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https://www.readbyqxmd.com/read/29245175/development-and-testing-of-a-hybrid-measure-of-muscle-strength-in-juvenile-dermatomyositis-for-use-in-routine-care
#1
Giulia Camilla Varnier, Silvia Rosina, Cristina Ferrari, Angela Pistorio, Alessandro Consolaro, Francesca Bovis, Sara Dalprà, Clarissa Pilkington, Susan Maillard, Adele Civino, Elena Tsitsami, Jaime de Inocencio, Marija Jelusic, Jelena Vojinovic, Graciela Espada, Balahan Makay, Maria Martha Katsicas, Polixeni Pratsidou-Gertsi, Dragana Lazarevic, Anand Prahalad Rao, Denise Pires Marafon, Nicolino Ruperto, Alberto Martini, Angelo Ravelli
OBJECTIVE: To develop and test a hybrid measure of muscle strength for juvenile dermatomyositis (JDM), which is based on the combination of the Manual Muscle Testing 8 (MMT8) and the Childhood Myositis Assessment Scale (CMAS), but is more comprehensive than the former and more feasible than the latter. METHODS: The hybrid MMT/CMAS (hMC) is composed of all 8 items of the MMT8 and 3 items of the CMAS: 1) time of head lift; 2) assessment of abdominal muscles; 3) floor rise...
December 15, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/29245171/effects-of-atorvastatin-on-autophagy-in-skeletal-muscles-of-diabetic-rats
#2
Bingquan Yang, Jie Sun, Yang Yuan, Zilin Sun
AIMS/INTRODUCTION: Atorvastatin is usually used to decrease the amount of fatty substances in individuals with type 2 diabetes mellitus. However, it can cause side effects, such as breakdown of skeletal muscle tissue. This study focuses on the effects of atorvastatin on autophagy of the skeletal muscles in diabetic rats. MATERIALS AND METHODS: Diabetes in rats in the diabetic (D) and atorvastatin (T) groups was induced using streptozotocin (65 mg/kg, intraperitoneal injection)...
December 15, 2017: Journal of Diabetes Investigation
https://www.readbyqxmd.com/read/29245147/levels-of-trace-elements-methylmercury-and-polybrominated-diphenyl-ethers-in-foraging-green-turtles-in-the-south-china-region-and-their-conservation-implications
#3
Connie Ka Yan Ng, James Chung Wah Lam, Xiao Hua Zhang, He Xiang Gu, Tsung Hsien Li, Min Bin Ye, Zhong Rong Xia, Fei Yan Zhang, Jin Xia Duan, Wen Xiong Wang, Isaac Kam Sum Lam, George H Balazs, Paul K S Lam, Margaret B Murphy
Sea turtles are globally endangered and face daily anthropogenic threats, including pollution. However, there is a lack of ecotoxicological information on sea turtles, especially in the Asia-Pacific region. This study aims to determine pollutant levels of foraging green turtles (Chelonia mydas) in South China, including Hong Kong, Guangdong and Taiwan, as a basis for their conservation. Scute, liver and muscle tissues of stranded green turtles were analysed for levels of 17 trace elements and methylmercury (MeHg) (n = 86 for scute and n = 14 for liver) and polybrominated diphenyl ethers (PBDEs) (n = 11 for muscle and n = 13 for liver)...
December 12, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29245144/the-myorobot-a-novel-automated-biomechatronics-system-to-assess-voltage-ca2-biosensors-and-active-passive-biomechanics-in-muscle-and-biomaterials
#4
M Haug, B Reischl, G Prölß, C Pollmann, T Buckert, C Keidel, S Schürmann, M Hock, S Rupitsch, M Heckel, T Pöschel, T Scheibel, C Haynl, L Kiriaev, S I Head, O Friedrich
We engineered an automated biomechatronics system, MyoRobot, for robust objective and versatile assessment of muscle or polymer materials (bio-)mechanics. It covers multiple levels of muscle biosensor assessment, e.g. membrane voltage or contractile apparatus Ca2+ ion responses (force resolution 1µN, 0-10mN for the given sensor; [Ca2+] range ~ 100nM-25µM). It replaces previously tedious manual protocols to obtain exhaustive information on active/passive biomechanical properties across various morphological tissue levels...
December 7, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29245139/scapular-focused-exercise-treatment-protocol-for-shoulder-impingement-symptoms-three-dimensional-scapular-kinematics-analysis
#5
Gisele Harumi Hotta, Adriane Lopes Santos, Kevin James McQuade, Anamaria Siriani de Oliveira
BACKGROUND: The present study aimed to describe the effects of a periscapular strengthening and neuromuscular training protocol in three-dimensional scapular kinematics and resting positioning in participants with shoulder impingement symptoms. Self-reported function was also evaluated. METHOD: The study group comprised 50 subjects with shoulder impingement syndrome (control group, n=25; treatment group, n=25). The treatment group underwent 8weeks of neuromuscular training and periscapular strengthening...
December 11, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/29245114/subacromial-impingement-syndrome-an-electromyographic-study-of-shoulder-girdle-muscle-fatigue
#6
Omid Alizadehkhaiyat, Margaret M Roebuck, Ahmed T Makki, Simon P Frostick
Muscle fatigue affecting glenohumeral and/or scapular muscles is suggested as one of the contributing factors to the development of subacromial impingement syndrome (SAIS). Nonetheless, the fatigability of shoulder girdle muscles in association with the pathomechanics of SAIS has not been reported. This study aimed to measure and compare fatigue progression within the shoulder girdle musculature of patients and healthy controls. 75 participants including 39 patients (20 females; 19 males) and 36 healthy controls (15 females; 21 males) participated in the study...
December 7, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/29245113/the-temporal-relationship-between-activity-of-the-pelvic-floor-muscles-and-motion-of-selected-urogenital-landmarks-in-healthy-nulliparous-women
#7
Stéphanie Thibault-Gagnon, Cindy Auchincloss, Ryan Graham, Linda McLean
AIMS: The purpose of this study was to investigate the relationship between pelvic floor muscle (PFM) electromyographic (EMG) activation and urogenital landmark motion measured using 2D transperineal ultrasound (US) imaging. METHODS: Eight healthy, nulliparous women performed maximum voluntary PFM contractions while EMG and transperineal US images were acquired simultaneously. Changes in the levator plate length (LPL), bladder neck (BN) position and urethral position were determined by visual inspection...
December 6, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/29245099/total-bilateral-tmj-reconstruction-for-pain-and-dysfunction-case-report
#8
Carlos Vinícius Ayres Moreira, André Victor Pinto Serra, Larissa Oliveira Ramos Silva, Ana Carolina Fraga Fernandes, Roberto Almeida de Azevedo
INTRODUCTION: Temporomandibular disorders encompass a set of clinical conditions that affect the temporomandibular joint, the masticatory muscles and the associated tissues. Many therapeutic alternatives can be considered, being divided into non-invasive, minimally invasive and invasive interventions. This work aims to report a case of inflammatory joint pain and dysfunction treated with bilateral TMJ full reconstruction with alloplastic prosthesis stock. CASE REPORT: Patient D...
December 8, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29245068/overexpression-of-microrna-375-impedes-platelet-derived-growth-factor-induced-proliferation-and-migration-of-human-fetal-airway-smooth-muscle-cells-by-targeting-janus-kinase-2
#9
Yamei Ji, Xin Yang, Huixia Su
The abnormal proliferation and migration of airway smooth muscle (ASM) cells play a critical role in airway remodeling during the development of asthma. MicroRNAs (miRNAs) have emerged as critical regulators of ASM cell proliferation and migration in airway remodeling. In this study, we aimed to investigate the potential role of miR-375 in the regulation of platelet-derived growth factor (PDGF)-induced fetal ASM cell proliferation and migration. Our results showed that miR-375 expression was significantly decreased in fetal ASM cells that were treated with PDGF...
December 12, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29245050/nanog-restores-the-impaired-myogenic-differentiation-potential-of-skeletal-myoblasts-after-multiple-population-doublings
#10
Aref Shahini, Debanik Choudhury, Mohammadnabi Asmani, Ruogang Zhao, Pedro Lei, Stelios T Andreadis
Adult skeletal muscle regeneration relies on the activity of satellite cells residing in the skeletal muscle niche. However, systemic and intrinsic factors decrease the myogenic differentiation potential of satellite cells thereby impairing muscle regeneration. Here we present data showing that late passage C2C12 myoblasts exhibited significantly impaired myogenic differentiation potential that was accompanied by impaired expression of myogenic regulatory factors (Myf5, MyoD, Myogenin, and MRF4) and members of myocyte enhancer factor 2 family...
December 2, 2017: Stem Cell Research
https://www.readbyqxmd.com/read/29245016/preferential-myofibroblast-differentiation-of-cardiac-mesenchymal-progenitor-cells-in-the-presence-of-atrial-fibrillation
#11
Elisa Gambini, Gianluca Lorenzo Perrucci, Beatrice Bassetti, Gabriella Spaltro, Giulia Campostrini, Maria Chiara Lionetti, Alberto Pilozzi, Federico Martinelli, Andrea Faruggia, Dario DiFrancesco, Andrea Barbuti, Giulio Pompilio
Atrial fibrillation (AF) is characterized by electrical, contractile, and structural remodeling mediated by interstitial fibrosis. It has been shown that human cardiac mesenchymal progenitor cells (CMPCs) can be differentiated into endothelial, smooth muscle, and fibroblast cells. Here, we have investigated, for the first time, the contribution of CMPCs in the fibrotic process occurring in AF. As expected, right auricolae samples displayed significantly higher fibrosis in AF vs control (CTR) patients. In tissue samples of AF patients only, double staining for c-kit and the myofibroblast marker α-smooth muscle actin (α-SMA) was detected...
November 27, 2017: Translational Research: the Journal of Laboratory and Clinical Medicine
https://www.readbyqxmd.com/read/29244891/the-effects-of-experimental-temporalis-muscle-pain-on-jaw-muscle-electromyographic-activity-during-jaw-movements-and-relationships-with-some-psychological-variables
#12
Tantry Maulina, Magda Amhamed, Terry Whittle, John Gal, Rahena Akhter, Greg M Murray
AIMS: To determine if the effects of experimental temporalis muscle pain on jaw muscle activity vary with the jaw task performed, jaw displacement magnitude, participant being studied, and with psychological measures. METHODS: Jaw movement was tracked, and electromyographic (EMG) activity was recorded from the masseter and anterior temporalis and digastric muscles in 14 asymptomatic participants during standardized opening/closing jaw movement, free chewing, and standardized chewing tasks...
December 15, 2017: Journal of Oral & Facial Pain and Headache
https://www.readbyqxmd.com/read/29244871/inflammatory-monocytes-mediate-control-of-acute-alphavirus-infection-in-mice
#13
Kelsey C Haist, Kristina S Burrack, Bennett J Davenport, Thomas E Morrison
Chikungunya virus (CHIKV) and Ross River virus (RRV) are mosquito-transmitted alphaviruses that cause debilitating acute and chronic musculoskeletal disease. Monocytes are implicated in the pathogenesis of these infections; however, their specific roles are not well defined. To investigate the role of inflammatory Ly6ChiCCR2+ monocytes in alphavirus pathogenesis, we used CCR2-DTR transgenic mice, enabling depletion of these cells by administration of diptheria toxin (DT). DT-treated CCR2-DTR mice displayed more severe disease following CHIKV and RRV infection and had fewer Ly6Chi monocytes and NK cells in circulation and muscle tissue compared with DT-treated WT mice...
December 15, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/29244860/lithium-reduces-blood-glucose-levels-but-aggravates-albuminuria-in-btbr-ob-ob-mice
#14
Theun de Groot, Lars Damen, Leanne Kosse, Mohammad Alsady, Rosalinda Doty, Ruben Baumgarten, Susan Sheehan, Johan van der Vlag, Ron Korstanje, Peter M T Deen
Glycogen synthase kinase 3 (GSK3) plays an important role in the development of diabetes mellitus and renal injury. GSK3 inhibition increases glucose uptake in insulin-insensitive muscle and adipose tissue, while it reduces albuminuria and glomerulosclerosis in acute kidney injury. The effect of chronic GSK3 inhibition in diabetic nephropathy is not known. We tested the effect of lithium, the only clinical GSK3 inhibitor, on the development of diabetes mellitus and kidney injury in a mouse model of diabetic nephropathy...
2017: PloS One
https://www.readbyqxmd.com/read/29244845/diet-and-stable-isotope-analyses-reveal-the-feeding-ecology-of-the-orangeback-squid-sthenoteuthis-pteropus-steenstrup-1855-mollusca-ommastrephidae-in-the-eastern-tropical-atlantic
#15
Véronique Merten, Bernd Christiansen, Jamileh Javidpour, Uwe Piatkowski, Oscar Puebla, Rebeca Gasca, Henk-Jan T Hoving
In the eastern tropical Atlantic, the orangeback flying squid Sthenoteuthis pteropus (Steenstrup 1855) (Cephalopoda, Ommastrephidae) is a dominant species of the epipelagic nekton community. This carnivore squid has a short lifespan and is one of the fastest-growing squids. In this study, we characterise the role of S. pteropus in the pelagic food web of the eastern tropical Atlantic by investigating its diet and the dynamics of its feeding habits throughout its ontogeny and migration. During three expeditions in the eastern tropical Atlantic in 2015, 129 specimens were caught by hand jigging...
2017: PloS One
https://www.readbyqxmd.com/read/29244843/pathology-in-repeated-transurethral-resection-of-a-bladder-tumor-as-a-risk-factor-for-prognosis-of-high-risk-non-muscle-invasive-bladder-cancer
#16
Bum Sik Tae, Chang Wook Jeong, Cheol Kwak, Hyeon Hoe Kim, Kyung Chul Moon, Ja Hyeon Ku
The prognostic value of repeat transurethral resection of bladder tumor (TURBT) in patients with diagnosed high-risk, non-muscle-invasive bladder cancer (NMIBC) was investigated. We retrospectively reviewed the medical records of patients treated from October 2004 to December 2013 at Seoul National University who underwent repeated TURBT within 2-6 weeks after an initial resection. The study enrolled patients who had been diagnosed with NMIBC at both the initial and repeat TURBT; patients with muscle-invasive tumors on repeat TURBT were excluded...
2017: PloS One
https://www.readbyqxmd.com/read/29244838/muscle-function-in-glenohumeral-joint-stability-during-lifting-task
#17
Yoann Blache, Mickaël Begon, Benjamin Michaud, Landry Desmoulins, Paul Allard, Fabien Dal Maso
Ensuring glenohumeral stability during repetitive lifting tasks is a key factor to reduce the risk of shoulder injuries. Nevertheless, the literature reveals some lack concerning the assessment of the muscles that ensure glenohumeral stability during specific lifting tasks. Therefore, the purpose of this study was to assess the stabilization function of shoulder muscles during a lifting task. Kinematics and muscle electromyograms (n = 9) were recorded from 13 healthy adults during a bi-manual lifting task performed from the hip to the shoulder level...
2017: PloS One
https://www.readbyqxmd.com/read/29244692/reconstruction-of-extended-bone-defects-using-massive-allografts-combined-with-surgical-angiogenesis-a-case-report
#18
Victoria Struckmann, Gerhard Schmidmaier, Thomas Ferbert, Ulrich Kneser, Thomas Kremer
CASE: A 20-year-old patient presented with an extended composite knee defect with destruction of the medial femoral condyle, including the medial collateral ligament. Treatment included using an anterolateral thigh flap for soft-tissue reconstruction, tensor fasciae latae muscle for ligament repair, and a massive allogenic bone graft of the medial femoral condyle that was revascularized with an osteocutaneous composite free flap from the contralateral femur. At 17 months postoperatively, the outcome was evaluated with scores on several established scales and radiographic assessment...
January 2017: JBJS Case Connector
https://www.readbyqxmd.com/read/29244663/scapular-winging-caused-by-combined-palsy-of-the-spinal-accessory-nerve-and-the-long-thoracic-nerve-a-case-report
#19
Kentaro Ago, Noboru Matsumura, Takuji Iwamoto, Kazuki Sato, Masaya Nakamura, Morio Matsumoto
CASE: A 37-year-old man with scapular winging, caused by combined palsy of the spinal accessory nerve and the long thoracic nerve, was successfully treated with a pectoralis major transfer to substitute for the serratus anterior muscle, and with levator scapulae and rhomboid muscle transfers to substitute for the trapezius muscle. CONCLUSION: The serratus anterior paralysis was thought to have occurred secondary to traction of the long thoracic nerve by the unsupported scapula following the spinal accessory nerve palsy...
April 2017: JBJS Case Connector
https://www.readbyqxmd.com/read/29244658/a-distally-based-sartorius-muscle-flap-for-a-gustilo-grade-iii-open-fracture-of-the-lateral-femoral-condyle-and-the-head-of-the-fibula-with-a-complex-soft-tissue-defect-a-case-report-and-review-of-the-literature
#20
Victoire Bouveau, Damien Potage, Arnaud Dubory, Romain Chevallier, Jean-Paul Meningaud, Jérémy Niddam, Charles-Henri Flouzat-Lachaniette
CASE: We present a case of lower-limb trauma associated with an extensive soft-tissue defect around the knee joint, which led to the exposure of bone and the metalwork that was used for the management of the associated fractures. Coverage was performed with a distally based sartorius muscle flap in a single-stage procedure, allowing good recovery with a nice aesthetic and functional outcome at the 1-year follow-up. Additionally, we discuss alternative options for the coverage of severe soft-tissue defects based on the clinical context...
December 13, 2017: JBJS Case Connector
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