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https://www.readbyqxmd.com/read/29148129/development-of-functional-electrical-stimulation-rowing-the-rowstim-series
#1
Brian Andrews, Robin Gibbons, Garry Wheeler
Potentially, functional electrical stimulation (FES)-assisted exercise may have an important therapeutic role in reducing comorbidities associated with spinal cord injury (SCI). Here, we present an overview of these secondary life-threatening conditions, discuss the rationale behind the development of a hybrid exercise called FES rowing, and describe our experience in developing FES rowing technology. FES rowing and sculling are unique forms of adaptive rowing for those with SCI. The paralyzed leg musculature is activated by multiple channels of electrical pulses delivered via self-adhesive electrodes attached to the skin...
November 2017: Artificial Organs
https://www.readbyqxmd.com/read/29144022/collagen-a-review-on-its-sources-and-potential-cosmetic-applications
#2
REVIEW
María Isabela Avila Rodríguez, Laura G Rodríguez Barroso, Mirna Lorena Sánchez
Collagen is a fibrillar protein that conforms the conjunctive and connective tissues in the human body, essentially skin, joints, and bones. This molecule is one of the most abundant in many of the living organisms due to its connective role in biological structures. Due to its abundance, strength and its directly proportional relation with skin aging, collagen has gained great interest in the cosmetic industry. It has been established that the collagen fibers are damaged with the pass of time, losing thickness and strength which has been strongly related with skin aging phenomena [Colágeno para todo...
November 16, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/29128864/association-of-%C3%AE-2-hs-glycoprotein-with-neurogenic-heterotopic-ossification-in-patients-with-spinal-cord-injury
#3
Liwei Dong, Guodong Dong, Jianye Cao, Jing Zhang
BACKGROUND The aim of this study was to explore the relationship between the α2-HS glycoprotein concentrations in serum and the occurrence of neurogenic heterotopic ossification (NHO) in patients with spinal cord injury (SCI). MATERIAL AND METHODS During the period between January 2011 and January 2012, 75 patients (67 male) with paraplegia caused by spinal cord injury were enrolled. The patients were divided into 2 groups in accordance with the occurrence of heterotopic ossification based on the results high-frequency ultrasound on the bilateral hip joint...
November 12, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29125102/role-of-methylprednisolone-in-treatment-of-spinal-cord-injured-with-bone-marrow-mesenchymal-stem-cells-transplantation-in-rats-and-its-effect-on-the-expressions-of-tumor-necrosis-factor-%C3%AE-and-interleukin-1%C3%AE
#4
Xin-Ming Yang, Yao-Yu Cheng, Zhen-Liang Zhang, Cong Kang
Objective To investigate the role of methylprednisolone (MP) in treatment of spinal cord injured (SCI) with bone marrow mesenchymal stem cells (BMSCs) transplantation in rats and its effect on the expressions of tumor necrosis factor-α(TNF-α) and interleukin-1β(IL-1β) at the local tissues.Methods Forty male Sprague-Dawley(SD) rats were used to establish the models of SCI according to the modified Allen's contusion method and then divided into four groups (n=10 in each group) by using random numbers table:MP group,BMSCs group,BMSCs+MP group,and control group...
October 30, 2017: Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
https://www.readbyqxmd.com/read/29107441/real-life-experience-with-hydroxyurea-in-sickle-cell-disease-a-multicenter-study-in-a-cohort-of-patients-with-heterogeneous-descent
#5
Paolo Rigano, Lucia De Franceschi, Laura Sainati, Antonio Piga, Frédéric B Piel, Maria Domenica Cappellini, Carmelo Fidone, Nicoletta Masera, Giovanni Palazzi, Barbara Gianesin, Gian Luca Forni
We conducted the first nation-wide cohort study of sickle cell disease (SCD) in Italy, a Southern European country exposed to intense recent flux migration from endemic areas for SCD. We evaluate the impact of hydroxyurea on a total of 652 pediatric and adult patients from 33 Reference Centers for SCD (mean age 24.5±15years, 51.4% males). Hydroxyurea median treatment duration was 7years (range: <1year to 29years) at a mean therapeutic dose of 18±4.7mg/kg/day. Hydroxyurea was associated with a significant increase in mean total and fetal hemoglobin and a significant decrease in mean hemoglobin S, white blood and platelet counts, and lactate dehydrogenase levels...
October 9, 2017: Blood Cells, Molecules & Diseases
https://www.readbyqxmd.com/read/29095439/epothilone-b-impairs-functional-recovery-after-spinal-cord-injury-by-increasing-secretion-of-macrophage-colony-stimulating-factor
#6
Liang Mao, Wei Gao, Shurui Chen, Ying Song, Changwei Song, Zipeng Zhou, Haosen Zhao, Kang Zhou, Wei Wang, Kunming Zhu, Chang Liu, Xifan Mei
The microtubule-stabilizing drug epothilone B (epoB) has shown potential value in the treatment of spinal cord injury (SCI) through diverse mechanisms. However, it remains elusive why a limited overall effect was observed. We aim to investigate the limiting factors underlying functional recovery promoted by epoB. The same SCI model treated by epoB was established as discussed previously. We used a cerebrospinal fluid (CSF) sample to assess the changes in cytokines in milieu of the SCI lesion site after epoB treatment...
November 2, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/29077222/class-iia-hdacs-inhibitor-tmp269-promotes-m1-polarization-of-macrophages-after-spinal-cord-injury
#7
Xiangbei Qi, Pengcheng Wang
Spinal cord injury (SCI) is a devastating disease insulting neurological system, and it could be further exacerbated by overwhelming inflammatory responses, where macrophages play a central role. Depending on their heterogeneous phenotypes, macrophages contribute intricately to SCI's pathological processes and functional recovery. Although stimuli like interferons and cytokines are known to regulate their phonotypical transition, it remains elusive which epigenetic programs macrophages engage to complete phenotype shift...
October 27, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29060077/weight-drop-impact-system-and-its-output-signal-analysis-for-inducing-large-animal-spinal-cord-injury-model
#8
Hyeongbeom Kim, Jong-Wan Kim, Jung-Keun Hyun, Phil-Sang Chung, Ilyong Park
Weight drop style impact systems can be used as a tool to induce the acute spinal cord injury (SCI) in large animals. We introduce our cost-effective impact system for the SCI modeling without using an expensive high speed camera and a vision system. And the practical output signals obtained in porcine in-vivo experiments using our system have been analyzed to check the effects of surrounding bones, tissues, and bleedings over the impacting target position in the spinal cord. By analyzing the output signals, the abnormal impact results hindered by the surrounding structures could have been separated from the normally impacted ones...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29054133/effects-of-intrathecal-injection-of-the-conditioned-medium-of-bone-marrow-stromal-cells-on-spinal-cord-injury-of-rats
#9
Kenji Kanekiyo, Tamami Wakabayashi, Norihiko Nakano, Yoshihiro Yamada, Masahiro Tamachi, Yoshihisa Suzuki, Masanori Fukushima, Fukuki Saito, Seiya Abe, Chihiro Tsukagoshi, Chimi Miyamoto, Chizuka Ide
Bone marrow stromal cells (BMSCs) have been studied for the treatment of spinal cord injury (SCI). In previous studies, we showed that the transplantation of BMSCs, even though they disappeared from the host spinal cord within 1-3 weeks after transplantation, improved locomotor behaviors and promoted axonal regeneration. This result led to the hypothesis that BMSCs might release some neurotrophic factors effective for the treatment of SCI. The present study examined this by injecting the conditioned medium (CM) of BMSCs to treat SCI in rats...
October 20, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29043391/analysis-of-the-evolution-of-cortical-and-trabecular-bone-compartments-in-the-proximal-femur-after-spinal-cord-injury-by-3d-dxa
#10
L Gifre, L Humbert, A Muxi, L Del Rio, J Vidal, E Portell, A Monegal, N Guañabens, P Peris
Marked trabecular and cortical bone loss was observed at the proximal femur short-term after spinal cord injury (SCI). 3D-DXA provided measurement of vBMD evolution at both femoral compartments and cortical thinning, thereby suggesting that this technique could be useful for bone analysis in these patients. INTRODUCTION: SCI is associated with a marked increase in bone loss and risk of osteoporosis development short-term after injury. 3D-DXA is a new imaging analysis technique providing 3D analysis of the cortical and trabecular bone from DXA scans...
October 17, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28963125/daily-parathyroid-hormone-administration-enhances-bone-turnover-and-preserves-bone-structure-after-severe-immobilization-induced-bone-loss
#11
Lauren Harlow, Karim Sahbani, Jeffry S Nyman, Christopher P Cardozo, William A Bauman, Hesham A Tawfeek
Immobilization, as a result of motor-complete spinal cord injury (SCI), is associated with severe osteoporosis. Whether parathyroid hormone (PTH) administration would reduce bone loss after SCI remains unclear. Thus, female mice underwent sham or surgery to produce complete spinal cord transection. PTH (80 μg/kg) or vehicle was injected subcutaneously (SC) daily starting on the day of surgery and continued for 35 days. Isolated tibias and femurs were examined by microcomputed tomography scanning (micro-CT) and histology and serum markers of bone turnover were measured...
September 2017: Physiological Reports
https://www.readbyqxmd.com/read/28938612/magnetic-resonance-imaging-tracking-and-assessing-repair-function-of-the-bone-marrow-mesenchymal-stem-cells-transplantation-in-a-rat-model-of-spinal-cord-injury
#12
Hongwu Zhang, Liqin Wang, Shihong Wen, Qingfeng Xiang, Xianhong Xiang, Caixia Xu, Yong Wan, Jingnan Wang, Bin Li, Yiqian Wan, Zhiyun Yang, David Y B Deng
The transplantation of bone marrow mesenchymal stem cells (BMSCs) to repair spinal cord injury (SCI) has become a promising therapy. However, there is still a lack of visual evidence directly implicating the transplanted cells as the source of the improvement of spinal cord function. In this study, BMSCs were labeled with NF-200 promoter and lipase-activated gadolinium-containing nanoparticles (Gd-DTPA-FA). Double labeled BMSCs were implanted into spinal cord transaction injury in rat models in situ, the function recovery was evaluated on 1st, 7th, 14th, 28 th days by MRI, Diffusion Tensor Imaing, CT imaging and post-processing, and histological observations...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28929919/evaluating-the-efficacy-of-functional-electrical-stimulation-therapy-assisted-walking-after-chronic-motor-incomplete-spinal-cord-injury-effects-on-bone-biomarkers-and-bone-strength
#13
B Catharine Craven, Lora M Giangregorio, S Mohammad Alavinia, Lindsie A Blencowe, Naaz Desai, Sander L Hitzig, Kei Masani, Milos R Popovic
To determine the efficacy of functional electrical stimulation therapy assisted walking (FES-T) compared to a conventional aerobic and resistance training (CONV) with respect to bone biomarkers and lower extremity bone strength outcomes among adults with chronic motor incomplete spinal cord injury (SCI). Design Parallel group randomized controlled trial ( www.clinicaltrials.gov - NCT0020196819). Site Tertiary academic rehabilitation centre in Canada. Methods Adults with chronic (≥18 months) motor incomplete SCI (C2-T12 AIS C-D) were consented and randomized to FES-T or CONV training for 45 minutes thrice-weekly for 4 months...
September 20, 2017: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/28914982/production-of-accurate-skeletal-models-of-domestic-animals-using-three-dimensional-scanning-and-printing-technology
#14
Fangzheng Li, Chunying Liu, Xuexiong Song, Yanjun Huan, Shansong Gao, Zhongling Jiang
Access to adequate anatomical specimens can be an important aspect in learning the anatomy of domestic animals. In this study, the authors utilized a structured light scanner and fused deposition modeling (FDM) printer to produce highly accurate animal skeletal models. First, various components of the bovine skeleton, including the femur, the fifth rib, and the sixth cervical (C6) vertebra were used to produce digital models. These were then used to produce 1:1 scale physical models with the FDM printer. The anatomical features of the digital models and three-dimensional (3D) printed models were then compared with those of the original skeletal specimens...
September 15, 2017: Anatomical Sciences Education
https://www.readbyqxmd.com/read/28906599/dual-extrusion-3d-printing-of-anatomical-models-for-education
#15
Michelle L Smith, James F X Jones
Two material 3D printing is becoming increasingly popular, inexpensive and accessible. In this paper, freely available printable files and dual extrusion fused deposition modelling were combined to create a number of functional anatomical models. To represent muscle and bone FilaFlex(3D) flexible filament and polylactic acid (PLA) filament were extruded respectively via a single 0.4 mm nozzle using a Big Builder printer. For each filament, cubes (5 mm(3) ) were printed and analyzed for X, Y, and Z accuracy...
September 14, 2017: Anatomical Sciences Education
https://www.readbyqxmd.com/read/28901182/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
#16
Jessica J Matyas, Andrew N Stewart, Alison 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...
August 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28854256/peripheral-denervation-participates-in-heterotopic-ossification-in-a-spinal-cord-injury-model
#17
Charlotte Debaud, Marjorie Salga, Laurent Begot, Xavier Holy, Malha Chedik, Nicolas de l'Escalopier, Fréderic Torossian, Jean-Pierre Levesque, Jean-Jacques Lataillade, Marie-Caroline Le Bousse-Kerdilès, François Genêt
We previously reported the development of a new acquired neurogenic HO (NHO) mouse model, combining spinal cord transection (SCI) and chemical muscle injury. Pathological mechanisms responsible for ectopic osteogenesis after central neurological damage are still to be elucidated. In this study, we first hypothesized that peripheral nervous system (PNS) might convey pathological signals from injured spinal cord to muscles in NHO mouse model. Secondly, we sought to determine whether SCI could lead to intramuscular modifications of BMP2 signaling pathways...
2017: PloS One
https://www.readbyqxmd.com/read/28851622/improved-stem-cell-therapy-of-spinal-cord-injury-using-gdnf-overexpressed-bone-marrow-stem-cells-in-a-rat-model
#18
Mostafa Shahrezaie, Reyhaneh Nassiri Mansour, Bahare Nazari, Hadi Hassannia, Fatemeh Hosseini, Hossein Mahboudi, Mohamad Eftekhary, Mousa Kehtari, Arash Veshkini, Abbas Ahmadi Vasmehjani, Seyed Ehsan Enderami
The use of stem cell base therapy as an effective strategy for the treatment of spinal cord injury (SCI) is very promising. Although some strategy has been made to generate neural-like cells using bone marrow mesenchymal stem cells (BMSCs), the differentiation strategies are still inefficiently. For this purpose, we improved the therapeutic outcome with utilize both of N-neurotrophic factor derived Gelial cells (GDNF) gene and differentiation medium that induce the BMSCs into the neural-like cells. The differentiated GDNF overexpressed BMSCs (BMSCs-GDNF) were injected on the third day of post-SCI...
August 26, 2017: Biologicals: Journal of the International Association of Biological Standardization
https://www.readbyqxmd.com/read/28842819/musculoskeletal-health-in-the-context-of-spinal-cord-injury
#19
REVIEW
Jillian M Clark, David M Findlay
PURPOSE OF REVIEW: This review assembles recent understanding of the profound loss of muscle and bone in spinal cord injury (SCI). It is important to try to understand these changes, and the context in which they occur, because of their impact on the wellbeing of SC-injured individuals, and the urgent need for viable preventative therapies. RECENT FINDINGS: Recent research provides new understanding of the effects of age and systemic factors on the response of bone to loading, of relevance to attempts to provide load therapy for bone in SCI...
October 2017: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/28804041/cell-therapy-as-a-new-approach-to-the-treatment-of-posttraumatic-syringomyelia
#20
Jesús Vaquero, Rasha Hassan, Cecilia Fernández, Gregorio Rodríguez-Boto, Mercedes Zurita
BACKGROUND: Cell transplantation with autologous bone marrow-derived mesenchymal stromal cells (MSCs) seems to be a therapeutic promise for patients with established spinal cord injury, achieving improvement in their quality of life, but there is no experience with the application of this type of cell therapy in patients suffering posttraumatic syringomyelia. OBJECTIVE: To study the possible utility of cell therapy with autologous MSCs in posttraumatic syringomyelia...
November 2017: World Neurosurgery
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