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Muscle Cells: Mature contractile cells, commonly known as myocytes, that form one of three kinds of muscle. The three types of muscle cells are skeletal (Muscle fibers, Skeletal), cardiac (Myocytes, Cardiac), and smooth (Myocytes, Smooth muscle). They are derived from embryonic (precursor) muscle cells called Myoblasts.

Calcification of Vascular Smooth Muscle Cells and Imaging of Aortic Calcification and Inflammation

1Anesthesia Center for Critical Care Research of the Department of Anesthesia, Critical Care, and Pain Medicine, Massachusetts General Hospital, 2Cardiovascular Research Center and Cardiology Division of the Department of Medicine, Massachusetts General Hospital, 3Cardiovascular Division, Brigham and Women's Hospital, 4Harvard Medical School, 5Department of Anesthesiology, Uniklinik RWTH Aachen, RWTH Aachen University, 6Center for Immunology and Inflammatory Diseases and the Division of Rheumatology, Allergy, and Immunology of the Department of Medicine, Massachusetts General Hospital

JoVE 54017


 Medicine

Extraction and Purification of Polyphenols from Freeze-dried Berry Powder for the Treatment of Vascular Smooth Muscle Cells In Vitro

1Department of Dietetics and Nutrition, University of Arkansas for Medical Sciences, 2Department of Nutrition, Food and Exercise Sciences, Florida State University, 3Center for Advancing Exercise and Nutrition Research on Aging (CAENRA), Florida State University

JoVE 55605


 Chemistry

Tissue Triage and Freezing for Models of Skeletal Muscle Disease

1Division of Pediatric Pathology, Department of Pathology and Laboratory Medicine, Medical College of Wisconsin, 2Department of Physiology and Cell Biology, The Ohio State University, 3Department of Human Nutrition, Foods and Exercise, Virginia Tech, 4Division of Biomedical Informatics, Department of Biostatistics, Department of Computer Science, University of Kentucky, 5Division of Genetics and Genomics, The Manton Center for Orphan Disease Research, Boston Children's Hospital, Harvard Medical School, 6Cure Congenital Muscular Dystrophy, 7Joshua Frase Foundation, 8Department of Rehabilitation Medicine, University of Washington, 9Department of Physiology, University of Arizona

JoVE 51586


 Biology

Isolation of Retinal Arterioles for Ex Vivo Cell Physiology Studies

1Centre for Experimental Medicine, Queen's University of Belfast, 2Centre for Biomedical Sciences (Education), Queen's University of Belfast, 3Department of Pharmaceutical Chemistry and Pharmacognosy, Naresuan University, 4School of Medicine, Dentistry and Biomedical Sciences, Queen's University of Belfast

JoVE 57944


 Biology

Paradigms of Lower Extremity Electrical Stimulation Training After Spinal Cord Injury

1Spinal Cord Injury and Disorders Service, Hunter Holmes McGuire VAMC, 2Department of Physical Medicine and Rehabilitation, Virginia Commonwealth University, 3Deceased, Department of Kinesiology, The University of Georgia, 4Department of Physical Medicine and Rehabilitation, Penn State Milton S. Hershey Medical Center

JoVE 57000


 Behavior

Measurement of Maximum Isometric Force Generated by Permeabilized Skeletal Muscle Fibers

1Department of Orthopaedic Surgery, University of Michigan Medical School, 2Department of Molecular & Integrative Physiology, University of Michigan Medical School, 3Department of Biomedical Engineering, University of Michigan Medical School, 4Department of Surgery, Section of Plastic Surgery, University of Michigan Medical School

JoVE 52695


 Bioengineering

Glucose Uptake Measurement and Response to Insulin Stimulation in In Vitro Cultured Human Primary Myotubes

1CarMeN Laboratory, INSERM U1060, INRA 1397, University of Lyon, 2Department of digestive and bariatric surgery, Obesity Integrated Center, University Hospital of Edouard Herriot, Hospices Civils de Lyon, Lyon 1 University, 3Division of Endocrinology, Diabetes, Hypertension and Nutrition, Department of Clinical Medicine, Faculty of Medicine, University of Geneva

JoVE 55743


 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

Evaluation of Vascular Control Mechanisms Utilizing Video Microscopy of Isolated Resistance Arteries of Rats

1Department of Physical Therapy, Marquette University, 2Medical College of Wisconsin, 3Department of Physiology, Medical College of Wisconsin, 4Graduate Programs of Nurse Anesthesia, Texas Wesleyan University, 5Office of Research, Medical College of Wisconsin

JoVE 56133


 Medicine

Isolation and Immortalization of Patient-derived Cell Lines from Muscle Biopsy for Disease Modeling

1Department of Cell Biology, UT Southwestern Medical Center, 2National Institute of Neurological Disorders and Stroke, National Institute of Health, 3Division of Pediatric Pathology, Department of Pathology and Laboratory Medicine, Medical College of Wisconsin, 4Division of Genetics and Genomics, Boston Children's Hospital

JoVE 52307


 Medicine

Murine Spinotrapezius Model to Assess the Impact of Arteriolar Ligation on Microvascular Function and Remodeling

1Department of Biomedical Engineering, University of Virginia, 2Department of Biomedical Engineering, California Polytechnic State University, 3Office of Animal Welfare, University of Virginia, 4Department of Biomedical Engineering & Institute for Computational Medicine, Johns Hopkins University

JoVE 50218


 Medicine

Isolation of Blood-vessel-derived Multipotent Precursors from Human Skeletal Muscle

1Stem Cell Research Center, Department of Bioengineering and Orthopedic Surgery, University of Pittsburgh, 2Department of Orthopedic Surgery, University of Pittsburgh, 3Nazarbayev University Research and Innovation System, Nazarbayev University, 4Department of Orthopaedic Surgery, UCLA Orthopaedic Hospital and the Orthopaedic Hospital Research Center, University of California at Los Angeles, 5Department of Cell Biology, Erasmus MC Stem Cell Institute, 6OHSU Center for Regenerative Medicine, Oregon Health & Science University, 7Centre for Cardiovascular Science and MRC Centre for Regenerative Medicine, Queen's Medical Research Institute and University of Edinburgh, 8David Geffen School of Medicine and the Orthopaedic Hospital Research Center, University of California at Los Angeles, 9Stem Cell Research Center, Department of Orthopedic Surgery and McGowan Institute for Regenerative Medicine, University of Pittsburgh

JoVE 51195


 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


 Biology

Adapting the Electrospinning Process to Provide Three Unique Environments for a Tri-layered In Vitro Model of the Airway Wall

1Division of Drug Delivery and Tissue Engineering, University of Nottingham, 2Laboratory of Biophysics and Surface Analysis, School of Pharmacy, University of Nottingham, 3Division of Immunology and Allergy, School of Molecular Medical Sciences, University of Nottingham, 4Division of Respiratory Medicine, School of Clinical Sciences, University of Nottingham, 5NIHR Respiratory Biomedical Research Unit, University of Leicester, 6School of Sport, Exercise, and Health Sciences, Loughborough University

JoVE 52986


 Bioengineering

Using TMS to Measure Motor Excitability During Action Observation

JoVE 10270

Source: Laboratories of Jonas T. Kaplan and Sarah I. Gimbel—University of Southern California

Transcranial Magnetic Stimulation (TMS) is a non-invasive brain stimulation technique that involves passing current through an insulated coil placed against the scalp. A brief magnetic field is created by current in the coil, and because of the physical process of induction, this leads to a current in the nearby neural tissue. Depending on the duration, frequency, and magnitude of these magnetic pulses, the underlying neural circuitry can be affected in many different ways. Here, we demonstrate the technique of single-pulse TMS, in which one brief magnetic pulse is used to stimulate the neocortex. One observable effect of TMS is that it can produce muscle twitches when applied over the motor cortex. Due to the somatotopic organization of the motor cortex, different muscles can be targeted depending on the precise placement of the coil. The electrical signals that cause these muscle twitches, called motor evoked potentials, or MEPs, can be recorded and quantified by electrodes placed on the skin over the targeted muscle. The amplitude of MEPs can be interpreted to reflect the underlying excitability of the motor cortex; for example, when the motor cortex is activated, observed MEPs are larger.


 Neuropsychology

Detecting Glycogen in Peripheral Blood Mononuclear Cells with Periodic Acid Schiff Staining

1Department of Biology, Centre for Structural and Functional Genomics, PERFORM Centre, Concordia University, 2Department of Chemistry and Biochemistry, Centre for Structural and Functional Genomics, PERFORM Centre, Concordia University, 3Department of Exercise Science, Centre for Structural and Functional Genomics, PERFORM Centre, Concordia University

JoVE 52199


 Immunology and Infection

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