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https://www.readbyqxmd.com/read/28938663/transcatheter-hepatic-arterial-chemoembolization-and-sorafenib-for-hepatocellular-carcinoma-a-meta-analysis-of-randomized-double-blind-controlled-trials
#1
Jun Li, Wenhui Liu, Wenhua Zhu, Yinqiao Wu, Benyan Wu
We performed a meta-analysis of transcatheter hepatic arterial chemoembolization (TACE) combined with sorafenib for hepatocellular carcinoma (HCC), which included 4 double-blind, randomized controlled trials (RCTs) that investigated the effects of TACE combined with sorafenib (experimental groups) on time to disease progression (TTP), overall survival (OS), and various sorafenib-related adverse events, compared to those in the placebo (control) groups. A total of 877 HCC cases from 14 countries, including China and the USA, were included in our meta-analysis...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938566/screening-differential-circular-rna-expression-profiles-reveals-hsa_circ_0004018-is-associated-with-hepatocellular-carcinoma
#2
Liyun Fu, Ting Yao, Qingqing Chen, Xiaoyan Mo, Yaoren Hu, Junming Guo
Circular RNAs (circRNAs) have been emerged as an indispensable part of endogenous RNA network. However, the expression significance of circRNAs in hepatocellular carcinoma (HCC) is rarely revealed. The aim of this study was to determine the circRNA expression profile in HCC, and to investigate their clinical significances and relevant mechanisms for cancer progression. The global circRNA expression profile in HCC was measured by circRNA microarray. Levels of one representative circRNAs, hsa_circ_0004018, were confirmed by real-time reverse transcription-polymerase chain reaction...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938216/efficient-removal-of-priority-hazardous-priority-and-emerging-pollutants-with-prunus-armeniaca-functionalized-biochar-from-aqueous-wastes-experimental-optimization-and-modeling
#3
Maja Turk Sekulić, Sabolč Pap, Zoran Stojanović, Nikola Bošković, Jelena Radonić, Tatjana Šolević Knudsen
This paper investigates the ability of the phosphoric acid functionalized Prunus armeniaca stones biochar (AsPhA) prepared by thermochemical activation to remove lead (Pb(2+)), cadmium (Cd(2+)), nickel (Ni(2+)), naproxen and chlorophenols from aqueous wastes. The engineered biochar was characterized using the Scanning Electron Microscopy, Energy-dispersive X-ray Spectroscopy, Fourier Transform Infrared Spectroscopy and Brunauer, Emmett and Teller technique. The batch studies were performed by varying the initial pH of the solution (2-9), adsorbent dosage (0...
September 19, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28938154/massively-parallel-sequencing-of-forensic-strs-and-snps-using-the-illumina-%C3%A2-forenseq%C3%A2-dna-signature-prep-kit-on-the-miseq-fgx%C3%A2-forensic-genomics-system
#4
Fei Guo, Jiao Yu, Lu Zhang, Jun Li
The ForenSeq™ DNA Signature Prep Kit (ForenSeq Kit) is designed to detect more than 200 forensically relevant markers in a single reaction on the MiSeq FGx™ Forensic Genomics System (MiSeq FGx System), including Amelogenin, 27 autosomal short tandem repeats (A-STRs), 7 X chromosomal STRs (X-STRs), 24 Y chromosomal STRs (Y-STRs) and 94 identity-informative single nucleotide polymorphisms (iSNPs) with the option to contain 22 phenotypic-informative SNPs (pSNPs) and 56 ancestry-informative SNPs (aSNPs). In this study, we evaluated the MiSeq FGx System on three major parts: methodological optimization (DNA extraction, sample quantification, library normalization, diluted libraries concentration, and sample-to-cell arrangement), massively parallel sequencing (MPS) performance (depth of coverage, sequence coverage ratio, and allele coverage ratio), and ForenSeq Kit characteristics (repeatability and concordance, sensitivity, mixture, stability and case-type samples)...
September 8, 2017: Forensic Science International. Genetics
https://www.readbyqxmd.com/read/28938145/six-scalemic-mixtures-of-6-monosubstituted-dihydrobenzophenanthridine-alkaloids-from-chelidonium-majus-and-optically-active-structures-of-enantiomers
#5
An-Jun Deng, Hai-Jing Zhang, Qian Li, Zhi-Hong Li, Zhi-Hui Zhang, Lian-Qiu Wu, Li Li, Hai-Lin Qin
Six pairs of previously undescribed 6-monosubstituted dihydrobenzophenanthridine alkaloids were separated as corresponding six scalemic mixtures from the aerial part of Chelidonium majus. The elucidation for the 2D structures of these alkaloids was achieved using regular spectroscopic and chemical methods. The assignment of scalemic-mixture nature was achieved using combined examinations of their NMR data, CD spectra, calculation of specific rotations, and chiral HPLC profiles. The identification for the relative configurations of alkaloids possessing two asymmetric carbons directly connected up by a rotatable sp(3)-sp(3) carbon-carbon single bond was significantly facilitated by discussing the erythro and threo relative configurations defined by the mutuality of the orders of decreasing steric hindrances between the two sets of ligands linked to the two chiral centers...
September 19, 2017: Phytochemistry
https://www.readbyqxmd.com/read/28937997/molecular-detection-of-borrelia-burgdorferi-sensu-lato-an-analytical-comparison-of-real-time-pcr-protocols-from-five-different-scandinavian-laboratories
#6
Malin Lager, Maximilian Faller, Peter Wilhelmsson, Vivian Kjelland, Åshild Andreassen, Rimtas Dargis, Hanne Quarsten, Ram Dessau, Volker Fingerle, Gabriele Margos, Sølvi Noraas, Katharina Ornstein, Ann-Cathrine Petersson, Andreas Matussek, Per-Eric Lindgren, Anna J Henningsson
INTRODUCTION: Lyme borreliosis (LB) is the most common tick transmitted disease in Europe. The diagnosis of LB today is based on the patient´s medical history, clinical presentation and laboratory findings. The laboratory diagnostics are mainly based on antibody detection, but in certain conditions molecular detection by polymerase chain reaction (PCR) may serve as a complement. AIM: The purpose of this study was to evaluate the analytical sensitivity, analytical specificity and concordance of eight different real-time PCR methods at five laboratories in Sweden, Norway and Denmark...
2017: PloS One
https://www.readbyqxmd.com/read/28937961/regulation-of-chromatin-assembly-and-cell-transformation-by-formaldehyde-exposure-in-human-cells
#7
Danqi Chen, Lei Fang, Shenglin Mei, Hongjie Li, Xia Xu, Thomas L Des Marais, Kun Lu, X Shirley Liu, Chunyuan Jin
BACKGROUND: Formaldehyde (FA) is an environmental and occupational chemical carcinogen. Recent studies have shown that exogenous FA causes only a modest increase in DNA adduct formation compared with the amount of adducts formed by endogenous FA, raising the possibility that epigenetic mechanisms may contribute to FA-mediated carcinogenicity. OBJECTIVES: We investigated the effects of FA exposure on histone modifications and chromatin assembly. We also examined the role of defective chromatin assembly in FA-mediated transcription and cell transformation...
September 21, 2017: Environmental Health Perspectives
https://www.readbyqxmd.com/read/28937850/environmental-transport-of-endogenous-dairy-manure-estrogens
#8
Inna E Popova, Matthew J Morra
Although estrogens originating from dairy manure applied to agricultural soils as a fertilizer can potentially contaminate surface water and groundwater, the variables that control transport are poorly understood. Our objective was to assess the potential for off-site movement of endogenous dairy cattle estrogens when manure is applied on fields at agronomically relevant fertilization rates. Estrone (E1), 17α-estradiol (α-E2), and 17β-estradiol (β-E2) were used in laboratory sorption, desorption, and transformation incubations with both manure and an agriculturally relevant soil...
September 22, 2017: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/28937766/approach-toward-the-understanding-of-coupling-mechanism-for-edc-reagent-in-solvent-free-mechanosynthesis
#9
Aneta Wróblewska, Piotr Paluch, Ewelina Wielgus, Grzegorz Bujacz, Marta K Dudek, Marek J Potrzebowski
A unique approach in mechanosynthesis, joining solid-state NMR spectroscopy, X-ray crystallography, and theoretical calculations, is employed for the first time to study the mechanism of the formation of the C-N amide bond using EDC·HCl as a coupling reagent. It has been proved that EDC·HCl, which in the crystal lattice exists exclusively in the cyclic form (X-ray data), easily undergoes transformation to a pseudocyclic stable intermediate in reaction with carboxylic acid forming a low-melt phase (differential scanning calorimetry, solid-state NMR)...
September 22, 2017: Organic Letters
https://www.readbyqxmd.com/read/28937737/hollow-pd-ag-composite-nanowires-for-fast-responding-and-transparent-hydrogen-sensors
#10
Ji-Soo Jang, Shaopeng Qiao, Seon-Jin Choi, Gaurav Jha, Alana F Ogata, Won-Tae Koo, Dong-Ha Kim, Il-Doo Kim, Reginald M Penner
Pd based alloy materials with hollow nanostructures are ideal hydrogen (H2) sensor building blocks because of the ultra-high surface area afforded by this architecture. In this work, for the first time, we report a simple fabrication process for preparing hollow Pd-Ag alloy nanowires (Pd@Ag HNWs) by using the electrodeposition of lithographically patterned silver nanowires and followed galvanic replacement reaction (GRR) to form palladium. By controlling the GRR time of aligned Ag NWs within an aqueous Pd2+-containing solution, the compositional transition and morphological evolution from Ag NWs to Pd@Ag HNWs simultaneously occurred, and the relative atomic ratio between Pt and Ag was controlled...
September 22, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28937636/enhanced-photocatalytic-activity-of-nabh%C3%A2-reduced-bifeo%C3%A2-nanoparticles-for-rhodamine-b-decolorization
#11
Lijing Di, Hua Yang, Tao Xian, Xiujuan Chen
In this work, oxygen vacancies were introduced onto the surface of BiFeO₃ nanoparticles by NaBH₄ reduction method to yield oxygen-deficient BiFeO3-x samples. Comprehensive analysis on the basis of high-resolution transmission electron microscopy (HRTEM) observation and X-ray photoelectron spectrum (XPS) confirms the existence of surface oxygen vacancies on the BiFeO3-x nanoparticles. The photocatalytic activity of as-prepared BiFeO3-x samples was evaluated by the decolorization of rhodamine B (RhB) under simulated sunlight irradiation...
September 22, 2017: Materials
https://www.readbyqxmd.com/read/28937606/a-novel-nanocomposite-as-an-efficient-adsorbent-for-the-rapid-adsorption-of-ni-ii-from-aqueous-solution
#12
Xiaotao Zhang, Ximing Wang, Zhangjing Chen
A sulfhydryl-lignocellulose/montmorillonite (SLT) nanocomposite was prepared using a chemical intercalation reaction. The SLT nanocomposite was characterized by Fourier Transform Infrared Spectroscopy (FTIR), X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM), and Transmission Electron Microscopy (TEM), the results demonstrated that an intercalated-exfoliated nanostructure was formed in the SLT nanocomposite. Batch experiments were conducted to optimize parameters such as SLT nanocomposite dosage, the initial concentration of Ni(II), solution pH, temperature, and time...
September 22, 2017: Materials
https://www.readbyqxmd.com/read/28937208/composition-dependent-morphology-of-bi-and-trimetallic-phosphides-construction-of-amorphous-pd-cu-ni-p-nanoparticles-as-a-selective-and-versatile-catalyst
#13
Ming Zhao, Yuan Ji, Mengyue Wang, Ning Zhong, Zinan Kang, Naoki Asao, Wen-Jie Jiang, Qiang Chen
Amorphous materials have been widely researched in heterogeneous catalysis and for next-generation batteries. However, the well-defined production of high-quality (e.g., monodisperse and high surface area) amorphous alloy nanomaterials has rarely been reported. In this work, we investigated the correlations among the composition, morphology, and catalysis of various Pd-M-P NPs (M = Cu or Ni), which indicated that less Cu (≤20 at%) was necessary for the formation of an amorphous morphology. The amorphous Pd-Cu-Ni-P NPs were fabricated with a controllable size and characterized carefully, which show excellent selective catalysis in the semi-hydrogenation of alkynes, hydrogenation of quinoline, and oxidation of primary alcohols...
September 22, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28937171/unprecedented-family-of-heterometallic-ln-iii-18-metallacrown-6-complexes-syntheses-structures-and-magnetic-properties
#14
Wei Yang, Hua Yang, Su-Yuan Zeng, Da-Cheng Li, Jian-Min Dou
Herein, a new family of Ln(III)[18-metallacrown-6] compounds with the formula [Fe6O2Ln(tBu-sao)6(OH)(MeO)4(MeOH)(H2O)]·6MeOH [Ln = Dy(III) (1), Tb(III) (2), Gd(III) (3), and Y(III) (4), tBu-saoH2 = 3,5-di-tert-butylsalicylaldoxime] was synthesized through one-pot reactions using tBu-saoH2, Fe(ClO4)3·6H2O, and Ln(NO3)3·6H2O. The four compounds are isostructural, and the encapsulation of a Ln ion in the ring cavity of 18-metallacrown-6 (18-MC-6) was exhibited for the first time. The structural analysis shows a ship-like 18-MC-6 core with a beset lanthanide ion connecting six ring oxygen atoms (OMC)...
September 22, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28936961/-effects-of-small-rna-interference-targeting-mammalian-target-of-rapamycin-on-paraquat-induced-pulmonary-fibrosis-in-rats
#15
Wenbin Yang, Xiaoqing Zhao, Ran Liang, Da Chen
OBJECTIVE: To investigate the effects of small RNA interference targeting mammalian target of rapamycin (mTOR) expression on paraquat-induced pulmonary fibrosis in rats. METHODS: Human embryonic kidney cells HEK-293 were cultured in vitro. The mTOR small interfering RNA (mTOR-siRNA) expression plasmid transfection lentivirus was constructed, and non-specific sequence plasmid with no homology to mTOR gene was set as the control. Seventy-two healthy male Sprague-Dawley (SD) rats were randomly divided into normal saline (NS) control group, paraquat model group, mTOR unrelated sequence group, and mTOR-siRNA group, with 18 rats in each group...
September 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28936921/osteopontin-c-isoform-levels-are-associated-with-sr-and-hnrnp-differential-expression-in-ovarian-cancer-cell-lines
#16
Durval Santos Marques, Jessica Grativol, Rodrigo Alves da Silva Peres, Aline da Rocha Matos, Etel Rodrigues Pereira Gimba
Osteopontin-c splicing isoform activates ovarian cancer progression features. Imbalanced expression of splicing factors from serine/arginine -rich and heterogeneous ribonucleoproteins families has been correlated with the generation of oncogenic splicing isoforms. Our goal was to investigate whether there is any association between the transcriptional patterns of these splicing factors in ovarian cells and osteopontin-c expression levels. We also aimed to investigate the occurrence of these splicing factors binding sites inside osteopontin exon 4 and adjacent introns...
September 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28936850/-protective-effects-of-schizonepeta-volatile-oil-on-endotoxin-poisoning-induced-by-lipopolysaccharide-in-mice
#17
Tao-Qun Wen, Wen-Tao Sang, Feng Xu, Feng Wang, Nan Zeng
In order to study the protective effects of Schizonepeta volatile oil (Sto)on endotoxin poisoning mice, and the relatively content of each chemical osubstance in Schizonepeta volatile oil was measured using GC-MS. The mare C57BL/6J mice were randomly divided into five groups including the normal group, model group, dexamethasone group (5 mg•kg⁻¹), and Sto (0.226 and 0.452 g•kg⁻¹, respectively) groups. The dexamethasone group was given the drugs once time by intraperitoneal injection on the 5th day, while the other mice were given drugs by oral administration once a day for 5 days...
December 2016: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28936604/production-partial-optimization-and-characterization-of-keratinase-enzyme-by-arthrobacter-sp-nfh5-isolated-from-soil-samples
#18
Nirmal Chandra Barman, Fatema Tuj Zohora, Keshob Chandra Das, Md Golam Mowla, Nilufa Akhter Banu, Md Salimullah, Abu Hashem
The study was conducted to select the best promising keratinolytic bacterial strain. A good keratinase positive bacterium isolated from the soil samples of Hazaribagh tannery industrial zone, Dhaka was identified as Arthrobacter genus depending on the conventional techniques and confirmed as Arthrobacter sp. by sequencing 16S rRNA gene. The medium components and culture conditions were optimized to enhance keratinase production through shake flask culture. Keratin and feather powder (10 g/l or 1%) were good substrates for the highest keratinase production along with yeast extract (0...
September 21, 2017: AMB Express
https://www.readbyqxmd.com/read/28936494/detection-of-intracranial-hypertension-using-deep-learning
#19
Benjamin Quachtran, Robert Hamilton, Fabien Scalzo
Intracranial Hypertension, a disorder characterized by elevated pressure in the brain, is typically monitored in neurointensive care and diagnosed only after elevation has occurred. This reaction-based method of treatment leaves patients at higher risk of additional complications in case of misdetection. The detection of intracranial hypertension has been the subject of many recent studies in an attempt to accurately characterize the causes of hypertension, specifically examining waveform morphology. We investigate the use of Deep Learning, a hierarchical form of machine learning, to model the relationship between hypertension and waveform morphology, giving us the ability to accurately detect presence hypertension...
December 2016: Proceedings of the ... IAPR International Conference on Pattern Recognition
https://www.readbyqxmd.com/read/28936358/characteristics-of-occupational-musculoskeletal-disorders-of-five-sectors-in-service-industry-between-2004-and-2013
#20
Hyun-Woo Choi, Young-Ki Kim, Dong-Mug Kang, Jong-Eun Kim, Bo-Young Jang
BACKGROUND: 'Work related musculoskeletal disorders (WRMSDs)' have been mostly reported in the manufacturing industry but recently the occurrence of industrial injuries has been constantly increasing in the service industry. This research is going to analyze the data about workers' compensation for WRMSDs in five different service sectors and identify characteristics of occupations with the highest approved occupations. METHODS: According to the data released from the Korea Worker's Compensation & Welfare Service, the overview of 12,730 cases of workers' compensation for WRMSDs in five service sectors from 2004 to 2013 is going to be analyzed and the source data is going to be classified by the Korean Standard Classification of Occupations to select the top five occupations that have the highest number of approval...
2017: Annals of Occupational and Environmental Medicine
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