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Generation of Organ-conditioned Media and Applications for Studying Organ-specific Influences on Breast Cancer Metastatic Behavior

1London Regional Cancer Program, London Health Sciences Centre, 2Department of Anatomy & Cell Biology, Schulich School of Medicine & Dentistry, Western University, 3Department of Biochemistry, Schulich School of Medicine & Dentistry, Western University, 4Department of Oncology, Schulich School of Medicine & Dentistry, Western University, 5Lawson Health Research Institute

JoVE 54037


 Medicine

Diagnostic Necropsy and Tissue Harvest

JoVE 10294

Source: Kay Stewart, RVT, RLATG, CMAR; Valerie A. Schroeder, RVT, RLATG. University of Notre Dame, IN

Many animal experiments rely on final data collection time points that are gathered from the harvesting and testing of organs and tissues. The use of appropriate methods for the collection of organs and tissues can impact the quality of the samples and the analysis of the data that is gleaned for the testing of the tissues. The method of euthanasia of the animal can also impact the quality of the samples. This manuscript will outline proper necropsy techniques for rats.


 Lab Animal Research

Fabrication and Validation of an Organ-on-chip System with Integrated Electrodes to Directly Quantify Transendothelial Electrical Resistance

1BIOS Lab on a Chip group, MIRA Institute for Biomedical Technology and Technical Medicine, MESA+ Institute for Nanotechnology and Max Planck Center for Complex Fluid Dynamics, University of Twente, 2Microsystems, Eindhoven University of Technology, 3Applied Stem Cell Technologies, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente

JoVE 56334


 Bioengineering

Understanding Early Organogenesis Using a Simplified In Situ Hybridization Protocol in Xenopus

1Developmental and Stem Cell Biology, Hospital for Sick Children, 2Children's Health Research Institute, University of Western Ontario, 3Department of Physiology and Pharmacology, University of Western Ontario, 4Neurosciences and Mental Health, Hospital for Sick Children, 5Department of Paediatrics, University of Western Ontario

JoVE 51526


 Developmental Biology

Ultrasonography in Experimental Reproductive Investigations on Rats

1Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, 2Institute of Reproductive Genetics, Anhui Medical University, 3Centro Experimental en Investigaciones Biomédica (CEIB), Campus Ciencias de la Salud, Universidad de Murcia, 4Department of Obstetrics and Gynecology, 'Virgen de la Arrixaca' University Clinical Hospital, 5Institute for Biomedical Research of Murcia, IMIB-Arrixaca, 6Anhui Provincial Engineering Technology Research Center for Biopreservation and Artificial Organs

JoVE 56038


 Medicine

Nonhuman Primate Lung Decellularization and Recellularization Using a Specialized Large-organ Bioreactor

1Center for Stem Cell Research and Regenerative Medicine, Tulane University School of Medicine, 2Division of Regenerative Medicine, Tulane National Primate Research Center, 3Department of Microbiology and Immunology, Tulane University School of Medicine, 4Department of Pharmacology, Tulane University School of Medicine

JoVE 50825


 Bioengineering

Sterile Tissue Harvest

JoVE 10298

Source: Kay Stewart, RVT, RLATG, CMAR; Valerie A. Schroeder, RVT, RLATG. University of Notre Dame, IN

In 1959 The 3 R's were introduced by W.M.S. Russell and R.L. Burch in their book The Principles of Humane Experimental Technique. The 3 R's are replacement, reduction, and refinement of the use of animals in research.1 The use of cell lines and tissue cultures that originated from research animals is a replacement technique, as it allows for many experiments to be conducted in vitro. Harvesting tissues and organs for use in cell and tissue cultures requires aseptic technique to avoid contamination of the tissues. Sterile harvest is also necessary for protein and RNA analysis and metabolic profiling of tissues. This manuscript will discuss the process of sterile organ harvest in rats and mice.


 Lab Animal Research

A Behavioral Assay for Mechanosensation of MARCM-based Clones in Drosophila melanogaster

1Department of Biology, College of the Holy Cross, 2School of Medicine, Georgetown University, 3Department of Biochemistry, Giesel School of Medicine, Dartmouth College, 4School of Medicine, Tufts University, 5Transgenomic Inc., 6Department of Molecular, Cell and Cancer Biology, UMass Medical School

JoVE 53537


 Neuroscience

Long Term Intravital Multiphoton Microscopy Imaging of Immune Cells in Healthy and Diseased Liver Using CXCR6.Gfp Reporter Mice

1Department of Medicine III, RWTH University-Hospital Aachen, 2IZKF Aachen Core Facility "Two-Photon Imaging", RWTH University-Hospital Aachen, 3Institute for Laboratory Animal Science & Experimental Surgery, RWTH Aachen University, 4Institute for Pharmacology, RWTH University-Hospital Aachen

JoVE 52607


 Immunology and Infection

Abdominal Exam III: Palpation

JoVE 10089

Source: Alexander Goldfarb, MD, Assistant Professor of Medicine, Beth Israel Deaconess Medical Center, MA

Abdominal palpation, if performed correctly, allows for examination of the large and relatively superficial organs; for a skilled examiner, it allows for assessment of the smaller and deeper structures as well. The amount of information that can be obtained by palpation of the abdominal area also depends on the anatomical characteristics of the patient. For example, obesity might make palpation of internal organs difficult and require that additional maneuvers be performed. Abdominal palpation provides valuable information regarding localization of the problem and its severity, as abdominal palpation identifies the areas of tenderness as well as presence of organomegaly and tumors. The specific focus of palpation is driven by the information collected during history taking and other elements of the abdominal exam. Palpation helps to integrate this information and develop the strategy for subsequent diagnostic steps.


 Physical Examinations II

Isolation and Respiratory Measurements of Mitochondria from Arabidopsis thaliana

1ARC Centre of Excellence in Plant Energy Biology, Department of Animal, Plant and Soil Science, School of Life Science, La Trobe University, 2School of Biological Sciences, Flinders University, 3ARC Centre of Excellence in Plant Energy Biology, University of Western Australia

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JoVE 56627


 JoVE In-Press

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