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https://www.readbyqxmd.com/read/28410713/axial-length-measurements-comparison-of-a-new-swept-source-optical-coherence-tomography-based-biometer-and-partial-coherence-interferometry-in-myopia
#1
Jong Yun Yang, Hong Kyu Kim, Sung Soo Kim
PURPOSE: To compare axial length (AL) measurements between a swept-source optical coherence tomography (SS-OCT) biometer (IOLMaster 700) and a partial coherence interferometry (PCI) biometer (IOLMaster, version 5.4) in myopic eyes. SETTING: Severance Hospital, Yonsei University, Seoul, South Korea. DESIGN: Prospective evaluation of a diagnostic test. METHODS: This study enrolled patients with a diagnosis of myopia in their medical records...
March 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28405580/temporomandibular-joint-reconstruction-with-alloplastic-prosthesis-the-outcomes-of-four-cases
#2
Jung-Hyun Park, Eun Jo, Hoon Cho, Hyung Jun Kim
BACKGROUND: The purpose of this study is to evaluate the outcomes of four patients receiving stock Biomet TMJ prosthesis for reconstruction of the TMJs. METHODS: TMJ reconstruction with stock Biomet TMJ prosthesis was performed in four patients who had joint damages by trauma, tumor, resorption, and ankylosis, which represent the indications of alloplastic prosthesis. RESULTS: Loss of condyle from trauma and resorption of joint are good indications for prosthesis, but the patients should be informed about limitation of jaw movement...
December 2017: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28405187/identification-of-cerebral-metal-ion-imbalance-in-the-brain-of-aging-octodon-degus
#3
Nady Braidy, Anne Poljak, Chris Marjo, Helen Rutlidge, Anne Rich, Bat-Erdene Jugder, Tharusha Jayasena, Nibaldo C Inestrosa, Perminder S Sachdev
The accumulation of redox-active transition metals in the brain and metal dyshomeostasis are thought to be associated with the etiology and pathogenesis of several neurodegenerative diseases, and Alzheimer's disease (AD) in particular. As well, distinct biometal imaging and role of metal uptake transporters are central to understanding AD pathogenesis and aging but remain elusive, due inappropriate detection methods. We therefore hypothesized that Octodon degus develop neuropathological abnormalities in the distribution of redox active biometals, and this effect may be due to alterations in the expression of lysosomal protein, major Fe/Cu transporters, and selected Zn transporters (ZnTs and ZIPs)...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28402713/optical-biometry-derived-axial-length-measurements-following-intravitreal-anti-vascular-endothelial-growth-factor-treatment-for-macular-edema
#4
George D Kymionis, Athanassios Giarmoukakis, Ioanna K Apostolidi, Styliani V Blazaki, Konstantinos I Tsoulnaras, Joanna Moschandrea, Sofia Panagopoulou, Miltiadis K Tsilimbaris
PURPOSE: To evaluate axial length (AL) alterations in patients with macular disease over the course of intravitreal anti-vascular endothelial growth factor (anti-VEGF) treatment. METHODS: In this prospective, comparative study, 33 patients with macular edema underwent unilaterally intravitreal anti-VEGF therapy and were followed for two months; the contralateral eyes were considered as controls. Central retinal thickness (CRT) was measured with spectral-domain optical coherence tomography and AL with an IOL-Master optical biometer...
April 12, 2017: Seminars in Ophthalmology
https://www.readbyqxmd.com/read/28401081/zinc-in-pancreatic-islet-biology-insulin-sensitivity-and-diabetes
#5
REVIEW
Wolfgang Maret
About 20 chemical elements are nutritionally essential for humans with defined molecular functions. Several essential and nonessential biometals are either functional nutrients with antidiabetic actions or can be diabetogenic. A key question remains whether changes in the metabolism of biometals and biominerals are a consequence of diabetes or are involved in its etiology. Exploration of the roles of zinc (Zn) in this regard is most revealing because 80 years of scientific discoveries link zinc and diabetes...
March 2017: Preventive Nutrition and Food Science
https://www.readbyqxmd.com/read/28390770/rationale-and-design-of-the-marrowstim-pad-kit-for-the-treatment-of-critical-limb-ischemia-in-subjects-with-severe-peripheral-arterial-disease-mobile-trial-investigating-autologous-bone-marrow-cell-therapy-for-critical-limb%C3%A2-ischemia
#6
S Keisin Wang, Linden A Green, Raghu L Motaganahalli, Michael G Wilson, Andres Fajardo, Michael P Murphy
OBJECTIVE: Critical limb ischemia (CLI) continues to place a significant encumbrance on patients and the health care system as it progresses to limb loss and long-term disability. Traditional methods of revascularization offer a significant benefit; however, for one-third of CLI patients, these surgical options are not technically possible or patency is severely limited by disease burden (deemed "poor-option" for revascularization). In a previous phase I trial, we demonstrated intramuscular injection of concentrated bone marrow aspirate (cBMA) via MarrowStim (Zimmer Biomet, Warsaw, Ind) harvest is safe and may decrease major amputation in patients with CLI unfit for surgical revascularization...
April 5, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28385933/risk-factors-for-post-operative-periprosthetic-fractures-following-primary-total-hip-arthroplasty-with-a-proximally-coated-double-tapered-cementless-femoral-component
#7
K Gromov, A Bersang, C S Nielsen, T Kallemose, H Husted, A Troelsen
AIMS: The aim of this study was to identify patient- and surgery-related risk factors for sustaining an early periprosthetic fracture following primary total hip arthroplasty (THA) performed using a double-tapered cementless femoral component (Bi-Metric femoral stem; Biomet Inc., Warsaw, Indiana). PATIENTS AND METHODS: A total of 1598 consecutive hips, in 1441 patients receiving primary THA between January 2010 and June 2015, were retrospectively identified. Level of pre-operative osteoarthritis, femoral Dorr type and cortical index were recorded...
April 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28378582/low-affinity-zinc-sensor-showing-fluorescence-responses-with-minimal-artifacts
#8
Xinhao Yan, Jin Ju Kim, Hye Sun Jeong, Yu Kyung Moon, Yoon Kyung Cho, Soyeon Ahn, Sang Beom Jun, Hakwon Kim, Youngmin You
The study of the zinc biology requires molecular probes with proper zinc affinity. We developed a low-affinity zinc probe (HBO-ACR) based on an azacrown ether (ACR) and an 2-(2-hydroxyphenyl)benzoxazole (HBO) fluorophore. This probe design imposed positive charge in the vicinity of a zinc coordination center, which enabled fluorescence turn-on responses to high levels of zinc without being affected by the pH and the presence of other transition-metal ions. Steady-state and transient photophysical investigations suggested that such a high tolerance benefits from orchestrated actions of proton-induced nonradiative and zinc-induced radiative control...
April 5, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28375152/metallomics-a-primer-of-integrated-biometal-sciences-by-wolfgang-maret-imperial-college-press-2016-pp-xiii-141-price-gbp-30-00-paperback-isbn-978-1-78326-828-3-gbp-56-00-hardback-isbn-978-1-78326-827-6
#9
https://www.readbyqxmd.com/read/28367046/a-prospective-study-of-anterior-segment-ocular-parameters-in-anisometropia
#10
Neha Singh, Jolly Rohatgi, Vinod Kumar
PURPOSE: The aim of this study was to investigate the differences in anterior segment ocular parameters in anisometropia >1 D. METHODS: This study included 202 eyes of 101 subjects ranging from 10 to 40 years of age with anisometropia of 1 D or more. The subjects were divided into groups according to anisomyopia, anisoastigmatism, and anisohypermetropia. After providing informed consent, each patient underwent a detailed ophthalmological examination including cycloplegic refraction, best-corrected visual acuity, cover test, axial length (AL) measurement using A-scan ultrasound biometer, keratometry, anterior chamber depth, and central corneal thickness measurement...
April 2017: Korean Journal of Ophthalmology: KJO
https://www.readbyqxmd.com/read/28341265/does-a-titanium-sleeve-reduce-the-frequency-of-pseudotumors-in-metal-on-metal-total-hip-arthroplasty-at-5-7years-follow-up
#11
M H Hjorth, N Egund, I Mechlenburg, J Gelineck, S S Jakobsen, K Soballe, M Stilling
INTRODUCTION: Little is known about pseudotumor frequency and risk factors for pseudotumor formation among different types of metal-on-metal (MoM) hip arthroplasties. A lower release of chromium and cobalt have been reported in MoM hip arthroplasties with a titanium sleeve compared to MoM designs without a titanium sleeve, but yet it is unknown whether a titanium sleeve reduces the pseudotumor frequency. We conducted a cross-sectional study to investigate: 1) pseudotumor frequency, 2) risk factors of pseudotumor formation 3) and correlations between pseudotumors, serum metal-ions, implant position, and clinical symptoms...
December 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28337986/simultaneous-treatment-of-temporomandibular-joint-ankylosis-with-severe-mandibular-deficiency-by-standard-tmj-prosthesis
#12
YiHui Hu, LuZhu Zhang, DongMei He, Chi Yang, MinJie Chen, ShanYong Zhang, Hui Li, Edward Ellis Iii
Temporomandibular joint (TMJ) ankylosis is a refractory disease that is difficult to predictably treat. This study evaluated the prognosis of using standard alloplastic TMJ prostheses for the treatment of TMJ ankylosis in Chinese patients with severe mandibular deficiency. Patients treated from 2013 to 2015 were reviewed. The computer-aided design and manufacture (CAD/CAM) technique was used to guide bony mass removal and locate the TMJ prosthesis (Biomet, USA). Eleven patients were included in this study. All prostheses were successfully installed and stabilized intraoperatively...
March 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28334055/the-effect-of-coded-healing-abutments-on-treatment-duration-and-clinical-outcome-a-randomized-controlled-clinical-trial-comparing-encode-and-conventional-impression-protocols
#13
Jaafar Abduo, Chen Chen, Eugene Le Breton, Alexandra Radu, Josephine Szeto, Roy Judge, Ivan Darby
PURPOSE: To compare the Encode impression protocol (Biomet 3i) with the conventional impression protocol in terms of treatment duration, clinical accuracy, and outcome up to the first postplacement review of single-implant crowns. MATERIALS AND METHODS: A total of 45 implants were included in this study. The implants were randomly allocated to the Encode group (23 implants) or the conventional group (22 implants). At the time of surgery, all implants received two-piece Encode healing abutments...
March 23, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28326442/long-term-follow-up-of-a-non-randomised-prospective-cohort-of-one-hundred-and-ninety-two-total-knee-arthroplasties-using-the-nexgen-implant
#14
Alfredo Schiavone Panni, Franceso Falez, Rocco D'Apolito, Katia Corona, Carlo Perisano, Michele Vasso
PURPOSE: The purpose of this study was to retrospectively analyse the clinical, functional and radiological outcomes, and the long-term survivorship of the NexGen Legacy Posterior Stabilised (LPS) knee prosthesis (Zimmer Biomet, Warsaw, IN, USA). METHODS: Between 1996 and 2001, 197 primary NexGen LPS total knee arthroplasties (TKAs) were implanted by a single surgeon; 132 prostheses in 124 patients with a minimum follow-up of 15 years were included in the study...
March 22, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28323401/zinc-and-copper-effects-on-stability-of-tubulin-and-actin-networks-in-dendrites-and-spines-of-hippocampal-neurons
#15
Laura Perrin, Stephane Roudeau, Asuncion Carmona, Florelle Domart, Jennifer D Petersen, Sylvain Bohic, Yang Yang, Peter Cloetens, Richard Ortega
Zinc and copper ions can modulate the activity of glutamate-receptors. However, labile zinc and copper ions likely represent only the tip of the iceberg and other neuronal functions are suspected for these metals in their bound state. We performed synchrotron X-ray fluorescence imaging with 30 nm resolution to image total biometals in dendrites and spines from hippocampal neurons. We found that zinc is distributed all along the dendrites while copper is mainly pinpointed within the spines. In spines, zinc content is higher within the spine head while copper is higher within the spine neck...
March 21, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28317681/comparison-of-biometry-and-intraocular-lens-power-calculation-performed-by-a-new-optical-biometry-device-and-a-reference-biometer
#16
Bruna V Ventura, Marcelo C Ventura, Li Wang, Douglas D Koch, Mitchell P Weikert
PURPOSE: To compare biometry measurements and intraocular lens (IOL) power calculations obtained by a new optical A-scan interferometer biometer (Galilei G6) (new biometer) and a partial coherence interferometer biometer (IOLMaster 500) (reference biometer). SETTING: Private practice, Recife, Brazil. DESIGN: Retrospective comparative study. METHODS: Cataract patients who had biometric measurements with the new biometer and the reference biometer were included in the study...
January 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28295954/clinical-quantitative-susceptibility-mapping-qsm-biometal-imaging-and-its-emerging-roles-in-patient-care
#17
REVIEW
Yi Wang, Pascal Spincemaille, Zhe Liu, Alexey Dimov, Kofi Deh, Jianqi Li, Yan Zhang, Yihao Yao, Kelly M Gillen, Alan H Wilman, Ajay Gupta, Apostolos John Tsiouris, Ilhami Kovanlikaya, Gloria Chia-Yi Chiang, Jonathan W Weinsaft, Lawrence Tanenbaum, Weiwei Chen, Wenzhen Zhu, Shixin Chang, Min Lou, Brian H Kopell, Michael G Kaplitt, David Devos, Toshinori Hirai, Xuemei Huang, Yukunori Korogi, Alexander Shtilbans, Geon-Ho Jahng, Daniel Pelletier, Susan A Gauthier, David Pitt, Ashley I Bush, Gary M Brittenham, Martin R Prince
Quantitative susceptibility mapping (QSM) has enabled magnetic resonance imaging (MRI) of tissue magnetic susceptibility to advance from simple qualitative detection of hypointense blooming artifacts to precise quantitative measurement of spatial biodistributions. QSM technology may be regarded to be sufficiently developed and validated to warrant wide dissemination for clinical applications of imaging isotropic susceptibility, which is dominated by metals in tissue, including iron and calcium. These biometals are highly regulated as vital participants in normal cellular biochemistry, and their dysregulations are manifested in a variety of pathologic processes...
March 10, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28294406/does-transient-increase-in-axial-length-during-accommodation-attenuate-with-age
#18
Deborah S Laughton, Amy L Sheppard, Edward A H Mallen, Scott A Read, Leon N Davies
BACKGROUND: The aim was to profile transient accommodative axial length changes from early adulthood to advanced presbyopia and to determine whether any differences exist between the responses of myopic and emmetropic individuals. METHODS: Ocular biometry was measured by the LenStar biometer (Haag-Streit, Switzerland) in response to zero, 3.00 and 4.50 D accommodative stimuli in 35 emmetropes and 37 myopes, aged 18 to 60 years. All results were corrected to reduce errors arising from the increase in crystalline lens thickness with accommodation...
March 12, 2017: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/28273542/microbial-attenuation-of-atrazine-in-agricultural-soils-biometer-assays-bacterial-taxonomic-diversity-and-catabolic-genes
#19
James F Douglass, Mark Radosevich, Olli H Tuovinen
The purpose of this study was to examine the potential biomineralization of atrazine and identification of atrazine-degrading bacteria in agricultural soils. Different atrazine application histories of soils impacted the kinetics of biomineralization but not the presence of catabolic genes of two atrazine degradative pathways (Trz and Atz). Biomineralization was based on the measurement of (14)CO2 from [U-ring-(14)C]-atrazine in surface soil (0-7 cm) samples incubated in biometers. Aerobic atrazine biomineralization rate constants (k) varied in the range of 0...
February 22, 2017: Chemosphere
https://www.readbyqxmd.com/read/28263734/comparison-of-axial-length-corneal-and-anterior-chamber-depth-measurements-of-two-recently-introduced-devices-to-a-known-biometer
#20
Mehdi Shajari, Carla Cremonese, Kerstin Petermann, Pankaj Singh, Michael Müller, Thomas Kohnen
PURPOSE: Evaluate agreement and repeatability of axial length (AL), corneal curvature and anterior chamber depth (ACD) measurements of two new devices, one using Scheimpflug technology combined with partial coherence interferometry (Pentacam AXL from Oculus, Germany) and one using swept-source OCT (IOL Master 700 from Zeiss, Germany) to a widely-used optical biometer (IOL Master 500 from Zeiss, Germany). DESIGN: Prospective, instrument reliability analysis METHODS: Setting: Department of Ophthalmology, Goethe-University, Frankfurt am Main, Germany Study population: 79 eyes of 79 patients Study Procedure: All eyes were measured with the IOL Master 500, the IOL Master 700 and with the Pentacam AXL...
March 2, 2017: American Journal of Ophthalmology
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