Neuroscience

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    Protocols in Current Issue
    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: 42, 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: 266, 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: 1293, 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: 852, 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: 686, 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 ...
    Accessing Olfactory Habituation in Drosophila melanogaster with a T-maze Paradigm
    Authors:  Ourania Semelidou, Summer F. Acevedo and Efthimios M.C. Skoulakis, date: 06/05/2019, view: 761, Q&A: 0
    [Abstract] Habituation is the process whereby perceptual changes alter the value of environmental stimuli, enabling salience filtering. This behavioral response decrement is a form of non-associative learning, where the subject learns about the stimulus and does not involve sensory adaptation, sensory or motor fatigue. The range of behavioral responses in D. ...
    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: 1213, 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 ...
    A Mouse Model of Postoperative Pain
    Authors:  Ashley M. Cowie and Cheryl L. Stucky, date: 01/20/2019, view: 2341, Q&A: 0
    [Abstract] Postoperative pain is highly debilitating and hinders recovery. Opioids are the main pain medication used for acute postoperative pain. Given the devastating opioid addiction and overdose epidemic across the US, non-opioid pain therapeutics are desperately needed. In order to develop novel, non-opioid therapies for the treatment of postoperative ...
    Eye Drops for Delivery of Bioactive Compounds and BrdU to Stimulate Proliferation and Label Mitotically Active Cells in the Adult Rodent Retina
    Authors:  Cindy L. Linn, Sarah E. Webster and Mark K. Webster, date: 11/05/2018, view: 1389, Q&A: 0
    [Abstract] Eye drop treatments are typically used to apply drugs to the anterior structures of the eye. Recently, however, studies have demonstrated that eye drops can reach the retina in the back of the eye if pharmacological agents are carried in appropriate vehicles. Here, we introduce an eye drop procedure to deliver a drug (PNU-282987), in combination ...



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