Neuroscience

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    Protocols in Current Issue
    Retina Injury and Retina Tissue Preparation to Study Regeneration in Zebrafish
    Authors:  Poonam Sharma and Rajesh Ramachandran, date: 12/20/2019, view: 344, Q&A: 0
    [Abstract] Unlike mammals, primitive vertebrates have immense capability to regenerate almost all of their organs including the central nervous system. Among primitive organisms, zebrafish have been extensively used as a model system for regeneration studies. The retina is a part of the central nervous system and mammals lack the potential to repair any ...
    Semi-automated Model to Accurately Counting Sympathetic Nervous Fibers
    [Abstract] In recent years, the role of sympathetic nervous fibers in chronic inflammation has become increasingly evident. At the onset of inflammation, sympathetic activity is increased in the affected tissue. However, sympathetic fibers are largely absent from chronically inflamed tissues. Apparently, there is a very dynamic relationship between ...
    Evoked Potential Recordings of Auditory Brainstem Activity in the Mouse: An Optimized Method for the Assessment of Hearing Function of Mice
    Author:  Neil J. Ingham, date: 12/05/2019, view: 412, Q&A: 0
    [Abstract] Hearing loss is a common sensory deficiency suffered by millions worldwide. It is a heterogeneous condition and genetics plays a critical role in its etiology. Gene variants can fundamentally alter hearing function, or predispose the auditory system towards loss of function resulting from other factors. In mouse studies of hearing loss and gene ...
    Optogenetic Food Odor Avoidance Assay
    Authors:  Jay M. Patel, Jessica Swanson and Benjamin R. Arenkiel, date: 10/20/2019, view: 476, Q&A: 0
    [Abstract] Appetite is tightly linked to the sensory experience of feeding, including the smell, taste, and sight of food. Sensory perception can affect the palatability of food, modulating appetite beyond homeostatic requirements. Hypothalamic neurons that govern feeding are responsive to sensory cues associated with food, including food odors. However, the ...
    Sciatic Nerve Cut and Repair Using Fibrin Glue in Adult Mice
    Authors:  Erica T. Akhter, Travis M. Rotterman, Arthur W. English and Francisco J. Alvarez, date: 09/20/2019, view: 611, Q&A: 0
    [Abstract] Peripheral nerve injury (PNI) is an excellent model for studying neural responses to injury and elucidating the mechanisms that can facilitate axon regeneration. As such, several animal models have been employed to study regenerative mechanisms after PNI, including Aplysia, zebrafish, rabbits, cats and rodents. This protocol describes how to ...
    Cylinder Test to Assess Sensory-motor Function in a Mouse Model of Parkinson’s Disease
    [Abstract] Parkinson’s disease is a progressive neurodegenerative movement disorder that happens due to the loss of dopaminergic neurons in the substantia nigra. The deficiency of dopamine in the basal nuclei drives cardinal motor symptoms such as bradykinesia and hypokinesia. The current protocol describes the cylinder test, which is a relatively simple ...
    Whisker Nuisance Test: A Valuable Tool to Assess Tactile Hypersensitivity in Mice
    Authors:  Luigi Balasco, Gabriele Chelini, Yuri Bozzi and Giovanni Provenzano, date: 08/20/2019, view: 675, Q&A: 0
    [Abstract] Abnormal response to tactile stimulation, described as both hyper- and hypo-reactivity, is a common sensory impairment in multiple neuropsychiatric disorders. The neural bases of tactile sensitivity remain so far unknown. In the last years, animal studies have proven to be useful for shedding light on the cellular and molecular mechanism ...
    Isoelectric Focusing to Quantify Rhodopsin Phosphorylation in Mouse Retina
    Authors:  Sowmya Bekshe Lokappa, M. Carter Cornwall and Jeannie Chen, date: 07/20/2019, view: 1724, Q&A: 0
    [Abstract] Rhodopsin is a G-protein coupled receptor (GPCR) that mediates vision under dim light. Upon light exposure, rhodopsin is phosphorylated at multiple serine and threonine sites at its carboxyl-terminus by rhodopsin kinase (GRK1). This, in turn, reduces its ability to activate the visual G-protein transducin. Binding of light-activated, ...
    A High-throughput qPCR-based Method to Genotype the SOD1G93A Mouse Model for Relative Copy Number
    Authors:  Valerie R. Tassinari and Fernando G. Vieira, date: 06/20/2019, view: 1357, Q&A: 0
    [Abstract] The most commonly used mouse model in ALS preclinical research expresses multiple copies of the human SOD1 (G93A) transgene. During the course of breeding, successive generations of mice can lose copies of the transgene. Because shorter lifespan of these mice is dependent on transgene copy number, it is essential to ensure that no low-copy, and ...
    Optical Stimulation and Electrophysiological Analysis of Regenerating Peripheral Axons
    Authors:  Patricia J. Ward and Arthur W. English, date: 06/20/2019, view: 1130, Q&A: 0
    [Abstract] Although axons in the peripheral nervous system can regenerate, functional recovery after nerve injuries is poor. Activity-based therapies, such as exercise and electrical stimulation, enhance the regeneration of cut peripheral axons. Despite their effectiveness, clinical application of these experimental techniques has been limited. At least part ...



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