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Muscle injury treatment

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https://www.readbyqxmd.com/read/28801079/re-raising-muscle-flaps-a-randomised-controlled-animal-study
#1
K Bradshaw, M Wagels
BACKGROUND: In the experience of our centre, 33% of reconstructed compound lower limb injuries will need an orthopaedic revision.(1) A flap may be re-raised through numerous methods, and historically, the approach of choice has been based on the principle of protecting the vascular pedicle rather than the inset. Our aim was to determine whether a marginal versus a split approach to re-raising inferred a higher risk of flap necrosis and whether more attention should be paid to protecting the inset of the flap, particularly at the distal portion...
July 18, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28800920/does-platelet-rich-plasma-lead-to-earlier-return-to-sport-when-compared-with-conservative-treatment-in-acute-muscle-injuries-a-systematic-review-and-meta-analysis
#2
Ujash Sheth, Tim Dwyer, Ira Smith, David Wasserstein, John Theodoropoulos, Sachdeep Takhar, Jaskarndip Chahal
PURPOSE: To compare the time to return to sport and reinjury rate after platelet-rich plasma (PRP) injection versus control therapy (i.e., physiotherapy or placebo injection) in patients with acute grade I or II muscle strains. METHODS: All eligible studies comparing PRP against a control in the treatment of acute (≤7 days) grade I or II muscle strains were identified. The primary outcome was time to return to play. The secondary outcome was the rate of reinjury at a minimum of 6 months of follow-up...
August 8, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28798140/the-hemoglobin-homolog-cytoglobin-in-smooth-muscle-inhibits-apoptosis-and-regulates-vascular-remodeling
#3
Frances L Jourd'heuil, Haiyan Xu, Timothy Reilly, Keneta McKellar, Chaymae El Alaoui, Julia Steppich, Yong Feng Liu, Wen Zhao, Roman Ginnan, David Conti, Reynold Lopez-Soler, Arif Asif, Rebecca K Keller, John J Schwarz, Le Thi Thanh Thuy, Norifumi Kawada, Xiaochun Long, Harold A Singer, David Jourd'heuil
OBJECTIVE: The role of hemoglobin and myoglobin in the cardiovascular system is well established, yet other globins in this context are poorly characterized. Here, we examined the expression and function of cytoglobin (CYGB) during vascular injury. APPROACH AND RESULTS: We characterized CYGB content in intact vessels and primary vascular smooth muscle (VSM) cells and used 2 different vascular injury models to examine the functional significance of CYGB in vivo. We found that CYGB was strongly expressed in medial arterial VSM and human veins...
August 10, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28796827/impact-of-ghrelin-on-body-composition-and-muscle-function-in-a-long-term-rodent-model-of-critical-illness
#4
Neil E Hill, Kevin G Murphy, Saima Saeed, Rahul Phadke, Darren Chambers, Duncan R Wilson, Stephen J Brett, Mervyn Singer
BACKGROUND: Patients with multiple injuries or sepsis requiring intensive care treatment invariably develop a catabolic state with resultant loss of lean body mass, for which there are currently no effective treatments. Recovery can take months and mortality is high. We hypothesise that treatment with the orexigenic and anti-inflammatory gastric hormone, ghrelin may attenuate the loss of body mass following critical illness and improve recovery. METHODS: Male Wistar rats received an intraperitoneal injection of the fungal cell wall derivative zymosan to induce a prolonged peritonitis and consequent critical illness...
2017: PloS One
https://www.readbyqxmd.com/read/28795275/effects-of-photobiomodulation-therapy-and-topical-non-steroidal-anti-inflammatory-drug-on-skeletal-muscle-injury-induced-by-contusion-in-rats-part-2-biochemical-aspects
#5
Shaiane Silva Tomazoni, Lúcio Frigo, Tereza Cristina Dos Reis Ferreira, Heliodora Leão Casalechi, Simone Teixeira, Patrícia de Almeida, Marcelo Nicolas Muscara, Rodrigo Labat Marcos, Andrey Jorge Serra, Paulo de Tarso Camillo de Carvalho, Ernesto Cesar Pinto Leal-Junior
Muscle injuries trigger an inflammatory process, releasing important biochemical markers for tissue regeneration. The use of non-steroidal anti-inflammatory drugs (NSAIDs) is the treatment of choice to promote pain relief due to muscle injury. NSAIDs exhibit several adverse effects and their efficacy is questionable. Photobiomodulation therapy (PBMT) has been demonstrated to effectively modulate inflammation induced from musculoskeletal disorders and may be used as an alternative to NSAIDs. Here, we assessed and compared the effects of different doses of PBMT and topical NSAIDs on biochemical parameters during an acute inflammatory process triggered by a controlled model of contusion-induced musculoskeletal injury in rats...
August 9, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28771790/motoneuron-activity-is-required-for-enhancements-in-functional-recovery-after-peripheral-nerve-injury-in-exercised-female-mice
#6
Poonam B Jaiswal, Jack K Tung, Robert E Gross, Arthur W English
Inhibitory luminopsins (iLMO2) integrate opto- and chemo-genetic approaches and allow for cell-type specific inhibition of neuronal activity. When exposed to a Renilla luciferase substrate, Coelenterazine (CTZ), iLMO2 generates bioluminescence-mediated activation of its amino-terminal halorhodopsin, resulting in neuronal inhibition. Moderate daily exercise in the form of interval treadmill-training (IT) applied following a peripheral nerve injury results in enhanced motor axon regeneration and muscle fiber reinnervation in female mice...
August 3, 2017: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/28771534/neural-stem-cell-mediated-recovery-is-enhanced-by-chondroitinase-abc-pretreatment-in-chronic-cervical-spinal-cord-injury
#7
Hidenori Suzuki, Christopher S Ahuja, Ryan P Salewski, Lijun Li, Kajana Satkunendrarajah, Narihito Nagoshi, Shinsuke Shibata, Michael G Fehlings
Traumatic spinal cord injuries (SCIs) affect millions of people worldwide; the majority of whom are in the chronic phase of their injury. Unfortunately, most current treatments target the acute/subacute injury phase as the microenvironment of chronically injured cord consists of a well-established glial scar with inhibitory chondroitin sulfate proteoglycans (CSPGs) which acts as a potent barrier to regeneration. It has been shown that CSPGs can be degraded in vivo by intrathecal Chondroitinase ABC (ChABC) to produce a more permissive environment for regeneration by endogenous cells or transplanted neural stem cells (NSCs) in the subacute phase of injury...
2017: PloS One
https://www.readbyqxmd.com/read/28767917/action-of-vanillin-vanilla-planifolia-on-the-morphology-of-tibialis-anterior-and-soleus-muscles-after-nerve-injury
#8
Ana Luiza Peretti, Juliana Sobral Antunes, Keli Lovison, Regina Inês Kunz, Lidyane Regina Gomes Castor, Rose Meire Costa Brancalhão, Gladson Ricardo Flor Bertolini, Lucinéia de Fátima Chasko Ribeiro
Objective: To evaluate the action of vanillin (Vanilla planifolia) on the morphology of tibialis anterior and soleus muscles after peripheral nerve injury. Methods: Wistar rats were divided into four groups, with seven animals each: Control Group, Vanillin Group, Injury Group, and Injury + Vanillin Group. The Injury Group and the Injury + Vanillin Group animals were submitted to nerve injury by compression of the sciatic nerve; the Vanillin Group and Injury + Vanillin Group, were treated daily with oral doses of vanillin (150mg/kg) from the 3rd to the 21st day after induction of nerve injury...
April 2017: Einstein
https://www.readbyqxmd.com/read/28765896/1-25-oh-2d3-treatment-attenuates-high-glucose%C3%A2-induced-peritoneal-epithelial-to-mesenchymal-transition-in-mice
#9
Lina Yang, Yi Fan, Xiuli Zhang, Wenyu Huang, Jianfei Ma
It has been previously demonstrated that 1,25(OH)2D3 prevents the progression of epithelial to mesenchymal transition (EMT). However, it remains unclear whether 1,25(OH)2D3 has a role in peritoneal EMT stimulated by high glucose (HG) peritoneal dialysis fluid (PDF). The present study was performed to investigate the role of 1,25(OH)2D3 in the progression of EMT in the peritoneal mesothelium. A total of 35 male Kunming mice were randomly assigned into seven groups. In the control group, no diasylate or saline was infused...
July 27, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28763748/the-therapeutic-effects-of-yongdamsagan-tang-on-autoimmune-hepatitis-models
#10
Jiyoung Park, Hayeon Kim, In-Seung Lee, Kang-Hoon Kim, Yumi Kim, Yun-Cheol Na, Jang-Hoon Lee, Hyeung-Jin Jang
Autoimmune hepatitis (AIH) is an immunity disorder that is the result of antibodies in the liver tissue of the patient that are attacked by activated immune cells due to an unknown cause. In this study, we aimed to investigate the anti-inflammatory effect of Yongdamsagan-tang (YST) extracts and confirm effects on autoimmune hepatitis models as the therapeutic agent using the YST extracted by various solvents. YST, a mixture of 11 herbal extracts, is known in traditional Korean medicine as a widely used treatment for inflammatory diseases...
July 29, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28762694/pelvic-organ-prolapse
#11
REVIEW
Cheryl B Iglesia, Katelyn R Smithling
Pelvic organ prolapse is the descent of one or more of the anterior vaginal wall, posterior vaginal wall, the uterus (cervix), or the apex of the vagina (vaginal vault or cuff scar after hysterectomy). Prevalence increases with age. The cause of prolapse is multifactorial but is primarily associated with pregnancy and vaginal delivery, which lead to direct pelvic floor muscle and connective tissue injury. Hysterectomy, pelvic surgery, and conditions associated with sustained episodes of increased intra-abdominal pressure, including obesity, chronic cough, constipation, and repeated heavy lifting, also contribute to prolapse...
August 1, 2017: American Family Physician
https://www.readbyqxmd.com/read/28761434/brain-injury-in-combination-with-tacrolimus-promotes-the-regeneration-of-injured-peripheral-nerves
#12
Xin-Ze He, Jian-Jun Ma, Hao-Qi Wang, Tie-Min Hu, Bo Sun, Yun-Feng Gao, Shi-Bo Liu, Wei Wang, Pei Wang
Both brain injury and tacrolimus have been reported to promote the regeneration of injured peripheral nerves. In this study, before transection of rat sciatic nerve, moderate brain contusion was (or was not) induced. After sciatic nerve injury, tacrolimus, an immunosuppressant, was (or was not) intraperitoneally administered. At 4, 8 and 12 weeks after surgery, Masson's trichrome, hematoxylin-eosin, and toluidine blue staining results revealed that brain injury or tacrolimus alone or their combination alleviated gastrocnemius muscle atrophy and sciatic nerve fiber impairment on the experimental side, simultaneously improved sciatic nerve function, and increased gastrocnemius muscle wet weight on the experimental side...
June 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/28761372/application-of-advanced-biomechanical-methods-in-studying-low-back-pain-recent-development-in-estimation-of-lower-back-loads-and-large-array-surface-electromyography-and-findings
#13
REVIEW
Babak Bazrgari, Ting Xia
Low back pain (LBP) is a major public health problem and the leading disabling musculoskeletal disorder globally. A number of biomechanical methods using kinematic, kinetic and/or neuromuscular approaches have been used to study LBP. In this narrative review, we report recent developments in two biomechanical methods: estimation of lower back loads and large-array surface electromyography (LA-SEMG) and the findings associated with LBP. The ability to estimate lower back loads is very important for the prevention and the management of work-related low back injuries based on the mechanical loading model as one category of LBP classification...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28758137/sciatic-nerve-injury-after-proximal-hamstring-avulsion-and-repair
#14
Thomas J Wilson, Robert J Spinner, Rohith Mohan, Christopher M Gibbs, Aaron J Krych
BACKGROUND: Muscle bellies of the hamstring muscles are intimately associated with the sciatic nerve, putting the sciatic nerve at risk of injury associated with proximal hamstring avulsion. There are few data informing the magnitude of this risk, identifying risk factors for neurologic injury, or determining neurologic outcomes in patients with distal sciatic symptoms after surgery. PURPOSE: To characterize the frequency and nature of sciatic nerve injury and distal sciatic nerve-related symptoms after proximal hamstring avulsion and to characterize the influence of surgery on these symptoms...
July 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28758111/the-neuroprotective-effects-of-muscle-derived-stem-cells-via-brain-derived-neurotrophic-factor-in-spinal-cord-injury-model
#15
Donghe Han, Shurui Chen, Shiqiang Fang, Shiqiong Liu, Meihua Jin, Zhanpeng Guo, Yajiang Yuan, Yansong Wang, Chang Liu, Xifan Mei
Muscle-derived stem cells (MDSCs) possess multipotent differentiation and self-renewal capacities; however, the effects and mechanism in neuron injury remain unclear. The aim of this study was to investigate the effects of MDSCs on neuron secondary injury, oxidative stress-induced apoptosis. An in vivo study showed the Basso, Beattie, and Bresnahan (BBB) score and number of neurons significantly increased after MDSCs' transplantation in spinal cord injury (SCI) rats. An in vitro study demonstrated that MDSCs attenuated neuron apoptosis, and the expression of antioxidants was upregulated as well as the ratio of Bcl-2 and Bax in the MNT (MDSCs cocultured with injured neurons) group compared with the NT (injured neurons) group...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28757442/endothelin-receptor-mediated-ca-2-signaling-in-coronary-arteries-after-experimentally-induced-ischemia-reperfusion-injury-in-rat
#16
Sarah Brøgger Kristiansen, Kristian A Haanes, Majid Sheykhzade, Lars Edvinsson
BACKGROUND: Acute myocardial infarction is one of the leading causes of death. It is caused by a blockage of a coronary artery leading to reduced blood flow to the myocardium and hence ischemic damage. In addition, a second wave of damage after the flow has been restored, named reperfusion injury greatly exacerbate the damage. For the latter, no medical treatment exist. In this study the aim was to characterize Ca(2+) sensitivity in coronary arteries following experimental ischemia/reperfusion injury...
July 27, 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/28756524/muscle-satellite-cells-are-functionally-impaired-in-myasthenia-gravis-consequences-on-muscle-regeneration
#17
Mohamed Attia, Marie Maurer, Marieke Robinet, Fabien Le Grand, Elie Fadel, Rozen Le Panse, Gillian Butler-Browne, Sonia Berrih-Aknin
Myasthenia gravis (MG) is a neuromuscular disease caused in most cases by anti-acetyl-choline receptor (AChR) autoantibodies that impair neuromuscular signal transmission and affect skeletal muscle homeostasis. Myogenesis is carried out by muscle stem cells called satellite cells (SCs). However, myogenesis in MG had never been explored. The aim of this study was to characterise the functional properties of myasthenic SCs as well as their abilities in muscle regeneration. SCs were isolated from muscle biopsies of MG patients and age-matched controls...
July 29, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28755625/x-ray-irradiation-has-positive-effects-for-the-recovery-of-peripheral-nerve-injury-maybe-through-the-vascular-smooth-muscle-contraction-signaling-pathway
#18
Bo Jiang, Yong Zhang, Chang She, Jiaju Zhao, Kailong Zhou, Zhicheng Zuo, Xiaozhong Zhou, Peiji Wang, Qirong Dong
INTRODUCTION: It is well known that moderate to high doses of ionizing radiation have a toxic effect on the organism. However, there are few experimental studies on the mechanisms of LDR ionizing radiation on nerve regeneration after peripheral nerve injury. METHODS: We established the rats' peripheral nerve injury model via repaired Peripheral nerve injury nerve, vascular endothelial growth factor a and Growth associated protein-43 were detected from different treatment groups...
July 22, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28753907/shikonin-ameliorates-isoproterenol-iso-induced-myocardial-damage-through-suppressing-fibrosis-inflammation-apoptosis-and-er-stress
#19
Jun Yang, Zhao Wang, Dong-Lin Chen
Shikonin, isolated from the roots of herbal plant Lithospermum erythrorhizon, is a naphthoquinone. It has been reported to exert beneficial anti-inflammatory effects and anti-oxidant properties in various diseases. Isoproterenol (ISO) has been widely used to establish cardiac injury in vivo and in vitro. However, shikonin function in ISO-induced cardiac injury remains uncertain. In our study, we attempted to investigate the efficiency and possible molecular mechanism of shikonin in cardiac injury treatment induced by ISO...
September 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28753620/treatment-combining-aliskiren-with-paricalcitol-is-effective-against-progressive-renal-tubulointerstitial-fibrosis-via-dual-blockade-of-intrarenal-renin
#20
Sungjin Chung, Soojeong Kim, Minyoung Kim, Eun Sil Koh, Seok Joon Shin, Cheol Whee Park, Yoon Sik Chang, Ho-Shik Kim
The aim of this study was to assess any potential additive effects of a treatment combining aliskiren with paricalcitol on reducing renal fibrosis. C57BL/6J mice were treated individually with aliskiren and/or paricalcitol until 7 days after initiation of unilateral ureteral obstruction (UUO).In obstructed kidneys of UUO mice, monotherapy with aliskiren or paricalcitol significantly attenuated interstitial fibrosis, collagen IV accumulation, and α-smooth muscle actin- and terminal deoxynucleotidyl transferase-mediated biotin nick end-labeling-positive cells...
2017: PloS One
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