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https://www.readbyqxmd.com/read/28063473/transfer-of-maternal-immunity-to-piglets-is-involved-in-early-protection-against-mycoplasma-hyosynoviae-infection
#1
K Tølbøll Lauritsen, T Hagedorn-Olsen, G Jungersen, U Riber, H Stryhn, N F Friis, P Lind, B Kristensen
Mycoplasma hyosynoviae causes arthritis in pigs older than 12 weeks. The role of colostrum in protection of piglets against M. hyosynoviae infection is not clear. Our objective was therefore to investigate whether transfer of maternal immunity to piglets was involved in early protection against the infection. Experimental infections were carried out in three groups of weaners receiving different levels of M. hyosynoviae-specific colostrum components; Group NC derived from Mycoplasma free sows and possessed no specific immunity to M...
January 2017: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/28048772/mo-de-207a-04-development-and-evaluation-of-an-adaptive-deformation-recovery-and-intensity-correction-adric-ct-reconstruction-technique
#2
Y Zhang, J Ma, J Wang
PURPOSE: Sequential same-patient CT images usually involve deformation-induced and non-deformation-induced voxel intensity changes. An adaptive deformation-recovery and intensity-correction (ADRIC) technique was developed to improve the CT reconstruction accuracy, and to separate deformation from non-deformation-induced voxel intensity changes between sequential CT images. METHODS: ADRIC views the new CT as a deformation of a prior high-quality CT volume, but with additional non-deformation-induced voxel intensity changes...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048111/su-f-j-38-dose-rates-and-preliminary-evaluation-of-contouring-similarity-metrics-using-4d-cone-beam-ct
#3
A Santoso, K Song, Y Qin, S Gardner, C Liu, R Cattaneo, I Chetty, B Movsas, M Aljouni, N Wen
PURPOSE: 4D imaging modalities require detailed characterization for clinical optimization. The On-Board Imager mounted on the linear accelerator was used to investigate dose rates in a tissue mimicking phantom using 4D-CBCT and assess variability of contouring similarity metrics between 4D-CT and 4D-CBCT retrospective reconstructions. METHODS: A 125 kVp thoracic protocol was used. A phantom placed on a motion platform simulated a patient's breathing cycle. An ion chamber was affixed inside the phantom's tissue mimicking cavities (i...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047636/su-f-t-566-absolute-film-dosimetry-for-stereotactic-radiosurgery-and-stereotactic-body-radiotherapy-quality-assurance-using-gafchromic-ebt3-films
#4
N Wen, S Lu, Y Qin, Y Huang, B Zhao, C Liu, I Chetty
PURPOSE: To evaluate the dosimetric uncertainty associated with Gafchromic (EBT3) films and establish an absolute dosimetry protocol for Stereotactic Radiosurgery (SRS) and Stereotactic Body Radiotherapy (SBRT). METHODS: EBT3 films were irradiated at each of seven different dose levels between 1 and 15 Gy with open fields, and standard deviations of dose maps were calculated at each color channel for evaluation. A scanner non-uniform response correction map was built by registering and comparing film doses to the reference diode array-based dose map delivered with the same doses...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047080/su-d-bra-03-analysis-of-systematic-errors-with-2d-3d-image-registration-for-target-localization-and-treatment-delivery-in-stereotactic-radiosurgery
#5
H Xu, I Chetty, N Wen
PURPOSE: Determine systematic deviations between 2D/3D and 3D/3D image registrations with six degrees of freedom (6DOF) for various imaging modalities and registration algorithms on the Varian Edge Linac. METHODS: The 6DOF systematic errors were assessed by comparing automated 2D/3D (kV/MV vs. CT) with 3D/3D (CBCT vs. CT) image registrations from different imaging pairs, CT slice thicknesses, couch angles, similarity measures, etc., using a Rando head and a pelvic phantom...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046890/su-f-j-177-a-novel-image-analysis-technique-center-pixel-method-to-quantify-end-to-end-tests
#6
N Wen, K Snyder, S Scheib, Y Qin, H Li, I Chetty
PURPOSE: To implement a novel image analysis technique, "center pixel method", to quantify end-to-end tests accuracy of a frameless, image guided stereotactic radiosurgery system. METHODS: The localization accuracy was determined by delivering radiation to an end-to-end prototype phantom. The phantom was scanned with 0.8 mm slice thickness. The treatment isocenter was placed at the center of the phantom. In the treatment room, CBCT images of the phantom (kVp=77, mAs=1022, slice thickness 1 mm) were acquired to register to the reference CT images...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046803/mo-ab-bra-09-development-and-evaluation-of-a-biomechanical-modeling-assisted-cbct-reconstruction-technique-bio-recon
#7
Y Zhang, J Nasehi Tehrani, J Wang
PURPOSE: To develop a Bio-recon technique by incorporating the biomechanical properties of anatomical structures into the deformation-based CBCT reconstruction process. METHODS: Bio-recon reconstructs the CBCT by deforming a prior high-quality CT/CBCT using a deformation-vector-field (DVF). The DVF is solved through two alternating steps: 2D-3D deformation and finite-element-analysis based biomechanical modeling. 2D-3D deformation optimizes the DVF through an 'intensity-driven' approach, which updates the DVF to minimize intensity mismatches between the acquired projections and the simulated projections from the deformed CBCT...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046671/mo-fg-campus-iep2-04-multiple-penalties-with-different-orders-for-structure-adaptive-cbct-reconstruction
#8
Q Shi, P Cheng, J Wang, S Tan, S Tan
PURPOSE: To combine total variation (TV) and Hessian penalty in a structure adaptive way for cone-beam CT (CBCT) reconstruction. METHODS: TV is a widely used first order penalty with good ability in suppressing noise and preserving edges but leads to the staircase effect in regions with smooth intensity transition. The second order Hessian penalty can effectively suppress the staircase effect with extra cost of blurring object edges. To take the best of both penalties we proposed a novel method to combine both for CBCT reconstruction in a structure adaptive way...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28028002/aqueous-outflow-a-continuum-from-trabecular-meshwork-to-episcleral-veins
#9
REVIEW
Teresia Carreon, Elizabeth van der Merwe, Ronald L Fellman, Murray Johnstone, Sanjoy K Bhattacharya
In glaucoma, lowered intraocular pressure (IOP) confers neuroprotection. Elevated IOP characterizes glaucoma and arises from impaired aqueous humor (AH) outflow. Increased resistance in the trabecular meshwork (TM), a filter-like structure essential to regulate AH outflow, may result in the impaired outflow. Flow through the 360° circumference of TM structures may be non-uniform, divided into high and low flow regions, termed as segmental. After flowing through the TM, AH enters Schlemm's canal (SC), which expresses both blood and lymphatic markers; AH then passes into collector channel entrances (CCE) along the SC external well...
December 24, 2016: Progress in Retinal and Eye Research
https://www.readbyqxmd.com/read/27951739/phytochemical-antioxidant-and-protective-effect-of-cactus-cladodes-extract-against-lithium-induced-liver-injury-in-rats
#10
Anouar Ben Saad, Brahmi Dalel, Ilhem Rjeibi, Amani Smida, Sana Ncib, Nacim Zouari, Lazhar Zourgui
CONTEXT: Opuntia ficus-indica (L.) Mill. (Castaceae) (cactus) is used in Tunisian medicine for the treatment of various diseases. OBJECTIVE: This study determines phytochemical composition of cactus cladode extract (CCE). It also investigates antioxidant activity and hepatoprotective potential of CCE against lithium carbonate (Li2CO3)-induced liver injury in rats. MATERIALS AND METHODS: Twenty-four Wistar male rats were divided into four groups of six each: a control group given distilled water (0...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/27935696/cyanobacteriochrome-photoreceptors-lacking-the-canonical-cys-residue
#11
Keiji Fushimi, Nathan C Rockwell, Gen Enomoto, Ni-Ni-Win, Shelley S Martin, Fei Gan, Donald A Bryant, Masahiko Ikeuchi, J Clark Lagarias, Rei Narikawa
Cyanobacteriochromes (CBCRs) are cyanobacterial photoreceptors that sense near-ultraviolet to far-red light. Like the distantly related phytochromes, all CBCRs reported to date have a conserved Cys residue (the "canonical Cys" or "first Cys") that forms a thioether linkage to C3(1) of the linear tetrapyrrole (bilin) chromophore. Detection of ultraviolet, violet, and blue light is performed by at least three subfamilies of two-Cys CBCRs that require both the first Cys and a second Cys that forms a second covalent linkage to C10 of the bilin...
December 20, 2016: Biochemistry
https://www.readbyqxmd.com/read/27932085/development-of-a-sensitive-and-false-positive-free-pma-qpcr-viability-assay-to-quantify-vbnc-escherichia-coli-and-evaluate-disinfection-performance-in-wastewater-effluent
#12
Richard J Kibbee, Banu Örmeci
The detection and quantification of viable Escherichia coli cells in wastewater treatment plant effluent is very important as it is the main disinfection efficacy parameter for assessing its public health risk and environmental impact. The aim of this study was to develop a sensitive and false-positive free propidium monoazide-quantitative polymerase chain reaction (PMA-qPCR) assay to quantify the viable but non-culturable (VBNC) E. coli present in secondary wastewater effluent after chlorine disinfection. The qPCR target was the E...
January 2017: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/27913817/the-contribution-of-response-conflict-multisensory-integration-and-body-mediated-attention-to-the-crossmodal-congruency-effect
#13
Francesco Marini, Daniele Romano, Angelo Maravita
The crossmodal congruency task is a consolidated paradigm for investigating interactions between vision and touch. In this task, participants judge the elevation of a tactile target stimulus while ignoring a visual distracter stimulus that may occur at a congruent or incongruent elevation, thus engendering a measure of visuo-tactile interference (crossmodal congruency effect, CCE). The CCE reflects perceptual, attentional, and response-related factors, but their respective roles and interactions have not been set out yet...
December 2, 2016: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/27867950/review-capsule-colonoscopy-a-concise-clinical-overview-of-current-status
#14
REVIEW
Diana E Yung, Emanuele Rondonotti, Anastasios Koulaouzidis
The colon capsule endoscopy (CCE) was first introduced in 2007. Currently, the main clinical indications for CCE are completion of incomplete colonoscopy, polyp detection and investigation of inflammatory bowel disease (IBD). Although conventional colonoscopy is the gold standard in bowel cancer screening, incomplete colonoscopy remains a problem as lesions are missed. CCE compares favourably to computer tomography colonography (CTC) in adenoma detection and has therefore been proposed as a method for completing colonoscopy...
October 2016: Annals of Translational Medicine
https://www.readbyqxmd.com/read/27849885/243-noninvasive-cce-is-not-correlated-with-echocardiographic-single-beat-ventriculoarterial-coupling
#15
Filippo Annoni, Selene Pozzebon, Ottavia Bond, Federica Zama Cavicchi, Sabino Scolletta, Jean-Louis Vincent, Jacques Creteur, Fabio Silvio Taccone
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27830460/hydrophilic-polymer-embolization-another-differential-diagnosis-of-iatrogenic-leg-embolization-after-transcatheter-aortic-valve-replacement
#16
Ikki Komatsu, Hirotsugu Mitsuhashi, Mikihiko Nakaoka, Nobuyuki Komiyama
In daily practice, the iatrogenic complication hydrophilic polymer embolization (HPE) is under-recognized. An 86-year-old male experienced a distal foot embolization after transcatheter aortic valve replacement. Rashes appeared only in the access side foot just after the procedure. Gradual worsening of the rashes was first thought to be cholesterol crystal embolization (CCE), but a pathological examination revealed HPE. The clinical course following the diagnosis was uneventful without notable treatment. We experienced a rare but important alternative differential diagnosis of CCE after catheter intervention...
November 9, 2016: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/27818107/the-continuity-of-care-experience-in-australian-midwifery-education-what-have-we-achieved
#17
Olivia Tierney, Linda Sweet, Don Houston, Lyn Ebert
PROBLEM/BACKGROUND: The Continuity of Care Experience is a mandated workplace based component of midwifery education in Australia. Since its inclusion in midwifery clinical education, the pedagogical approaches used across Australia have varied. AIM: The purpose of this integrative review is to determine the outcomes of the Continuity of Care Experience as an educational model. METHODS: A search for relevant research literature was undertaken in 2015 using a range of databases and by examining relevant bibliographies...
November 3, 2016: Women and Birth: Journal of the Australian College of Midwives
https://www.readbyqxmd.com/read/27797386/femtosecond-charge-and-molecular-dynamics-of-i-containing-organic-molecules-induced-by-intense-x-ray-free-electron-laser-pulses
#18
K Nagaya, K Motomura, E Kukk, Y Takahashi, K Yamazaki, S Ohmura, H Fukuzawa, S Wada, S Mondal, T Tachibana, Y Ito, R Koga, T Sakai, K Matsunami, K Nakamura, M Kanno, A Rudenko, C Nicolas, X-J Liu, C Miron, Y Zhang, Y Jiang, J Chen, M Anand, D E Kim, K Tono, M Yabashi, M Yao, H Kono, K Ueda
We studied the electronic and nuclear dynamics of I-containing organic molecules induced by intense hard X-ray pulses at the XFEL facility SACLA in Japan. The interaction with the intense XFEL pulse causes absorption of multiple X-ray photons by the iodine atom, which results in the creation of many electronic vacancies (positive charges) via the sequential electronic relaxation in the iodine, followed by intramolecular charge redistribution. In a previous study we investigated the subsequent fragmentation by Coulomb explosion of the simplest I-substituted hydrocarbon, iodomethane (CH3I)...
December 16, 2016: Faraday Discussions
https://www.readbyqxmd.com/read/27747276/extracolonic-findings-with-the-pillcam-colon-is-panendoscopy-with-capsule-endoscopy-closer
#19
Javier Romero-Vázquez, Ángel Caunedo-Álvarez, Alba Belda-Cuesta, Victoria Alejandra Jiménez-García, Francisco Pellicer-Bautista, Juan Manuel Herrerías-Gutiérrez
Background and study aims: Colon capsules display images from the moment they are ingested, making the study of other extracolonic areas possible. The aim of this study was to analyze the significance of these extracolonic findings. Patients and methods: In this single-center, prospective study, 165 patients underwent colon capsule endoscopy (CCE) between September 2009 and October 2012 to rule out colonic pathology. Images were recorded, without interruptions, from the moment the capsule was ingested until its battery ran out...
October 2016: Endoscopy International Open
https://www.readbyqxmd.com/read/27694305/in-vitro-germ-cell-differentiation-from-embryonic-stem-cells-of-mice-induction-control-by-bmp4-signaling
#20
Zohreh Makoolati, Mansoureh Movahedin, Mehdi Forouzandeh-Moghadam
The present study aims to confirm and analyze germ-cell related patterns and specific gene expressions at a very early stage of cell commitment. Following the XY cytogenetic confirmation of the CCE mouse embryonic stem cells (mESCs) line, cells were cultured to form embrioid bodies (EBs). Expression pattern assessment of the Mvh, Stra8, α6 and β1 integrin genes in ESC and 1-3-day-old EB showed that all genes except α6 integrin were expressed in the ESC. The mean calibration of Mvh, Stra8 and α6 integrin expression significantly increased upon EB formation compared to the ESCs...
September 30, 2016: Bioscience Reports
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