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https://www.readbyqxmd.com/read/27930895/osteoarthrosis-of-temporomandibular-joint-related-to-the-defects-of-posterior-dentition-a-retrospective-study
#1
Jitka Levorová, Vladimír Machoň, Anasuya Guha, René Foltán
Osteoarthrosis (OA) of temporomandibular joint (TMJ) is a progressive degenerative disease, gradually affecting cartilage, synovial membrane and bone structures. OA of TMJ clinically manifests with joint noises, pain and restricted mouth opening. In late stages, it results in severe damage of TMJ structures and development of ankylosis. Osteoarthrosis is a multifactorial disease; the occurrence is associated with TMJ overloading. The cohort included 619 patients [538 women (87%) and 81 men (13%), with average age 40...
2016: Prague Medical Report
https://www.readbyqxmd.com/read/27929155/electrolytes-at-interfaces-accessing-the-first-nanometers-using-x-ray-standing-waves
#2
Soumaya Ben Jabrallah, Florent Malloggi, Luc Belloni, Luc Girard, Dmitri Novikov, Cristian Mocuta, Dominique Thiaudière, Jean Daillant
Ion-surface interactions are of high practical importance in a wide range of technological, environmental and biological problems. In particular, they ultimately control the electric double layer structure, hence the interaction between particles in aqueous solutions. Despite numerous achievements, progress in their understanding is still limited by the lack of experimental determination of the surface composition with appropriate resolution. Tackling this challenge, we have developed a method based on X-ray standing waves coupled to nano-confinement which allows the determination of ion concentrations at a solid-solution interface with a sub-nm resolution...
December 8, 2016: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/27927501/morphometric-analysis-of-the-thoracic-intervertebral-foramen-osseous-anatomy-in-adolescent-idiopathic-scoliosis-using-low-dose-computed-tomography
#3
Thorbjorn J Loch-Wilkinson, Maree T Izatt, Robert D Labrom, Geoffrey N Askin, Mark J Pearcy, Clayton J Adam
PURPOSE: The dimensions of the thoracic intervertebral foramen in adolescent idiopathic scoliosis (AIS) have not previously been quantified. Better understanding of the dimensions of the foramen may be useful in surgical planning. This study describes a reproducible method for measurement of the thoracic foramen in AIS using computed tomography (CT). METHODS: In 23 preoperative female patients with Lenke 1 type AIS with right-side convexity major curves confined to the thoracic spine the foraminal height (FH), foraminal width (FW), pedicle to superior articular process distance (P-SAP), and cross-sectional foraminal area (FA) were measured using multiplanar reconstructed CT...
May 2016: Spine Deformity
https://www.readbyqxmd.com/read/27920363/detection-of-imprinting-effects-for-qualitative-traits-on-x-chromosome-based-on-nuclear-families
#4
Ji-Yuan Zhou, Xiao-Ping You, Ran Yang, Wing Kam Fung
Methods for detecting imprinting effects have been developed primarily for autosomal markers. However, no method is available in the literature to test for imprinting effects on X chromosome. Therefore, it is necessary to suggest methods for detecting such imprinting effects. In this article, the parental-asymmetry test on X chromosome (XPAT) is first developed to test for imprinting for qualitative traits in the presence of association, based on family trios each with both parents and their affected daughter...
December 5, 2016: Statistical Methods in Medical Research
https://www.readbyqxmd.com/read/27916034/-the-mid-to-long-term-effect-of-wallis-lumbar-interspinous-dynamic-stabilization-on-the-adjacent-segment-degeneration
#5
X Yuan, C Kong, X M Chen, L B Cui, S J Xu, Y D Liu
Objective: To explore the mid- to long-term effect of Wallis interspinous dynamic stabilization system on the adjacent segment degeneration. Methods: From March 2009 to June 2010, in Department of Orthopedics, Beijing Luhe Hospital, Capital Medical University, 24 patients with L4-5 monosegmental lumbar disc herniation were treated with posterior lumbar decompression combined with Wallis interspinous dynamic fixation. Clinical outcomes were evaluated with visual analogue score (VAS) (back pain), VAS (leg pain) and oswestry disability index (ODI) score...
December 1, 2016: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/27909272/-novel-sternum-closure-technique-using-ultra-high-molecular-weight-polyethylene-sutures
#6
Takashi Ando, Daichi Akiyama, Hiroshi Okada, Hiroshi Furukawa, Makoto Takeda
During cardiac surgery through midline sternotomy, sternum closure metal wires are usually used for. However, metal wires may damage the sternum and cause artifacts on X-ray. Therefore, we use a novel sternum closure technique in which metal wire is replaced by ultra-high molecular weight polyethylene(UHMWP) sutures. We have used this technique for 89 patients in 2014 and reviewed our experience. UHMWPs are often used for bone fracture cerclage, particularly in the vertebral body. UHMWPs may avoid sternal "cheese-cut" dehiscence...
December 2016: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/27903019/osteochondroma-presenting-as-a-calcified-mass-in-the-sellar-region-and-review-of-the-literature
#7
Kazuya Sekiguchi, Satoshi Tsutsumi, Sho Arai, Senshu Nonaka, Takamoto Suzuki, Hisato Ishii, Hiroshi Izumi, Yukimasa Yasumoto
Objective Osteochondroma (OC) is the most common benign bone neoplasm. It infrequently occurs in the cranial cavity as a calcified lesion and very rarely presents in the sellar region. The present study summarizes the knowledge about OCs of the sellar region. Methods We searched the literature search for the clinical appearance of OCs and other calcified pathologies occurring in the sellar region. Results A total of 21 English-language articles published from 1961 to 2015 documented cases of calcified lesions in the sellar region including cerebral aneurysm, chondroid chordoma, chondroma, craniopharyngioma, OC, odontome, osteoma, pituitary adenoma, pituitary stone, Rathke cleft cyst, retinoblastoma, schwannoma, and xanthogranuloma...
November 30, 2016: Journal of Neurological Surgery. Part A, Central European Neurosurgery
https://www.readbyqxmd.com/read/27901202/in-vivo-performance-of-different-scaffolds-for-dental-pulp-stem-cells-induced-for-odontogenic-differentiation
#8
Cigdem Atalayin, Huseyin Tezel, Taner Dagci, Nefise Ulku Karabay Yavasoglu, Gulperi Oktem, Timur Kose
This study was designed to determine the in vivo performance of three different materials as scaffolds for dental pulp stem cells (DPSC) undergoing induced odontogenic differentiation. An odontogenic medium modified by the addition of recombinant human bone morphogenetic protein 2 was used in the experimental groups to induce differentiation. Mesenchymal stem cell medium was used in the control groups. DPSC were transplanted onto the backs of mice via three scaffolds: copolymer of L-lactide and DL-lactide (PLDL), copolymer of DL-lactide (PDL) and hydroxyapatite tricalcium phosphate (HA/TCP)...
November 28, 2016: Brazilian Oral Research
https://www.readbyqxmd.com/read/27890112/an-autopsy-case-of-prolonged-asphyxial-death-caused-by-the-impacted-denture-in-the-esophagus
#9
Kazuhisa Funayama, Junko Fujihara, Haruo Takeshita, Hisakazu Takatsuka
A foreign body impacted in the esophagus is not a rare incident among adults or children. In adults, a dental prosthesis is prone to become impacted in the esophagus. The diagnostic difficulty of this often causes a delay in its removal, which can lead to serious complications, including death. This report describes the autopsy case of a man who died of prolonged asphyxiation induced by the delayed removal of an impacted denture, which was misdiagnosed on his first visit notwithstanding that a part of the denture could be seen on X-rays...
November 2016: Legal Medicine
https://www.readbyqxmd.com/read/27868167/the-role-of-ugandan-district-hospital-orthopedic-units-in-the-care-of-vulnerable-road-users-a-cross-sectional-study
#10
Dan K Kisitu, Lauren E Eyler, Isaac Kajja, Gonzaga Waiswa, Titus Beyeza, David R Ragland, Isabelle Feldhaus, Catherine Juillard, Rochelle A Dicker
BACKGROUND: Musculoskeletal injuries are a common cause of morbidity after road traffic injury (RTI) in motorizing countries. District hospitals provide front-line orthopedic care in Uganda and other sub-Saharan African nations. Improving care at the district hospital level is an important component of the World Health Organization's strategy for surgical and trauma systems strengthening, but the data necessary to inform RTI safety and care initiatives has previously been insufficient at the district hospital level...
December 2016: Injury Epidemiology
https://www.readbyqxmd.com/read/27856659/new-treatment-targets-for-axial-spondyloarthritis
#11
REVIEW
Joachim Sieper
Axial spondyloarthritis (axSpA) patients can be divided into those with structural damage in the SI joint visible on X-rays, termed radiographic axSpA or AS, and those in an earlier phase of the disease, without structural damage in the SI joint, termed non-radiographic axSpA. TNF-blockers have been shown to be highly effective in the treatment of active axSpA. Interestingly, conventional DMARDs and also non-TNF-blocker biologics targeting IL-1, IL-6 and T cells (abatacept) are not effective. Recent interest has focused on the cytokines IL-23 and IL-17 as potential treatment targets in axSpA...
December 2016: Rheumatology
https://www.readbyqxmd.com/read/27855469/right-sided-heart-failure-and-extracorporeal-life-support-in-patients-undergoing-pericardiectomy-for-constrictive-pericarditis-a-risk-factor-analysis-for-adverse-outcome
#12
Erik Beckmann, Issam Ismail, Serghei Cebotari, Alexander Busse, Andreas Martens, Malakh Shrestha, Christian Kühn, Axel Haverich, Christine Fegbeutel
Background Right ventricular failure is a life-threatening postoperative complication after pericardiectomy. We conducted a retrospective study with a special emphasis on right ventricular failure. Methods Between June 1997 and September 2011, 69 patients underwent surgical pericardiectomy at our center. Mean age was 59 ( ±  15.5) years, and 49 (71%) patients were male. Causes of constrictive pericarditis included idiopathic (52%, n = 36), tuberculosis (9%, n = 6), postcardiotomy (12%, n = 8), radiation (4%, n = 3), renal insufficiency (12%, n = 8), and autoimmune disease (12%, n = 8)...
November 17, 2016: Thoracic and Cardiovascular Surgeon
https://www.readbyqxmd.com/read/27847846/does-computed-tomography-change-our-observation-and-management-of-fracture-non-unions
#13
Ydo V Kleinlugtenbelt, Vanessa A B Scholtes, Jay Toor, Christian Amaechi, Mario Maas, Mohit Bhandari, Rudolf W Poolman, Peter Kloen
BACKGROUND: The purpose of this study was to determine whether Multi-Detector Computed Tomography (MDCT) in addition to plain radiographs influences radiologists' and orthopedic surgeons' diagnosis and treatment plans for delayed unions and non-unions. METHODS: A retrospective database of 32 non-unions was reviewed by 20 observers. On a scale of 1 to 5, observers rated on X-Ray and a subsequent Multi Detector Helical Computer Tomography (MDCT) scan was performed to determine the following categories: "healed", "bridging callus present", "persistent fracture line" or "surgery advised"...
October 2016: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/27833773/a-fatal-case-of-congenital-langerhans-cell-histiocytosis-with-disseminated-cutaneous-lesions-in-a-premature-neonate
#14
Michio Inoue, Yoko Tomita, Tsuyoshi Egawa, Tomoaki Ioroi, Masaaki Kugo, Shinsaku Imashuku
Background. The outcome of neonates with congenital cutaneous Langerhans cell histiocytosis (LCH) is variable. Observations. We report a case of LCH in a female premature neonate born at 33-week gestation. She had disseminated cutaneous lesions, which consisted of hemorrhagic papules and vesicles, with sparse healthy skin areas, and the hands and feet were contracted with scarring and blackened. She was in respiratory failure although no apparent pulmonary or bone lesions on X-rays were noted. Skin biopsy confirmed a diagnosis of LCH due to observation of CD1a(+) Langerhans cells, which lacked expression of E-cadherin and CD56...
2016: Case Reports in Pediatrics
https://www.readbyqxmd.com/read/27811975/photoelectron-holographic-atomic-arrangement-imaging-of-cleaved-bimetal-intercalated-graphite-superconductor-surface
#15
Fumihiko Matsui, Ritsuko Eguchi, Saki Nishiyama, Masanari Izumi, Eri Uesugi, Hidenori Goto, Tomohiro Matsushita, Kenji Sugita, Hiroshi Daimon, Yuji Hamamoto, Ikutaro Hamada, Yoshitada Morikawa, Yoshihiro Kubozono
From the C 1s and K 2p photoelectron holograms, we directly reconstructed atomic images of the cleaved surface of a bimetal-intercalated graphite superconductor, (Ca, K)C8, which differed substantially from the expected bulk crystal structure based on x-ray diffraction (XRD) measurements. Graphene atomic images were collected in the in-plane cross sections of the layers 3.3 Å and 5.7 Å above the photoelectron emitter C atom and the stacking structures were determined as AB- and AA-type, respectively. The intercalant metal atom layer was found between two AA-stacked graphenes...
November 4, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27798888/detection-of-redox-imbalance-in-normal-lymphocytes-with-induced-mitochondrial-dysfunction-epr-study
#16
Ekaterina Georgieva, Zhivko Zhelev, Ichio Aoki, Rumiana Bakalova, Tatsuya Higashi
The present study describes a new approach for direct imaging of redox status in live cells using paramagnetic spin-probes, which allows evaluation of the level of oxidative stress due to overproduction of superoxide. The method is based on redox cycling of cell/mitochondria-penetrating nitroxide radicals (e.g. mito-TEMPO) and their electron-paramagnetic resonance (EPR) contrast, which makes them useful molecular sensors for analysis of redox status and oxidative stress in cells and tissues. Oxidative stress was induced in normal human lymphocytes by treatment with 2-methoxyestradiol and rotenone (ME/Rot) at different concentrations...
October 2016: Anticancer Research
https://www.readbyqxmd.com/read/27790518/adult-idiopathic-renal-vein-thrombosis-mimicking-acute-pyelonephritis
#17
Arpan Choudhary, Prasenjit Majee, Rupesh Gupta, Supriyo Basu, Ranjit Kumar Das
Renal Vein Thrombosis (RVT) is a rarely encountered condition. It occurs due to a hypercoagulable state in the body, caused by nephrotic syndrome and membranous nephropathy in the adults. Mode of presentation is variable. In chronic form, it may remain silent for a long time and presenting later with symptoms of pedal oedema, varicocele, proteinuria. In acute state, it manifests as flank pain, nausea or haematuria. We present a case of 25-year-old male, with left sided flank pain, haematuria and nausea for 4 days...
September 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27787261/xds-a-flexible-beamline-for-x-ray-diffraction-and-spectroscopy-at-the-brazilian-synchrotron
#18
F A Lima, M E Saleta, R J S Pagliuca, M A Eleotério, R D Reis, J Fonseca Júnior, B Meyer, E M Bittar, N M Souza-Neto, E Granado
The majority of the beamlines at the Brazilian Synchrotron Light Source Laboratory (LNLS) use radiation produced in the storage-ring bending magnets and are therefore currently limited in the flux that can be used in the harder part of the X-ray spectrum (above ∼10 keV). A 4 T superconducting multipolar wiggler (SCW) was recently installed at LNLS in order to improve the photon flux above 10 keV and fulfill the demands set by the materials science community. A new multi-purpose beamline was then installed at the LNLS using the SCW as a photon source...
November 1, 2016: Journal of Synchrotron Radiation
https://www.readbyqxmd.com/read/27787248/effect-of-gamma-irradiation-on-x-ray-absorption-and%C3%A2-photoelectron-spectroscopy-of-nd-doped-phosphate-glass
#19
V N Rai, Parasmani Rajput, S N Jha, D Bhattacharyya, B N Raja Shekhar, U P Deshpande, T Shripathi
X-ray absorption near-edge structure (XANES) and X-ray photoelectron spectroscopy (XPS) of Nd-doped phosphate glasses have been studied before and after gamma irradiation. The intensity and the location of the white line peak of the L3-edge XANES of Nd are found to be dependent on the ratio O/Nd in the glass matrix. Gamma irradiation changes the elemental concentration of atoms in the glass matrix, which affects the peak intensity of the white line due to changes in the covalence of the chemical bonds with Nd atoms in the glass (structural changes)...
November 1, 2016: Journal of Synchrotron Radiation
https://www.readbyqxmd.com/read/27785534/three-dimensional-printing-and-patient-specific-pre-contoured-plate-future-of-acetabulum-fracture-fixation
#20
L Maini, A Sharma, S Jha, A Sharma, A Tiwari
PURPOSE: Due to the complexity of acetabulum, achieving anatomical contouring intra-operatively is difficult for surgeon. A 3D (dimensional) real model can facilitate us both in contouring the plate pre-operatively and in better pre-operative planning. Patient-specific pre-contoured plate in acetabular fracture has been studied by few researchers but randomized case-control study was lacking. Hence, we conducted a case-control study to evaluate the accuracy of patient-specific pre-contoured plate...
October 26, 2016: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
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