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https://www.readbyqxmd.com/read/28230415/targeting-translational-successes-through-cansort-sci-using-pet-dogs-to-identify-effective-treatments-for-spinal-cord-injury
#1
Sarah A Moore, Nicolas Granger, Natasha Olby, Ingo Spitzbarth, Nick D Jeffery, Andrea Tipold, Yvette S Nout-Lomas, Ronaldo da Costa, Veronika Stein, Linda Noble-Haeusslein, Andrew R Blight, Robert Grossman, D Michele Basso, Jonathan Michael Levine
Translation of therapeutic interventions for spinal cord injury (SCI) from laboratory to clinic has been historically challenging, highlighting the need for robust models of injury that more closely mirror the human condition. The high prevalence of acute, naturally occurring SCI in pet dogs provides a unique opportunity to expeditiously evaluate promising interventions in a population of animals that are diagnosed and managed clinically in a manner similar to spinal cord-injured people, while adhering to NIH guidelines for scientific rigor and transparent reporting...
February 23, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28230061/neurofibromatosis-type-1
#2
REVIEW
David H Gutmann, Rosalie E Ferner, Robert H Listernick, Bruce R Korf, Pamela L Wolters, Kimberly J Johnson
Neurofibromatosis type 1 is a complex autosomal dominant disorder caused by germline mutations in the NF1 tumour suppressor gene. Nearly all individuals with neurofibromatosis type 1 develop pigmentary lesions (café-au-lait macules, skinfold freckling and Lisch nodules) and dermal neurofibromas. Some individuals develop skeletal abnormalities (scoliosis, tibial pseudarthrosis and orbital dysplasia), brain tumours (optic pathway gliomas and glioblastoma), peripheral nerve tumours (spinal neurofibromas, plexiform neurofibromas and malignant peripheral nerve sheath tumours), learning disabilities, attention deficits, and social and behavioural problems, which can negatively affect quality of life...
February 23, 2017: Nature Reviews. Disease Primers
https://www.readbyqxmd.com/read/28229085/folate-receptor-alpha-is-more-than-just-a-folate-transporter
#3
Vineet Mohanty, M Rizwan Siddiqui, Tadanori Tomita, Chandra Shekhar Mayanil
Until recently folate receptor alpha (FRα) has only been considered as a folate transporter. However, a novel role of FRα as a transcription factor was reported by our lab. More recently our lab showed a novel pleiotropic role of FRα: (a) direct transcriptional activation of Oct4, Sox2, and Klf4 genes; and (b) repression of biogenesis of miRNAs that target these genes or their effector molecules. These observations beg a question: "Can a simple molecule such as folate be used to manipulate the production and/or differentiation of endogenous neural stem cells (NSCs), which may hold promise for future therapies?" Conditions such as spinal cord injury, motor neuron diseases, Alzheimer's disease and multiple sclerosis may benefit from increasing stem cell pool and promoting specific pathways of differentiation...
2017: Neurogenesis (Austin, Tex.)
https://www.readbyqxmd.com/read/28228721/patients-with-chronic-spinal-cord-injury-exhibit-reduced-autonomic-modulation-during-an-emotion-recognition-task
#4
Gonzalo Varas-Díaz, Enzo P Brunetti, Gonzalo Rivera-Lillo, Pedro E Maldonado
Spinal cord injury (SCI) is a devastating event for individuals, who frequently develop motor and sensory impairment as well as autonomic dysfunction. Previous studies reported that autonomic activity plays a major role in social cognition and that difficulties in the ability to interpret social information are commonly observed in a variety of mental disorders, which in turn correlate with a poor autonomic nervous system (ANS) regulation. It is well established that subjects with SCI have an alteration in ANS regulation mechanisms...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28228325/prognostic-factors-associated-with-the-surgical-indication-for-lumbar-spinal-stenosis-patients-less-responsive-to-conservative-treatments-an-investigator-initiated-observational-cohort-study
#5
Masayoshi Fukushima, Hiroyuki Oka, Nobuhiro Hara, Yasushi Oshima, Hirotaka Chikuda, Sakae Tanaka, Katsushi Takeshita, Ko Matsudaira
BACKGROUND: A few cohort studies have determined which patients with lumbar spinal stenosis are likely to need surgery because of the deterioration of symptoms. However, there are still insufficient data regarding the management of lumbar spinal stenosis due to lack of prognostic factors associated with the need for surgery. The purpose of this study was to identify the prognostic factors associated with the need for surgical treatment in patients with lumbar spinal stenosis. METHODS: Patients with lumbar spinal stenosis from our hospital and related facilities were enrolled...
February 19, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28227825/real-time-autonomous-bladder-event-classification-and-closed-loop-control-from-single-channel-pressure-data
#6
Robert Karam, Swarup Bhunia, Steve Majerus, Steven W Brose, Margot S Damaser, Dennis Bourbeau, Robert Karam, Swarup Bhunia, Steve Majerus, Steven W Brose, Margot S Damaser, Dennis Bourbeau, Steve Majerus, Margot S Damaser, Robert Karam, Steven W Brose, Dennis Bourbeau, Swarup Bhunia
Urinary incontinence, or the loss of bladder control, is a debilitating condition affecting millions worldwide, which significantly reduces quality of life. Neuromodulation of lower urinary tract nerves can be used to treat sensations of urgency in many subjects, including those with Spinal Cord Injury (SCI). Event driven, or conditional stimulation has been investigated as a possible improvement to the state-of-the-art open-loop stimulation systems available today. However, this requires a robust, adaptive, and noise-tolerant method of classifying bladder function from real-time bladder pressure measurements...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227641/optimization-of-an-unpowered-energy-stored-exoskeleton-for-patients-with-spinal-cord-injury
#7
Xinyu Guan, Linhong Ji, Rencheng Wang, Wenjie Huang, Xinyu Guan, Linhong Ji, Rencheng Wang, Wenjie Huang, Rencheng Wang, Xinyu Guan, Wenjie Huang, Linhong Ji
The paper describes a novel unpowered energy-stored exoskeleton (ES-EXO) for spinal cord injured patients in consideration of patients' characteristics and injured levels. It proposed a method to optimize the energy-stored element to decrease the hip joint moment in walking. EMG patterns, ground reaction force and motion data from one participant with complete spinal cord injury at T10 were recorded. A combined human-ES-EXO model was built and the stored-energy element including locations and stiffness of springs were optimized in AnyBody Modeling System...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226428/a-model-based-exploration-of-the-role-of-pattern-generating-circuits-during-locomotor-adaptation
#8
Ali Marjaninejad, James M Finley, Ali Marjaninejad, James M Finley, Ali Marjaninejad, James M Finley
In this study, we used a model-based approach to explore the potential contributions of central pattern generating circuits (CPGs) during adaptation to external perturbations during locomotion. We constructed a neuromechanical modeled of locomotion using a reduced-phase CPG controller and an inverted pendulum mechanical model. Two different forms of locomotor adaptation were examined in this study: split-belt treadmill adaptation and adaptation to a unilateral, elastic force field. For each simulation, we first examined the effects of phase resetting and varying the model's initial conditions on the resulting adaptation...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226053/social-representations-of-fishermen-with-spinal-cord-injury-impacts-and-life-trajectory
#9
Eliane Santos Cavalcante, João Mário Pessoa, Izaura Luzia Silvério Freire, Cleonice Andréa Alves Cavalcante, Francisco Arnoldo Nunes de Miranda
Objective: analyze social representations in the life trajectory of artisanal fishermen with spinal cord injury caused by diving on the north coast of Rio Grande do Norte. Method: a descriptive, qualitative study was conducted with 31 fishermen between October 2013 and August 2014, using a semi-structured interview. A lexicographic analysis and descending hierarchical classification of texts were performed (with software ALCESTE), in the perspective of the social representations...
January 2017: Revista Brasileira de Enfermagem
https://www.readbyqxmd.com/read/28223219/trpm2-contributes-to-lpc-induced-intracellular-ca-2-influx-and-microglial-activation
#10
Heejin Jeong, Yong Ho Kim, Yunsin Lee, Sung Jun Jung, Seog Bae Oh
Microglia are the resident immune cells which become activated in some pathological conditions in central nervous system (CNS). Lysophosphatidylcholine (LPC), an endogenous inflammatory phospholipid, is implicated in immunomodulatory function of glial cells in the CNS. Although several studies uncovered that LPC induces intracellular Ca(2+) influx and morphologic change in microglia, there is still no direct evidence showing change of phosphorylation of mitogen-activated protein kinase (MAPK) p38 (p-p38), a widely used microglia activation marker, by LPC...
February 18, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28223038/nanoconjugate-bound-adenosine-a1-receptor-antagonist-enhances-recovery-of-breathing-following-acute-cervical-spinal-cord-injury
#11
Zeljka Minic, Sharowyn Wilson, Fangchao Liu, Abdulghani Sankari, Guangzhao Mao, Harry Goshgarian
Respiratory complications in patients with spinal cord injury (SCI) are common and can have a negative impact on the quality of patients' lives. Previously, we found that intradiaphragmatic administration of the nanoconjugate-bound A1 adenosine receptor antagonist, 1,3-dipropyl-8-cyclopentylxanthine (DPCPX) induced recovery of diaphragm function following SCI in rats. When administered immediately following the injury, recovery was observed as early as 3days following SCI and it persisted until the end of the study, 28days after the drug delivery...
February 18, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28222759/development-and-assessment-of-a-hand-assist-device-gripit
#12
Byungchul Kim, Hyunki In, Dae-Young Lee, Kyu-Jin Cho
BACKGROUND: Although various hand assist devices have been commercialized for people with paralysis, they are somewhat limited in terms of tool fixation and device attachment method. Hand exoskeleton robots allow users to grasp a wider range of tools but are heavy, complicated, and bulky owing to the presence of numerous actuators and controllers. The GRIPIT hand assist device overcomes the limitations of both conventional devices and exoskeleton robots by providing improved tool fixation and device attachment in a lightweight and compact device...
February 21, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28222563/afferent-electrical-stimulation-during-cycling-improves-spinal-processing-of-sensorimotor-function-after-incomplete-spinal-cord-injury
#13
Stefano Piazza, Diego Serrano-Muñoz, Julio Gómez-Soriano, Diego Torricelli, Antonio Segura-Fragosa, José Luis Pons, Julian Taylor
OBJECTIVE: Appropriate afferent feedback delivery during the execution of motor tasks is important for rehabilitation after incomplete spinal cord injury (iSCI). However, during leg-cycling therapy, the plantar afferent feedback is minimal. We hypothesize that the augmentation of sensory input by combining cycling with a locomotor-like stimulation of plantar cutaneous innervations (ES-cycling), might help to restore proper spinal processing of sensorimotor function. METHODS: 13 non-injured subjects and 10 subjects with iSCI performed 10 minutes of cycling and, on another session, of ES-cycling...
February 10, 2017: NeuroRehabilitation
https://www.readbyqxmd.com/read/28220607/neurological-and-spinal-manifestations-of-the-ehlers-danlos-syndromes
#14
Fraser C Henderson, Claudiu Austin, Edward Benzel, Paolo Bolognese, Richard Ellenbogen, Clair A Francomano, Candace Ireton, Petra Klinge, Myles Koby, Donlin Long, Sunil Patel, Eric L Singman, Nicol C Voermans
The Ehlers-Danlos syndromes (EDS) are a heterogeneous group of heritable connective tissue disorders characterized by joint hypermobility, skin extensibility, and tissue fragility. This communication briefly reports upon the neurological manifestations that arise including the weakness of the ligaments of the craniocervical junction and spine, early disc degeneration, and the weakness of the epineurium and perineurium surrounding peripheral nerves. Entrapment, deformation, and biophysical deformative stresses exerted upon the nervous system may alter gene expression, neuronal function and phenotypic expression...
February 21, 2017: American Journal of Medical Genetics. Part C, Seminars in Medical Genetics
https://www.readbyqxmd.com/read/28220287/the-yield-of-initial-conventional-mri-in-115-cases-of-angiographically-confirmed-spinal-vascular-malformations
#15
Amgad El Mekabaty, Carlos A Pardo, Philippe Gailloud
MRI is the primary screening tool for patients with myelopathy. The decision to obtain additional imaging, notably spinal angiography, is generally based on initial MRI findings. This study retrospectively analyzed the yield of initial MRI in a cohort of patients with angiographically confirmed vascular malformations. MRI obtained at symptom onset was available in 115 patients with either high-flow (29 cases) or low-flow (86 cases) vascular malformations. MRI was classified as "positive" when the report mentioned a vascular malformation or "negative" when considered normal or when another diagnosis was suggested...
February 20, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28219834/incidence-and-outcomes-of-central-nervous-system-hemophagocytic-lymphohistiocytosis-relapse-after-reduced-intensity-conditioning-hematopoietic-stem-cell-transplant
#16
Dana T Lounder, Pooja Khandelwal, Sharat Chandra, Michael B Jordan, Ashish R Kumar, Michael Grimley, Stella M Davies, Jack J Bleesing, Rebecca A Marsh
Hemophagocytic Lymphohistiocytosis (HLH) is an immune regulatory disorder that commonly presents with CNS involvement. The only cure for genetic HLH is hematopoietic stem cell transplantation (HSCT), typically treated with reduced intensity conditioning (RIC) regimens. We sought to estimate the incidence of CNS relapse after RIC HSCT, determine risk factors, and evaluate outcomes. We performed a retrospective chart review of 94 consecutive children and young adults with primary HLH who received RIC HSCT. CNS relapse within 1 year after transplant was diagnosed by review of clinical symptoms, cerebral spinal fluid (CSF), and radiologic findings...
February 17, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28217686/pregnancy-related-osteoporosis-and-spinal-fractures
#17
Ka Yeong Yun, Si Eun Han, Seung Chul Kim, Jong Kil Joo, Kyu Sup Lee
Pregnancy-related osteoporosis is a very rare condition characterized by the occurrence of fracture during pregnancy or the puerperium. Despite its relative rarity, it can be a dangerous condition that causes severe back pain, height loss and disability. Normal physiologic changes during pregnancy, genetic or racial difference, obstetrical history and obstetrical disease, such as preterm labor or pregnancy-induced hypertension, are presumed risk factors of pregnancy-related osteooporosis. However, exact etiology and pathogenesis are uncertain...
January 2017: Obstetrics & Gynecology Science
https://www.readbyqxmd.com/read/28216316/local-spinal-cord-circuits-and-bilateral-mauthner-cell-activity-function-together-to-drive-alternative-startle-behaviors
#18
Yen-Chyi Liu, Melina E Hale
The reticulospinal Mauthner cells (M-cells) of the startle circuit have been considered to be dedicated to one basic motor output and the C-type startle response in fish. The neural circuit underlying the C-start, a startle behavior in which the fish forms a "C"-shaped body bend has been described in depth in goldfish and zebrafish [1, 2] and is thought to occur in other species [3, 4]. However, previous research has shown that some species can perform a second type of startle called the S-start [5-7]. This startle response, in which the first movement creates an "S"-shaped body bend achieved with regional muscle activity on left and right sides, cannot be explained by M-cell circuit models...
February 9, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28214250/colorectal-cancer-screening-adherence-in-selected-disabilities-over-10-years
#19
Chelsea B Deroche, Suzanne W McDermott, Joshua R Mann, James W Hardin
INTRODUCTION: Colorectal cancer (CRC) is the second leading cause of cancer mortality in the U.S.; however, if the population aged 50 years or older received routine screening, approximately 60% of these deaths could be eliminated. This study investigates whether adults, aged 50-75 years, with one of three disabilities (blind/low vision [BLV], intellectual disability [ID], spinal cord injury [SCI]) receive CRC screening at rates equivalent to adults without the three disabilities, by accounting for combinations of recommended CRC screenings during a 10-year period (colonoscopy, sigmoidoscopy, fecal occult blood test)...
February 14, 2017: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/28213969/highly-efficient-neural-conversion-of-human-pluripotent-stem-cells-in-adherent-and-animal-free-conditions
#20
Dunja Lukovic, Andrea Diez Lloret, Petra Stojkovic, Daniel Rodríguez-Martínez, Maria Amparo Perez Arago, Francisco Javier Rodriguez-Jimenez, Patricia González-Rodríguez, José López-Barneo, Eva Sykova, Pavla Jendelova, Jelena Kostic, Victoria Moreno-Manzano, Miodrag Stojkovic, Shomi S Bhattacharya, Slaven Erceg
Neural differentiation of human embryonic stem cells (hESCs) and induced pluripotent stem cells (hiPSCs) can produce a valuable and robust source of human neural cell subtypes, holding great promise for the study of neurogenesis and development, and for treating neurological diseases. However, current hESCs and hiPSCs neural differentiation protocols require either animal factors or embryoid body formation, which decreases efficiency and yield, and strongly limits medical applications. Here we develop a simple, animal-free protocol for neural conversion of both hESCs and hiPSCs in adherent culture conditions...
February 18, 2017: Stem Cells Translational Medicine
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