqxmd.com/read/28447747/lycium%C3%A2-barbarum-polysaccharide-exhibits-cardioprotection-in-an-experimental-model-of-ischemia-reperfusion-damage
#1
Ya-Min Hou, Jie Wang, Xian-Zhao Zhang
Cardiovascular diseases are a major cause of mortality and disability worldwide. The present study investigated the cardio-protective effects of polysaccharides extracted from Lycium barbarum (LB), the fruit of which is traditionally used in Chinese medicine. Polysaccharides were characterized using Fourier transform infrared spectroscopy and high‑performance liquid chromatography techniques. The present study demonstrated that LB polysaccharides are composed of glucose and fructose monosaccharides in a molar ratio of 1:2...
March 7, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28447512/centella-asiatica-enhances-hepatic-antioxidant-status-and-regulates-hepatic-inflammatory-cytokines-in-type-2-diabetic-rats
#2
Ayodeji B Oyenihi, Novel N Chegou, Oluwafemi O Oguntibeju, Bubuya Masola
CONTEXT: Neutralizing the over-activation of oxidative stress and inflammation remains an important goal in the management of type 2 diabetes mellitus (T2DM). Centella asiatica (L.) Urban (Apiaceae) (CA) has been used in traditional folklore in Africa and Asia to treat various ailments including diabetes. OBJECTIVE: We investigated the hepatic antioxidant and anti-inflammatory potential of methanol extract of CA leaves in T2DM. MATERIALS AND METHODS: T2DM was induced in male Sprague-Dawley rats with 10% fructose in drinking water for 14 days followed by a single intraperitoneal injection of streptozotocin (40 mg/kg b...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28447343/impact-of-perinatal-exposure-to-sucrose-or-high-fructose-corn-syrup-hfcs-55-on-adiposity-and-hepatic-lipid-composition-in-rat-offspring
#3
Carla R Toop, Beverly S Muhlhausler, Kerin O'Dea, Sheridan Gentili
Perinatal exposure to excess maternal intake of added sugars, including fructose and sucrose, is associated with an increased risk of obesity and type 2 diabetes in adult life. However, it is unknown to what extent the type of sugar and the timing of exposure affect these outcomes. The aim of this study was to determine the impact of exposure to maternal consumption of a 10% w/v beverage containing sucrose or high fructose corn syrup-55 (HFCS-55) during the prenatal and/or suckling periods on offspring at 3 and 12 weeks, utilising a cross-fostering approach in a rodent model...
April 26, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28447168/effect-of-carbon-sources-on-the-growth-and-ethanol-production-of-native-yeast-pichia-kudriavzevii-itv-s42-isolated-from-sweet-sorghum-juice
#4
L E Díaz-Nava, N Montes-Garcia, J M Domínguez, M G Aguilar-Uscanga
The importance of non-Saccharomyces yeast species in fermentation processes is widely acknowledged. Within this group, Pichia kudriavzevii ITV-S42 yeast strain shows particularly desirable characteristics for ethanol production. Despite this fact, a thorough study of the metabolic and kinetic characteristics of this strain is currently unavailable. The aim of this work is to study the nutritional requirements of Pichia kudriavzevii ITV-S42 strain and the effect of different carbon sources on the growth and ethanol production...
April 26, 2017: Bioprocess and Biosystems Engineering
https://www.readbyqxmd.com/read/28445436/irritable-bowel-syndrome-clinical-manifestations-dietary-influences-and-management
#5
REVIEW
Ronald Ikechi, Bradford D Fischer, Joshua DeSipio, Sangita Phadtare
Irritable bowel syndrome (IBS) is a functional gastrointestinal disorder that is characterized by symptoms of chronic abdominal pain and altered bowel habits in the absence of an overtly identifiable cause. It is the most commonly diagnosed functional gastrointestinal disorder, accounting for about one third of gastroenterology visits. It generally presents as a complex of symptoms, including psychological dysfunction. Hypersensitivity to certain foods, especially foods that contain high amounts of fructose, plays a role in the pathophysiology of IBS...
April 26, 2017: Healthcare (Basel, Switzerland)
https://www.readbyqxmd.com/read/28445389/fructose-glucocorticoids-and-adipose-tissue-implications-for-the-metabolic-syndrome
#6
REVIEW
Balázs Legeza, Paola Marcolongo, Alessandra Gamberucci, Viola Varga, Gábor Bánhegyi, Angiolo Benedetti, Alex Odermatt
The modern Western society lifestyle is characterized by a hyperenergetic, high sugar containing food intake. Sugar intake increased dramatically during the last few decades, due to the excessive consumption of high-sugar drinks and high-fructose corn syrup. Current evidence suggests that high fructose intake when combined with overeating and adiposity promotes adverse metabolic health effects including dyslipidemia, insulin resistance, type II diabetes, and inflammation. Similarly, elevated glucocorticoid levels, especially the enhanced generation of active glucocorticoids in the adipose tissue due to increased 11β-hydroxysteroid dehydrogenase 1 (11β-HSD1) activity, have been associated with metabolic diseases...
April 26, 2017: Nutrients
https://www.readbyqxmd.com/read/28443850/selective-adsorption-of-carbohydrates-and-glycoproteins-via-molecularly-imprinted-hydrogels-application-to-visible-detection-by-a-boronic-acid-monomer
#7
Takuya Kubo, Hayato Furuta, Toyohiro Naito, Tomoharu Sano, Koji Otsuka
Selective adsorption of carbohydrates and glycoproteins was effectively achieved by molecularly imprinted hydrogels (MIHs) with a poly(ethylene glycol) (PEG)-based crosslinker and 4-vinylphenylboronic acid. In addition, an MIH with a novel boronic acid monomer provided selective adsorption and enabled visible detection of fructose.
April 26, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28442647/effects-of-high-fat-diet-and-fructose-rich-diet-on-obesity-dyslipidemia-and-hyperglycemia-in-the-wbn-kob-lepr-fa-rat-a-new-model-of-type-2-diabetes-mellitus
#8
Junichi Namekawa, Yoshiichi Takagi, Kaoru Wakabayashi, Yuki Nakamura, Ayaka Watanabe, Dai Nagakubo, Mitsuyuki Shirai, Fumitoshi Asai
Obesity and type 2 diabetes mellitus (T2DM) are occurring at epidemic-like rates, and these epidemics appear to have emerged largely from changes in daily diet. In the present study, we compared effects of high-fat diet (HFD) and fructose-rich diet (FRD) in WBN/Kob-Lepr(fa) (WBKDF) rats that spontaneously develop obesity, dyslipidemia and T2DM. After a 4-week feeding of each diet, WBKDF-HFD and WBKDF-FRD rats exhibited aggravated obesity and dyslipidemia compared with WBKDF rats fed standard diet (STD). In contrast, hyperglycemia developed in WBKDF-STD rats was significantly inhibited in WBKDF-FRD rats, but not in WBKDF-HFD rats...
April 21, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28441933/identification-and-biochemical-characterization-of-the-fructokinase-gene-family-in-arabidopsis-thaliana
#9
John W Riggs, Philip C Cavales, Sonia M Chapiro, Judy Callis
BACKGROUND: Fructose is an abundant sugar in plants as it is a breakdown product of both major sucrose-cleaving enzymes. To enter metabolism, fructose is phosphorylated by a fructokinase (FRK). Known FRKs are members of a diverse family of carbohydrate/purine kinases known as the phosphofructokinase B (pfkB) family. The complete complement of active fructokinases has not been reported for any plant species. RESULTS: Protein sequence analysis of the 22 Arabidopsis thaliana pfkB members identified eight highly related predicted proteins, including one with previously demonstrated FRK activity...
April 26, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28441908/glucose-fructose-ingestion-and-exercise-performance-the-gastrointestinal-tract-and-beyond
#10
Robin Rosset, Léonie Egli, Virgile Lecoultre
Carbohydrate ingestion can improve endurance exercise performance. In the past two decades, research has repeatedly reported the performance benefits of formulations comprising both glucose and fructose (GLUFRU) over those based on glucose (GLU). This has been usually related to additive effects of these two monosaccharides on the gastrointestinal tract whereby intestinal carbohydrate absorption is enhanced and discomfort limited. This is only a partial explanation, since glucose and fructose are also metabolized through different pathways after being absorbed from the gut...
April 25, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28441628/potassium-deficiency-affects-the-carbon-nitrogen-balance-in-cotton-leaves
#11
Wei Hu, Taylor D Coomer, Dimitra A Loka, Derrick M Oosterhuis, Zhiguo Zhou
Potassium (K) plays important roles in the metabolism of carbon (C) and nitrogen (N), but studies of K deficiency affecting C-N balance are lacking. This study explored the influence of K deficiency on C-N interaction in cotton leaves by conducting a field experiment with cotton cultivar DP0912 under two K rates (K0: 0 kg K2O ha(-1) and K67: 67 kg K2O ha(-1)) and a controlled environment experiment with K-deficient solution (K1: 0 mM K(+)) and K-sufficient solution (K2: 6 mM K(+)). The results showed that leaf K content, leaf number, leaf area, boll number, reproductive dry weight and total dry weight were significant lower under K deficiency (K0 or K1)...
April 6, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28439784/practical-calculation-method-to-estimate-the-absolute-boron-concentration-in-tissues-using-18-f-fbpa-pet
#12
Tadashi Watabe, Kohei Hanaoka, Sadahiro Naka, Yasukazu Kanai, Hayato Ikeda, Masanao Aoki, Eku Shimosegawa, Mitsunori Kirihata, Jun Hatazawa
PURPOSE: The purpose of this study was to establish a practical method to estimate the absolute boron concentrations in the tissues based on the standardized uptake values (SUVs) after administration of 4-borono-phenylalanine (BPA) using 4-borono-2-(18)F-fluoro-phenylalanine ((18)F-FBPA) PET. METHODS: Rat xenograft models of C6 glioma (n = 7, body weight 241 ± 28.0 g) were used for the study. PET was performed 60 min after intravenous injection of (18)F-FBPA (30...
April 24, 2017: Annals of Nuclear Medicine
https://www.readbyqxmd.com/read/28436078/oxygen-isotope-fractionations-across-individual-leaf-carbohydrates-in-grass-and-tree-species
#13
Marco M Lehmann, Bruno Gamarra, Ansgar Kahmen, Rolf T W Siegwolf, Matthias Saurer
Almost no δ(18) O data are available for leaf carbohydrates, leaving a gap in the understanding of the δ(18) O relationship between leaf water and cellulose. We measured δ(18) O values of bulk leaf water (δ(18) OLW ) and individual leaf carbohydrates (e.g. fructose, glucose, sucrose) in grass and tree species, and δ(18) O of leaf cellulose in grasses. The grasses were grown under two relative humidity (rH) conditions. Sucrose was generally (18) O-enriched compared to hexoses across all species with an apparent biosynthetic fractionation factor (εbio ) of more than 27‰ relative to δ(18) OLW , which might be explained by isotopic leaf water and sucrose synthesis gradients...
April 23, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/28436030/tracking-the-behavior-of-maillard-browning-in-lysine-arginine-sugar-model-systems-under-high-hydrostatic-pressure
#14
Xiao-Juan Ma, Jin-Yan Gao, Ping Tong, Xin Li, Hong-Bing Chen
BACKGROUND: High pressure processing is gaining popularity in the food industry. However, its effect on the Maillard reaction during high pressure-assisted pasteurization and sterilization process is not well documented. This study aimed to investigate the effects of high hydrostatic pressure on the Maillard reaction during these processes, using amino acid (lysine or arginine)-sugar (glucose or fructose) solution models. RESULTS: High pressure retarded the intermediate and final stages of the Maillard reaction in the lysine-sugar model, and for lysine-glucose model, degradation rate of Amadori compounds was decelerated...
April 24, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28435686/apple-dwarfing-rootstocks-exhibit-an-imbalance-in-carbohydrate-allocation-and-reduced-cell-growth-and-metabolism
#15
Toshi M Foster, Peter A McAtee, Chethi N Waite, Helen L Boldingh, Tony K McGhie
Apple dwarfing rootstocks cause earlier shoot termination and reduced root and shoot mass. To identify physiological factors responsible for rootstock-induced growth restriction, we compared vascular-enriched gene expression between two dwarfing rootstocks ('M27' and 'M9') and the vigorous rootstock 'M793' using RNA sequencing and quantitative reverse transcriptase PCR. Differentially expressed genes common to both dwarfing rootstocks belonged to five main biological processes: (1) primary metabolism, (2) cell wall synthesis and modification, (3) secondary metabolism, (4) hormone signalling and response and (5) redox homeostasis...
2017: Horticulture Research
https://www.readbyqxmd.com/read/28434046/oral-arginine-supplementation-protects-female-mice-from-the-onset-of-non-alcoholic-steatohepatitis
#16
Cathrin Sellmann, Christian Degen, Cheng Jun Jin, Anika Nier, Anna Janina Engstler, Dana Hasan Alkhatib, Jean-Pascal De Bandt, Ina Bergheim
Dietary arginine (Arg) supplementation has been proposed to have positive effects on the development of liver diseases. In the present study, we investigate if an oral Arg supplementation in diet protects mice fed a fructose, fat and cholesterol enriched Western-style diet (WSD) from the development of non-alcoholic steatohepatitis (NASH). Female C57BL/6J mice were fed a liquid control diet or a liquid WSD ± Arg (2.49 g/kg body weight/day) for 6 weeks. Indices of liver injury, glucose metabolism and intestinal permeability were determined...
April 22, 2017: Amino Acids
https://www.readbyqxmd.com/read/28430983/absence-of-endothelial-er%C3%AE-results-in-arterial-remodeling-and-decreased-stiffness-in-western-diet-fed-male-mice
#17
Camila Manrique-Acevedo, Francisco I Ramirez-Perez, Jaume Padilla, Victoria J Vieira-Potter, Annayya R Aroor, Brady J Barron, Dongqing Chen, Dominic Haertling, Cory Declue, James R Sowers, Luis A Martinez-Lemus
The role of estrogen receptor alpha (ERα) signaling in the vasculature of females has been described under different experimental conditions and our group recently reported that lack of endothelial ERα in female mice fed a Western diet (WD) results in amelioration of vascular stiffness. Conversely, the role of ERα in the male vasculature in this setting has not been explored. In conditions of over-nutrition and insulin resistance, augmented arterial stiffness, endothelial dysfunction and arterial remodeling contribute to the development of cardiovascular disease...
April 18, 2017: Endocrinology
https://www.readbyqxmd.com/read/28429326/wax-ester-fermentation-and-its-application-for-biofuel-production
#18
Hiroshi Inui, Takahiro Ishikawa, Masahiro Tamoi
In Euglena cells under anaerobic conditions, paramylon, the storage polysaccharide, is promptly degraded and converted to wax esters. The wax esters synthesized are composed of saturated fatty acids and alcohols with chain lengths of 10-18, and the major constituents are myristic acid and myristyl alcohol. Since the anaerobic cells gain ATP through the conversion of paramylon to wax esters, the phenomenon is named "wax ester fermentation". The wax ester fermentation is quite unique in that the end products, i...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28429317/biochemistry-and-physiology-of-reactive-oxygen-species-in-euglena
#19
Takahiro Ishikawa, Shun Tamaki, Takanori Maruta, Shigeru Shigeoka
Reactive oxygen species (ROS) such as superoxide and hydrogen peroxide are by-products of various metabolic processes in aerobic organisms including Euglena. Chloroplasts and mitochondria are the main sites of ROS generation by photosynthesis and respiration, respectively, through the active electron transport chain. An efficient antioxidant network is required to maintain intracellular ROS pools at optimal conditions for redox homeostasis. A comparison with the networks of plants and animals revealed that Euglena has acquired some aspects of ROS metabolic process...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28428736/simple-sugar-supplementation-abrogates-exercise-induced-increase-in-hepcidin-in-young-men
#20
Maja Tomczyk, Jakub Kortas, Damian Flis, Wojciech Skrobot, Rafal Camilleri, Jedrzej Antosiewicz
BACKGROUND: At present many young people experience too much body iron accumulation. The reason of this phenomenon is not clear. There is accumulating evidences that not proper diet and lack of exercise could be a main contributing factors. This investigation assessed the effects of a diet rich in simple sugars (glucose or fructose) on exercise-induced hepcidin which is hormone regulating iron metabolism. METHODS: A group of physically active young men completed an incremental exercise test before and after a 3-day diet supplemented with fructose (4 g/kg BM) or glucose (4 g/kg BM)...
2017: Journal of the International Society of Sports Nutrition
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