spinal cord

Expanding mechanisms and therapeutic targets for neurodegenerative disease

A hallmark pathological feature of the neurodegenerative diseases amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD) is the depletion of RNA-binding protein TDP-43 from the nucleus of neurons in the brain and spinal cord. A major function of TDP-43 is as a repressor of cryptic exon inclusion during RNA splicing. By re-analyzing RNA-sequencing datasets from human FTD/ALS brains, we discovered dozens of novel cryptic splicing events in important neuronal genes. Single nucleotide polymorphisms in UNC13A are among the strongest hits associated with FTD and ALS in human genome-wide association studies, but how those variants increase risk for disease is unknown. We discovered that TDP-43 represses a cryptic exon-splicing event in UNC13A. Loss of TDP-43 from the nucleus in human brain, neuronal cell lines and motor neurons derived from induced pluripotent stem cells resulted in the inclusion of a cryptic exon in UNC13A mRNA and reduced UNC13A protein expression. The top variants associated with FTD or ALS risk in humans are located in the intron harboring the cryptic exon, and we show that they increase UNC13A cryptic exon splicing in the face of TDP-43 dysfunction. Together, our data provide a direct functional link between one of the strongest genetic risk factors for FTD and ALS (UNC13A genetic variants), and loss of TDP-43 function. Recent analyses have revealed even further changes in TDP-43 target genes, including widespread changes in alternative polyadenylation, impacting expression of disease-relevant genes (e.g., ELP1, NEFL, and TMEM106B) and providing evidence that alternative polyadenylation is a new facet of TDP-43 pathology.

Computational models of spinal locomotor circuitry

To effectively move in complex and changing environments, animals must control locomotor speed and gait, while precisely coordinating and adapting limb movements to the terrain. The underlying neuronal control is facilitated by circuits in the spinal cord, which integrate supraspinal commands and afferent feedback signals to produce coordinated rhythmic muscle activations necessary for stable locomotion. I will present a series of computational models investigating dynamics of central neuronal interactions as well as a neuromechanical model that integrates neuronal circuits with a model of the musculoskeletal system. These models closely reproduce speed-dependent gait expression and experimentally observed changes following manipulation of multiple classes of genetically-identified neuronal populations. I will discuss the utility of these models in providing experimentally testable predictions for future studies.

From agents, to actions, to interactions, to societies: primates' brain networks for social processing

Visualization and manipulation of our perception and imagery by BCI

We have been developing Brain-Computer Interface (BCI) using electrocorticography (ECoG) [1] , which is recorded by electrodes implanted on brain surface, and magnetoencephalography (MEG) [2] , which records the cortical activities non-invasively, for the clinical applications. The invasive BCI using ECoG has been applied for severely paralyzed patient to restore the communication and motor function. The non-invasive BCI using MEG has been applied as a neurofeedback tool to modulate some pathological neural activities to treat some neuropsychiatric disorders. Although these techniques have been developed for clinical application, BCI is also an important tool to investigate neural function. For example, motor BCI records some neural activities in a part of the motor cortex to generate some movements of external devices. Although our motor system consists of complex system including motor cortex, basal ganglia, cerebellum, spinal cord and muscles, the BCI affords us to simplify the motor system with exactly known inputs, outputs and the relation of them. We can investigate the motor system by manipulating the parameters in BCI system. Recently, we are developing some BCIs to visualize and manipulate our perception and mental imagery. Although these BCI has been developed for clinical application, the BCI will be useful to understand our neural system to generate the perception and imagery. In this talk, I will introduce our study of phantom limb pain [3] , that is controlled by MEG-BCI, and the development of a communication BCI using ECoG [4] , that enable the subject to visualize the contents of their mental imagery. And I would like to discuss how much we can control our cortical activities that represent our perception and mental imagery. These examples demonstrate that BCI is a promising tool to visualize and manipulate the perception and imagery and to understand our consciousness. References 1. Yanagisawa, T., Hirata, M., Saitoh, Y., Kishima, H., Matsushita, K., Goto, T., Fukuma, R., Yokoi, H., Kamitani, Y., and Yoshimine, T. (2012). Electrocorticographic control of a prosthetic arm in paralyzed patients. AnnNeurol 71, 353-361. 2. Yanagisawa, T., Fukuma, R., Seymour, B., Hosomi, K., Kishima, H., Shimizu, T., Yokoi, H., Hirata, M., Yoshimine, T., Kamitani, Y., et al. (2016). Induced sensorimotor brain plasticity controls pain in phantom limb patients. Nature communications 7, 13209. 3. Yanagisawa, T., Fukuma, R., Seymour, B., Tanaka, M., Hosomi, K., Yamashita, O., Kishima, H., Kamitani, Y., and Saitoh, Y. (2020). BCI training to move a virtual hand reduces phantom limb pain: A randomized crossover trial. Neurology 95, e417-e426. 4. Ryohei Fukuma, Takufumi Yanagisawa, Shinji Nishimoto, Hidenori Sugano, Kentaro Tamura, Shota Yamamoto, Yasushi Iimura, Yuya Fujita, Satoru Oshino, Naoki Tani, Naoko Koide-Majima, Yukiyasu Kamitani, Haruhiko Kishima (2022). Voluntary control of semantic neural representations by imagery with conflicting visual stimulation. arXiv arXiv:2112.01223.

CNStalk: Being awake while asleep, being asleep while awake

Mechanisms of Axon Growth and Regeneration

Almost everybody that has seen neurons under a microscope for the first time is fascinated by their beauty and their complex shape. Early on during development, however, there are hardly any signs of their future complexity, but the neurons look round and simple. How do neurons develop their sophisticated structure? How do they initially generate domains that later have distinct function within neuronal circuits, such as the axon? And, can a better understanding of the underlying developmental mechanisms help us in pathological conditions, such as a spinal cord injury, to induce axons to regenerate? Here, I will talk about the cytoskeleton as a driving force for neuronal polarization. We will then explore how cytoskeletal changes help to reactivate the growth program of injured CNS axons to elicit axon regeneration after a spinal cord injury. Finally, we will discuss whether axon growth and synapse formation may be processes in neurons that might exclude each other. Following this developmental hypothesis, it will help us to generate a novel perspective on regeneration failure in the adult CNS, and how we can overcome this failure to induce axon regeneration. Thus, this talk will describe how we can exploit developmental mechanisms to induce axon regeneration after a spinal cord injury.

NMC4 Short Talk: Decoding finger movements from human posterior parietal cortex

Restoring hand function is a top priority for individuals with tetraplegia. This challenge motivates considerable research on brain-computer interfaces (BCIs), which bypass damaged neural pathways to control paralyzed or prosthetic limbs. Here, we demonstrate the BCI control of a prosthetic hand using intracortical recordings from the posterior parietal cortex (PPC). As part of an ongoing clinical trial, two participants with cervical spinal cord injury were each implanted with a 96-channel array in the left PPC. Across four sessions each, we recorded neural activity while they attempted to press individual fingers of the contralateral (right) hand. Single neurons modulated selectively for different finger movements. Offline, we accurately classified finger movements from neural firing rates using linear discriminant analysis (LDA) with cross-validation (accuracy = 90%; chance = 17%). Finally, the participants used the neural classifier online to control all five fingers of a BCI hand. Online control accuracy (86%; chance = 17%) exceeded previous state-of-the-art finger BCIs. Furthermore, offline, we could classify both flexion and extension of the right fingers, as well as flexion of all ten fingers. Our results indicate that neural recordings from PPC can be used to control prosthetic fingers, which may help contribute to a hand restoration strategy for people with tetraplegia.

Making spinal sensory interneurons from stem cells for regenerative therapies

Dr. Gupta is carrying out his post doctoral studies in the Buter Laboratory in UCLA. He is applying his his knowledge of embryology to stem cells for developing regenerative therapies to treat spinal cord injuries. In this talk, he will discuss how understanding the logic for spinal cord development led us to derive diverse sensory neuronal classes from embryonic stem cells. The spinal sensory neurons enableus to perceive our environment through modalities that are lost in spinal injury patients. These ESC derived senory neurons can help regain sensation in spina cord injury patients through regenerative therapies.

Regenerative Neuroimmunology - a stem cell perspective

There are currently no approved therapies to slow down the accumulation of neurological disability that occurs independently of relapses in multiple sclerosis (MS). International agencies are engaging to expedite the development of novel strategies capable of modifying disease progression, abrogating persistent CNS inflammation, and support degenerating axons in people with progressive MS. Understanding why regeneration fails in the progressive MS brain and developing new regenerative approaches is a key priority for the Pluchino Lab. In particular, we aim to elucidate how the immune system, in particular its cells called myeloid cells, affects brain structure and function under normal healthy conditions and in disease. Our objective is to find how myeloid cells communicate with the central nervous system and affect tissue healing and functional recovery by stimulating mechanisms of brain plasticity mechanisms such as the generation of new nerve cells and the reduction of scar formation. Applying combination of state-of-the-art omic technologies, and molecular approaches to study murine and human disease models of inflammation and neurodegeneration, we aim to develop experimental molecular medicines, including those with stem cells and gene therapy vectors, which slow down the accumulation of irreversible disabilities and improve functional recovery after progressive multiple sclerosis, stroke and traumatic injuries. By understanding the mechanisms of intercellular (neuro-immune) signalling, diseases of the brain and spinal cord may be treated more effectively, and significant neuroprotection may be achieved with new tailored molecular therapeutics.

Numbing intraneuronal Tau levels to prevent neurodegeneration in tauopathies

Intraneuronal accumulation of the microtubule associated protein Tau is largely recognized as an important toxic factor linked to neuronal cell death in Alzheimer’s disease and tauopathies. While there has been progress uncovering mechanisms leading to the formation of toxic Tau tangles, less is known about how intraneuronal Tau levels are regulated in health and disease. Here, I will discuss our recent work showing that the intracellular trafficking adaptor protein Numb is critical to control intraneuronal Tau levels. Inactivation of Numb in retinal ganglion cells increases monomeric and oligomeric Tau levels and leads to axonal blebbing in optic nerves, followed by significant neuronal cell loss in old mice. Interestingly, overexpression of the long isoform of Numb (Numb-72) decreases intracellular Tau levels by promoting exocytosis of monomeric Tau. In TauP301S and triple transgenic AD mouse models, expression of Numb-72 in RGCs reduces the number of axonal blebs and prevents neurodegeneration. Finally, inactivation of Numb in TauP301S mice accelerates neurodegeneration in both the retina and spinal cord and leads to precocious paralysis. Taken together, these results uncover Numb as a essential regulator of Tau homeostasis in neurons and as a potential therapeutic agent for AD and tauopathies.

Anatomical and functional characterization of the neuronal circuits underlying ejaculation

During sexual behavior, copulation related sensory information and modulatory signals from the brain must be integrated and converted into the motor and secretory outputs that characterize ejaculation (Lenschow and Lima, Current Opinion in Neurobiology, 2020). Studies in humans and rats suggest the existence of interneurons in the lumbar spinal cord that mediates that step: the spinal ejaculation generator (SEG). My work aimed at gaining mechanistic insights about the neuronal circuits controlling ejaculation thereby applying cutting-edge techniques. More specifically, we mapped anatomically and functionally the spinal circuit for ejaculation starting from the main muscle being involved in sperm expulsion: the bulbospongiosus muscle (BSM). Combining viral tracing strategies with electrophysiology, we specifically show that the BSM motoneurons receive direct synaptic input from a group of interneurons located in between lumbar segment 2 and 3 and expressing the peptide galanin. Electrically and optogenetically activating the galanin positive cells (the SEG) lead to the activation of the motoneurons innervating the BSM and the muscle itself. Finally, inhibition of SEG cells using DREADDs (Designer Receptors Exclusively Activated by Designer Drugs) in sexual behaving animals is currently conducted to reveal whether ejaculation can be prevented.

Life of Pain and Pleasure

The ability to experience pain is old in evolutionary terms. It is an experience shared across species. Acute pain is the body’s alarm system, and as such it is a good thing. Pain that persists beyond normal tissue healing time (3-4 months) is defined as chronic – it is the system gone wrong and it is not a good thing. Chronic pain has recently been classified as both a symptom and disease in its own right. It is one of the largest medical health problems worldwide with one in five adults diagnosed with the condition. The brain is key to the experience of pain and pain relief. This is the place where pain emerges as a perception. So, relating specific brain measures using advanced neuroimaging to the change patients describe in their pain perception induced by peripheral or central sensitization (i.e. amplification), psychological or pharmacological mechanisms has tremendous value. Identifying where amplification or attenuation processes occur along the journey from injury to the brain (i.e. peripheral nerves, spinal cord, brainstem and brain) for an individual and relating these neural mechanisms to specific pain experiences, measures of pain relief, persistence of pain states, degree of injury and the subject's underlying genetics, has neuroscientific and potential diagnostic relevance. This is what neuroimaging has afforded – a better understanding and explanation of why someone’s pain is the way it is. We can go ‘behind the scenes’ of the subjective report to find out what key changes and mechanisms make up an individual’s particular pain experience. A key area of development has been pharmacological imaging where objective evidence of drugs reaching the target and working can be obtained. We even now understand the mechanisms of placebo analgesia – a powerful phenomenon known about for millennia. More recently, researchers have been investigating through brain imaging whether there is a pre-disposing vulnerability in brain networks towards developing chronic pain. So, advanced neuroimaging studies can powerfully aid explanation of a subject’s multidimensional pain experience, pain relief (analgesia) and even what makes them vulnerable to developing chronic pain. The application of this goes beyond the clinic and has relevance in courts of law, and other areas of society, such as in veterinary care. Relatively far less work has been directed at understanding what changes in the brain occur during altered states of consciousness induced either endogenously (e.g. sleep) or exogenously (e.g. anaesthesia). However, that situation is changing rapidly. Our recent multimodal neuroimaging work explores how anaesthetic agents produce altered states of consciousness such that perceptual experiences of pain and awareness are degraded. This is bringing us fascinating insights into the complex phenomenon of anaesthesia, consciousness and even the concept of self-hood. These topics will be discussed in my talk alongside my ‘side-story’ of life as a scientist combining academic leadership roles with doing science and raising a family.

Recurrent problems in spinal-cord and cerebellar circuits

One of the best established recurrent inhibitory pathways is the recurrent inhibition of mammalian motoneurons through Renshaw cells. Golgi cells form an inhibitory feedback circuit in the granular layer of cerebellum. Feedback inhibitory pathways are long established “textbook” elements of neural circuitry, but in both cases their functional role has not been well established. Here I will present some new observations on the function of recurrent inhibition in the spinal-cord, supporting the idea that this connection frequency tunes transmission of inputs through motoneurons. Secondly, I will discuss evidence that the function of Golgi cells is much more complex than classical studies based on circuit connectivity suggest.

Molecular controls over corticospinal neuron axon branching at specific spinal segments

Corticospinal neurons (CSN) are the cortical projection neurons that innervate the spinal cord and some brainstem targets with segmental precision to control voluntary movement of specific functional motor groups, limb sections, or individual digits, yet molecular regulation over CSN segmental target specificity is essentially unknown. CSN subpopulations exhibit striking axon targeting specificity from development into maturity: Evolutionarily newer rostrolateral CSN exclusively innervate bulbar-cervical targets (CSNBC-lat), while evolutionarily older caudomedial CSN (CSNmed) are more heterogeneous, with distinct subpopulations extending axons to either bulbar-cervical or thoraco-lumbar segments. The cervical cord, with its evolutionarily enhanced precision of forelimb movement, is innervated by multiple CSN subpopulations, suggesting inter-neuronal interactions in establishing corticospinal connectivity. I identify that Lumican, previously unrecognized in axon development, controls the specificity of cervical spinal cord innervation by CSN. Remarkably, Lumican, an extracellular matrix protein expressed by CSNBC-lat, non-cell-autonomously suppresses axon collateralization in the cervical cord by CSNmed. Intersectional viral labeling and mouse genetics further identify that Lumican controls axon collateralization by multiple subpopulations in caudomedial sensorimotor cortex. These results identify inter-axonal molecular crosstalk between CSN subpopulations as a novel mechanism controlling corticospinal connectivity and competitive specificity. Further, this mechanism has potential implications for evolutionary diversification of corticospinal circuitry with finer scale precision. "" Complementing this work, to comprehensively elucidate related axon projection mechanisms functioning at tips of growing CSN axons in vivo, I am currently applying experimental and analytic approaches recently developed in my postdoc lab (Poulopoulos*, Murphy*, Nature, 2019) to quantitatively and subcellularly “map” RNA and protein molecular machinery of subtype-specific growth cones, in parallel to their parent somata, isolated directly in vivo from developing subcerebral projection neurons (SCPN; the broader cortical output neuron population targeting both brainstem and spinal cord; includes CSN). I am investigating both normal development and GC-soma dysregulation with mutation of central CSN-SCPN transcriptional regulator Ctip2/Bcl11b.

Parallel ascending spinal pathways for affective touch and pain

Each day we experience myriad somatosensory stimuli: hugs from loved ones, warm showers, a mosquito bite, and sore muscles after a workout. These tactile, thermal, itch, and nociceptive signals are detected by peripheral sensory neuron terminals distributed throughout our body, propagated into the spinal cord, and then transmitted to the brain through ascending spinal pathways. Primary sensory neurons that detect a wide range of somatosensory stimuli have been identified and characterized. In contrast, very little is known about how peripheral signals are integrated and processed within the spinal cord and conveyed to the brain to generate somatosensory perception and behavioral responses. We tackled this question by developing new mouse genetic tools to define projection neuron (PN) subsets of the anterolateral pathway, a major ascending spinal cord pathway, and combining these new tools with advanced anatomical, physiological, and behavioral approaches. We found that Gpr83+ PNs, a newly identified subset of spinal cord output neurons, and Tacr1+ PNs are largely non-overlapping populations that innervate distinct sets of subnuclei within the lateral parabrachial nucleus (PBNL) of the pons in a zonally segregated manner. In addition, Gpr83+ PNs are highly sensitive to cutaneous mechanical stimuli, receive strong synaptic inputs from primary mechanosensory neurons, and convey tactile information bilaterally to the PBNL in a non-topographically organized manner. Remarkably, Gpr83+ mechanosensory limb of the anterolateral pathway controls behaviors associated with different hedonic values (appetitive or aversive) in a scalable manner. This is the first study to identify a dedicated spinal cord output pathway that conveys affective touch signals to the brain and to define parallel ascending circuit modules that cooperate to convey tactile, thermal and noxious cutaneous signals from the spinal cord to the brain. This study has also revealed exciting new therapeutic opportunities for developing treatments for neurological disorders associated with pain and affective touch.

Targeting the Endocannabinoid System for Management of Chemotherapy, HIV and Antiretroviral-Induced Neuropathic Pain

Chemotherapeutic drugs (used for treating cancer), HIV infection and antiretroviral therapy (ART) can independently cause difficult-to-manage painful neuropathy. Paclitaxel, a chemotherapeutic drug, for example is associated with high incidence of peripheral neuropathy, around 71% of the patients of which 27% of these develop neuropathic pain. Use of cannabis or phytocannabinoids has been reported to improve pain measures in patients with neuropathic pain, including painful HIV-associated sensory neuropathy and cancer pain. Phytocannabinoids and endocannabinoids, such as anandamide and 2-arachidonoylglycerol (2-AG), produce their effects via cannabinoid (CB) receptors, which are present both in the periphery and central nervous system. Endocannabinoids are synthesized in an “on demand” fashion and are degraded by various enzymes such as fatty acid amide hydrolase (FAAH) and monoacylglycerol lipase (MGL). Various studies, including those from our group, suggest that there are changes in gene and protein expression of endocannabinoid molecules during chemotherapy-induced neuropathic pain (CINP), HIV and antiretroviral-induced neuropathic pain. Analysis of endocannabinoid molecule expression in the brain, spinal cord and paw skin using LC-MS/MS show that there is a specific deficiency of the endocannabinoids 2-AG and/or anandamide in the periphery during CINP. Various drugs including endocannabinoids, cannabidiol, inhibitors of FAAH and MGL, CB receptor agonists, desipramine and coadministered indomethacin plus minocycline have been found to either prevent the development and/or attenuate established CINP, HIV and antiretroviral-induced neuropathic pain in a CB receptor-dependent manner. The results available suggest that targeting the endocannabinoid system for prevention and treatment of CINP, HIV-associated neuropathic pain and antiretroviral-induced neuropathic pain is a plausible therapeutic option.

A mechanosensory system in the spinal cord for posture, morphogenesis & innate immunity

How the brain comes to balance: Development of postural stability and its neural architecture in larval zebrafish

Maintaining posture is a vital challenge for all freely-moving organisms. As animals grow, their relationship to destabilizing physical forces changes. How does the nervous system deal with this ongoing challenge? Vertebrates use highly conserved vestibular reflexes to stabilize the body. We established the larval zebrafish as a new model system to understand the development of the vestibular reflexes responsible for balance. In this talk, I will begin with the biophysical challenges facing baby fish as they learn to swim. I’ll briefly review published work by David Ehrlich, Ph.D., establishing a fundamental relationship between postural stability and locomotion. The bulk of the talk will highlight unpublished work by Kyla Hamling. She discovered that a small (~50) population of molecularly-defined brainstem neurons called vestibulo-spinal cells act as a nexus for postural development. Her loss-of-function experiments show that these neurons contribute more to postural stability as animals grow older. I’ll end with brief highlights from her ongoing work examining tilt-evoked responses of these neurons using 2-photon imaging and the consequences of downstream activity in the spinal cord using single-objective light-sheet (SCAPE) microscopy

A NOVEL APPROACH FOR INVESTIGATING SENSORY ENCODING IN THE DORSAL SPINAL CORD OF FREELY MOVING MICE

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THE DEVELOPMENT OF SPINAL CORD CIRCUITS UNDERLYING WIDESPREAD NOCICEPTIVE BEHAVIOURS

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LINEAGE ORIGIN OF SPINAL CORD CELL TYPE DIVERSITY

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SEGMENT-SPECIFIC CERVICAL SPINAL CORD STIMULATION DIFFERENTIALLY RECRUITS FORELIMB MUSCLES AND MODULATES CORTICAL RESPONSES IN THE MOUSE

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SENSORIMOTOR REHABILITATION AFTER SPINAL CORD INJURY ENHANCED BY SYNERGISTIC VIRTUAL REALITY AND TRANSCUTANEOUS ELECTRICAL STIMULATION

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TIME-DEPENDENT ADAPTATIONS OF DAMAGED NEURONS AND THEIR MICROENVIRONMENT IN THE REGENERATING ADULT ZEBRAFISH SPINAL CORD

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FUNCTIONAL ELECTRICAL STIMULATION INDUCES SPINAL PLASTICITY AND LOCOMOTOR RECOVERY AFTER SPINAL CORD INJURY

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REPETITIVE TRANS-SPINAL MAGNETIC STIMULATION PROMOTES REPAIR IN INFLAMMATORY SPINAL CORD INJURY THROUGH SEX-DEPENDENT IMMUNE MODULATION

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TARGETING LSD1 TO REDUCE NEUROINFLAMMATION AND PROMOTE FUNCTIONAL RECOVERY AFTER SPINAL CORD INJURY

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LOW-INTENSITY MAGNETIC STIMULATION EXERTS PATTERN-DEPENDENT EFFECTS ON TISSUE REPAIR AFTER SPINAL CORD INJURY

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VIRTUAL REALITY–BASED BRAIN–COMPUTER INTERFACE FOR SPINAL CORD INJURY: CLINICAL AND NEUROPHYSIOLOGICAL EFFECTS

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LESS INVASIVE INTRAPERITONEAL DELIVERY OF HUMAN IL-10 MRNA–LNP PROMOTES MORPHOLOGICAL AND FUNCTIONAL RECOVERY AFTER SPINAL CORD CONTUSION INJURY

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CIRCUIT-LEVEL MAPPING OF LOCOMOTOR NETWORK RECRUITMENT DURING NEUROMODULATORY STIMULATION AFTER SPINAL CORD INJURY

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COMPARATIVE PROTEIN KINASE C MODULATION BY PROSTRATIN AND BRYOSTATIN-1 ON MICROGLIAL ACTIVATION AND NEURITE OUTGROWTH IN <EM>IN VITRO</EM> MODELS OF SPINAL CORD INJURY

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ALTERED NOCICEPTIVE RESPONDING IN A PRECLINICAL MODEL OF AUTISM IS ASSOCIATED WITH SEX-DEPENDANT TRANSCRIPTIONAL CHANGES IN THE DORSAL HORN OF THE SPINAL CORD

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INVESTIGATING THE MECHANISMS OF ACTION OF INTRAVENOUS STEM CELL THERAPY FOLLOWING TRAUMATIC SPINAL CORD INJURY

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CD9 AS A DRIVER OF NEUROPHATIC PAIN THROUGH ADAPTIVE IMMUNITY AFTER SPINAL CORD INJURY

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REWIRING THE SPINAL CORD: LIPID REGULATION VIA PERICYTIC IDOL AFTER INJURY

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SYMPATHETIC INTEGRITY DETERMINES ANGIOTENSIN II RECEPTOR–MEDIATED NEUROENDOCRINE–IMMUNE RESPONSES AFTER SPINAL CORD INJURY

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WASTEOSOME DISTRIBUTION SUGGESTS SELECTIVE GLYMPHATIC VULNERABILITY IN DIFFERENT REGIONS OF THE SPINAL CORD

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ANTI-INFLAMMATORY AND NEUROPROTECTIVE EFFECTS OF INFLAMMASOME INHIBITORS FOLLOWING CONTUSION SPINAL CORD INJURY

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EFFECTS OF DYSTROPHIN LOSS AND DISEASE PROGRESSION ON GABAERGIC SYNAPTIC MARKERS IN THE SPINAL CORD OF <EM>MDX</EM> MICE, A MODEL OF DUCHENNE MUSCOLAR DYSTROPHY

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TRANSCUTANEOUS ELECTRIC AND CHEMOGENETIC SPINAL CORD STIMULATION MODULATE MEMORY CAPACITY IN MICE

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SEX- AND DOSE-DEPENDENT MODULATION OF FORELIMB MOTOR OUTPUT BY OREXIN-A IN INTACT AND CERVICAL SPINAL CORD–INJURED MICE

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HUMAN CORTICAL AND SPINAL CORD ORGANOIDS REVEAL CELL-TYPE–SPECIFIC CONSEQUENCES OF TDP-43 I383V MUTATION

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SPATIOTEMPORAL EXPRESSION OF THE C-TYPE LECTIN CD93 IN A MOUSE MODEL OF SPINAL CORD INJURY

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CLEARING UP INCONTINENCE: DEVELOPING OPTICAL TISSUE CLEARING TECHNIQUES TO UNRAVEL THE 3D NEUROANATOMY OF BLADDER CONTROL IN THE HUMAN SPINAL CORD

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MAPPING THE CONNECTIVITY OF SPINAL CORD PROJECTION NEURONS

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FUNCTIONAL EFFECTS AND RECIPIENT CELLS FOLLOWING PRO-INFLAMMATORY SMALL EXTRACELLULAR VESICLES TRANSFER TO NAÏVE SPINAL CORD EXPLANTS

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CAMP-INDUCED TRANSCRIPTIONAL PROFILING PROVIDES INSIGHTS INTO THE BIOLOGY OF SPINAL CORD INJURY HEALING

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FLOOR PLATE DERIVED NETRIN-1 IS AN INSTRUCTIVE LONG-RANGE GUIDANCE CUE FOR COMMISSURAL AXONS IN THE EMBRYONIC SPINAL CORD

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CONNEXIN 43 HEMICHANNELS MODULATE THE EARLY RESPONSE OF EPENDYMAL CELLS TO SPINAL CORD INJURY

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PHARMACOLOGICAL TARGETING OF THE MITO-NUCLEAR AXIS AS A KEY REGULATOR OF MOTOR FUNCTION, NEURONAL REORGANIZATION AND BIOENERGETICS AFTER SPINAL CORD INJURY

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THE CROSSTALK BETWEEN THE EPIGENOME AND MITOCHONDRIA AS CENTRAL PLAYER IN NEURAL FATE DECISIONS OF THE AXOTOMIZED NEURONS AFTER SPINAL CORD INJURY

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PROPRIOSPINAL PACAPERGIC NEURONS MEDIATE ELECTRICAL STIMULATION-ASSISTED RECOVERY OF RESPIRATION AFTER SPINAL CORD INJURY IN MICE

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ROSTRAL VENTROMEDIAL MEDULLA (RVM) D2R-EXPRESSING NEURONS ACTS AS A NOCICEPTIVE RELAY BETWEEN BASAL GANGLIA AND SPINAL CORD

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ACTIVATION OF HYPOTHALAMIC-PONTINE-SPINAL PATHWAY PROMOTES LOCOMOTOR INITIATION AND FUNCTIONAL RECOVERY AFTER SPINAL CORD INJURY IN MICE

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DISTINCT SPINAL CORD CELLULAR COMPOSITION AND TRANSCRIPTIONAL STATES ASSOCIATED WITH MOTONEURON FATE UNDER NERVE REGENERATIVE AND DEGENERATIVE CONDITIONS IN NEONATAL RATS

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POST-ACTIVATION DEPRESSION OF POSTERIOR ROOT MUSCLE RESPONSES EVOKED BY TRANSCUTANEOUS SPINAL CORD STIMULATION AT CERVICAL AND LUMBOSACRAL LEVELS IN HEALTHY HUMANS

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NEURONAL ACTIVATION MAPPING IN THE SPINAL CORD FOLLOWING HIGH-INTENSITY TRANS-SPINAL MAGNETIC STIMULATION IN MICE

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