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 JoVE Clinical and Translational Medicine

Transplantation of Pulmonary Valve Using a Mouse Model of Heterotopic Heart Transplantation

1Tissue Engineering Program and Surgical Research, Nationwide Children's Hospital, 2Cardiothoracic Surgery, Nationwide Children's Hospital, 3Pediatric Surgery, Nationwide Children's Hospital


JoVE 51695

In order to understand the cellular and molecular mechanisms underlying neotissue formation and stenosis development in tissue engineered heart valves, a murine model of heterotopic heart valve transplantation was developed. A pulmonary heart valve was transplanted to recipient using the heterotopic heart transplantation technique.

 JoVE Biology

SIVQ-LCM Protocol for the ArcturusXT Instrument

1Laboratory of Pathology, National Cancer Institute, National Institutes of Health, 2Department of Pathology, University of Michigan


JoVE 51662

SIVQ-LCM is an innovative approach that harnesses a computer algorithm, Spatially Invariant Vector Quantization (SIVQ), to drive the laser capture microdissection (LCM) process. The SIVQ-LCM workflow greatly improves the speed and accuracy of microdissection, with applications in both the research and clinical settings.

 JoVE Bioengineering

Lignin Down-regulation of Zea mays via dsRNAi and Klason Lignin Analysis

1The School of Plant Sciences, University of Arizona, 2Department of Chemical Engineering and Materials Science, DOE Great Lakes Bioenergy Research Center, Michigan State University, 3The Institute for Sustainable and Renewable Resources, The Institute for Advanced Learning and Research, 4Department of Plant, Soil and Microbial Sciences, Michigan State University


JoVE 51340

A double stranded RNA interference (dsRNAi) technique is employed to down-regulate the maize cinnamoyl coenzyme A reductase (ZmCCR1) gene to lower plant lignin content. Lignin down-regulation from the cell wall is visualized by microscopic analyses and quantified by the Klason method. Compositional changes in hemicellulose and crystalline cellulose are analyzed.

 JoVE Bioengineering

Engineering Platform and Experimental Protocol for Design and Evaluation of a Neurally-controlled Powered Transfemoral Prosthesis

1Joint Department of Biomedical Engineering, North Carolina State University & University of North Carolina at Chapel Hill, 2Department of Physical Medicine and Rehabilitation, University of North Carolina School of Medicine, 3Atlantic Prosthetics & Orthotics, LLC


JoVE 51059

Neural-machine interfaces (NMI) have been developed to identify the user's locomotion mode. These NMIs are potentially useful for neural control of powered artificial legs, but have not been fully demonstrated. This paper presented (1) our designed engineering platform for easy implementation and development of neural control for powered lower limb prostheses and (2) an experimental setup and protocol in a laboratory environment to evaluate neurally-controlled artificial legs on patients with lower limb amputations safely and efficiently.

 JoVE Neuroscience

In vivo Imaging of Optic Nerve Fiber Integrity by Contrast-Enhanced MRI in Mice

1Hans Berger Department of Neurology, Jena University Hospital, 2Immunology, Leibniz Institute for Age Research, Fritz Lipmann Institute, Jena, 3Institute of Diagnostic and Interventional Radiology, Medical Physics Group, Jena University Hospital


JoVE 51274

This video illustrates a method, using a clinical 3 T scanner, for contrast-enhanced MR imaging of the naïve mouse visual projection and for repetitive and longitudinal in vivo studies of optic nerve degeneration associated with acute optic nerve crush injury and chronic optic nerve degeneration in knock-out mice (p50KO).

 JoVE Biology

RNA Catalyst as a Reporter for Screening Drugs against RNA Editing in Trypanosomes

1Department of Biochemistry, McGill University, 2Institute of Parasitology, McGill University, 3McGill Centre for Bioinformatics, McGill University


JoVE 51712

A highly sensitive ribozyme-based assay, applicable to high-throughput screening of chemicals targeting the unique process of RNA editing in trypanosomatid pathogens, is described in this paper. Inhibitors can be used as tools for hypothesis-driven analysis of the RNA editing process and ultimately as therapeutics.

 JoVE Neuroscience

Simultaneous Long-term Recordings at Two Neuronal Processing Stages in Behaving Honeybees

1Department of Behavioral Physiology and Sociobiology (Zoology II) Biozentrum, University of Würzburg


JoVE 51750

Simultaneous extracellular long term recordings from two different brain neuropiles or two different anatomical tracts were established in honeybees. These recordings allow the investigation of temporal aspects of neuronal processing across different brain areas at the single neuron as well as at the ensemble level in a behaving animal.

 JoVE Biology

DNA-affinity-purified Chip (DAP-chip) Method to Determine Gene Targets for Bacterial Two component Regulatory Systems

1Physical Biosciences Division, Lawrence Berkeley National Laboratory


JoVE 51715

This video article describes an in vitro microarray based method to determine the gene targets and binding sites for two component system response regulators.

 JoVE Clinical and Translational Medicine

Shrinkage of Dental Composite in Simulated Cavity Measured with Digital Image Correlation

1Minnesota Dental Research Center for Biomaterials and Biomechanics, School of Dentistry, University of Minnesota


JoVE 51191

In order to understand the spatial development of polymerization shrinkage stress in dental resin-composite restorations, Digital Image Correlation was used to provide full-field displacement/strain measurement of restored model glass cavities by correlating images of the restoration taken before and after polymerization.

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