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https://www.readbyqxmd.com/read/28325009/a-clinic-compatible-open-source-electrophysiology-system
#1
John Hermiz, Nick Rogers, Erik Kaestner, Mehran Ganji, Dan Cleary, Joseph Snider, David Barba, Shadi Dayeh, Eric Halgren, Vikash Gilja
Open source electrophysiology (ephys) recording systems have several advantages over commercial systems such as customization and affordability enabling more researchers to conduct ephys experiments. Notable open source ephys systems include Open-Ephys, NeuroRighter and more recently Willow, all of which have high channel count (64+), scalability, and advanced software to develop on top of. However, little work has been done to build an open source ephys system that is clinic compatible, particularly in the operating room where acute human electrocorticography (ECoG) research is performed...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28324889/evaluation-of-clinicopathological-factors-in-pd-1-response-derivation-and-validation-of-a-prediction-scale-for-response-to-pd-1-monotherapy
#2
Adi Nosrati, Katy K Tsai, Simone M Goldinger, Paul Tumeh, Barbara Grimes, Kimberly Loo, Alain P Algazi, Thi Dan Linh Nguyen-Kim, Mitchell Levesque, Reinhard Dummer, Omid Hamid, Adil Daud
BACKGROUND: Anti-PD-1 therapy has shown significant clinical activity in advanced melanoma. We developed and validated a clinical prediction scale for response to anti- PD-1 monotherapy. METHODS: A total of 315 patients with advanced melanoma treated with pembrolizumab (2 or 10 mg kg(-1) Q2W or Q3W) or nivolumab (3 mg kg(-1) Q2W) at four cancer centres between 2011 to 2013 served as the setting for the present cohort study. Variables with significant association to response on a univariate analysis were entered into a forward stepwise logistic regression model and were given a score based on ORs to calculate a clinical prediction scale...
March 21, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28324789/evaluation-of-the-abbott-realtime-hcv-genotype-ii-plus-ruo-plus-assay-with-reference-to-core-and-ns5b-sequencing
#3
Melanie A Mallory, Danijela Lucic, Mark T W Ebbert, Gavin A Cloherty, Dan Toolsie, David R Hillyard
BACKGROUND: HCV genotyping remains a critical tool for guiding initiation of therapy and selecting the most appropriate treatment regimen. Current commercial genotyping assays may have difficulty identifying 1a, 1b and genotype 6. OBJECTIVE: To evaluate the concordance for identifying 1a, 1b, and genotype 6 between two methods: the PLUS assay and core/NS5B sequencing. STUDY DESIGN: This study included 236 plasma and serum samples previously genotyped by core/NS5B sequencing...
March 9, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28324705/more-pain-more-gain-blocking-the-opioid-system-boosts-adaptive-cognitive-control
#4
Henk van Steenbergen, Daniel H Weissman, Dan J Stein, Susan Malcolm-Smith, Jack van Honk
The ability to adaptively increase cognitive control in response to cognitive challenges is crucial for goal-directed behavior. Recent findings suggest that aversive arousal triggers adaptive increases of control, but the neurochemical mechanisms underlying these effects remain unclear. Given the known contributions of the opioid system to hedonic states, we investigated whether blocking this system increases adaptive control modulations. To do so, we conducted a double-blind, placebo-controlled psychopharmacological study (n=52 females) involving a Stroop-like task...
March 7, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28324494/analysis-of-average-telomere-length-in-human-telomeric-protein-knockout-cells-generated-by-crispr-cas9
#5
Jun Xu, Zhou Songyang, Dan Liu, Hyeung Kim
Telomeres play an important role in ensuring the integrity of the genome. Telomere shortening can lead to loss of genetic information and trigger DNA damage responses. Cultured mammalian cells have served as critical model systems for studying the function of telomere binding proteins and telomerase. Tremendous heterogeneity can be observed both between species and within a single cell population. Recent advances in genome editing (such as the development of the CRISPR/Cas9 platform) have further enabled researchers to carry out loss-of-function analysis of how disrupting key players in telomere maintenance affects telomere length regulation...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28324093/association-between-radiation-therapy-surgery-or-observation-for-localized-prostate-cancer-and-patient-reported-outcomes-after-3-years
#6
Daniel A Barocas, JoAnn Alvarez, Matthew J Resnick, Tatsuki Koyama, Karen E Hoffman, Mark D Tyson, Ralph Conwill, Dan McCollum, Matthew R Cooperberg, Michael Goodman, Sheldon Greenfield, Ann S Hamilton, Mia Hashibe, Sherrie H Kaplan, Lisa E Paddock, Antoinette M Stroup, Xiao-Cheng Wu, David F Penson
Importance: Understanding the adverse effects of contemporary approaches to localized prostate cancer treatment could inform shared decision making. Objective: To compare functional outcomes and adverse effects associated with radical prostatectomy, external beam radiation therapy (EBRT), and active surveillance. Design, Setting, and Participants: Prospective, population-based, cohort study involving 2550 men (≤80 years) diagnosed in 2011-2012 with clinical stage cT1-2, localized prostate cancer, with prostate-specific antigen levels less than 50 ng/mL, and enrolled within 6 months of diagnosis...
March 21, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28324024/thyroid-hormone-receptor-%C3%AE-controls-developmental-timing-and-regulates-the-rate-and-coordination-of-tissue-specific-metamorphosis-in-xenopus-tropicalis
#7
Luan Wen, Yuki Shibata, Dan Su, Liezhen Fu, Nga Luu, Yun-Bo Shi
Thyroid hormone (T3) receptor (TR) mediates the effects of T3 on organ metabolism and animal development. There are two TR genes, TRα and TRβ, in all vertebrates. During animal development, TRα expression is activated earlier than zygotic T3 synthesis and secretion into the plasma, implicating a developmental role of TRα both in the presence and absence of T3. Using T3-dependend amphibian metamorphosis as a model, we have previously proposed a dual functional model for TRs, in particular TRα, during development...
March 14, 2017: Endocrinology
https://www.readbyqxmd.com/read/28323879/mir-181b-regulates-vascular-stiffness-age-dependently-in-part-by-regulating-tgf-%C3%AE-signaling
#8
Daijiro Hori, Brittany Dunkerly-Eyring, Yohei Nomura, Debjit Biswas, Jochen Steppan, Jorge Henao-Mejia, Hideo Adachi, Lakshmi Santhanam, Dan E Berkowitz, Charles Steenbergen, Richard A Flavell, Samarjit Das
BACKGROUND: Endothelial dysfunction and arterial stiffening play major roles in cardiovascular diseases. The critical role for the miR-181 family in vascular inflammation has been documented. Here we tested whether the miR-181 family can influence the pathogenesis of hypertension and vascular stiffening. METHODS AND RESULTS: qPCR data showed a significant decrease in miR-181b expression in the aorta of the older mice. Eight miR-181a1/b1-/- mice and wild types (C57BL6J:WT) were followed weekly for pulse wave velocity (PWV) and blood pressure measurements...
2017: PloS One
https://www.readbyqxmd.com/read/28319900/bipolar-electrochemiluminescence-on-thread-a-new-class-of-electroanalytical-sensors
#9
Rui Liu, Cuiling Liu, Huijie Li, Min Liu, Dan Wang, Chunsun Zhang
This paper introduces a new and simple concept for fabricating low-cost, easy-to-use capillary microchannel (CMC) assisted thread-based microfluidic analytical devices (CMCA-μTADs) for bipolar electrochemiluminescence (BP-ECL) application. The thread with patterns of carbon screen-printed electrodes and bare thread zones (BTZs) is embedded into a CMC. Such CMCA-μTADs can produce a strong and stable BP-ECL signal, and have an extremely low cost ($0.01 per device). Interestingly, the CMCA-μTADs are ultraflexible, and can be bent with a 135° bending angle at the BTZ or with a 150° bending angle at the middle of bipolar electrode (BPE), with no loss of analytical performance...
March 7, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28319733/plasma-cell-and-memory-b-cell-differentiation-from-the-germinal-center
#10
REVIEW
Dan Suan, Christopher Sundling, Robert Brink
Germinal centers (GCs) form in secondary lymphoid tissues in response to antigenic challenge and are the site of somatic hypermutation, generating GC B cells with increasing affinity for the inciting agent that are positively selected over time. However, it is not until GC B cells differentiate into memory B cells and plasma cells and egress from the GC back into the circulation that effective long-lived humoral immunity is conferred upon the host. Here we review what is known about the signals that initiate the transition from a GC B cell into the memory B cell and plasma cell compartments and the downstream transcriptional regulation of these processes...
March 16, 2017: Current Opinion in Immunology
https://www.readbyqxmd.com/read/28319702/volatile-organic-compounds-voc-formaldehyde-and-nitrogen-dioxide-no2-in-schools-in-johor-bahru-malaysia-associations-with-rhinitis-ocular-throat-and-dermal-symptoms-headache-and-fatigue
#11
Dan Norbäck, Jamal Hisham Hashim, Zailina Hashim, Faridah Ali
This paper studied associations between volatile organic compounds (VOC), formaldehyde, nitrogen dioxide (NO2) and carbon dioxide (CO2) in schools in Malaysia and rhinitis, ocular, nasal and dermal symptoms, headache and fatigue among students. Pupils from eight randomly selected junior high schools in Johor Bahru, Malaysia (N=462), participated (96%). VOC, formaldehyde and NO2 were measured by diffusion sampling (one week) and VOC also by pumped air sampling during class. Associations were calculated by multi-level logistic regression adjusting for personal factors, the home environment and microbial compounds in the school dust...
March 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28319570/microcystic-elongated-and-fragmented-pattern-invasion-in-ovarian-endometrioid-carcinoma-immunohistochemical-profile-and-prognostic-implications
#12
Allison Goldberg, Lauren Hand, Dan DeCotiis, Norman Rosenblum, Joanna Chan
Microcystic, elongated, and fragmented (MELF) pattern invasion is a poor prognostic indicator in uterine endometrioid carcinoma, but its existence, biology, and prognostic value have not been described in ovarian endometrioid carcinoma. We evaluated cases of ovarian endometrioid carcinoma without synchronous uterine endometrioid carcinoma for MELF and other histologic features. To evaluate tumor biology, we assessed an immunohistochemical profile, including MLH1, PMS2, MSH2, MSH6, β-catenin, e-cadherin, CK19, and cyclin D1...
March 17, 2017: International Journal of Gynecological Pathology
https://www.readbyqxmd.com/read/28319188/reduced-performance-of-a-pvc-coated-biogents-sentinel-prototype-in-comparison-to-the-original-biogents-sentinel-for-monitoring-the-asian-tiger-mosquito-aedes-albopictus-in-temperate-north-america
#13
Isik Unlu, Ary Faraji, Michael Morganti, Randy Vaeth, Karen Akaratovic, Jay Kiser, Charles Abadam, Dan Kline
Aedes albopictus is a major nuisance pest and also a public health concern because of the role it plays in the transmission of arboviruses. There is a continuing demand for effective surveillance tools for this species. The first generation of Biogents Sentinel (BGS1) traps have proven to be an effective tool for surveillance of Ae. albopictus throughout its range, however, some defects in construction led to the eventual development of the next generation. We compared the performance of the new generation prototype trap (BGS2P) to the original...
2017: PloS One
https://www.readbyqxmd.com/read/28319113/combinatorial-crispr-cas9-screens-for-de-novo-mapping-of-genetic-interactions
#14
John Paul Shen, Dongxin Zhao, Roman Sasik, Jens Luebeck, Amanda Birmingham, Ana Bojorquez-Gomez, Katherine Licon, Kristin Klepper, Daniel Pekin, Alex N Beckett, Kyle Salinas Sanchez, Alex Thomas, Chih-Chung Kuo, Dan Du, Assen Roguev, Nathan E Lewis, Aaron N Chang, Jason F Kreisberg, Nevan Krogan, Lei Qi, Trey Ideker, Prashant Mali
We developed a systematic approach to map human genetic networks by combinatorial CRISPR-Cas9 perturbations coupled to robust analysis of growth kinetics. We targeted all pairs of 73 cancer genes with dual guide RNAs in three cell lines, comprising 141,912 tests of interaction. Numerous therapeutically relevant interactions were identified, and these patterns replicated with combinatorial drugs at 75% precision. From these results, we anticipate that cellular context will be critical to synthetic-lethal therapies...
March 20, 2017: Nature Methods
https://www.readbyqxmd.com/read/28319023/isolated-bilateral-simplex-ureteric-ectopia-bladder-capacity-as-an-indicator-of-continence-outcome
#15
Vasilis Stavrinides, Paul Charlesworth, Dan Wood, Divyesh Desai, Abraham Cherian, Imran Mushtaq, Peter Cuckow, Naima Smeulders
INTRODUCTION: Isolated bilateral simplex ectopic ureters (BSEUs) are rare but pose a therapeutic challenge: ureteric reimplantation alone does not accomplish continence in all. Identifying the patients needing additional procedures for continence early could prevent multiple operations. OBJECTIVE: Potential preoperative indicators for postoperative continence are explored in eight BSEU girls without cloacal, anorectal, or spinal anomalies. STUDY DESIGN: With institutional approval, all patients with BSEU between 1985 and 2012 were retrospectively reviewed...
March 6, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28318817/clinical-and-mutational-characteristics-of-duchenne-muscular-dystrophy-patients-based-on-a-comprehensive-database-in-south-china
#16
Dan-Ni Wang, Zhi-Qiang Wang, Lei Yan, Jin He, Min-Ting Lin, Wan-Jin Chen, Ning Wang
The development of clinical trials for Duchenne muscular dystrophy (DMD) in China faces many challenges due to limited information about epidemiological data, natural history and clinical management. To provide these detailed data, we developed a comprehensive database based on registered DMD patients from South China and analysed their clinical and mutational characteristics. The database included DMD registrants confirmed by clinical presentation, family history, genetic detection, prognostic outcome, and/or muscle biopsy...
February 21, 2017: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/28318408/bone-marrow-derived-mesenchymal-stem-cells-attenuate-immune-mediated-liver-injury-and-compromise-virus-control-during-acute-hepatitis-b-virus-infection-in-mice
#17
Mengmeng Qu, Xu Yuan, Dan Liu, Yuhong Ma, Jun Zhu, Jun Cui, Mengxue Yu, Changyong Li, Deyin Guo
Mesenchymal stem cells (MSCs) have been used as therapeutic tools not only for their ability to differentiate toward different cells, but also for their unique immunomodulatory properties. However, it is still unknown how MSCs may affect immunity during hepatitis B virus (HBV) infection. This study was designed to explore the effect of bone marrow-derived MSCs (BM-MSCs) on hepatic natural killer (NK) cells in a mouse model of acute HBV infection. Mice were injected with 1 × 10(6) BM-MSCs, which stained with chloromethyl derivatives of fluorescein diacetate fluorescent probe, 24 h before hydrodynamic injection of viral DNA (pHBV1...
February 2, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28318232/histology-compatible-maldi-mass-spectrometry-based-imaging-of-neuronal-lipids-for-subsequent-immunofluorescent-staining
#18
Ibrahim Kaya, Wojciech Michno, Dimitri Brinet, Yasmine Iacone, Giulia Zanni, Kaj Blennow, Henrik Zetterberg, Jörg Hanrieder
Matrix assisted laser desorption/ionization imaging mass spectrometry (MALDI-IMS) enables acquisition of spatial distribution maps for molecular species in situ. This can provide comprehensive insights on the pathophysiology of different diseases. However, current sample preparation and MALDI-IMS acquisition methods have limitations in preserving molecular and histological tissue morphology, resulting in interfered correspondence of MALDI-IMS data with subsequently acquired immunofluorescent staining results...
March 20, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28318227/boosting-fiber-shaped-photodetectors-via-soft-interfaces
#19
Zhengfeng Zhu, Dan Ju, Yousheng Zou, Yuhui Dong, Linbao Luo, Tengfei Zhang, Dan Shan, Haibo Zeng
The lightweight, flexible fiber-shaped devices that can be woven into wearable electronic products has caught great attentions in recent years. However the bending and poor interfaces of fiber-shaped devices typically leads to ineluctable performance degradation, which is still a great challenge to be dealt with. Here, taking fiber-shaped photodetector as an example, we proposed an effective strategy, constructing inorganic-organic-graphene hybrid interfaces on a single fiber, to greatly improve the performances of fiber-shaped device...
March 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28318034/tracking-the-origins-of-the-kok-effect-70-years-after-its-discovery
#20
Guillaume Tcherkez, Paul Gauthier, Thomas N Buckley, Florian A Busch, Margaret M Barbour, Dan Bruhn, Mary A Heskel, Xiao Ying Gong, Kristine Crous, Kevin L Griffin, Danielle A Way, Matthew H Turnbull, Mark A Adams, Owen K Atkin, Michael Bender, Graham D Farquhar, Gabriel Cornic
No abstract text is available yet for this article.
April 2017: New Phytologist
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