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https://www.readbyqxmd.com/read/28098880/the-role-of-gap-junctions-in-inflammatory-and-neoplastic-disorders-review
#1
Pui Wong, Victoria Laxton, Saurabh Srivastava, Yin Wah Fiona Chan, Gary Tse
Gap junctions are intercellular channels made of connexin proteins, mediating both electrical and biochemical signals between cells. The ability of gap junction proteins to regulate immune responses, cell proliferation, migration, apoptosis and carcinogenesis makes them attractive therapeutic targets for treating inflammatory and neoplastic disorders in different organ systems. Alterations in gap junction profile and expression levels are observed in hyperproliferative skin disorders, lymphatic vessel diseases, inflammatory lung diseases, liver injury and neoplastic disorders...
January 17, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28098824/fabrication-of-a-miniature-multi-parameter-sensor-chip-for-water-quality-assessment
#2
Bo Zhou, Chao Bian, Jianhua Tong, Shanhong Xia
Water contamination is a main inducement of human diseases. It is an important step to monitor the water quality in the water distribution system. Due to the features of large size, high cost, and complicated structure of traditional water determination sensors and devices, it is difficult to realize real-time water monitoring on a large scale. In this paper, we present a multi-parameter sensor chip, which is miniature, low-cost, and robust, to detect the pH, conductivity, and temperature of water simultaneously...
January 14, 2017: Sensors
https://www.readbyqxmd.com/read/28098805/chemical-constituents-from-the-roots-and-rhizomes-of-asarum-heterotropoides-var-mandshuricum-and-the-in-vitro-anti-inflammatory-activity
#3
Yu Jing, Yi-Fan Zhang, Ming-Ying Shang, Guang-Xue Liu, Yao-Li Li, Xuan Wang, Shao-Qing Cai
Anti-inflammatory compounds were investigated from the ethanol extract of the roots and rhizomes of Asarum heterotropoides var. mandshuricum, a traditional Chinese medicine called Xixin and used for pain and inflammatory. Nine new compounds were isolated, including six new lignans, neoasarinin A-C (1-3), neoasarininoside A and B (4 and 5), and asarinin B (7), and one new monoterpene, asarincin A (8), two new amides, asaramid II and III (10 and 11), and one new natural monoterpene, asaricin B (9), along with 37 known compounds (6, 12-47)...
January 13, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28098785/neighborhood-design-physical-activity-and-wellbeing-applying-the-walkability-model
#4
Adriana A Zuniga-Teran, Barron J Orr, Randy H Gimblett, Nader V Chalfoun, David P Guertin, Stuart E Marsh
Neighborhood design affects lifestyle physical activity, and ultimately human wellbeing. There are, however, a limited number of studies that examine neighborhood design types. In this research, we examine four types of neighborhood designs: traditional development, suburban development, enclosed community, and cluster housing development, and assess their level of walkability and their effects on physical activity and wellbeing. We examine significant associations through a questionnaire (n = 486) distributed in Tucson, Arizona using the Walkability Model...
January 13, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28098763/new-abietane-and-kaurane-type-diterpenoids-from-the-stems-of-tripterygium-regelii
#5
Dongsheng Fan, Shuangyan Zhou, Zhiyuan Zheng, Guo-Yuan Zhu, Xiaojun Yao, Ming-Rong Yang, Zhi-Hong Jiang, Li-Ping Bai
Eleven new abietane type (1‒11), and one new kaurane (12), diterpenes, together with eleven known compounds (13-23), were isolated and identified from the stems of Tripterygium regelii, which has been used as a traditional folk Chinese medicine for the treatment of rheumatoid arthritis in China. The structures of new compounds were characterized by means of the interpretation of high-resolution electrospray ionization mass spectrometry (HRESIMS), extensive nuclear magnetic resonance (NMR) spectroscopic data and comparisons of their experimental CD spectra with calculated electronic circular dichroism (ECD) spectra...
January 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28098752/microbiological-load-of-edible-insects-found-in-belgium
#6
Rudy Caparros Megido, Sandrine Desmedt, Christophe Blecker, François Béra, Éric Haubruge, Taofic Alabi, Frédéric Francis
Edible insects are gaining more and more attention as a sustainable source of animal protein for food and feed in the future. In Belgium, some insect products can be found on the market, and consumers are sourcing fresh insects from fishing stores or towards traditional markets to find exotic insects that are illegal and not sanitarily controlled. From this perspective, this study aims to characterize the microbial load of edible insects found in Belgium (i.e., fresh mealworms and house crickets from European farms and smoked termites and caterpillars from a traditional Congolese market) and to evaluate the efficiency of different processing methods (blanching for all species and freeze-drying and sterilization for European species) in reducing microorganism counts...
January 13, 2017: Insects
https://www.readbyqxmd.com/read/28098750/cluster-based-maximum-consensus-time-synchronization-for-industrial-wireless-sensor-networks
#7
Zhaowei Wang, Peng Zeng, Mingtuo Zhou, Dong Li, Jintao Wang
Time synchronization is one of the key technologies in Industrial Wireless Sensor Networks (IWSNs), and clustering is widely used in WSNs for data fusion and information collection to reduce redundant data and communication overhead. Considering IWSNs' demand for low energy consumption, fast convergence, and robustness, this paper presents a novel Cluster-based Maximum consensus Time Synchronization (CMTS) method. It consists of two parts: intra-cluster time synchronization and inter-cluster time synchronization...
January 13, 2017: Sensors
https://www.readbyqxmd.com/read/28098748/propagation-modeling-and-defending-of-a-mobile-sensor-worm-in-wireless-sensor-and-actuator-networks
#8
Tian Wang, Qun Wu, Sheng Wen, Yiqiao Cai, Hui Tian, Yonghong Chen, Baowei Wang
WSANs (Wireless Sensor and Actuator Networks) are derived from traditional wireless sensor networks by introducing mobile actuator elements. Previous studies indicated that mobile actuators can improve network performance in terms of data collection, energy supplementation, etc. However, according to our experimental simulations, the actuator's mobility also causes the sensor worm to spread faster if an attacker launches worm attacks on an actuator and compromises it successfully. Traditional worm propagation models and defense strategies did not consider the diffusion with a mobile worm carrier...
January 13, 2017: Sensors
https://www.readbyqxmd.com/read/28098579/xen-gel-stent-internal-ostium-occlusion-ab-interno-revision
#9
Nuno Pinto Ferreira, Luis Abegão Pinto, Carlos Marques-Neves
Minimally invasive glaucoma surgery aims to provide a safer and less-invasive means of reducing IOP compared with traditional surgery, with the goal of reducing the need for topical medications. The XEN gel stent is an ab-interno minimally invasive glaucoma surgery device that approaches intraocular pressure reduction by creating a subconjunctival drainage pathway. As with any new device there is lack of experience and knowledge about its long-term results in terms of efficacy, technique, and complications...
January 16, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28098507/development-and-evaluation-of-a-loop-mediated-isothermal-amplification-lamp-assay-for-the-detection-of-haemonchus-contortus-in-goat-fecal-samples
#10
Xin Yang, Mingwei Qi, Zongze Zhang, Chong Gao, Chunqun Wang, Weiqiang Lei, Li Tan, Junlong Zhao, Rui Fang, Min Hu
Haemonchus contortus is one of the most significant strongylid nematodes infecting small ruminants and causes great economic losses to the livestock industry worldwide. Accurate diagnosis of H. contortus is crucial to control the infection. Traditional microscopic examinations are the most common methods for the diagnosis of H. contortus, but they are time-consuming and inaccurate. Molecular methods based on PCR are more accurate, but need expensive machines usually only used in the laboratory. Loop-mediated isothermal amplification (LAMP) is a rapid, simple, specific and sensitive method that has been widely used to detect viruses, bacteria and parasites...
January 18, 2017: Journal of Parasitology
https://www.readbyqxmd.com/read/28098483/academic-performance-on-first-year-medical-school-exams-how-well-does-it-predict-later-performance-on-knowledge-based-and-clinical-assessments
#11
Edward Krupat, Stephen R Pelletier, Jules L Dienstag
Number of appearances in the bottom quartile of 1st-year medical school exams were used to represent the extent to which students were having academic difficulties. Medical educators have long expressed a desire to have indicators of medical student performance that have strong predictive validity. Predictors traditionally used fell into 4 general categories: demographic (e.g., gender), other background factors (e.g., college major), performance/aptitude (e.g., medical college admission test scores), and noncognitive factors (e...
January 18, 2017: Teaching and Learning in Medicine
https://www.readbyqxmd.com/read/28098303/topologically-inferring-pathway-activity-for-precise-survival-outcome-prediction-breast-cancer-as-a-case
#12
Wei Liu, Wei Wang, Guohua Tian, Wenming Xie, Li Lei, Jiujin Liu, Wanxun Huang, Liyan Xu, Enmin Li
Accurately predicting the survival outcome of patients is of great importance in clinical cancer research. In the past decade, building survival prediction models based on gene expression data has received increasing interest. However, the existing methods are mainly based on individual gene signatures, which are known to have limited prediction accuracy on independent datasets and unclear biological relevance. Here, we propose a novel pathway-based survival prediction method called DRWPSurv in order to accurately predict survival outcome...
January 18, 2017: Molecular BioSystems
https://www.readbyqxmd.com/read/28098301/optical-dna-mapping-in-nanofluidic-devices-principles-and-applications
#13
Vilhelm Müller, Fredrik Westerlund
Optical DNA mapping has over the last decade emerged as a very powerful tool for obtaining long range sequence information from single DNA molecules. In optical DNA mapping, intact large single DNA molecules are labeled, stretched out, and imaged using a fluorescence microscope. This means that sequence information ranging over hundreds of kilobasepairs (kbp) can be obtained in one single image. Nanochannels offer homogeneous and efficient stretching of DNA that is crucial to maximize the information that can be obtained from optical DNA maps...
January 18, 2017: Lab on a Chip
https://www.readbyqxmd.com/read/28098280/single-lithium-ion-conducting-solid-polymer-electrolytes-advances-and-perspectives
#14
REVIEW
Heng Zhang, Chunmei Li, Michal Piszcz, Estibaliz Coya, Teofilo Rojo, Lide M Rodriguez-Martinez, Michel Armand, Zhibin Zhou
Electrochemical energy storage is one of the main societal challenges to humankind in this century. The performances of classical Li-ion batteries (LIBs) with non-aqueous liquid electrolytes have made great advances in the past two decades, but the intrinsic instability of liquid electrolytes results in safety issues, and the energy density of the state-of-the-art LIBs cannot satisfy the practical requirement. Therefore, rechargeable lithium metal batteries (LMBs) have been intensively investigated considering the high theoretical capacity of lithium metal and its low negative potential...
January 18, 2017: Chemical Society Reviews
https://www.readbyqxmd.com/read/28098265/depth-selective-photothermal-ir-spectroscopy-of-skin-potential-application-for-non-invasive-glucose-measurement
#15
Otto Hertzberg, Alexander Bauer, Arne Küderle, Miguel A Pleitez, Werner Mäntele
An infrared spectroscopic technique is described that employs a mid-IR broadband (980-1245 cm(-1)) tunable quantum cascade laser (QCL) to produce a pump beam, and a detection method based on photothermal deflection, enhanced by total internal reflection. The IR spectra thus obtained are depth-dependent by modulating the pump beam with different frequencies between 10 Hz and 500 Hz. A model system consisting of glucose and a polymer film is used to demonstrate the depth selectivity of this technique. We also apply this photothermal depth profiling method to record in vivo IR spectra of the human epidermis at different depths...
January 18, 2017: Analyst
https://www.readbyqxmd.com/read/28098212/different-volumetric-measurement-methods-for-pituitary-adenomas-and-their-crucial-clinical-significance
#16
Chi-Cheng Chuang, Shinn-Yn Lin, Ping-Ching Pai, Jiun-Lin Yan, Cheng-Hong Toh, Shih-Tseng Lee, Kuo-Chen Wei, Zhuo-Hao Liu, Chung-Ming Chen, Yu-Chi Wang, Cheng-Chi Lee
Confirming the status of residual tumors is crucial. In stationary or spontaneous regression cases, early treatments are inappropriate. The long-used geometric calculation formula is 1/2 (length × width × height). However, it yields only rough estimates and is particularly unreliable for irregularly shaped masses. In our study, we attempted to propose a more accurate method. Between 2004 and 2014, 94 patients with pituitary tumors were enrolled in this retrospective study. All patients underwent transsphenoidal surgery and received magnetic resonance imaging (MRI)...
January 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28098202/superresolution-imaging-of-clinical-formalin-fixed-paraffin-embedded-breast-cancer-with-single-molecule-localization-microscopy
#17
Matthew K Creech, Jing Wang, Xiaolin Nan, Summer L Gibbs
Millions of archived formalin-fixed, paraffin-embedded (FFPE) specimens contain valuable molecular insight into healthy and diseased states persevered in their native ultrastructure. To diagnose and treat diseases in tissue on the nanoscopic scale, pathology traditionally employs electron microscopy (EM), but this platform has significant limitations including cost and painstaking sample preparation. The invention of single molecule localization microscopy (SMLM) optically overcame the diffraction limit of light to resolve fluorescently labeled molecules on the nanoscale, leading to many exciting biological discoveries...
January 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28098186/a-novel-multi-target-regression-framework-for-time-series-prediction-of-drug-efficacy
#18
Haiqing Li, Wei Zhang, Ying Chen, Yumeng Guo, Guo-Zheng Li, Xiaoxin Zhu
Excavating from small samples is a challenging pharmacokinetic problem, where statistical methods can be applied. Pharmacokinetic data is special due to the small samples of high dimensionality, which makes it difficult to adopt conventional methods to predict the efficacy of traditional Chinese medicine (TCM) prescription. The main purpose of our study is to obtain some knowledge of the correlation in TCM prescription. Here, a novel method named Multi-target Regression Framework to deal with the problem of efficacy prediction is proposed...
January 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28098103/relation-of-fibroblast-growth-factor-23-and-cardiovascular-calcification-in-end-stage-kidney-disease-patients-on-regular-hemodialysis
#19
Tarek Zakaria El Baz, Osama Ahmed Khamis, Osama Ashry Ahmed Gheith, Salama Saad Abd Ellateif, Abdallah Mahmoud Abdallah, Hussein Chahine Abd El Aal
More than half of deaths in end-stage kidney disease (ESKD) patients are due to cardiovascular disease. Elevated fibroblast growth factor 23 (FGF-23) was found to be associated with mortality in hemodialysis (HD) patients and correlates with peripheral calcification. Aortic calcification is associated with coronary artery calcification. Both aortic and peripheral vascular calcifications were associated with mortality in chronic kidney disease. We aimed to investigate the relation between intact FGF-23 and cardiovascular calcification in patients with ESKD who were maintained on regular HD...
January 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28098022/system-dynamics-research-of-remanufacturing-closed-loop-supply-chain-dominated-by-the-third-party
#20
Shidi Miao, Tengfei Wang, Deyun Chen
With the rapid development of the electronic information industry in recent years, electronic products are being updated faster and faster, and e-waste recycling has become a common problem around the world. Firstly, this article contrasts recycling at home and abroad using the predicament of Midea Corp. Based on a closed-loop supply chain with the system dynamics method, a model is constructed and simulated. In this model, the collection point coverage rate is introduced to adjust the e-waste recycling rate dynamically...
January 1, 2017: Waste Management & Research
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