1Department of Anatomy and Cell Biology, University of Iowa Carver College of Medicine
Stage-specific isolation of mid-to-late Drosophila follicles is useful for a variety of purposes. Such follicles develop in culture, which allows for genetic and/or pharmacologic manipulations to be coupled with in vitro development assays and live imaging. Additionally, follicles can be used for molecular studies, such as isolating mRNA and protein.
1Zentrum für Molekulare Biologie der Universität Heidelberg (ZMBH), University of Heidelberg
Protein conformation and dynamics are key to understanding the relationship between protein structure and function. Hydrogen exchange coupled with high-resolution mass spectrometry is a versatile method to study the conformational dynamics of proteins as well as characterizing protein-ligand and protein-protein interactions, including contact interfaces and allosteric effects.
1Department of Pharmacology and Physiology, Rutgers New Jersey Medical School, 2Center for Taste and Feeding Behavior, Universite de Bourgogne
The activity of single neurons from adult-aged mice can be studied by dissociating neurons from specific brain regions and using fluorescent membrane potential dye imaging. By testing responses to changes in glucose, this technique can be used to study the glucose sensitivity of adult ventromedial hypothalamic neurons.
JoVE Clinical and Translational Medicine
1Division of Cardiovascular Medicine, Vanderbilt University Medical Center, 2Pulmonary and Critical Care Medicine, Vanderbilt University Medical Center
This article provides a protocol for the echocardiographic assessment of right ventricular size and pulmonary hypertension in mice. Applications include phenotype determination and serial assessment in transgenic and toxin-induced mouse models of cardiomyopathy and pulmonary vascular disease.
1Medical Pharmacology and Physiology, University of Missouri, 2Dalton Cardiovascular Research Center
We present a preparation for visualizing and manipulating calcium signaling in native, intact microvascular endothelium. Endothelial tubes freshly isolated from mouse resistance arteries supplying skeletal muscle retain in vivo morphology and dynamic signaling within and between neighboring cells. Endothelial tubes can be prepared from microvessels of other tissues and organs.
1Wolfson Centre for Age-Related Diseases, King's College London, 2David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology
Neuroblast migration is a fundamental event in postnatal neurogenesis. We describe a protocol for efficient labeling of neuroblasts by in vivo postnatal electroporation and subsequent visualization of their migration using time-lapse imaging of acute brain slices. We include a description for the quantitative analysis of neuroblast dynamics by video tracking.
JoVE Immunology and Infection
1CNRS UMR 7278, IRD198, INSERM U1095, Aix-Marseille Université, 2Department of Molecular Medicine and Medical Biotechnology, University of Naples "Federico II"
Macrophages have long been recognized as a critical component of the innate and adaptive immune responses. The recent explosion of knowledge pertaining to evolutionary, genetic, and biochemical aspects of the interaction between macrophages and microbes has renewed scientific attention to macrophages. This article describes a method to differentiate macrophages from mouse bone marrow.
1Department of Genetics, University of Georgia, 2Department of Cellular Biology, University of Georgia, 3College of Engineering, Architecture and Technology, Oklahoma State University, 4University of Georgia, 5Department of Mathematics, University of California, Davis
This paper describes how an adult zebrafish can be immobilized, intubated, and used for in vivo electrophysiological experiments to allow recordings and manipulation of neural activity in an intact animal.
1Department of Pharmacological and Physiological Science, Saint Louis University School of Medicine
The feeding circuit in Drosophila melanogaster larvae serves a simple yet powerful model that allows changes in feeding rate to be correlated with alterations in the stomatogastric neural circuitry. This circuit is composed of central serotonergic neurons that send projections to the mouth hooks as well as the foregut.
1Arthritis and Clinical Immunology, Oklahoma Medical Research Foundation
A protocol is described that uses Illumina's Infinium assays to perform large-scale genotyping. These assays can reliably genotype millions of SNPs across hundreds of individual DNA samples in three days. Once generated, these genotypes can be used to check for associations with a variety of different diseases or phenotypes.