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https://www.readbyqxmd.com/read/28323694/assessment-of-paraspinal-muscle-cross-sectional-area-after-lumbar-decompression-minimally-invasive-versus-open-approaches
#1
Lacey E Bresnahan, Justin S Smith, Alfred T Ogden, Steven Quinn, George R Cybulski, Narina Simonian, Raghu N Natarajan, Richard D Fessler, Richard G Fessler
STUDY DESIGN: A retrospective, blinded analysis of imaging studies. SUMMARY OF BACKGROUND DATA: To evaluate changes in paraspinal muscle cross-sectional area (CSA) after surgical treatment for lumbar stenosis and to compare these changes between minimally invasive and standard open approaches. The open approach to lumbar stenosis is effective, but it involves retraction and resection of muscle from the spinous process, which can result in ischemia and denervation of paraspinal musculature and may lead to muscle atrophy and pain...
April 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28320889/trunk-muscle-activation-during-movement-with-a-new-exercise-device-for-lumbo-pelvic-reconditioning
#2
Tobias Weber, Dorothée Debuse, Sauro E Salomoni, Edith L Elgueta Cancino, Enrico De Martino, Nick Caplan, Volker Damann, Jonathan Scott, Paul W Hodges
Gravitational unloading leads to adaptations of the human body, including the spine and its adjacent structures, making it more vulnerable to injury and pain. The Functional Re-adaptive Exercise Device (FRED) has been developed to activate the deep spinal muscles, lumbar multifidus (LM) and transversus abdominis (TrA), that provide inter-segmental control and spinal protection. The FRED provides an unstable base of support and combines weight bearing in up-right posture with side alternating, elliptical leg movements, without any resistance to movement...
March 2017: Physiological Reports
https://www.readbyqxmd.com/read/28319133/effects-of-sudden-walking-perturbations-on-neuromuscular-reflex-activity-and-three-dimensional-motion-of-the-trunk-in-healthy-controls-and-back-pain-symptomatic-subjects
#3
Juliane Mueller, Tilman Engel, Steffen Mueller, Josefine Stoll, Heiner Baur, Frank Mayer
BACKGROUND: Back pain patients (BPP) show delayed muscle onset, increased co-contractions, and variability as response to quasi-static sudden trunk loading in comparison to healthy controls (H). However, it is unclear whether these results can validly be transferred to suddenly applied walking perturbations, an automated but more functional and complex movement pattern. There is an evident need to develop research-based strategies for the rehabilitation of back pain. Therefore, the investigation of differences in trunk stability between H and BPP in functional movements is of primary interest in order to define suitable intervention regimes...
2017: PloS One
https://www.readbyqxmd.com/read/28293469/motor-unit-potentials-of-the-erector-spinae-muscle-by-concentric-needle-electromyography
#4
Andreas Posa, Izabela Niśkiewicz, Alexander Emmer, Yorck Kluge, Malte E Kornhuber
INTRODUCTION: The needle electromyography (EMG) serves to supply additional information in patients with suspected neuromuscular disorders. We aimed to provide motor unit potential (MUP) data by concentric needle EMG in the erector spinae (ES) in comparison with biceps brachii (BB) and lateral vastus (LV). METHODS: Electromyography MUP data (n) were obtained in ES (517), BB (539), and LV (627) in 32 healthy volunteers (16f). RESULTS: Motor unit potential data: amplitude (μV) 393 ± 174 (ES), 375 ± 162 (BB), and 577 ± 304 (LV); duration (ms) 10...
March 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28290751/comparison-of-thoracic-and-lumbar-erector-spinae-muscle-activation-before-and-after-a-golf-practice-session
#5
Graeme G Sorbie, Fergal M Grace, Yaodong Gu, Julien S Baker, Ukadike C Ugbolue
Lower back pain is commonly associated with golfers. The study aimed: to determine whether thoracic- and lumbar-erector-spinae muscle display signs of muscular fatigue after completing a golf practice session, and to examine the effect of the completed practice session on club head speed, ball speed and absolute carry distance performance variables. Fourteen right-handed male golfers participated in the laboratory-based-study. Surface electromyography (EMG) data was collected from the lead and trail sides of the thoracic- and lumbar-erector-spinae muscle...
March 14, 2017: Journal of Applied Biomechanics
https://www.readbyqxmd.com/read/28288716/molecular-pathogenesis-of-splenic-and-nodal-marginal-zone-lymphoma
#6
REVIEW
Valeria Spina, Davide Rossi
Genomic studies have improved our understanding of the biological basis of splenic (SMZL) and nodal (NMZL) marginal zone lymphoma by providing a comprehensive and unbiased view of the genes/pathways that are deregulated in these diseases. Consistent with the physiological involvement of NOTCH, NF-κB, B-cell receptor and toll-like receptor signaling in mature B-cells differentiation into the marginal zone B-cells, many oncogenic mutations of genes involved in these pathways have been identified in SMZL and NMZL...
March 2017: Best Practice & Research. Clinical Haematology
https://www.readbyqxmd.com/read/28287901/the-acute-effects-of-bodyweight-suspension-exercise-on-muscle-activation-and-muscular-fatigue
#7
Trent E Cayot, Jakob D Lauver, Barry W Scheuermann
This investigation examined effects of two exercise modes (barbell, BB; bodyweight suspension, BWS) on muscle activation, resistance load, and fatigue. During session one, nine resistance-trained males completed an elbow flexion one-repetition maximum (1RM). During sessions two and three, subjects completed standing biceps curls to fatigue at 70% 1RM utilizing a randomized exercise mode. Surface electromyography (sEMG) recorded muscle activation of the biceps brachii, triceps brachii, anterior deltoid, posterior deltoid, rectus abdominis, and erector spinae...
March 13, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28284565/isolation-and-structure-elucidation-of-cyclopeptide-alkaloids-from-ziziphus-nummularia-and-ziziphus-spina-christi-by-hplc-dad-ms-and-hplc-pda-hrms-spe-nmr
#8
Emmy Tuenter, Kenn Foubert, Dan Staerk, Sandra Apers, Luc Pieters
Seven cyclopeptide alkaloids were isolated from the stem bark of Ziziphus nummularia and Ziziphus spina-christi. Three previously undescribed compounds were identified: nummularine-U, spinanine-B and spinanine-C, together with the known compounds mauritine-F, nummularine-D, nummularine-E and amphibine-D. For their purification either semi-preparative HPLC with DAD and ESIMS detection or HPLC-PDA-(HRMS)-SPE-NMR was applied, together with conventional separation methods. Their structures were elucidated by spectroscopic means...
March 8, 2017: Phytochemistry
https://www.readbyqxmd.com/read/28284118/agricultural-pesticides-and-veterinary-substances-in-uruguayan-beeswax
#9
Jorge Harriet, Juan Pablo Campá, Mauricio Grajales, Christophe Lhéritier, Antonio Gómez Pajuelo, Yamandú Mendoza-Spina, Leonidas Carrasco-Letelier
Over the last decade, Uruguay has expanded and intensified its rainfed crop production. This process has affected beekeeping in several ways: for example, by reducing the space available. This has increased the density of apiaries, the risk of varroosis and acaricide use. Additionally, the dominance of no-tillage crops has increased the frequencies of application and of loads of pesticides in regions where such crops share the land with beekeeping and honey production. Therefore, the exposure of bees to xenobiotics (agricultural pesticides and veterinary products) has increased in line with pollution of hives and their products...
February 28, 2017: Chemosphere
https://www.readbyqxmd.com/read/28282135/silver-nanoparticles-and-metallic-silver-interfere-with-the-griess-reaction-reduction-of-the-azo-dye-formation-via-a-competing-sandmeyer-like-reaction
#10
Angela Kaempfer, Rita La Spina, Douglas Gilliland, Sandro Valzacchi, David Asturiol, Vicki Stone, Agnieszka Kinsner-Ovaskainen
Silver (Ag) is the most common nanomaterial (NM) in consumer products. Much research has been focused on elucidating the potential impact of Ag-containing NMs on human health, e.g. cytotoxicity, genotoxicity or pro-inflammatory responses. In the case of pro-inflammatory response a frequently used endpoint is the induction of nitric oxide (NO), which is indirectly quantified as nitrite (NO2-) with the Griess reaction. After preliminary studies in a macrophage-like cell culture system showed anomalous false negative results in presence of silver nanoparticles (Ag NPs), we studied the influence of Ag on the detection of NO2- in a cell-free environment...
March 10, 2017: Chemical Research in Toxicology
https://www.readbyqxmd.com/read/28276672/current-adoption-of-lung-ultrasound-in-intensive-care-units-an-italian-multi-centre-survey
#11
Italo Calamai, Massimiliano Greco, Guido Bertolini, Rosario Spina
BACKGROUND: Lung ultrasound (LUS) is a useful tool for assessing lung status in critically ill patients, but is not widely applied in intensive care units (ICUs). The aim of this study was to investigate the use of LUS in Italian ICUs. METHODS: A questionnaire was distributed to 116 ICU representatives belonging to the Italian GiViTI network, participating in a national project on continuous quality of care assessment. The answers to the questionnaire were analysed with the data collected in the course of said project...
March 7, 2017: Minerva Anestesiologica
https://www.readbyqxmd.com/read/28274571/dammarane-type-saponins-from-leaves-of-ziziphus-spina-christi
#12
Alen Bozicevic, Maria De Mieri, Angela Di Benedetto, Matthias Hamburger
Phytochemical profiling of Ziziphus spina-christi leaves led to the characterization of 10 dammarane-type saponins and 12 phenolic compounds. Isolation was achieved by gel chromatography on Sephadex LH20, open column chromatography on silica gel, and semi-preparative HPLC with PDA and ELSD detectors. Structural characterization was performed by extensive 1D and 2D NMR, mass spectrometry, and by GC-MS of sugar derivatives. A biosynthetic pathway leading to three previously undescribed sapogenins is proposed...
March 5, 2017: Phytochemistry
https://www.readbyqxmd.com/read/28272292/the-erector-spinae-plane-block-provides-visceral-abdominal-analgesia-in-bariatric-surgery-a-report-of-3-cases
#13
Ki Jinn Chin, Laith Malhas, Anahi Perlas
Postoperative pain after bariatric surgery can be significant and yet difficult to manage. These patients frequently have associated obstructive sleep apnea and are at risk of respiratory depression with opioid analgesia. Abdominal wall blocks such as the subcostal transversus abdominis plane block are not of significant benefit, probably in part because they provide only somatic analgesia. The ultrasound-guided erector spinae plane (ESP) block is a recently described regional anesthetic technique for providing thoracic analgesia when performed at the level of the T5 transverse process...
March 8, 2017: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/28272282/diagnostic-and-therapeutic-challenges
#14
Carlo La Spina, Giulio M Modorati, Francesco Bandello, Giuseppe Querques, Philipp Roberts, Amani A Fawzi
No abstract text is available yet for this article.
March 7, 2017: Retina
https://www.readbyqxmd.com/read/28272251/tensiomyography-sonoelastography-and-mechanosensitivity-differences-between-active-latent-and-control-low-back-myofascial-trigger-points-a-cross-sectional-study
#15
César Calvo-Lobo, Ignacio Diez-Vega, Beatriz Martínez-Pascual, Silvia Fernández-Martínez, Mónica de la Cueva-Reguera, Gerson Garrosa-Martín, David Rodríguez-Sanz
The myofascial pain syndrome (MPS) is considered the most common musculoskeletal condition. The lumbopelvic pain (LPP) is established as one of the most prevalent musculoskeletal disorders. Nevertheless, previous research has not yet studied the contractibility changes by tensiomyography between myofascial trigger point (MTrP) types and normal tissue. Therefore, the aim of this study was to determine the tensiomyography, sonoelastography, and pressure pain threshold (PPT) differences between the palpation area of active and latent MTrPs with regards to control points in the lumbar erector spinae muscles of subjects with LPP...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28269810/comparison-of-trunk-electromyographic-muscle-activity-depends-on-sitting-postures
#16
DongGeon Lee, SeoJeong Yu, SunHae Song, Se-Han Lee, SeungHeon An, Hwi-Young Cho, Ki-Hun Cho, GyuChang Lee
BACKGROUND: Different postural positions can be characterized by the activation and relative contributions of different postural muscles, and may variously contribute to the recovery from or worsening of chronic lower back pain. OBJECTIVE: The present study aimed to investigates trunk muscle activities in four types of seated postures: cross-legged, long, side, and W-shaped. METHODS: Eight healthy adults participated in the study. Trunk muscle activities of the external oblique (EO), rectus abdominis (RA), latissimus dorsi (LD), and erector spinae (ES) muscles in each of the sitting postures including cross-legged, long, side, and W-shaped were collected utilizing surface electromyography (sEMG)...
February 27, 2017: Work: a Journal of Prevention, Assessment, and Rehabilitation
https://www.readbyqxmd.com/read/28260511/clinically-relevant-drug-interactions-with-anti-alzheimer-s-drugs
#17
Filippo Caraci, Janet Sultana, Filippo Drago, Edoardo Spina
The aging world population had led to an increase in the prevalence of Alzheimer's disease (AD). The drugs used to slow down the onset of AD, galantamine, donepezil, rivastigmine and memantine, are generally well-tolerated. However, drug interactions between these drugs and other drugs are an important aspect of patient safety that should be borne in mind, particularly given the high burden of polypharmacy in the elderly. The aim of this review is to provide an updated review of clinically significant drug-drug interactions concerning drugs approved for AD...
March 3, 2017: CNS & Neurological Disorders Drug Targets
https://www.readbyqxmd.com/read/28259858/posterior-fossa-decompression-in-chiari-i-improves-denervation-of-the-paraspinal-muscles
#18
Shifu Sha, Yang Li, Yong Qiu, Zhen Liu, Xu Sun, Weiguo Zhu, Zhenhua Feng, Tao Wu, Jian Jiang, Zezhang Zhu
OBJECTIVE: To investigate whether posterior fossa decompression (PFD) could improve denervation of the paraspinal muscles in patients with Chiari I malformation (CMI). BACKGROUND: Paraspinal muscle denervation is one of the essential elements in the pathophysiology of CMI/syringomyelia-related scoliosis. Although PFD has been widely used for managing CMI, whether denervation of the paraspinal muscles may benefit from this neurosurgical procedure remains ambiguous...
March 4, 2017: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/28254379/new-natural-amino-acid-bearing-prodrugs-boost-pterostilbene-s-oral-pharmacokinetic-and-distribution-profile
#19
Michele Azzolini, Andrea Mattarei, Martina La Spina, Michele Fanin, Giacomo Chiodarelli, Matteo Romio, Mario Zoratti, Cristina Paradisi, Lucia Biasutto
The biomedical effects of the natural phenol pterostilbene are of great interest but its bioavailability is negatively affected by the phenolic group in position 4' which is an ideal target for the conjugative enzymes of phase II metabolism. We report the synthesis and characterization of prodrugs in which the hydroxyl moiety is reversibly protected as a carbamate ester linked to the N-terminus of a natural amino acid. Prodrugs comprising amino acids with hydrophobic side chains were readily absorbed after intragastric administration to rats...
February 27, 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/28253044/wearing-an-inflatable-vest-alters-muscle-activation-and-trunk-angle-while-paddling-a-surfboard
#20
Jeff A Nessler, Thomas Hastings, Kevin Greer, Sean C Newcomer
Low back pain is a commonly reported problem among recreational surfers. Some individuals report that wearing a vest with an inflatable bladder that alters trunk angle may help to alleviate pain. The purpose of this study was to determine whether such a vest has an effect on muscle activation and extension of the lower back. Twelve recreational surfers completed 12 paddling trials at 1.1 m/s in a swim flume on both a shortboard and a longboard on two separate days. Three conditions of no vest, vest uninflated, and vest inflated were presented to participants in random order...
March 2, 2017: Journal of Applied Biomechanics
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