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https://www.readbyqxmd.com/read/27920904/crystal-structures-of-two-ytterbium-iii-complexes-comprising-alkynylamidinate-ligands
#1
Sida Wang, Farid M Sroor, Phil Liebing, Volker Lorenz, Liane Hilfert, Frank T Edelmann
Two ytterbium(III) complexes comprising alkynylamidinate ligands, namely bis-(η(5)-cyclo-penta-dien-yl)(3-cyclo-propyl-N,N'-diiso-propyl-propynamidinato-κ(2)N,N')ytterbium(III), [Yb(C5H5)2(C12H19N2)] or Cp2Yb[( (i) Pr2N)2C-C≡C-c-C3H5] (1) and tris-(3-phenyl-N,N'-di-cyclo-hexyl-propynamidinato-κ(2)N,N')ytterbium(III), [Yb(C21H27N2)3] or Yb[(CyN)2C-C≡C-Ph]3 (Cy = cyclo-hex-yl) (2) have been synthesized and structurally characterized. Both complexes are monomers; for complex 2, the contribution to the scattering from highly disordered toluene solvent molecules in these voids was removed with the SQUEEZE routine [Spek (2015)...
September 1, 2016: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/27902748/features-of-the-asynchronous-correlation-between-the-china-coal-price-index-and-coal-mining-accidental-deaths
#2
Yuecheng Huang, Wuyi Cheng, Sida Luo, Yun Luo, Chengchen Ma, Tailin He
The features of the asynchronous correlation between accident indices and the factors that influence accidents can provide an effective reference for warnings of coal mining accidents. However, what are the features of this correlation? To answer this question, data from the China coal price index and the number of deaths from coal mining accidents were selected as the sample data. The fluctuation modes of the asynchronous correlation between the two data sets were defined according to the asynchronous correlation coefficients, symbolization, and sliding windows...
2016: PloS One
https://www.readbyqxmd.com/read/27894214/quantitation-using-a-stable-isotope-dilution-assay-sida-and-thresholds-of-taste-active-pyroglutamyl-decapeptide-ethyl-esters-pgdpes-in-sake
#3
Katsumi Hashizume, Toshiko Ito, Shinya Igarashi
A stable isotope dilution assay (SIDA) for two taste-active pyroglutamyl decapeptide ethyl esters (PGDPE1; (pGlu)LFGPNVNPWCOOC2H5, PGDPE2; (pGlu)LFNPSTNPWCOOC2H5) in sake was developed using deuterated isotopes and high-resolution mass spectrometry. Recognition thresholds of PGDPEs in sake were estimated as 3.8 μg/L for PGDPE1 and 8.1 μg/L for PGDPE2, evaluated using 11 student panelists aged in their twenties. Quantitated concentrations in 18 commercial sake samples ranged from 0 to 27 μg/L for PGDPE1 and from 0 to 202 μg/L for PGDPE2...
November 29, 2016: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/27878500/anti-inflammatory-and-antioxidant-effect-of-kerabala-a-value-added-ayurvedic-formulation-from-virgin-coconut-oil-inhibits-pathogenesis-in-adjuvant-induced-arthritis
#4
M Ratheesh, S Sandya, C Pramod, S Asha, Jose P Svenia, S Premlal, B GrishKumar
Kerabala (CB) is a novel ayurvedic formulation used for treating various inflammatory diseases. This formulation was made from virgin coconut oil and it comprises extracts of Sida cordifolia, coconut milk and sesame oil. The current study was performed to evaluate the anti-inflammatory action of CB on carrageenan-induced acute and adjuvant-induced chronic experimental models. 5 mg/kg bwt was found to be potent dose from carrageenan model and evaluated its effect in adjuvant-induced chronic arthritic model...
November 22, 2016: Inflammopharmacology
https://www.readbyqxmd.com/read/27825130/genetic-variants-in-tert-are-associated-with-risk-of-gastric-cancer-in-a-chinese-han-population
#5
Xianglong Duan, Wei Cao, Lijie Wang, Sida Liu, Zhao Liu, Bolun Zhang, Hua Yang, Tian Feng, Jiayi Zhang, Xiyang Zhang, Yanbin Long, Tianbo Jin
Telomerase reverse transcriptase (TERT) is a gene within the cancer susceptibility region located at Chr5p15.33, which is associated with multiple cancer types. In this study, we validated the association between TERT polymorphisms and gastric cancer (GC) risk with a case-control study in a Chinese Han population. A total of 302 GC patients and 300 control individuals were recruited. We identified three single nucleotide polymorphisms (SNPs) in TERT that were associated with GC. Odds ratios (ORs) and 95% confidence intervals (CIs) were calculated in logistic regression models after adjusting for age and gender to assess the association...
November 4, 2016: Oncotarget
https://www.readbyqxmd.com/read/27788585/influence-of-the-production-process-on-the-key-aroma-compounds-of-rum-from-molasses-to-the-spirit
#6
Laura Franitza, Michael Granvogl, Peter Schieberle
The production of rum consists of fermentation, distillation, and ageing. To check the influence of each step on the final rum aroma, molasses, mash, distillate, and the final rum were analyzed using the sensomics concept. The changes in key aroma compounds were determined by application of aroma extract dilution analysis (AEDA) in combination with gas chromatography-mass spectrometry for identification and by stable isotope dilution assays (SIDAs) for quantitation. Odor activity values (OAVs; ratio of concentration to respective odor threshold) were calculated for the compounds determined in the rum and, finally, the rum aroma was successfully simulated by recombination...
October 27, 2016: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/27773665/pulmonary-effects-of-immediate-versus-deferred-antiretroviral-therapy-in-hiv-positive-individuals-a-nested-substudy-within-the-multicentre-international-randomised-controlled-strategic-timing-of-antiretroviral-treatment-start-trial
#7
Ken M Kunisaki, Dennis E Niewoehner, Gary Collins, Bitten Aagaard, Nafisah B Atako, Elzbieta Bakowska, Amanda Clarke, Giulio Maria Corbelli, Ernest Ekong, Sean Emery, Elizabeth B Finley, Eric Florence, Rosa M Infante, Cissy M Kityo, Juan Sierra Madero, Daniel E Nixon, Ellen Tedaldi, Jørgen Vestbo, Robin Wood, John E Connett
BACKGROUND: Observational data have been conflicted regarding the potential role of HIV antiretroviral therapy (ART) as a causative factor for, or protective factor against, COPD. We therefore aimed to investigate the effect of immediate versus deferred ART on decline in lung function in HIV-positive individuals. METHODS: We did a nested substudy within the randomised, controlled Strategic Timing of Antiretroviral Treatment (START) trial at 80 sites in multiple settings in 20 high-income and low-to-middle-income countries...
October 20, 2016: Lancet Respiratory Medicine
https://www.readbyqxmd.com/read/27773513/-diagnostic-and-therapeutic-recommendations-for-sexually-transmissible-diseases
#8
M Janier
No abstract text is available yet for this article.
October 20, 2016: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/27760351/capturing-invisible-motions-in-the-transition-from-ground-to-rare-excited-states-of-t4-lysozyme-l99a
#9
Jamie M Schiffer, Victoria A Feher, Robert D Malmstrom, Roxana Sida, Rommie E Amaro
Proteins commonly sample a number of conformational states to carry out their biological function, often requiring transitions from the ground state to higher-energy states. Characterizing the mechanisms that guide these transitions at the atomic level promises to impact our understanding of functional protein dynamics and energy landscapes. The leucine-99-to-alanine (L99A) mutant of T4 lysozyme is a model system that has an experimentally well characterized excited sparsely populated state as well as a ground state...
October 18, 2016: Biophysical Journal
https://www.readbyqxmd.com/read/27737687/lcl161-increases-paclitaxel-induced-apoptosis-by-degrading-ciap1-and-ciap2-in-nsclc
#10
Chengcheng Yang, Huangzhen Wang, Boxiang Zhang, Yimeng Chen, Yamin Zhang, Xin Sun, Guodong Xiao, Kejun Nan, Hong Ren, Sida Qin
BACKGROUND: LCL161, a novel Smac mimetic, is known to have anti-tumor activity and improve chemosensitivity in various cancers. However, the function and mechanisms of the combination of LCL161 and paclitaxel in non-small cell lung cancer (NSCLC) remain unknown. METHODS: Cellular inhibitor of apoptotic protein 1 and 2 (cIAP1&2) expression in NSCLC tissues and adjacent non-tumor tissues were assessed by immunohistochemistry. The correlations between cIAP1&2 expression and clinicopathological characteristics, prognosis were analyzed...
September 30, 2016: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/27731376/new-potential-beneficial-effects-of-actein-a-triterpene-glycoside-isolated-from-cimicifuga-species-in-breast-cancer-treatment
#11
Grace Gar-Lee Yue, Sida Xie, Julia Kin-Ming Lee, Hin-Fai Kwok, Si Gao, Yin Nian, Xiao-Xiao Wu, Chun-Kwok Wong, Ming-Hua Qiu, Clara Bik-San Lau
Actein is a triterpene glycoside isolated from the rhizomes of Cimicifuga foetida (Chinese herb "shengma") which could inhibit the growth of breast cancer cells. Nevertheless, the effect of actein on angiogenesis, which is an essential step for tumor growth and metastasis, has never been reported. Hence, this study aimed to investigate the in vitro and in vivo effects of actein on angiogenesis using human microvascular endothelial cells (HMEC-1), matrigel plug and tumor-bearing mouse models. Our results showed that actein significantly inhibited the proliferation, reduced the migration and motility of endothelial cells, and it could suppress the protein expressions of VEGFR1, pJNK and pERK, suggesting that JNK/ERK pathways were involved...
October 12, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27728970/characterization-of-the-key-aroma-compounds-in-raw-licorice-glycyrrhiza-glabra-l-by-means-of-molecular-sensory-science
#12
Juliane Wagner, Michael Granvogl, Peter Schieberle
Application of the molecular sensory science concept including aroma extract dilution analysis (AEDA) on the basis of gas chromatography-olfactometry combined with gas chromatography-mass spectrometry elucidated the key odorants of raw licorice (Glycyrrhiza glabra L.). Fifty aroma-active compounds were located via AEDA, 16 thereof were identified in raw licorice for the first time. γ-Nonalactone, 4-hydroxy-2,5-dimethylfuran-3(2H)-one, and 4-hydroxy-3-methoxybenzaldehyde showed the highest flavor dilution (FD) factor of 1024...
October 11, 2016: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/27718551/paired-design-of-dcas9-as-a-systematic-platform-for-the-detection-of-featured-nucleic-acid-sequences-in-pathogenic-strains
#13
Yihao Zhang, Long Qian, Weijia Wei, Yu Wang, Beining Wang, Pingping Lin, Wenchao Liu, Luze Xu, Xiang Li, Dongming Liu, Sida Cheng, Jiaofeng Li, Yixuan Ye, Hang Li, Xiaohan Zhang, Yiming Dong, Xuejin Zhao, Cuihua Liu, Haoqian M Zhang, Qi Ouyang, Chunbo Lou
We developed an in vitro DNA detection system using a pair of dCas9 proteins linked to split halves of luciferase. Luminescence was induced upon co-localization of the reporter pair to a ~44 bp target sequence defined by sgRNAs. We used the system to detect Mycobacterium tuberculosis DNA with high specificity and sensitivity. The re-programmability of dCas9 was further leveraged in an array design that accesses sequence information across the entire genome.
October 10, 2016: ACS Synthetic Biology
https://www.readbyqxmd.com/read/27715477/translation-and-validation-of-the-chinese-versions-of-the-suicidal-ideation-attributes-scale-stigma-of-suicide-scale-and-literacy-of-suicide-scale
#14
Jin Han, Philip J Batterham, Alison L Calear, Yang Wu, Yiyun Shou, Bregje A J van Spijker
This paper reports the validation of the Chinese versions of the Suicidal Ideation Attributes Scale (SIDAS), Stigma of Suicide Scale (short form, SOSS), and Literacy of Suicide Scale (short form, LOSS) among 57 Chinese and English bilinguals and 224 Chinese university students. All the translated scales showed high correlations with the original versions. The translated SIDAS and refined SOSS demonstrated robust factor structures, good internal consistency and convergent validity. Chinese students with self-reported depression symptoms tended to have higher glorification of suicide and lower suicide literacy...
August 11, 2016: Death Studies
https://www.readbyqxmd.com/read/27712066/characterization-of-key-odorants-causing-a-fusty-musty-off-flavor-in-native-cold-pressed-rapeseed-oil-by-means-of-the-sensomics-approach
#15
Katrin Matheis, Michael Granvogl
The sensomics approach was used to clarify the formation of the fusty/musty off-flavor of native cold-pressed rapeseed oil. A "positive control" (PC) showing the desired sensory attributes and an oil eliciting a fusty/musty off-flavor (OF) were analyzed. Comparative aroma extract dilution analysis (cAEDA), identification experiments, quantitation by stable isotope dilution assays (SIDAs), calculation of odor activity values (OAVs), and aroma recombination resulted in 11 odorants with an OAV ≥ 1 in PC. Main differences between both oils were obtained for compounds caused by microbial influence revealing significant higher concentrations in OF, e...
October 7, 2016: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/27694084/prevalence-of-helicobacter-pylori-prevalence-and-upper-gastrointestinal-endoscopy-in-hiv-aids-patients-with-gastrointestinal-symptoms-in-the-university-teaching-hospitals-in-cameroon
#16
F A Andoulo, M Kowo, G Ngatcha, A N Ndam, B Awouoyiegnigni, M B Sida, C Tzeuton, E C Ndjitoyap Ndam
OBJECTIVE: To determine the prevalence of Helicobacter pylori (H. pylori) infection and of various upper gastrointestinal (GI) lesions in HIV(+) patients with GI symptoms and the relation of H. pylori infection to CD4 cell counts. MATERIAL AND METHODS: In all, 56 HIV(+) patients and 56 age- and sex-matched HIV(-) controls, all with upper GI symptoms, were evaluated by an upper endoscopy examination and gastric biopsy. H. pylori status was assessed with a urease test and histology...
August 1, 2016: Médecine et Santé Tropicales
https://www.readbyqxmd.com/read/27693767/intracranial-facial-nerve-schwannomas-current-management-and-review-of-the-literature
#17
Feng Xu, Sida Pan, Nicholas C Bambakidis
Facial nerve schwannomas are rare, benign, nerve-sheath tumors. They can occur in any segment of the facial nerve, and often clinically and radiographically mimic the most common vestibular schwannoma when extending into the cerebellopontine angle. The optimal treatment strategy for intracranial facial nerve schwannomas remains controversial and includes observation, resection, and stereotactic radiosurgery. In this article, we review the natural history, clinical features, diagnosis and current management of facial nerve schwannomas...
September 28, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27692648/development-of-stable-isotope-dilution-assays-for-the-quantitation-of-intra-and-extracellular-folate-patterns-of-bifidobacterium-adolescentis
#18
Markus Kopp, Kerstin Dürr, Matthias Steigleder, Thomas Clavel, Michael Rychlik
Folate-producing bifidobacteria have been studied extensively but appropriate methods for detailed quantitation of intra- and extracellular pteroylmono- and pteroylpolyglutamate patterns are lacking. Therefore, B. adolescentis DSM 20083(T) was cultivated in folate-free medium (FFM) for 24h to develop and validate stable isotope dilution assays (SIDAs) coupled with LC-MS/MS for the determination of 5-formyltetrahydrofolic acid (5-HCO-H4folate), 10-formylfolic acid (10-HCO-PteGlu), tetrahydrofolic acid (H4folate), folic acid (PteGlu) and 5-methyltetrahydrofolic acid (5-CH3-H4folate) including its di-, tri-, and tetraglutamic vitamers (5-CH3-H4PteGlu2-4)...
October 21, 2016: Journal of Chromatography. A
https://www.readbyqxmd.com/read/27691940/poisoning-by-the-swainsonine-containing-plant-sida-carpinifolia-in-captive-sambar-deer-cervus-unicolor
#19
Bruno L Anjos, Paulo V Peixoto, Saulo A Caldas, Daniel Bhaltazar, Ticiana N França, Aníbal G Armién
Plant intoxications in wildlife are difficult to diagnose, are overlooked, or are sometimes even neglected. Hence, factors that induce wild animals to ingest poisonous plants have not been sufficiently documented. An outbreak of glycoprotein storage disease in sambar deer ( Cervus unicolor ), induced by ingestion of the swainsonine-containing plant, common wireweed (Sida carpinifolia), is reported. Nine out of 55 deer held by a zoo in Brazil were affected. The poisoning was characterized by emaciation and neurologic signs followed by unexpected death in some of the animals...
September 2016: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/27690424/elucidation-of-thermal-induced-changes-in-key-odorants-of-white-mustard-seeds-sinapis-alba-l-and-rapeseeds-brassica-napus-l-using-molecular-sensory-science
#20
Eva Ortner, Michael Granvogl, Peter Schieberle
Heat-processing of Brassica seeds led to the formation of a characteristic pleasant popcorn-like and coffee-like aroma impression compared to the mainly pea-like aroma of the corresponding raw seeds. To analyze this phenomenon on a molecular basis, raw and roasted white mustard seeds and rapeseeds were analyzed using the Sensomics approach. Application of comparative aroma extract dilution analysis (cAEDA) and identification experiments to raw and roasted (140 °C, 30 min) mustard seeds revealed 36 odorants (all identified for the first time) and 47 odorants (41 newly identified), respectively...
October 3, 2016: Journal of Agricultural and Food Chemistry
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