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https://www.readbyqxmd.com/read/28624824/effect-of-tnf-%C3%AE-inhibition-on-bone-marrow-derived-mesenchymal-stem-cells-in-neurological-function-recovery-after-spinal-cord-injury-via-the-wnt-signaling-pathway-in-a-rat-model
#1
Ren-Jun Peng, Bing Jiang, Xi-Ping Ding, He Huang, Yi-Wei Liao, Gang Peng, Quan Cheng, Jian Xi
AIM: The present study aimed to examine the effect of tumor necrosis factor-α (TNF-α) inhibition on bone marrow-derived mesenchymal stem cells (BMSCs) in neurological function recovery after spinal cord injury (SCI) via the Wnt signaling pathway in a rat model. METHODS: The rat model of SCI was established using Allen's method. Seventy-two adult male Sprague Dawley (SD) rats were randomly assigned into 4 groups (18 rats in each group): the sham control group, saline control group, BMSCs group (injection with BMSCs at the injured site) and BMSCs + TNF-α group (injection with BMSCs under TNF-α treatment at the injured site)...
June 15, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28616259/hyperphosphatemia-in-a-patient-with-spinal-cord-injury-who-received-etidronate-for-the-treatment-of-heterotopic-ossification
#2
Sahil Taravati, Ece Cinar, Yesim Akkoc
INTRODUCTION: Heterotopic ossification (HO) is defined as ectopic bone formation around peripheral joints and in soft tissues. HO is a common complication of diseases of the central nervous system, such as spinal cord injury (SCI) and traumatic brain injury. HO is seen in up to 50% of patients with SCI and typically occurs in the first 12 weeks after onset of injury. Although no treatment method is proven to be curative, nonsteroidal anti-inflammatory drugs, irradiation of the involved body part and bisphosphonates are commonly used in the management of HO...
2017: Spinal Cord Series and Cases
https://www.readbyqxmd.com/read/28616021/mri-analysis-and-clinical-significance-of-lower-extremity-muscle-cross-sectional-area-after-spinal-cord-injury
#3
REVIEW
Robert M Lester, Kori Johnson, Refka E Khalil, Rehan Khan, Ashraf S Gorgey
Shortly after spinal cord injury (SCI), the musculoskeletal system undergoes detrimental changes in size and composition, predominantly below the level of injury. The loss of muscle size and strength, along with increased immobility, predisposes persons with SCI to rapid and severe loss in bone mineral density and other health related consequences. Previous studies have highlighted the significance of measuring thigh muscle cross-sectional area, however, measuring the size and composition of muscles of the lower leg may provide insights on how to decrease the risk of various comorbidities...
May 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/28607522/agreement-between-fragility-fracture-risk-assessment-algorithms-as-applied-to-adults-with-chronic-spinal-cord-injury
#4
T Cervinka, C L Lynch, L Giangregorio, J D Adachi, A Papaioannou, L Thabane, B C Craven
STUDY DESIGN: Cross-sectional. OBJECTIVES: The objective of the study was to determine and report agreement in fracture risk stratification of adults with spinal cord injury (SCI) using (1) Canadian Association of Radiologists and Osteoporosis Canada (CAROC) and Canadian Fracture Risk Assessment (FRAX) tools with and without areal bone mineral density (aBMD) and (2) SCI-specific fracture thresholds. SETTING: Tertiary rehabilitation center, Ontario, Canada...
June 13, 2017: Spinal Cord
https://www.readbyqxmd.com/read/28580511/effect-of-recent-spinal-cord-injury-on-the-opg-rankl-system-and-its-relationship-with-bone-loss-and-the-response-to-denosumab-therapy
#5
L Gifre, S Ruiz-Gaspà, J L Carrasco, E Portell, J Vidal, A Muxi, A Monegal, N Guañabens, P Peris
There is marked bone loss after spinal cord injury (SCI); however, its pathogenesis and clinical management remain unclear. The increased circulating levels of receptor activator of nuclear factor kB ligand (RANKL) associated with bone loss shortly after SCI and the prevention of bone loss with denosumab treatment suggest a contributory role of RANKL in SCI-induced osteoporosis. INTRODUCTION: Bone turnover and bone loss are markedly increased shortly after SCI. However, the pathogenesis and clinical management of this process remain unclear, especially the role of the osteoprotegerin (OPG)/RANKL system in this disorder...
June 4, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28575969/li-activated-nanohydroxyapatite-doped-with-eu-3-ions-enhances-proliferative-activity-and-viability-of-human-stem-progenitor-cells-of-adipose-tissue-and-olfactory-ensheathing-cells-further-perspective-of-nhap-li-eu-3-application-in-theranostics
#6
Krzysztof Marycz, Paulina Sobierajska, Agnieszka Smieszek, Monika Maredziak, Katarzyna Wiglusz, Rafal J Wiglusz
Spinal cord injuries (SCI) often require simultaneous regeneration of nerve tissue and bone. Hydroxyapatites are described as bioresorbable materials with proper biocompatibility and osteoconductivity, therefore its application for spinal surgery is considered. In this paper, we present repeatable method for developing nanocrystalline calcium hydroxyapatites structurally modified with Li(+) ions (nHAP:Li(+)). Obtained biomaterials were profoundly characterized in terms of their physicochemical properties. Moreover, we have shown that nHAP:Li(+) doped with europium (Eu(3+)) may serve as a theranostic agent, what additionally extend its potential usage for SCI treatment...
September 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28565771/erythropoietin-facilitates-the-recruitment-of-bone-marrow-mesenchymal-stem-cells-to-sites-of-spinal-cord-injury
#7
Jun Li, Weichun Guo, Min Xiong, Shuangjie Zhang, Heng Han, Jie Chen, Dan Mao, Hualong Yu, Yun Zeng
Despite the successes of bone marrow mesenchymal stem cell (BMSC) transplantation for the treatment of spinal cord injuries, only a small fraction of grafted cells migrate to the target areas. Therefore, there remains a need for more efficient strategies of BMSC delivery. The present study was designed to explore this. Rat models of spinal cord injury (SCI) were established and exposed to phosphate buffered saline (control), BMSCs or BMSCs + erythropoietin (EPO). Basso, Beattie and Bresnahan (BBB) locomotor scale and grid walk tests were then utilized to estimate neurological rehabilitation...
May 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28561268/near-infrared-spectroscopy-for-measuring-changes-in-bone-hemoglobin-content-after-exercise-in-individuals-with-spinal-cord-injury
#8
Adina E Draghici, Diane Potart, Joseph L Hollmann, Vivian Pera, Qianqian Fang, Charles A DiMarzio, J Andrew Taylor, Mark J Niedre, Sandra J Shefelbine
Bone blood perfusion has an essential role in maintaining a healthy bone. However, current methods for measuring bone blood perfusion are expensive and highly invasive. This study presents a custom built near-infrared spectroscopy (NIRS) instrument to measure changes in bone blood perfusion. We demonstrated the efficacy of this device by monitoring oxygenated and deoxygenated hemoglobin changes in the human tibia during and after exercise in able-bodied and in individuals with spinal cord injury (SCI), a population with known impaired peripheral blood perfusion...
May 31, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28545316/lower-extremity-fractures-in-patients-with-spinal-cord-injury-characteristics-outcome-and-risk-factors-for-non-unions
#9
Lukas Grassner, Barbara Klein, Doris Maier, Volker Bühren, Matthias Vogel
CONTEXT: Sublesional osteoporosis is an important sequel after spinal cord injury (SCI) resulting in a high incidence of fractures and impaired osseous healing due to altered bone metabolism. The following study aims to identify demographic characteristics and outcome of patients with SCI with lower extremity fractures. DESIGN: Retrospective observational study. SETTING: Level-I cross-regional trauma center. PARTICIPANTS: All patients with SCI suffering from osteoporotic/pathologic fractures during an 11-year-period (01/2003-12/2013) at the Center for Spinal Cord Injuries (Trauma Center Murnau) were analyzed via a chart review...
May 25, 2017: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/28544582/evaluation-by-medical-students-of-the-educational-value-of-multi-material-and-multi-colored-three-dimensional-printed-models-of-the-upper-limb-for-anatomical-education
#10
Sreenivasulu Reddy Mogali, Wai Yee Yeong, Heang Kuan Joel Tan, Gerald Jit Shen Tan, Peter H Abrahams, Nabil Zary, Naomi Low-Beer, Michael Alan Ferenczi
For centuries, cadaveric material has been the cornerstone of anatomical education. For reasons of changes in curriculum emphasis, cost, availability, expertise, and ethical concerns, several medical schools have replaced wet cadaveric specimens with plastinated prosections, plastic models, imaging, and digital models. Discussions about the qualities and limitations of these alternative teaching resources are on-going. We hypothesize that three-dimensional printed (3DP) models can replace or indeed enhance existing resources for anatomical education...
May 19, 2017: Anatomical Sciences Education
https://www.readbyqxmd.com/read/28530017/mechanical-stress-by-spasticity-accelerates-fracture-healing-after-spinal-cord-injury
#11
Naoyoshi Sakitani, Hiroyuki Iwasawa, Masato Nomura, Yasushi Miura, Hiroshi Kuroki, Junya Ozawa, Hideki Moriyama
Accelerated fracture healing in patients with spinal cord injuries (SCI) is often encountered in clinical practice. However, there is no distinct evidence in the accelerated fracture healing, and the mechanisms of accelerated fracture healing in SCI are poorly understood. We aimed to determine whether SCI accelerated fracture healing in morphology and strength, to characterize the healing process with SCI, and to clarify the factors responsible for accelerated fracture healing. In total, 39 male Wistar rats were randomly divided into healthy control without intervention, SCI only, fracture with SCI, botulinum toxin (BTX) A-treated fracture with SCI, and propranolol-treated fracture with SCI groups...
May 22, 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/28524176/lentivirus-mediated-microrna-124-gene-modified-bone-marrow-mesenchymal-stem-cell-transplantation-promotes-the-repair-of-spinal-cord-injury-in-rats
#12
Jia-Lin Song, Wei Zheng, Wei Chen, Yun Qian, Yuan-Ming Ouyang, Cun-Yi Fan
Our study aims to explore the effects of lentivirus-mediated microRNA-124 (miR-124) gene-modified bone marrow mesenchymal stem cell (BMSC) transplantation on the repair of spinal cord injury (SCI) in rats. BMSCs were isolated from the bone marrow of rats. The target gene miR-124 was identified using a luciferase-reporter gene assay. Seventy-two rats were selected for construction of the SCI model, and the rats were randomly divided into the blank group, sham group, SCI group, negative control (NC) group, overexpressed miR-124 group and si-PDXK group...
May 19, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/28514761/zbtb38-is-a-novel-target-for-spinal-cord-injury
#13
Yafei Cai, Jun Li, Zongmeng Zhang, Jing Chen, Yangzi Zhu, Rui Li, Jie Chen, Lixia Gao, Rong Liu, Yong Teng
Spinal cord injury (SCI) is currently incurable since treatments applied to clinic are limited to minimizing secondary complications and the mechanisms of injury-induced spinal cord damage are poorly understood. Zbtb38, also called CIBZ, is highly expressed in spinal cord and it functions as a negative regulator in SCI-induced apoptosis. We show here that Zbtb38 is downregulated under endoplasmic reticulum (ER) stress, which promotes ER stress-associated apoptosis in human bone marrow neuroblastoma cells. In the traumatic SCI mice, ER stress presented in injured spinal cord induced repression of Zbtb38 expression and triggered Zbtb38-mediated apoptosis...
April 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28499241/pathophysiology-mechanisms-and-applications-of-mesenchymal-stem-cells-for-the-treatment-of-spinal-cord-injury
#14
REVIEW
Pravin Shende, Muna Subedi
Spinal Cord Injury (SCI) is a serious devastating condition associated to the high chances of morbidity and mortality. It involves a primary and a secondary injury, former cause damages to both lower and upper motor neurones and disrupts sensory, motor and autonomic functions while the latter involves various stages of molecular plus cellular incidents which elaborate the original injury. In the treatment of SCI, stem cells possess a good therapeutic potential. Bone marrow, adipose tissue, placenta, amniotic fluid and umbilical cord are the good sources for mesenchymal stem cells...
July 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28497215/evidence-based-prevention-and-treatment-of-osteoporosis-after-spinal-cord-injury-a-systematic-review
#15
REVIEW
Saeed Soleyman-Jahi, Ali Yousefian, Radin Maheronnaghsh, Farhad Shokraneh, Shayan Abdollah Zadegan, Akbar Soltani, Seyed Mostafa Hosseini, Alexander R Vaccaro, Vafa Rahimi-Movaghar
PURPOSE: Spinal cord injury (SCI) results in accelerated bone mineral density (BMD) loss and disorganization of trabecular bone architecture. The mechanisms underlying post-SCI osteoporosis are complex and different from other types of osteoporosis. Findings of studies investigating efficacy of pharmacological or rehabilitative interventions in SCI-related osteoporosis are controversial. The aim of this study was to review the literature pertaining to prevention and evidence-based treatments of SCI-related osteoporosis...
May 11, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28483687/femoral-and-lumbar-fractures-during-rehabilitation-for-a-traumatic-spinal-cord-injury-in-osteogenesis-imperfecta-a-case-presentation
#16
Brendon S Ross, David Ripley, Anna M Ho, Leslie Rydberg
Osteogenesis imperfecta (OI) is one of the most common inherited bone disorders. These individuals are high-risk for developing fractures during their lifetime secondary to bone fragility. This case presents a female with type I OI involved in a high speed motor vehicle accident resulting in a traumatic spinal cord injury (SCI) and paraplegia. Inpatient rehabilitation was complicated by fractures of the femur and lumbar spine which impacted her level of independence upon discharge to prevent additional fractures and maintain safety...
May 5, 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/28479140/cannabidiol-administration-reduces-sublesional-cancellous-bone-loss-in-rats-with-severe-spinal-cord-injury
#17
Dehao Li, Zilin Lin, Qingyi Meng, Kun Wang, Jiajia Wu, Hongda Yan
Patients with spinal cord injury (SCI) undergo severe loss of bone mineral below the level of lesion, and data on available treatment options after SCI is scarce. The aim of this work was to investigate the therapeutic effect of cannabidiol (CBD), a non-psychoactive cannabis, on sublesional bone loss in a rat model of SCI. The adult male rats were exposed to surgical transection of the cord and treated with CBD for consecutive 14 days. It was found that CBD treatment elevated the serum levels of osteocalcin, reduced the serum levels of collagen type I cross-linked C-telopeptide, and enhanced bone mineral density of tibiae and femurs...
May 4, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28472894/resting-energy-expenditure-in-male-athletes-with-a-spinal-cord-injury
#18
Fiona E Pelly, Elizabeth M Broad, Natalie Stuart, Mark A Holmes
OBJECTIVE: To investigate whether there are differences in the resting energy expenditure (REE) and body composition of athletes with a spinal cord injury (SCI) compared to active able-bodied controls. DESIGN: In this cross sectional study, male athletes with a SCI were compared to active able-bodied controls matched for age, stretch stature and body mass. In addition, the accuracy of standard REE prediction equations in estimating REE was assessed. PARTICIPANTS: Seven male wheelchair athletes with a SCI and six matched active able-bodied controls volunteered to participate...
May 4, 2017: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/28447572/effects-of-bone-marrow-derived-msc-transplantation-on-functional-recovery-in-a-rat-model-of-spinal-cord-injury-comparisons-of-transplant-locations-and-cell-concentrations
#19
Jessica J Matyas, Andrew N Stewart, Allison Goldsmith, Zhenhong Nan, Reid L Skeel, Julien Rossignol, Gary L Dunbar
Spinal cord injury (SCI) is a widely disabling condition, constraining those affected by it to wheelchairs and requiring intense daily care and assistance. Cell replacement therapies, targeting regeneration of cells in the injured cord, are currently gaining momentum in the field of SCI research. Previous studies indicate that mesenchymal stem cells (MSCs) can reduce functional deficits through immunomodulation and production of trophic factors in a variety of neurological disorders. The present study assessed the efficacy of transplanted bone marrow-derived MSCs at different concentrations and locations for promoting functional recovery following SCI...
April 26, 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28433727/superficial-swab-versus-deep-tissue-biopsy-for-the-microbiological-diagnosis-of-local-infection-in-advanced-stage-pressure-ulcers-of-spinal-cord-injured-patients-a-prospective-study
#20
Sara Tedeschi, Luca Negosanti, Rossella Sgarzani, Filippo Trapani, Salvatore Pignanelli, Micaela Battilana, Rita Capirossi, Donatella Brillanti Ventura, Maddalena Giannella, Michele Bartoletti, Fabio Tumietto, Francesco Cristini, Pierluigi Viale
OBJECTIVE: To assess the predictive value of superficial ulcer swab culture to make a microbiological diagnosis of deep wound infections in spinal cord injury (SCI) patients with advanced-stage pressure ulcers (PU). METHODS: From July 2011 to February 2014, we performed a prospective, single-centre study on adult SCI patients undergoing scheduled surgical debridement and reconstruction for advanced-stage PU, at Montecatone Rehabilitation Institute, a 150-bed hospital dedicated to SCI care...
April 19, 2017: Clinical Microbiology and Infection
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