Neuroscience

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    Protocols in Current Issue
    Protocol to Quantitatively Assess the Structural Integrity of Perineuronal Nets ex vivo
    Authors:  Bhanu P. Tewari and Harald Sontheimer, date: 05/20/2019, view: 172, Q&A: 0
    [Abstract] Perineuronal nets (PNNs) are extracellular matrix assemblies of highly negatively charged proteoglycans that wrap around fast-spiking parvalbumin (PV) expressing interneurons in the cerebral cortex. PNNs play important roles in neuronal plasticity and modulate biophysical properties of the enclosed interneurons. Various central nervous system ...
    Assessing Olfaction Using Ultrasonic Vocalization Recordings in Mouse Pups with a Sono-olfactometer
    Authors:  Sébastien Wagner, Pierre-Marie Lledo and Françoise Lazarini, date: 02/20/2019, view: 741, Q&A: 0
    [Abstract] Olfaction is the first sensory modality to develop during fetal life in mammals, and plays a key role in the various behaviors of neonates such as feeding and social interaction. Odorant cues (i.e., mother or predator scents) can trigger potentiation or inhibition of ultrasonic vocalizations (USV) emitted by pups following their ...
    Three-chamber Social Approach Task with Optogenetic Stimulation (Mice)
    Authors:  Celeste Leung, Jun Chul Kim and Zhengping Jia, date: 12/20/2018, view: 889, Q&A: 0
    [Abstract] The formation of social relationships via social interactions and memory are essential for one’s physical and mental health. To date, rodent studies have used the three-chamber social approach test to measure social approach, social novelty, and social memory. In recent years, techniques including optogenetics have been developed to acutely ...
    Partial Transection of Adult Rat Optic Nerve as a Model of Secondary Degeneration in the Central Nervous System
    Authors:  Carole A Bartlett and Melinda Fitzgerald, date: 12/20/2018, view: 764, Q&A: 0
    [Abstract] Injury to the central nervous system is characterized by damage that spreads from the initial point of impact into the surrounding adjacent tissue, in a phenomenon referred to as secondary degeneration. The optic nerve can be used to effectively model injury and secondary degeneration to white matter tracts. Partial transection of the dorsal ...
    Purification of Soluble Recombinant Human Tau Protein from Bacteria Using Double-tag Affinity Purification
    Authors:  Joseph McInnes, Lujia Zhou and Patrik Verstreken, date: 11/20/2018, view: 1314, Q&A: 0
    [Abstract] Dysfunction of the microtubule-associated protein Tau (encoded by the MAPT gene) has been implicated in more than twenty neurodegenerative diseases, including Alzheimer’s. As such, the physiological and disease-relevant functions of Tau have garnered great interest in the research community. One barrier hampering investigations into the ...
    Behavioral Evaluation of Seeking and Preference of Alcohol in Mice Subjected to Stress
    Authors:  Ana Canseco-Alba, Norman Schanz, Hiroki Ishiguro, Qing-Rong Liu and Emmanuel S. Onaivi, date: 10/20/2018, view: 1065, Q&A: 0
    [Abstract] The alcohol preference model is one of the most widely used animal models relevant to alcoholism. Stressors increase alcohol consumption. Here we present a protocol for a rapid and useful tool to test alcohol preference and stress-induced alcohol consumption in mice. In this model, animals are given two bottles, one with a diluted solution of ...
    Studying the Role of Microglia in Neurodegeneration and Axonal Regeneration in the Murine Visual System
    Authors:  Alexander M Hilla and Dietmar Fischer, date: 08/20/2018, view: 1984, Q&A: 0
    [Abstract] Microglia reside in the central nervous system (CNS) and are involved in the maintenance of the physiologic state. They constantly survey their environment for pathologic alterations associated with injury or diseases. For decades, researchers have investigated the role of microglia under different pathologic conditions, using approaches aiming to ...
    Ex vivo Whole-cell Recordings in Adult Drosophila Brain
    Authors:  Alexa J. Roemmich, Soleil S. Schutte and Diane K. O’Dowd, date: 07/20/2018, view: 1748, Q&A: 0
    [Abstract] Cost-effective and efficient, the fruit fly (Drosophila melanogaster) has been used to make many key discoveries in the field of neuroscience and to model a number of neurological disorders. Great strides in understanding have been made using sophisticated molecular genetic tools and behavioral assays. Functional analysis of neural ...
    α-Synuclein Aggregation Monitored by Thioflavin T Fluorescence Assay
    Authors:  Michael M. Wördehoff and Wolfgang Hoyer, date: 07/20/2018, view: 2773, Q&A: 1
    [Abstract] Studying the aggregation of amyloid proteins like α-synuclein in vitro is a convenient and popular tool to gain kinetic insights into aggregation as well as to study factors (e.g., aggregation inhibitors) that influence it. These aggregation assays typically make use of the fluorescence dye Thioflavin T as a sensitive ...
    Intracellular and Mitochondrial Reactive Oxygen Species Measurement in Primary Cultured Neurons
    [Abstract] Reactive oxygen species (ROS) are chemically reactive oxygen containing molecules. ROS consist of radical oxygen species including superoxide anion (O2•−) and hydroxyl radical (•OH) and non-radical oxygen species such as hydrogen peroxide (H2O2), singlet oxygen (O2). ROS are generated by ...



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