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https://www.readbyqxmd.com/read/29345503/effectiveness-of-the-biophysical-barriers-to-the-peridural-fibrosis-in-rat-laminectomy-model
#1
Ibrahim Akkurt, Bulent Bakar, Gungor Cagdas Dincel, Fatma Azize Budak Yıldıran, Mustafa Ogden, Egemen Nursoy, Elif Sari
PURPOSE: Peridural fibrosis which could occur after the spinal surgery could adhere neural tissue closely and may cause to neural entrapment symptoms and require surgical reintervention. AIM OF THE STUDY: Present study was designed to reduce occurrence of peridural fibrosis in rat laminectomy model by using biophysical barriers called hyaluronic acid (HAS) dural barrier, activated polyethylene glycol and polyethylene imine (PEG) dural barrier, and platelet-rich plasma (PRP)...
January 18, 2018: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/29298564/diffusion-tensor-imaging-of-scarring-necrosis-and-cavitation-based-on-histopathological-findings-in-dogs-with-chronic-spinal-cord-injury-evaluation-of-multiple-diffusion-parameters-and-their-correlations-with-histopathological-findings
#2
Hakyoung Yoon, Won-Jin Moon, Sang-Soep Nahm, Jaehwan Kim, Kidong Eom
The use of diffusion tensor imaging (DTI) for the characterization of various lesion types in dogs with spinal cord injury (SCI) has not been investigated. The purpose of this study was to characterize scarring [loose immature scarring (LIMS), intermediate mature scarring (IMS), and dense mature scarring (DMS)], necrosis, cavitation, and acute hemorrhage using multiple DTI parameters and determine the correlations between the DTI parameters and histopathological finding in dogs with controlled SCI. All imaging data were obtained from the lumbar spinal cord (from L1 to L3) of normal and SCI dogs using a 3-Tesla magnetic resonance imaging scanner...
January 3, 2018: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29283191/the-clustering-and-morphology-of-chondrocytes-in-normal-and-mildly-degenerate-human-femoral-head-cartilage-studied-by-confocal-laser-scanning-microscopy
#3
Asima Karim, Anish K Amin, Andrew C Hall
Chondrocytes are the major cell type present in hyaline cartilage and they play a crucial role in maintaining the mechanical resilience of the tissue through a balance of the synthesis and breakdown of extracellular matrix macromolecules. Histological assessment of cartilage suggests that articular chondrocytes in situ typically occur singly and demonstrate a rounded/elliptical morphology. However, there are suggestions that their grouping and fine shape is more complex and that these change with cartilage degeneration as occurs in osteoarthritis...
December 28, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/29282740/use-of-tunisian-flavored-olive-oil-as-anisakicidal-agent-in-industrial-anchovy-marinating-process
#4
Najla Trabelsi, Stefania M Marotta, Filippo Giarratana, Amani Taamali, Mokhtar Zarrouk, Graziella Ziino, Alessandro Giuffrida
BACKGROUND: Natural compounds are more frequently used against Anisakis, responsible of an important fish borne disease, anisakidosis. The aim of the study was to evaluate the effectiveness of enriched Tunisian olive oil with different spices (Cumin, Turmeric, Clove, Thyme and Lemon) against Anisakis larvae Type 1. RESULTS: In vitro experiment: larvae were submerged separately in the above mentioned oils, and then, examined, to check viability. For each oil, LT50 and LT100 were calculated...
December 28, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29214371/biomechanical-investigation-of-lumbar-hybrid-stabilization-in-two-level-posterior-instrumentation
#5
Aldemar Andres Hegewald, Sebastian Hartmann, Alexander Keiler, Kai Michael Scheufler, Claudius Thomé, Werner Schmoelz
PURPOSE: Hybrid stabilization with a dynamic implant has been suggested to avoid adjacent segment disease by creating a smoother transition zone from the instrumented segments to the untreated levels above. This study aims to characterize the transition zones of two-level posterior instrumentation strategies for elucidating biomechanical differences between rigid fixation and the hybrid stabilization approach with a pedicle screw-based dynamic implant. METHODS: Eight human lumbar spines (L1-5) were loaded in a spine tester with pure moments of 7...
December 6, 2017: European Spine Journal
https://www.readbyqxmd.com/read/29202859/complications-of-lumbar-disc-herniations-following-trans-sacral-epiduroscopic-lumbar-decompression-a-single-center-retrospective-study
#6
Seung-Kook Kim, Su-Chan Lee, Seung-Woo Park, Eun-Sang Kim
BACKGROUND: Trans-sacral epiduroscopic lumbar decompression (SELD) is an emerging procedure for the treatment of lumbar disc herniation (LDH), with favorable outcomes having been reported. However, the complications associated with SELD have not been comprehensively evaluated to date. Therefore, the aim of our study was to describe the incidence rate, types, and characteristics of complications following SELD and management outcomes. METHODS: Retrospective analysis of the surgical and clinical outcomes for 127 patients (average age, 42...
December 4, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29146435/epidemiology-and-management-of-spinal-trauma-in-children-and-adolescents-under-18-years-old
#7
Asdrubal Falavigna, Orlando Righesso, Pedro Guarise da Silva, Felix Adolfo Sanchez Chavez, Ericson Sfreddo, Leandro Pelegrini de Almeida, Manuel Jose Valencia Carrasco, Andrei Fernandes Joaquim
STUDY DESIGN: Retrospective study. OBJECTIVE: Report the epidemiology, clinical aspects and management of spinal trauma in children and adolescents. METHODS: Multicenter study of 215 cases of spinal trauma in individuals younger than 18 years of age. All patients were submitted to preoperative and postoperative radiological and clinical evaluation. The fractures were classified according to the AOSpine fracture classification. Neurological evaluation was performed using the Frankel Scale at admission to hospital and at the last follow-up...
November 13, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29145287/transforaminal-endoscopy-in-lumbar-burst-fracture-a-case-report
#8
Yuanyi Wang, Cong Ning, Liyu Yao, Xiuying Huang, Chengliang Zhao, Bin Chen, Nan Zhang
RATIONALE: Lumbar burst fractures are frequent injury resulting from high-energy trauma, and the patients suffer from pain and the neurologic dysfunction. Although minimally invasive techniques have advanced rapidly, it was the first time to apply transforaminal endoscopic combined with percutaneous pedicle screw fixation to treatment of lumbar burst fractures. PATIENT CONCERNS: A 33-year-old man underwent Magerl type A3.1 burst fracture at L2 and compression fractures at L3 due to falling from a height with severe lower back pain, sensory loss, and atony of the right leg...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29096153/uptake-and-speciation-of-uranium-in-synthetic-gypsum-caso4%C3%A2-2h2o-applications-to-radioactive-mine-tailings
#9
Jinru Lin, Wei Sun, Jacques Desmarais, Ning Chen, Renfei Feng, Patrick Zhang, Dien Li, Arthur Lieu, John S Tse, Yuanming Pan
Phosphogypsum formed from the production of phosphoric acid represents by far the biggest accumulation of gypsum-rich wastes in the world and commonly contains elevated radionuclides, including uranium, as well as other heavy metals and metalloids. Therefore, billions-of-tons of phosphogypsum stockpiled worldwide not only possess serious environmental problems but also represent a potential uranium resource. Gypsum is also a major solid constituent in many other types of radioactive mine tailings, which stems from the common usage of sulfuric acid in extraction processes...
October 26, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/29032017/editorial-next-generation-sequencing-technology-a-new-tool-for-killer-cell-immunoglobulin-like-receptor-allele-typing-in-hematopoietic-stem-cell-transplantation
#10
B Maniangou, C Retière, K Gagne
Killer cell Immunoglobulin-like Receptor (KIR) genes are a family of genes located together within the leukocyte receptor cluster on human chromosome 19q13.4. To date, 17 KIR genes have been identified including nine inhibitory genes (2DL1/L2/L3/L4/L5A/L5B, 3DL1/L2/L3), six activating genes (2DS1/S2/S3/S4/S5, 3DS1) and two pseudogenes (2DP1, 3DP1) classified into group A (KIR A) and group B (KIR B) haplotypes. The number and the nature of KIR genes vary between the individuals. In addition, these KIR genes are known to be polymorphic at allelic level (907 alleles described in July 2017)...
October 11, 2017: Transfusion Clinique et Biologique: Journal de la Société Française de Transfusion Sanguine
https://www.readbyqxmd.com/read/28938147/development-of-an-experimental-model-of-burst-fracture-with-damage-characterization-of-the-vertebral-bodies-under-dynamic-conditions
#11
A Germaneau, T Vendeuvre, M Saget, P Doumalin, J C Dupré, F Brémand, F Hesser, C Brèque, P Maxy, M Roulaud, O Monlezun, P Rigoard
BACKGROUND: Burst fractures represent a significant proportion of fractures of the thoracolumbar junction. The recent advent of minimally invasive techniques has revolutionized the surgical treatment of this type of fracture. However mechanical behaviour and primary stability offered by these solutions have to be proved from experimental validation tests on cadaveric specimens. Therefore, the aim of this study was to develop an original and reproducible model of burst fracture under dynamic impact...
September 13, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28802716/presence-of-modic-type-1-change-increases-risk-of-postoperative-pyogenic-discitis-following-decompression-surgery-for-lumbar-canal-stenosis
#12
Ken Ninomiya, Nobuyuki Fujita, Naobumi Hosogane, Tomohiro Hikata, Kota Watanabe, Osahiko Tsuji, Narihito Nagoshi, Mitsuru Yagi, Shinjiro Kaneko, Yasuyuki Fukui, Takahiro Koyanagi, Tateru Shiraishi, Takashi Tsuji, Masaya Nakamura, Morio Matsumoto, Ken Ishii
STUDY DESIGN: Multicenter retrospective study. BACKGROUND: Postoperative surgical site infection is one of the most serious complications following spine surgery. Previous studies do not appear to have investigated pyogenic discitis following lumbar laminectomy without discectomy. This study aimed to identify risk factors for postoperative pyogenic discitis following lumbar decompression surgery. METHODS: We examined data from 2721 patients undergoing lumbar laminectomy without discectomy in five hospitals from April 2007 to March 2012...
August 10, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28780152/functional-genomic-exploration-reveals-that-ss-riok-1-is-essential-for-the-development-and-survival-of-strongyloides-stercoralis-larvae
#13
Wang Yuan, Huan Zhou, James B Lok, Weiqiang Lei, Siyuan He, Robin B Gasser, Rui Zhou, Rui Fang, Yanqin Zhou, Junlong Zhao, Min Hu
Protein kinase RIOK-1 is a non-ribosomal factor essential for rRNA cleavage and ribosome small subunit maturation. It is encoded in all eukaryotic organisms. The RIOK-1 encoding gene of Caenorhabditis elegans (Ce-riok-1) is expressed in the neuronal and reproductive systems in larvae and adults of this free-living nematode, and it supports larval growth and development of the adult gonad. In spite of its recognised roles in model organisms such as C. elegans, little is known about the function of this molecule in parasitic nematodes...
August 3, 2017: International Journal for Parasitology
https://www.readbyqxmd.com/read/28757011/presence-and-mechanisms-of-acquired-antimicrobial-resistance-in-belgian-brachyspira-hyodysenteriae-isolates-belonging-to-different-clonal-complexes
#14
M Mahu, F Pasmans, K Vranckx, N De Pauw, L Vande Maele, Philip Vyt, Tamara Vandersmissen, A Martel, F Haesebrouck, F Boyen
Swine dysentery (SD) is an economically important disease for which antimicrobial treatment still occupies an important place to control outbreaks. However, acquired antimicrobial resistance is increasingly observed in Brachyspira hyodysenteriae. In this study, the Minimal Inhibitory Concentrations (MIC) of six antimicrobial compounds for 30 recent Belgian B. hyodysenteriae isolates were determined using a broth microdilution method. In addition, relevant regions of the 16S rRNA, 23S rRNA and the L3 protein encoding genes were sequenced to reveal mutations associated with acquired resistance...
August 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28700441/leiomyoma-with-bizarre-nuclei-clinical-and-pathologic-features-of-30-patients
#15
Mehmet Kefeli, Sultan Caliskan, Emel Kurtoglu, Levent Yildiz, Arif Kokcu
Leiomyoma with bizarre nuclei (LBN) have significant cytologic atypia, but high mitotic rate and tumor cell necrosis are absent. Although it is a benign leiomyoma variant, recurrent cases have been described. In this study, we investigated the clinical and pathologic features of LBN and compared them with related studies. A total of 30 patients diagnosed with LBN in our department were included in this study. In all cases, clinical data (age, complaint, surgery type), macroscopic features (size, location, number of leiomyomas, necrosis, and hemorrhage), microscopic features (bizarre cell distribution, bizarre cell density, cellularity, mitotic rate, tumor margin, necrosis, nuclear pseudoinclusions, karyorrhectic nuclei, prominent eosinophilic nucleoli with perinucleolar clearing, cytoplasmic eosinophilic inclusions, staghorn vessels, and alveolar-type edema), and follow-up data (recurrence and survival period) were evaluated...
July 11, 2017: International Journal of Gynecological Pathology
https://www.readbyqxmd.com/read/28685537/effect-of-xianling-gubao-capsules-on-bone-mineral-density-in-osteoporosis-patients
#16
Z H Wu, X Zhu, C K Xu, Y J Chen, L Zhang, C L Zhang
This paper aimed to analyze the clinical effects of Xianling Gubao capsules on the bone mineral density (BMD) of 94 patients with osteoporosis. After reviewing and analyzing the clinical information in our hospital from January 2015 to January 2016, the patients were divided into a control group and a treatment group with 47 cases in each group. Patients in the control group were treated with routine Western medicine, while the treatment group received Xianling Gubao capsules. Both groups were treated continuously for 3 courses (30 days each course) and had their BMD analyzed and compared...
April 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28647183/activity-of-tagetes-minuta-linnaeus-asteraceae-essential-oil-against-l3-anisakis-larvae-type-1
#17
Filippo Giarratana, Daniele Muscolino, Graziella Ziino, Alessandro Giuffrida, Stefania Maria Marotta, Vittorio Lo Presti, Vincenzo Chiofalo, Antonio Panebianco
OBJECTIVE: To evaluate in vitro effects of Tagetes minuta L. essential oil (TEO) on L3 Anisakis larvae type 1. METHODS: In order to evaluate the potential use of Tagetes minuta essential oil against L3 Anisakis larvae three different media were tested: 1) a saline solution (SS); 2) an industrial marinating solution (MS); 3) sunflower seeds oil (SO). For each media and concentrations of TEO (0.1%, 0.5%, 1.0% and 5.0% v/v), 20 parasites were introduced into plastic Petri dishes (diameter 90 mm) and maintained at room temperature...
May 2017: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/28644887/sarcopenia-is-a-predictive-factor-for-intestinal-resection-in-admitted-patients-with-crohn-s-disease
#18
Shigeki Bamba, Masaya Sasaki, Azusa Takaoka, Kenichiro Takahashi, Hirotsugu Imaeda, Atsushi Nishida, Osamu Inatomi, Mitsushige Sugimoto, Akira Andoh
The relationship between skeletal muscle volume and the prognosis of patients with inflammatory bowel disease (IBD) remains undetermined. We conducted a retrospective study of 72 IBD patients who were admitted to the hospital due to disease exacerbation. We enrolled IBD patients who had undergone abdominal computed tomography and assessed the nutritional indices, such as the Onodera's prognostic nutritional index (O-PNI) and the controlling nutritional status (CONUT) index. The L3 skeletal muscle index (SMI), which is the ratio of the cross-sectional area of skeletal muscles at the level of the third lumbar (L3) vertebra to the height squared, was used to identify sarcopenia...
2017: PloS One
https://www.readbyqxmd.com/read/28632550/suture-choice-in-lumbar-dural-closure-contributes-to-variation-in-leak-pressures-experimental-model
#19
George M Ghobrial, Christopher M Maulucci, Matthew J Viereck, Sara Beygi, Ameet Chitale, Srinivas Prasad, Jack Jallo, Joshua Heller, Ashwini D Sharan, James S Harrop
STUDY DESIGN: Open-label laboratory investigational study; non-animal surgical simulation. OBJECTIVE: The authors perform a comparison of dural closure strength in a durotomy simulator across 2 different suture materials. SUMMARY OF BACKGROUND DATA: Incidental durotomy leading to persistent cerebrospinal fluid leak adds considerable morbidity to spinal procedures, often complicating routine elective lumbar spinal procedures. Using an experimental durotomy simulation, the authors compare the strength of closure using Gore-Tex with other suture types and sizes, using various closure techniques...
July 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28630201/combined-effect-of-the-cfr-methyltransferase-and-ribosomal-protein-l3-mutations-on-resistance-to-ribosome-targeting-antibiotics
#20
Kevin K Pakula, Lykke H Hansen, Birte Vester
Several groups of antibiotics inhibit bacterial growth by binding to bacterial ribosomes. Mutations in ribosomal protein L3 have been associated with resistance to linezolid and tiamulin, which both bind at the peptidyl transferase center in the ribosome. Resistance to these and other antibiotics also occurs through methylation of 23S rRNA at position A2503 by the methyltransferase Cfr. The mutations in L3 and the cfr gene have been found together in clinical isolates, raising the question of whether they have a combined effect on antibiotic resistance or growth...
September 2017: Antimicrobial Agents and Chemotherapy
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