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    Protocols in Current Issue
    Amplex Red Assay for Measuring Hydrogen Peroxide Production from Caenorhabditis elegans
    Authors:  Ozgur Karakuzu, Melissa R. Cruz, Yi Liu and Danielle A. Garsin, date: 11/05/2019, view: 89, Q&A: 0
    [Abstract] Reagents such as Amplex® Red have been developed for detecting hydrogen peroxide (H2O2) and are used to measure the release of H2O2 from biological samples such as mammalian leukocytes undergoing the oxidative burst. Caenorhabditis elegans is commonly used as a model host in the study ...
    Oxygen Consumption Measurements in Caenorhabditis elegans Using the Seahorse XF24
    Authors:  Suraiya Haroon and Marc Vermulst, date: 07/05/2019, view: 747, Q&A: 0
    [Abstract] Mitochondria generate 90% of the energy required to sustain life. As a result, loss of mitochondrial function compromises almost every facet of human physiology. Accordingly, most mitochondrial diseases tend to present themselves as complex, multi-systemic disorders that can be difficult to diagnose. Depending on the severity of the mitochondrial ...
    Measurement of Respiration Rate in Live Caenorhabditis elegans
    Authors:  Li Fang Ng and Jan Gruber, date: 05/20/2019, view: 1429, Q&A: 0
    [Abstract] Mitochondrial function and dysfunction are at the core of aging and involved in many age-dependent diseases. Rate of oxygen consumption is a measure of mitochondrial function and energy production rate. The nematode Caenorhabditis elegans (C. elegans) offers an opportunity to study “living” mitochondria without the need for ...
    Blinded Visual Scoring of Images Using the Freely-available Software Blinder
    Authors:  Steven D. Cothren, Joel N. Meyer and Jessica H. Hartman, date: 12/05/2018, view: 1575, Q&A: 0
    [Abstract] In nearly all subfields of biomedical sciences, there are phenotypes that are currently classified by expert visual scoring. In research applications, these classifications require the experimenter to be blinded to the treatment group in order to avoid unintentional bias in scoring. Currently, many labs either use laborious and tedious methods to ...
    6-hydroxydopamine (6-OHDA) Oxidative Stress Assay for Observing Dopaminergic Neuron Loss in Caenorhabditis elegans
    Authors:  Sarah-Lena Offenburger and Anton Gartner, date: 09/20/2018, view: 2157, Q&A: 0
    [Abstract] The nematode Caenorhabditis elegans is a powerful genetic model that can be used to investigate neuronal death. Research using C. elegans has been crucial to characterize cell death programmes that are conserved in mammals. Many neuronal signaling components, such as those mediating dopaminergic neurotransmission, are preserved ...
    Assessment of Caenorhabditis elegans Competitive Fitness in the Presence of a Bacterial Parasite
    Authors:  McKenna. J. Penley and Levi T. Morran, date: 08/20/2018, view: 2010, Q&A: 0
    [Abstract] Accurate measurements of an organism’s fitness are crucial for measuring evolutionary change. Methods of fitness measurement are most accurate when incorporating an individual’s survival and fecundity, as well as accounting for any ecological interactions or environmental effects experienced by the organism. Here, we describe a protocol for ...
    Measurement of ROS in Caenorhabditis elegans Using a Reduced Form of Fluorescein
    Authors:  Shaarika Sarasija and Kenneth R. Norman, date: 04/05/2018, view: 2642, Q&A: 0
    [Abstract] Oxidative stress is implicated in the pathogenesis of various neurodegenerative diseases, including Alzheimer’s disease. Oxidative stress is a result of a disruption of the equilibrium between antioxidants and oxidants, in favor of oxidants. Since mitochondria are major sites of production and reduction of reactive oxygen species (ROS), ...
    Analysis of Mitochondrial Structure in the Body Wall Muscle of Caenorhabditis elegans
    Authors:  Shaarika Sarasija and Kenneth R. Norman, date: 04/05/2018, view: 3528, Q&A: 0
    [Abstract] Mitochondrial function is altered in various pathologies, highlighting the crucial role mitochondria plays in maintaining cellular homeostasis. Mitochondrial structure undergoes constant fission and fusion in response to changing cellular environment. Due to this, analyzing mitochondrial structure could provide insight into the physiological state ...
    Synthetic Genetic Interaction (CRISPR-SGI) Profiling in Caenorhabditis elegans
    Authors:  John A. Calarco and Adam D. Norris, date: 03/05/2018, view: 3503, Q&A: 0
    [Abstract] Genetic interaction screens are a powerful methodology to establish novel roles for genes and elucidate functional connections between genes. Such studies have been performed to great effect in single-cell organisms such as yeast and E. coli (Schuldiner et al., 2005; Butland et al., 2008; Costanzo et al., 2010), ...
    Measurement of Lysosomal Size and Lysosomal Marker Intensities in Adult Caenorhabditis elegans
    Authors:  Julie M. Huynh, Hope Dang and Hanna Fares, date: 02/05/2018, view: 3100, Q&A: 0
    [Abstract] Assays have been developed to study trafficking in various tissues of Caenorhabditis elegans. Adult C. elegans intestinal cells are large and have extensive endocytic networks, thus making them a good system for deciphering the endocytic pathway using live imaging techniques. However, the presence of auto-fluorescent gut granules ...



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