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https://www.readbyqxmd.com/read/28813688/isolation-and-characterization-of-non-sulfated-and-sulfated-triterpenoid-saponins-from-fagonia-indica
#1
Nayab Kanwal, Achyut Adhikari, Abdul Hameed, Rahman M Hafizur, Syed Ghulam Musharraf
Seven previously undescribed, sulfated triterpenoid glycosides, named nayabin A-G along with a known triterpenoid glycoside were isolated from the whole plant of Fagonia indica. Their structures were elucidated through spectral studies including 1D- ((1)H and (13)C), 2D-NMR spectroscopy (HSQC, HMBC, COSY and NOESY), and mass spectrometry (ESI-MS/MS). β-D-Glucopyranosyl 3β-hydroxy-23-O-β-D-glucopyranosyloxy-taraxast-20-en-28-oate, a known compound exerts glucose-dependent insulin secretory activity, which seems to exhibit a decreased risk of drug-induced hypoglycemia and may offer distinct advantages as anti-diabetic agent...
August 13, 2017: Phytochemistry
https://www.readbyqxmd.com/read/28813686/genetic-and-functional-characterization-of-a-novel-gh10-endo-%C3%AE-1-4-xylanase-with-a-ricin-type-%C3%AE-trefoil-domain-like-domain-from-luteimicrobium-xylanilyticum-hy-24
#2
Do Young Kim, Sun Hwa Lee, Min Ji Lee, Han-Young Cho, Jong Suk Lee, Young Ha Rhee, Dong-Ha Shin, Kwang-Hee Son, Ho-Yong Park
The gene (1488-bp) encoding a novel GH10 endo-β-1,4-xylanase (XylM) consisting of an N-terminal catalytic GH10 domain and a C-terminal ricin-type β-trefoil lectin domain-like (RICIN) domain was identified from Luteimicrobium xylanilyticum HY-24. The GH10 domain of XylM was 72% identical to that of Micromonospora lupini endo-β-1,4-xylanase and the RICIN domain was 67% identical to that of Actinospica robiniae hypothetical protein. The recombinant enzyme (rXylM: 49kDa) exhibited maximum activity toward beechwood xylan at 65°C and pH 6...
August 13, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28811158/high-hcv-cure-rates-for-people-who-use-drugs-treated-with-direct-acting-antiviral-therapy-at-an-urban-primary-care-clinic
#3
Brianna L Norton, Julia Fleming, Marcus A Bachhuber, Meredith Steinman, Joseph DeLuca, Chinazo O Cunningham, Nirah Johnson, Fabienne Laraque, Alain H Litwin
BACKGROUND: Though direct acting antivirals (DAAs) promise high cure rates, many providers and payers remain concerned about successful treatment for people who use drugs (PWUD), even among those engaged in opioid agonist treatment (OAT). The efficacy of DAAs among PWUD in real-world settings is unclear. METHODS: We conducted a cohort study of patients initiating HCV treatment between January 2014 and August 2015 (n=89) at a primary care clinic in the Bronx, NY...
August 12, 2017: International Journal on Drug Policy
https://www.readbyqxmd.com/read/28806638/patient-preferences-and-extended-release-naltrexone-a-new-opportunity-to-treat-opioid-use-disorders-in-ukraine
#4
Ruthanne Marcus, Iuliia Makarenko, Alyona Mazhnaya, Alexei Zelenev, Maxim Polonsky, Lynn Madden, Sergii Filippovych, Sergii Dvoriak, Sandra A Springer, Frederick L Altice
BACKGROUND: Scaling up HIV prevention for people who inject drugs (PWID) using opioid agonist therapies (OAT) in Ukraine has been restricted by individual and structural factors. Extended-release naltrexone (XR-NTX), however, provides new opportunities for treating opioid use disorders (OUDs) in this region, where both HIV incidence and mortality continue to increase. METHODS: Survey results from 1613 randomly selected PWID from 5 regions in Ukraine who were currently, previously or never on OAT were analyzed for their preference of pharmacological therapies for treating OUDs...
August 5, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28805901/effect-of-stocking-density-on-performance-diet-selection-total-tract-digestion-and-nitrogen-balance-among-heifers-grazing-cool-season-annual-forages
#5
B R Brunsvig, A J Smart, E A Bailey, C L Wright, E E Grings, D W Brake
Grazing annual cool-season forages after oat grain harvest in South Dakota may allow an opportunity to increase efficient use of tillable land. However, data are limited regarding effects of stocking density on diet selection, nutrient digestion, performance, and N retention by cattle grazing annual cool-season forage. Heifers were blocked by initial BW (261 ± 11.7 kg) and randomly assigned to 1 of 12 paddocks (1.1 ha) to graze a mixture of grass and brassica for 48 d. Each paddock contained 3, 4, or 5 heifers to achieve 4 replicates of each stocking density treatment...
August 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28804928/the-comet-assay-for-detection-of-dna-damage-in-canine-sperm
#6
A F Pereira, P Borges, A Fontbonne, L Cardoso, I Gaivão, A Martins-Bessa
Sperm DNA integrity is a fundamental prerequisite in fertilization and embryo development. Among DNA integrity tests, the Comet assay is an accurate and sensitive test for the detection of sperm oxidative damage. The aim of this work was to evaluate sperm oxidative damage using the Comet assay and to study the correlation between Comet and routine assays for the evaluation of semen quality. Dogs were divided in two groups: group A (n = 6), comprising dogs with abnormal spermiogram, that is astheno-, terato- or oligoasthenoteratozoospermic (OAT); and group B (n = 8), comprising normospermic dogs...
August 13, 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28801052/accompaniment-of-second-trimester-abortions-the-model-of-the-feminist-socorrista-network-of-argentina
#7
Ruth Zurbriggen, Brianna Keefe-Oates, Caitlin Gerdts
OBJECTIVE: Legal restrictions on abortion access impact the safety and timing of abortion. Women affected by these laws face barriers to safe care that often result in abortion being delayed. Second-trimester abortion affects vulnerable groups of women disproportionately, and is often more difficult to access. In Argentina, where abortion is legally restricted except in cases of rape or threat to the health of the woman, the Socorristas en Red, a feminist network, offers a model of accompaniment wherein they provide information and support to women seeking second-trimester abortions...
August 8, 2017: Contraception
https://www.readbyqxmd.com/read/28800420/retention-in-medication-assisted-treatment-programs-in-ukraine-identifying-factors-contributing-to-a-continuing-hiv-epidemic
#8
Kostyantyn Dumchev, Sergii Dvoryak, Olena Chernova, Olga Morozova, Frederick L Altice
BACKGROUND: Opioid agonist treatments (OAT) are widely-used, evidence-based strategies for treating opioid dependence and reducing HIV transmission. The positive benefits of OAT are strongly correlated with time spent in treatment, making retention a key indicator for program quality. This study assessed patient retention and associated factors in Ukraine, where OAT was first introduced in 2004. METHODS: Data from clinical records of 2916 patients enrolled in OAT at thirteen sites from 2005 to 2012 were entered into an electronic monitoring system...
August 8, 2017: International Journal on Drug Policy
https://www.readbyqxmd.com/read/28799075/amino-acid-insertion-frequencies-arising-from-photoproducts-generated-using-aliphatic-diazirines
#9
Daniel S Ziemianowicz, Ryan Bomgarden, Chris Etienne, David C Schriemer
Mapping proteins with chemical reagents and mass spectrometry can generate a measure of accessible surface area, which in turn can be used to support the modeling and refinement of protein structures. Photolytically generated carbenes are a promising class of reagent for this purpose. Substituent effects appear to influence surface mapping properties, allowing for a useful measure of design control. However, to use carbene labeling data in a quantitative manner for modeling activities, we require a better understanding of their inherent amino acid reactivity, so that incorporation data can be normalized...
August 10, 2017: Journal of the American Society for Mass Spectrometry
https://www.readbyqxmd.com/read/28796591/utilization-of-buprenorphine-and-methadone-among-opioid-users-who-inject-drugs
#10
Judith I Tsui, Richard Burt, Hanne Thiede, Sara N Glick
BACKGROUND: There has been a rise in opioid abuse and related injection drug use in the United States and treatment for opioid use disorders may be underutilized. The study aim was to describe utilization of opioid agonist therapy (OAT), and assess factors associated with utilization of OAT, among persons who inject drugs (PWID) in the Seattle metropolitan area. METHODS: We used data from the 2015 National HIV Behavioral Surveillance (NHBS) system among PWID in the Seattle area...
August 10, 2017: Substance Abuse
https://www.readbyqxmd.com/read/28794927/development-of-functional-fermented-whey-oat-based-product-using-probiotic-bacteria
#11
Poorva Sharma, Neetika Trivedi, Yogesh Gat
The aim of the present study was to formulate a fermented whey product using probiotic bacteria and whey protein concentrate (WPC containing 70% of proteins) to obtain a fermented product with low lactose and β-lactoglobulin (BLG) content. Several factors such as starter culture concentration (1, 5, and 10%) and fermentation time (2, 4, 6, 8, and 10 h) were optimized on the basis of growth activity in terms of viable count, pH, and acidity. Starter culture concentration and fermentation time of 5% and 10 h, respectively, show the optimal viable count (9...
August 2017: 3 Biotech
https://www.readbyqxmd.com/read/28782617/dual-enzyme-modified-oat-starch-structural-characterisation-rheological-properties-and-digestibility-in-simulated-gi-tract
#12
Asima Shah, F A Masoodi, Adil Gani, Bilal Ashwar
Oat starches from three different varieties were treated with combination of β-amylase and transglucosidase and their structural, rheological, thermal, and digestibility through simulated GI tract conditions were investigated. By dual enzyme modification, the granules form a discontinuous compact fibrous structure with many surface cracks. The transformation from A-type to A+V type pattern with decrease in crystallinity was observed in dual enzyme modified starches. The ratio of intensity, 1047/1022cm(-1) and 995/1022cm(-1) of enzyme modified starches were reduced compared to their native ones as revealed from FTIR spectra...
August 4, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28777799/implementation-of-a-diabetes-in-pregnancy-clinical-register-in-a-complex-setting-findings-from-a-process-evaluation
#13
Renae Kirkham, Cherie Whitbread, Christine Connors, Elizabeth Moore, Jacqueline A Boyle, Richa Richa, Federica Barzi, Shu Li, Michelle Dowden, Jeremy Oats, Chrissie Inglis, Margaret Cotter, Harold D McIntyre, Marie Kirkwood, Paula Van Dokkum, Stacey Svenson, Paul Zimmet, Jonathan E Shaw, Kerin O'Dea, Alex Brown, Louise Maple-Brown
BACKGROUND: Rates of diabetes in pregnancy are disproportionately higher among Aboriginal than non-Aboriginal women in Australia. Additional challenges are posed by the context of Aboriginal health including remoteness and disadvantage. A clinical register was established in 2011 to improve care coordination, and as an epidemiological and quality assurance tool. This paper presents results from a process evaluation identifying what worked well, persisting challenges and opportunities for improvement...
2017: PloS One
https://www.readbyqxmd.com/read/28774291/health-service-changes-to-address-diabetes-in-pregnancy-in-a-complex-setting-perspectives-of-health-professionals
#14
R Kirkham, J A Boyle, C Whitbread, M Dowden, C Connors, S Corpus, L McCarthy, J Oats, H D McIntyre, E Moore, K O'Dea, A Brown, L Maple-Brown
BACKGROUND: Australian Aboriginal and Torres Strait Islander women have high rates of gestational and pre-existing type 2 diabetes in pregnancy. The Northern Territory (NT) Diabetes in Pregnancy Partnership was established to enhance systems and services to improve health outcomes. It has three arms: a clinical register, developing models of care and a longitudinal birth cohort. This study used a process evaluation to report on health professional's perceptions of models of care and related quality improvement activities since the implementation of the Partnership...
August 3, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28768996/functional-expression-of-organic-ion-transporters-in-astrocytes-and-their-potential-as-a-drug-target-in-the-treatment-of-central-nervous-system-diseases
#15
Tomomi Furihata, Naohiko Anzai
It has become widely acknowledged that astrocytes play essential roles in maintaining physiological central nervous system (CNS) activities. Astrocytes fulfill their roles partly through the manipulation of their plasma membrane transporter functions, and therefore these transporters have been regarded as promising drug targets for various CNS diseases. A representative example is excitatory amino acid transporter 2 (EAAT2), which works as a critical regulator of excitatory signal transduction through its glutamate uptake activity at the tripartite synapse...
2017: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28766148/biology-and-management-of-avena-fatua-and-avena-ludoviciana-two-noxious-weed-species-of-agro-ecosystems
#16
Ali Ahsan Bajwa, Muhammad Javaid Akhter, Nadeem Iqbal, Arslan Masood Peerzada, Zarka Hanif, Sudheesh Manalil, Saima Hashim, Hafiz Haider Ali, Lynda Kebaso, David Frimpong, Halima Namubiru, Bhagirath Singh Chauhan
Avena fatua and Avena ludoviciana are closely related grass weed species infesting a large number of crops around the world. These species are widely distributed in diverse agro-ecosystems from temperate to sub-tropical regions due to their unique seed traits, successful germination ecology, high competitive ability, and allelopathic potential. A. fatua is more widespread, adaptable, and problematic than A. ludoviciana. Both these species infest major winter and spring crops, including wheat, oat, barley, canola, maize, alfalfa, and sunflower, causing up to 70% yield losses depending on crop species and weed density...
August 2, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28766038/intensive-grazing-and-maize-silage-to-enhance-the-sustainability-of-small-scale-dairy-systems-in-the-highlands-of-mexico
#17
Fernando Prospero-Bernal, Carlos Galdino Martínez-García, Rafael Olea-Pérez, Felipe López-González, Carlos Manuel Arriaga-Jordán
The effects of two innovative feeding strategies-intensive grazing (GR) and maize silage (MS)-on the sustainability of small-scale dairy systems (SSDS) were assessed in the highlands of central Mexico. On a total of 24 farms, four innovations were adopted between 2011 and 2014. Five farms continued their conventional feeding strategy (CC) of cut-and-carry pasture supplemented with commercial concentrate and ground corn grain, as well as straws (maize, oat, and wheat) in the dry season of feed scarcity; six farms implemented MS in the dry season; six farms GR of pastures; and seven farms implemented both GR and MS...
August 1, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28765282/the-drug-transporter-oat3-slc22a8-regulates-endogenous-metabolite-flow-through-the-gut-liver-kidney-axis
#18
Kevin T Bush, Wei Wu, Christina Lun, Sanjay K Nigam
The organic anion transporters OAT1 (SLC22A6) and OAT3 (SLC22A8) have similar substrate specificity for drugs, but it is far from clear whether this holds for endogenous substrates. By analysis of more than 600 metabolites in the Oat3KO by LCMS, we demonstrate OAT3 involvement in the movement of gut microbiome-derived products, key metabolites and signaling molecules, including those flowing through the gut-liver-kidney axis. Major pathways affected included those involved in metabolism of bile acids, flavonoids, nutrients, amino acids (including tryptophan-derivatives that are uremic solutes) and lipids...
August 1, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28763015/effect-of-non-dairy-food-matrices-on-the-survival-of-probiotic-bacteria-during-storage
#19
Min Min, Craig R Bunt, Susan L Mason, Grant N Bennett, Malik A Hussain
The viability of probiotics in non-dairy food products during storage is required to meet content criteria for probiotic products. This study investigated whether non-dairy foods could be matrices for probiotics. Selected probiotic bacteria were coated on non-dairy foods under two storage conditions, and viabilities were assessed. The non-dairy foods were coated with 5-7 log cfu g(-1) of Lactobacillus acidophilus ATCC4356(T), Lactobacillus plantarum RC30, and Bifidobacterium longum ATCC15707(T). The coated non-dairy foods were stored at 20 °C and 20% relative humidity (RH) or 30 °C and 50% RH...
August 1, 2017: Microorganisms
https://www.readbyqxmd.com/read/28762002/development-of-a-bifunctional-xylanase-cellulase-chimera-with-enhanced-activity-on-rice-and-barley-straws-using-a-modular-xylanase-and-an-endoglucanase-procured-from-camel-rumen-metagenome
#20
Kamran Khalili Ghadikolaei, Kambiz Akbari Noghabi, Hossein Shahbani Zahiri
The camel rumen metagenome is an untapped source of glycoside hydrolases. In this study, novel genes encoding for a modular xylanase (XylC) and a cellulase (CelC) were isolated from a camel rumen metagenome and expressed in Escherichia coli BL21 (DE3). XylC with xylanase (Xyn), CBM, and carbohydrate esterase (CE) domains was characterized as a β-1,4-endoxylanase with remarkable catalytic activity on oat-spelt xylan (K cat = 2919 ± 57 s(-1)). The implication of XylC's modular structure in its high catalytic activity was analyzed by truncation and fusion construction with CelC...
August 1, 2017: Applied Microbiology and Biotechnology
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