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October 2016: Klinische Monatsblätter Für Augenheilkunde
Francesca Megiorni, Simona Camero, Simona Ceccarelli, Heather P McDowell, Olga Mannarino, Francesco Marampon, Barry Pizer, Rajeev Shukla, Antonio Pizzuti, Cinzia Marchese, Anna Clerico, Carlo Dominici
Aberrant DNA methylation has been frequently observed in many human cancers, including rhabdomyosarcoma (RMS), the most common soft tissue sarcoma in children. To date, the expression and function of the de novo DNA methyltransferase (DNMT) 3B in RMS have not yet been investigated. Our study show for the first time a significant up-regulation of DNMT3B levels in 14 RMS tumour samples and 4 RMS cell lines in comparison to normal skeletal muscle. Transfection of RD and TE671 cells, two in vitro models of embryonal RMS (ERMS), with a synthetic DNMT3B siRNA decreased cell proliferation by arresting cell cycle at G1 phase, as demonstrated by the reduced expression of Cyclin B1, Cyclin D1 and Cyclin E2, and by the concomitant up-regulation of the checkpoint regulators p21 and p27...
October 15, 2016: Oncotarget
Jeffrey J Widrick, Matthew Alexander, Benjamin Sanchez, Devin Gibbs, Genri Kawahara, Alan Beggs, Louis Kunkel
Sapje zebrafish lack the protein dystrophin and are the smallest vertebrate model of Duchenne muscular dystrophy (DMD). Their small size makes them ideal for large-scale drug discovery screens. However, the extent that sapje mimic the muscle dysfunction of higher vertebrate models of DMD is unclear. We used an optical birefringence assay to differentiate affected dystrophic sapje larvae from their unaffected siblings and then studied trunk muscle contractility at 4-7 days post fertilization. Preparation cross-sectional area (CSA) was similar for affected and unaffected larvae, yet tetanic forces of affected preparations were only 30-60% of normal...
October 7, 2016: Physiological Genomics
Tsuyoshi Goto, Toshinori Sakai, Tetsuya Enishi, Nori Sato, Koji Komatsu, Koichi Sairyo, Shinsuke Katoh
Neurogenic intermittent claudication is a main symptom in lumbar spinal stenosis (LSS), and postural change is often observed during walking. This study aimed to identify the changes in posture and muscle activity in the trunk and legs during walking in patients with LSS by examining 6 patients who had undergone decompression surgery. None of them had significant paralysis. Gait analysis using Vicon motion capture system(®) with electromyographic recordings of the paravertebral muscles (PVM) and vastus lateralis muscle (VL) was performed preoperatively and 2 weeks postoperatively...
October 6, 2016: Gait & Posture
Elisa A Marques, Pedro Figueiredo, Tamara B Harris, Flávia A Wanderley, Joana Carvalho
This study aimed to compare the magnitude of knee muscle strength and static and dynamic balance change in response to 8 months of progressive RE and AE training in healthy community-dwelling older women. A secondary aim was to assess the relationship between muscle strength and balance changes (up and go test (UGT), one-leg stance test, and center of pressure measures). This study was a secondary analysis of longitudinal data from a randomized controlled trial, a three-arm intervention study in older women (n=71, mean age 69...
October 11, 2016: Archives of Gerontology and Geriatrics
Yongbin Lu, Zhiyuan Cheng, Yaxue Zhao, Xiaoyu Chang, Cynthia Chan, Yana Bai, Ning Cheng
BACKGROUND AND AIMS: Our study aims to evaluate the efficacy and safety of long-term treatment of statins for coronary heart disease (CHD). METHODS: Efficacy outcomes included changes in blood lipids, risk of CHD mortality and all-cause mortality. Safety outcomes were evaluated by the risk of adverse events (AE). Bayesian network meta-analysis was used to compare the direct and indirect effects between different statins. RESULTS: The systematic review showed that levels of blood lipids decreased during statin treatment...
October 14, 2016: Atherosclerosis
Ikram Bezrati, Raouf Hammami, Mohamed Kacem Ben Fradj, Domenico Martone, Johnny Padulo, Moncef Feki, Anis Chaouachi, Naziha Kaabachi
Vitamin D is thought to regulate skeletal muscle function and boost physical performance. The aim of this study was to assess the relationship between vitamin D and physical performance in physically active children. This cross-sectional study included 125 children who practice football as a leisure activity. Plasma 25-hydroxyvitamin D (25-OHD) was assessed using a chemiluminescence immunoassay method. Vitamin D inadequacy was defined as 25-OHD < 20 ng/mL. Physical performance testing included measurements of muscle strength (maximal isometric contraction), jumping ability (vertical jump, standing broad jump, triple hop test), linear sprint (10 m and 20 m), and agility (9 × 4-m shuttle run)...
July 13, 2016: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
Hye Seon Kang, Chin Kook Rhee, Hea Yon Lee, Hyoung Kyu Yoon, Soon Seok Kwon, Sook Young Lee
Background/Aims: Inhaled corticosteroids are the most effective treatment currently available for asthma, but their beneficial effect against airway remodeling is limited. The tyrosine kinase inhibitor nilotinib has inhibitory activity against c-kit and the platelet-derived growth factor receptor. We compared the effects of fluticasone and nilotinib on airway remodeling in a chronic asthma model. We also examined whether co-treatment with nilotinib and fluticasone had any synergistic effect in preventing airway remodeling...
October 20, 2016: Korean Journal of Internal Medicine
C Dolfus, J-P Simon, G Landemore, F Leroy, F Chapon
INTRODUCTION: The clinical and histological presentations of the adult form of Pompe disease may be atypical. In such cases, identifying histological signs that point to the diagnosis would be crucial to avoid a delay in care. The aim of our study was to investigate the presence of rimmed vacuoles and acid phosphatase positivity in muscle biopsies of patients with late-onset Pompe disease. MATERIAL AND METHODS: We retrospectively studied muscle biopsies of all cases of the adult form of Pompe disease diagnosed at the University Hospital of Caen...
2016: Folia Neuropathologica
Ryo Kamata, Batmunkh Bumdelger, Hiroki Kokubo, Masayuki Fujii, Koichi Yoshimura, Takafumi Ishida, Mari Ishida, Masao Yoshizumi
Abdominal aortic aneurysms (AAAs), which commonly occur among elderly individuals, are accompanied by a risk of rupture with a high mortality rate. Although eicosapentaenoic acid (EPA) has been reported to prevent AAA formation, the mechanism by which EPA works on vascular smooth muscle cells is unknown. This study aimed to investigate the mechanism by which orally-administered EPA prevents the formation of severe AAAs that develop in Osteoprotegerin (Opg) knockout (KO) mice. In the CaCl2-induced AAA model, EPA attenuated the enhanced progression of AAAs in Opg-KO mice, including the increase in aortic diameter with destruction of elastic fibers in the media...
2016: PloS One
Viktoria Hasselhof, Anastasia Sperling, Kerstin Buttler, Philipp Ströbel, Jürgen Becker, Thiha Aung, Gunther Felmerer, Jörg Wilting
Millions of patients suffer from lymphedema worldwide. Supporting the contractility of lymphatic collectors is an attractive target for pharmacological therapy of lymphedema. However, lymphatics have mostly been studied in animals, while the cellular and molecular characteristics of human lymphatic collectors are largely unknown. We studied epifascial lymphatic collectors of the thigh, which were isolated for autologous transplantations. Our immunohistological studies identify additional markers for LECs (vimentin, CCBE1)...
2016: PloS One
Eric C Honert, Karl E Zelik
INTRODUCTION: Inverse dynamics joint kinetics are often used to infer contributions from underlying groups of muscle-tendon units (MTUs). However, such interpretations are confounded by multiarticular (multi-joint) musculature, which can cause inverse dynamics to over- or under-estimate net MTU power. Misestimation of MTU power could lead to incorrect scientific conclusions, or to empirical estimates that misguide musculoskeletal simulations, assistive device designs, or clinical interventions...
2016: PloS One
Achraf Ammar, Mouna Turki, Hamdi Chtourou, Omar Hammouda, Khaled Trabelsi, Choumous Kallel, Osama Abdelkarim, Anita Hoekelmann, Mohamed Bouaziz, Fatma Ayadi, Tarak Driss, Nizar Souissi
PURPOSE: The aim of this study was to investigate the effect of natural Pomegranate juice supplementation on performance and acute and delayed responses of muscle soreness and biomarkers of muscle damage after a weightlifting training session. METHODS: Nine elite weightlifters (21±0.5 years) performed two Olympic-Weightlifting-sessions after either placebo (PLA) or natural pomegranate juice (POMj) supplementations. Heart rate, blood pressure and blood samples (hematological parameters, muscle damage and C-reactive protein (CRP)) were collected at rest, 3min and 48h after each session...
2016: PloS One
Lutfi Murat Deniz, Murat Görkem Ataman, Huseyin Borman, Hilal Erinanç
With all implanted materials, a certain sequence of biological events occurs following the implantation. This process is destructive to the implant and peri-implant tissues. The aforementioned sequence of biological events may be responsible for the complications. In this study, the natural biologic process following implantation was completed in an area other than the final implantation area. The aim was to keep the peri-implant tissues in the final implantation area away from the process. In the control group, the porous polyethylene discs were implanted to subcutaneous area on the frontal bone of the rats...
October 2016: Journal of Craniofacial Surgery
Kun Hwang
The aim of this paper was to review the origins and history of deltopectoral flaps and the pectoralis major myocutaneous flap.The first published paper on the deltopectoral flap was written by Aymard in 1917. He described raising a medially based fasciocutaneous flap from the shoulder skin, which was then tubed and used for staged nasal reconstruction. Conley introduced the laterally based deltopectoral flap, which was supplied by the lateral thoracic and thoracocranial branches. Bakamjian used a medially based deltopectoral flap for pharyngoesophageal reconstruction; this was an axial flap based medially on the intercostal perforating vessels of the internal mammary artery...
October 2016: Journal of Craniofacial Surgery
Paulo Esteves Pinto Faria, Abrahão Cavalcante Gomes de Souza Carvalho, Bárbara Masalskas, Letícia Chihara, Eduardo Sant'Ana, Osvaldo Magro Filho
One of the most impressive soft tissue injuries is the facial degloving, normally associated with industrial machines and traffic accidents. This injury is characterized by the separation of the skin and cartilage from the bones, compromising the soft tissues correlated in the trauma area, nerves, and blood vessels. A 28-year-old patient, male, was referred to Araçatuba's Santa Casa Hospital, after a motorcycle accident, hitting his face on the sidewalk. The patient was conscious, oriented, denying fainting and unconsciousness during the accident, and complaining of pain in the nasal region of the face...
October 2016: Journal of Craniofacial Surgery
Seok-Youl Choi, Jong Woong Park, Dong Hwee Kim
Ultrasonographic study is useful for decision making of treatment for focal neuropathy with unusual electrodiagnostic findings. We present a patient with severe acute radial neuropathy with sensory sparing around the distal arm secondary to twisting of the radial nerve following blunt trauma. A 24-year-old man with a 2-week history of left wrist drop and severe pain around the left elbow presented after hitting the left distal arm on the doorknob. The left wrist and finger extensions were grade 0, but elbow extension could not be tested because of severe pain during this action...
November 2016: American Journal of Physical Medicine & Rehabilitation
Seung-Hyun Yoon, Doo-Hyung Lee, Myung-Chul Jung, Young Uk Park, Seong-Yeon Lim
OBJECTIVE: The aim of this study was to evaluate the activity of rotator cuff (RC) muscles during activities of daily living. DESIGN: Motion analysis was conducted with 14 volunteers. Activation of RC (subscapularis, supraspinatus, and infraspinatus) was assessed using electromyography (EMG). Walking was performed with or without a shoulder immobilizer. Eating was conducted with or without the support of the elbow with the contralateral hand. Washing the hair was simulated while standing or leaning forward; washing the body was simulated while standing or holding the elbow; and washing the face was simulated using both hands while leaning forward...
November 2016: American Journal of Physical Medicine & Rehabilitation
Anand Pandey, Vipin Gupta, Shailendra P Singh, Vijendra Kumar, Rajesh Verma
A trophic ulcer is a pressure ulcer caused by external trauma to a part of the body that is compromised due to disease, vascular insufficiency, or loss of afferent nerve fibers. Spinal dysraphism (ie, neural tube defects [NTD]) such as meningomyelocele is a risk factor for developing these ulcers in adults and pediatric patients. Information regarding the occurrence of trophic ulcers in pediatric patients with NTD is lacking. A review of the English-language literature on skin/neuropathic ulcers in patients with NTDs, irrespective of study design, published between 1975 and 2014, was undertaken using the PubMed database...
December 2015: Ostomy/wound Management
Jian Cui, Cheryl A Blaha, Lawrence I Sinoway
The effects of whole-body heat stress on sympathetic and cardiovascular responses to stimulation of muscle metaboreceptors and mechanoreceptors remains unclear. We examined the muscle sympathetic nerve activity (MSNA), blood pressure and heart rate in 14 young healthy subjects during fatiguing isometric handgrip exercise, post exercise circulatory occlusion (PECO), and passive muscle stretch during PECO. The protocol was performed under normothermic and whole-body heat stress (increase internal temperature ~0...
October 7, 2016: Journal of Applied Physiology
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