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Pregnancy Tests: Tests to determine whether or not an individual is pregnant.
 JoVE Developmental Biology

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

 JoVE In-Press

Detecting Estrogenic Ligands in Personal Care Products using a Yeast Estrogen Screen Optimized for the Undergraduate Teaching Laboratory

1Department of Biology, University of the South, 2School of Biological Sciences, Louisiana Tech University, 3School of Medicine, Louisiana State University Health Sciences Center, 4Department of Biology, Furman University, 5Department of Computer Science, Louisiana Tech University, 6Clemson University

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JoVE 55754

 JoVE Behavior

Simultaneous Transcranial Alternating Current Stimulation and Functional Magnetic Resonance Imaging

1Department of Cognitive Neurology, University Medicine Goettingen, 2Department of Neurology, University Medicine Goettingen, 3German Primate Center, Leibniz Institute for Primate Research, 4DFG Center for Nanoscale Microscopy & Molecular Physiology of the Brain (CNMPB)


JoVE 55866

 JoVE Developmental Biology

The Production of Pluripotent Stem Cells from Mouse Amniotic Fluid Cells Using a Transposon System

1Stem Cell and Regenerative Medicine Laboratory, Fondazione Istituto di Ricerca Pediatrica Citta della Speranza, 2Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, 3Stem Cells and Regenerative Medicine Section, Developmental Biology and Cancer Programme, UCL Institute of Child Health and Great Ormond Street Hospital


JoVE 54598

 JoVE Immunology and Infection

Cutaneous Leishmaniasis in the Dorsal Skin of Hamsters: a Useful Model for the Screening of Antileishmanial Drugs

1Program for the Study and Control of Tropical Diseases -PECET-School of Medicine, University of Antioquia, 2School of Agrarian Sciences, University of Antioquia


JoVE 3533

 Science Education: Basic Methods in Cellular and Molecular Biology

The ELISA Method

JoVE Science Education

An enzyme-linked immunosorbent assay (ELISA) is typically performed to detect the presence and/or amount of a target protein of interest within an experimental sample. Detection of the target protein is made possible by antibodies, which make the ELISA an immunoassay. Through a series of incubation and washing steps, these antibodies, which are frequently linked, or conjugated, to an enzyme, will detect protein coating the bottom of a well on a microtiter plate. When exposed to a substrate, antibody-bound enzyme will cause a color change, thereby indicating the presence of the protein-of-interest in the sample. In this video, the theory behind how ELISAs work is explained, including a discussion of both primary and secondary antibody binding and the importance of blocking steps. Theory is followed by practice, as the video progresses to an explanation of the step-by-step procedure. Finally, variations of the standard ELISA such as the sandwich and competitive ELISAs are introduced, and real world applications of this method, such as in over-the-counter pregnancy tests are explained.

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 JoVE Immunology and Infection

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

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 JoVE Immunology and Infection

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

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 JoVE In-Press

A Novel Use of Three-Dimensional High-Frequency Ultrasonography for Early Pregnancy Characterization in the Mouse

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

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JoVE 56207

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 JoVE Behavior

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

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 JoVE In-Press

The 4-vessel Sampling Approach to Integrative Studies of Human Placental Physiology In Vivo

1Department of Obstetrics, Oslo University Hospital, 2Institute of Clinical Medicine, University of Oslo, 3Norwegian Advisory Unit on Women's Health, Oslo University Hospital, 4Department of Fetal Medicine, Oslo University Hospital

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JoVE 55847

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 JoVE Bioengineering

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

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 Science Education: Essentials of Lab Animal Research

Fundamentals of Breeding and Weaning

JoVE Science Education

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.

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