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Pregnancy, Twin: The condition of carrying Twins simultaneously.

Guide Wire Assisted Catheterization and Colored Dye Injection for Vascular Mapping of Monochorionic Twin Placentas

1Division of Pediatric and Fetal Surgery, Department of Surgery, University of California, San Francisco, 2Department of Pathology, University of Alberta, 3Department of Obstretics and Gynecology, University of California, San Francisco, 4Department of Radiology, University of California, San Francisco

JoVE 2837


 Medicine

Contractility Measurements of Human Uterine Smooth Muscle to Aid Drug Development

1Harris-Wellbeing Preterm Birth Research Centre, Department of Cellular and Molecular Physiology, Institute of Translational Medicine, University of Liverpool, 2School of Biomedical Sciences, The University of Queensland, 3Faculty of Chemistry, Institute of Biological Chemistry, University of Vienna, 4Institute for Molecular Bioscience, University of Queensland, 5Center for Physiology and Pharmacology, Medical University of Vienna

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JoVE 56639


 JoVE In-Press

Instrumentation of Near-term Fetal Sheep for Multivariate Chronic Non-anesthetized Recordings

1Département de sciences cliniques, CHUV, Université de Montréal, St-Hyacinthe, QC, 2Département d'obstetriques et de gynécologie, CHU Ste-Justine Research Centre, Université de Montréal, 3Département de neurosciences, CHU Ste-Justine Centre de recherche, Université de Montréal, 4Centre de recherche en reproduction animale (CRRA), Université de Montréal, St-Hyacinthe, QC

JoVE 52581


 Developmental Biology

Fetal Echocardiography and Pulsed-wave Doppler Ultrasound in a Rabbit Model of Intrauterine Growth Restriction

1Division Woman and Child, Department Women, University Hospitals Leuven, 2The Ritchie Centre, Monash Institute of Medical Research, Department of Obstetrics and Gynaecology, Monash University, Victoria, Australia, 3Department of Cardiovascular Sciences, Katholieke Universiteit Leuven, 4Fetal and Perinatal Medicine Research Group, Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS), 5Maternal-Fetal Medicine Department, ICGON, Hospital Clínic, Universitat de Barcelona, Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER)

JoVE 50392


 Medicine

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A Novel Method for Involving Women of Color at High Risk for Preterm Birth in Research Priority Setting

1School of Nursing, University of California, San Francisco, 2UCSF California Preterm Birth Initiative, University of California, San Francisco, 3School of Medicine, University of California, San Francisco, 4San Francisco Black Infant Health Program, 5Homeless Prenatal Program

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JoVE 56220


 JoVE In-Press

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Isolation of Leukocytes from the Human Maternal-fetal Interface

1Perinatology Research Branch, NICHD/NIH/DHHS, 2Department of Obstetrics and Gynecology, University of Michigan, 3Department of Epidemiology and Biostatistics, Michigan State University, 4Department of Molecular Obstetrics and Genetics, Wayne State University, 5Department of Obstetrics and Gynecology, Wayne State University School of Medicine, 6Department of Immunology and Microbiology, Wayne State University School of Medicine

JoVE 52863


 Immunology and Infection

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Isolation of Leukocytes from the Murine Tissues at the Maternal-Fetal Interface

1Department of Obstetrics & Gynecology, Wayne State University School of Medicine, 2School of Paediatrics and Reproductive Health, Research Centre for Reproductive Health, the Robinson Research Institute, The University of Adelaide, 3Department of Immunology & Microbiology, Wayne State University School of Medicine, 4Perinatology Research Branch, NICHD/NIH/DHHS

JoVE 52866


 Immunology and Infection

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A Novel Use of Three-dimensional High-frequency Ultrasonography for Early Pregnancy Characterization in the Mouse

1Devision of Repreoductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Baylor College of Medicine, 2Mouse Phenotyping Core, Baylor College of Medicine, 3Reproductive and Developmental Biology Laboratory, National Institute of Environmental Health Sciences, 4Department of Molecular and Cellular Biology, Baylor College of Medicine

JoVE 56207


 Developmental Biology

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Moderate Prenatal Alcohol Exposure and Quantification of Social Behavior in Adult Rats

1Department of Psychology, University of New Mexico, 2Department of Neurosciences, University of New Mexico, 3Department of Psychiatry and Behavioral Sciences, University of New Mexico, 4Canadian Centre for Behavioural Neuroscience, University of Lethbridge

JoVE 52407


 Behavior

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Moving Upwards: A Simple and Flexible In Vitro Three-dimensional Invasion Assay Protocol

1Department of Biomedical Engineering, University of Minnesota - Twin Cities, 2Stem Cell Institute, University of Minnesota - Twin Cities, 3Masonic Cancer Center, University of Minnesota - Twin Cities, 4Lillehei Heart Institute, University of Minnesota - Twin Cities, 5Institute for Engineering in Medicine, University of Minnesota - Twin Cities, 6Department of Biology, Jackson State University

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JoVE 56568


 JoVE In-Press

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Determination of the Transport Rate of Xenobiotics and Nanomaterials Across the Placenta using the ex vivo Human Placental Perfusion Model

1Department of Obstetrics, Perinatal Pharmacology, University Hospital Zurich, 2Laboratory for Materials - Biology Interactions, EMPA Swiss Federal Laboratories for Materials Testing and Research, 3Graduate School for Cellular and Biomedical Sciences, University of Bern

JoVE 50401


 Bioengineering

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Fundamentals of Breeding and Weaning

JoVE 10293

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

Millions of mice and rats are bred for use in biomedical research each year. Worldwide, there are several large commercial breeding facilities that supply mice to research laboratories, but many facilities choose to also breed mice and rats in-house to reduce costs and increase research options. When breeding in the animal facility, researchers are able to manipulate the genetics of the animals, time the pregnancies to meet the needs of the research, and work with embryos and neonates as required. Mice and rats can be bred in a variety of schemes and methods. Technical procedures, such as the use of vaginal cytology, visualization of the vaginal area, and observation of copulatory plugs, have been developed to assist with the synchronization of breeding to correspond to research requirements. This manuscript is an overview of the basic fundamentals of mouse and rat breeding and technical procedures used. More detailed descriptions of the complex breeding schemes, and the full description of the methods for vaginal cytology, are available in the list of references.


 Lab Animal Research

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Human Placental and Decidual Organ Cultures to Study Infections at the Maternal-fetal Interface

1Benioff Children’s Hospital, 2Department of Pathology, University of California, San Francisco, 3Center for Reproductive Sciences and Department of Obstetrics, University of California, San Francisco, 4Program in Microbial Pathogenesis and Host Defense, University of California, San Francisco, 5Biomedical Sciences Program, University of California, San Francisco

JoVE 54237


 Immunology and Infection

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Kinetic Analysis of Vasculogenesis Quantifies Dynamics of Vasculogenesis and Angiogenesis in Vitro

1Department of Cellular & Integrative Physiology, Indiana University School of Medicine, 2Herman B Wells Center for Pediatric Research, 3Indiana Center for Biological Microscopy, 4Department of Medicine, Indiana University School of Medicine, 5Department of Pediatrics, Indiana University School of Medicine, 6Department of Microbiology and Immunology, Indiana University School of Medicine, 7Indiana University Simon Cancer Center, Indiana University School of Medicine

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JoVE 57044


 JoVE In-Press

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Lens-free Video Microscopy for the Dynamic and Quantitative Analysis of Adherent Cell Culture

1CEA, LETI, DTBS, LISA, Université Grenoble Alpes, 2CEA, LETI, DTBS, LBAM, Université Grenoble Alpes, 3CEA, INSERM, BIG, Université Grenoble Alpes, 4CNRS, FR CNRS 3425, 5CNRS, UMR 144, Molecular Mechanisms of Intracellular Transport, PSL Research University, Institut Curie, 6TIMC-IMAG

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JoVE 56580


 JoVE In-Press

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Schlenk Lines Transfer of Solvents

JoVE 5679

Source: Hsin-Chun Chiu and Tyler J. Morin, laboratory of Dr. Ian Tonks—University of Minnesota Twin Cities

Schlenk lines and high vacuum lines are both used to exclude moisture and oxygen from reactions by running reactions under a slight overpressure of inert gas (usually N2 or Ar) or under vacuum. Vacuum transfer has been developed as a method separate solvents (other volatile reagents) from drying agents (or other nonvolatile agents) and dispense them to reaction or storage vessels while maintaining an air-free environment. Similar to thermal distillations, vacuum transfer separates solvents by vaporizing and condensing them in another receiving vessel; however, vacuum transfers utilize the low pressure in the manifolds of Schlenk and high vacuum lines to lower boiling points to room temperature or below, allowing for cryogenic distillations. This technique can provide a safer alternative to thermal distillation for the collection of air- and moisture-free solvents. After the vacuum transfer, the water content of the collected solvent can be tested quantitatively by Karl Fischer titration, qualitatively by titration with a Na/Ph2CO solution, or by 1H NMR spectroscopy.


 Organic Chemistry

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