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Down-Regulation: A negative regulatory effect on physiological processes at the molecular, cellular, or systemic level. At the molecular level, the major regulatory sites include membrane receptors, genes (Gene expression regulation), mRNAs (RNA, Messenger), and proteins.

Two-Dimensional Gel Electrophoresis

JoVE 5686

Two-dimensional gel electrophoresis (2DGE) is a technique that can resolve thousands of biomolecules from a mixture. This technique involves two distinct separation methods that have been coupled together: isoelectric focusing (IEF) and sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE). This physically separates compounds across two axes of a gel by their isoelectric points…

 Biochemistry

Light-sheet Fluorescence Microscopy to Capture 4-Dimensional Images of the Effects of Modulating Shear Stress on the Developing Zebrafish Heart

1Department of Bioengineering, The University of Texas at Arlington, 2Department of Medicine (Cardiology) and Bioengineering, UCLA, 3College of Health Science and Environmental Engineering, Shenzhen Technology University

JoVE 57763

 Bioengineering

CRISPR-Mediated Reorganization of Chromatin Loop Structure

1Department of Dermatology, Program in Epithelial Biology, Stanford University School of Medicine, 2Program in Cancer Biology, Stanford University School of Medicine, 3Canary Center for Cancer Early Detection, Department of Radiology, Stanford University School of Medicine, 4Department of Biology, Bridgewater State University, 5System Biosciences, 6Veterans Affairs Healthcare System

JoVE 57457

 Genetics

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

Use of Single Chain MHC Technology to Investigate Co-agonism in Human CD8+ T Cell Activation

1Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, 2Immunology Programme, Life Sciences Institute, National University of Singapore, 3Emerging Infectious Diseases Program, Duke-NUS Graduate Medical School, 4Singapore Immunology Network, A*STAR, 5NUS Graduate School for Integrative Sciences and Engineering (NGS), National University of Singapore, 6Department of Immunology, Wright-Fleming Institute, Imperial College London

JoVE 59126

 Immunology and Infection

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

 Developmental Biology

Two-dimensional Gel Electrophoresis Coupled with Mass Spectrometry Methods for an Analysis of Human Pituitary Adenoma Tissue Proteome

1Key Laboratory of Cancer Proteomics of Chinese Ministry of Health, Xiangya Hospital, Central South University, 2Hunan Engineering Laboratory for Structural Biology and Drug Design, Xiangya Hospital, Central South University, 3State Local Joint Engineering Laboratory for Anticancer Drugs, Xiangya Hospital, Central South University, 4The State Key Laboratory of Medical Genetics, Central South University

JoVE 56739

 Cancer Research

Preparation of Mitochondria from Ovarian Cancer Tissues and Control Ovarian Tissues for Quantitative Proteomics Analysis

1Key Laboratory of Cancer Proteomics of Chinese Ministry of Health, Xiangya Hospital, Central South University, 2Hunan Engineering Laboratory for Structural Biology and Drug Design, Xiangya Hospital, Central South University, 3State Local Joint Engineering Laboratory for Anticancer Drugs, Xiangya Hospital, Central South University, 4National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, 5Department of Obstetrics and Gynecology, Xiangya Hospital, Central South University

Video Coming Soon

JoVE 60435

 JoVE In-Press

Modified PASM-Masson Staining in a Renal Biopsy

1Department of Pathology, The Second Affiliated Hospital of Southern University of Science and Technology, Shenzhen Third People's Hospital, National Clinical Research Center for Infectious Diseases, 2Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, School of Medicine of Southern University of Science and Technology

Video Coming Soon

JoVE 59669

 JoVE In-Press

Enhancing the Engraftment of Human Induced Pluripotent Stem Cell-derived Cardiomyocytes via a Transient Inhibition of Rho Kinase Activity

1Department of Biomedical Engineering, School of Medicine, School of Engineering, University of Alabama at Birmingham, 2Division of Cardiovascular Diseases, School of Medicine, School of Engineering, University of Alabama at Birmingham, 3Department of Cardiac Surgery, The Second Xiangya Hospital of Central South University

JoVE 59452

 Biochemistry

Identification of OTX1 and OTX2 As Two Possible Molecular Markers for Sinonasal Carcinomas and Olfactory Neuroblastomas

1Department of Medicine and Surgery, University of Insubria, 2Department of Surgical and Morphological Science, University of Insubria, 3Department of Biotechnology and Life Science, University of Insubria

JoVE 56880

 Cancer Research

Micro-dissection of Enamel Organ from Mandibular Incisor of Rats Exposed to Environmental Toxicants

1Institut National de la Santé et Recherche Médicale (INSERM) UMRS 1138, Paris-Diderot University, Pierre & Marie Curie University, Paris-Descartes University, Laboratory of Molecular Oral Pathophysiology, Cordeliers Research Centre, 2Unit of Formation and Research (UFR) of Odontology, Paris-Diderot University

JoVE 57081

 Medicine

An Automated Rapid Iterative Negative Geotaxis Assay for Analyzing Adult Climbing Behavior in a Drosophila Model of Neurodegeneration

1Research Center for Translational Medicine, Tongji University School of Medicine, 2Key Laboratory of Arrhythmias of the Ministry of Education of China, Shanghai East Hospital, Tongji University School of Medicine, 3Department of Anatomy and Neurobiology, Tongji University School of Medicine, 4Shanghai Advanced Research Institute, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 5Sino-Danish College, University of Chinese Academy of Sciences, Chinese Academy of Sciences

JoVE 56507

 Behavior
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