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Fallopian Tubes: A pair of highly specialized muscular canals extending from the Uterus to its corresponding Ovary. They provide the means for Ovum collection, and the site for the final maturation of gametes and Fertilization. The fallopian tube consists of an interstitium, an isthmus, an ampulla, an infundibulum, and fimbriae. Its wall consists of three histologic layers: serous, muscular, and an internal mucosal layer lined with both ciliated and secretory cells.
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Blood Withdrawal I

JoVE 10246

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

Blood collection is a common requirement for research studies that involve mice and rats. The method of blood withdrawal in mice and rats is dependent upon the volume of blood needed, the frequency of the sampling, the health status of the animal to be bled, and the skill level of the technician.1 All methods discussed-retro-orbital sinus bleeds, initial tail snip bleeds, and intracardiac bleeds-require the use of a general anesthesia.


 Lab Animal Research

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Biofuels: Producing Ethanol from Cellulosic Material

JoVE 10014

Source: Laboratories of Margaret Workman and Kimberly Frye - Depaul University

In this experiment, cellulosic material (such as corn stalks, leaves, grasses, etc.) will be used as a feedstock for the production of ethanol. The cellulosic material is first pretreated (ground and heated), digested with enzymes, and then fermented with yeast. Ethanol production is monitored using an ethanol probe. The experiment can be extended to optimize ethanol production by varying the feedstock used, pretreatment conditions, enzyme variation, yeast variation, etc. An alternative method of monitoring the reaction is to measure the carbon dioxide produced (using a gas sensor) instead of the ethanol. As a low-tech alternative, glucose meters (found in any drug store) can be used to monitor the glucose during the process, if an ethanol probe or carbon dioxide gas sensor is not available. With an increased emphasis on ‘inquiry-based learning”, scientific probes are becoming more popular. Handheld devices like the Vernier Lab Quest used in conjunction with a variety of probes (such as those for conductivity, dissolved oxygen, voltage, and more) allow for less focus on collecting data and/or making graphs and more on analyzing the data and making predictions. Anothe


 Environmental Science

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Brain Membrane Fractionation: An Ex Vivo Approach to Assess Subsynaptic Protein Localization

1Unitat de Farmacologia, Departament Patologia i Terapèutica Experimental, Facultat de Medicina, IDIBELL, Universitat de Barcelona, L'Hospitalet de Llobregat, 2Institut de Neurociències, Universitat de Barcelona, 3Center for Neurosciences of Coimbra, Institute of Biochemistry, Faculty of Medicine, University of Coimbra

JoVE 55661


 Biochemistry

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Method for Identifying Small Molecule Inhibitors of the Protein-protein Interaction Between HCN1 and TRIP8b

1Davee Department of Neurology and Clinical Neurosciences, Feinberg School of Medicine, Northwestern University, 2Center for Molecular Innovation and Drug Discovery, Northwestern University, 3Department of Pharmacology, Feinberg School of Medicine, Northwestern University, 4High Throughput Analysis Laboratory, Department of Molecular Biosciences, Northwestern University, 5Department of Physiology, Feinberg School of Medicine, Northwestern University

JoVE 54540


 Biochemistry

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Preparation and In Vitro Characterization of Magnetized miR-modified Endothelial Cells

1Reference and Translation Center for Cardiac Stem Cell Therapy (RTC), Department of Cardiac Surgery, University of Rostock, 2Physikalisch-Technische Bundesanstalt, 3Department of Radiology and Neuroradiology, Ernst-Moritz-Arndt-University Greifswald, 4Electron Microscopy Center, University of Rostock

JoVE 55567


 Medicine

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Isolation and Preparation of Bacterial Cell Walls for Compositional Analysis by Ultra Performance Liquid Chromatography

1Department of Bioengineering, Stanford University, 2Department of Molecular Biology and Laboratory for Molecular Infection Medicine Sweden, Umeå Centre for Microbial Research, Umeå University, 3Campus de Cantoblanco, Universidad Autonoma de Madrid, 4Department of Microbiology and Immunology, Stanford University School of Medicine

JoVE 51183


 Chemistry

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Establishment of Cancer Stem Cell Cultures from Human Conventional Osteosarcoma

1Department of Surgery and Translational Medicine (DCMT), University of Florence, 2Neurofarba Department, University of Florence, 3Department of Traumatology and General Orthopedics, Azienda Ospedaliera Universitaria Careggi

JoVE 53884


 Cancer Research

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Separation of Spermatogenic Cell Types Using STA-PUT Velocity Sedimentation

1Department of Cell and Developmental Biology, University of Pennsylvania, 2Biomedical Graduate Studies, University of Pennsylvania, 3Department of Animal Biology and Center for Animal Transgenesis and Germ Cell Research, University of Pennsylvania, 4Department of Genetics, University of Pennsylvania, 5Department of Biology, University of Pennsylvania

JoVE 50648


 Biology

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Recombinant Collagen I Peptide Microcarriers for Cell Expansion and Their Potential Use As Cell Delivery System in a Bioreactor Model

1Department Tissue Engineering and Regenerative Medicine, University Hospital Wuerzburg, 2Translational Center Regenerative Therapies (TLC-RT), Fraunhofer Institute for Silicate Research ISC, 3Fujifilm Manufacturing Europe B.V.

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JoVE 57363


 JoVE In-Press

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