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Spinal cord respiratory

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https://www.readbyqxmd.com/read/28433644/supraspinal-respiratory-plasticity-following-acute-cervical-spinal-cord-injury
#1
Tatiana Bezdudnaya, Vitaliy Marchenko, Lyandysha V Zholudeva, Victoria M Spruance, Michael A Lane
Impaired breathing is a devastating result of high cervical spinal cord injuries (SCI) due to partial or full denervation of phrenic motoneurons, which innervate the diaphragm - a primary muscle of respiration. Consequently, people with cervical level injuries often become dependent on assisted ventilation and are susceptible to secondary complications. However, there is mounting evidence for limited spontaneous recovery of respiratory function following injury, demonstrating the neuroplastic potential of respiratory networks...
April 19, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28433350/open-repair-of-chronic-thoracic-and-thoracoabdominal-aortic-dissection-using-deep-hypothermia-and-circulatory-arrest
#2
Joel Corvera, Hannah Copeland, David Blitzer, Adam Hicks, Joshua Manghelli, Philip Hess, John Fehrenbacher
BACKGROUND: Chronic dissection of the thoracic and thoracoabdominal aorta as sequela of a prior type A or B dissection is a challenging problem that requires close radiographic surveillance and prompt operative intervention in the presence of symptoms or aneurysm formation. Open repair of chronic thoracic and thoracoabdominal aortic dissection using deep hypothermia has been our preferred method to treat this complex pathology. The advantages of this technique include organ and spinal cord protection, the flexibility to extend the repair proximally into the arch, and the ability to limit ischemia to all vascular beds...
March 18, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28409761/the-question-of-whether-or-not-to-perform-therapeutic-hypothermia-a-case-of-neonatal-spinal-cord-injury
#3
K Yokoi, S Kobayashi, K Muramatsu, S Suzuki, H Gotou
Neonatal spinal cord injury is an extremely rare perinatal complication that often occurs concurrently with hypoxic ischemic encephalopathy (HIE), further complicating diagnosis of spinal cord injury. Although therapeutic hypothermia for moderate to severe HIE is widely recommended in Japan, it is difficult to determine whether it satisfies the neurological findings-related entry criteria in some patients.We describe a female infant with neonatal spinal cord injury after forceps delivery, who underwent therapeutic hypothermia upon diagnosis of HIE...
April 8, 2017: Journal of Neonatal-perinatal Medicine
https://www.readbyqxmd.com/read/28400790/current-view-and-perspectives-in-amyotrophic-lateral-sclerosis
#4
REVIEW
Stéphane Mathis, Philippe Couratier, Adrien Julian, Philippe Corcia, Gwendal Le Masson
Amyotrophic lateral sclerosis (ALS), identified as a distinct clinical entity by Charcot since the end of the nineteenth century, is a devastating and fatal neurodegenerative disorder that affects motor neurons in the brain, brainstem and spinal cord. Survival of patients with ALS is associated with several factors such as clinical phenotype, age at onset, gender, early presence of respiratory failure, weight loss and treatment with Riluzole (the only disease-modifying drug approved for this disease). Nowadays, there is still no curative treatment for ALS: palliative care and symptomatic treatment are therefore essential components in the management of these patients...
February 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/28400726/review-of-epidural-spinal-cord-stimulation-for-augmenting-cough-after-spinal-cord-injury
#5
REVIEW
Jan T Hachmann, Jonathan S Calvert, Peter J Grahn, Dina I Drubach, Kendall H Lee, Igor A Lavrov
Spinal cord injury (SCI) remains a debilitating condition for which there is no cure. In addition to loss of somatic sensorimotor functions, SCI is also commonly associated with impairment of autonomic function. Importantly, cough dysfunction due to paralysis of expiratory muscles in combination with respiratory insufficiency can render affected individuals vulnerable to respiratory morbidity. Failure to clear sputum can aggravate both risk for and severity of respiratory infections, accounting for frequent hospitalizations and even mortality...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28397221/-mutation-analysis-and-prenatal-diagnosis-for-a-case-of-spinal-muscular-atrophy-with-respiratory-distress-type-1
#6
Biao Zhang, Dandan Guo, Jiaying Zheng, Xinxin Lu, Xiumin Zhang, Yan'an Wu
OBJECTIVE: To detect potential mutation of immunoglobulin μ -binding protein 2 (IGHMBP2) gene in a two-year-old patient with spinal muscular atrophy with respiratory distress type 1 (SMARD1). METHODS: Genomic DNA was extracted from peripheral blood sample from the patient and her parents, as well as cord blood sample from the fetus. Potential mutations of the coding region of the IGHMBP2 gene was detected with PCR and Sanger sequencing. RESULTS: A heterozygous missense mutation c...
April 10, 2017: Zhonghua Yi Xue Yi Chuan Xue za Zhi, Zhonghua Yixue Yichuanxue Zazhi, Chinese Journal of Medical Genetics
https://www.readbyqxmd.com/read/28396201/pharmacological-but-not-genetic-alteration-of-neural-epo-modifies-the-co2-h-central-chemosensitivity-in-postnatal-mice
#7
Sofien Laouafa, Anne-Sophie Perrin-Terrin, Florine Jeton, Elizabeth Elliot-Portal, Rose Tam, Laurence Bodineau, Nicolas Voituron, Jorge Soliz
Cerebral erythropoietin (Epo) plays a crucial role for respiratory control in newborn rodents. We showed previously that soluble Epo receptor (sEpoR: an Epo antagonist) reduces basal ventilation and hypoxic hyperventilation at postnatal day 10 (P10) and in adult mice. However, at these ages (P10 and adulthood), Epo had no effect on central chemosensitivity. Nevertheless, it is known that the sensitivity to CO2/H(+) during the mammalian respiratory network maturation process is age-dependent. Accordingly, in this study we wanted to test the hypothesis that cerebral Epo is involved in the breathing stimulation induced by the activation of central CO2/H(+) chemoreceptors at earlier postnatal ages...
April 8, 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/28389264/the-bulbospinal-network-controlling-the-phrenic-motor-system-laterality-and-course-of-descending-projections
#8
REVIEW
Michael George Zaki Ghali
The respiratory rhythm is generated by the parafacial respiratory group, Bötzinger complex, and pre-Bötzinger complex and relayed to pre-motor neurons, which in turn project to and control respiratory motor outputs in the brainstem and spinal cord. The phrenic nucleus is one such target, containing phrenic motoneurons (PhMNs), which supply the diaphragm, the primary inspiratory muscle in mammals. While some investigators have demonstrated both ipsi- and contralateral bulbophrenic projections, there exists controversy regarding the relative physiological contribution of each to phasic and tonic drive to PhMNs and at which levels decussations occur...
April 4, 2017: Neuroscience Research
https://www.readbyqxmd.com/read/28366305/off-the-shelf-multibranched-endograft-for-urgent-endovascular-repair-of-thoracoabdominal-aortic-aneurysms
#9
Enrico Gallitto, Mauro Gargiulo, Antonio Freyrie, Rodolfo Pini, Chiara Mascoli, Stefano Ancetti, Gianluca Faggioli, Andrea Stella
OBJECTIVE: The aim of this paper was to report early and midterm results of endovascular repair of urgent thoracoabdominal aortic aneurysms (TAAAs) by the off-the-shelf multibranched Zenith t-Branch endograft (Cook Medical, Bloomington, Ind). METHODS: Between January 2014 and April 2016, all patients with urgent TAAAs (asymptomatic with diameter >8 cm, symptomatic, or ruptured TAAAs) and aortoiliac anatomic feasibility underwent endovascular repair by t-Branch and were prospectively enrolled...
March 30, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28365473/pioglitazone-treatment-following-spinal-cord-injury-maintains-acute-mitochondrial-integrity-and-increases-chronic-tissue-sparing-and-functional-recovery
#10
Samir P Patel, David H Cox, Jenna L Gollihue, William M Bailey, Werner J Geldenhuys, John C Gensel, Patrick G Sullivan, Alexander G Rabchevsky
Pioglitazone is an FDA-approved PPAR-γ agonist drug used to treat diabetes, and it has demonstrated neuroprotective effects in multiple models of central nervous system (CNS) injury. Acute treatment after spinal cord injury (SCI) in rats is reported to suppress neuroinflammation, rescue injured tissues, and improve locomotor recovery. In the current study, we additionally assessed the protective efficacy of pioglitazone treatment on acute mitochondrial respiration, as well as functional and anatomical recovery after contusion SCI in adult male C57BL/6 mice...
March 30, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28345358/-instead-of-popping-pills-perhaps-you-should-add-frog-breathing-experiences-of-glossopharyngeal-insufflation-breathing-for-people-with-cervical-spinal-cord-injury
#11
Malin Nygren-Bonnier, Jens Werner, Gabriele Biguet, Sverker Johansson
BACKGROUND: People with cervical spinal cord injury have impaired function of the respiratory muscles, which results in reduced ventilation. Glossopharyngeal insufflation/breathing increases total lung capacity and improves cough function, however, knowledge of the experiences regarding learning and practicing glossopharyngeal insufflation in everyday life is missing. PURPOSE: To describe and explore the experiences of learning and practicing glossopharyngeal insufflation among people with cervical spinal cord injury...
March 27, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28332435/mild-acute-intermittent-hypoxia-improves-respiratory-function-in-unanesthetized-rats-with-midcervical-contusion
#12
Kun-Ze Lee, Shu-Chi Chiang, Yu-Jie Li
BACKGROUND: Mild intermittent hypoxia has been considered a potential approach to induce respiratory neuroplasticity. OBJECTIVE: The purpose of the present study was to investigate whether mild acute intermittent hypoxia can improve breathing function in a clinically relevant spinal cord injury animal model. METHODS: Adult male rats received laminectomy or unilateral contusion at the C3-C4 spinal cord using a MASCIS Impactor (height: 6.25 or 12...
April 2017: Neurorehabilitation and Neural Repair
https://www.readbyqxmd.com/read/28324618/thermogelling-chitosan-lactate-hydrogel-improves-functional-recovery-after-a-c2-spinal-cord-hemisection-in-rat
#13
Katarzyna Nawrotek, Tanguy Marqueste, Zofia Modrzejewska, Roman Zarzycki, Agnieszka Rusak, Patrick Decherchi
The present study was designed to provide an appropriate micro-environment for regenerating axotomized neurons and proliferating/migrating cells. Because of its intrinsic permissive properties, biocompatibility and biodegradability, we chose to evaluate the therapeutic effectiveness of a chitosan-based biopolymer. The biomaterial toxicity was measured through in vitro test based on fibroblast cell survival on thermogelling chitosan lactate hydrogel substrate and then polymer was implanted into a C2 hemisection of the rat spinal cord...
March 21, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28323759/hypercapnia-caused-by-a-therapeutic-dosage-of-pregabalin-in-a-tetraplegic-patient-with-cervical-spinal-cord-injury
#14
Kyung Hee Do, Eun Jung Choi, Min Cheol Chang, Hea-Eun Yang
Pregabalin is often used for the treatment of neuropathic pain in patients with spinal cord injury (SCI). We reported a patient with C5 [S(C5/C6)] ASIA Impairment Scale C SCI due to cervical myelopathy who presented CO2 retention when taking a therapeutic dosage of pregabalin. An 88-year-old patient with cervical SCI was transferred to the department of physical medicine and rehabilitation. When he had transferred, his neuropathic pain had been treated with 150-mg pregabalin per day (75 mg twice a day); however, he still exhibited severe neuropathic pain with a Numeric Pain Rating Scale score of 7 to 8...
March 20, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28319551/a-contemporary-medicolegal-analysis-of-implanted-devices-for-chronic-pain-management
#15
Christopher R Abrecht, Penny Greenberg, Ellen Song, Richard D Urman, James P Rathmell
BACKGROUND: Analysis of closed malpractice claims allows the study of rare but serious complications and likely results in improved patient safety by raising awareness of such complications. Clinical studies and closed claims analyses have previously reported on the common complications associated with intrathecal drug delivery systems (IDDS) and spinal cord stimulators (SCS). This study provides a contemporary analysis of claims from within the past 10 years. METHODS: We performed a closed claims analysis for a period January 1, 2009 to December 31, 2013 for cases with pain medicine as the primary service...
April 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28295616/associations-between-anesthetic-variables-and-functional-outcome-in-dogs-with-thoracolumbar-intervertebral-disk-extrusion-undergoing-decompressive-hemilaminectomy
#16
J Fenn, E Laber, K Williams, C A Rousse, P J Early, C L Mariani, K R Muñana, S De Decker, H A Volk, N J Olby
BACKGROUND: Outcome of acute experimental spinal cord injury is strongly associated with tissue perfusion and oxygenation. Cardiopulmonary depression could affect outcome in dogs undergoing general anesthesia for surgical treatment of thoracolumbar intervertebral disk extrusion (IVDE). HYPOTHESIS/OBJECTIVES: To evaluate the effects of general anesthesia on functional outcome in dogs undergoing surgery to treat thoracolumbar IVDE. ANIMALS: Eighty-four client-owned dogs with acute thoracolumbar IVDE treated by decompressive hemilaminectomy...
March 13, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28277546/decerebrate-mouse-model-for-studies-of-the-spinal-cord-circuits
#17
Claire F Meehan, Kyle A Mayr, Marin Manuel, Stan T Nakanishi, Patrick J Whelan
The adult decerebrate mouse model (a mouse with the cerebrum removed) enables the study of sensory-motor integration and motor output from the spinal cord for several hours without compromising these functions with anesthesia. For example, the decerebrate mouse is ideal for examining locomotor behavior using intracellular recording approaches, which would not be possible using current anesthetized preparations. This protocol describes the steps required to achieve a low-blood-loss decerebration in the mouse and approaches for recording signals from spinal cord neurons with a focus on motoneurons...
April 2017: Nature Protocols
https://www.readbyqxmd.com/read/28270863/respiratory-problems-and-management-in-people-with-spinal-cord-injury
#18
David J Berlowitz, Brooke Wadsworth, Jack Ross
Spinal cord injury (SCI) is characterised by profound respiratory compromise secondary to the level of loss of motor, sensory and autonomic control associated with the injury. This review aims to detail these anatomical and physiological changes after SCI, and outline their impact on respiratory function. Injury-related impairments in strength substantially alter pulmonary mechanics, which in turn affect respiratory management and care. Options for treatments must therefore be considered in light of these limitations...
December 2016: Breathe
https://www.readbyqxmd.com/read/28231269/a-mouse-model-of-paralytic-myelitis-caused-by-enterovirus-d68
#19
Alison M Hixon, Guixia Yu, J Smith Leser, Shigeo Yagi, Penny Clarke, Charles Y Chiu, Kenneth L Tyler
In 2014, the United States experienced an epidemic of acute flaccid myelitis (AFM) cases in children coincident with a nationwide outbreak of enterovirus D68 (EV-D68) respiratory disease. Up to half of the 2014 AFM patients had EV-D68 RNA detected by RT-PCR in their respiratory secretions, although EV-D68 was only detected in cerebrospinal fluid (CSF) from one 2014 AFM patient. Given previously described molecular and epidemiologic associations between EV-D68 and AFM, we sought to develop an animal model by screening seven EV-D68 strains for the ability to induce neurological disease in neonatal mice...
February 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28223038/nanoconjugate-bound-adenosine-a1-receptor-antagonist-enhances-recovery-of-breathing-following-acute-cervical-spinal-cord-injury
#20
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 20, 2017: Experimental Neurology
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