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Heme Oxygenase-1: A ubiquitous stress-responsive enzyme that catalyzes the oxidative cleavage of Heme to yield Iron; Carbon monoxide; and Biliverdin.
 JoVE Biology

Bioluminescence Imaging of Heme Oxygenase-1 Upregulation in the Gua Sha Procedure

1Department of Radiology, Massachusetts General Hospital, Harvard Medical School, 2Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, 3Gastrointestinal Unit, Massachusetts General Hospital, Harvard Medical School, 4Department of Medicine, Massachusetts General Hospital, Harvard Medical School, 5Center for biotechnology and Informatics, The Methodist Hospital Research Institute, 6Department of Radiology, The Methodist Hospital, Weill Cornell Medical College, 7Bejing University of Chinese Medicine, 8Department of Health Technology and Informatics, The Hong Kong Polytechnic University, 9Department of Radiology, Brigham and Women's Hospital, Harvard Medical School


JoVE 1385

 JoVE Medicine

Ischemic Tissue Injury in the Dorsal Skinfold Chamber of the Mouse: A Skin Flap Model to Investigate Acute Persistent Ischemia

1Department of Plastic Surgery and Hand Surgery, Klinikum rechts der Isar, Technische Universität München, 2Department of Plastic, Reconstructive, Aesthetic and Hand Surgery, University Hospital of Basel, 3Institute for Clinical and Experimental Surgery, University of Saarland, 4Division of Plastic and Hand Surgery, University Hospital Zurich


JoVE 51900

 JoVE Immunology and Infection

Induction of Murine Intestinal Inflammation by Adoptive Transfer of Effector CD4+CD45RBhigh T Cells into Immunodeficient Mice

1Center for Gastrointestinal Biology and Disease, University of North Carolina at Chapel Hill, 2Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, 3Department of Genetics, University of North Carolina at Chapel Hill, 4Curriculum in Genetics and Molecular Biology, University of North Carolina at Chapel Hill


JoVE 52533

 JoVE Immunology and Infection

Phenotypic Characterization of Macrophages from Rat Kidney by Flow Cytometry

1Renal, Vascular and Diabetes Research Lab, IIS-Fundaciòn Jiménez Dìaz, Autonoma University, 2Department of Physiology, Faculty of Medicine, Complutense University, 3Department of Immunology, Centro Nacional de Microbiologìa, Instituto de Salud Carlos III (ISCIII)


JoVE 54599

 JoVE In-Press

Analysis of the Ambient Particulate Matter-induced Chromosomal Aberrations Using an In Vitro System

1Department of Occupational and Environmental Health, University of Arkansas for Medical Sciences, 2Department of Environmental Health Sciences, University of Alabama at Birmingham, 3Division of Radiation Health, University of Arkansas for Medical Sciences

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JoVE 54969

 JoVE Medicine

Transplantation into the Anterior Chamber of the Eye for Longitudinal, Non-invasive In vivo Imaging with Single-cell Resolution in Real-time

1Diabetes Research Institute, University of Miami Miller School of Medicine, 2Department of Surgery, University of Miami Miller School of Medicine, 3Department of Medicine, University of Miami Miller School of Medicine, 4Department of Physiology & Biophysics, University of Miami Miller School of Medicine, 5The Rolf Luft Research Center for Diabetes and Endocrinology, Karolinska Institutet


JoVE 50466

 JoVE Immunology and Infection

Cecal Ligation and Puncture-induced Sepsis as a Model To Study Autophagy in Mice

1Department of Medicine, Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, 2Department of Medicine, Renal Division, Brigham and Women's Hospital, Harvard Medical School, 3First Department of Critical Care Medicine and Pulmonary Services, University of Athens Medical School, Evangelismos Hospital, Athens, Greece


JoVE 51066

 JoVE Medicine

Implantation of a Carotid Cuff for Triggering Shear-stress Induced Atherosclerosis in Mice

1European Institute for Molecular Imaging, Westfälische Wilhelms-University Münster, 2British Heart Foundation Cardiovascular Sciences Unit, Imperial College London, 3Department of Bioengineering, Imperial College London, 4Biomedical Engineering, Eindhoven University of Technology


JoVE 3308

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 JoVE Cancer Research

Next Generation Sequencing for the Detection of Actionable Mutations in Solid and Liquid Tumors

1Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, 2Division of Hematology/Oncology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, 3Abramson Cancer Center


JoVE 52758

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 Science Education: Essentials of Analytical Chemistry

Ultraviolet-Visible (UV-Vis) Spectroscopy

JoVE Science Education

Source: Laboratory of Dr. B. Jill Venton - University of Virginia

Ultraviolet-visible (UV-Vis) spectroscopy is one of the most popular analytical techniques because it is very versatile and able to detect nearly every molecule. With UV-Vis spectroscopy, the UV-Vis light is passed through a sample and the transmittance of light by a sample is measured. From the transmittance (T), the absorbance can be calculated as A=-log (T). An absorbance spectrum is obtained that shows the absorbance of a compound at different wavelengths. The amount of absorbance at any wavelength is due to the chemical structure of the molecule. UV-Vis can be used in a qualitative manner, to identify functional groups or confirm the identity of a compound by matching the absorbance spectrum. It can also be used in a quantitative manner, as concentration of the analyte is related to the absorbance using Beer's Law. UV-Vis spectroscopy is used to quantify the amount of DNA or protein in a sample, for water analysis, and as a detector for many types of chromatography. Kinetics of chemical reactions are also measured with UV-Vis spectroscopy by taking repeated UV-Vis measurements over time. UV-Vis measurements are generally taken with a spectrophotometer. UV-Vis is also a very popular detector for other analytical tech

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 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

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