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https://www.readbyqxmd.com/read/29245119/dceus-based-focal-parametric-perfusion-imaging-of-microvessel-with-single-pixel-resolution-and-high-contrast
#1
Diya Wang, Mengnan Xiao, Hong Hu, Yu Zhang, Zhe Su, Shanshan Xu, Yujin Zong, Mingxi Wan
This study aimed to develop a focal microvascular contrast-enhanced ultrasonic parametric perfusion imaging (PPI) scheme to overcome the tradeoff between the resolution, contrast, and accuracy of focal PPI in the tumor. Its resolution was limited by the low signal-to-clutter ratio (SCR) of time-intensity-curves (TICs) induced by multiple limitations, which deteriorated the accuracy and contrast of focal PPI. The scheme was verified by the in-vivo perfusion experiments. Single-pixel TICs were first extracted to ensure PPI with the highest resolution...
December 2, 2017: Ultrasonics
https://www.readbyqxmd.com/read/29233751/differential-binding-of-antibodies-in-pandas-patients-to-cholinergic-interneurons-in-the-striatum
#2
Luciana Frick, Maximiliano Rapanelli, Kantiya Jindachomthong, Paul Grant, James F Leckman, Susan Swedo, Kyle Williams, Christopher Pittenger
Pediatric Autoimmune Neuropsychiatric Disorder Associated with Streptococcus, or PANDAS, is a syndrome of acute childhood onset of obsessive-compulsive disorder and other neuropsychiatric symptoms in the aftermath of an infection with Group A beta-hemolytic Streptococcus (GABHS). Its pathophysiology remains unclear. PANDAS has been proposed to result from cross-reactivity of antibodies raised against GABHS with brain antigens, but the targets of these antibodies are unclear and may be heterogeneous. We developed an in vivo assay in mice to characterize the cellular targets of antibodies in serum from individuals with PANDAS...
December 9, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/29231782/akin10-activity-as-a-cellular-link-between-metabolism-and-circadian-clock-entrainment-in-arabidopsis-thaliana
#3
Alfredo Sánchez-Villarreal, Amanda M Davis, Seth J Davis
AKIN10, the catalytic subunit of the Snf1 (sucrose non-fermenting 1)-related kinase 1 (SnRK1) complex, acts as an energy sensor in plants. We showed that AKIN10-induced expression affects the pace of the circadian clock and particularly the phase of expression of GIGANTEA (GI). The AKIN10 effect on period length required TIME FOR COFFEE (TIC), a circadian-clock component with developmental and metabolic roles. Here we expand on the possible interactions between AKIN10, whose activity is involved in transcriptional reprogramming, and clock elements GI and TIC...
December 12, 2017: Plant Signaling & Behavior
https://www.readbyqxmd.com/read/29228882/medical-education-and-human-trafficking-using-simulation
#4
Hanni Stoklosa, Michelle Lyman, Carrie Bohnert, Olivia Mittel
Healthcare providers have the potential to play a crucial role in human trafficking prevention, identification, and intervention. However, trafficked patients are often unidentified due to lack of education and preparation available to healthcare professionals at all levels of training and practice. To increase victim identification in healthcare settings, providers need to be educated about the issue of trafficking and its clinical presentations in an interactive format that maximizes learning and ultimately patient-centered outcomes...
2017: Medical Education Online
https://www.readbyqxmd.com/read/29219631/tourette-syndrome-and-other-chronic-tic-disorders-an-update-on-clinical-management
#5
Davide Martino, Tamara M Pringsheim
The management of Tourette syndrome (TS) and other chronic tic disorders occurs in multiple stages and begins with comprehensive assessment and complex psychoeducation. Behavioral and pharmacological interventions (second stage) are needed when tics cause physical or psychosocial impairment. Deep brain stimulation surgery or experimental therapies represent the third stage. Areas covered: Discussed are recent advances in assessment and therapy of chronic tic disorders, encompassing the three stages of intervention, with the addition of experimental, non-invasive brain stimulation strategies...
December 8, 2017: Expert Review of Neurotherapeutics
https://www.readbyqxmd.com/read/29218329/high-mobility-group-protein-2-regulated-by-microrna-127-and-small-heterodimer-partner-modulates-pluripotency-of-mouse-embryonic-stem-cells-and-liver-tumor-initiating-cells
#6
Yulan Zhao, Zhihong Yang, Jianguo Wu, Raymond Wu, Santosh K Keshipeddy, Dennis Wright, Li Wang
High-mobility-group protein 2 (HMGB2) expression is upregulated in human liver cancer. However, little is known about its regulatory function. Here we establish HMGB2 as a new modulator of the pluripotency of mouse embryonic stem cells (ESCs). Similar to OCT4 and SOX2, HMGB2 protein is highly expressed in undifferentiated CGR8 cells, whereas it undergoes rapid decline during embryonic body (EB) formation. HMGB2 interacts with OCT4, increases protein expression of OCT4 and SOX2, and enhances their transcriptional activities...
October 2017: Hepatology Communications
https://www.readbyqxmd.com/read/29206306/nail-extracting-behavior-as-an-unusual-manifestation-of-adjustment-disorder-confused-with-onychotillomania
#7
H Lee, W S Lee
Nails are the subject of various psychocutaneous disorders. This spectrum of disorders includes onychophagia, nail tic disorder, onychotillomania, and nail destruction associated with psychiatric disorders.[1] Although self-induced nail injuries, such as biting and rubbing, are common, there was an extraordinary case of self-inflicted, nail-extracting behaviors in an unusual presentation of adjustment disorder. This article is protected by copyright. All rights reserved.
December 5, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29205794/biallelic-mutations-in-lars2-can-cause-perrault-syndrome-type-2-with-neurologic-symptoms
#8
Rika Kosaki, Reiko Horikawa, Eriko Fujii, Kenjiro Kosaki
Perrault syndrome represents a genetically heterogeneous disorder characterized by sensorineural hearing loss in males and females and ovarian dysfunction in females. Causative genes include HARS2, HSD17B4, CLPP, C10orf2, and LARS2. Some patients with Perrault syndrome exhibit neurologic features including learning disability, cerebellar ataxia, and peripheral neuropathy and are classified as type 2 and are clinically separate from those without neurological symptoms other than a hearing loss (type 1). To date, all reported patients with LARS2 mutations (15 patients in 8 families) have been classified as type 1...
December 3, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/29204235/contrast-enhanced-ultrasonography-in-clinical-practice-in-crohn-s-disease-feasibility-of-destruction-replenishment-method-and-software-analysis
#9
Andrea Giannetti, Marco Matergi, Marco Biscontri, Luca Franci
The aim of this Pictorial Essay is to evaluate the feasibility in the clinical practice of CEUS destruction/replenishment method and time intensity curve (TIC) analysis using the available software in patients with Crohn's disease. The ultrasound (US) procedure using contrast agent is briefly described, elaboration and analysis of the US sequences are explained in detail, and some advantages and disadvantages of the method are highlighted. The Authors suggest that the destruction/replenishment method is useful and time-saving in Crohn's disease if multiple measurements are required on intestinal portions adjacent to each other or in different locations...
December 2017: Journal of Ultrasound
https://www.readbyqxmd.com/read/29199464/sperm-rna-elements-as-markers-of-health
#10
Rayanne B Burl, Stephanie Clough, Edward Sendler, Molly Estill, Stephen A Krawetz
Idiopathic infertility, an etiology not identified as part of standard clinical assessment, represents approximately 20% of all infertility cases. Current male infertility diagnosis focuses on the concentration, motility, and morphology of spermatozoa. This is of limited value when predicting birth success and of limited utility when selecting the optimum treatment. At fertilization, spermatozoa provide their genomic contribution, as well as a set of RNAs and proteins that have distinct roles in development...
December 3, 2017: Systems Biology in Reproductive Medicine
https://www.readbyqxmd.com/read/29196508/an-integrated-computational-and-experimental-study-uncovers-fut9-as-a-metabolic-driver-of-colorectal-cancer
#11
Noam Auslander, Chelsea E Cunningham, Behzad M Toosi, Emily J McEwen, Keren Yizhak, Frederick S Vizeacoumar, Sreejit Parameswaran, Nir Gonen, Tanya Freywald, Kalpana K Bhanumathy, Andrew Freywald, Franco J Vizeacoumar, Eytan Ruppin
Metabolic alterations play an important role in cancer and yet, few metabolic cancer driver genes are known. Here we perform a combined genomic and metabolic modeling analysis searching for metabolic drivers of colorectal cancer. Our analysis predicts FUT9, which catalyzes the biosynthesis of Ley glycolipids, as a driver of advanced-stage colon cancer. Experimental testing reveals FUT9's complex dual role; while its knockdown enhances proliferation and migration in monolayers, it suppresses colon cancer cells expansion in tumorspheres and inhibits tumor development in a mouse xenograft models...
December 1, 2017: Molecular Systems Biology
https://www.readbyqxmd.com/read/29193415/estimating-the-arterial-input-function-from-dynamic-contrast-enhanced-mri-data-with-compensation-for-flow-enhancement-i-theory-method-and-phantom-experiments
#12
Jeroen J N van Schie, Cristina Lavini, Lucas J van Vliet, Frans M Vos
BACKGROUND: The arterial input function (AIF) represents the time-dependent arterial contrast agent (CA) concentration that is used in pharmacokinetic modeling. PURPOSE: To develop a novel method for estimating the AIF from dynamic contrast-enhanced (DCE-) MRI data, while compensating for flow enhancement. STUDY TYPE: Signal simulation and phantom measurements. PHANTOM MODEL: Time-intensity curves (TICs) were simulated for different numbers of excitation pulses modeling flow effects...
November 28, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29189386/postoperative-voiding-dysfunction-the-preferred-method-for-catheterization
#13
Colleen D McDermott, Victoria Ryan, Ariel Pulver, Marianne Boutet
OBJECTIVES: Bladder drainage can be achieved by clean intermittent self-catheterization (CISC), transurethral indwelling catheterization (TIC), or with a suprapubic tube (SPT). The primary objective of this study was to determine patient preference for catheter type in the management of potential voiding dysfunction after pelvic organ prolapse (POP) surgery. METHODS: Between 2012 and 2016, patients scheduled for POP surgery were recruited into the study. Before surgery, patients were informed of the potential for postoperative voiding dysfunction and the catheter choices were discussed...
November 17, 2017: Female Pelvic Medicine & Reconstructive Surgery
https://www.readbyqxmd.com/read/29189378/simultaneous-brain-and-lung-histiocytic-sarcoma-revealed-on-18f-fdg-pet-ct
#14
Yu Pan, Yifan Zhang
A 52-year-old man with intermittent head motor tics, aphasia and right upper extremity weakness had an F-FDG avid left front lobe brain lesion, and a left upper lobe lung lesion on PET/CT. The brain lesion was surgically resected, and was diagnosed pathologically as a histiocytic sarcoma (HS). The lung lesion was also a HS via bronchial biopsy. HS is rare and generally involves nodes as shown on PET/CT in a few case reports. The current case with simultaneous brain and lung HS lesions adds new imaging pattern information of the disease to the literature...
November 17, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/29186222/high-frequency-irreversible-electroporation-targets-resilient-tumor-initiating-cells-in-ovarian-cancer
#15
A Rolong, E M Schmelz, R V Davalos
We explored the use of irreversible electroporation (IRE) and high-frequency irreversible electroporation (H-FIRE) to induce cell death of tumor-initiating cells using a mouse ovarian surface epithelial (MOSE) cancer model. Tumor-initiating cells (TICs) can be successfully destroyed using pulsed electric field parameters common to irreversible electroporation protocols. Additionally, high-frequency pulses seem to induce cell death of TICs at significantly lower electric fields suggesting H-FIRE can be used to selectively target TICs and malignant late-stage cells while sparing the non-malignant cells in the surrounding tissue...
November 29, 2017: Integrative Biology: Quantitative Biosciences From Nano to Macro
https://www.readbyqxmd.com/read/29185535/behavioral-therapy-for-tourette-syndrome-and-chronic-tic-disorders
#16
REVIEW
Odette Fründt, Douglas Woods, Christos Ganos
Purpose of review: To summarize behavioral interventions for the treatment of primary tic disorders. Recent findings: Although tics were attributed to a disordered weak volition, the shift towards neurobiological models of tic disorders also transformed nonpharmacologic treatment practices. Current international guidelines recommend habit reversal training, comprehensive behavioral intervention, and exposure and response prevention as first-line therapies for tics...
April 2017: Neurology. Clinical Practice
https://www.readbyqxmd.com/read/29185077/premonitory-urge-for-tics-scale-puts-replication-and-extension-of-psychometric-properties-in-youth-with-chronic-tic-disorders-ctds
#17
Jeremy M Raines, Kimberly R Edwards, Martin F Sherman, Christopher I Higginson, Joel B Winnick, Kelly Navin, Julie M Gettings, Fatmata Conteh, Shannon M Bennett, Matthew W Specht
Individuals with chronic tic disorders (CTDs) frequently describe aversive subjective sensory sensations that precede their tics. The first aim of the present study was to explore the psychometric properties of a standardized self-report measure to assess premonitory urges in CTDs, The Premonitory Urge for Tics Scale (PUTS), by replicating the analyses of Woods et al. (J Dev Behav Pediatr 26:397-403, 2005) using a sample twice the size of theirs. The second aim was to conduct an exploratory factor analysis of the PUTS...
November 28, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/29177144/habit-tic-deformity-of-bilateral-thumb-and-toenails-in-a-young-boy-an-unusual-occurrence
#18
Archana Singal
No abstract text is available yet for this article.
October 2017: Skin Appendage Disorders
https://www.readbyqxmd.com/read/29169342/mvqtlcim-composite-interval-mapping-of-multivariate-traits-in-a-hybrid-f1-population-of-outbred-species
#19
Fenxiang Liu, Chunfa Tong, Shentong Tao, Jiyan Wu, Yuhua Chen, Dan Yao, Huogen Li, Jisen Shi
BACKGROUND: With the plummeting cost of the next-generation sequencing technologies, high-density genetic linkage maps could be constructed in a forest hybrid F1 population. However, based on such genetic maps, quantitative trait loci (QTL) mapping cannot be directly conducted with traditional statistical methods or tools because the linkage phase and segregation pattern of molecular markers are not always fixed as in inbred lines. RESULTS: We implemented the traditional composite interval mapping (CIM) method to multivariate trait data in forest trees and developed the corresponding software, mvqtlcim...
November 23, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/29168516/computational-screening-of-functional-groups-for-capture-of-toxic-industrial-chemicals-in-porous-materials
#20
Ki Chul Kim, David Fairen-Jimenez, Randall Q Snurr
A thermodynamic analysis using quantum chemical methods was carried out to identify optimal functional group candidates that can be included in metal-organic frameworks and activated carbons for the selective capture of toxic industrial chemicals (TICs) in humid air. We calculated the binding energies of 14 critical TICs plus water with a series of 10 functional groups attached to a naphthalene ring model. Using vibrational calculations, the free energies of adsorption were calculated in addition to the binding energies...
November 23, 2017: Physical Chemistry Chemical Physics: PCCP
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