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Pyae Phyo, Tuo Wang, Yu Yang, Hugh M O'Neill, Mei Hong
In contrast to the well-studied crystalline cellulose of microbial and animal origins, cellulose in plant cell walls is disordered due to its interactions with matrix polysaccharides. Plant cell wall (PCW) is an undisputed source of sustainable global energy, therefore it is important to determine the molecular structure of PCW cellulose. The most reactive component of cellulose is the exocyclic hydroxymethyl group: when it adopts the tg conformation, it stabilizes intra-chain and inter-chain hydrogen bonding, while gt and gg conformations destabilize the hydrogen-bonding network...
March 21, 2018: Biomacromolecules
Xiao Qi Ye, Jin Liu Meng, Bo Zeng, Ming Wu
BACKGROUND: Operation of the Three Gorges Reservoir (TGR, China) imposes a new water fluctuation regime, including a prolonged winter submergence in contrast to the natural short summer flooding of the rivers. The contrasting water temperature regimes may remarkably affect the survival of submerged plants in the TGR. Plant survival in such prolonged flooding might depend on the carbohydrate status of the plants. Therefore, we investigated the effects of water temperature on survival and carbohydrate status in a flood-tolerant plant species and predicted that both survival and carbohydrate status would be improved by lower water temperatures...
2018: PloS One
Richard Mbundu Ilunga, Céline Helbling, Lucie Favre, Tinh-Hai Collet
Obesity is associated with elevated levels of triglycerides, sometimes LDL-cholesterol, and lower levels of HDL-cholesterol. Management should first focus on dietary advices and increased physical activity, while lipid-lowering drugs are indicated only in patients at intermediate or high cardiovascular risk. We summarize nutritional recommendations from scientific societies: although they do not always overlap, they agree on lowering consumption of dietary fat (20-35 % of total energy intake) and favoring non-saturated fatty acids...
March 21, 2018: Revue Médicale Suisse
Diego de Souza Gonçalves, Marina da Silva Ferreira, Susie Coutinho Liedke, Kamilla Xavier Gomes, Gabriel Afonso de Oliveira, Pedro Ernesto Lopes Leão, Gabriele Vargas Cesar, Sergio H Seabra, Juliana Reis Cortines, Arturo Casadevall, Leonardo Nimrichter, Gilberto Barbosa Domont, Magno Rodrigues Junqueira, Jose Mauro Peralta, Allan J Guimaraes
Acanthamoeba castellanii (Ac) are ubiquitously distributed in nature, and by contaminating medical devices such as heart valves and contact lenses, they cause a broad range of clinical presentations to humans. Although several molecules have been described to play a role in Ac pathogenesis, including parasite host-tissue invasion and escaping of host-defense, little information is available on their mechanisms of secretion. Herein, we describe the molecular components secreted by Ac, under different protein availability conditions to simulate host niches...
March 21, 2018: Virulence
Ya-Ni Tang, Cheng-Fu Tan, Wei-Wei Liu, Jie Yan, Chao Wang, Mi Liu, Dong-Hai Lin, Cai-Hua Huang, Lin Du, Mei-Lin Chen, Jiao-Lan Li, Ding-Ming Zhu
OBJECTIVE: We have repeatedly demonstrated that electroacupuncture (EA) of "Neiguan"(PC 6) can improve myocardial ischemia in rats. The present study was designed to investigate the metabolomic profile of peripheral blood se-rum and myocardium involving EA-induced improvement of myocardial ischemia-reperfusion injury (MIRI) in rats by using nuclear magnetic resonance spectroscopy. METHODS: Thirty male SD rats were equally randomized into blank control, model and EA groups...
March 25, 2018: Zhen Ci Yan Jiu, Acupuncture Research
Hualiang Liang, Ahmed Mokrani, Hopeson Chisomo-Kasiya, Ogwok-Manas Wilson-Arop, Haifeng Mi, Ke Ji, Xianping Ge, Mingchun Ren
Facilitative glucose transporters (GLUT) are transmembrane transporters involved in glucose transport across the plasma membrane. In this study, blunt snout bream GLUT2 gene was cloned, and its expression in various tissues and in liver in response to diets with different carbohydrate levels (17.1; 21.8; 26.4; 32.0; 36.3; and 41.9% of dry matter). Blunt snout bream GLUT2 was also characterized. A full-length cDNA fragment of 2577 bp was cloned, which contains a 5'-untranslated region (UTR) of 73 bp, a 3'-UTR of 992 bp, and an open reading frame of 1512 bp that encodes a polypeptide of 503 amino acids with predicted molecular mass of 55...
March 20, 2018: Fish Physiology and Biochemistry
Adrien Lebasnier, Damien Legallois, Boris Bienvenu, Emmanuel Bergot, Cédric Desmonts, Gérard Zalcman, Denis Agostini, Alain Manrique
OBJECTIVE: The identification of cardiac sarcoidosis is challenging as there is no gold standard consensually admitted for its diagnosis. The aim of this study was to evaluate the diagnostic value of the assessment of cardiac dynamic18 F-fluoro-2-deoxyglucose positron emission tomography (18 F-FDG PET/CT) and net influx constant (Ki) in patients suspected of cardiac sarcoidosis. METHODS: Data obtained from 30 biopsy-proven sarcoidosis patients suspected of cardiac sarcoidosis who underwent a 50-min list-mode cardiac dynamic18 F-FDG PET/CT after a 24 h high-fat and low-carbohydrate diet were analyzed...
March 20, 2018: Annals of Nuclear Medicine
Nicolás De Silva, Mirian Samblas, J Alfredo Martínez, Fermín I Milagro
Obesity is usually associated with low-grade inflammation, which determines the appearance of comorbidities like atherosclerosis and insulin resistance. Infiltrated macrophages in adipose tissue are partly responsible of this inflammatory condition. Numerous studies point to the existence of close intercommunication between macrophages and adipocytes and pay particular attention to the proinflammatory cytokines released by both cell types. However, it has been recently described that in both, circulation and tissue level, there are extracellular vesicles (including microvesicles and exosomes) containing miRNAs, mRNAs, and proteins that can influence the inflammatory response...
March 20, 2018: Journal of Physiology and Biochemistry
Dongling Teng, Keyan Wu, Yunyun Sun, Min Zhang, Dan Wang, Jian Wu, Tao Yin, Weijuan Gong, Yanbing Ding, Weiming Xiao, Guotao Lu, Weiqin Li
Background and study aims: Carbohydrate antigen 19-9 (CA199) has been identified as a tumor marker for pancreatic cancer but also increases in benign lesions of the digestive system. However, literature associated with the relationship between CA199 and acute pancreatitis (AP) is limited. This study aimed to focus on serum CA199 level measurements in AP patients and the associated clinical significance. Materials and methods: From January 2006 to December 2015, 1,609 consecutive patients with AP were admitted to our department and included in the study...
February 27, 2018: Oncotarget
Lilong Zhang, Keli Chen, Liang He, Lincai Peng
Background: Pyrolysis has attracted growing interest as a versatile means to convert biomass into valuable products. Wheat straw has been considered to be a promising biomass resource due to its low price and easy availability. However, most of the products obtained from wheat straw pyrolysis are usually of low quality. Hot soda extraction has the advantage of selective dissolution of lignin whilst retaining the carbohydrates. This can selectively convert biomass into high-quality desired products and suppress the formation of undesirable products...
2018: Biotechnology for Biofuels
Caroline Mosbech, Jesper Holck, Anne S Meyer, Jane Wittrup Agger
Background: Glucuronoyl esterases belong to carbohydrate esterase family 15 and catalyze de-esterification. Their natural function is presumed to be cleavage of ester linkages in lignin-carbohydrate complexes particularly those linking lignin and glucuronoyl residues in xylans in hardwood. Results: Here, we show for the first time a detailed product profile of aldouronic acids released from birchwood lignin by a glucuronoyl esterase from the white-rot fungus Cerrena unicolor ( Cu GE)...
2018: Biotechnology for Biofuels
Guanghui Xu, Fan Feng, Shushang Liu, Fei Wang, Gaozan Zheng, Qiao Wang, Lei Cai, Man Guo, Xiao Lian, Hongwei Zhang
Background: Little is known about the clinicopathological features and prognosis in elderly gastric cancer (GC) patients aged 65-79 years. The aim of this study was to evaluate clinicopathological features and prognosis in elderly GC patients. Patients and methods: From May 2008 to December 2014, a total of 5,282 GC patients were enrolled in our present study. Patients were divided into elderly and middle-aged groups. The clinicopathological features and clinical outcomes were analyzed...
2018: OncoTargets and Therapy
Alexia J Murphy-Alford, Melinda White, Liane Lockwood, Andrew Hallahan, Peter S W Davies
AIM: To describe the body composition, dietary intake and physical activity and of paediatric, adolescent and young adult childhood cancer survivors (CCS) and examine the factors that impact body composition after treatment. METHODS: This prospective cross-sectional study involved 74 subjects who were at least three years post treatment. Measurements included anthropometry, whole body potassium counting, air displacement plethysmography, and three day physical activity and diet diaries...
March 7, 2018: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
Karina Panczyk, Karolina Gaweda, Mateusz Drach, Wojciech Plazinski
An extension of the GROMOS 56a6CARBO/CARBO_R force field for hexopyranose-based carbohydrates is presented. The additional parameters describe the conformational properties of uronate residues. The three distinct chemical states of the carboxyl group are considered: deprotonated (negatively charged), protonated (neutral) and esterified (neutral). The parameterization procedure was based on quantum-chemical calculations and the resulting parameters were tested in the context of: (i) flexibility of the pyranose rings under different pH conditions; (ii) conformation of the glycosidic linkage of the (1→4)-type for uronates with different chemical states of carboxyl moieties; (iii) conformation of the exocyclic (i...
March 20, 2018: Journal of Physical Chemistry. B
Ali H El-Far, Babatunji Emmanuel Oyinloye, Masood Sepehrimanesh, Mahmoud A Gab Allah, Ibrahim Abu Reidah, Hazem M Shaheen, Iman Razeghian-Jahromi, Abd El-Wahab A Alsenosy, Ahmed E Noreldin, Soad K Al Jaouni, Shaker A Mousa
Phoenix dactylifera is a useful traditional medicinal plant, mainly the fruit is used, which is the edible part of the plant (Ajwa date). It is now considered to be a valuable source of natural medicinal products against various diseases. Phytochemical investigations have shown that the fruit contains anthocyanins, phenolics, sterols, carotenoids, and flavonoids. The fruits are a rich source of carbohydrates, vitamins, and proteins. P. dactylifera is considered as a complete diet because it also contains different fatty acids, amino acids, proteins, and steroidal substances...
March 19, 2018: Current Drug Discovery Technologies
Dario Giugliano, Maria Ida Maiorino, Giuseppe Bellastella, Katherine Esposito
In the past decades, dietary guidelines focused on reducing saturated fat as the primary strategy for cardiovascular disease prevention, neglecting the many other potential effects of diet on health, in particular the harmful effects of sugar. A greater intake of soft drinks (sugar-sweetened beverages), for example, is associated with a 44% increased prevalence of metabolic syndrome, a higher risk of obesity, and a 26% increased risk of developing diabetes mellitus. Carbohydrates comprise around 55% of the typical western diet, ranging from 200 to 350 g/day in relation to a person's overall caloric intake...
March 19, 2018: Endocrine
Tali Sinai, Shely Ben-Avraham, Inbal Guelmann-Mizrahi, Michael R Goldberg, Larisa Naugolni, Galia Askapa, Yitzhak Katz, Marianna Rachmiel
PURPOSE: The use of soy products is common in young children with cow milk allergy (CMA). The aim was to examine prospectively the association between infantile consumption of soy-based formula, growth parameters and early pubertal signs, in comparison to cow milk-based formula. METHODS: A nested case-control study was conducted, selected from a cohort of infants prospectively followed from birth until the age of 3 years for eating habits and the development of IgE-mediated CMA...
March 20, 2018: European Journal of Nutrition
Bastian Hornung, Vitor A P Martins Dos Santos, Hauke Smidt, Peter J Schaap
Humans are not autonomous entities. We are all living in a complex environment, interacting not only with our peers, but as true holobionts; we are also very much in interaction with our coexisting microbial ecosystems living on and especially within us, in the intestine. Intestinal microorganisms, often collectively referred to as intestinal microbiota, contribute significantly to our daily energy uptake by breaking down complex carbohydrates into simple sugars, which are fermented to short-chain fatty acids and subsequently absorbed by human cells...
2018: Genes & Nutrition
Jionghuang Chen, Ting Zhao, Shengnan Jia, Senhao Zhou, Liangjing Zhou, Shaowen Wang, Guoping Ding, Guixing Jiang, Liping Cao
Background: P38α is a ubiquitous protein kinase, which plays diverse roles in cancers. Surprisingly, P38α functions vary markedly in different cancers (e.g., cancer suppressor vs cancer promoter). However, there is no report on the expression of P38α, the family's most important member, in pancreatic ductal adenocarcinoma (PDAC) and its association with clinicoathological parameters and patients' prognosis. Materials and methods: We retrospectively analyzed 152 patients who underwent surgery and were pathologically diagnosed with PDAC from September 2013 to September 2015...
2018: Journal of Cancer
Carmen Losasso, Ester M Eckert, Eleonora Mastrorilli, Jorg Villiger, Marzia Mancin, Ilaria Patuzzi, Andrea Di Cesare, Veronica Cibin, Federica Barrucci, Jakob Pernthaler, Gianluca Corno, Antonia Ricci
Diet and lifestyle have a strong influence on gut microbiota, which in turn has important implications on a variety of health-related aspects. Despite great advances in the field, it remains unclear to which extent the composition of the gut microbiota is modulated by the intake of animal derived products, compared to a vegetable based diet. Here the specific impact of vegan, vegetarian, and omnivore feeding type on the composition of gut microbiota of 101 adults was investigated among groups homogeneous for variables known to have a role in modulating gut microbial composition such as age, anthropometric variables, ethnicity, and geographic area...
2018: Frontiers in Microbiology
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