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Research Methods in Life Sciences Commons™
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- Experimentation Collection (8)
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Articles 31 - 47 of 47
Full-Text Articles in Research Methods in Life Sciences
Laboratory Routines Cause Animal Stress, Jonathan P. Balcombe, Neal D. Barnard, Chad Sandusky
Laboratory Routines Cause Animal Stress, Jonathan P. Balcombe, Neal D. Barnard, Chad Sandusky
Jonathan Balcombe, PhD
Eighty published studies were appraised to document the potential stress associated with three routine laboratory procedures commonly performed on animals: handling, blood collection, and orogastric gavage. We defined handling as any non-invasive manipulation occurring as part of routine husbandry, including lifting an animal and cleaning or moving an animal's cage. Significant changes in physiologic parameters correlated with stress (e.g., serum or plasma concentrations of corticosterone, glucose, growth hormone or prolactin, heart rate, blood pressure, and behavior) were associated with all three procedures in multiple species in the studies we examined. The results of these studies demonstrated that animals responded with …
A Longitudinal View Of Primate Life In Two American Laboratories, Jonathan Balcombe
A Longitudinal View Of Primate Life In Two American Laboratories, Jonathan Balcombe
Experimentation Collection
If representative of other facilities, our findings uncover serious welfare concerns for the wellbeing of primates kept in American research facilities. These animals face regular or chronic sources of pain and distress including noxious experimental and non‐experimental events and illness and injury; and severe and prolonged social disruptions. Pain relief is meager by comparison to that normally provided to humans, despite legislative requirements to minimize pain and distress and assume similarity to humans in terms of ability to experience pain and distress. Living environments are usually confinement indoors to a metal cage, often alone, and often with a minimum of …
Animal Carcinogenicity Studies: Implications For The Reach System, Andrew Knight, Jarrod Bailey, Jonathan Balcombe
Animal Carcinogenicity Studies: Implications For The Reach System, Andrew Knight, Jarrod Bailey, Jonathan Balcombe
Jonathan Balcombe, PhD
The 2001 European Commission proposal for the Registration, Evaluation and Authorisation of Chemicals (REACH) aims to improve public and environmental health by assessing the toxicity of, and restricting exposure to, potentially toxic chemicals. The greatest benefits are expected to accrue from decreased cancer incidences. Hence the accurate identification of chemical carcinogens must be a top priority for the REACH system. Due to a paucity of human clinical data, the identification of potential human carcinogens has conventionally relied on animal tests. However, our survey of the US Environmental Protection Agency’s (EPA’s) toxic chemicals database revealed that, for a majority of the …
Medical Training Using Simulation: Toward Fewer Animals And Safer Patients, Jonathan Balcombe
Medical Training Using Simulation: Toward Fewer Animals And Safer Patients, Jonathan Balcombe
Jonathan Balcombe, PhD
This paper presents the current status of computer-based simulation in medicine. Recent technological advances have enabled this field to emerge from esoteric explorations in academic laboratories to commercially available simulators designed to train users to perform medical procedures from start to finish. Today, more than a dozen companies are producing virtual reality simulators and interactive manikins for training in endoscopy, laparoscopy, anaesthesia, trauma management, angiography, and needle insertion. For many of these procedures, thousands of animals are still being used in training. Yet simulation has many advantages that can transcend scientific, ethical, economic and logistical problems that arise when using …
Animal Carcinogenicity Studies: 1. Poor Human Predictivity, Andrew Knight, Jarrod Bailey, Jonathan Balcombe
Animal Carcinogenicity Studies: 1. Poor Human Predictivity, Andrew Knight, Jarrod Bailey, Jonathan Balcombe
Jonathan Balcombe, PhD
The regulation of human exposure to potentially carcinogenic chemicals constitutes society’s most important use of animal carcinogenicity data. Environmental contaminants of greatest concern within the USA are listed in the Environmental Protection Agency’s (EPA’s) Integrated Risk Information System (IRIS) chemicals database. However, of the 160 IRIS chemicals lacking even limited human exposure data but possessing animal data that had received a human carcinogenicity assessment by 1 January 2004, we found that in most cases (58.1%; 93/160), the EPA considered animal carcinogenicity data inadequate to support a classification of probable human carcinogen or non-carcinogen. For the 128 chemicals with human or …
A Multivariate Model Of Stakeholder Preference For Lethal Cat Management, Dara M. Wald, Susan K. Jacobson
A Multivariate Model Of Stakeholder Preference For Lethal Cat Management, Dara M. Wald, Susan K. Jacobson
Dara Wald
State-Of-The-Art Of 3d Cultures (Organs-On-A-Chip) In Safety Testing And Pathophysiology, Natalie Alépée, Anthony Bahinski, Mardas Daneshian, Bart De Wever, Alan Goldberg, Jan Hansmann, Thomas Hartung, John Haycock, Helena T. Hogberg, Lisa Hoelting, Jens M. Kelm, Suzanne Kadereit, Emily Mcvey, Robert Landsiedel, Marcel Leist, Marc Lübberstedt, Fozia Noor, Christian Pellevoisin, Dirk Petersohn, Uwe Pfannenbecker, Kerstin Reisinger, Tzutzuy Ramirez, Barbara Rothen-Rutishauser, Monika Schäfer-Korting, Katrin Zeilinger, Marie-Gabriele Zurich
State-Of-The-Art Of 3d Cultures (Organs-On-A-Chip) In Safety Testing And Pathophysiology, Natalie Alépée, Anthony Bahinski, Mardas Daneshian, Bart De Wever, Alan Goldberg, Jan Hansmann, Thomas Hartung, John Haycock, Helena T. Hogberg, Lisa Hoelting, Jens M. Kelm, Suzanne Kadereit, Emily Mcvey, Robert Landsiedel, Marcel Leist, Marc Lübberstedt, Fozia Noor, Christian Pellevoisin, Dirk Petersohn, Uwe Pfannenbecker, Kerstin Reisinger, Tzutzuy Ramirez, Barbara Rothen-Rutishauser, Monika Schäfer-Korting, Katrin Zeilinger, Marie-Gabriele Zurich
in Vitro Research Models Collection
Integrated approaches using different in vitro methods in combination with bioinformatics can (i) increase the success rate and speed of drug development; (ii) improve the accuracy of toxicological risk assessment; and (iii) increase our understanding of disease. Three-dimensional (3D) cell culture models are important building blocks of this strategy which has emerged during the last years. The majority of these models are organotypic, i.e., they aim to reproduce major functions of an organ or organ system. This implies in many cases that more than one cell type forms the 3D structure, and often matrix elements play an important role. This …
Moving Beyond The Welfare Standard Of Psychological Well-Being For Nonhuman Primates: The Case Of Chimpanzees, John P. Gluck
Moving Beyond The Welfare Standard Of Psychological Well-Being For Nonhuman Primates: The Case Of Chimpanzees, John P. Gluck
Experimentation Collection
Since 1985, the US Animal Welfare Act and Public Health Service policy have required that researchers using nonhuman primates in biomedical and behavioral research develop a plan ‘‘for a physical environment adequate to promote the psychological well-being of primates.’’ In pursuing this charge, housing attributes such as social companionship, opportunities to express species-typical behavior, suitable space for expanded locomotor activity, and nonstressful relationships with laboratory personnel are dimensions that have dominated the discussion. Regulators were careful not to direct a specific set of prescriptions (i.e., engineering standards) for the attainment of these goals, but to leave the design of the …
Rethinking The Ethics Of Research Involving Nonhuman Animals: Introduction, Tom L. Beauchamp, Hope Ferdowsian, John P. Gluck
Rethinking The Ethics Of Research Involving Nonhuman Animals: Introduction, Tom L. Beauchamp, Hope Ferdowsian, John P. Gluck
Experimentation Collection
No abstract provided.
Creating Knowledge, Volume 7, 2014
Creating Knowledge, Volume 7, 2014
Creating Knowledge
Dear Students, Faculty Colleagues and Friends, It is my great pleasure to introduce the seventh volume of the College of Liberal Arts and Social Sciences’ Creating Knowledge—our undergraduate student scholarship and research journal. First published in 2008, the journal is the outcome of an initiative to enhance and enrich the academic quality of the student experience within the college. Through this publication, the college seeks to encourage students to become actively engaged in creating scholarship and research and gives them a venue for the publication of their essays.
Beginning with the sixth volume of the journal, we instituted a major …
Pathoscope 2.0: A Complete Computational Framework For Strain Identification In Environmental Or Clinical Sequencing Samples., Changjin Hong, Solaiappan Manimaran, Ying Shen, Joseph F Perez-Rogers, Allyson L Byrd, Eduardo Castro-Nallar, Keith A Crandall, William Evan Johnson
Pathoscope 2.0: A Complete Computational Framework For Strain Identification In Environmental Or Clinical Sequencing Samples., Changjin Hong, Solaiappan Manimaran, Ying Shen, Joseph F Perez-Rogers, Allyson L Byrd, Eduardo Castro-Nallar, Keith A Crandall, William Evan Johnson
Computational Biology Institute
BACKGROUND: Recent innovations in sequencing technologies have provided researchers with the ability to rapidly characterize the microbial content of an environmental or clinical sample with unprecedented resolution. These approaches are producing a wealth of information that is providing novel insights into the microbial ecology of the environment and human health. However, these sequencing-based approaches produce large and complex datasets that require efficient and sensitive computational analysis workflows. Many recent tools for analyzing metagenomic-sequencing data have emerged, however, these approaches often suffer from issues of specificity, efficiency, and typically do not include a complete metagenomic analysis framework.
RESULTS: We present PathoScope …
Characteristics And Prediction Of Rna Structure., Hengwu Li, Daming Zhu, Caiming Zhang, Huijian Han, Keith A Crandall
Characteristics And Prediction Of Rna Structure., Hengwu Li, Daming Zhu, Caiming Zhang, Huijian Han, Keith A Crandall
Computational Biology Institute
RNA secondary structures with pseudoknots are often predicted by minimizing free energy, which is NP-hard. Most RNAs fold during transcription from DNA into RNA through a hierarchical pathway wherein secondary structures form prior to tertiary structures. Real RNA secondary structures often have local instead of global optimization because of kinetic reasons. The performance of RNA structure prediction may be improved by considering dynamic and hierarchical folding mechanisms. This study is a novel report on RNA folding that accords with the golden mean characteristic based on the statistical analysis of the real RNA secondary structures of all 480 sequences from RNA …
Paracrine-Rescued Lobulogenesis In Chimeric Outgrowths Comprising Progesterone-Receptor-Null Mammary Epithelium And Redirected Wild-Type Testicular Cells, Robert D. Bruno, Corinne A. Boulanger, Sonia M. Rosenfield, Lisa H. Anderson, John P. Lydon, Gilbert H. Smith
Paracrine-Rescued Lobulogenesis In Chimeric Outgrowths Comprising Progesterone-Receptor-Null Mammary Epithelium And Redirected Wild-Type Testicular Cells, Robert D. Bruno, Corinne A. Boulanger, Sonia M. Rosenfield, Lisa H. Anderson, John P. Lydon, Gilbert H. Smith
Medical Diagnostics & Translational Sciences Faculty Publications
We have previously shown that non-mammary and tumorigenic cells can respond to the signals of the mammary niche and alter their cell fate to that of mammary epithelial progenitor cells. Here we tested the hypothesis that paracrine signals from mammary epithelial cells expressing progesterone receptor (PR) are dispensable for redirection of testicular cells, and that re-directed wild-type testicular-derived mammary cells can rescue lobulogenesis of PR-null mammary epithelium by paracrine signaling during pregnancy. We injected PR-null epithelial cells mixed with testicular cells from wild-type adult male mice into cleared fat-pads of recipient mice. The testicular cells were redirected in vivo to …
The Usefulness Of Systematic Reviews Of Animal Experiments For The Design Of Preclinical And Clinical Studies, Rob B.M. De Vries, Kimberley E. Weaver, Marc T. Avey, Martin Stephens, Emily S. Sena, Marlies Leenaars
The Usefulness Of Systematic Reviews Of Animal Experiments For The Design Of Preclinical And Clinical Studies, Rob B.M. De Vries, Kimberley E. Weaver, Marc T. Avey, Martin Stephens, Emily S. Sena, Marlies Leenaars
Experimentation Collection
The question of how animal studies should be designed, conducted, and analyzed remains underexposed in societal debates on animal experimentation. This is not only a scientific but also amoral question. After all, if animal experiments are not appropriately designed, conducted, and analyzed, the results produced are unlikely to be reliable and the animals have in effect been wasted. In this article, we focus on one particular method to address this moral question, namely systematic reviews of previously performed animal experiments. We discuss how the design, conduct, and analysis of future (animal and human) experiments may be optimized through such systematic …
Consensus Report On The Future Of Animal-Free Systemic Toxicity Testing, Marcel Leist, Nina Hasiwa, Costanza Rovida, Mardas Daneshian, David Basketter, Ian Kimber, Harvey Clewell, Tilman Gocht, Alan Goldberg, Francois Busquet, Anna-Maria Rossi, Michael Schwarz, Martin Stephens, Rob Taalman, Thomas B. Knudsen, James Mckim, Georgina Harris, David Pamies, Thomas Hartung
Consensus Report On The Future Of Animal-Free Systemic Toxicity Testing, Marcel Leist, Nina Hasiwa, Costanza Rovida, Mardas Daneshian, David Basketter, Ian Kimber, Harvey Clewell, Tilman Gocht, Alan Goldberg, Francois Busquet, Anna-Maria Rossi, Michael Schwarz, Martin Stephens, Rob Taalman, Thomas B. Knudsen, James Mckim, Georgina Harris, David Pamies, Thomas Hartung
Experimentation Collection
Since March 2013, animal use for cosmetics testing for the European market has been banned. This requires a renewed view on risk assessment in this field. However, in other fields as well, traditional animal experimentation does not always satisfy requirements in safety testing, as the need for human-relevant information is ever increasing. A general strategy for animal-free test approaches was outlined by the US National Research Council’s vision document for Toxicity Testing in the 21st Century in 2007. It is now possible to provide a more defined roadmap on how to implement this vision for the four principal areas of …
Integrating Societal Perspectives And Values For Improved Stewardship Of A Coastal Ecosystem Engineer, Steven B. Scyphers, J. Steven Picou, Robert D. Brumbaugh, Sean P. Powers
Integrating Societal Perspectives And Values For Improved Stewardship Of A Coastal Ecosystem Engineer, Steven B. Scyphers, J. Steven Picou, Robert D. Brumbaugh, Sean P. Powers
University Faculty and Staff Publications
Oyster reefs provide coastal societies with a vast array of ecosystem services, but are also destructively harvested as an economically and culturally important fishery resource, exemplifying a complex social-ecological system (SES). Historically, societal demand for oysters has led to destructive and unsustainable levels of harvest, which coupled with multiple other stressors has placed oyster reefs among the most globally imperiled coastal habitats. However, more recent studies have demonstrated that large-scale restoration is possible and that healthy oyster populations can be sustained with effective governance and stewardship. However, both of these require significant societal support or financial investment. In our study, …
A System Of Men And Not Of Laws: What Due Process Tells Us About The Deficiencies In Institutional Review Boards, Greer Donley
A System Of Men And Not Of Laws: What Due Process Tells Us About The Deficiencies In Institutional Review Boards, Greer Donley
Articles
Governmental regulation of human subjects research involves unique agency action. It delegates power to non-expert committees, Institutional Review Boards, to decide whether research protocols are "ethical" according to vague federal regulations. Without IRB approval, the protocol cannot be investigated. The empirical evidence regarding this system demonstrates that IRBs render deeply inconsistent and inaccurate outcomes. This Article argues that the lack of due process in the IRB system is to blame for such arbitrary agency action. By juxtaposing the levels of process required for IRB approval or research with FDA new drug approval--agency action involving similar interests--this Article highlights that IRBs …