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Calcium Signaling: Signal transduction mechanisms whereby calcium mobilization (from outside the cell or from intracellular storage pools) to the cytoplasm is triggered by external stimuli. Calcium signals are often seen to propagate as waves, oscillations, spikes, sparks, or puffs. The calcium acts as an intracellular messenger by activating calcium-responsive proteins.

Mesenteric Artery Contraction and Relaxation Studies Using Automated Wire Myography

1Julius L. Chambers Biomedical/Biotechnology Research Institute, North Carolina Central University, Durham, 2Department of Biology, North Carolina Central University, Durham, 3Department of Physiology & Pharmacology and Hypertension & Vascular Research Center, Wake Forest University School of Medicine

JoVE 3119


 Medicine

Visualizing Cytoplasmic Flow During Single-cell Wound Healing in Stentor coeruleus

1Physiology Course, Marine Biological Laboratory, 2Department of Biochemistry & Biophysics, University of California San Francisco, 3Department of Physics and Astronomy, Vrije Universiteit Amsterdam, 4Max Planck Institute of Molecular Cell Biology and Genetics, 5Department of Physics, University of Illinois Urbana-Champaign

JoVE 50848


 Biology

Assessment of Calcium Sparks in Intact Skeletal Muscle Fibers

1Department of Surgery, Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, 2Department of Physiology and Cell Biology, Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, 3Department of Molecular Biophysics and Physiology, Rush University Medical Center, 4Department of Internal Medicine, Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center

JoVE 50898


 Biology

Calcium Imaging in Neurons

JoVE 5203

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.


 Neuroscience

Immunohistochemical and Calcium Imaging Methods in Wholemount Rat Retina

1Department of Neurobiology, University of California, Los Angeles, 2Veterans Administration Greater Los Angeles Healthcare System, 3Departments of Physiology & Biophysics and Ophthalmology & Visual Sciences, Dalhousie University, 4Departments of Neurobiology and Medicine, Jules Stein Eye Institute, CURE-Digestive Diseases Research Center, David Geffen School of Medicine, University of California, Los Angeles

JoVE 51396


 Neuroscience

Measuring Spatial and Temporal Ca2+ Signals in Arabidopsis Plants

1Department of Horticulture and Landscape Architecture, Purdue University, 2Bindley Bioscience Center, Purdue University, 3Institute of Biotechnology, Jiangsu Academy of Agricultural Sciences, 4College of Environmental & Resource Science, Zhejiang University, 5Dryland Agriculture Research Centre, Shanxi Academy of Agricultural Sciences, 6Shanghai Center for Plant Stress Biology, Chinese Academy of Sciences

JoVE 51945


 Biology

Live Imaging of the Ependymal Cilia in the Lateral Ventricles of the Mouse Brain

1Department of Pharmacology and Experimental Therapeutics, University of Toledo, College of Pharmacy and Pharmaceutical Sciences, 2Life Sciences Institute, University of Michigan, 3Department of Biomedical & Pharmaceutical Sciences, Chapman University, School of Pharmacy, Rinker Health Science campus

JoVE 52853


 Neuroscience

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

JoVE 56639


 Medicine

Anatomically Inspired Three-dimensional Micro-tissue Engineered Neural Networks for Nervous System Reconstruction, Modulation, and Modeling

1Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, 2Center for Brain Injury & Repair, Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, 3Center for Neurotrauma, Neurodegeneration & Restoration, Michael J. Crescenz Veterans Affairs Medical Center, 4School of Biomedical Engineering, Drexel University

JoVE 55609


 Neuroscience

High Resolution Quantitative Synaptic Proteome Profiling of Mouse Brain Regions After Auditory Discrimination Learning

1Leibniz Institute for Neurobiology (LIN), 2Institute of Experimental Internal Medicine, Medical School, Otto von Guericke University Magdeburg, 3Institute of Pharmacology and Toxicology, Medical School, Otto von Guericke University

JoVE 54992


 Neuroscience

Whole-cell Patch-clamp Recordings of Isolated Primary Epithelial Cells from the Epididymis

1School of Life Science and Technology, ShanghaiTech University, 2Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 3University of Chinese Academy of Sciences, 4Shanghai Institute for Advanced Immunochemical Studies, ShanghaiTech University

JoVE 55700


 Developmental Biology

Assessment of the Cytotoxic and Immunomodulatory Effects of Substances in Human Precision-cut Lung Slices

1Fraunhofer Institute for Toxicology and Experimental Medicine (ITEM), German Center for Lung Research (DZL), Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Member of REBIRTH Cluster of Excellence, 2Institute for Pathology, Hannover Medical School, German Center for Lung Research (DZL), Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), 3Division of Thoracic and Vascular Surgery, Klinikum Region Hannover (KRH), 4Department of Cardiothoracic, Transplantation and Vascular Surgery (HTTG), Hannover Medical School, German Center for Lung Research (DZL), Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), 5Institute of Pharmacology and Toxicology, RWTH Aachen University, 6Institute for Immunology, Hannover Medical School

JoVE 57042


 Immunology and Infection

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