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https://www.readbyqxmd.com/read/28231602/observational-case-series-evaluation-of-the-granisetron-transdermal-patch-system-sancuso-for-the-management-of-nausea-vomiting-of-pregnancy
#1
Tran N Le, Michael T Adler, Holly Ouillette, Pamela Berens, Judith A Smith
Objective The objective of this study was to observe the efficacy of antiemetic therapy (no emesis/retching episodes and no rescue medication use) when granisetron is administered via a transdermal patch system (TDS) in women who are 6 to 14 weeks pregnant when compared with oral ondansetron by evaluating the frequency of the use of rescue medications for control of nausea/vomiting of pregnancy (NVP). Methods This was an observational case series study to observe the potential benefits of granisetron TDS compared with oral ondansetron for management of NVP in pregnant patients during the first trimester...
February 23, 2017: American Journal of Perinatology
https://www.readbyqxmd.com/read/28231561/structural-analysis-of-rebaudioside-a-derivatives-obtained-by-lactobacillus-reuteri-180-glucansucrase-catalyzed-trans-%C3%AE-glucosylation
#2
Gerrit J Gerwig, Evelien M Te Poele, Lubbert Dijkhuizen, Johannis P Kamerling
The wild-type Gtf180-ΔN glucansucrase enzyme from Lactobacillus reuteri 180 was found to catalyze the α-glucosylation of the steviol glycoside rebaudioside A, using sucrose as glucosyl donor in a transglucosylation process. Structural analysis of the formed products by MALDI-TOF mass spectrometry, methylation analysis and NMR spectroscopy showed that rebaudioside A is specifically α-d-glucosylated at the steviol C-19 β-d-glucosyl moiety (55% conversion). The main product is a mono-(α1 → 6)-glucosylated derivative (RebA-G1)...
January 31, 2017: Carbohydrate Research
https://www.readbyqxmd.com/read/28231537/release-kinetics-of-esterified-p-coumaric-acid-and-ferulic-acid-from-rice-straw-in-mild-alkaline-solution
#3
Tran Ngoc Linh, Hirokata Fujita, Akiyoshi Sakoda
The release kinetics of esterified p-coumaric acid (PCA) and ferulic acid (FA) from rice straw under a mild alkaline condition were investigated to collect fundamental data for the design of a recovery process. The results showed that the straw size, NaOH concentration, and temperature were the key parameters governing release kinetics. The analysis demonstrated that FA is released considerably faster than PCA. The close relationship between lignin and the PCA dissolution indicates a reciprocal and/or simultaneous release...
February 7, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28231485/the-importance-of-teacher-support-differential-impacts-by-gender-and-sexuality
#4
Adrienne B Dessel, Alex Kulick, Laura J Wernick, Daniel Sullivan
Teachers play an important role in shaping the experiences of high school students with regard to patterns of heteronormativity and binary gender norms, particularly for lesbian, gay, bisexual, transgender, and questioning (LGBTQ) students. A climate survey of high school students (n = 953) in the United States examined the association between students' well-being and their relationships with teachers. The sample was majority white (65.8%) and multiracial (14.1%). Cisgender (cis)-girls (49.6%), cis-boys (41...
February 20, 2017: Journal of Adolescence
https://www.readbyqxmd.com/read/28231394/adaptive-divergence-in-wine-yeasts-and-their-wild-relatives-suggests-a-prominent-role-for-introgressions-and-rapid-evolution-at-non-coding-sites
#5
Pedro Almeida, Raquel Barbosa, Douda Bensasson, Paula Gonçalves, José Paulo Sampaio
In Saccharomyces cerevisiae, the main yeast in wine fermentation, the opportunity to examine divergence at the molecular level between a domesticated lineage and its wild counterpart arose recently due to the identification of the closest relatives of wine strains, a wild population associated with Mediterranean oaks. Since genomic data is available for a considerable number of representatives belonging to both groups, we used population genomics to estimate the degree and distribution of nucleotide variation between wine yeasts and their closest wild relatives...
February 23, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28231242/predicting-ebola-infection-a-malaria-sensitive-triage-score-for-ebola-virus-disease
#6
Mary-Anne Hartley, Alyssa Young, Anh-Minh Tran, Harry Henry Okoni-Williams, Mohamed Suma, Brooke Mancuso, Ahmed Al-Dikhari, Mohamed Faouzi
BACKGROUND: The non-specific symptoms of Ebola Virus Disease (EVD) pose a major problem to triage and isolation efforts at Ebola Treatment Centres (ETCs). Under the current triage protocol, half the patients allocated to high-risk "probable" wards were EVD(-): a misclassification speculated to predispose nosocomial EVD infection. A better understanding of the statistical relevance of individual triage symptoms is essential in resource-poor settings where rapid, laboratory-confirmed diagnostics are often unavailable...
February 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28231164/essential-oil-characterization-of-thymus-vulgaris-from-various-geographical-locations
#7
Prabodh Satyal, Brittney L Murray, Robert L McFeeters, William N Setzer
Thyme (Thymus vulgaris L.) is a commonly used flavoring agent and medicinal herb. Several chemotypes of thyme, based on essential oil compositions, have been established, including (1) linalool; (2) borneol; (3) geraniol; (4) sabinene hydrate; (5) thymol; (6) carvacrol, as well as a number of multiple-component chemotypes. In this work, two different T. vulgaris essential oils were obtained from France and two were obtained from Serbia. The chemical compositions were determined using gas chromatography-mass spectrometry...
October 27, 2016: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28231122/phenolic-profiles-and-antioxidant-activity-of-germinated-legumes
#8
Do Tan Khang, Tran Nhan Dung, Abdelnaser Abdelghany Elzaawely, Tran Dang Xuan
Bioactive compounds, which are naturally produced in plants, have been concerned with the food and pharmaceutical industries because of the pharmacological effects on humans. In this study, the individual phenolics of six legumes during germination and antioxidant capacity from sprout extracts were determined. It was found that the phenolic content significantly increased during germination in all legumes. Peanuts showed the strongest antioxidant capacity in both the DPPH• (1,1-diphenyl-2-picrylhydrazyl) method and the reducing power assay (32...
April 9, 2016: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28231085/extraction-identification-and-photo-physical-characterization-of-persimmon-diospyros-kaki-l-carotenoids
#9
Khalil Zaghdoudi, Orleans Ngomo, Régis Vanderesse, Philippe Arnoux, Bauyrzhan Myrzakhmetov, Céline Frochot, Yann Guiavarc'h
Carotenoid pigments were extracted and purified from persimmon fruits using accelerated solvent extraction (ASE). Eleven pigments were isolated and five of them were clearly identified as all-trans-violaxanthine, all-trans-lutein, all-trans-zeaxanthin all-trans-cryptoxanthin and all-trans-β-carotene. Absorption and fluorescence spectra were recorded. To evaluate the potential of ¹O₂ quenching of the purified carotenoids, we used a monocarboxylic porphyrin (P1COOH) as the photosensitizer to produce ¹O₂...
January 12, 2017: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28231077/association-of-genetic-variation-in-the-tachykinin-receptor-3-locus-with-hot-flashes-and-night-sweats-in-the-women-s-health-initiative-study
#10
Carolyn J Crandall, JoAnn E Manson, Chancellor Hohensee, Steve Horvath, Jean Wactawski-Wende, Erin S LeBlanc, Mara Z Vitolins, Rami Nassir, Janet S Sinsheimer
OBJECTIVE: Vasomotor symptoms (VMS, ie, hot flashes or night sweats) are reported by many, but not all, women. The extent to which VMS are genetically determined is unknown. We evaluated the relationship of genetic variation and VMS. METHODS: In this observational study, we accessed data from three genome-wide association studies (GWAS) (SNP Health Association Resource cohort [SHARe], WHI Memory Study cohort [WHIMS+], and Genome-Wide Association Studies of Treatment Response in Randomized Clinical Trials [GARNET] studies, total n = 17,695) of European American, African American, and Hispanic American postmenopausal women aged 50 to 79 years at baseline in the Women's Health Initiative Study...
March 2017: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/28231015/n-heterocyclic-olefin-catalyzed-silylation-and-hydrosilylation-reactions-of-hydroxyl-and-carbonyl-compounds
#11
Uǧur Kaya, Uyen P N Tran, Dieter Enders, Junming Ho, Thanh V Nguyen
N-Heterocyclic olefins (NHOs), the alkylidene derivatives of N-heterocyclic carbenes (NHCs), have recently emerged as a new family of promising organocatalysts with strong nucleophilicity and Brønsted basicity. The development of a novel method is shown using NHOs as efficient promoters for the direct dehydrogenative silylation of alcohols or hydrosilylation of carbonyl compounds. Preliminary results of the first NHO-promoted asymmetric synthesis are also discussed.
February 23, 2017: Organic Letters
https://www.readbyqxmd.com/read/28231009/stereoselective-synthesis-of-the-c1-c9-and-c11-c25-fragments-of-amphidinolides-c-c2-c3-and-f
#12
Daniel C Akwaboah, Dimao Wu, Craig J Forsyth
An efficient synthesis of the C1-C9 and the C11-C25 fragments of amphidinolides C, C2, C3, and F from a common intermediate is reported. The construction of the C1-C9 fragment involves an intramolecular hetero-Michael cyclization to form the 3,5-disubstituted trans-tetrahydrofuran moiety. The approach to prepare the C11-C25 fragment utilizes a highly stereoselective aerobic cobalt-catalyzed alkenol cyclization and a chelated Mukaiyama aldol reaction to form the C13-C14 bond and to concomitantly install the C13 hydroxyl group...
February 23, 2017: Organic Letters
https://www.readbyqxmd.com/read/28230778/caffeic-acid-expands-anti-tumor-effect-of-metformin-in-human-metastatic-cervical-carcinoma-htb-34-cells-implications-of-ampk-activation-and-impairment-of-fatty-acids-de-novo-biosynthesis
#13
Malgorzata Tyszka-Czochara, Pawel Konieczny, Marcin Majka
The efficacy of cancer treatments is often limited and associated with substantial toxicity. Appropriate combination of drug targeting specific mechanisms may regulate metabolism of tumor cells to reduce cancer cell growth and to improve survival. Therefore, we investigated the effects of anti-diabetic drug Metformin (Met) and a natural compound caffeic acid (trans-3,4-dihydroxycinnamic acid, CA) alone and in combination to treat an aggressive metastatic human cervical HTB-34 (ATCC CRL-1550) cancer cell line...
February 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28230773/programmed-death-ligand-1-pd-l1-tumor-expression-is-associated-with-a-better-prognosis-and-diabetic-disease-in-triple-negative-breast-cancer-patients
#14
Gerardo Botti, Francesca Collina, Giosuè Scognamiglio, Federica Rao, Valentina Peluso, Rossella De Cecio, Michela Piezzo, Gabriella Landi, Michelino De Laurentiis, Monica Cantile, Maurizio Di Bonito
Triple Negative Breast Cancers (TNBC) subtype is an aggressive disease with poor clinical outcome. The only treatment available is surgery followed by chemotherapy or radiotherapy. Programmed death-ligand 1 (PD-L1) is a trans-membrane protein expressed on a wide variety of cells including immune cells, epithelial and vascular endothelial cells. Recently, PD-1/PD-L1 pathway signaling was described as an adaptive immune resistance mechanism enacted by the tumor cells to evade the immune response. Its presence on tumor cell membranes, acquired for this reason, through time, is an important prognostic value...
February 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28230758/quantitative-determination-of-stilbenoids-and-dihydroisocoumarins-in-shorea-roxburghii-and-evaluation-of-their-hepatoprotective-activity
#15
Kiyofumi Ninomiya, Saowanee Chaipech, Yusuke Kunikata, Ryohei Yagi, Yutana Pongpiriyadacha, Osamu Muraoka, Toshio Morikawa
A simultaneous quantitative analytical method for 13 stilbenoids including (-)-hopeaphenol (1), (+)-isohopeaphenol (2), hemsleyanol D (3), (-)-ampelopsin H (4), vaticanols A (5), E (6), and G (7), (+)-α-viniferin (8), pauciflorol A (9), hopeafuran (10), (-)-balanocarpol (11), (-)-ampelopsin A (12), and trans-resveratrol 10-C-β-d-glucopyranoside (13), and two dihydroisocoumarins, phayomphenols A₁ (14) and A₂ (15) in the extract of Shorea roxburghii (dipterocarpaceae) was developed. According to the established protocol, distributions of these 15 polyphenols (1-15) in the bark and wood parts of S...
February 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28230329/integrating-trans-abdominal-ultrasonography-with-fecal-steroid-metabolite-monitoring-to-accurately-diagnose-pregnancy-and-predict-the-timing-of-parturition-in-the-red-panda-ailurus-fulgens-styani
#16
Erin Curry, Lissa J Browning, Paul Reinhart, Terri L Roth
Red pandas (Ailurus fulgens styani) exhibit a variable gestation length and may experience a pseudopregnancy indistinguishable from true pregnancy; therefore, it is not possible to deduce an individual's true pregnancy status and parturition date based on breeding dates or fecal progesterone excretion patterns alone. The goal of this study was to evaluate the use of transabdominal ultrasonography for pregnancy diagnosis in red pandas. Two to three females were monitored over 4 consecutive years, generating a total of seven profiles (four pregnancies, two pseudopregnancies, and one lost pregnancy)...
February 23, 2017: Zoo Biology
https://www.readbyqxmd.com/read/28230304/dual-nickel-and-photoredox-catalyzed-enantioselective-desymmetrization-of-cyclic-meso-anhydrides
#17
Erin E Stache, Tomislav Rovis, Abigail G Doyle
The enantioselective desymmetrization of cyclic meso-anhydrides with benzyl trifluoroborates under nickel-photoredox catalysis is described. The reaction tolerates a variety of sterically and electronically different trifluoroborates, as well as structurally unique cyclic anhydrides. The trans isomer of the keto-acid products is also observed at varying levels dependent on the trifluoroborate identity and relative catalyst loading. A mechanism involving decarbonylation and Ni-C bond homolysis of a Ni(II) adduct is proposed...
February 23, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28230242/routine-port-site-excision-in-incidentally-discovered-gallbladder-cancer-is-not-associated-with-improved-survival-a-multi-institution-analysis-from-the-us-extrahepatic-biliary-malignancy-consortium
#18
Cecilia G Ethun, Lauren M Postlewait, Nina Le, Timothy M Pawlik, George Poultsides, Thuy Tran, Kamran Idrees, Chelsea A Isom, Ryan C Fields, Bradley A Krasnick, Sharon M Weber, Ahmed Salem, Robert C G Martin, Charles R Scoggins, Perry Shen, Harveshp D Mogal, Carl Schmidt, Eliza Beal, Ioannis Hatzaras, Rivfka Shenoy, Kenneth Cardona, Shishir K Maithel
BACKGROUND: Current data on the utility of port-site excision (PSE) during re-resection for incidentally discovered gallbladder cancer (IGBC) in the US are conflicting and limited to single-institution series. METHODS: All patients with IGBC who underwent curative re-resection at 10 institutions from 2000 to 2015 were included. Patients with and without PSE were compared. Primary outcome was overall survival (OS). RESULTS: Of 449 pts with GBC, 266 were incidentally discovered, of which 193(73%) underwent curative re-resection and had port-site data; 47 pts(24%) underwent PSE, 146(76%) did not...
February 23, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28230215/graphene-modulated-photo-absorption-in-adsorbed-azobenzene-monolayers
#19
Qiang Fu, Caterina Cocchi, Dmitrii Nabok, Andris Gulans, Claudia Draxl
The impact of graphene on the photo-absorption properties of trans- and cis-azobenzene monolayers is studied in the framework of density-functional theory and many-body perturbation theory. We find that, despite the weak hybridization between the electronic bands of graphene and those of the azobenzene monolayers, graphene remarkably modulates the absorption spectra of the adsorbates. The excitation energies are affected via two counteracting mechanisms: substrate polarization reduces the band-gap of azobenzene, and enhanced dielectric screening weakens the attractive interaction between electrons and holes...
February 22, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28229941/dual-high-resolution-inhibition-profiling-and-hplc-hrms-spe-nmr-analysis-for-identification-of-%C3%AE-glucosidase-and-radical-scavenging-inhibitors-in-solanum-americanum-mill
#20
Eder L Silva, Rita C Almeida-Lafetá, Ricardo M Borges, Dan Staerk
Solanum americanum is one of the most prominent species used to treat type 2 diabetes in Guatemala. In our ongoing efforts to find antidiabetic and antioxidative compounds from natural sources, an ethyl acetate extract of this medicinal herb was investigated using dual high-resolution α-glucosidase/radical scavenging inhibition profiling. The high-resolution biochromatograms obtained by this technique were used to target subsequent structural elucidation by HPLC-HRMS-SPE-NMR analysis towards the bioactive constituents...
February 13, 2017: Fitoterapia
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