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Beta-glucans

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https://www.readbyqxmd.com/read/29734706/phenotypic-and-physiological-evaluation-of-two-and-six-rows-barley-under-different-environmental-conditions
#1
Mahmoud Naser, Mohamed Badran, Hanaa Abouzied, Heba Ali, Ibrahim Elbasyoni
In recent years, barley has attracted more interest as a food and feed source because of its high soluble dietary fiber and β-glucan content compared with other small grains. Twenty-five barley genotypes (20 imported genotypes and five check cultivars) were grown in three environments for two successive seasons: 2015/2016 and 2016/2017. The first environment was in El-Nubaria, Alexandria, Egypt during 2015/2016, while the second and third environments were in El-Bostan, Elbhera, Egypt during 2015/2016 and 2016/2017...
May 4, 2018: Plants (Basel, Switzerland)
https://www.readbyqxmd.com/read/29710434/improved-hcp-reduction-using-a-new-all-synthetic-depth-filtration-media-within-an-antibody-purification-process
#2
Hoang C Nguyen, Amie L Langland, John P Amara, Michael Dullen, David S Kahn, Joseph A Costanzo
Biologic manufacturing processes typically employ clarification technologies like depth filtration to remove insoluble and soluble impurities. Conventional depth filtration media used in these processes contain naturally-derived components like diatomaceous earth and cellulose. These components may introduce performance variability and contribute extractable/leachable components like beta-glucans that could interfere with limulus amebocyte lysate endotoxin assays. Recently a novel, all-synthetic depth filtration media was developed (Millistak+® HC Pro X0SP) that may improve process consistency, efficiency, and drug substance product quality by reducing soluble process impurities...
April 30, 2018: Biotechnology Journal
https://www.readbyqxmd.com/read/29648596/unraveling-synthesis-of-the-cryptococcal-cell-wall-and-capsule
#3
Zhuo A Wang, Lucy X Li, Tamara L Doering
Fungal pathogens cause devastating infections in millions of individuals each year, representing a huge but underappreciated burden on human health. One of these, the opportunistic fungus Cryptococcus neoformans, kills hundreds of thousands of patients annually, disproportionately affecting people in resource-limited areas. This yeast is distinguished from other pathogenic fungi by a polysaccharide capsule that is displayed on the cell surface. The capsule consists of two complex polysaccharide polymers: a mannan substituted with xylose and glucuronic acid, and a galactan with galactomannan side chains that bear variable amounts of glucuronic acid and xylose...
April 10, 2018: Glycobiology
https://www.readbyqxmd.com/read/29604620/supplementation-of-caricol%C3%A2-gastro-reduces-chronic-gastritis-disease-associated-pain
#4
Friedrich-Anton Weiser, Michael Fangl, Wilhelm Mosgoeller
OBJECTIVE: Papaya and oats are natural food and used in traditional medicine in many parts of the world. Papaya has a high content of enzymes supporting digestive function. Oats are a source of minerals, beta-glucan fibres, immunmodulatory and antiinflammatory probiotic substances. Caricol®-Gastro combines both constituents, it was designed as vegan organic preparation for intestinal inflammatory diseases. We performed a randomized, double blind placebo controlled clinical trial to investigate the potential of Caricol®-Gastro as add on therapy in patients with diagnosed chronic gastritis...
March 1, 2018: Neuro Endocrinology Letters
https://www.readbyqxmd.com/read/29579935/characterization-of-oat-beta-glucan-and-coenzyme-q10-loaded-beta-glucan-powders-generated-by-the-pressurized-gas-expanded-liquid-pgx-technology
#5
Nian Liu, Ricardo Couto, Bernhard Seifried, Paul Moquin, Luis Delgado, Feral Temelli
The physicochemical properties of the oat beta-glucan powder (BG) and coenzyme Q10 (CoQ10)-loaded BG powder (L-BG) produced by the pressurized gas-expanded liquid (PGX) technology were studied. Helium ion microscope, differential scanning calorimeter, X-ray diffractometer, AutoSorb iQ and rheometer were used to determine the particle morphology, thermal properties, crystallinity, surface area and viscosity, respectively. Both BG (7.7μm) and L-BG (6.1μm) were produced as micrometer-scale particles, while CoQ10 nanoparticles (92nm) were adsorbed on the porous structure of L-BG...
April 2018: Food Research International
https://www.readbyqxmd.com/read/29528125/development-of-an-orange-juice-beverage-formulated-with-oat-beta-glucan-and-whey-protein-isolate
#6
Wenjing Wan, Baojun Xu
BACKGROUND: We aimed to develop a beverage using beta-glucan and whey protein isolate (WPI). Furthermore, we evaluated the sensory attributes and changes of the physiochemical properties (pH value, total acidity, total soluble solids, sugar-acid ratio, color, viscosity, turbidity, and browning index) of the beverage during 48-hour storage by comparison with the commercial product and blank sample. RESULTS: The developed beverage had similar sweetness, smoothness, and overall acceptance as those of the commercial and blank samples...
March 12, 2018: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29524446/beta-glucan-enhances-the-response-to-svcv-infection-in-zebrafish
#7
Regla M Medina-Gali, María Del Mar Ortega-Villaizan, Luis Mercado, Beatriz Novoa, Julio Coll, Luis Perez
The antiviral effects of beta-glucan, an immunostimulatory agent were studied in zebrafish both in vitro and in vivo. Here we show that zebrafish ZF4 cells as well as whole fish primed with yeast β-glucan zymosan exhibited increased cytokine expression and elevated response to spring viremia of carp virus (SVCV) infection. In vitro, previous treatment of β-glucan enhanced ZF4 cell viability against SVCV infection which is associated to the activation of interferon signaling pathway and inflammatory cytokines gene expression...
March 7, 2018: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/29486797/a-randomized-controlled-trial-evaluating-the-efficacy-and-safety-of-bth1677-in-combination-with-bevacizumab-carboplatin-and-paclitaxel-in-first-line-treatment-of-advanced-non-small-cell-lung-cancer
#8
Walburga Engel-Riedel, Jamie Lowe, Paulette Mattson, J Richard Trout, Richard D Huhn, Michele Gargano, Myra L Patchen, Richard Walsh, My My Trinh, Mariève Dupuis, Folker Schneller
BACKGROUND: BTH1677, a beta-glucan pathogen-associated molecular pattern molecule, drives an anti-cancer immune response in combination with oncology antibody therapies. This phase II study explored the efficacy, pharmacokinetics (PK), and safety of BTH1677 combined with bevacizumab/carboplatin/paclitaxel in patients with untreated advanced non-small cell lung cancer (NSCLC). METHODS: Patients were randomized to the BTH1677 arm (N = 61; intravenous [IV] BTH1677, 4 mg/kg, weekly; IV bevacizumab, 15 mg/kg, once each 3-week cycle [Q3W]; IV carboplatin, 6 mg/mL/min Calvert formula area-under-the-curve, Q3W; and IV paclitaxel, 200 mg/m2 , Q3W) or Control arm (N = 31; bevacizumab/carboplatin/paclitaxel as above)...
February 27, 2018: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/29485753/a-novel-meloidogyne-graminicola-effector-mgmo237-interacts-with-multiple-host-defence-related-proteins-to-manipulate-plant-basal-immunity-and-promote-parasitism
#9
Jiansong Chen, Lili Hu, Longhua Sun, Borong Lin, Kun Huang, Kan Zhuo, Jinling Liao
Plant-parasitic nematodes can secrete effector proteins into the host tissue to facilitate their parasitism. In this study, we report a novel effector protein, MgMO237, from Meloidogyne graminicola, which is exclusively expressed within the dorsal oesophageal gland cell and markedly up-regulated in parasitic third-/fourth-stage juveniles of M. graminicola. Transient expression of MgMO237 in protoplasts from rice roots showed that MgMO237 was localized in the cytoplasm and nucleus of the host cells. Rice plants overexpressing MgMO237 showed an increased susceptibility to M...
February 27, 2018: Molecular Plant Pathology
https://www.readbyqxmd.com/read/29467823/in-vitro-and-in-vivo-characterization-of-three-cellvibrio-japonicus-glycoside-hydrolase-family-5-members-reveals-potent-xyloglucan-backbone-cleaving-functions
#10
Mohamed A Attia, Cassandra E Nelson, Wendy A Offen, Namrata Jain, Gideon J Davies, Jeffrey G Gardner, Harry Brumer
Background: Xyloglucan (XyG) is a ubiquitous and fundamental polysaccharide of plant cell walls. Due to its structural complexity, XyG requires a combination of backbone-cleaving and sidechain-debranching enzymes for complete deconstruction into its component monosaccharides. The soil saprophyte Cellvibrio japonicus has emerged as a genetically tractable model system to study biomass saccharification, in part due to its innate capacity to utilize a wide range of plant polysaccharides for growth...
2018: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/29363342/the-effect-of-beta-glucan-on-mtx-induced-testicular-damage-in-rats
#11
F Koc, Z Erısgın, Y Tekelıoglu, S Takır
We investigated the histopathological effects of methotrexate (MTX), a chemotherapeutic agent, and beta glucan (BG), an antioxidant, on rat testis. We used four groups of Sprague-Dawley male rats: MTX, MTX + BG, BG, and control. The MTX group was exposed to a single dose of MTX on the first day of experiment. The MTX + BG group was exposed to a single dose of MTX and BG on the first day of experiment followed by BG for 4 additional days. The BG group was exposed to BG for 5 days. The control group was given saline for 5 days...
January 24, 2018: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/29358800/effects-of-beta-glucan-and-resistant-starch-on-wheat-dough-and-prebiotic-bread-properties
#12
Zahra Mohebbi, Aziz Homayouni, Mohammad Hossein Azizi, Sayyed Javad Hosseini
White wheat flour is a poor source of dietary fiber. Therefore a demand exists for enrichment of bread with non-digestible prebiotic ingredients that exert health-promoting effects. In this study, the effects of beta-glucan (BG) and resistant starch (RS) on the dough properties and bread-making characteristics were investigated. The water absorption of doughs increased with increasing BG and RS levels. Also, development time and farinograph quality number of BG-enriched doughs remained similar to that of the control while the doughs stability decreased, and all of these values decreased when the RS was added...
January 2018: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/29356277/assessment-of-the-efficacy-of-a-new-complex-antisensitive-skin-cream
#13
Yinjuan Wang, Céline Viennet, Adeline Jeudy, Ferial Fanian, Li He, Philippe Humbert
BACKGROUND: Sensitive skin is frequently complaint in dermatology consultation with cutaneous manifestations such as stinging, redness, dryness, and burning sensation that affect the quality of life. Its pathogenesis is mainly related to dysfunction of neurosensory, skin barrier, and also immune activity. The treatment is generally based on continuous and topical therapy by nonirritating complex. OBJECTIVE: To evaluate the antisensitive function of a new complex cream composed by Yunnan Portulaca oleracea extract, Prinsepia utilis oil, beta-glucan, and sodium hyaluronate extracted from mushroom...
January 22, 2018: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/29275468/targeting-myeloid-derived-suppressor-cells-in-cancer
#14
Waseem Anani, Michael R Shurin
Myeloid derived suppressor cells (MDSC) represent only a minor fraction of circulating blood cells but play an important role in tumor formation and progression. They are a heterogeneous group of cells that influence the tumor microenvironment by depletion of amino acids, oxidative stress, decreased trafficking of antitumor effector cells, and increased regulatory T and regulatory dendritic cell responses. Investigational treatment strategies targeting MDSCs have attempted to inhibit MDSC development and expansion (stem cell factor blockade, modulate of cell signaling, and target MDSC migration and recruitment), inhibit MDSC function (nitric oxide inhibition and reactive oxygen and nitrogen species inhibition), differentiate MDSCs into more mature cells (Vitamins A and D, all-trans retinoic acid, interleukin-2, toll-like receptor 9 inhibitors, taxanes, beta-glucan particles, tumor-derived exosome inhibition, and very small size proteoliposomes), and destroy MDSCs (cytotoxic agents, ephrin A2 degradation, anti-interleukin 13, and histamine blockers)...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29247595/method-for-hull-less-barley-transformation-and-manipulation-of-grain-mixed-linkage-beta-glucan
#15
Wai Li Lim, Helen M Collins, Rohan R Singh, Natalie A J Kibble, Kuok Yap, Jillian Taylor, Geoffrey B Fincher, Rachel A Burton
Hull-less barley is increasingly offering scope for breeding grains with improved characteristics for human nutrition; however, recalcitrance of hull-less cultivars to transformation has limited the use of these varieties. To overcome this limitation, we sought to develop an effective transformation system for hull-less barley using the cultivar Torrens. Torrens yielded a transformation efficiency of 1.8%, using a modified Agrobacterium transformation method. This method was used to over-express genes encoding synthases for the important dietary fiber component, (1,3;1,4)-β-glucan (mixed-linkage glucan), primarily present in starchy endosperm cell walls...
December 16, 2017: Journal of Integrative Plant Biology
https://www.readbyqxmd.com/read/29244718/prebiotic-dietary-fiber-and-gut-health-comparing-the-in-vitro-fermentations-of-beta-glucan-inulin-and-xylooligosaccharide
#16
Justin L Carlson, Jennifer M Erickson, Julie M Hess, Trevor J Gould, Joanne L Slavin
Prebiotic dietary fiber supplements are commonly consumed to help meet fiber recommendations and improve gastrointestinal health by stimulating beneficial bacteria and the production of short-chain fatty acids (SCFAs), molecules beneficial to host health. The objective of this research project was to compare potential prebiotic effects and fermentability of five commonly consumed fibers using an in vitro fermentation system measuring changes in fecal microbiota, total gas production and formation of common SCFAs...
December 15, 2017: Nutrients
https://www.readbyqxmd.com/read/29226760/the-diagnostic-performance-of-the-beta-glucan-assay-in-the-detection-of-intra-amniotic-infection-with-candida-species
#17
Percy Pacora, Roberto Romero, Offer Erez, Eli Maymon, Bogdan Panaitescu, Juan Pedro Kusanovic, Adi L Tarca, Chaur-Dong Hsu, Sonia S Hassan
INTRODUCTION: A bioassay based on the detection of beta-glucan, a constituent of the cell wall of fungi, has been successfully used to diagnose fungal infections in a variety of biological fluids but not yet in the amniotic fluid. OBJECTIVE: To determine the diagnostic performance of a beta-glucan bioassay in the detection of Candida species in the amniotic fluid of women who either did or did not have an intrauterine contraceptive device (IUD) in place during an episode of spontaneous preterm parturition...
December 27, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29174675/designing-an-immunocyte-targeting-delivery-system-by-use-of-beta-glucan
#18
Noriko Miyamoto, Shinichi Mochizuki, Kazuo Sakurai
A β-1,3-d-glucan called Schizophyllan (SPG) can form a novel complex with homo oligodeoxynucleotides (ODNs) via the combination of hydrogen bonding and hydrophobic interactions. Dectin-1 is a major receptor involved in the recognition of β-1,3-d-glucans and expressed on antigen presenting cells (APCs) including macrophages, dendritic cells, monocytes, neutrophils, and a subset of T cells. Therefore, the SPG/ODN complex can be used as APCs cell-specific delivery of functional ODNs including unmethylated CpG sequences (CpG-ODNs)...
January 2, 2018: Vaccine
https://www.readbyqxmd.com/read/29165477/barley-beta-glucans-varying-in-molecular-mass-and-oligomer-structure-affect-cecal-fermentation-and-microbial-composition-but-not-blood-lipid-profiles-in-hypercholesterolemic-rats
#19
Mette S Mikkelsen, Morten G Jensen, Tina S Nielsen
There is an unmet need for appealing and functional barley β-glucan (BG) food matrices that can provide sufficient and active BG doses to consumers. We investigated how molecular mass and oligomer structure important for BG food and health properties affected plasma lipids and gut parameters in hypercholesterolemic rats. Following 3 weeks on a high-cholestrol diet, rats were given a high-cholesterol diet supplemented with either cellulose (control) or purified barley BGs with low (100 or 150 kDa; glucagel or lowBG, respectively) or medium (530 kDa; mediumBG) molecular masses varying in cellotriosyl/cellotetraosyl oligomer ratio for 4 weeks...
December 13, 2017: Food & Function
https://www.readbyqxmd.com/read/29141231/molecular-mechanism-by-which-prominent-human-gut-bacteroidetes-utilize-mixed-linkage-beta-glucans-major-health-promoting-cereal-polysaccharides
#20
Kazune Tamura, Glyn R Hemsworth, Guillaume Déjean, Theresa E Rogers, Nicholas A Pudlo, Karthik Urs, Namrata Jain, Gideon J Davies, Eric C Martens, Harry Brumer
No abstract text is available yet for this article.
November 14, 2017: Cell Reports
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