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https://www.readbyqxmd.com/read/29052129/hepatitis-b-virus-associated-hepatocellular-carcinoma
#1
Youhua Xie
Liver cancer is the fifth most common cancer worldwide in men and the ninth in women. It is also the second most common cause of cancer mortality. Hepatocellular carcinoma (HCC) is the most common type of liver cancer. About 350 million people globally are chronically infected with HBV. Chronic hepatitis B virus (HBV) infection accounts for at least 50% cases of HCC worldwide. Other non-HBV factors may increase HCC risk among persons with chronic HBV infection. Both indirect and direct mechanisms are involved in HCC oncogenesis by HBV...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29051861/additive-manufacturing-unlocking-the-evolution-of-energy-materials
#2
REVIEW
Adilet Zhakeyev, Panfeng Wang, Li Zhang, Wenmiao Shu, Huizhi Wang, Jin Xuan
The global energy infrastructure is undergoing a drastic transformation towards renewable energy, posing huge challenges on the energy materials research, development and manufacturing. Additive manufacturing has shown its promise to change the way how future energy system can be designed and delivered. It offers capability in manufacturing complex 3D structures, with near-complete design freedom and high sustainability due to minimal use of materials and toxic chemicals. Recent literatures have reported that additive manufacturing could unlock the evolution of energy materials and chemistries with unprecedented performance in the way that could never be achieved by conventional manufacturing techniques...
October 2017: Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
https://www.readbyqxmd.com/read/29049968/a-novel-eulerian-approach-for-modelling-cyanobacteria-movement-thin-layer-formation-and-recurrent-risk-to-drinking-water-intakes
#3
Mouhamed Ndong, David Bird, Tri Nguyen Quang, René Kahawita, David Hamilton, Marie Laure de Boutray, Michèle Prévost, Sarah Dorner
Toxic cyanobacteria (CB) blooms are being reported in an increasing number of water bodies worldwide. As drinking water (DW) treatment can be disrupted by CB, in addition to long term management plans, short term operational decision-making tools are needed that enable an understanding of the temporal variability of CB movement in relation to drinking water intakes. In this paper, we propose a novel conservative model based on a Eulerian framework and compare results with data from CB blooms in Missisquoi Bay (Québec, Canada)...
October 10, 2017: Water Research
https://www.readbyqxmd.com/read/29048935/chimeric-antigen-receptor-t-cell-therapy-for-solid-tumors-require-new-clinical-regimens
#4
Jinjing Xu, Kang Tian, Haixu Zhang, Liantao Li, Hongyan Liu, Jingjie Liu, Qing Zhang, Junnian Zheng
Chimeric antigen receptor modified T cell (CAR-T) therapy has achieved encouraging breakthroughs in the treatment of hematological malignancies. Nevertheless, this success has not yet been extrapolated to solid tumors. This review focuses on new clinical regimens that could improve the therapeutic efficacy of CAR-T in solid tumors. Areas covered: Herein, the authors reviewed recent clinical trials using CAR-T therapies for the treatment of solid tumors. Specifically, this review covered the following areas: (1) the current status of CAR-T cells in the treatment of solid tumors; (2) the major factors constraining the efficacy of CAR-T cells in solid tumors; and (3) opinions regarding the future of CAR-T as a treatment for solid tumors...
October 19, 2017: Expert Review of Anticancer Therapy
https://www.readbyqxmd.com/read/29047107/hybrid-organic-inorganic-ch3-nh3-pbi3-perovskite-building-blocks-revealing-ultra-strong-hydrogen-bonding-and-mulliken-inner-complexes-and-their-implications-in-materials-design
#5
Arpita Varadwaj, Pradeep R Varadwaj, Koichi Yamashita
Methylammonium lead iodide (CH3 NH3 PbI3 ) perovskite compound has produced a remarkable breakthrough in the photovoltaic history of solar cell technology because of its outstanding device-based performance as a light-harvesting semiconductor. Whereas the experimental and theoretical studies of this system in the solid state have been numerously reported in the last 4 years, its fundamental cluster physics is yet to be exploited. To this end, this study has performed theoretical investigations using DFT-M06-2X/ADZP to examine the principal geometrical, electronic, topological, and orbital properties of the CH3 NH3 PbI3 molecular building block...
October 18, 2017: Journal of Computational Chemistry
https://www.readbyqxmd.com/read/29046597/ultrasound-tomography-imaging-with-waveform-sound-speed-parenchymal-changes-in-women-undergoing-tamoxifen-therapy
#6
Mark Sak, Neb Duric, Peter Littrup, Mark Sherman, Gretchen Gierach
Ultrasound tomography (UST) is an emerging modality that can offer quantitative measurements of breast density. Recent breakthroughs in UST image reconstruction involve the use of a waveform reconstruction as opposed to a ray-based reconstruction. The sound speed (SS) images that are created using the waveform reconstruction have a much higher image quality. These waveform images offer improved resolution and contrasts between regions of dense and fatty tissues. As part of a study that was designed to assess breast density changes using UST sound speed imaging among women undergoing tamoxifen therapy, UST waveform sound speed images were then reconstructed for a subset of participants...
March 2017: Proceedings of SPIE
https://www.readbyqxmd.com/read/29045731/the-chimpanzee-model-of-viral-hepatitis-advances-in-understanding-the-immune-response-and-treatment-of-viral-hepatitis
#7
Robert E Lanford, Christopher M Walker, Stanley M Lemon
Chimpanzees (Pan troglodytes) have contributed to diverse fields of biomedical research due to their close genetic relationship to humans and in many instances due to the lack of any other animal model. This review focuses on the contributions of the chimpanzee model to research on hepatitis viruses where chimpanzees represented the only animal model (hepatitis B and C) or the most appropriate animal model (hepatitis A). Research with chimpanzees led to the development of vaccines for HAV and HBV that are used worldwide to protect hundreds of millions from these diseases and, where fully implemented, have provided immunity for entire generations...
October 17, 2017: ILAR Journal
https://www.readbyqxmd.com/read/29045631/implementation-of-advance-care-planning-in-israel-a-convergence-of-top-down-and-bottom-up-processes
#8
Netta Bentur, Shelley Sternberg
Although public health has traditionally been concerned with primary, secondary, and tertiary prevention, more attention needs to be focused on patient-centered care at the end of life. Improved access to quality end-of-life care can be achieved by advance care planning (ACP). In this article, we present an example of the processes of change regarding ACP and preparing advance directives (ADs) that have begun to take place in Israel in recent years. We argue that these processes derive from the synergy between legislation on the one hand, and initiatives and action by health organizations on the other...
October 13, 2017: Gerontologist
https://www.readbyqxmd.com/read/29043605/liquid-nanosize-emulsion-filled-enteric-coated-capsules-for-colon-delivery-of-immunosuppressant-peptide
#9
Sumit Sharma, Vivek Ranjan Sinha
Present study aims at solubilizing slightly water-soluble peptide into a nanosize emulsion which is filled into a hard gelatin capsule in the form of preconcentrate. Further, liquid-filled capsule was dip-coated with ethyl cellulose and Eudragit S100 for colon targeting. An in vitro release profile was studied for selected formulations, i.e., Formulation A (5 mg ethyl cellulose and 40 mg Eudragit S100), Formulation B (10 mg ethyl cellulose and 30 mg Eudragit S100), and Formulation C (10 mg ethyl cellulose and 20 mg Eudragit S100)...
October 17, 2017: AAPS PharmSciTech
https://www.readbyqxmd.com/read/29043590/adsorption-and-desorption-for-dynamics-transport-of-hexavalent-chromium-cr-vi-in-soil-column
#10
Xiaowei Zhang, Juxiu Tong, Bill X Hu, Wenshuo Wei
Batch experiments have been carried out to study the adsorption of heavy metals in soils, and the migration and transformation of hexavalent chromium (Cr(VI)) in the soil of a vegetable base were studied by dynamic adsorption and desorption soil column experiments. The aim of this study was to investigate the effect of initial concentration and pH value on the adsorption process of Cr(VI). Breakthrough curve were used to evaluate the capacity of Cr(VI) adsorption in soil columns. The results show that the higher the initial concentration, the worse the adsorption capacity of Cr(VI)...
October 18, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29043014/an-open-label-study-to-evaluate-the-long-term-safety-and-efficacy-of-lanadelumab-for-prevention-of-attacks-in-hereditary-angioedema-design-of-the-help-study-extension
#11
Marc A Riedl, Jonathan A Bernstein, Timothy Craig, Aleena Banerji, Markus Magerl, Marco Cicardi, Hilary J Longhurst, Mustafa M Shennak, William H Yang, Jennifer Schranz, Jovanna Baptista, Paula J Busse
BACKGROUND: Hereditary angioedema (HAE) is characterized by recurrent attacks of subcutaneous or submucosal edema. Attacks are unpredictable, debilitating, and have a significant impact on quality of life. Patients may be prescribed prophylactic therapy to prevent angioedema attacks. Current prophylactic treatments may be difficult to administer (i.e., intravenously), require frequent administrations or are not well tolerated, and breakthrough attacks may still occur frequently. Lanadelumab is a subcutaneously-administered monoclonal antibody inhibitor of plasma kallikrein in clinical development for prophylaxis of hereditary angioedema attacks...
2017: Clinical and Translational Allergy
https://www.readbyqxmd.com/read/29041543/filamentary-plasma-grating-induced-by-interference-of-two-femtosecond-laser-pulses-in-water
#12
Fengjiang Liu, Shuai Yuan, Boqu He, Junyi Nan, Mengci Jiang, Abdul Qayyum Khan, Liang'en Ding, Jiaxin Yu, Heping Zeng
We present direct observation of filamentary plasma grating induced by interference between two noncollinear infrared femtosecond pulses in water by doping with gold nanoparticles. The gold nanoparticles act as scattering media in water and visualize the fine structure of local optical fields of plasma grating. By measuring the variation of local conductivity as laser undergoes filamentation in water, the generated electron density in water is qualitatively studied. Significant enhancement of local electron density is observed at the intersecting region as two laser beams form plasma grating, indicating the breakthrough of clamped intensity of a conventional filament in water...
September 18, 2017: Optics Express
https://www.readbyqxmd.com/read/29040845/in-situ-regeneration-of-activated-carbon-with-electric-potential-swing-desorption-epsd-for-the-h2s-removal-from-biogas
#13
M Farooq, M N Almustapha, M Imran, M A Saeed, John M Andresen
In-situ regeneration of a granular activated carbon was conducted for the first time using electric potential swing desorption (EPSD) with potentials up to 30 V. The EPSD system was compared against a standard non-potential system using a fixed-bed reactor with a bed of 10 g of activated carbon treating a gas mixture with 10,000 ppm H2S. Breakthrough times, adsorption desorption volume, capacities, effect of regeneration and desorption kinetics were investigated. The analysis showed that desorption of H2S using the new EPSD system was 3 times quicker compared with the no potential system...
October 4, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29040381/the-cug-translated-wt1-not-aug-wt1-is-an-oncogene
#14
Kun Yeong Lee, Young Jin Jeon, Hong Gyum Kim, Joohyun Ryu, Do Young Lim, Sung Keun Jung, Dong Hoon Yu, Hanyong Chen, Ann M Bode, Zigang Dong
The Wilms' tumor 1 (WT1) gene is believed to act as a canonical tumor suppressor. However, it has also been reported to function as an oncogene. Germline WT1 deletion is associated with Wilms' tumor and exogenous WT1 cDNA introduction into cells induces the transcriptional suppression of its oncogenic target genes. In contrast, high WT1 expression is associated with poor prognosis in patients with various cancers. Why WT1 acts as a tumor suppressor under certain conditions, but as an oncogene under other conditions is unknown...
October 10, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/29038906/pcsk9-mutations-in-familial-hypercholesterolemia-from-a-groundbreaking-discovery-to-anti-pcsk9-therapies
#15
REVIEW
Petra El Khoury, Sandy Elbitar, Youmna Ghaleb, Yara Abou Khalil, Mathilde Varret, Catherine Boileau, Marianne Abifadel
PURPOSE OF REVIEW: In 2003, Abifadel et al. (Nat. Genet. 34:154-156, 2003) identified PCSK9, encoding proprotein convertase subtilisin/kexin type 9, as the third causal gene for autosomal dominant hypercholesterolemia. This review focuses on the main steps from this major breakthrough in familial hypercholesterolemia (FH) to the latest clinical trials with the anti-PCSK9 antibodies. RECENT FINDINGS: The year 2015 was remarkable in cardiovascular disease through the field of cholesterol...
October 17, 2017: Current Atherosclerosis Reports
https://www.readbyqxmd.com/read/29038876/complications-and-retrieval-data-of-vena-cava-filters-based-on-specific-infrarenal-location
#16
Thomas G Tullius, Aaron S Bos, Mikin V Patel, Brian Funaki, Thuong G Van Ha
PURPOSE: Although recommended placement of IVC filters is with their tips positioned at the level of the renal vein inflow, in practice, adherence is limited due to clinical situation or IVC anatomy. We seek to evaluate the indwelling and retrieval complications of IVC filters based on their specific position within the infrarenal IVC. MATERIALS AND METHODS: Retrospective, single institution study of 333 consecutive infrarenal vena cava filters placed by interventional radiologists in patients with an average age of 62...
October 16, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/29037806/parp-inhibitors-clinical-utility-and-possibilities-of-overcoming-resistance
#17
REVIEW
Benjamin G Bitler, Zachary L Watson, Lindsay J Wheeler, Kian Behbakht
PARP inhibitors represent a major breakthrough in ovarian cancer care. Almost half of all ovarian cancers have deficiencies in the homologous recombination (HR) DNA repair pathway, namely BRCA1/2 mutations. Given the limited therapeutic options for recurrent ovarian cancer patients there has been a significant effort to develop novel therapies to exploit DNA repair deficiencies. In 2005 and 2006, inhibiting PARP enzymes was first observed to be highly effective against cancers with HR deficiencies. PARP inhibitors are being utilized in the clinic to manage recurrent ovarian cancers that display defects in the HR repair pathway...
October 13, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/29037595/cellular-characterization-of-optical-coherence-tomography-and-outer-retinal-bands-using-specific-immunohistochemistry-markers-and-clinical-implications
#18
Nicolás Cuenca, Isabel Ortuño-Lizarán, Isabel Pinilla
PURPOSE: Optical coherence tomography has been a technological breakthrough in the diagnosis, treatment, and follow-up of many ocular diseases, especially retinal and neuro-ophthalmologic pathologic conditions. Until now, several controversies have arisen over the specific cell types that the bands observed in the OCT represent, especially over the 4 outer retinal bands. DESIGN: To correlate the 4 outer hyperreflective bands observed in the OCT with the histologic structures using human retinal sections and immunocytochemistry at the fovea level...
October 13, 2017: Ophthalmology
https://www.readbyqxmd.com/read/29037033/carboxymethylcellulose-mediates-the-transport-of-carbon-nanotubes-magnetite-nanohybrid-aggregates-in-water-saturated-porous-media
#19
Dengjun Wang, Chang Min Park, Arvid Masud, Nirupam Aich, Chunming Su
Carbon-metal oxide nanohybrids (NHs) are increasingly recognized as the next-generation, promising group of nanomaterials for solving emerging environmental issues and challenges. This research, for the first time, systematically explored the transport and retention of carbon nanotubes-magnetite (CNT-Fe3O4) NH aggregates in water-saturated porous media under environmentally relevant conditions. A macromolecule modifier, carboxymethylcellulose (CMC) was employed to stabilize the NHs. Our results show that transport of the magnetic CNT-Fe3O4 NHs was lower than that of non-magnetic CNT due to larger hydrodynamic sizes of NHs (induced by magnetic attraction) and size-dependent retention in porous media...
October 17, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/29036714/accounting-for-technical-noise-in-differential-expression-analysis-of-single-cell-rna-sequencing-data
#20
Cheng Jia, Yu Hu, Derek Kelly, Junhyong Kim, Mingyao Li, Nancy R Zhang
Recent technological breakthroughs have made it possible to measure RNA expression at the single-cell level, thus paving the way for exploring expression heterogeneity among individual cells. Current single-cell RNA sequencing (scRNA-seq) protocols are complex and introduce technical biases that vary across cells, which can bias downstream analysis without proper adjustment. To account for cell-to-cell technical differences, we propose a statistical framework, TASC (Toolkit for Analysis of Single Cell RNA-seq), an empirical Bayes approach to reliably model the cell-specific dropout rates and amplification bias by use of external RNA spike-ins...
September 25, 2017: Nucleic Acids Research
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