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https://www.readbyqxmd.com/read/28626998/large-coverage-black-bright-blood-interleaved-imaging-sequence-labbi-for-3d-dynamic-contrast-enhanced-mri-of-vessel-wall
#1
Haikun Qi, Feng Huang, Zechen Zhou, Peter Koken, Niranjan Balu, Bida Zhang, Chun Yuan, Huijun Chen
PURPOSE: To propose a large coverage black-bright blood interleaved imaging sequence (LaBBI) for 3D dynamic contrast-enhanced MRI (DCE-MRI) of the vessel wall. METHODS: LaBBI consists of a 3D black-blood stack-of-stars golden angle radial acquisition with high spatial resolution for vessel wall imaging and a 2D bright-blood Cartesian acquisition with high temporal resolution for arterial input function estimation. The two acquisitions were performed in an interleaved fashion within a single scan...
June 19, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28620633/efficacy-of-human-umbilical-stem-cells-cultured-on-polylactic-polyglycolic-acid-membrane-in-the-treatment-of-multiple-gingival-recession-defects-a-randomized-controlled-clinical-study
#2
Kushal Zanwar, Kiran Kumar Ganji, Manohar L Bhongade
STATEMENT OF THE PROBLEM: Recently allogenic mesenchymal stem cells are proposed to have multipotential progenitor cell capabilities to differentiate into cementoblasts, osteoblasts, and periodontal ligament fibroblasts. PURPOSE: The aim of the present study was to compare the efficacy of human umbilical stem cells cultured on polylactic acid (PLA), polyglycolic acid (PGA) membrane with PLA/PGA membrane alone in the treatment of multiple gingival recession defects...
June 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28612318/somatosensory-neuron-typing-with-high-coverage-single-cell-rna-sequencing-and-functional-analysis
#3
REVIEW
Changlin Li, Sashuang Wang, Yan Chen, Xu Zhang
Different physical and chemical stimuli are detected by the peripheral sensory receptors of dorsal root ganglion (DRG) neurons, and the generated inputs are transmitted via afferent fibers into the central nervous system. The gene expression profiles of DRG neurons contribute to the generation, transmission, and regulation of various somatosensory signals. Recently, the single-cell transcriptomes, cell types, and functional annotations of somatosensory neurons have been studied. In this review, we introduce our classification of DRG neurons based on single-cell RNA-sequencing and functional analyses, and discuss the technical approaches...
June 13, 2017: Neuroscience Bulletin
https://www.readbyqxmd.com/read/28609505/creation-of-a-zone-of-immobile-connective-tissue-with-acellular-dermal-matrix-allografts
#4
Ramzi V Abou-Arraj, Maninder Kaur, Philip J Vassilopoulos, Nicolaas C Geurs
Acellular dermal matrix allografts (ADMs) have been hypothesized to create a zone of immobile connective tissue (ICT) extending apical to the mucogingival junction (MGJ). This 12-month prospective randomized trial investigated the presence of ICT after the use of two commercially available ADMs with coronally advanced flaps in the treatment of Miller Class I and II recession defects. This study demonstrated that the use of either type of ADM resulted in predictable root coverage and a zone of ICT extending apical to the MGJ by 1...
July 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28609501/coronally-advanced-flap-technique-to-treat-class-i-and-ii-gingival-recession-in-combination-with-connective-tissue-graft-or-equine-collagen-matrix-a-retrospective-study
#5
Giacomo Tarquini
This retrospective study aimed to compare the effectiveness of an equine collagen matrix (ECM) with that of a subepithelial connective tissue graft (CTG) in patients affected by Class I and II gingival recessions treated with a coronally advanced flap (CAF) technique. Records of 50 consecutive patients were analyzed. Recession depth, probing depth, keratinized tissue width, and percentage of root coverage had been recorded at baseline and at the 1-year follow-up. The number of patients that achieved complete root coverage was also assessed...
July 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28591059/left-sinus-of-valsalva-aneurysm-ruptured-into-left-ventricle-a-case-report-of-320-multidetector-ct-findings
#6
Kyungsoo Bae, Kyung Nyeo Jeon, Hyang-Im Lee, Jeong Yoon Jang, Sung Eun Park, Kyeong Hwa Ryu, Hye Jin Baek, Bo Hwa Choi, Jin Il Moon, Soo Buem Cho
RATIONALE: Ruptured aneurysm originating from the left coronary sinus of Valsalva into the left ventricle (LV) is extremely rare. Imaging features of sinus aneurysm has been commonly reported using echocardiography or angiography. Here, we report multidetector computed tomography (MDCT) findings of left sinus of Valsalva aneurysm extending into the LV and caused severe aortic regurgitation (AR) in a 44-year-old male with latent infective endocarditis. The role of MDCT in preoperative surgical planning was also emphasized...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28580583/simultaneous-multislice-imaging-for-native-myocardial-t1-mapping-improved-spatial-coverage-in-a-single-breath-hold
#7
Sebastian Weingärtner, Steen Moeller, Sebastian Schmitter, Edward Auerbach, Peter Kellman, Chetan Shenoy, Mehmet Akçakaya
PURPOSE: To develop a saturation recovery myocardial T1 mapping method for the simultaneous multislice acquisition of three slices. METHODS: Saturation pulse-prepared heart rate independent inversion recovery (SAPPHIRE) T1 mapping was implemented with simultaneous multislice imaging using FLASH readouts for faster coverage of the myocardium. Controlled aliasing in parallel imaging (CAIPI) was used to achieve minimal noise amplification in three slices. Multiband reconstruction was performed using three linear reconstruction methods: Slice- and in-plane GRAPPA, CG-SENSE, and Tikhonov-regularized CG-SENSE...
June 5, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28578887/a-retrospective-radiographic-outcomes-assessment-of-1960-initial-posterior-root-canal-treatments-performed-by-endodontists-and-dentists
#8
Kelly Ramey, John Yaccino, James Wealleans
INTRODUCTION: The Air Force Dental Service has established evidence-based treatment standards for endodontics, including 3-dimensional filling of the canal system, cuspal coverage restoration of endodontically treated posterior teeth, and use of rubber dam. The purpose of this retrospective study was to determine the effect of these standards on outcomes of initial posterior root canal treatments (RCTs) completed by Air Force (AF) and civilian dentists with and without accredited postgraduate training...
June 1, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28576113/degenerate-its7-primer-enhances-oomycete-community-coverage-and-pcr-sensitivity-to-aphanomyces-species-economically-important-plant-pathogens
#9
Ahmad Esmaeili Taheri, Syama Chatterton, Bruce Gossen, Debra McLaren
Metagenomic analysis of oomycetes through deep amplicon sequencing has been conducted primarily using the ITS6/ ITS7 primer set that targets the ITS1 region. While this primer set shows a perfect match to most oomycete taxa, ITS7 contains three mismatches to the corresponding binding site of plant pathogens within the genus Aphanomyces. PCR efficiency differs for taxa with uneven primer matching characteristics, which may explain why previous studies have detected this genus at low abundance. To overcome the impact of these mismatches on PCR sensitivity, the mismatched nucleotides were replaced with degenerate nucleotides...
June 2, 2017: Canadian Journal of Microbiology
https://www.readbyqxmd.com/read/28571261/effect-of-different-ferrule-length-on-fracture-resistance-of-endodontically-treated-teeth-an-in-vitro-study
#10
Sushil Kar, Arvind Tripathi, Chavi Trivedi
INTRODUCTION: A ferrule has been described as a key element of tooth preparation when using a post and a core. It is a vertical band of tooth structure at the gingival aspect of crown preparation. It lessens the stress transmission to the root which is due to forces from posts or bending during seating of the post. The incorporation of a ferrule can help to withstand the forces of occlusion, preserve the hermetic seal of the luting cement, and minimize the concentration of stresses at the junction of post and core...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28560040/spatially-segmented-undersampled-mri-temperature-reconstruction-for-transcranial-mr-guided-focused-ultrasound
#11
Pooja Gaur, Beat Werner, Xue Feng, Samuel W Fielden, Craig H Meyer, William A Grissom
BACKGROUND: Volumetric thermometry with fine spatiotemporal resolution is desirable to monitor MR-guided focused ultrasound (MRgFUS) procedures in the brain, but requires some form of accelerated imaging. Accelerated MR temperature imaging methods have been developed that undersample k-space and leverage signal correlations over time to suppress the resulting undersampling artifacts. However, in transcranial MRgFUS treatments, the water bath surrounding the skull creates signal variations that do not follow those correlations, leading to temperature errors in the brain due to signal aliasing...
2017: Journal of Therapeutic Ultrasound
https://www.readbyqxmd.com/read/28555027/performance-of-bds-3-measurement-quality-analysis-precise-orbit-and-clock-determination
#12
Xin Xie, Tao Geng, Qile Zhao, Jingnan Liu, Bin Wang
Since 2015, China has successfully launched five experimental BeiDou global navigation system (BDS-3) satellites for expanding the regional system to global coverage. An initial performance assessment and characterization analysis of the BDS-3 is presented. Twenty days of tracking data have been collected from eleven monitoring stations. The tracking characteristics and measurement quality are analyzed and compared with the regional BDS (BDS-2) in terms of observed carrier-to-noise density ratio, pseudo-range multipath, and noise...
May 28, 2017: Sensors
https://www.readbyqxmd.com/read/28554470/discovery-of-novel-cold-induced-cisp-genes-encoding-small-rna-binding-proteins-related-to-cold-adaptation-in-barley
#13
Mengchao Ying, Shin-Ichiro Kidou
To adapt to cold conditions, barley plants rely on specific mechanisms, which have not been fully understood. In this study, we characterized a novel barley cold-induced gene identified using a PCR-based high coverage gene expression profiling method. The identified gene encodes a small protein that we named CISP1 (Cold-induced Small Protein 1). Homology searches of sequence databases revealed that CISP1 homologs (CISP2 and CISP3) exist in barley genome. Further database analyses showed that the CISP1 homologs were widely distributed in cold-tolerant plants such as wheat and rye...
July 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28497296/preferential-flow-characteristics-of-reclaimed-mine-soils-in-a-surface-coal-mine-dump
#14
Lv Gang, Li Jun, Li Yexin, Wang Ting, Liu Yazhuo, Fu Xinyang
There are a large number of macropores/tubular channels of a few centimeters and plant roots in reclaimed dump soils, which are the main reasons for the formation of soil macropores and soil preferential flow. To systematically study the morphological characteristics and variation of soil preferential flow for different reclaimed vegetations in a dump, a dye-staining experiment and physical and chemical analysis were carried out to investigate the formation mechanism and influencing factors of soil preferential flow in the vegetation restoration process...
June 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28468157/comparison-of-two-screw-retained-free-gingival-grafting-techniques
#15
Bruno Seemann Vieira, Alessandra Rasquel de Oliveira, Miguel Riquelme Rodas, Luciana Prado Maia, Pamela Letícia Dos Santos, Elcia Maria Varize Silveira
Free gingival graft is a predictable technique for increasing the amount of attached gingiva and root coverage; however, its use is limited for cosmetic reasons. To overcome this issue, this study sought to compare 2 free gingival graft techniques that use oral screws to attach grafts. Free gingival graft was performed on teeth 44 to 46 using the traditional technique, while on the opposite side, on teeth 34 to 36, partly epithelialized free gingival grafts were performed. The partly epithelialized free gingival grafts were found to provide better cosmetic results relative to the completely epithelialized free gingival graft, and the use of stabilizing screws was found to be simple and effective...
May 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28465795/the-comparison-of-modified-semilunar-technique-in-conjunction-with-connective-tissue-and-subepithelial-connective-tissue-graft-for-root-coverage-a-randomized-controlled-trial
#16
Niloofar Jenabian, Nafiseh Khanjani, Ali Bijani
BACKGROUND: Gingival recession may result in aesthetically unfavourable effects, difficulty in plaque control, increased susceptibility to root caries, and dentin hypersensitivity. OBJECTIVE: The aim of this study was to compare the use of modified semilunar techniques with connective tissue and subepithelial connective tissue grafts (Langer) for denuded root surface coverage. METHODS: In this randomized clinical trial, fourteen localized recessions of Miller class I to II were treated in 5 subjects...
February 2017: Electronic Physician
https://www.readbyqxmd.com/read/28458588/evolution-and-complexity-of-government-policies-to-protect-the-health-of-undocumented-illegal-migrants-in-thailand-the-unsolved-challenges
#17
Rapeepong Suphanchaimat, Weerasak Putthasri, Phusit Prakongsai, Viroj Tangcharoensathien
BACKGROUND: Of the 65 million residents in Thailand, >1.5 million are undocumented/illegal migrants from neighboring countries. Despite several policies being launched to improve access to care for these migrants, policy implementation has always faced numerous challenges. This study aimed to investigate the policy makers' views on the challenges of implementing policies to protect the health of undocumented/illegal migrants in light of the dynamics of all of the migrant policies in Thailand...
2017: Risk Management and Healthcare Policy
https://www.readbyqxmd.com/read/28422399/dorsal-root-ganglion-stimulation-for-complex-regional-pain-syndrome-crps-recurrence-after-amputation-for-crps-and-failure-of-conventional-spinal-cord-stimulation
#18
Andreas Goebel, Sarah Lewis, Rhodri Phillip, Manohar Sharma
Limb amputation is sometimes being performed in long-standing complex regional pain syndrome (CRPS), although little evidence is available guiding management decisions, including how CRPS recurrence should be managed. This report details the management of a young soldier with CRPS recurrence 2 years after midtibial amputation for CRPS. Conventional spinal cord stimulation did not achieve paraesthetic coverage, or pain relief in the stump, whereas L4 dorsal root ganglion stimulation achieved both coverage and initially modest pain relief, and over time, substantial pain relief...
April 18, 2017: Pain Practice: the Official Journal of World Institute of Pain
https://www.readbyqxmd.com/read/28406062/constraint-approaches-to-the-estimation-of-relative-risk
#19
Yuanyuan Tang, Philip G Jones, Liangrui Sun, Suzanne V Arnold, John A Spertus
In medical and epidemiologic studies, relative risk is usually the parameter of interest. However, calculating relative risk using standard log-Binomial regression approach often encounters non-convergence. A modified Poisson regression, which uses robust variance, was proposed by Zou in 2004. Although the modified Poisson regression with sandwich variance estimator is valid for the estimation of relative risk, the predicted probability of the outcome may be greater than the natural boundary 1 for the unobserved but plausible covariate combinations...
January 1, 2017: Statistical Methods in Medical Research
https://www.readbyqxmd.com/read/28398648/esthetic-rehabilitation-of-retained-primary-teeth-a-conservative-approach
#20
Cristina Parise Gré, Vitor Schweigert Bona, Diogo Pedrollo Lise, Sylvio Monteiro Júnior
With the advancement in ceramic restorations bonded to tooth structure, the treatment has become a feasible and conservative option to restore teeth with alteration in shape when owing to high demand in esthetics, with or without minimum tooth preparation. This article describes a report of a 32-year-old woman who was dissatisfied with her smile. The patient reported that she still had deciduous teeth, and that the maxillary lateral incisors had been restored with direct resin composite to correct the teeth shape...
April 11, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
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