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Murray-Ramcharan M, Fonseca Mora MC, Gattorno F, Andrade J. Laparoscopic Janeway gastrostomy as preferred enteral access in specific patient populations: A systematic review and case series. World J Gastrointest Endosc 2022; 14:616-627. [PMID: 36303810 PMCID: PMC9593515 DOI: 10.4253/wjge.v14.i10.616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 08/05/2022] [Accepted: 10/05/2022] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Nutrition is one of the fundamental needs of both patient and non-patient populations. General trends promote enteral feeding as a superior route, with the most common enteral access being the percutaneous endoscopic gastrostomy (PEG) as the first-line procedure, with surgical access including Witzel gastrostomy, Stamm Gastrostomy, Janeway gastrostomy (JG) as secondary means.
AIM To describe cases and technique of laparoscopic Janeway gastrostomy (LJG) and perform a systematic review of the data.
METHODS We successfully performed two LJG procedures, after which we conducted a literature review of all documented cases of LJG from 1991 to 2022. We surveyed these cases to show the efficacy of LJG and provide comparisons to other existing procedures with primary outcomes of operative time, complications, duration of gastrostomy use, and application settings. The data were then extracted and assessed on the basis of the Reference Citation Analysis (https://www.referencecitationanalysis.com/).
RESULTS We presented two cases of LJG, detailing the simplicity and benefits of this technique. We subsequently identified 26 articles and 56 cases of LJG and extrapolated the data relating to our outcome measures. We could show the potential of LJG as a viable and preferred option in certain patient populations requiring enteral access, drawing reference to its favorable outcome profile and low complication rate.
CONCLUSION The LJG is a simple, reproducible procedure with a favorable complication profile. By its technical ease and benefits relating to the gastric tube formed, we propose this procedure as a viable, favorable enteral access in patients with the need for permanent or palliative gastrostomy, those with neurologic disease, agitation or at high risk of gastrostomy dislodgement, or where PEG may be infeasible.
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Affiliation(s)
- Max Murray-Ramcharan
- Department of General Surgery, Harlem Hospital Center, Harlem, NY 10037, United States
| | - Maria Camilla Fonseca Mora
- Department of Medicine, NYU Langone Medical Center-Woodhull Medical Center, Brooklyn, NY 11206, United States
| | - Federico Gattorno
- Department of Surgery, NYU Langone Medical Center-Woodhull Medical Center, Brooklyn, NY 11206, United States
| | - Javier Andrade
- Department of Surgery, NYU Langone Medical Center-Woodhull Medical Center, Brooklyn, NY 11206, United States
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2
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Vandenberg LN. Toxicity testing and endocrine disrupting chemicals. Adv Pharmacol 2021; 92:35-71. [PMID: 34452691 DOI: 10.1016/bs.apha.2021.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
Regulatory agencies around the world depend on standardized testing approaches to evaluate environmental chemicals for endocrine disrupting properties. The US Environmental Protection Agency (EPA) has developed a two-tiered testing approach within its Endocrine Disruptor Screening Program (EDSP). The eleven Tier 1 and three Tier 2 EDSP assays can be used to identify chemicals that act as agonists or antagonists of estrogen receptor, androgen receptor, or thyroid hormone receptor, or chemicals that interfere with steroidogenesis. Additional assays have been developed in the context of Tox21, and others have been validated by the OECD. In spite of the availability of validated toxicity tests, problems have been identified with the approaches and methods used to identify endocrine disrupting chemicals (EDCs). This chapter will provide an overview of several of these issues including: (1) The way an EDC is defined by an agency impacts whether a specific test can be used to determine if a chemical is an EDC. This is especially important when considering which assays examine outcomes that are considered "adverse effects." (2) Some assumptions about the validated studies used to identify EDCs may not be true (e.g., their reproducibility has been questioned). (3) Many of the validated assays are less sensitive than other methods that have not yet been validated. Ultimately, these and other problems contribute to the current landscape, where testing approaches have failed to protect the public from known EDCs. The chapter concludes with a review of approaches that have been taken to improve current guideline studies.
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Affiliation(s)
- Laura N Vandenberg
- Department of Environmental Health Sciences, School of Public Health & Health Sciences, University of Massachusetts Amherst, Amherst, MA, United States.
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3
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Abstract
Reporting generalisable data across stroke populations is important. We aimed to evaluate the Impact of Visual Impairment after Stroke (IVIS) visual assessment protocol in a different UK geographical area. This was a single-centre acute stroke unit, prospective study (IVIS-extension (IVIS-e) study) with comparison to a multi-centre acute stroke cohort (IVIS study). Orthoptists reviewed all stroke survivors with a standardised assessment of visual acuity, visual fields, ocular alignment, ocular motility, visual inattention and visual perception including a standardised follow-up strategy. 123 stroke survivors underwent visual screening: 42% women, 58% men, mean age 63.6 years and 86% ischaemic strokes. Ethnicity consisted of 68.3% white British and 28.5% being Pakistani, Indian, Caribbean, Bangladeshi, Black and Chinese. Two died and 28 could not be assessed. Of the 93 remaining, 10 stroke survivors (10.8%) had a normal visual assessment and 83 (89.2%) had visual impairments detected. Fifty-seven stroke survivors were assessed at their first orthoptic visit within 3 days of stroke onset; the remainder being assessed at subsequent orthoptic visits to the stroke unit. The visual profile was similar across the IVIS-e and original IVIS cohorts for most types of visual impairment although, overall, more visual impairment was detected in IVIS-e. Differences between the cohorts were primarily related to lower age and smaller white British ethnicity in the IVIS-e cohort. This likely relates to the differing population demographics for the two cohort geographical areas. Further roll-out of the IVIS assessment protocol to other regions and countries would improve detection of post-stroke visual impairment.
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Affiliation(s)
- Fiona J Rowe
- Department of Health Services Research, University of Liverpool, Liverpool, UK
| | - Lauren R Hepworth
- Department of Health Services Research, University of Liverpool, Liverpool, UK
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Bray SA, Senapathi T, Barnett CB, Grüning BA. Intuitive, reproducible high-throughput molecular dynamics in Galaxy: a tutorial. J Cheminform 2020; 12:54. [PMID: 33431030 PMCID: PMC7488338 DOI: 10.1186/s13321-020-00451-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Accepted: 07/27/2020] [Indexed: 11/10/2022] Open
Abstract
This paper is a tutorial developed for the data analysis platform Galaxy. The purpose of Galaxy is to make high-throughput computational data analysis, such as molecular dynamics, a structured, reproducible and transparent process. In this tutorial we focus on 3 questions: How are protein-ligand systems parameterized for molecular dynamics simulation? What kind of analysis can be carried out on molecular trajectories? How can high-throughput MD be used to study multiple ligands? After finishing you will have learned about force-fields and MD parameterization, how to conduct MD simulation and analysis for a protein-ligand system, and understand how different molecular interactions contribute to the binding affinity of ligands to the Hsp90 protein.
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Affiliation(s)
- Simon A Bray
- Department of Computer Science, University of Freiburg, Georges-Köhler-Allee 106, Freiburg, Germany
| | - Tharindu Senapathi
- Department of Chemistry and Scientific Computing Research Unit, University of Cape Town, 7700, Cape Town, South Africa
| | - Christopher B Barnett
- Department of Chemistry and Scientific Computing Research Unit, University of Cape Town, 7700, Cape Town, South Africa.
| | - Björn A Grüning
- Department of Computer Science, University of Freiburg, Georges-Köhler-Allee 106, Freiburg, Germany.
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Beck MW, O’Hara C, Stewart Lowndes JS, D. Mazor R, Theroux S, J. Gillett D, Lane B, Gearheart G. The importance of open science for biological assessment of aquatic environments. PeerJ 2020; 8:e9539. [PMID: 32742805 PMCID: PMC7377246 DOI: 10.7717/peerj.9539] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 06/23/2020] [Indexed: 11/22/2022] Open
Abstract
Open science principles that seek to improve science can effectively bridge the gap between researchers and environmental managers. However, widespread adoption has yet to gain traction for the development and application of bioassessment products. At the core of this philosophy is the concept that research should be reproducible and transparent, in addition to having long-term value through effective data preservation and sharing. In this article, we review core open science concepts that have recently been adopted in the ecological sciences and emphasize how adoption can benefit the field of bioassessment for both prescriptive condition assessments and proactive applications that inform environmental management. An example from the state of California demonstrates effective adoption of open science principles through data stewardship, reproducible research, and engagement of stakeholders with multimedia applications. We also discuss technical, sociocultural, and institutional challenges for adopting open science, including practical approaches for overcoming these hurdles in bioassessment applications.
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Affiliation(s)
- Marcus W. Beck
- Southern California Coastal Water Research Project, Costa Mesa, CA, USA
- Tampa Bay Estuary Program, Saint Petersburg, FL, USA
| | - Casey O’Hara
- Bren School of Environmental Sciences & Management, University of California, Santa Barbara, CA, USA
| | | | - Raphael D. Mazor
- Southern California Coastal Water Research Project, Costa Mesa, CA, USA
| | - Susanna Theroux
- Southern California Coastal Water Research Project, Costa Mesa, CA, USA
| | - David J. Gillett
- Southern California Coastal Water Research Project, Costa Mesa, CA, USA
| | - Belize Lane
- Department of Civil and Environmental Engineering, Utah Water Research Laboratory, Utah State University, Logan, UT, USA
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Winter F, Okano I, Salzmann SN, Rentenberger C, Shue J, Sama AA, Girardi FP, Cammisa FP, Hughes AP. A Novel and Reproducible Classification of the Vertebral Artery in the Subaxial Cervical Spine. Oper Neurosurg (Hagerstown) 2020; 18:676-683. [PMID: 31586208 DOI: 10.1093/ons/opz310] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 07/29/2019] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND An injury of the vertebral artery (VA) is one of the most catastrophic complications in the setting of cervical spine surgery. Anatomic variations of the VA can increase the risk of iatrogenic lacerations. OBJECTIVE To propose a novel and reproducible classification system that describes the position of the VA based on a 2-dimensional map on computed tomography angiographs (CTA). METHODS This cross-sectional retrospective study reviewed 248 consecutive CTAs of the cervical spine at a single academic institution between 2007 and 2018. The classification consists of a number that characterizes the location of the VA from the medio-lateral (ML) aspect of the vertebral body. In addition, a letter describes the VA location from the anterior-posterior (AP) aspect. The reliability and reproducibility were assessed by 2 independent raters on 200 VAs. RESULTS The inter- and intrarater reliability values showed the classification's reproducibility. The inter-rater reliability weighted κ-value for the ML aspect was 0.93 (95% CI: 0.93-0.93). The unweighted κ-value was 0.93 (95% CI: 0.86-1.00) for "at-risk" positions (ML grade ≥1), and 0.87 (95% CI: 0.75-1.00) for "high-risk" positions (ML grade ≥2). The weighted κ-value for the intrarater reliability was 0.94 (95% CI: 0.95-0.95). The unweighted κ-values for the intrarater reliability were 0.95 (95% CI: 0.91-0.99) for "at-risk" positions, and 0.87 (95% CI: 0.78-0.96) for "high-risk" positions. CONCLUSION The proposed classification is reliable, reproducible, and independent of individual anatomic size variations. The use of this novel grading system could improve the understanding and interdisciplinary communication about VA anomalies.
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Affiliation(s)
- Fabian Winter
- Department of Orthopedic Surgery, Hospital for Special Surgery, New York City, New York
| | - Ichiro Okano
- Department of Orthopedic Surgery, Hospital for Special Surgery, New York City, New York
| | - Stephan N Salzmann
- Department of Orthopedic Surgery, Hospital for Special Surgery, New York City, New York
| | - Colleen Rentenberger
- Department of Orthopedic Surgery, Hospital for Special Surgery, New York City, New York
| | - Jennifer Shue
- Department of Orthopedic Surgery, Hospital for Special Surgery, New York City, New York
| | - Andrew A Sama
- Department of Orthopedic Surgery, Hospital for Special Surgery, New York City, New York
| | - Federico P Girardi
- Department of Orthopedic Surgery, Hospital for Special Surgery, New York City, New York
| | - Frank P Cammisa
- Department of Orthopedic Surgery, Hospital for Special Surgery, New York City, New York
| | - Alexander P Hughes
- Department of Orthopedic Surgery, Hospital for Special Surgery, New York City, New York
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Wu H, Wang Q, Fei GT, Xu SH, Guo X, De Zhang L. Preparation of Hollow Polyaniline Micro/Nanospheres and Their Removal Capacity of Cr (VI) from Wastewater. Nanoscale Res Lett 2018; 13:401. [PMID: 30536050 PMCID: PMC6286291 DOI: 10.1186/s11671-018-2815-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 11/22/2018] [Indexed: 06/09/2023]
Abstract
The hollow polyaniline (PANI) micro/nanospheres are obtained through a simple monomer polymerization in alkaline solution with Triton X-100 Micelles as soft templates. The hollow PANI micro/nanospheres demonstrate rapid and effective removal ability for Chromium (VI) (Cr (VI)) in a wide pH range, and the maximum removal capacity can reach 127.88 mg/g at pH 3. After treated with acid, the used hollow PANI micro/nanospheres have about the similar removal capacity of Cr (VI) from wastewater.
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Affiliation(s)
- Honge Wu
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, P. O. Box 1129, Hefei, 230031 People’s Republic of China
- University of Science and Technology of China, Hefei, 230026 People’s Republic of China
- College of Biological and Chemical Engineering, Anhui Polytechnic University, Wuhu, 241000 People’s Republic of China
| | - Qing Wang
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, P. O. Box 1129, Hefei, 230031 People’s Republic of China
| | - Guang Tao Fei
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, P. O. Box 1129, Hefei, 230031 People’s Republic of China
| | - Shao Hui Xu
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, P. O. Box 1129, Hefei, 230031 People’s Republic of China
| | - Xiao Guo
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, P. O. Box 1129, Hefei, 230031 People’s Republic of China
| | - Li De Zhang
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, P. O. Box 1129, Hefei, 230031 People’s Republic of China
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8
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Rougier NP, Hinsen K, Alexandre F, Arildsen T, Barba LA, Benureau FC, Brown CT, de Buyl P, Caglayan O, Davison AP, Delsuc MA, Detorakis G, Diem AK, Drix D, Enel P, Girard B, Guest O, Hall MG, Henriques RN, Hinaut X, Jaron KS, Khamassi M, Klein A, Manninen T, Marchesi P, McGlinn D, Metzner C, Petchey O, Plesser HE, Poisot T, Ram K, Ram Y, Roesch E, Rossant C, Rostami V, Shifman A, Stachelek J, Stimberg M, Stollmeier F, Vaggi F, Viejo G, Vitay J, Vostinar AE, Yurchak R, Zito T. Sustainable computational science: the ReScience initiative. PeerJ Comput Sci 2017; 3:e142. [PMID: 34722870 PMCID: PMC8530091 DOI: 10.7717/peerj-cs.142] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 11/15/2017] [Indexed: 05/30/2023]
Abstract
Computer science offers a large set of tools for prototyping, writing, running, testing, validating, sharing and reproducing results; however, computational science lags behind. In the best case, authors may provide their source code as a compressed archive and they may feel confident their research is reproducible. But this is not exactly true. James Buckheit and David Donoho proposed more than two decades ago that an article about computational results is advertising, not scholarship. The actual scholarship is the full software environment, code, and data that produced the result. This implies new workflows, in particular in peer-reviews. Existing journals have been slow to adapt: source codes are rarely requested and are hardly ever actually executed to check that they produce the results advertised in the article. ReScience is a peer-reviewed journal that targets computational research and encourages the explicit replication of already published research, promoting new and open-source implementations in order to ensure that the original research can be replicated from its description. To achieve this goal, the whole publishing chain is radically different from other traditional scientific journals. ReScience resides on GitHub where each new implementation of a computational study is made available together with comments, explanations, and software tests.
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Affiliation(s)
| | - Konrad Hinsen
- Centre de Biophysique Moléculaire UPR4301, CNRS, Orléans, France
| | | | - Thomas Arildsen
- Department of Electronic Systems, Technical Faculty of IT and Design, Aalborg University, Aalborg, Denmark
| | - Lorena A. Barba
- Department of Mechanical and Aerospace Engineering, The George Washington University, Washington, D.C., USA
| | | | - C. Titus Brown
- Department of Population Health and Reproduction, University of California Davis, Davis, CA, USA
| | - Pierre de Buyl
- Instituut voor Theoretische Fysica, KU Leuven, Leuven, Belgium
| | - Ozan Caglayan
- Laboratoire d’Informatique (LIUM), Le Mans University, Le Mans, France
| | | | - Marc-André Delsuc
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, Illkirch, France
| | - Georgios Detorakis
- Department of Cognitive Sciences, University of California Irvine, Irvine, CA, USA
| | - Alexandra K. Diem
- Computational Engineering and Design, University of Southampton, Southampton, United Kingdom
| | - Damien Drix
- Humboldt Universität zu Berlin, Berlin, Germany
| | - Pierre Enel
- Department of Neuroscience, Mount Sinai School of Medicine, New York, NY, USA
| | - Benoît Girard
- Institute of Intelligent Systems and Robotics, Sorbonne Universités - UPMC Univ Paris 06 - CNRS, Paris, France
| | - Olivia Guest
- Experimental Psychology, University College London, London, Greater London, United Kingdom
| | - Matt G. Hall
- UCL Great Ormond St Institute of Child Health, London, United Kingdom
| | - Rafael N. Henriques
- Champalimaud Centre for the Unknown, Champalimaud Neuroscience Program, Lisbon, Portugal
| | | | - Kamil S. Jaron
- Department of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland
| | - Mehdi Khamassi
- Institute of Intelligent Systems and Robotics, Sorbonne Universités - UPMC Univ Paris 06 - CNRS, Paris, France
| | - Almar Klein
- Independent scholar, Enschede, The Netherlands
| | - Tiina Manninen
- BioMediTech Institute and Faculty of Biomedical Sciences and Engineering, Tampere University of Technology, Tampere, Finland
| | - Pietro Marchesi
- Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, The Netherlands
| | - Daniel McGlinn
- Department of Biology, College of Charleston, Charleston, SC, USA
| | - Christoph Metzner
- Centre for Computer Science and Informatics Research, University of Hertfordshire, Hatfield, United Kingdom
| | - Owen Petchey
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland
| | - Hans Ekkehard Plesser
- Faculty of Science and Technology, Norwegian University of Life Sciences, Aas, Norway
| | - Timothée Poisot
- Département de Sciences Biologiques, Université de Montréal, Montréal, QC, Canada
| | - Karthik Ram
- Berkeley Institute for Data Science, University of California, Berkeley, CA, USA
| | - Yoav Ram
- Department of Biology, Stanford University, Stanford, CA, USA
| | - Etienne Roesch
- Centre for Integrative Neuroscience, University of Reading, Reading, United Kingdom
| | - Cyrille Rossant
- Institute of Neurology, University College London, London, United Kingdom
| | - Vahid Rostami
- Institute of Neuroscience & Medicine, Juelich Forschungszentrum, Jülich, Germany
| | - Aaron Shifman
- Department of Biology, University of Ottawa, Ottawa, Ontario, Canada
| | - Jemma Stachelek
- Department of Fisheries and Wildlife, Michigan State University, East Lansing, MI, USA
| | - Marcel Stimberg
- Sorbonne Universités/UPMC Univ Paris 06/INSERM/CNRS/Institut de la Vision, Paris, France
| | - Frank Stollmeier
- Max Planck Institute for Dynamics and Self-Organization, Göttingen, Lower Saxony, Germany
| | | | - Guillaume Viejo
- Institute of Intelligent Systems and Robotics, Sorbonne Universités - UPMC Univ Paris 06 - CNRS, Paris, France
| | - Julien Vitay
- Department of Computer Science, Chemnitz University of Technology, Chemnitz, Saxony, Germany
| | - Anya E. Vostinar
- Department of Computer Science, Grinnell College, Grinnell, IA, USA
| | | | - Tiziano Zito
- Neural Information Processing Group, Eberhard Karls Universität Tübingen, Tübingen, Germany
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9
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Cai X, Weng S, Guo R, Lin L, Chen W, Zheng Z, Huang Z, Lin X. Ratiometric electrochemical immunoassay based on internal reference value for reproducible and sensitive detection of tumor marker. Biosens Bioelectron 2016; 81:173-180. [PMID: 26945184 DOI: 10.1016/j.bios.2016.02.066] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Revised: 02/21/2016] [Accepted: 02/25/2016] [Indexed: 02/04/2023]
Abstract
A ratiometric assay in an electrochemical immunosensor for tumor marker, herein carcinoembryonic antigen (CEA) was chosen as a model analyte, was developed to improve simplicity and accuracy. The immunosensor was fabricated via the simple expedient way of using Polythionine-gold (PTh-Au) as electrode modified material to be an internal reference signal and K3[Fe(CN)6] in electrolyte as an indicator signal. When the CEA was fixed on the modified electrode via immunoreaction, only the indicator signal sensitively altered; by contrast, the internal reference signal of PTh-Au remained constant at a suitable pH of the electrolyte. The ratio between the alterations of the indicator signal of K3[Fe(CN)6] and the constant internal reference signal can be used to monitor the concentration of CEA reliably, reproducibly, and sensitively. The prepared ratiometric electrochemical immunosensor could detect CEA with good specificity within a wide linear range from 0.005ng/ml to 40ng/ml with a detection limit of 2.2pg/ml. Additionally, experimental results confirm that our proposed method is practical. Thus, this method can expand to recognize and test other protein markers.
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Affiliation(s)
- Xiaohui Cai
- Department of Pharmaceutical Analysis, Faculty of Pharmacy, the Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Fujian Medical University, Fuzhou 350108, China
| | - Shaohuang Weng
- Department of Pharmaceutical Analysis, Faculty of Pharmacy, the Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Fujian Medical University, Fuzhou 350108, China.
| | - Rubin Guo
- Department of Pharmaceutical Analysis, Faculty of Pharmacy, the Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Fujian Medical University, Fuzhou 350108, China
| | - Liqing Lin
- Department of Pharmaceutical Analysis, Faculty of Pharmacy, the Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Fujian Medical University, Fuzhou 350108, China
| | - Wei Chen
- Department of Pharmaceutical Analysis, Faculty of Pharmacy, the Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Fujian Medical University, Fuzhou 350108, China
| | | | - Zhengjun Huang
- Department of Pharmaceutical Analysis, Faculty of Pharmacy, the Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Fujian Medical University, Fuzhou 350108, China
| | - Xinhua Lin
- Department of Pharmaceutical Analysis, Faculty of Pharmacy, the Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Fujian Medical University, Fuzhou 350108, China.
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10
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Abstract
Chromosomal rearrangements resulting in the creation of novel gene products, termed fusion genes, have been identified as driving events in the development of multiple types of cancer. As these gene products typically do not exist in normal cells, they represent valuable prognostic and therapeutic targets. Advances in next-generation sequencing and computational approaches have greatly improved our ability to detect and identify fusion genes. Nevertheless, these approaches require significant computational resources. Here we describe an approach which leverages cloud computing technologies to perform fusion gene detection from RNA sequencing data at any scale. We additionally highlight methods to enhance reproducibility of bioinformatics analyses which may be applied to any next-generation sequencing experiment.
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Affiliation(s)
- Vladan Arsenijevic
- Department of Bioinformatics, Seven Bridges Genomics, One Broadway, 14th Floor, Cambridge, MA, 02142, USA
| | - Brandi N Davis-Dusenbery
- Department of Bioinformatics, Seven Bridges Genomics, One Broadway, 14th Floor, Cambridge, MA, 02142, USA.
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11
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Reed H, Stanton A, Wheat J, Kelley J, Davis L, Rao W, Smith A, Owen D, Francese S. The Reed-Stanton press rig for the generation of reproducible fingermarks: Towards a standardised methodology for fingermark research. Sci Justice 2016; 56:9-17. [PMID: 26746821 DOI: 10.1016/j.scijus.2015.10.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Revised: 10/07/2015] [Accepted: 10/09/2015] [Indexed: 12/01/2022]
Abstract
In the search for better or new methods/techniques to visualise fingermarks or to analyse them exploiting their chemical content, fingermarks inter-variability may hinder the assessment of the method effectiveness. Variability is due to changes in the chemical composition of the fingermarks between different donors and within the same donor, as well as to differential contact time, pressure and angle. When validating a method or comparing it with existing ones, it is not always possible to account for this type of variability. One way to compensate for these issues is to employ, in the early stages of the method development, a device generating reproducible fingermarks. Here the authors present their take on such device, as well as quantitatively describing its performance and benefits against the manual production of marks. Finally a short application is illustrated for the use of this device, at the method developmental stages, in an emerging area of fingerprinting research concerning the retrieval of chemical intelligence from fingermarks.
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Affiliation(s)
- H Reed
- Art and Design Research Centre, Sheffield Hallam University, UK
| | - A Stanton
- Art and Design Research Centre, Sheffield Hallam University, UK
| | - J Wheat
- Centre for Sports Engineering Research, Sheffield Hallam University, UK
| | - J Kelley
- Centre for Sports Engineering Research, Sheffield Hallam University, UK
| | - L Davis
- Fingerprint Bureau, Forensic Services, Scottish Police Authority, Glasgow, UK
| | - W Rao
- Department of Chemistry and Biochemistry, University of Oklahoma, OK, USA
| | - A Smith
- Department of Health Sciences, University of Milano Bicocca, Monza, Italy
| | - D Owen
- Department of Physics and Astronomy, The University of Sheffield, UK
| | - S Francese
- Centre For Mass Spectrometry Imaging, Biomolecular Research Centre, Sheffield Hallam University, UK.
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Gnanaraj WE, Antonisamy JM, R B M, Subramanian KM. In vitro clonal propagation of Achyranthes aspera L. and Achyranthes bidentata Blume using nodal explants. Asian Pac J Trop Biomed 2015; 2:1-5. [PMID: 23569824 DOI: 10.1016/s2221-1691(11)60179-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2011] [Revised: 06/27/2011] [Accepted: 07/10/2011] [Indexed: 11/28/2022] Open
Abstract
OBJECTIVE To develop the reproducible in vitro propagation protocols for the medicinally important plants viz., Achyranthes aspera (A. aspera) L. and Achyranthes bidentata (A. bidentata) Blume using nodal segments as explants. METHODS Young shoots of A. aspera and A. bidentata were harvested and washed with running tap water and treated with 0.1% bavistin and rinsed twice with distilled water. Then the explants were surface sterilized with 0.1% (w/v) HgCl2 solutions for 1 min. After rinsing with sterile distilled water for 3-4 times, nodal segments were cut into smaller segments (1 cm) and used as the explants. The explants were placed horizontally as well as vertically on solid basal Murashige and Skoog (MS) medium supplemented with 3% sucrose, 0.6% (w/v) agar (Hi-Media, Mumbai) and different concentration and combination of 6-benzyl amino purine (BAP), kinetin (Kin), naphthalene acetic acid (NAA) and indole acetic acid (IAA) for direct regeneration. RESULTS Adventitious proliferation was obtained from A. aspera and A. bidentata nodal segments inoculated on MS basal medium with 3% sucrose and augmented with BAP and Kin with varied frequency. MS medium augmented with 3.0 mg/L of BAP showed the highest percentage (93.60±0.71) of shootlets formation for A. aspera and (94.70±0.53) percentages for A. bidentata. Maximum number of shoots/explants (10.60±0.36) for A. aspera and (9.50±0.56) for A. bidentata was observed in MS medium fortified with 5.0 mg/L of BAP. For A. aspera, maximum mean length (5.50±0.34) of shootlets was obtained in MS medium augmented with 3.0 mg/L of Kin and for A. bidentata (5.40±0.61) was observed in the very same concentration. The highest percentage, maximum number of rootlets/shootlet and mean length of rootlets were observed in 1/2 MS medium supplemented with 1.0 mg/L of IBA. Seventy percentages of plants were successfully established in polycups. Sixty eight percentages of plants were well established in the green house condition. Sixty five percentages of plants were established in the field. CONCLUSIONS The results have shown that use of nodal buds is an alternative reproducible and dependable method for clonal propagation of A. aspera and A. bidentata. The high rate of direct shoot-root multiplication and their high rate of post-hardening survival indicate that this protocol can be easily adopted for commercial large scale cultivation.
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