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Pheromones, Human: Chemical substances excreted by humans that elicit behavior or physiological responses from other humans. Perception of these chemical signals may be olfactory or by contact.
 JoVE Neuroscience

Simultaneous Detection of c-Fos Activation from Mesolimbic and Mesocortical Dopamine Reward Sites Following Naive Sugar and Fat Ingestion in Rats

1Behavioral and Cognitive Neuroscience Cluster, Psychology Doctoral Program, The Graduate Center, CUNY, New York, NY, 2Department of Psychology, Queens College, CUNY, Flushing, NY, 3Behavioral and Cognitive Neuroscience Cluster, Psychology Doctoral Program, The Graduate Center, CUNY, Flushing, NY


JoVE 53897

 Science Education: Essentials of Biology 2

Development and Reproduction of the Laboratory Mouse

JoVE Science Education

Successful breeding of the laboratory mouse (Mus musculus) is critical to the establishment and maintenance of a productive animal colony. Additionally, mouse embryos are frequently studied to answer questions about developmental processes. A wide variety of genetic tools now exist for regulating gene expression during mouse embryonic and postnatal development, which can help scientists to understand more about heritable diseases affecting human development. This video provides an introduction to the reproduction and development of mice. In addition to clarifying the terminology used to describe developmental progression, the presentation reviews key stages of the mouse life cycle. First, major development events that take place in utero are described, with special attention given to the unique layout of early rodent embryos. Next, husbandry protocols are provided for postnatal mice, or pups, including the process of weaning, or removal of pups from their mother's cage. Since males and females must be separated at this stage to prevent unscheduled mating, the demonstration also reveals how to determine mouse sex. Subsequently, instructions are given for carrying out controlled mouse breeding, including screening for the copulatory plug, which is useful for precisely timed embryonic development. Finally, the video highlights strategies used to in

 Science Education: Essentials of Biology 1

Yeast Reproduction

JoVE Science Education

Saccharomyces cerevisiae is a species of yeast that is an extremely valuable model organism. Importantly, S. cerevisiae is a unicellular eukaryote that undergoes many of the same biological processes as humans. This video provides an introduction to the yeast cell cycle, and explains how S. cerevisiae reproduces both asexually and sexually Yeast reproduce asexually through a process known as budding. In contrast, yeast sometimes participate in sexual reproduction, which is important because it introduces genetic variation to a population. During environmentally stressful conditions, S. cerevisiae will undergo meiosis and form haploid spores that are released when environmental conditions improve. During sexual reproduction, these haploid spores fuse, ultimately forming a diploid zygote. In the lab, yeast can be genetically manipulated to further understand the genetic regulation of the cell cycle, reproduction, aging, and development. Therefore, scientists study the reproduction of yeast to gain insight into processes that are important in human biology.

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 JoVE Immunology and Infection

Measuring Physiological Responses of Drosophila Sensory Neurons to Lipid Pheromones Using Live Calcium Imaging

1Temasek Life Sciences Laboratory, 2Department of Biological Science, National University of Singapore, 3Bioimaging and Biocomputing Facility, Temasek Life Sciences Laboratory, 4Histology and Light Microscopy Core, Gladstone Institutes, 5Pacific Biosciences Research Center, University of Hawai'i at Mānoa


JoVE 53392

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 Science Education: Essentials of Neuroscience

Calcium Imaging in Neurons

JoVE Science Education

Calcium ions play an integral role in neuron function: They act as intracellular signals that can elicit responses such as altered gene expression and neurotransmitter release from synaptic vesicles. Within the cell, calcium concentration is highly dynamic due to the presence of pumps that selectively transport these ions in response to a variety of signals. Calcium imaging takes advantage of intracellular calcium flux to directly visualize calcium signaling in living neurons.This video begins with an overview of the key reagents used for this technique, known as calcium indicator dyes. The discussion includes an introduction to the commonly used dye Fura-2 and some basic principles behind how both ratiometric and non-ratiometric calcium indicators work. Next, a typical calcium imaging experiment is presented, from preparing the cells and dye to capturing and analyzing the fluorescent images. Finally, several experimental applications of calcium imaging are provided, such as the study of neuronal network activity and sensory processing.

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 JoVE Biology

High Efficiency Differentiation of Human Pluripotent Stem Cells to Cardiomyocytes and Characterization by Flow Cytometry

1Department of Biochemistry, Medical College of Wisconsin, 2Stanford Cardiovascular Institute, Stanford University School of Medicine, 3Department of Anesthesiology, Medical College of Wisconsin, 4Stem Cell and Regenerative Medicine Consortium, LKS Faculty of Medicine, Hong Kong University, 5Division of Cardiology, Johns Hopkins University School of Medicine, 6Cardiovascular Research Center, Biotechnology and Bioengineering Center, Medical College of Wisconsin


JoVE 52010

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 JoVE Biology

Chemically-blocked Antibody Microarray for Multiplexed High-throughput Profiling of Specific Protein Glycosylation in Complex Samples

1Institute for Hepatitis and Virus Research, 2Department of Microbiology and Immunology, Thomas Jefferson University, 3Drexel University College of Medicine, 4Van Andel Research Institute, 5Institute for Hepatitis and Virus Research, Serome Biosciences Inc.


JoVE 3791

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 JoVE Developmental Biology

Human Pluripotent Stem Cell Based Developmental Toxicity Assays for Chemical Safety Screening and Systems Biology Data Generation

1Center of Physiology and Pathophysiology, Institute of Neurophysiology, University of Cologne, 2Department of Biology, University of Konstanz, 3Department of Statistics, Technical University of Dortmund, 4Leibniz Research Centre for Working Environment and Human Factors, Technical University of Dortmund


JoVE 52333

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 JoVE Neuroscience

Modeling Astrocytoma Pathogenesis In Vitro and In Vivo Using Cortical Astrocytes or Neural Stem Cells from Conditional, Genetically Engineered Mice

1Department of Pathology and Laboratory Medicine, University of North Carolina School of Medicine, 2Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, 3Division of Neuropathology, Department of Pathology and Laboratory Medicine, University of North Carolina School of Medicine, 4Curriculum in Genetics and Molecular Biology, University of North Carolina School of Medicine, 5Biological and Biomedical Sciences Program, University of North Carolina School of Medicine, 6Department of Radiation Oncology, Emory University School of Medicine, 7Department of Neurology, Neurosciences Center, University of North Carolina School of Medicine


JoVE 51763

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 JoVE Behavior

Contextual and Cued Fear Conditioning Test Using a Video Analyzing System in Mice

1Division of Systems Medical Science, Institute for Comprehensive Medical Science, Fujita Health University, 2Japan Science and Technology Agency, Core Research for Evolutionary Science and Technology (CREST), 3Center for Genetic Analysis of Behavior, National Institute for Physiological Sciences, National Institutes of Natural Sciences


JoVE 50871

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 JoVE Bioengineering

Novel Atomic Force Microscopy Based Biopanning for Isolation of Morphology Specific Reagents against TDP-43 Variants in Amyotrophic Lateral Sclerosis

1School for Engineering of Matter, Transport and Energy, Arizona State University, 2Department of Neurology, Georgetown University Medical Center, 3Department of Pathology, Georgetown University Medical Center


JoVE 52584

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